summaryrefslogtreecommitdiffstats
path: root/drivers/mfd
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/mfd')
-rw-r--r--drivers/mfd/twl-core.c33
-rw-r--r--drivers/mfd/twl4030-irq.c19
-rw-r--r--drivers/mfd/twl6030-irq.c39
3 files changed, 46 insertions, 45 deletions
diff --git a/drivers/mfd/twl-core.c b/drivers/mfd/twl-core.c
index 764c5b5d914..eb9bd203e49 100644
--- a/drivers/mfd/twl-core.c
+++ b/drivers/mfd/twl-core.c
@@ -1178,17 +1178,15 @@ static int twl_remove(struct i2c_client *client)
return 0;
}
-/* NOTE: this driver only handles a single twl4030/tps659x0 chip */
+/* NOTE: This driver only handles a single twl4030/tps659x0 chip */
static int __devinit
twl_probe(struct i2c_client *client, const struct i2c_device_id *id)
{
- int irq_base;
- int status;
- unsigned i;
struct twl4030_platform_data *pdata = client->dev.platform_data;
struct device_node *node = client->dev.of_node;
- u8 temp;
- int ret = 0;
+ int irq_base = 0;
+ int status;
+ unsigned i;
if (node && !pdata) {
/*
@@ -1218,12 +1216,12 @@ twl_probe(struct i2c_client *client, const struct i2c_device_id *id)
}
for (i = 0; i < TWL_NUM_SLAVES; i++) {
- struct twl_client *twl = &twl_modules[i];
+ struct twl_client *twl = &twl_modules[i];
twl->address = client->addr + i;
- if (i == 0)
+ if (i == 0) {
twl->client = client;
- else {
+ } else {
twl->client = i2c_new_dummy(client->adapter,
twl->address);
if (!twl->client) {
@@ -1235,7 +1233,9 @@ twl_probe(struct i2c_client *client, const struct i2c_device_id *id)
}
mutex_init(&twl->xfer_lock);
}
+
inuse = true;
+
if ((id->driver_data) & TWL6030_CLASS) {
twl_id = TWL6030_CLASS_ID;
twl_map = &twl6030_map[0];
@@ -1249,8 +1249,8 @@ twl_probe(struct i2c_client *client, const struct i2c_device_id *id)
/* read TWL IDCODE Register */
if (twl_id == TWL4030_CLASS_ID) {
- ret = twl_read_idcode_register();
- WARN(ret < 0, "Error: reading twl_idcode register value\n");
+ status = twl_read_idcode_register();
+ WARN(status < 0, "Error: reading twl_idcode register value\n");
}
/* load power event scripts */
@@ -1272,18 +1272,22 @@ twl_probe(struct i2c_client *client, const struct i2c_device_id *id)
}
}
- /* Disable TWL4030/TWL5030 I2C Pull-up on I2C1 and I2C4(SR) interface.
+ /*
+ * Disable TWL4030/TWL5030 I2C Pull-up on I2C1 and I2C4(SR) interface.
* Program I2C_SCL_CTRL_PU(bit 0)=0, I2C_SDA_CTRL_PU (bit 2)=0,
* SR_I2C_SCL_CTRL_PU(bit 4)=0 and SR_I2C_SDA_CTRL_PU(bit 6)=0.
*/
-
if (twl_class_is_4030()) {
+ u8 temp;
+
twl_i2c_read_u8(TWL4030_MODULE_INTBR, &temp, REG_GPPUPDCTR1);
temp &= ~(SR_I2C_SDA_CTRL_PU | SR_I2C_SCL_CTRL_PU | \
- I2C_SDA_CTRL_PU | I2C_SCL_CTRL_PU);
+ I2C_SDA_CTRL_PU | I2C_SCL_CTRL_PU);
twl_i2c_write_u8(TWL4030_MODULE_INTBR, temp, REG_GPPUPDCTR1);
}
+ status = -ENODEV;
+
if (node)
status = of_platform_populate(node, NULL, NULL, &client->dev);
if (status)
@@ -1292,6 +1296,7 @@ twl_probe(struct i2c_client *client, const struct i2c_device_id *id)
fail:
if (status < 0)
twl_remove(client);
+
return status;
}
diff --git a/drivers/mfd/twl4030-irq.c b/drivers/mfd/twl4030-irq.c
index 3b748b71c0f..5d656e81435 100644
--- a/drivers/mfd/twl4030-irq.c
+++ b/drivers/mfd/twl4030-irq.c
@@ -32,7 +32,6 @@
#include <linux/interrupt.h>
#include <linux/irq.h>
#include <linux/slab.h>
-
#include <linux/of.h>
#include <linux/irqdomain.h>
#include <linux/i2c/twl.h>
@@ -639,14 +638,14 @@ int twl4030_sih_setup(struct device *dev, int module, int irq_base)
int status = -EINVAL;
/* only support modules with standard clear-on-read for now */
- for (sih_mod = 0, sih = sih_modules;
- sih_mod < nr_sih_modules;
+ for (sih_mod = 0, sih = sih_modules; sih_mod < nr_sih_modules;
sih_mod++, sih++) {
if (sih->module == module && sih->set_cor) {
status = 0;
break;
}
}
+
if (status < 0)
return status;
@@ -676,7 +675,7 @@ int twl4030_sih_setup(struct device *dev, int module, int irq_base)
status = request_threaded_irq(irq, NULL, handle_twl4030_sih, 0,
agent->irq_name ?: sih->name, NULL);
- pr_info("twl4030: %s (irq %d) chaining IRQs %d..%d\n", sih->name,
+ dev_info(dev, "%s (irq %d) chaining IRQs %d..%d\n", sih->name,
irq, irq_base, irq_base + i - 1);
return status < 0 ? status : irq_base;
@@ -692,12 +691,10 @@ int twl4030_sih_setup(struct device *dev, int module, int irq_base)
int twl4030_init_irq(struct device *dev, int irq_num)
{
static struct irq_chip twl4030_irq_chip;
+ int status, i;
int irq_base, irq_end, nr_irqs;
struct device_node *node = dev->of_node;
- int status;
- int i;
-
/*
* TWL core and pwr interrupts must be contiguous because
* the hwirqs numbers are defined contiguously from 1 to 15.
@@ -727,7 +724,7 @@ int twl4030_init_irq(struct device *dev, int irq_num)
twl4030_irq_base = irq_base;
/*
- * install an irq handler for each of the SIH modules;
+ * Install an irq handler for each of the SIH modules;
* clone dummy irq_chip since PIH can't *do* anything
*/
twl4030_irq_chip = dummy_irq_chip;
@@ -742,13 +739,13 @@ int twl4030_init_irq(struct device *dev, int irq_num)
activate_irq(i);
}
- pr_info("twl4030: %s (irq %d) chaining IRQs %d..%d\n", "PIH",
+ dev_info(dev, "%s (irq %d) chaining IRQs %d..%d\n", "PIH",
irq_num, irq_base, irq_end);
/* ... and the PWR_INT module ... */
status = twl4030_sih_setup(dev, TWL4030_MODULE_INT, irq_end);
if (status < 0) {
- pr_err("twl4030: sih_setup PWR INT --> %d\n", status);
+ dev_err(dev, "sih_setup PWR INT --> %d\n", status);
goto fail;
}
@@ -757,7 +754,7 @@ int twl4030_init_irq(struct device *dev, int irq_num)
IRQF_ONESHOT,
"TWL4030-PIH", NULL);
if (status < 0) {
- pr_err("twl4030: could not claim irq%d: %d\n", irq_num, status);
+ dev_err(dev, "could not claim irq%d: %d\n", irq_num, status);
goto fail_rqirq;
}
diff --git a/drivers/mfd/twl6030-irq.c b/drivers/mfd/twl6030-irq.c
index 86c4082fa41..b76902f1e44 100644
--- a/drivers/mfd/twl6030-irq.c
+++ b/drivers/mfd/twl6030-irq.c
@@ -53,7 +53,6 @@
*
* We set up IRQs starting at a platform-specified base. An interrupt map table,
* specifies mapping between interrupt number and the associated module.
- *
*/
#define TWL6030_NR_IRQS 20
@@ -352,14 +351,11 @@ int twl6030_init_irq(struct device *dev, int irq_num)
{
struct device_node *node = dev->of_node;
int nr_irqs, irq_base, irq_end;
-
- int status = 0;
- int i;
struct task_struct *task;
- int ret;
- u8 mask[4];
-
- static struct irq_chip twl6030_irq_chip;
+ static struct irq_chip twl6030_irq_chip;
+ int status = 0;
+ int i;
+ u8 mask[4];
nr_irqs = TWL6030_NR_IRQS;
@@ -377,16 +373,18 @@ int twl6030_init_irq(struct device *dev, int irq_num)
mask[1] = 0xFF;
mask[2] = 0xFF;
mask[3] = 0xFF;
- ret = twl_i2c_write(TWL_MODULE_PIH, &mask[0],
- REG_INT_MSK_LINE_A, 3); /* MASK ALL INT LINES */
- ret = twl_i2c_write(TWL_MODULE_PIH, &mask[0],
- REG_INT_MSK_STS_A, 3); /* MASK ALL INT STS */
- ret = twl_i2c_write(TWL_MODULE_PIH, &mask[0],
- REG_INT_STS_A, 3); /* clear INT_STS_A,B,C */
+
+ /* mask all int lines */
+ twl_i2c_write(TWL_MODULE_PIH, &mask[0], REG_INT_MSK_LINE_A, 3);
+ /* mask all int sts */
+ twl_i2c_write(TWL_MODULE_PIH, &mask[0], REG_INT_MSK_STS_A, 3);
+ /* clear INT_STS_A,B,C */
+ twl_i2c_write(TWL_MODULE_PIH, &mask[0], REG_INT_STS_A, 3);
twl6030_irq_base = irq_base;
- /* install an irq handler for each of the modules;
+ /*
+ * install an irq handler for each of the modules;
* clone dummy irq_chip since PIH can't *do* anything
*/
twl6030_irq_chip = dummy_irq_chip;
@@ -401,22 +399,22 @@ int twl6030_init_irq(struct device *dev, int irq_num)
activate_irq(i);
}
- pr_info("twl6030: %s (irq %d) chaining IRQs %d..%d\n", "PIH",
+ dev_info(dev, "PIH (irq %d) chaining IRQs %d..%d\n",
irq_num, irq_base, irq_end);
/* install an irq handler to demultiplex the TWL6030 interrupt */
init_completion(&irq_event);
- status = request_irq(irq_num, handle_twl6030_pih, 0,
- "TWL6030-PIH", &irq_event);
+ status = request_irq(irq_num, handle_twl6030_pih, 0, "TWL6030-PIH",
+ &irq_event);
if (status < 0) {
- pr_err("twl6030: could not claim irq%d: %d\n", irq_num, status);
+ dev_err(dev, "could not claim irq %d: %d\n", irq_num, status);
goto fail_irq;
}
task = kthread_run(twl6030_irq_thread, (void *)irq_num, "twl6030-irq");
if (IS_ERR(task)) {
- pr_err("twl6030: could not create irq %d thread!\n", irq_num);
+ dev_err(dev, "could not create irq %d thread!\n", irq_num);
status = PTR_ERR(task);
goto fail_kthread;
}
@@ -431,6 +429,7 @@ fail_kthread:
fail_irq:
for (i = irq_base; i < irq_end; i++)
irq_set_chip_and_handler(i, NULL, NULL);
+
return status;
}
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-11-24 10:40:48 +0000