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Merge branch 'for-2637/s3c24xx-all' of git://git.fluff.org/bjdooks/linux
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* 'for-2637/s3c24xx-all' of git://git.fluff.org/bjdooks/linux:
  ARM: h1940: add UDA1380 to i2c devices list
  ARM: h1940: Fix backlight and LCD power functions
  ARM: S3C2440: fix boot failure introduced by recent changes in gpiolib
  ARM: S3C2440: various fixes in Kconfig file
  ARM: rx1950: Add UDA1380 to i2c devices list
  ARM: rx1950: Add LEDs support
  ARM: rx1950: Add battery device
  ARM: h1940: Implement mmc_power function
  ARM: h1940: Use gpiolib for latch access
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@torvalds
torvalds committed Oct 29, 2010
2 parents 44234d0 + d7b4e42 commit e4dd654
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Showing 7 changed files with 399 additions and 68 deletions.
13 changes: 10 additions & 3 deletions arch/arm/mach-s3c2410/h1940-bluetooth.c
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Original file line number Diff line number Diff line change
Expand Up @@ -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);

Expand All @@ -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);
}
}

Expand All @@ -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;
}

Expand Down
57 changes: 18 additions & 39 deletions arch/arm/mach-s3c2410/include/mach/h1940-latch.h
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Original file line number Diff line number Diff line change
Expand Up @@ -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 */
169 changes: 154 additions & 15 deletions arch/arm/mach-s3c2410/mach-h1940.c
View file
Original file line number Diff line number Diff line change
Expand Up @@ -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>
Expand Down Expand Up @@ -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,
Expand Down Expand Up @@ -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;

Expand All @@ -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)
{
Expand All @@ -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;
Expand Down Expand Up @@ -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,
};

Expand All @@ -213,22 +272,40 @@ 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,
.dft_brightness = 50,
/* tcnt = 0x31 */
.pwm_period_ns = 36296,
.init = h1940_backlight_init,
.notify = h1940_backlight_notify,
.exit = h1940_backlight_exit,
};

Expand All @@ -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);
}
}

Expand All @@ -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,
Expand All @@ -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 */
Expand Down Expand Up @@ -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")
Expand Down
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