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-rw-r--r--drivers/power/Kconfig5
-rw-r--r--drivers/power/Makefile1
-rw-r--r--drivers/power/ab8500_charger.c8
-rw-r--r--drivers/power/avs/Kconfig12
-rw-r--r--drivers/power/avs/Makefile1
-rw-r--r--drivers/power/avs/smartreflex.c1126
-rw-r--r--drivers/power/bq27x00_battery.c155
-rw-r--r--drivers/power/charger-manager.c152
-rw-r--r--drivers/power/ds2780_battery.c11
-rw-r--r--drivers/power/ds2781_battery.c14
-rw-r--r--drivers/power/gpio-charger.c2
-rw-r--r--drivers/power/isp1704_charger.c8
-rw-r--r--drivers/power/lp8727_charger.c2
-rw-r--r--drivers/power/max17042_battery.c8
-rw-r--r--drivers/power/olpc_battery.c63
-rw-r--r--drivers/power/pda_power.c32
-rw-r--r--drivers/power/power_supply_core.c65
-rw-r--r--drivers/power/power_supply_sysfs.c8
-rw-r--r--drivers/power/sbs-battery.c2
-rw-r--r--drivers/power/smb347-charger.c123
-rw-r--r--drivers/power/test_power.c75
-rw-r--r--drivers/power/twl4030_charger.c93
22 files changed, 1864 insertions, 102 deletions
diff --git a/drivers/power/Kconfig b/drivers/power/Kconfig
index e3a3b4956f0..c1892f321c4 100644
--- a/drivers/power/Kconfig
+++ b/drivers/power/Kconfig
@@ -268,6 +268,7 @@ config CHARGER_GPIO
config CHARGER_MANAGER
bool "Battery charger manager for multiple chargers"
depends on REGULATOR && RTC_CLASS
+ select EXTCON
help
Say Y to enable charger-manager support, which allows multiple
chargers attached to a battery and multiple batteries attached to a
@@ -301,7 +302,7 @@ config AB8500_BM
bool "AB8500 Battery Management Driver"
depends on AB8500_CORE && AB8500_GPADC
help
- Say Y to include support for AB5500 battery management.
+ Say Y to include support for AB8500 battery management.
config AB8500_BATTERY_THERM_ON_BATCTRL
bool "Thermistor connected on BATCTRL ADC"
@@ -310,3 +311,5 @@ config AB8500_BATTERY_THERM_ON_BATCTRL
Say Y to enable battery temperature measurements using
thermistor connected on BATCTRL ADC.
endif # POWER_SUPPLY
+
+source "drivers/power/avs/Kconfig"
diff --git a/drivers/power/Makefile b/drivers/power/Makefile
index b6b243416c0..ee58afb1e71 100644
--- a/drivers/power/Makefile
+++ b/drivers/power/Makefile
@@ -43,4 +43,5 @@ obj-$(CONFIG_CHARGER_GPIO) += gpio-charger.o
obj-$(CONFIG_CHARGER_MANAGER) += charger-manager.o
obj-$(CONFIG_CHARGER_MAX8997) += max8997_charger.o
obj-$(CONFIG_CHARGER_MAX8998) += max8998_charger.o
+obj-$(CONFIG_POWER_AVS) += avs/
obj-$(CONFIG_CHARGER_SMB347) += smb347-charger.o
diff --git a/drivers/power/ab8500_charger.c b/drivers/power/ab8500_charger.c
index d2303d0b7c7..d4f0c98428c 100644
--- a/drivers/power/ab8500_charger.c
+++ b/drivers/power/ab8500_charger.c
@@ -2517,7 +2517,7 @@ static int __devexit ab8500_charger_remove(struct platform_device *pdev)
dev_err(di->dev, "%s mask and set failed\n", __func__);
usb_unregister_notifier(di->usb_phy, &di->nb);
- usb_put_transceiver(di->usb_phy);
+ usb_put_phy(di->usb_phy);
/* Delete the work queue */
destroy_workqueue(di->charger_wq);
@@ -2688,8 +2688,8 @@ static int __devinit ab8500_charger_probe(struct platform_device *pdev)
goto free_ac;
}
- di->usb_phy = usb_get_transceiver();
- if (!di->usb_phy) {
+ di->usb_phy = usb_get_phy(USB_PHY_TYPE_USB2);
+ if (IS_ERR_OR_NULL(di->usb_phy)) {
dev_err(di->dev, "failed to get usb transceiver\n");
ret = -EINVAL;
goto free_usb;
@@ -2747,7 +2747,7 @@ free_irq:
free_irq(irq, di);
}
put_usb_phy:
- usb_put_transceiver(di->usb_phy);
+ usb_put_phy(di->usb_phy);
free_usb:
power_supply_unregister(&di->usb_chg.psy);
free_ac:
diff --git a/drivers/power/avs/Kconfig b/drivers/power/avs/Kconfig
new file mode 100644
index 00000000000..2a1008b6112
--- /dev/null
+++ b/drivers/power/avs/Kconfig
@@ -0,0 +1,12 @@
+menuconfig POWER_AVS
+ bool "Adaptive Voltage Scaling class support"
+ help
+ AVS is a power management technique which finely controls the
+ operating voltage of a device in order to optimize (i.e. reduce)
+ its power consumption.
+ At a given operating point the voltage is adapted depending on
+ static factors (chip manufacturing process) and dynamic factors
+ (temperature depending performance).
+ AVS is also called SmartReflex on OMAP devices.
+
+ Say Y here to enable Adaptive Voltage Scaling class support.
diff --git a/drivers/power/avs/Makefile b/drivers/power/avs/Makefile
new file mode 100644
index 00000000000..0843386a6c1
--- /dev/null
+++ b/drivers/power/avs/Makefile
@@ -0,0 +1 @@
+obj-$(CONFIG_POWER_AVS_OMAP) += smartreflex.o
diff --git a/drivers/power/avs/smartreflex.c b/drivers/power/avs/smartreflex.c
new file mode 100644
index 00000000000..44efc6e202a
--- /dev/null
+++ b/drivers/power/avs/smartreflex.c
@@ -0,0 +1,1126 @@
+/*
+ * OMAP SmartReflex Voltage Control
+ *
+ * Author: Thara Gopinath <thara@ti.com>
+ *
+ * Copyright (C) 2012 Texas Instruments, Inc.
+ * Thara Gopinath <thara@ti.com>
+ *
+ * Copyright (C) 2008 Nokia Corporation
+ * Kalle Jokiniemi
+ *
+ * Copyright (C) 2007 Texas Instruments, Inc.
+ * Lesly A M <x0080970@ti.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/module.h>
+#include <linux/interrupt.h>
+#include <linux/clk.h>
+#include <linux/io.h>
+#include <linux/debugfs.h>
+#include <linux/delay.h>
+#include <linux/slab.h>
+#include <linux/pm_runtime.h>
+#include <linux/power/smartreflex.h>
+
+#define SMARTREFLEX_NAME_LEN 16
+#define NVALUE_NAME_LEN 40
+#define SR_DISABLE_TIMEOUT 200
+
+/* sr_list contains all the instances of smartreflex module */
+static LIST_HEAD(sr_list);
+
+static struct omap_sr_class_data *sr_class;
+static struct omap_sr_pmic_data *sr_pmic_data;
+static struct dentry *sr_dbg_dir;
+
+static inline void sr_write_reg(struct omap_sr *sr, unsigned offset, u32 value)
+{
+ __raw_writel(value, (sr->base + offset));
+}
+
+static inline void sr_modify_reg(struct omap_sr *sr, unsigned offset, u32 mask,
+ u32 value)
+{
+ u32 reg_val;
+
+ /*
+ * Smartreflex error config register is special as it contains
+ * certain status bits which if written a 1 into means a clear
+ * of those bits. So in order to make sure no accidental write of
+ * 1 happens to those status bits, do a clear of them in the read
+ * value. This mean this API doesn't rewrite values in these bits
+ * if they are currently set, but does allow the caller to write
+ * those bits.
+ */
+ if (sr->ip_type == SR_TYPE_V1 && offset == ERRCONFIG_V1)
+ mask |= ERRCONFIG_STATUS_V1_MASK;
+ else if (sr->ip_type == SR_TYPE_V2 && offset == ERRCONFIG_V2)
+ mask |= ERRCONFIG_VPBOUNDINTST_V2;
+
+ reg_val = __raw_readl(sr->base + offset);
+ reg_val &= ~mask;
+
+ value &= mask;
+
+ reg_val |= value;
+
+ __raw_writel(reg_val, (sr->base + offset));
+}
+
+static inline u32 sr_read_reg(struct omap_sr *sr, unsigned offset)
+{
+ return __raw_readl(sr->base + offset);
+}
+
+static struct omap_sr *_sr_lookup(struct voltagedomain *voltdm)
+{
+ struct omap_sr *sr_info;
+
+ if (!voltdm) {
+ pr_err("%s: Null voltage domain passed!\n", __func__);
+ return ERR_PTR(-EINVAL);
+ }
+
+ list_for_each_entry(sr_info, &sr_list, node) {
+ if (voltdm == sr_info->voltdm)
+ return sr_info;
+ }
+
+ return ERR_PTR(-ENODATA);
+}
+
+static irqreturn_t sr_interrupt(int irq, void *data)
+{
+ struct omap_sr *sr_info = data;
+ u32 status = 0;
+
+ switch (sr_info->ip_type) {
+ case SR_TYPE_V1:
+ /* Read the status bits */
+ status = sr_read_reg(sr_info, ERRCONFIG_V1);
+
+ /* Clear them by writing back */
+ sr_write_reg(sr_info, ERRCONFIG_V1, status);
+ break;
+ case SR_TYPE_V2:
+ /* Read the status bits */
+ status = sr_read_reg(sr_info, IRQSTATUS);
+
+ /* Clear them by writing back */
+ sr_write_reg(sr_info, IRQSTATUS, status);
+ break;
+ default:
+ dev_err(&sr_info->pdev->dev, "UNKNOWN IP type %d\n",
+ sr_info->ip_type);
+ return IRQ_NONE;
+ }
+
+ if (sr_class->notify)
+ sr_class->notify(sr_info, status);
+
+ return IRQ_HANDLED;
+}
+
+static void sr_set_clk_length(struct omap_sr *sr)
+{
+ struct clk *sys_ck;
+ u32 sys_clk_speed;
+
+ if (cpu_is_omap34xx())
+ sys_ck = clk_get(NULL, "sys_ck");
+ else
+ sys_ck = clk_get(NULL, "sys_clkin_ck");
+
+ if (IS_ERR(sys_ck)) {
+ dev_err(&sr->pdev->dev, "%s: unable to get sys clk\n",
+ __func__);
+ return;
+ }
+
+ sys_clk_speed = clk_get_rate(sys_ck);
+ clk_put(sys_ck);
+
+ switch (sys_clk_speed) {
+ case 12000000:
+ sr->clk_length = SRCLKLENGTH_12MHZ_SYSCLK;
+ break;
+ case 13000000:
+ sr->clk_length = SRCLKLENGTH_13MHZ_SYSCLK;
+ break;
+ case 19200000:
+ sr->clk_length = SRCLKLENGTH_19MHZ_SYSCLK;
+ break;
+ case 26000000:
+ sr->clk_length = SRCLKLENGTH_26MHZ_SYSCLK;
+ break;
+ case 38400000:
+ sr->clk_length = SRCLKLENGTH_38MHZ_SYSCLK;
+ break;
+ default:
+ dev_err(&sr->pdev->dev, "%s: Invalid sysclk value: %d\n",
+ __func__, sys_clk_speed);
+ break;
+ }
+}
+
+static void sr_set_regfields(struct omap_sr *sr)
+{
+ /*
+ * For time being these values are defined in smartreflex.h
+ * and populated during init. May be they can be moved to board
+ * file or pmic specific data structure. In that case these structure
+ * fields will have to be populated using the pdata or pmic structure.
+ */
+ if (cpu_is_omap34xx() || cpu_is_omap44xx()) {
+ sr->err_weight = OMAP3430_SR_ERRWEIGHT;
+ sr->err_maxlimit = OMAP3430_SR_ERRMAXLIMIT;
+ sr->accum_data = OMAP3430_SR_ACCUMDATA;
+ if (!(strcmp(sr->name, "smartreflex_mpu_iva"))) {
+ sr->senn_avgweight = OMAP3430_SR1_SENNAVGWEIGHT;
+ sr->senp_avgweight = OMAP3430_SR1_SENPAVGWEIGHT;
+ } else {
+ sr->senn_avgweight = OMAP3430_SR2_SENNAVGWEIGHT;
+ sr->senp_avgweight = OMAP3430_SR2_SENPAVGWEIGHT;
+ }
+ }
+}
+
+static void sr_start_vddautocomp(struct omap_sr *sr)
+{
+ if (!sr_class || !(sr_class->enable) || !(sr_class->configure)) {
+ dev_warn(&sr->pdev->dev,
+ "%s: smartreflex class driver not registered\n",
+ __func__);
+ return;
+ }
+
+ if (!sr_class->enable(sr))
+ sr->autocomp_active = true;
+}
+
+static void sr_stop_vddautocomp(struct omap_sr *sr)
+{
+ if (!sr_class || !(sr_class->disable)) {
+ dev_warn(&sr->pdev->dev,
+ "%s: smartreflex class driver not registered\n",
+ __func__);
+ return;
+ }
+
+ if (sr->autocomp_active) {
+ sr_class->disable(sr, 1);
+ sr->autocomp_active = false;
+ }
+}
+
+/*
+ * This function handles the intializations which have to be done
+ * only when both sr device and class driver regiter has
+ * completed. This will be attempted to be called from both sr class
+ * driver register and sr device intializtion API's. Only one call
+ * will ultimately succeed.
+ *
+ * Currently this function registers interrupt handler for a particular SR
+ * if smartreflex class driver is already registered and has
+ * requested for interrupts and the SR interrupt line in present.
+ */
+static int sr_late_init(struct omap_sr *sr_info)
+{
+ struct omap_sr_data *pdata = sr_info->pdev->dev.platform_data;
+ struct resource *mem;
+ int ret = 0;
+
+ if (sr_class->notify && sr_class->notify_flags && sr_info->irq) {
+ ret = request_irq(sr_info->irq, sr_interrupt,
+ 0, sr_info->name, sr_info);
+ if (ret)
+ goto error;
+ disable_irq(sr_info->irq);
+ }
+
+ if (pdata && pdata->enable_on_init)
+ sr_start_vddautocomp(sr_info);
+
+ return ret;
+
+error:
+ iounmap(sr_info->base);
+ mem = platform_get_resource(sr_info->pdev, IORESOURCE_MEM, 0);
+ release_mem_region(mem->start, resource_size(mem));
+ list_del(&sr_info->node);
+ dev_err(&sr_info->pdev->dev, "%s: ERROR in registering"
+ "interrupt handler. Smartreflex will"
+ "not function as desired\n", __func__);
+ kfree(sr_info);
+
+ return ret;
+}
+
+static void sr_v1_disable(struct omap_sr *sr)
+{
+ int timeout = 0;
+ int errconf_val = ERRCONFIG_MCUACCUMINTST | ERRCONFIG_MCUVALIDINTST |
+ ERRCONFIG_MCUBOUNDINTST;
+
+ /* Enable MCUDisableAcknowledge interrupt */
+ sr_modify_reg(sr, ERRCONFIG_V1,
+ ERRCONFIG_MCUDISACKINTEN, ERRCONFIG_MCUDISACKINTEN);
+
+ /* SRCONFIG - disable SR */
+ sr_modify_reg(sr, SRCONFIG, SRCONFIG_SRENABLE, 0x0);
+
+ /* Disable all other SR interrupts and clear the status as needed */
+ if (sr_read_reg(sr, ERRCONFIG_V1) & ERRCONFIG_VPBOUNDINTST_V1)
+ errconf_val |= ERRCONFIG_VPBOUNDINTST_V1;
+ sr_modify_reg(sr, ERRCONFIG_V1,
+ (ERRCONFIG_MCUACCUMINTEN | ERRCONFIG_MCUVALIDINTEN |
+ ERRCONFIG_MCUBOUNDINTEN | ERRCONFIG_VPBOUNDINTEN_V1),
+ errconf_val);
+
+ /*
+ * Wait for SR to be disabled.
+ * wait until ERRCONFIG.MCUDISACKINTST = 1. Typical latency is 1us.
+ */
+ sr_test_cond_timeout((sr_read_reg(sr, ERRCONFIG_V1) &
+ ERRCONFIG_MCUDISACKINTST), SR_DISABLE_TIMEOUT,
+ timeout);
+
+ if (timeout >= SR_DISABLE_TIMEOUT)
+ dev_warn(&sr->pdev->dev, "%s: Smartreflex disable timedout\n",
+ __func__);
+
+ /* Disable MCUDisableAcknowledge interrupt & clear pending interrupt */
+ sr_modify_reg(sr, ERRCONFIG_V1, ERRCONFIG_MCUDISACKINTEN,
+ ERRCONFIG_MCUDISACKINTST);
+}
+
+static void sr_v2_disable(struct omap_sr *sr)
+{
+ int timeout = 0;
+
+ /* Enable MCUDisableAcknowledge interrupt */
+ sr_write_reg(sr, IRQENABLE_SET, IRQENABLE_MCUDISABLEACKINT);
+
+ /* SRCONFIG - disable SR */
+ sr_modify_reg(sr, SRCONFIG, SRCONFIG_SRENABLE, 0x0);
+
+ /*
+ * Disable all other SR interrupts and clear the status
+ * write to status register ONLY on need basis - only if status
+ * is set.
+ */
+ if (sr_read_reg(sr, ERRCONFIG_V2) & ERRCONFIG_VPBOUNDINTST_V2)
+ sr_modify_reg(sr, ERRCONFIG_V2, ERRCONFIG_VPBOUNDINTEN_V2,
+ ERRCONFIG_VPBOUNDINTST_V2);
+ else
+ sr_modify_reg(sr, ERRCONFIG_V2, ERRCONFIG_VPBOUNDINTEN_V2,
+ 0x0);
+ sr_write_reg(sr, IRQENABLE_CLR, (IRQENABLE_MCUACCUMINT |
+ IRQENABLE_MCUVALIDINT |
+ IRQENABLE_MCUBOUNDSINT));
+ sr_write_reg(sr, IRQSTATUS, (IRQSTATUS_MCUACCUMINT |
+ IRQSTATUS_MCVALIDINT |
+ IRQSTATUS_MCBOUNDSINT));
+
+ /*
+ * Wait for SR to be disabled.
+ * wait until IRQSTATUS.MCUDISACKINTST = 1. Typical latency is 1us.
+ */
+ sr_test_cond_timeout((sr_read_reg(sr, IRQSTATUS) &
+ IRQSTATUS_MCUDISABLEACKINT), SR_DISABLE_TIMEOUT,
+ timeout);
+
+ if (timeout >= SR_DISABLE_TIMEOUT)
+ dev_warn(&sr->pdev->dev, "%s: Smartreflex disable timedout\n",
+ __func__);
+
+ /* Disable MCUDisableAcknowledge interrupt & clear pending interrupt */
+ sr_write_reg(sr, IRQENABLE_CLR, IRQENABLE_MCUDISABLEACKINT);
+ sr_write_reg(sr, IRQSTATUS, IRQSTATUS_MCUDISABLEACKINT);
+}
+
+static struct omap_sr_nvalue_table *sr_retrieve_nvalue_row(
+ struct omap_sr *sr, u32 efuse_offs)
+{
+ int i;
+
+ if (!sr->nvalue_table) {
+ dev_warn(&sr->pdev->dev, "%s: Missing ntarget value table\n",
+ __func__);
+ return NULL;
+ }
+
+ for (i = 0; i < sr->nvalue_count; i++) {
+ if (sr->nvalue_table[i].efuse_offs == efuse_offs)
+ return &sr->nvalue_table[i];
+ }
+
+ return NULL;
+}
+
+/* Public Functions */
+
+/**
+ * sr_configure_errgen() - Configures the smrtreflex to perform AVS using the
+ * error generator module.
+ * @voltdm: VDD pointer to which the SR module to be configured belongs to.
+ *
+ * This API is to be called from the smartreflex class driver to
+ * configure the error generator module inside the smartreflex module.
+ * SR settings if using the ERROR module inside Smartreflex.
+ * SR CLASS 3 by default uses only the ERROR module where as
+ * SR CLASS 2 can choose between ERROR module and MINMAXAVG
+ * module. Returns 0 on success and error value in case of failure.
+ */
+int sr_configure_errgen(struct voltagedomain *voltdm)
+{
+ u32 sr_config, sr_errconfig, errconfig_offs;
+ u32 vpboundint_en, vpboundint_st;
+ u32 senp_en = 0, senn_en = 0;
+ u8 senp_shift, senn_shift;
+ struct omap_sr *sr = _sr_lookup(voltdm);
+
+ if (IS_ERR(sr)) {
+ pr_warning("%s: omap_sr struct for voltdm not found\n", __func__);
+ return PTR_ERR(sr);
+ }
+
+ if (!sr->clk_length)
+ sr_set_clk_length(sr);
+
+ senp_en = sr->senp_mod;
+ senn_en = sr->senn_mod;
+
+ sr_config = (sr->clk_length << SRCONFIG_SRCLKLENGTH_SHIFT) |
+ SRCONFIG_SENENABLE | SRCONFIG_ERRGEN_EN;
+
+ switch (sr->ip_type) {
+ case SR_TYPE_V1:
+ sr_config |= SRCONFIG_DELAYCTRL;
+ senn_shift = SRCONFIG_SENNENABLE_V1_SHIFT;
+ senp_shift = SRCONFIG_SENPENABLE_V1_SHIFT;
+ errconfig_offs = ERRCONFIG_V1;
+ vpboundint_en = ERRCONFIG_VPBOUNDINTEN_V1;
+ vpboundint_st = ERRCONFIG_VPBOUNDINTST_V1;
+ break;
+ case SR_TYPE_V2:
+ senn_shift = SRCONFIG_SENNENABLE_V2_SHIFT;
+ senp_shift = SRCONFIG_SENPENABLE_V2_SHIFT;
+ errconfig_offs = ERRCONFIG_V2;
+ vpboundint_en = ERRCONFIG_VPBOUNDINTEN_V2;
+ vpboundint_st = ERRCONFIG_VPBOUNDINTST_V2;
+ break;
+ default:
+ dev_err(&sr->pdev->dev, "%s: Trying to Configure smartreflex"
+ "module without specifying the ip\n", __func__);
+ return -EINVAL;
+ }
+
+ sr_config |= ((senn_en << senn_shift) | (senp_en << senp_shift));
+ sr_write_reg(sr, SRCONFIG, sr_config);
+ sr_errconfig = (sr->err_weight << ERRCONFIG_ERRWEIGHT_SHIFT) |
+ (sr->err_maxlimit << ERRCONFIG_ERRMAXLIMIT_SHIFT) |
+ (sr->err_minlimit << ERRCONFIG_ERRMINLIMIT_SHIFT);
+ sr_modify_reg(sr, errconfig_offs, (SR_ERRWEIGHT_MASK |
+ SR_ERRMAXLIMIT_MASK | SR_ERRMINLIMIT_MASK),
+ sr_errconfig);
+
+ /* Enabling the interrupts if the ERROR module is used */
+ sr_modify_reg(sr, errconfig_offs, (vpboundint_en | vpboundint_st),
+ vpboundint_en);
+
+ return 0;
+}
+
+/**
+ * sr_disable_errgen() - Disables SmartReflex AVS module's errgen component
+ * @voltdm: VDD pointer to which the SR module to be configured belongs to.
+ *
+ * This API is to be called from the smartreflex class driver to
+ * disable the error generator module inside the smartreflex module.
+ *
+ * Returns 0 on success and error value in case of failure.
+ */
+int sr_disable_errgen(struct voltagedomain *voltdm)
+{
+ u32 errconfig_offs;
+ u32 vpboundint_en, vpboundint_st;
+ struct omap_sr *sr = _sr_lookup(voltdm);
+
+ if (IS_ERR(sr)) {
+ pr_warning("%s: omap_sr struct for voltdm not found\n", __func__);
+ return PTR_ERR(sr);
+ }
+
+ switch (sr->ip_type) {
+ case SR_TYPE_V1:
+ errconfig_offs = ERRCONFIG_V1;
+ vpboundint_en = ERRCONFIG_VPBOUNDINTEN_V1;
+ vpboundint_st = ERRCONFIG_VPBOUNDINTST_V1;
+ break;
+ case SR_TYPE_V2:
+ errconfig_offs = ERRCONFIG_V2;
+ vpboundint_en = ERRCONFIG_VPBOUNDINTEN_V2;
+ vpboundint_st = ERRCONFIG_VPBOUNDINTST_V2;
+ break;
+ default:
+ dev_err(&sr->pdev->dev, "%s: Trying to Configure smartreflex"
+ "module without specifying the ip\n", __func__);
+ return -EINVAL;
+ }
+
+ /* Disable the interrupts of ERROR module */
+ sr_modify_reg(sr, errconfig_offs, vpboundint_en | vpboundint_st, 0);
+
+ /* Disable the Sensor and errorgen */
+ sr_modify_reg(sr, SRCONFIG, SRCONFIG_SENENABLE | SRCONFIG_ERRGEN_EN, 0);
+
+ return 0;
+}
+
+/**
+ * sr_configure_minmax() - Configures the smrtreflex to perform AVS using the
+ * minmaxavg module.
+ * @voltdm: VDD pointer to which the SR module to be configured belongs to.
+ *
+ * This API is to be called from the smartreflex class driver to
+ * configure the minmaxavg module inside the smartreflex module.
+ * SR settings if using the ERROR module inside Smartreflex.
+ * SR CLASS 3 by default uses only the ERROR module where as
+ * SR CLASS 2 can choose between ERROR module and MINMAXAVG
+ * module. Returns 0 on success and error value in case of failure.
+ */
+int sr_configure_minmax(struct voltagedomain *voltdm)
+{
+ u32 sr_config, sr_avgwt;
+ u32 senp_en = 0, senn_en = 0;
+ u8 senp_shift, senn_shift;
+ struct omap_sr *sr = _sr_lookup(voltdm);
+
+ if (IS_ERR(sr)) {
+ pr_warning("%s: omap_sr struct for voltdm not found\n", __func__);
+ return PTR_ERR(sr);
+ }
+
+ if (!sr->clk_length)
+ sr_set_clk_length(sr);
+
+ senp_en = sr->senp_mod;
+ senn_en = sr->senn_mod;
+
+ sr_config = (sr->clk_length << SRCONFIG_SRCLKLENGTH_SHIFT) |
+ SRCONFIG_SENENABLE |
+ (sr->accum_data << SRCONFIG_ACCUMDATA_SHIFT);
+
+ switch (sr->ip_type) {
+ case SR_TYPE_V1:
+ sr_config |= SRCONFIG_DELAYCTRL;
+ senn_shift = SRCONFIG_SENNENABLE_V1_SHIFT;
+ senp_shift = SRCONFIG_SENPENABLE_V1_SHIFT;
+ break;
+ case SR_TYPE_V2:
+ senn_shift = SRCONFIG_SENNENABLE_V2_SHIFT;
+ senp_shift = SRCONFIG_SENPENABLE_V2_SHIFT;
+ break;
+ default:
+ dev_err(&sr->pdev->dev, "%s: Trying to Configure smartreflex"
+ "module without specifying the ip\n", __func__);
+ return -EINVAL;
+ }
+
+ sr_config |= ((senn_en << senn_shift) | (senp_en << senp_shift));
+ sr_write_reg(sr, SRCONFIG, sr_config);
+ sr_avgwt = (sr->senp_avgweight << AVGWEIGHT_SENPAVGWEIGHT_SHIFT) |
+ (sr->senn_avgweight << AVGWEIGHT_SENNAVGWEIGHT_SHIFT);
+ sr_write_reg(sr, AVGWEIGHT, sr_avgwt);
+
+ /*
+ * Enabling the interrupts if MINMAXAVG module is used.
+ * TODO: check if all the interrupts are mandatory
+ */
+ switch (sr->ip_type) {
+ case SR_TYPE_V1:
+ sr_modify_reg(sr, ERRCONFIG_V1,
+ (ERRCONFIG_MCUACCUMINTEN | ERRCONFIG_MCUVALIDINTEN |
+ ERRCONFIG_MCUBOUNDINTEN),
+ (ERRCONFIG_MCUACCUMINTEN | ERRCONFIG_MCUACCUMINTST |
+ ERRCONFIG_MCUVALIDINTEN | ERRCONFIG_MCUVALIDINTST |
+ ERRCONFIG_MCUBOUNDINTEN | ERRCONFIG_MCUBOUNDINTST));
+ break;
+ case SR_TYPE_V2:
+ sr_write_reg(sr, IRQSTATUS,
+ IRQSTATUS_MCUACCUMINT | IRQSTATUS_MCVALIDINT |
+ IRQSTATUS_MCBOUNDSINT | IRQSTATUS_MCUDISABLEACKINT);
+ sr_write_reg(sr, IRQENABLE_SET,
+ IRQENABLE_MCUACCUMINT | IRQENABLE_MCUVALIDINT |
+ IRQENABLE_MCUBOUNDSINT | IRQENABLE_MCUDISABLEACKINT);
+ break;
+ default:
+ dev_err(&sr->pdev->dev, "%s: Trying to Configure smartreflex"
+ "module without specifying the ip\n", __func__);
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+/**
+ * sr_enable() - Enables the smartreflex module.
+ * @voltdm: VDD pointer to which the SR module to be configured belongs to.
+ * @volt: The voltage at which the Voltage domain associated with
+ * the smartreflex module is operating at.
+ * This is required only to program the correct Ntarget value.
+ *
+ * This API is to be called from the smartreflex class driver to
+ * enable a smartreflex module. Returns 0 on success. Returns error
+ * value if the voltage passed is wrong or if ntarget value is wrong.
+ */
+int sr_enable(struct voltagedomain *voltdm, unsigned long volt)
+{
+ struct omap_volt_data *volt_data;
+ struct omap_sr *sr = _sr_lookup(voltdm);
+ struct omap_sr_nvalue_table *nvalue_row;
+ int ret;
+
+ if (IS_ERR(sr)) {
+ pr_warning("%s: omap_sr struct for voltdm not found\n", __func__);
+ return PTR_ERR(sr);
+ }
+
+ volt_data = omap_voltage_get_voltdata(sr->voltdm, volt);
+
+ if (IS_ERR(volt_data)) {
+ dev_warn(&sr->pdev->dev, "%s: Unable to get voltage table"
+ "for nominal voltage %ld\n", __func__, volt);
+ return PTR_ERR(volt_data);
+ }
+
+ nvalue_row = sr_retrieve_nvalue_row(sr, volt_data->sr_efuse_offs);
+
+ if (!nvalue_row) {
+ dev_warn(&sr->pdev->dev, "%s: failure getting SR data for this voltage %ld\n",
+ __func__, volt);
+ return -ENODATA;
+ }
+
+ /* errminlimit is opp dependent and hence linked to voltage */
+ sr->err_minlimit = nvalue_row->errminlimit;
+
+ pm_runtime_get_sync(&sr->pdev->dev);
+
+ /* Check if SR is already enabled. If yes do nothing */
+ if (sr_read_reg(sr, SRCONFIG) & SRCONFIG_SRENABLE)
+ return 0;
+
+ /* Configure SR */
+ ret = sr_class->configure(sr);
+ if (ret)
+ return ret;
+
+ sr_write_reg(sr, NVALUERECIPROCAL, nvalue_row->nvalue);
+
+ /* SRCONFIG - enable SR */
+ sr_modify_reg(sr, SRCONFIG, SRCONFIG_SRENABLE, SRCONFIG_SRENABLE);
+ return 0;
+}
+
+/**
+ * sr_disable() - Disables the smartreflex module.
+ * @voltdm: VDD pointer to which the SR module to be configured belongs to.
+ *
+ * This API is to be called from the smartreflex class driver to
+ * disable a smartreflex module.
+ */
+void sr_disable(struct voltagedomain *voltdm)
+{
+ struct omap_sr *sr = _sr_lookup(voltdm);
+
+ if (IS_ERR(sr)) {
+ pr_warning("%s: omap_sr struct for voltdm not found\n", __func__);
+ return;
+ }
+
+ /* Check if SR clocks are already disabled. If yes do nothing */
+ if (pm_runtime_suspended(&sr->pdev->dev))
+ return;
+
+ /*
+ * Disable SR if only it is indeed enabled. Else just
+ * disable the clocks.
+ */
+ if (sr_read_reg(sr, SRCONFIG) & SRCONFIG_SRENABLE) {
+ switch (sr->ip_type) {
+ case SR_TYPE_V1:
+ sr_v1_disable(sr);
+ break;
+ case SR_TYPE_V2:
+ sr_v2_disable(sr);
+ break;
+ default:
+ dev_err(&sr->pdev->dev, "UNKNOWN IP type %d\n",
+ sr->ip_type);
+ }
+ }
+
+ pm_runtime_put_sync_suspend(&sr->pdev->dev);
+}
+
+/**
+ * sr_register_class() - API to register a smartreflex class parameters.
+ * @class_data: The structure containing various sr class specific data.
+ *
+ * This API is to be called by the smartreflex class driver to register itself
+ * with the smartreflex driver during init. Returns 0 on success else the
+ * error value.
+ */
+int sr_register_class(struct omap_sr_class_data *class_data)
+{
+ struct omap_sr *sr_info;
+
+ if (!class_data) {
+ pr_warning("%s:, Smartreflex class data passed is NULL\n",
+ __func__);
+ return -EINVAL;
+ }
+
+ if (sr_class) {
+ pr_warning("%s: Smartreflex class driver already registered\n",
+ __func__);
+ return -EBUSY;
+ }
+
+ sr_class = class_data;
+
+ /*
+ * Call into late init to do intializations that require
+ * both sr driver and sr class driver to be initiallized.
+ */
+ list_for_each_entry(sr_info, &sr_list, node)
+ sr_late_init(sr_info);
+
+ return 0;
+}
+
+/**
+ * omap_sr_enable() - API to enable SR clocks and to call into the
+ * registered smartreflex class enable API.
+ * @voltdm: VDD pointer to which the SR module to be configured belongs to.
+ *
+ * This API is to be called from the kernel in order to enable
+ * a particular smartreflex module. This API will do the initial
+ * configurations to turn on the smartreflex module and in turn call
+ * into the registered smartreflex class enable API.
+ */
+void omap_sr_enable(struct voltagedomain *voltdm)
+{
+ struct omap_sr *sr = _sr_lookup(voltdm);
+
+ if (IS_ERR(sr)) {
+ pr_warning("%s: omap_sr struct for voltdm not found\n", __func__);
+ return;
+ }
+
+ if (!sr->autocomp_active)
+ return;
+
+ if (!sr_class || !(sr_class->enable) || !(sr_class->configure)) {
+ dev_warn(&sr->pdev->dev, "%s: smartreflex class driver not"
+ "registered\n", __func__);
+ return;
+ }
+
+ sr_class->enable(sr);
+}
+
+/**
+ * omap_sr_disable() - API to disable SR without resetting the voltage
+ * processor voltage
+ * @voltdm: VDD pointer to which the SR module to be configured belongs to.
+ *
+ * This API is to be called from the kernel in order to disable
+ * a particular smartreflex module. This API will in turn call
+ * into the registered smartreflex class disable API. This API will tell
+ * the smartreflex class disable not to reset the VP voltage after
+ * disabling smartreflex.
+ */
+void omap_sr_disable(struct voltagedomain *voltdm)
+{
+ struct omap_sr *sr = _sr_lookup(voltdm);
+
+ if (IS_ERR(sr)) {
+ pr_warning("%s: omap_sr struct for voltdm not found\n", __func__);
+ return;
+ }
+
+ if (!sr->autocomp_active)
+ return;
+
+ if (!sr_class || !(sr_class->disable)) {
+ dev_warn(&sr->pdev->dev, "%s: smartreflex class driver not"
+ "registered\n", __func__);
+ return;
+ }
+
+ sr_class->disable(sr, 0);
+}
+
+/**
+ * omap_sr_disable_reset_volt() - API to disable SR and reset the
+ * voltage processor voltage
+ * @voltdm: VDD pointer to which the SR module to be configured belongs to.
+ *
+ * This API is to be called from the kernel in order to disable
+ * a particular smartreflex module. This API will in turn call
+ * into the registered smartreflex class disable API. This API will tell
+ * the smartreflex class disable to reset the VP voltage after
+ * disabling smartreflex.
+ */
+void omap_sr_disable_reset_volt(struct voltagedomain *voltdm)
+{
+ struct omap_sr *sr = _sr_lookup(voltdm);
+
+ if (IS_ERR(sr)) {
+ pr_warning("%s: omap_sr struct for voltdm not found\n", __func__);
+ return;
+ }
+
+ if (!sr->autocomp_active)
+ return;
+
+ if (!sr_class || !(sr_class->disable)) {
+ dev_warn(&sr->pdev->dev, "%s: smartreflex class driver not"
+ "registered\n", __func__);
+ return;
+ }
+
+ sr_class->disable(sr, 1);
+}
+
+/**
+ * omap_sr_register_pmic() - API to register pmic specific info.
+ * @pmic_data: The structure containing pmic specific data.
+ *
+ * This API is to be called from the PMIC specific code to register with
+ * smartreflex driver pmic specific info. Currently the only info required
+ * is the smartreflex init on the PMIC side.
+ */
+void omap_sr_register_pmic(struct omap_sr_pmic_data *pmic_data)
+{
+ if (!pmic_data) {
+ pr_warning("%s: Trying to register NULL PMIC data structure"
+ "with smartreflex\n", __func__);
+ return;
+ }
+
+ sr_pmic_data = pmic_data;
+}
+
+/* PM Debug FS entries to enable and disable smartreflex. */
+static int omap_sr_autocomp_show(void *data, u64 *val)
+{
+ struct omap_sr *sr_info = data;
+
+ if (!sr_info) {
+ pr_warning("%s: omap_sr struct not found\n", __func__);
+ return -EINVAL;
+ }
+
+ *val = sr_info->autocomp_active;
+
+ return 0;
+}
+
+static int omap_sr_autocomp_store(void *data, u64 val)
+{
+ struct omap_sr *sr_info = data;
+
+ if (!sr_info) {
+ pr_warning("%s: omap_sr struct not found\n", __func__);
+ return -EINVAL;
+ }
+
+ /* Sanity check */
+ if (val > 1) {
+ pr_warning("%s: Invalid argument %lld\n", __func__, val);
+ return -EINVAL;
+ }
+
+ /* control enable/disable only if there is a delta in value */
+ if (sr_info->autocomp_active != val) {
+ if (!val)
+ sr_stop_vddautocomp(sr_info);
+ else
+ sr_start_vddautocomp(sr_info);
+ }
+
+ return 0;
+}
+
+DEFINE_SIMPLE_ATTRIBUTE(pm_sr_fops, omap_sr_autocomp_show,
+ omap_sr_autocomp_store, "%llu\n");
+
+static int __init omap_sr_probe(struct platform_device *pdev)
+{
+ struct omap_sr *sr_info;
+ struct omap_sr_data *pdata = pdev->dev.platform_data;
+ struct resource *mem, *irq;
+ struct dentry *nvalue_dir;
+ int i, ret = 0;
+
+ sr_info = kzalloc(sizeof(struct omap_sr), GFP_KERNEL);
+ if (!sr_info) {
+ dev_err(&pdev->dev, "%s: unable to allocate sr_info\n",
+ __func__);
+ return -ENOMEM;
+ }
+
+ platform_set_drvdata(pdev, sr_info);
+
+ if (!pdata) {
+ dev_err(&pdev->dev, "%s: platform data missing\n", __func__);
+ ret = -EINVAL;
+ goto err_free_devinfo;
+ }
+
+ mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (!mem) {
+ dev_err(&pdev->dev, "%s: no mem resource\n", __func__);
+ ret = -ENODEV;
+ goto err_free_devinfo;
+ }
+
+ mem = request_mem_region(mem->start, resource_size(mem),
+ dev_name(&pdev->dev));
+ if (!mem) {
+ dev_err(&pdev->dev, "%s: no mem region\n", __func__);
+ ret = -EBUSY;
+ goto err_free_devinfo;
+ }
+
+ irq = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
+
+ pm_runtime_enable(&pdev->dev);
+ pm_runtime_irq_safe(&pdev->dev);
+
+ sr_info->name = kasprintf(GFP_KERNEL, "%s", pdata->name);
+ if (!sr_info->name) {
+ dev_err(&pdev->dev, "%s: Unable to alloc SR instance name\n",
+ __func__);
+ ret = -ENOMEM;
+ goto err_release_region;
+ }
+
+ sr_info->pdev = pdev;
+ sr_info->srid = pdev->id;
+ sr_info->voltdm = pdata->voltdm;
+ sr_info->nvalue_table = pdata->nvalue_table;
+ sr_info->nvalue_count = pdata->nvalue_count;
+ sr_info->senn_mod = pdata->senn_mod;
+ sr_info->senp_mod = pdata->senp_mod;
+ sr_info->autocomp_active = false;
+ sr_info->ip_type = pdata->ip_type;
+ sr_info->base = ioremap(mem->start, resource_size(mem));
+ if (!sr_info->base) {
+ dev_err(&pdev->dev, "%s: ioremap fail\n", __func__);
+ ret = -ENOMEM;
+ goto err_release_region;
+ }
+
+ if (irq)
+ sr_info->irq = irq->start;
+
+ sr_set_clk_length(sr_info);
+ sr_set_regfields(sr_info);
+
+ list_add(&sr_info->node, &sr_list);
+
+ /*
+ * Call into late init to do intializations that require
+ * both sr driver and sr class driver to be initiallized.
+ */
+ if (sr_class) {
+ ret = sr_late_init(sr_info);
+ if (ret) {
+ pr_warning("%s: Error in SR late init\n", __func__);
+ goto err_iounmap;
+ }
+ }
+
+ dev_info(&pdev->dev, "%s: SmartReflex driver initialized\n", __func__);
+ if (!sr_dbg_dir) {
+ sr_dbg_dir = debugfs_create_dir("smartreflex", NULL);
+ if (IS_ERR_OR_NULL(sr_dbg_dir)) {
+ ret = PTR_ERR(sr_dbg_dir);
+ pr_err("%s:sr debugfs dir creation failed(%d)\n",
+ __func__, ret);
+ goto err_iounmap;
+ }
+ }
+
+ sr_info->dbg_dir = debugfs_create_dir(sr_info->name, sr_dbg_dir);
+ if (IS_ERR_OR_NULL(sr_info->dbg_dir)) {
+ dev_err(&pdev->dev, "%s: Unable to create debugfs directory\n",
+ __func__);
+ ret = PTR_ERR(sr_info->dbg_dir);
+ goto err_free_name;
+ }
+
+ (void) debugfs_create_file("autocomp", S_IRUGO | S_IWUSR,
+ sr_info->dbg_dir, (void *)sr_info, &pm_sr_fops);
+ (void) debugfs_create_x32("errweight", S_IRUGO, sr_info->dbg_dir,
+ &sr_info->err_weight);
+ (void) debugfs_create_x32("errmaxlimit", S_IRUGO, sr_info->dbg_dir,
+ &sr_info->err_maxlimit);
+
+ nvalue_dir = debugfs_create_dir("nvalue", sr_info->dbg_dir);
+ if (IS_ERR_OR_NULL(nvalue_dir)) {
+ dev_err(&pdev->dev, "%s: Unable to create debugfs directory"
+ "for n-values\n", __func__);
+ ret = PTR_ERR(nvalue_dir);
+ goto err_debugfs;
+ }
+
+ if (sr_info->nvalue_count == 0 || !sr_info->nvalue_table) {
+ dev_warn(&pdev->dev, "%s: %s: No Voltage table for the corresponding vdd. Cannot create debugfs entries for n-values\n",
+ __func__, sr_info->name);
+
+ ret = -ENODATA;
+ goto err_debugfs;
+ }
+
+ for (i = 0; i < sr_info->nvalue_count; i++) {
+ char name[NVALUE_NAME_LEN + 1];
+
+ snprintf(name, sizeof(name), "volt_%lu",
+ sr_info->nvalue_table[i].volt_nominal);
+ (void) debugfs_create_x32(name, S_IRUGO | S_IWUSR, nvalue_dir,
+ &(sr_info->nvalue_table[i].nvalue));
+ snprintf(name, sizeof(name), "errminlimit_%lu",
+ sr_info->nvalue_table[i].volt_nominal);
+ (void) debugfs_create_x32(name, S_IRUGO | S_IWUSR, nvalue_dir,
+ &(sr_info->nvalue_table[i].errminlimit));
+
+ }
+
+ return ret;
+
+err_debugfs:
+ debugfs_remove_recursive(sr_info->dbg_dir);
+err_free_name:
+ kfree(sr_info->name);
+err_iounmap:
+ list_del(&sr_info->node);
+ iounmap(sr_info->base);
+err_release_region:
+ release_mem_region(mem->start, resource_size(mem));
+err_free_devinfo:
+ kfree(sr_info);
+
+ return ret;
+}
+
+static int __devexit omap_sr_remove(struct platform_device *pdev)
+{
+ struct omap_sr_data *pdata = pdev->dev.platform_data;
+ struct omap_sr *sr_info;
+ struct resource *mem;
+
+ if (!pdata) {
+ dev_err(&pdev->dev, "%s: platform data missing\n", __func__);
+ return -EINVAL;
+ }
+
+ sr_info = _sr_lookup(pdata->voltdm);
+ if (IS_ERR(sr_info)) {
+ dev_warn(&pdev->dev, "%s: omap_sr struct not found\n",
+ __func__);
+ return PTR_ERR(sr_info);
+ }
+
+ if (sr_info->autocomp_active)
+ sr_stop_vddautocomp(sr_info);
+ if (sr_info->dbg_dir)
+ debugfs_remove_recursive(sr_info->dbg_dir);
+
+ list_del(&sr_info->node);
+ iounmap(sr_info->base);
+ kfree(sr_info->name);
+ kfree(sr_info);
+ mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ release_mem_region(mem->start, resource_size(mem));
+
+ return 0;
+}
+
+static void __devexit omap_sr_shutdown(struct platform_device *pdev)
+{
+ struct omap_sr_data *pdata = pdev->dev.platform_data;
+ struct omap_sr *sr_info;
+
+ if (!pdata) {
+ dev_err(&pdev->dev, "%s: platform data missing\n", __func__);
+ return;
+ }
+
+ sr_info = _sr_lookup(pdata->voltdm);
+ if (IS_ERR(sr_info)) {
+ dev_warn(&pdev->dev, "%s: omap_sr struct not found\n",
+ __func__);
+ return;
+ }
+
+ if (sr_info->autocomp_active)
+ sr_stop_vddautocomp(sr_info);
+
+ return;
+}
+
+static struct platform_driver smartreflex_driver = {
+ .remove = __devexit_p(omap_sr_remove),
+ .shutdown = __devexit_p(omap_sr_shutdown),
+ .driver = {
+ .name = "smartreflex",
+ },
+};
+
+static int __init sr_init(void)
+{
+ int ret = 0;
+
+ /*
+ * sr_init is a late init. If by then a pmic specific API is not
+ * registered either there is no need for anything to be done on
+ * the PMIC side or somebody has forgotten to register a PMIC
+ * handler. Warn for the second condition.
+ */
+ if (sr_pmic_data && sr_pmic_data->sr_pmic_init)
+ sr_pmic_data->sr_pmic_init();
+ else
+ pr_warning("%s: No PMIC hook to init smartreflex\n", __func__);
+
+ ret = platform_driver_probe(&smartreflex_driver, omap_sr_probe);
+ if (ret) {
+ pr_err("%s: platform driver register failed for SR\n",
+ __func__);
+ return ret;
+ }
+
+ return 0;
+}
+late_initcall(sr_init);
+
+static void __exit sr_exit(void)
+{
+ platform_driver_unregister(&smartreflex_driver);
+}
+module_exit(sr_exit);
+
+MODULE_DESCRIPTION("OMAP Smartreflex Driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:" DRIVER_NAME);
+MODULE_AUTHOR("Texas Instruments Inc");
diff --git a/drivers/power/bq27x00_battery.c b/drivers/power/bq27x00_battery.c
index f5d6d379f2f..181ddece518 100644
--- a/drivers/power/bq27x00_battery.c
+++ b/drivers/power/bq27x00_battery.c
@@ -22,6 +22,7 @@
* Datasheets:
* http://focus.ti.com/docs/prod/folders/print/bq27000.html
* http://focus.ti.com/docs/prod/folders/print/bq27500.html
+ * http://www.ti.com/product/bq27425-g1
*/
#include <linux/module.h>
@@ -51,6 +52,7 @@
#define BQ27x00_REG_LMD 0x12 /* Last measured discharge */
#define BQ27x00_REG_CYCT 0x2A /* Cycle count total */
#define BQ27x00_REG_AE 0x22 /* Available energy */
+#define BQ27x00_POWER_AVG 0x24
#define BQ27000_REG_RSOC 0x0B /* Relative State-of-Charge */
#define BQ27000_REG_ILMD 0x76 /* Initial last measured discharge */
@@ -66,15 +68,21 @@
#define BQ27500_FLAG_SOCF BIT(1) /* State-of-Charge threshold final */
#define BQ27500_FLAG_SOC1 BIT(2) /* State-of-Charge threshold 1 */
#define BQ27500_FLAG_FC BIT(9)
+#define BQ27500_FLAG_OTC BIT(15)
+
+/* bq27425 register addresses are same as bq27x00 addresses minus 4 */
+#define BQ27425_REG_OFFSET 0x04
+#define BQ27425_REG_SOC 0x18 /* Register address plus offset */
#define BQ27000_RS 20 /* Resistor sense */
+#define BQ27x00_POWER_CONSTANT (256 * 29200 / 1000)
struct bq27x00_device_info;
struct bq27x00_access_methods {
int (*read)(struct bq27x00_device_info *di, u8 reg, bool single);
};
-enum bq27x00_chip { BQ27000, BQ27500 };
+enum bq27x00_chip { BQ27000, BQ27500, BQ27425};
struct bq27x00_reg_cache {
int temperature;
@@ -86,6 +94,8 @@ struct bq27x00_reg_cache {
int capacity;
int energy;
int flags;
+ int power_avg;
+ int health;
};
struct bq27x00_device_info {
@@ -123,6 +133,22 @@ static enum power_supply_property bq27x00_battery_props[] = {
POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN,
POWER_SUPPLY_PROP_CYCLE_COUNT,
POWER_SUPPLY_PROP_ENERGY_NOW,
+ POWER_SUPPLY_PROP_POWER_AVG,
+ POWER_SUPPLY_PROP_HEALTH,
+};
+
+static enum power_supply_property bq27425_battery_props[] = {
+ POWER_SUPPLY_PROP_STATUS,
+ POWER_SUPPLY_PROP_PRESENT,
+ POWER_SUPPLY_PROP_VOLTAGE_NOW,
+ POWER_SUPPLY_PROP_CURRENT_NOW,
+ POWER_SUPPLY_PROP_CAPACITY,
+ POWER_SUPPLY_PROP_CAPACITY_LEVEL,
+ POWER_SUPPLY_PROP_TEMP,
+ POWER_SUPPLY_PROP_TECHNOLOGY,
+ POWER_SUPPLY_PROP_CHARGE_FULL,
+ POWER_SUPPLY_PROP_CHARGE_NOW,
+ POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN,
};
static unsigned int poll_interval = 360;
@@ -137,10 +163,24 @@ MODULE_PARM_DESC(poll_interval, "battery poll interval in seconds - " \
static inline int bq27x00_read(struct bq27x00_device_info *di, u8 reg,
bool single)
{
+ if (di->chip == BQ27425)
+ return di->bus.read(di, reg - BQ27425_REG_OFFSET, single);
return di->bus.read(di, reg, single);
}
/*
+ * Higher versions of the chip like BQ27425 and BQ27500
+ * differ from BQ27000 and BQ27200 in calculation of certain
+ * parameters. Hence we need to check for the chip type.
+ */
+static bool bq27xxx_is_chip_version_higher(struct bq27x00_device_info *di)
+{
+ if (di->chip == BQ27425 || di->chip == BQ27500)
+ return true;
+ return false;
+}
+
+/*
* Return the battery Relative State-of-Charge
* Or < 0 if something fails.
*/
@@ -150,6 +190,8 @@ static int bq27x00_battery_read_rsoc(struct bq27x00_device_info *di)
if (di->chip == BQ27500)
rsoc = bq27x00_read(di, BQ27500_REG_SOC, false);
+ else if (di->chip == BQ27425)
+ rsoc = bq27x00_read(di, BQ27425_REG_SOC, false);
else
rsoc = bq27x00_read(di, BQ27000_REG_RSOC, true);
@@ -174,7 +216,7 @@ static int bq27x00_battery_read_charge(struct bq27x00_device_info *di, u8 reg)
return charge;
}
- if (di->chip == BQ27500)
+ if (bq27xxx_is_chip_version_higher(di))
charge *= 1000;
else
charge = charge * 3570 / BQ27000_RS;
@@ -208,7 +250,7 @@ static int bq27x00_battery_read_ilmd(struct bq27x00_device_info *di)
{
int ilmd;
- if (di->chip == BQ27500)
+ if (bq27xxx_is_chip_version_higher(di))
ilmd = bq27x00_read(di, BQ27500_REG_DCAP, false);
else
ilmd = bq27x00_read(di, BQ27000_REG_ILMD, true);
@@ -218,7 +260,7 @@ static int bq27x00_battery_read_ilmd(struct bq27x00_device_info *di)
return ilmd;
}
- if (di->chip == BQ27500)
+ if (bq27xxx_is_chip_version_higher(di))
ilmd *= 1000;
else
ilmd = ilmd * 256 * 3570 / BQ27000_RS;
@@ -262,7 +304,7 @@ static int bq27x00_battery_read_temperature(struct bq27x00_device_info *di)
return temp;
}
- if (di->chip == BQ27500)
+ if (bq27xxx_is_chip_version_higher(di))
temp -= 2731;
else
temp = ((temp * 5) - 5463) / 2;
@@ -306,14 +348,70 @@ static int bq27x00_battery_read_time(struct bq27x00_device_info *di, u8 reg)
return tval * 60;
}
+/*
+ * Read a power avg register.
+ * Return < 0 if something fails.
+ */
+static int bq27x00_battery_read_pwr_avg(struct bq27x00_device_info *di, u8 reg)
+{
+ int tval;
+
+ tval = bq27x00_read(di, reg, false);
+ if (tval < 0) {
+ dev_err(di->dev, "error reading power avg rgister %02x: %d\n",
+ reg, tval);
+ return tval;
+ }
+
+ if (di->chip == BQ27500)
+ return tval;
+ else
+ return (tval * BQ27x00_POWER_CONSTANT) / BQ27000_RS;
+}
+
+/*
+ * Read flag register.
+ * Return < 0 if something fails.
+ */
+static int bq27x00_battery_read_health(struct bq27x00_device_info *di)
+{
+ int tval;
+
+ tval = bq27x00_read(di, BQ27x00_REG_FLAGS, false);
+ if (tval < 0) {
+ dev_err(di->dev, "error reading flag register:%d\n", tval);
+ return tval;
+ }
+
+ if ((di->chip == BQ27500)) {
+ if (tval & BQ27500_FLAG_SOCF)
+ tval = POWER_SUPPLY_HEALTH_DEAD;
+ else if (tval & BQ27500_FLAG_OTC)
+ tval = POWER_SUPPLY_HEALTH_OVERHEAT;
+ else
+ tval = POWER_SUPPLY_HEALTH_GOOD;
+ return tval;
+ } else {
+ if (tval & BQ27000_FLAG_EDV1)
+ tval = POWER_SUPPLY_HEALTH_DEAD;
+ else
+ tval = POWER_SUPPLY_HEALTH_GOOD;
+ return tval;
+ }
+
+ return -1;
+}
+
static void bq27x00_update(struct bq27x00_device_info *di)
{
struct bq27x00_reg_cache cache = {0, };
bool is_bq27500 = di->chip == BQ27500;
+ bool is_bq27425 = di->chip == BQ27425;
cache.flags = bq27x00_read(di, BQ27x00_REG_FLAGS, !is_bq27500);
if (cache.flags >= 0) {
- if (!is_bq27500 && (cache.flags & BQ27000_FLAG_CI)) {
+ if (!is_bq27500 && !is_bq27425
+ && (cache.flags & BQ27000_FLAG_CI)) {
dev_info(di->dev, "battery is not calibrated! ignoring capacity values\n");
cache.capacity = -ENODATA;
cache.energy = -ENODATA;
@@ -321,16 +419,30 @@ static void bq27x00_update(struct bq27x00_device_info *di)
cache.time_to_empty_avg = -ENODATA;
cache.time_to_full = -ENODATA;
cache.charge_full = -ENODATA;
+ cache.health = -ENODATA;
} else {
cache.capacity = bq27x00_battery_read_rsoc(di);
- cache.energy = bq27x00_battery_read_energy(di);
- cache.time_to_empty = bq27x00_battery_read_time(di, BQ27x00_REG_TTE);
- cache.time_to_empty_avg = bq27x00_battery_read_time(di, BQ27x00_REG_TTECP);
- cache.time_to_full = bq27x00_battery_read_time(di, BQ27x00_REG_TTF);
+ if (!is_bq27425) {
+ cache.energy = bq27x00_battery_read_energy(di);
+ cache.time_to_empty =
+ bq27x00_battery_read_time(di,
+ BQ27x00_REG_TTE);
+ cache.time_to_empty_avg =
+ bq27x00_battery_read_time(di,
+ BQ27x00_REG_TTECP);
+ cache.time_to_full =
+ bq27x00_battery_read_time(di,
+ BQ27x00_REG_TTF);
+ }
cache.charge_full = bq27x00_battery_read_lmd(di);
+ cache.health = bq27x00_battery_read_health(di);
}
cache.temperature = bq27x00_battery_read_temperature(di);
+ if (!is_bq27425)
+ cache.cycle_count = bq27x00_battery_read_cyct(di);
cache.cycle_count = bq27x00_battery_read_cyct(di);
+ cache.power_avg =
+ bq27x00_battery_read_pwr_avg(di, BQ27x00_POWER_AVG);
/* We only have to read charge design full once */
if (di->charge_design_full <= 0)
@@ -376,7 +488,7 @@ static int bq27x00_battery_current(struct bq27x00_device_info *di,
return curr;
}
- if (di->chip == BQ27500) {
+ if (bq27xxx_is_chip_version_higher(di)) {
/* bq27500 returns signed value */
val->intval = (int)((s16)curr) * 1000;
} else {
@@ -397,7 +509,7 @@ static int bq27x00_battery_status(struct bq27x00_device_info *di,
{
int status;
- if (di->chip == BQ27500) {
+ if (bq27xxx_is_chip_version_higher(di)) {
if (di->cache.flags & BQ27500_FLAG_FC)
status = POWER_SUPPLY_STATUS_FULL;
else if (di->cache.flags & BQ27500_FLAG_DSC)
@@ -425,7 +537,7 @@ static int bq27x00_battery_capacity_level(struct bq27x00_device_info *di,
{
int level;
- if (di->chip == BQ27500) {
+ if (bq27xxx_is_chip_version_higher(di)) {
if (di->cache.flags & BQ27500_FLAG_FC)
level = POWER_SUPPLY_CAPACITY_LEVEL_FULL;
else if (di->cache.flags & BQ27500_FLAG_SOC1)
@@ -550,6 +662,12 @@ static int bq27x00_battery_get_property(struct power_supply *psy,
case POWER_SUPPLY_PROP_ENERGY_NOW:
ret = bq27x00_simple_value(di->cache.energy, val);
break;
+ case POWER_SUPPLY_PROP_POWER_AVG:
+ ret = bq27x00_simple_value(di->cache.power_avg, val);
+ break;
+ case POWER_SUPPLY_PROP_HEALTH:
+ ret = bq27x00_simple_value(di->cache.health, val);
+ break;
default:
return -EINVAL;
}
@@ -570,8 +688,14 @@ static int bq27x00_powersupply_init(struct bq27x00_device_info *di)
int ret;
di->bat.type = POWER_SUPPLY_TYPE_BATTERY;
- di->bat.properties = bq27x00_battery_props;
- di->bat.num_properties = ARRAY_SIZE(bq27x00_battery_props);
+ di->chip = BQ27425;
+ if (di->chip == BQ27425) {
+ di->bat.properties = bq27425_battery_props;
+ di->bat.num_properties = ARRAY_SIZE(bq27425_battery_props);
+ } else {
+ di->bat.properties = bq27x00_battery_props;
+ di->bat.num_properties = ARRAY_SIZE(bq27x00_battery_props);
+ }
di->bat.get_property = bq27x00_battery_get_property;
di->bat.external_power_changed = bq27x00_external_power_changed;
@@ -729,6 +853,7 @@ static int bq27x00_battery_remove(struct i2c_client *client)
static const struct i2c_device_id bq27x00_id[] = {
{ "bq27200", BQ27000 }, /* bq27200 is same as bq27000, but with i2c */
{ "bq27500", BQ27500 },
+ { "bq27425", BQ27425 },
{},
};
MODULE_DEVICE_TABLE(i2c, bq27x00_id);
diff --git a/drivers/power/charger-manager.c b/drivers/power/charger-manager.c
index 86935ec1895..526e5c93129 100644
--- a/drivers/power/charger-manager.c
+++ b/drivers/power/charger-manager.c
@@ -271,16 +271,13 @@ static int try_charger_enable(struct charger_manager *cm, bool enable)
if (enable) {
if (cm->emergency_stop)
return -EAGAIN;
- err = regulator_bulk_enable(desc->num_charger_regulators,
- desc->charger_regulators);
+ for (i = 0 ; i < desc->num_charger_regulators ; i++)
+ regulator_enable(desc->charger_regulators[i].consumer);
} else {
/*
* Abnormal battery state - Stop charging forcibly,
* even if charger was enabled at the other places
*/
- err = regulator_bulk_disable(desc->num_charger_regulators,
- desc->charger_regulators);
-
for (i = 0; i < desc->num_charger_regulators; i++) {
if (regulator_is_enabled(
desc->charger_regulators[i].consumer)) {
@@ -288,7 +285,7 @@ static int try_charger_enable(struct charger_manager *cm, bool enable)
desc->charger_regulators[i].consumer);
dev_warn(cm->dev,
"Disable regulator(%s) forcibly.\n",
- desc->charger_regulators[i].supply);
+ desc->charger_regulators[i].regulator_name);
}
}
}
@@ -994,11 +991,92 @@ int setup_charger_manager(struct charger_global_desc *gd)
}
EXPORT_SYMBOL_GPL(setup_charger_manager);
+/**
+ * charger_extcon_work - enable/diable charger according to the state
+ * of charger cable
+ *
+ * @work: work_struct of the function charger_extcon_work.
+ */
+static void charger_extcon_work(struct work_struct *work)
+{
+ struct charger_cable *cable =
+ container_of(work, struct charger_cable, wq);
+ int ret;
+
+ if (cable->attached && cable->min_uA != 0 && cable->max_uA != 0) {
+ ret = regulator_set_current_limit(cable->charger->consumer,
+ cable->min_uA, cable->max_uA);
+ if (ret < 0) {
+ pr_err("Cannot set current limit of %s (%s)\n",
+ cable->charger->regulator_name, cable->name);
+ return;
+ }
+
+ pr_info("Set current limit of %s : %duA ~ %duA\n",
+ cable->charger->regulator_name,
+ cable->min_uA, cable->max_uA);
+ }
+
+ try_charger_enable(cable->cm, cable->attached);
+}
+
+/**
+ * charger_extcon_notifier - receive the state of charger cable
+ * when registered cable is attached or detached.
+ *
+ * @self: the notifier block of the charger_extcon_notifier.
+ * @event: the cable state.
+ * @ptr: the data pointer of notifier block.
+ */
+static int charger_extcon_notifier(struct notifier_block *self,
+ unsigned long event, void *ptr)
+{
+ struct charger_cable *cable =
+ container_of(self, struct charger_cable, nb);
+
+ cable->attached = event;
+ schedule_work(&cable->wq);
+
+ return NOTIFY_DONE;
+}
+
+/**
+ * charger_extcon_init - register external connector to use it
+ * as the charger cable
+ *
+ * @cm: the Charger Manager representing the battery.
+ * @cable: the Charger cable representing the external connector.
+ */
+static int charger_extcon_init(struct charger_manager *cm,
+ struct charger_cable *cable)
+{
+ int ret = 0;
+
+ /*
+ * Charger manager use Extcon framework to identify
+ * the charger cable among various external connector
+ * cable (e.g., TA, USB, MHL, Dock).
+ */
+ INIT_WORK(&cable->wq, charger_extcon_work);
+ cable->nb.notifier_call = charger_extcon_notifier;
+ ret = extcon_register_interest(&cable->extcon_dev,
+ cable->extcon_name, cable->name, &cable->nb);
+ if (ret < 0) {
+ pr_info("Cannot register extcon_dev for %s(cable: %s).\n",
+ cable->extcon_name,
+ cable->name);
+ ret = -EINVAL;
+ }
+
+ return ret;
+}
+
static int charger_manager_probe(struct platform_device *pdev)
{
struct charger_desc *desc = dev_get_platdata(&pdev->dev);
struct charger_manager *cm;
int ret = 0, i = 0;
+ int j = 0;
union power_supply_propval val;
if (g_desc && !rtc_dev && g_desc->rtc_name) {
@@ -1167,11 +1245,31 @@ static int charger_manager_probe(struct platform_device *pdev)
goto err_register;
}
- ret = regulator_bulk_get(&pdev->dev, desc->num_charger_regulators,
- desc->charger_regulators);
- if (ret) {
- dev_err(&pdev->dev, "Cannot get charger regulators.\n");
- goto err_bulk_get;
+ for (i = 0 ; i < desc->num_charger_regulators ; i++) {
+ struct charger_regulator *charger
+ = &desc->charger_regulators[i];
+
+ charger->consumer = regulator_get(&pdev->dev,
+ charger->regulator_name);
+ if (charger->consumer == NULL) {
+ dev_err(&pdev->dev, "Cannot find charger(%s)n",
+ charger->regulator_name);
+ ret = -EINVAL;
+ goto err_chg_get;
+ }
+
+ for (j = 0 ; j < charger->num_cables ; j++) {
+ struct charger_cable *cable = &charger->cables[j];
+
+ ret = charger_extcon_init(cm, cable);
+ if (ret < 0) {
+ dev_err(&pdev->dev, "Cannot find charger(%s)n",
+ charger->regulator_name);
+ goto err_extcon;
+ }
+ cable->charger = charger;
+ cable->cm = cm;
+ }
}
ret = try_charger_enable(cm, true);
@@ -1197,9 +1295,19 @@ static int charger_manager_probe(struct platform_device *pdev)
return 0;
err_chg_enable:
- regulator_bulk_free(desc->num_charger_regulators,
- desc->charger_regulators);
-err_bulk_get:
+err_extcon:
+ for (i = 0 ; i < desc->num_charger_regulators ; i++) {
+ struct charger_regulator *charger
+ = &desc->charger_regulators[i];
+ for (j = 0 ; j < charger->num_cables ; j++) {
+ struct charger_cable *cable = &charger->cables[j];
+ extcon_unregister_interest(&cable->extcon_dev);
+ }
+ }
+err_chg_get:
+ for (i = 0 ; i < desc->num_charger_regulators ; i++)
+ regulator_put(desc->charger_regulators[i].consumer);
+
power_supply_unregister(&cm->charger_psy);
err_register:
kfree(cm->charger_psy.properties);
@@ -1218,6 +1326,8 @@ static int __devexit charger_manager_remove(struct platform_device *pdev)
{
struct charger_manager *cm = platform_get_drvdata(pdev);
struct charger_desc *desc = cm->desc;
+ int i = 0;
+ int j = 0;
/* Remove from the list */
mutex_lock(&cm_list_mtx);
@@ -1229,8 +1339,18 @@ static int __devexit charger_manager_remove(struct platform_device *pdev)
if (delayed_work_pending(&cm_monitor_work))
cancel_delayed_work_sync(&cm_monitor_work);
- regulator_bulk_free(desc->num_charger_regulators,
- desc->charger_regulators);
+ for (i = 0 ; i < desc->num_charger_regulators ; i++) {
+ struct charger_regulator *charger
+ = &desc->charger_regulators[i];
+ for (j = 0 ; j < charger->num_cables ; j++) {
+ struct charger_cable *cable = &charger->cables[j];
+ extcon_unregister_interest(&cable->extcon_dev);
+ }
+ }
+
+ for (i = 0 ; i < desc->num_charger_regulators ; i++)
+ regulator_put(desc->charger_regulators[i].consumer);
+
power_supply_unregister(&cm->charger_psy);
try_charger_enable(cm, false);
diff --git a/drivers/power/ds2780_battery.c b/drivers/power/ds2780_battery.c
index de31cae1ba5..74fad941c56 100644
--- a/drivers/power/ds2780_battery.c
+++ b/drivers/power/ds2780_battery.c
@@ -39,7 +39,6 @@ struct ds2780_device_info {
struct device *dev;
struct power_supply bat;
struct device *w1_dev;
- struct task_struct *mutex_holder;
};
enum current_types {
@@ -64,10 +63,7 @@ static inline struct power_supply *to_power_supply(struct device *dev)
static inline int ds2780_battery_io(struct ds2780_device_info *dev_info,
char *buf, int addr, size_t count, int io)
{
- if (dev_info->mutex_holder == current)
- return w1_ds2780_io_nolock(dev_info->w1_dev, buf, addr, count, io);
- else
- return w1_ds2780_io(dev_info->w1_dev, buf, addr, count, io);
+ return w1_ds2780_io(dev_info->w1_dev, buf, addr, count, io);
}
static inline int ds2780_read8(struct ds2780_device_info *dev_info, u8 *val,
@@ -779,7 +775,6 @@ static int __devinit ds2780_battery_probe(struct platform_device *pdev)
dev_info->bat.properties = ds2780_battery_props;
dev_info->bat.num_properties = ARRAY_SIZE(ds2780_battery_props);
dev_info->bat.get_property = ds2780_battery_get_property;
- dev_info->mutex_holder = current;
ret = power_supply_register(&pdev->dev, &dev_info->bat);
if (ret) {
@@ -809,8 +804,6 @@ static int __devinit ds2780_battery_probe(struct platform_device *pdev)
goto fail_remove_bin_file;
}
- dev_info->mutex_holder = NULL;
-
return 0;
fail_remove_bin_file:
@@ -830,8 +823,6 @@ static int __devexit ds2780_battery_remove(struct platform_device *pdev)
{
struct ds2780_device_info *dev_info = platform_get_drvdata(pdev);
- dev_info->mutex_holder = current;
-
/* remove attributes */
sysfs_remove_group(&dev_info->bat.dev->kobj, &ds2780_attr_group);
diff --git a/drivers/power/ds2781_battery.c b/drivers/power/ds2781_battery.c
index 975684a40f1..7a1ff4e4cf9 100644
--- a/drivers/power/ds2781_battery.c
+++ b/drivers/power/ds2781_battery.c
@@ -37,7 +37,6 @@ struct ds2781_device_info {
struct device *dev;
struct power_supply bat;
struct device *w1_dev;
- struct task_struct *mutex_holder;
};
enum current_types {
@@ -62,14 +61,10 @@ static inline struct power_supply *to_power_supply(struct device *dev)
static inline int ds2781_battery_io(struct ds2781_device_info *dev_info,
char *buf, int addr, size_t count, int io)
{
- if (dev_info->mutex_holder == current)
- return w1_ds2781_io_nolock(dev_info->w1_dev, buf, addr,
- count, io);
- else
- return w1_ds2781_io(dev_info->w1_dev, buf, addr, count, io);
+ return w1_ds2781_io(dev_info->w1_dev, buf, addr, count, io);
}
-int w1_ds2781_read(struct ds2781_device_info *dev_info, char *buf,
+static int w1_ds2781_read(struct ds2781_device_info *dev_info, char *buf,
int addr, size_t count)
{
return ds2781_battery_io(dev_info, buf, addr, count, 0);
@@ -775,7 +770,6 @@ static int __devinit ds2781_battery_probe(struct platform_device *pdev)
dev_info->bat.properties = ds2781_battery_props;
dev_info->bat.num_properties = ARRAY_SIZE(ds2781_battery_props);
dev_info->bat.get_property = ds2781_battery_get_property;
- dev_info->mutex_holder = current;
ret = power_supply_register(&pdev->dev, &dev_info->bat);
if (ret) {
@@ -805,8 +799,6 @@ static int __devinit ds2781_battery_probe(struct platform_device *pdev)
goto fail_remove_bin_file;
}
- dev_info->mutex_holder = NULL;
-
return 0;
fail_remove_bin_file:
@@ -826,8 +818,6 @@ static int __devexit ds2781_battery_remove(struct platform_device *pdev)
{
struct ds2781_device_info *dev_info = platform_get_drvdata(pdev);
- dev_info->mutex_holder = current;
-
/* remove attributes */
sysfs_remove_group(&dev_info->bat.dev->kobj, &ds2781_attr_group);
diff --git a/drivers/power/gpio-charger.c b/drivers/power/gpio-charger.c
index 8672c9177dd..cb2aa319568 100644
--- a/drivers/power/gpio-charger.c
+++ b/drivers/power/gpio-charger.c
@@ -54,7 +54,7 @@ static int gpio_charger_get_property(struct power_supply *psy,
switch (psp) {
case POWER_SUPPLY_PROP_ONLINE:
- val->intval = gpio_get_value(pdata->gpio);
+ val->intval = gpio_get_value_cansleep(pdata->gpio);
val->intval ^= pdata->gpio_active_low;
break;
default:
diff --git a/drivers/power/isp1704_charger.c b/drivers/power/isp1704_charger.c
index e5ccd297977..122911978da 100644
--- a/drivers/power/isp1704_charger.c
+++ b/drivers/power/isp1704_charger.c
@@ -415,8 +415,8 @@ static int __devinit isp1704_charger_probe(struct platform_device *pdev)
if (!isp)
return -ENOMEM;
- isp->phy = usb_get_transceiver();
- if (!isp->phy)
+ isp->phy = usb_get_phy(USB_PHY_TYPE_USB2);
+ if (IS_ERR_OR_NULL(isp->phy))
goto fail0;
isp->dev = &pdev->dev;
@@ -475,7 +475,7 @@ fail2:
power_supply_unregister(&isp->psy);
fail1:
isp1704_charger_set_power(isp, 0);
- usb_put_transceiver(isp->phy);
+ usb_put_phy(isp->phy);
fail0:
kfree(isp);
@@ -490,7 +490,7 @@ static int __devexit isp1704_charger_remove(struct platform_device *pdev)
usb_unregister_notifier(isp->phy, &isp->nb);
power_supply_unregister(&isp->psy);
- usb_put_transceiver(isp->phy);
+ usb_put_phy(isp->phy);
isp1704_charger_set_power(isp, 0);
kfree(isp);
diff --git a/drivers/power/lp8727_charger.c b/drivers/power/lp8727_charger.c
index d8b75780bfe..6a364f4798f 100644
--- a/drivers/power/lp8727_charger.c
+++ b/drivers/power/lp8727_charger.c
@@ -15,7 +15,7 @@
#include <linux/interrupt.h>
#include <linux/i2c.h>
#include <linux/power_supply.h>
-#include <linux/lp8727.h>
+#include <linux/platform_data/lp8727.h>
#define DEBOUNCE_MSEC 270
diff --git a/drivers/power/max17042_battery.c b/drivers/power/max17042_battery.c
index 140788b309f..74abc6c755b 100644
--- a/drivers/power/max17042_battery.c
+++ b/drivers/power/max17042_battery.c
@@ -113,6 +113,7 @@ static enum power_supply_property max17042_battery_props[] = {
POWER_SUPPLY_PROP_VOLTAGE_OCV,
POWER_SUPPLY_PROP_CAPACITY,
POWER_SUPPLY_PROP_CHARGE_FULL,
+ POWER_SUPPLY_PROP_CHARGE_COUNTER,
POWER_SUPPLY_PROP_TEMP,
POWER_SUPPLY_PROP_CURRENT_NOW,
POWER_SUPPLY_PROP_CURRENT_AVG,
@@ -201,6 +202,13 @@ static int max17042_get_property(struct power_supply *psy,
val->intval = ret * 1000 / 2;
break;
+ case POWER_SUPPLY_PROP_CHARGE_COUNTER:
+ ret = max17042_read_reg(chip->client, MAX17042_QH);
+ if (ret < 0)
+ return ret;
+
+ val->intval = ret * 1000 / 2;
+ break;
case POWER_SUPPLY_PROP_TEMP:
ret = max17042_read_reg(chip->client, MAX17042_TEMP);
if (ret < 0)
diff --git a/drivers/power/olpc_battery.c b/drivers/power/olpc_battery.c
index 7385092f9bc..a89a41acf9c 100644
--- a/drivers/power/olpc_battery.c
+++ b/drivers/power/olpc_battery.c
@@ -17,6 +17,7 @@
#include <linux/power_supply.h>
#include <linux/jiffies.h>
#include <linux/sched.h>
+#include <linux/olpc-ec.h>
#include <asm/olpc.h>
@@ -231,11 +232,9 @@ static int olpc_bat_get_charge_full_design(union power_supply_propval *val)
case POWER_SUPPLY_TECHNOLOGY_LiFe:
switch (mfr) {
- case 1: /* Gold Peak */
- val->intval = 2800000;
- break;
+ case 1: /* Gold Peak, fall through */
case 2: /* BYD */
- val->intval = 3100000;
+ val->intval = 2800000;
break;
default:
return -EIO;
@@ -267,6 +266,55 @@ static int olpc_bat_get_charge_now(union power_supply_propval *val)
return 0;
}
+static int olpc_bat_get_voltage_max_design(union power_supply_propval *val)
+{
+ uint8_t ec_byte;
+ union power_supply_propval tech;
+ int mfr;
+ int ret;
+
+ ret = olpc_bat_get_tech(&tech);
+ if (ret)
+ return ret;
+
+ ec_byte = BAT_ADDR_MFR_TYPE;
+ ret = olpc_ec_cmd(EC_BAT_EEPROM, &ec_byte, 1, &ec_byte, 1);
+ if (ret)
+ return ret;
+
+ mfr = ec_byte >> 4;
+
+ switch (tech.intval) {
+ case POWER_SUPPLY_TECHNOLOGY_NiMH:
+ switch (mfr) {
+ case 1: /* Gold Peak */
+ val->intval = 6000000;
+ break;
+ default:
+ return -EIO;
+ }
+ break;
+
+ case POWER_SUPPLY_TECHNOLOGY_LiFe:
+ switch (mfr) {
+ case 1: /* Gold Peak */
+ val->intval = 6400000;
+ break;
+ case 2: /* BYD */
+ val->intval = 6500000;
+ break;
+ default:
+ return -EIO;
+ }
+ break;
+
+ default:
+ return -EIO;
+ }
+
+ return ret;
+}
+
/*********************************************************************
* Battery properties
*********************************************************************/
@@ -401,6 +449,11 @@ static int olpc_bat_get_property(struct power_supply *psy,
sprintf(bat_serial, "%016llx", (long long)be64_to_cpu(ser_buf));
val->strval = bat_serial;
break;
+ case POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN:
+ ret = olpc_bat_get_voltage_max_design(val);
+ if (ret)
+ return ret;
+ break;
default:
ret = -EINVAL;
break;
@@ -428,6 +481,7 @@ static enum power_supply_property olpc_xo1_bat_props[] = {
POWER_SUPPLY_PROP_MANUFACTURER,
POWER_SUPPLY_PROP_SERIAL_NUMBER,
POWER_SUPPLY_PROP_CHARGE_COUNTER,
+ POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN,
};
/* XO-1.5 does not have ambient temperature property */
@@ -449,6 +503,7 @@ static enum power_supply_property olpc_xo15_bat_props[] = {
POWER_SUPPLY_PROP_MANUFACTURER,
POWER_SUPPLY_PROP_SERIAL_NUMBER,
POWER_SUPPLY_PROP_CHARGE_COUNTER,
+ POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN,
};
/* EEPROM reading goes completely around the power_supply API, sadly */
diff --git a/drivers/power/pda_power.c b/drivers/power/pda_power.c
index 214468f4444..7312f265164 100644
--- a/drivers/power/pda_power.c
+++ b/drivers/power/pda_power.c
@@ -24,11 +24,7 @@
static inline unsigned int get_irq_flags(struct resource *res)
{
- unsigned int flags = IRQF_SAMPLE_RANDOM | IRQF_SHARED;
-
- flags |= res->flags & IRQF_TRIGGER_MASK;
-
- return flags;
+ return IRQF_SHARED | (res->flags & IRQF_TRIGGER_MASK);
}
static struct device *dev;
@@ -134,13 +130,13 @@ static void update_charger(void)
regulator_set_current_limit(ac_draw, max_uA, max_uA);
if (!regulator_enabled) {
dev_dbg(dev, "charger on (AC)\n");
- regulator_enable(ac_draw);
+ WARN_ON(regulator_enable(ac_draw));
regulator_enabled = 1;
}
} else {
if (regulator_enabled) {
dev_dbg(dev, "charger off\n");
- regulator_disable(ac_draw);
+ WARN_ON(regulator_disable(ac_draw));
regulator_enabled = 0;
}
}
@@ -321,12 +317,12 @@ static int pda_power_probe(struct platform_device *pdev)
}
#ifdef CONFIG_USB_OTG_UTILS
- transceiver = usb_get_transceiver();
- if (transceiver && !pdata->is_usb_online) {
- pdata->is_usb_online = otg_is_usb_online;
- }
- if (transceiver && !pdata->is_ac_online) {
- pdata->is_ac_online = otg_is_ac_online;
+ transceiver = usb_get_phy(USB_PHY_TYPE_USB2);
+ if (!IS_ERR_OR_NULL(transceiver)) {
+ if (!pdata->is_usb_online)
+ pdata->is_usb_online = otg_is_usb_online;
+ if (!pdata->is_ac_online)
+ pdata->is_ac_online = otg_is_ac_online;
}
#endif
@@ -373,7 +369,7 @@ static int pda_power_probe(struct platform_device *pdev)
}
#ifdef CONFIG_USB_OTG_UTILS
- if (transceiver && pdata->use_otg_notifier) {
+ if (!IS_ERR_OR_NULL(transceiver) && pdata->use_otg_notifier) {
otg_nb.notifier_call = otg_handle_notification;
ret = usb_register_notifier(transceiver, &otg_nb);
if (ret) {
@@ -408,8 +404,8 @@ usb_supply_failed:
if (pdata->is_ac_online && ac_irq)
free_irq(ac_irq->start, &pda_psy_ac);
#ifdef CONFIG_USB_OTG_UTILS
- if (transceiver)
- usb_put_transceiver(transceiver);
+ if (!IS_ERR_OR_NULL(transceiver))
+ usb_put_phy(transceiver);
#endif
ac_irq_failed:
if (pdata->is_ac_online)
@@ -443,8 +439,8 @@ static int pda_power_remove(struct platform_device *pdev)
if (pdata->is_ac_online)
power_supply_unregister(&pda_psy_ac);
#ifdef CONFIG_USB_OTG_UTILS
- if (transceiver)
- usb_put_transceiver(transceiver);
+ if (!IS_ERR_OR_NULL(transceiver))
+ usb_put_phy(transceiver);
#endif
if (ac_draw) {
regulator_put(ac_draw);
diff --git a/drivers/power/power_supply_core.c b/drivers/power/power_supply_core.c
index 6ad61272678..08cc8a3c15a 100644
--- a/drivers/power/power_supply_core.c
+++ b/drivers/power/power_supply_core.c
@@ -17,6 +17,7 @@
#include <linux/device.h>
#include <linux/err.h>
#include <linux/power_supply.h>
+#include <linux/thermal.h>
#include "power_supply.h"
/* exported for the APM Power driver, APM emulation */
@@ -169,6 +170,63 @@ static void power_supply_dev_release(struct device *dev)
kfree(dev);
}
+#ifdef CONFIG_THERMAL
+static int power_supply_read_temp(struct thermal_zone_device *tzd,
+ unsigned long *temp)
+{
+ struct power_supply *psy;
+ union power_supply_propval val;
+ int ret;
+
+ WARN_ON(tzd == NULL);
+ psy = tzd->devdata;
+ ret = psy->get_property(psy, POWER_SUPPLY_PROP_TEMP, &val);
+
+ /* Convert tenths of degree Celsius to milli degree Celsius. */
+ if (!ret)
+ *temp = val.intval * 100;
+
+ return ret;
+}
+
+static struct thermal_zone_device_ops psy_tzd_ops = {
+ .get_temp = power_supply_read_temp,
+};
+
+static int psy_register_thermal(struct power_supply *psy)
+{
+ int i;
+
+ /* Register battery zone device psy reports temperature */
+ for (i = 0; i < psy->num_properties; i++) {
+ if (psy->properties[i] == POWER_SUPPLY_PROP_TEMP) {
+ psy->tzd = thermal_zone_device_register(psy->name, 0, 0,
+ psy, &psy_tzd_ops, 0, 0, 0, 0);
+ if (IS_ERR(psy->tzd))
+ return PTR_ERR(psy->tzd);
+ break;
+ }
+ }
+ return 0;
+}
+
+static void psy_unregister_thermal(struct power_supply *psy)
+{
+ if (IS_ERR_OR_NULL(psy->tzd))
+ return;
+ thermal_zone_device_unregister(psy->tzd);
+}
+#else
+static int psy_register_thermal(struct power_supply *psy)
+{
+ return 0;
+}
+
+static void psy_unregister_thermal(struct power_supply *psy)
+{
+}
+#endif
+
int power_supply_register(struct device *parent, struct power_supply *psy)
{
struct device *dev;
@@ -197,6 +255,10 @@ int power_supply_register(struct device *parent, struct power_supply *psy)
if (rc)
goto device_add_failed;
+ rc = psy_register_thermal(psy);
+ if (rc)
+ goto register_thermal_failed;
+
rc = power_supply_create_triggers(psy);
if (rc)
goto create_triggers_failed;
@@ -206,6 +268,8 @@ int power_supply_register(struct device *parent, struct power_supply *psy)
goto success;
create_triggers_failed:
+ psy_unregister_thermal(psy);
+register_thermal_failed:
device_del(dev);
kobject_set_name_failed:
device_add_failed:
@@ -220,6 +284,7 @@ void power_supply_unregister(struct power_supply *psy)
cancel_work_sync(&psy->changed_work);
sysfs_remove_link(&psy->dev->kobj, "powers");
power_supply_remove_triggers(psy);
+ psy_unregister_thermal(psy);
device_unregister(psy->dev);
}
EXPORT_SYMBOL_GPL(power_supply_unregister);
diff --git a/drivers/power/power_supply_sysfs.c b/drivers/power/power_supply_sysfs.c
index 4150747f918..1d96614a17a 100644
--- a/drivers/power/power_supply_sysfs.c
+++ b/drivers/power/power_supply_sysfs.c
@@ -159,6 +159,8 @@ static struct device_attribute power_supply_attrs[] = {
POWER_SUPPLY_ATTR(charge_now),
POWER_SUPPLY_ATTR(charge_avg),
POWER_SUPPLY_ATTR(charge_counter),
+ POWER_SUPPLY_ATTR(constant_charge_current),
+ POWER_SUPPLY_ATTR(constant_charge_voltage),
POWER_SUPPLY_ATTR(energy_full_design),
POWER_SUPPLY_ATTR(energy_empty_design),
POWER_SUPPLY_ATTR(energy_full),
@@ -166,9 +168,15 @@ static struct device_attribute power_supply_attrs[] = {
POWER_SUPPLY_ATTR(energy_now),
POWER_SUPPLY_ATTR(energy_avg),
POWER_SUPPLY_ATTR(capacity),
+ POWER_SUPPLY_ATTR(capacity_alert_min),
+ POWER_SUPPLY_ATTR(capacity_alert_max),
POWER_SUPPLY_ATTR(capacity_level),
POWER_SUPPLY_ATTR(temp),
+ POWER_SUPPLY_ATTR(temp_alert_min),
+ POWER_SUPPLY_ATTR(temp_alert_max),
POWER_SUPPLY_ATTR(temp_ambient),
+ POWER_SUPPLY_ATTR(temp_ambient_alert_min),
+ POWER_SUPPLY_ATTR(temp_ambient_alert_max),
POWER_SUPPLY_ATTR(time_to_empty_now),
POWER_SUPPLY_ATTR(time_to_empty_avg),
POWER_SUPPLY_ATTR(time_to_full_now),
diff --git a/drivers/power/sbs-battery.c b/drivers/power/sbs-battery.c
index a5b6849d412..a65e8f54157 100644
--- a/drivers/power/sbs-battery.c
+++ b/drivers/power/sbs-battery.c
@@ -469,7 +469,7 @@ static int sbs_get_property(struct power_supply *psy,
case POWER_SUPPLY_PROP_TECHNOLOGY:
val->intval = POWER_SUPPLY_TECHNOLOGY_LION;
- break;
+ goto done; /* don't trigger power_supply_changed()! */
case POWER_SUPPLY_PROP_ENERGY_NOW:
case POWER_SUPPLY_PROP_ENERGY_FULL:
diff --git a/drivers/power/smb347-charger.c b/drivers/power/smb347-charger.c
index f8eedd8a676..332dd0110bd 100644
--- a/drivers/power/smb347-charger.c
+++ b/drivers/power/smb347-charger.c
@@ -196,6 +196,14 @@ static const unsigned int ccc_tbl[] = {
1200000,
};
+/* Convert register value to current using lookup table */
+static int hw_to_current(const unsigned int *tbl, size_t size, unsigned int val)
+{
+ if (val >= size)
+ return -EINVAL;
+ return tbl[val];
+}
+
/* Convert current to register value using lookup table */
static int current_to_hw(const unsigned int *tbl, size_t size, unsigned int val)
{
@@ -841,22 +849,101 @@ fail:
return ret;
}
+/*
+ * Returns the constant charge current programmed
+ * into the charger in uA.
+ */
+static int get_const_charge_current(struct smb347_charger *smb)
+{
+ int ret, intval;
+ unsigned int v;
+
+ if (!smb347_is_ps_online(smb))
+ return -ENODATA;
+
+ ret = regmap_read(smb->regmap, STAT_B, &v);
+ if (ret < 0)
+ return ret;
+
+ /*
+ * The current value is composition of FCC and PCC values
+ * and we can detect which table to use from bit 5.
+ */
+ if (v & 0x20) {
+ intval = hw_to_current(fcc_tbl, ARRAY_SIZE(fcc_tbl), v & 7);
+ } else {
+ v >>= 3;
+ intval = hw_to_current(pcc_tbl, ARRAY_SIZE(pcc_tbl), v & 7);
+ }
+
+ return intval;
+}
+
+/*
+ * Returns the constant charge voltage programmed
+ * into the charger in uV.
+ */
+static int get_const_charge_voltage(struct smb347_charger *smb)
+{
+ int ret, intval;
+ unsigned int v;
+
+ if (!smb347_is_ps_online(smb))
+ return -ENODATA;
+
+ ret = regmap_read(smb->regmap, STAT_A, &v);
+ if (ret < 0)
+ return ret;
+
+ v &= STAT_A_FLOAT_VOLTAGE_MASK;
+ if (v > 0x3d)
+ v = 0x3d;
+
+ intval = 3500000 + v * 20000;
+
+ return intval;
+}
+
static int smb347_mains_get_property(struct power_supply *psy,
enum power_supply_property prop,
union power_supply_propval *val)
{
struct smb347_charger *smb =
container_of(psy, struct smb347_charger, mains);
+ int ret;
- if (prop == POWER_SUPPLY_PROP_ONLINE) {
+ switch (prop) {
+ case POWER_SUPPLY_PROP_ONLINE:
val->intval = smb->mains_online;
- return 0;
+ break;
+
+ case POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE:
+ ret = get_const_charge_voltage(smb);
+ if (ret < 0)
+ return ret;
+ else
+ val->intval = ret;
+ break;
+
+ case POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT:
+ ret = get_const_charge_current(smb);
+ if (ret < 0)
+ return ret;
+ else
+ val->intval = ret;
+ break;
+
+ default:
+ return -EINVAL;
}
- return -EINVAL;
+
+ return 0;
}
static enum power_supply_property smb347_mains_properties[] = {
POWER_SUPPLY_PROP_ONLINE,
+ POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT,
+ POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE,
};
static int smb347_usb_get_property(struct power_supply *psy,
@@ -865,16 +952,40 @@ static int smb347_usb_get_property(struct power_supply *psy,
{
struct smb347_charger *smb =
container_of(psy, struct smb347_charger, usb);
+ int ret;
- if (prop == POWER_SUPPLY_PROP_ONLINE) {
+ switch (prop) {
+ case POWER_SUPPLY_PROP_ONLINE:
val->intval = smb->usb_online;
- return 0;
+ break;
+
+ case POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE:
+ ret = get_const_charge_voltage(smb);
+ if (ret < 0)
+ return ret;
+ else
+ val->intval = ret;
+ break;
+
+ case POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT:
+ ret = get_const_charge_current(smb);
+ if (ret < 0)
+ return ret;
+ else
+ val->intval = ret;
+ break;
+
+ default:
+ return -EINVAL;
}
- return -EINVAL;
+
+ return 0;
}
static enum power_supply_property smb347_usb_properties[] = {
POWER_SUPPLY_PROP_ONLINE,
+ POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT,
+ POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE,
};
static int smb347_battery_get_property(struct power_supply *psy,
diff --git a/drivers/power/test_power.c b/drivers/power/test_power.c
index b527c93bf2f..b99a452a4fd 100644
--- a/drivers/power/test_power.c
+++ b/drivers/power/test_power.c
@@ -22,11 +22,13 @@
#include <linux/vermagic.h>
static int ac_online = 1;
+static int usb_online = 1;
static int battery_status = POWER_SUPPLY_STATUS_DISCHARGING;
static int battery_health = POWER_SUPPLY_HEALTH_GOOD;
static int battery_present = 1; /* true */
static int battery_technology = POWER_SUPPLY_TECHNOLOGY_LION;
static int battery_capacity = 50;
+static int battery_voltage = 3300;
static int test_power_get_ac_property(struct power_supply *psy,
enum power_supply_property psp,
@@ -42,6 +44,20 @@ static int test_power_get_ac_property(struct power_supply *psy,
return 0;
}
+static int test_power_get_usb_property(struct power_supply *psy,
+ enum power_supply_property psp,
+ union power_supply_propval *val)
+{
+ switch (psp) {
+ case POWER_SUPPLY_PROP_ONLINE:
+ val->intval = usb_online;
+ break;
+ default:
+ return -EINVAL;
+ }
+ return 0;
+}
+
static int test_power_get_battery_property(struct power_supply *psy,
enum power_supply_property psp,
union power_supply_propval *val)
@@ -86,6 +102,12 @@ static int test_power_get_battery_property(struct power_supply *psy,
case POWER_SUPPLY_PROP_TIME_TO_FULL_NOW:
val->intval = 3600;
break;
+ case POWER_SUPPLY_PROP_TEMP:
+ val->intval = 26;
+ break;
+ case POWER_SUPPLY_PROP_VOLTAGE_NOW:
+ val->intval = battery_voltage;
+ break;
default:
pr_info("%s: some properties deliberately report errors.\n",
__func__);
@@ -114,6 +136,8 @@ static enum power_supply_property test_power_battery_props[] = {
POWER_SUPPLY_PROP_MODEL_NAME,
POWER_SUPPLY_PROP_MANUFACTURER,
POWER_SUPPLY_PROP_SERIAL_NUMBER,
+ POWER_SUPPLY_PROP_TEMP,
+ POWER_SUPPLY_PROP_VOLTAGE_NOW,
};
static char *test_power_ac_supplied_to[] = {
@@ -135,6 +159,14 @@ static struct power_supply test_power_supplies[] = {
.properties = test_power_battery_props,
.num_properties = ARRAY_SIZE(test_power_battery_props),
.get_property = test_power_get_battery_property,
+ }, {
+ .name = "test_usb",
+ .type = POWER_SUPPLY_TYPE_USB,
+ .supplied_to = test_power_ac_supplied_to,
+ .num_supplicants = ARRAY_SIZE(test_power_ac_supplied_to),
+ .properties = test_power_ac_props,
+ .num_properties = ARRAY_SIZE(test_power_ac_props),
+ .get_property = test_power_get_usb_property,
},
};
@@ -167,6 +199,7 @@ static void __exit test_power_exit(void)
/* Let's see how we handle changes... */
ac_online = 0;
+ usb_online = 0;
battery_status = POWER_SUPPLY_STATUS_DISCHARGING;
for (i = 0; i < ARRAY_SIZE(test_power_supplies); i++)
power_supply_changed(&test_power_supplies[i]);
@@ -275,6 +308,19 @@ static int param_get_ac_online(char *buffer, const struct kernel_param *kp)
return strlen(buffer);
}
+static int param_set_usb_online(const char *key, const struct kernel_param *kp)
+{
+ usb_online = map_get_value(map_ac_online, key, usb_online);
+ power_supply_changed(&test_power_supplies[2]);
+ return 0;
+}
+
+static int param_get_usb_online(char *buffer, const struct kernel_param *kp)
+{
+ strcpy(buffer, map_get_key(map_ac_online, usb_online, "unknown"));
+ return strlen(buffer);
+}
+
static int param_set_battery_status(const char *key,
const struct kernel_param *kp)
{
@@ -350,13 +396,31 @@ static int param_set_battery_capacity(const char *key,
#define param_get_battery_capacity param_get_int
+static int param_set_battery_voltage(const char *key,
+ const struct kernel_param *kp)
+{
+ int tmp;
+
+ if (1 != sscanf(key, "%d", &tmp))
+ return -EINVAL;
+
+ battery_voltage = tmp;
+ power_supply_changed(&test_power_supplies[1]);
+ return 0;
+}
+#define param_get_battery_voltage param_get_int
static struct kernel_param_ops param_ops_ac_online = {
.set = param_set_ac_online,
.get = param_get_ac_online,
};
+static struct kernel_param_ops param_ops_usb_online = {
+ .set = param_set_usb_online,
+ .get = param_get_usb_online,
+};
+
static struct kernel_param_ops param_ops_battery_status = {
.set = param_set_battery_status,
.get = param_get_battery_status,
@@ -382,18 +446,27 @@ static struct kernel_param_ops param_ops_battery_capacity = {
.get = param_get_battery_capacity,
};
+static struct kernel_param_ops param_ops_battery_voltage = {
+ .set = param_set_battery_voltage,
+ .get = param_get_battery_voltage,
+};
#define param_check_ac_online(name, p) __param_check(name, p, void);
+#define param_check_usb_online(name, p) __param_check(name, p, void);
#define param_check_battery_status(name, p) __param_check(name, p, void);
#define param_check_battery_present(name, p) __param_check(name, p, void);
#define param_check_battery_technology(name, p) __param_check(name, p, void);
#define param_check_battery_health(name, p) __param_check(name, p, void);
#define param_check_battery_capacity(name, p) __param_check(name, p, void);
+#define param_check_battery_voltage(name, p) __param_check(name, p, void);
module_param(ac_online, ac_online, 0644);
MODULE_PARM_DESC(ac_online, "AC charging state <on|off>");
+module_param(usb_online, usb_online, 0644);
+MODULE_PARM_DESC(usb_online, "USB charging state <on|off>");
+
module_param(battery_status, battery_status, 0644);
MODULE_PARM_DESC(battery_status,
"battery status <charging|discharging|not-charging|full>");
@@ -413,6 +486,8 @@ MODULE_PARM_DESC(battery_health,
module_param(battery_capacity, battery_capacity, 0644);
MODULE_PARM_DESC(battery_capacity, "battery capacity (percentage)");
+module_param(battery_voltage, battery_voltage, 0644);
+MODULE_PARM_DESC(battery_voltage, "battery voltage (millivolts)");
MODULE_DESCRIPTION("Power supply driver for testing");
MODULE_AUTHOR("Anton Vorontsov <cbouatmailru@gmail.com>");
diff --git a/drivers/power/twl4030_charger.c b/drivers/power/twl4030_charger.c
index fdad850c77d..15f4d5d8611 100644
--- a/drivers/power/twl4030_charger.c
+++ b/drivers/power/twl4030_charger.c
@@ -15,12 +15,14 @@
#include <linux/init.h>
#include <linux/module.h>
#include <linux/slab.h>
+#include <linux/err.h>
#include <linux/platform_device.h>
#include <linux/interrupt.h>
#include <linux/i2c/twl.h>
#include <linux/power_supply.h>
#include <linux/notifier.h>
#include <linux/usb/otg.h>
+#include <linux/regulator/machine.h>
#define TWL4030_BCIMSTATEC 0x02
#define TWL4030_BCIICHG 0x08
@@ -28,6 +30,7 @@
#define TWL4030_BCIVBUS 0x0c
#define TWL4030_BCIMFSTS4 0x10
#define TWL4030_BCICTL1 0x23
+#define TWL4030_BB_CFG 0x12
#define TWL4030_BCIAUTOWEN BIT(5)
#define TWL4030_CONFIG_DONE BIT(4)
@@ -37,6 +40,17 @@
#define TWL4030_USBFASTMCHG BIT(2)
#define TWL4030_STS_VBUS BIT(7)
#define TWL4030_STS_USB_ID BIT(2)
+#define TWL4030_BBCHEN BIT(4)
+#define TWL4030_BBSEL_MASK 0b1100
+#define TWL4030_BBSEL_2V5 0b0000
+#define TWL4030_BBSEL_3V0 0b0100
+#define TWL4030_BBSEL_3V1 0b1000
+#define TWL4030_BBSEL_3V2 0b1100
+#define TWL4030_BBISEL_MASK 0b11
+#define TWL4030_BBISEL_25uA 0b00
+#define TWL4030_BBISEL_150uA 0b01
+#define TWL4030_BBISEL_500uA 0b10
+#define TWL4030_BBISEL_1000uA 0b11
/* BCI interrupts */
#define TWL4030_WOVF BIT(0) /* Watchdog overflow */
@@ -74,6 +88,8 @@ struct twl4030_bci {
struct work_struct work;
int irq_chg;
int irq_bci;
+ struct regulator *usb_reg;
+ int usb_enabled;
unsigned long event;
};
@@ -103,7 +119,7 @@ static int twl4030_bci_read(u8 reg, u8 *val)
static int twl4030_clear_set_boot_bci(u8 clear, u8 set)
{
- return twl4030_clear_set(TWL4030_MODULE_PM_MASTER, 0,
+ return twl4030_clear_set(TWL4030_MODULE_PM_MASTER, clear,
TWL4030_CONFIG_DONE | TWL4030_BCIAUTOWEN | set,
TWL4030_PM_MASTER_BOOT_BCI);
}
@@ -151,14 +167,14 @@ static int twl4030_bci_have_vbus(struct twl4030_bci *bci)
}
/*
- * Enable/Disable USB Charge funtionality.
+ * Enable/Disable USB Charge functionality.
*/
static int twl4030_charger_enable_usb(struct twl4030_bci *bci, bool enable)
{
int ret;
if (enable) {
- /* Check for USB charger conneted */
+ /* Check for USB charger connected */
if (!twl4030_bci_have_vbus(bci))
return -ENODEV;
@@ -171,6 +187,12 @@ static int twl4030_charger_enable_usb(struct twl4030_bci *bci, bool enable)
return -EACCES;
}
+ /* Need to keep regulator on */
+ if (!bci->usb_enabled) {
+ regulator_enable(bci->usb_reg);
+ bci->usb_enabled = 1;
+ }
+
/* forcing the field BCIAUTOUSB (BOOT_BCI[1]) to 1 */
ret = twl4030_clear_set_boot_bci(0, TWL4030_BCIAUTOUSB);
if (ret < 0)
@@ -181,6 +203,10 @@ static int twl4030_charger_enable_usb(struct twl4030_bci *bci, bool enable)
TWL4030_USBFASTMCHG, TWL4030_BCIMFSTS4);
} else {
ret = twl4030_clear_set_boot_bci(TWL4030_BCIAUTOUSB, 0);
+ if (bci->usb_enabled) {
+ regulator_disable(bci->usb_reg);
+ bci->usb_enabled = 0;
+ }
}
return ret;
@@ -202,6 +228,49 @@ static int twl4030_charger_enable_ac(bool enable)
}
/*
+ * Enable/Disable charging of Backup Battery.
+ */
+static int twl4030_charger_enable_backup(int uvolt, int uamp)
+{
+ int ret;
+ u8 flags;
+
+ if (uvolt < 2500000 ||
+ uamp < 25) {
+ /* disable charging of backup battery */
+ ret = twl4030_clear_set(TWL4030_MODULE_PM_RECEIVER,
+ TWL4030_BBCHEN, 0, TWL4030_BB_CFG);
+ return ret;
+ }
+
+ flags = TWL4030_BBCHEN;
+ if (uvolt >= 3200000)
+ flags |= TWL4030_BBSEL_3V2;
+ else if (uvolt >= 3100000)
+ flags |= TWL4030_BBSEL_3V1;
+ else if (uvolt >= 3000000)
+ flags |= TWL4030_BBSEL_3V0;
+ else
+ flags |= TWL4030_BBSEL_2V5;
+
+ if (uamp >= 1000)
+ flags |= TWL4030_BBISEL_1000uA;
+ else if (uamp >= 500)
+ flags |= TWL4030_BBISEL_500uA;
+ else if (uamp >= 150)
+ flags |= TWL4030_BBISEL_150uA;
+ else
+ flags |= TWL4030_BBISEL_25uA;
+
+ ret = twl4030_clear_set(TWL4030_MODULE_PM_RECEIVER,
+ TWL4030_BBSEL_MASK | TWL4030_BBISEL_MASK,
+ flags,
+ TWL4030_BB_CFG);
+
+ return ret;
+}
+
+/*
* TWL4030 CHG_PRES (AC charger presence) events
*/
static irqreturn_t twl4030_charger_interrupt(int irq, void *arg)
@@ -424,6 +493,7 @@ static enum power_supply_property twl4030_charger_props[] = {
static int __init twl4030_bci_probe(struct platform_device *pdev)
{
struct twl4030_bci *bci;
+ struct twl4030_bci_platform_data *pdata = pdev->dev.platform_data;
int ret;
u32 reg;
@@ -455,6 +525,8 @@ static int __init twl4030_bci_probe(struct platform_device *pdev)
bci->usb.num_properties = ARRAY_SIZE(twl4030_charger_props);
bci->usb.get_property = twl4030_bci_get_property;
+ bci->usb_reg = regulator_get(bci->dev, "bci3v1");
+
ret = power_supply_register(&pdev->dev, &bci->usb);
if (ret) {
dev_err(&pdev->dev, "failed to register usb: %d\n", ret);
@@ -479,8 +551,8 @@ static int __init twl4030_bci_probe(struct platform_device *pdev)
INIT_WORK(&bci->work, twl4030_bci_usb_work);
- bci->transceiver = usb_get_transceiver();
- if (bci->transceiver != NULL) {
+ bci->transceiver = usb_get_phy(USB_PHY_TYPE_USB2);
+ if (!IS_ERR_OR_NULL(bci->transceiver)) {
bci->usb_nb.notifier_call = twl4030_bci_usb_ncb;
usb_register_notifier(bci->transceiver, &bci->usb_nb);
}
@@ -503,13 +575,15 @@ static int __init twl4030_bci_probe(struct platform_device *pdev)
twl4030_charger_enable_ac(true);
twl4030_charger_enable_usb(bci, true);
+ twl4030_charger_enable_backup(pdata->bb_uvolt,
+ pdata->bb_uamp);
return 0;
fail_unmask_interrupts:
- if (bci->transceiver != NULL) {
+ if (!IS_ERR_OR_NULL(bci->transceiver)) {
usb_unregister_notifier(bci->transceiver, &bci->usb_nb);
- usb_put_transceiver(bci->transceiver);
+ usb_put_phy(bci->transceiver);
}
free_irq(bci->irq_bci, bci);
fail_bci_irq:
@@ -531,6 +605,7 @@ static int __exit twl4030_bci_remove(struct platform_device *pdev)
twl4030_charger_enable_ac(false);
twl4030_charger_enable_usb(bci, false);
+ twl4030_charger_enable_backup(0, 0);
/* mask interrupts */
twl_i2c_write_u8(TWL4030_MODULE_INTERRUPTS, 0xff,
@@ -538,9 +613,9 @@ static int __exit twl4030_bci_remove(struct platform_device *pdev)
twl_i2c_write_u8(TWL4030_MODULE_INTERRUPTS, 0xff,
TWL4030_INTERRUPTS_BCIIMR2A);
- if (bci->transceiver != NULL) {
+ if (!IS_ERR_OR_NULL(bci->transceiver)) {
usb_unregister_notifier(bci->transceiver, &bci->usb_nb);
- usb_put_transceiver(bci->transceiver);
+ usb_put_phy(bci->transceiver);
}
free_irq(bci->irq_bci, bci);
free_irq(bci->irq_chg, bci);
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-12-14 00:16:58 +0000