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-rw-r--r--arch/arm/mach-s3c2410/h1940-bluetooth.c13
-rw-r--r--arch/arm/mach-s3c2410/include/mach/h1940-latch.h57
-rw-r--r--arch/arm/mach-s3c2410/mach-h1940.c169
3 files changed, 182 insertions, 57 deletions
diff --git a/arch/arm/mach-s3c2410/h1940-bluetooth.c b/arch/arm/mach-s3c2410/h1940-bluetooth.c
index 8cdeb14af59..8aa2f1902a9 100644
--- a/arch/arm/mach-s3c2410/h1940-bluetooth.c
+++ b/arch/arm/mach-s3c2410/h1940-bluetooth.c
@@ -30,7 +30,7 @@ static void h1940bt_enable(int on)
{
if (on) {
/* Power on the chip */
- h1940_latch_control(0, H1940_LATCH_BLUETOOTH_POWER);
+ gpio_set_value(H1940_LATCH_BLUETOOTH_POWER, 1);
/* Reset the chip */
mdelay(10);
@@ -43,7 +43,7 @@ static void h1940bt_enable(int on)
mdelay(10);
gpio_set_value(S3C2410_GPH(1), 0);
mdelay(10);
- h1940_latch_control(H1940_LATCH_BLUETOOTH_POWER, 0);
+ gpio_set_value(H1940_LATCH_BLUETOOTH_POWER, 0);
}
}
@@ -64,7 +64,14 @@ static int __devinit h1940bt_probe(struct platform_device *pdev)
ret = gpio_request(S3C2410_GPH(1), dev_name(&pdev->dev));
if (ret) {
- dev_err(&pdev->dev, "could not get GPH1\n");\
+ dev_err(&pdev->dev, "could not get GPH1\n");
+ return ret;
+ }
+
+ ret = gpio_request(H1940_LATCH_BLUETOOTH_POWER, dev_name(&pdev->dev));
+ if (ret) {
+ gpio_free(S3C2410_GPH(1));
+ dev_err(&pdev->dev, "could not get BT_POWER\n");
return ret;
}
diff --git a/arch/arm/mach-s3c2410/include/mach/h1940-latch.h b/arch/arm/mach-s3c2410/include/mach/h1940-latch.h
index d8a832729a8..97e42bfce81 100644
--- a/arch/arm/mach-s3c2410/include/mach/h1940-latch.h
+++ b/arch/arm/mach-s3c2410/include/mach/h1940-latch.h
@@ -14,51 +14,30 @@
#ifndef __ASM_ARCH_H1940_LATCH_H
#define __ASM_ARCH_H1940_LATCH_H
+#include <mach/gpio.h>
-#ifndef __ASSEMBLY__
-#define H1940_LATCH ((void __force __iomem *)0xF8000000)
-#else
-#define H1940_LATCH 0xF8000000
-#endif
-
-#define H1940_PA_LATCH (S3C2410_CS2)
+#define H1940_LATCH_GPIO(x) (S3C_GPIO_END + (x))
/* SD layer latch */
-#define H1940_LATCH_SDQ1 (1<<16)
-#define H1940_LATCH_LCD_P1 (1<<17)
-#define H1940_LATCH_LCD_P2 (1<<18)
-#define H1940_LATCH_LCD_P3 (1<<19)
-#define H1940_LATCH_MAX1698_nSHUTDOWN (1<<20) /* LCD backlight */
-#define H1940_LATCH_LED_RED (1<<21)
-#define H1940_LATCH_SDQ7 (1<<22)
-#define H1940_LATCH_USB_DP (1<<23)
+#define H1940_LATCH_LCD_P0 H1940_LATCH_GPIO(0)
+#define H1940_LATCH_LCD_P1 H1940_LATCH_GPIO(1)
+#define H1940_LATCH_LCD_P2 H1940_LATCH_GPIO(2)
+#define H1940_LATCH_LCD_P3 H1940_LATCH_GPIO(3)
+#define H1940_LATCH_MAX1698_nSHUTDOWN H1940_LATCH_GPIO(4)
+#define H1940_LATCH_LED_RED H1940_LATCH_GPIO(5)
+#define H1940_LATCH_SDQ7 H1940_LATCH_GPIO(6)
+#define H1940_LATCH_USB_DP H1940_LATCH_GPIO(7)
/* CPU layer latch */
-#define H1940_LATCH_UDA_POWER (1<<24)
-#define H1940_LATCH_AUDIO_POWER (1<<25)
-#define H1940_LATCH_SM803_ENABLE (1<<26)
-#define H1940_LATCH_LCD_P4 (1<<27)
-#define H1940_LATCH_CPUQ5 (1<<28) /* untraced */
-#define H1940_LATCH_BLUETOOTH_POWER (1<<29) /* active high */
-#define H1940_LATCH_LED_GREEN (1<<30)
-#define H1940_LATCH_LED_FLASH (1<<31)
-
-/* default settings */
-
-#define H1940_LATCH_DEFAULT \
- H1940_LATCH_LCD_P4 | \
- H1940_LATCH_SM803_ENABLE | \
- H1940_LATCH_SDQ1 | \
- H1940_LATCH_LCD_P1 | \
- H1940_LATCH_LCD_P2 | \
- H1940_LATCH_LCD_P3 | \
- H1940_LATCH_MAX1698_nSHUTDOWN | \
- H1940_LATCH_CPUQ5
-
-/* control functions */
-
-extern void h1940_latch_control(unsigned int clear, unsigned int set);
+#define H1940_LATCH_UDA_POWER H1940_LATCH_GPIO(8)
+#define H1940_LATCH_AUDIO_POWER H1940_LATCH_GPIO(9)
+#define H1940_LATCH_SM803_ENABLE H1940_LATCH_GPIO(10)
+#define H1940_LATCH_LCD_P4 H1940_LATCH_GPIO(11)
+#define H1940_LATCH_SD_POWER H1940_LATCH_GPIO(12)
+#define H1940_LATCH_BLUETOOTH_POWER H1940_LATCH_GPIO(13)
+#define H1940_LATCH_LED_GREEN H1940_LATCH_GPIO(14)
+#define H1940_LATCH_LED_FLASH H1940_LATCH_GPIO(15)
#endif /* __ASM_ARCH_H1940_LATCH_H */
diff --git a/arch/arm/mach-s3c2410/mach-h1940.c b/arch/arm/mach-s3c2410/mach-h1940.c
index 98c5c9e81ee..d7ada8c7e41 100644
--- a/arch/arm/mach-s3c2410/mach-h1940.c
+++ b/arch/arm/mach-s3c2410/mach-h1940.c
@@ -24,6 +24,7 @@
#include <linux/io.h>
#include <linux/gpio.h>
#include <linux/pwm_backlight.h>
+#include <linux/i2c.h>
#include <video/platform_lcd.h>
#include <linux/mmc/host.h>
@@ -59,6 +60,14 @@
#include <plat/mci.h>
#include <plat/ts.h>
+#include <sound/uda1380.h>
+
+#define H1940_LATCH ((void __force __iomem *)0xF8000000)
+
+#define H1940_PA_LATCH S3C2410_CS2
+
+#define H1940_LATCH_BIT(x) (1 << ((x) + 16 - S3C_GPIO_END))
+
static struct map_desc h1940_iodesc[] __initdata = {
[0] = {
.virtual = (unsigned long)H1940_LATCH,
@@ -100,9 +109,9 @@ static struct s3c2410_uartcfg h1940_uartcfgs[] __initdata = {
/* Board control latch control */
-static unsigned int latch_state = H1940_LATCH_DEFAULT;
+static unsigned int latch_state;
-void h1940_latch_control(unsigned int clear, unsigned int set)
+static void h1940_latch_control(unsigned int clear, unsigned int set)
{
unsigned long flags;
@@ -116,7 +125,42 @@ void h1940_latch_control(unsigned int clear, unsigned int set)
local_irq_restore(flags);
}
-EXPORT_SYMBOL_GPL(h1940_latch_control);
+static inline int h1940_gpiolib_to_latch(int offset)
+{
+ return 1 << (offset + 16);
+}
+
+static void h1940_gpiolib_latch_set(struct gpio_chip *chip,
+ unsigned offset, int value)
+{
+ int latch_bit = h1940_gpiolib_to_latch(offset);
+
+ h1940_latch_control(value ? 0 : latch_bit,
+ value ? latch_bit : 0);
+}
+
+static int h1940_gpiolib_latch_output(struct gpio_chip *chip,
+ unsigned offset, int value)
+{
+ h1940_gpiolib_latch_set(chip, offset, value);
+ return 0;
+}
+
+static int h1940_gpiolib_latch_get(struct gpio_chip *chip,
+ unsigned offset)
+{
+ return (latch_state >> (offset + 16)) & 1;
+}
+
+struct gpio_chip h1940_latch_gpiochip = {
+ .base = H1940_LATCH_GPIO(0),
+ .owner = THIS_MODULE,
+ .label = "H1940_LATCH",
+ .ngpio = 16,
+ .direction_output = h1940_gpiolib_latch_output,
+ .set = h1940_gpiolib_latch_set,
+ .get = h1940_gpiolib_latch_get,
+};
static void h1940_udc_pullup(enum s3c2410_udc_cmd_e cmd)
{
@@ -125,10 +169,10 @@ static void h1940_udc_pullup(enum s3c2410_udc_cmd_e cmd)
switch (cmd)
{
case S3C2410_UDC_P_ENABLE :
- h1940_latch_control(0, H1940_LATCH_USB_DP);
+ gpio_set_value(H1940_LATCH_USB_DP, 1);
break;
case S3C2410_UDC_P_DISABLE :
- h1940_latch_control(H1940_LATCH_USB_DP, 0);
+ gpio_set_value(H1940_LATCH_USB_DP, 0);
break;
case S3C2410_UDC_P_RESET :
break;
@@ -199,10 +243,25 @@ static struct platform_device h1940_device_bluetooth = {
.id = -1,
};
+static void h1940_set_mmc_power(unsigned char power_mode, unsigned short vdd)
+{
+ switch (power_mode) {
+ case MMC_POWER_OFF:
+ gpio_set_value(H1940_LATCH_SD_POWER, 0);
+ break;
+ case MMC_POWER_UP:
+ case MMC_POWER_ON:
+ gpio_set_value(H1940_LATCH_SD_POWER, 1);
+ break;
+ default:
+ break;
+ };
+}
+
static struct s3c24xx_mci_pdata h1940_mmc_cfg __initdata = {
.gpio_detect = S3C2410_GPF(5),
.gpio_wprotect = S3C2410_GPH(8),
- .set_power = NULL,
+ .set_power = h1940_set_mmc_power,
.ocr_avail = MMC_VDD_32_33,
};
@@ -213,15 +272,32 @@ static int h1940_backlight_init(struct device *dev)
gpio_direction_output(S3C2410_GPB(0), 0);
s3c_gpio_setpull(S3C2410_GPB(0), S3C_GPIO_PULL_NONE);
s3c_gpio_cfgpin(S3C2410_GPB(0), S3C2410_GPB0_TOUT0);
+ gpio_set_value(H1940_LATCH_MAX1698_nSHUTDOWN, 1);
return 0;
}
+static int h1940_backlight_notify(struct device *dev, int brightness)
+{
+ if (!brightness) {
+ gpio_direction_output(S3C2410_GPB(0), 1);
+ gpio_set_value(H1940_LATCH_MAX1698_nSHUTDOWN, 0);
+ } else {
+ gpio_direction_output(S3C2410_GPB(0), 0);
+ s3c_gpio_setpull(S3C2410_GPB(0), S3C_GPIO_PULL_NONE);
+ s3c_gpio_cfgpin(S3C2410_GPB(0), S3C2410_GPB0_TOUT0);
+ gpio_set_value(H1940_LATCH_MAX1698_nSHUTDOWN, 1);
+ }
+ return brightness;
+}
+
static void h1940_backlight_exit(struct device *dev)
{
gpio_direction_output(S3C2410_GPB(0), 1);
+ gpio_set_value(H1940_LATCH_MAX1698_nSHUTDOWN, 0);
}
+
static struct platform_pwm_backlight_data backlight_data = {
.pwm_id = 0,
.max_brightness = 100,
@@ -229,6 +305,7 @@ static struct platform_pwm_backlight_data backlight_data = {
/* tcnt = 0x31 */
.pwm_period_ns = 36296,
.init = h1940_backlight_init,
+ .notify = h1940_backlight_notify,
.exit = h1940_backlight_exit,
};
@@ -247,19 +324,37 @@ static void h1940_lcd_power_set(struct plat_lcd_data *pd,
int value;
if (!power) {
- /* set to 3ec */
- gpio_direction_output(S3C2410_GPC(0), 0);
+ gpio_set_value(S3C2410_GPC(0), 0);
/* wait for 3ac */
do {
value = gpio_get_value(S3C2410_GPC(6));
} while (value);
- /* set to 38c */
- gpio_direction_output(S3C2410_GPC(5), 0);
+
+ gpio_set_value(H1940_LATCH_LCD_P2, 0);
+ gpio_set_value(H1940_LATCH_LCD_P3, 0);
+ gpio_set_value(H1940_LATCH_LCD_P4, 0);
+
+ gpio_direction_output(S3C2410_GPC(1), 0);
+ gpio_direction_output(S3C2410_GPC(4), 0);
+
+ gpio_set_value(H1940_LATCH_LCD_P1, 0);
+ gpio_set_value(H1940_LATCH_LCD_P0, 0);
+
+ gpio_set_value(S3C2410_GPC(5), 0);
+
} else {
- /* Set to 3ac */
- gpio_direction_output(S3C2410_GPC(5), 1);
- /* Set to 3ad */
- gpio_direction_output(S3C2410_GPC(0), 1);
+ gpio_set_value(H1940_LATCH_LCD_P0, 1);
+ gpio_set_value(H1940_LATCH_LCD_P1, 1);
+
+ s3c_gpio_cfgpin(S3C2410_GPC(1), S3C_GPIO_SFN(2));
+ s3c_gpio_cfgpin(S3C2410_GPC(4), S3C_GPIO_SFN(2));
+
+ gpio_set_value(S3C2410_GPC(5), 1);
+ gpio_set_value(S3C2410_GPC(0), 1);
+
+ gpio_set_value(H1940_LATCH_LCD_P3, 1);
+ gpio_set_value(H1940_LATCH_LCD_P2, 1);
+ gpio_set_value(H1940_LATCH_LCD_P4, 1);
}
}
@@ -273,12 +368,26 @@ static struct platform_device h1940_lcd_powerdev = {
.dev.platform_data = &h1940_lcd_power_data,
};
+static struct uda1380_platform_data uda1380_info = {
+ .gpio_power = H1940_LATCH_UDA_POWER,
+ .gpio_reset = S3C2410_GPA(12),
+ .dac_clk = UDA1380_DAC_CLK_SYSCLK,
+};
+
+static struct i2c_board_info h1940_i2c_devices[] = {
+ {
+ I2C_BOARD_INFO("uda1380", 0x1a),
+ .platform_data = &uda1380_info,
+ },
+};
+
static struct platform_device *h1940_devices[] __initdata = {
&s3c_device_ohci,
&s3c_device_lcd,
&s3c_device_wdt,
&s3c_device_i2c0,
&s3c_device_iis,
+ &s3c_device_pcm,
&s3c_device_usbgadget,
&h1940_device_leds,
&h1940_device_bluetooth,
@@ -303,6 +412,10 @@ static void __init h1940_map_io(void)
memcpy(phys_to_virt(H1940_SUSPEND_RESUMEAT), h1940_pm_return, 1024);
#endif
s3c_pm_init();
+
+ /* Add latch gpio chip, set latch initial value */
+ h1940_latch_control(0, 0);
+ WARN_ON(gpiochip_add(&h1940_latch_gpiochip));
}
/* H1940 and RX3715 need to reserve this for suspend */
@@ -340,12 +453,38 @@ static void __init h1940_init(void)
writel(tmp, S3C2410_UPLLCON);
gpio_request(S3C2410_GPC(0), "LCD power");
+ gpio_request(S3C2410_GPC(1), "LCD power");
+ gpio_request(S3C2410_GPC(4), "LCD power");
gpio_request(S3C2410_GPC(5), "LCD power");
gpio_request(S3C2410_GPC(6), "LCD power");
-
+ gpio_request(H1940_LATCH_LCD_P0, "LCD power");
+ gpio_request(H1940_LATCH_LCD_P1, "LCD power");
+ gpio_request(H1940_LATCH_LCD_P2, "LCD power");
+ gpio_request(H1940_LATCH_LCD_P3, "LCD power");
+ gpio_request(H1940_LATCH_LCD_P4, "LCD power");
+ gpio_request(H1940_LATCH_MAX1698_nSHUTDOWN, "LCD power");
+ gpio_direction_output(S3C2410_GPC(0), 0);
+ gpio_direction_output(S3C2410_GPC(1), 0);
+ gpio_direction_output(S3C2410_GPC(4), 0);
+ gpio_direction_output(S3C2410_GPC(5), 0);
gpio_direction_input(S3C2410_GPC(6));
+ gpio_direction_output(H1940_LATCH_LCD_P0, 0);
+ gpio_direction_output(H1940_LATCH_LCD_P1, 0);
+ gpio_direction_output(H1940_LATCH_LCD_P2, 0);
+ gpio_direction_output(H1940_LATCH_LCD_P3, 0);
+ gpio_direction_output(H1940_LATCH_LCD_P4, 0);
+ gpio_direction_output(H1940_LATCH_MAX1698_nSHUTDOWN, 0);
+
+ gpio_request(H1940_LATCH_USB_DP, "USB pullup");
+ gpio_direction_output(H1940_LATCH_USB_DP, 0);
+
+ gpio_request(H1940_LATCH_SD_POWER, "SD power");
+ gpio_direction_output(H1940_LATCH_SD_POWER, 0);
platform_add_devices(h1940_devices, ARRAY_SIZE(h1940_devices));
+
+ i2c_register_board_info(0, h1940_i2c_devices,
+ ARRAY_SIZE(h1940_i2c_devices));
}
MACHINE_START(H1940, "IPAQ-H1940")
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-12-11 20:33:31 +0000