X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?p=pandora-kernel.git;a=blobdiff_plain;f=arch%2Farm%2Fmach-s3c2410%2Fmach-h1940.c;h=d7ada8c7e41f89a1d8bf5c525aa79c37c1eb1d97;hp=98c5c9e81ee9d8e20af0c27ee98d7f2e4001a8b5;hb=17f490bcedd7b6677140b2d49efe9e9e6b84de60;hpb=f9cef506815386df4bd7e463b59e0a0984ce0355

diff --git a/arch/arm/mach-s3c2410/mach-h1940.c b/arch/arm/mach-s3c2410/mach-h1940.c
index 98c5c9e81ee9..d7ada8c7e41f 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")