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Samsung SoC updates for v4.4

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- use PWM lookup table with pwm_add_table() for the following boards
   : s3c24xx h1940 and rx1950
   : s3c64xx smdk6410, crag6410, hmt and smartq
 - document: update bootloader interface on exynos542x
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Merge tag 'samsung-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into next/soc

Samsung SoC updates for v4.4

- use PWM lookup table with pwm_add_table() for the following boards
  : s3c24xx h1940 and rx1950
  : s3c64xx smdk6410, crag6410, hmt and smartq
- document: update bootloader interface on exynos542x

* tag 'samsung-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung:
  Documentation: EXYNOS: Update bootloader interface on exynos542x
  ARM: S3C64XX: Use PWM lookup table for mach-smartq
  ARM: S3C64XX: Use PWM lookup table for mach-hmt
  ARM: S3C64XX: Use PWM lookup table for mach-crag6410
  ARM: S3C64XX: Use PWM lookup table for smdk6410
  ARM: S3C24XX: Use PWM lookup table for mach-rx1950
  ARM: S3C24XX: Use PWM lookup table for mach-h1940

Signed-off-by: Olof Johansson <olof@lixom.net>
This commit is contained in:
Olof Johansson 2015-10-26 10:18:41 +09:00
commit 156746b173
8 changed files with 44 additions and 18 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

5
Documentation/arm/Samsung/Bootloader-interface.txt
View file

@ -19,7 +19,7 @@ executing kernel.
Address: sysram_ns_base_addr
Offset Value Purpose
=============================================================================
0x08 exynos_cpu_resume_ns System suspend
0x08 exynos_cpu_resume_ns, mcpm_entry_point System suspend
0x0c 0x00000bad (Magic cookie) System suspend
0x1c exynos4_secondary_startup Secondary CPU boot
0x1c + 4*cpu exynos4_secondary_startup (Exynos4412) Secondary CPU boot
@ -56,7 +56,8 @@ Offset Value Purpose
Address: pmu_base_addr
Offset Value Purpose
=============================================================================
0x0908 Non-zero (only Exynos3250) Secondary CPU boot up indicator
0x0908 Non-zero Secondary CPU boot up indicator
on Exynos3250 and Exynos542x
4. Glossary

10
arch/arm/mach-s3c24xx/mach-h1940.c
View file

@ -25,6 +25,7 @@
#include <linux/gpio.h>
#include <linux/input.h>
#include <linux/gpio_keys.h>
#include <linux/pwm.h>
#include <linux/pwm_backlight.h>
#include <linux/i2c.h>
#include <linux/leds.h>
@ -469,6 +470,11 @@ static struct s3c24xx_mci_pdata h1940_mmc_cfg __initdata = {
.ocr_avail = MMC_VDD_32_33,
};
static struct pwm_lookup h1940_pwm_lookup[] = {
PWM_LOOKUP("samsung-pwm", 0, "pwm-backlight", NULL, 36296,
PWM_POLARITY_NORMAL),
};
static int h1940_backlight_init(struct device *dev)
{
gpio_request(S3C2410_GPB(0), "Backlight");
@ -503,11 +509,8 @@ static void h1940_backlight_exit(struct device *dev)
static struct platform_pwm_backlight_data backlight_data = {
.pwm_id = 0,
.max_brightness = 100,
.dft_brightness = 50,
/* tcnt = 0x31 */
.pwm_period_ns = 36296,
.enable_gpio = -1,
.init = h1940_backlight_init,
.notify = h1940_backlight_notify,
@ -725,6 +728,7 @@ static void __init h1940_init(void)
gpio_request(H1940_LATCH_SD_POWER, "SD power");
gpio_direction_output(H1940_LATCH_SD_POWER, 0);
pwm_add_table(h1940_pwm_lookup, ARRAY_SIZE(h1940_pwm_lookup));
platform_add_devices(h1940_devices, ARRAY_SIZE(h1940_devices));
gpio_request(S3C2410_GPA(1), "Red LED blink");

8
arch/arm/mach-s3c24xx/mach-rx1950.c
View file

@ -375,6 +375,11 @@ static struct s3c2410fb_mach_info rx1950_lcd_cfg = {
};
static struct pwm_lookup rx1950_pwm_lookup[] = {
PWM_LOOKUP("samsung-pwm", 0, "pwm-backlight.0", NULL, 48000,
PWM_POLARITY_NORMAL),
};
static struct pwm_device *lcd_pwm;
static void rx1950_lcd_power(int enable)
@ -520,10 +525,8 @@ static int rx1950_backlight_notify(struct device *dev, int brightness)
}
static struct platform_pwm_backlight_data rx1950_backlight_data = {
.pwm_id = 0,
.max_brightness = 24,
.dft_brightness = 4,
.pwm_period_ns = 48000,
.enable_gpio = -1,
.init = rx1950_backlight_init,
.notify = rx1950_backlight_notify,
@ -792,6 +795,7 @@ static void __init rx1950_init_machine(void)
gpio_direction_output(S3C2410_GPA(4), 0);
gpio_direction_output(S3C2410_GPJ(6), 0);
pwm_add_table(rx1950_pwm_lookup, ARRAY_SIZE(rx1950_pwm_lookup));
platform_add_devices(rx1950_devices, ARRAY_SIZE(rx1950_devices));
i2c_register_board_info(0, rx1950_i2c_devices,

4
arch/arm/mach-s3c64xx/dev-backlight.c
View file

@ -69,7 +69,6 @@ static struct samsung_bl_drvdata samsung_dfl_bl_data __initdata = {
.plat_data = {
.max_brightness = 255,
.dft_brightness = 255,
.pwm_period_ns = 78770,
.enable_gpio = -1,
.init = samsung_bl_init,
.exit = samsung_bl_exit,
@ -111,7 +110,6 @@ void __init samsung_bl_set(struct samsung_bl_gpio_info *gpio_info,
samsung_bl_data = &samsung_bl_drvdata->plat_data;
/* Copy board specific data provided by user */
samsung_bl_data->pwm_id = bl_data->pwm_id;
samsung_bl_device->dev.parent = &samsung_device_pwm.dev;
if (bl_data->max_brightness)
@ -120,8 +118,6 @@ void __init samsung_bl_set(struct samsung_bl_gpio_info *gpio_info,
samsung_bl_data->dft_brightness = bl_data->dft_brightness;
if (bl_data->lth_brightness)
samsung_bl_data->lth_brightness = bl_data->lth_brightness;
if (bl_data->pwm_period_ns)
samsung_bl_data->pwm_period_ns = bl_data->pwm_period_ns;
if (bl_data->enable_gpio >= 0)
samsung_bl_data->enable_gpio = bl_data->enable_gpio;
if (bl_data->init)

9
arch/arm/mach-s3c64xx/mach-crag6410.c
View file

@ -25,6 +25,7 @@
#include <linux/mmc/host.h>
#include <linux/regulator/machine.h>
#include <linux/regulator/fixed.h>
#include <linux/pwm.h>
#include <linux/pwm_backlight.h>
#include <linux/dm9000.h>
#include <linux/gpio_keys.h>
@ -108,11 +109,14 @@ static struct s3c2410_uartcfg crag6410_uartcfgs[] __initdata = {
},
};
static struct pwm_lookup crag6410_pwm_lookup[] = {
PWM_LOOKUP("samsung-pwm", 0, "pwm-backlight", NULL, 100000,
PWM_POLARITY_NORMAL),
};
static struct platform_pwm_backlight_data crag6410_backlight_data = {
.pwm_id = 0,
.max_brightness = 1000,
.dft_brightness = 600,
.pwm_period_ns = 100000, /* about 1kHz */
.enable_gpio = -1,
};
@ -843,6 +847,7 @@ static void __init crag6410_machine_init(void)
samsung_keypad_set_platdata(&crag6410_keypad_data);
s3c64xx_spi0_set_platdata(NULL, 0, 2);
pwm_add_table(crag6410_pwm_lookup, ARRAY_SIZE(crag6410_pwm_lookup));
platform_add_devices(crag6410_devices, ARRAY_SIZE(crag6410_devices));
gpio_led_register_device(-1, &gpio_leds_pdata);

9
arch/arm/mach-s3c64xx/mach-hmt.c
View file

@ -19,6 +19,7 @@
#include <linux/gpio.h>
#include <linux/delay.h>
#include <linux/leds.h>
#include <linux/pwm.h>
#include <linux/pwm_backlight.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/partitions.h>
@ -73,6 +74,11 @@ static struct s3c2410_uartcfg hmt_uartcfgs[] __initdata = {
},
};
static struct pwm_lookup hmt_pwm_lookup[] = {
PWM_LOOKUP("samsung-pwm", 1, "pwm-backlight.0", NULL,
1000000000 / (100 * 256 * 20), PWM_POLARITY_NORMAL),
};
static int hmt_bl_init(struct device *dev)
{
int ret;
@ -110,10 +116,8 @@ static void hmt_bl_exit(struct device *dev)
}
static struct platform_pwm_backlight_data hmt_backlight_data = {
.pwm_id = 1,
.max_brightness = 100 * 256,
.dft_brightness = 40 * 256,
.pwm_period_ns = 1000000000 / (100 * 256 * 20),
.enable_gpio = -1,
.init = hmt_bl_init,
.notify = hmt_bl_notify,
@ -268,6 +272,7 @@ static void __init hmt_machine_init(void)
gpio_request(S3C64XX_GPF(13), "usb power");
gpio_direction_output(S3C64XX_GPF(13), 1);
pwm_add_table(hmt_pwm_lookup, ARRAY_SIZE(hmt_pwm_lookup));
platform_add_devices(hmt_devices, ARRAY_SIZE(hmt_devices));
}

9
arch/arm/mach-s3c64xx/mach-smartq.c
View file

@ -14,6 +14,7 @@
#include <linux/gpio.h>
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/pwm.h>
#include <linux/pwm_backlight.h>
#include <linux/serial_core.h>
#include <linux/serial_s3c.h>
@ -139,6 +140,11 @@ static struct platform_device smartq_usb_otg_vbus_dev = {
.dev.platform_data = &smartq_usb_otg_vbus_pdata,
};
static struct pwm_lookup smartq_pwm_lookup[] = {
PWM_LOOKUP("samsung-pwm", 1, "pwm-backlight.0", NULL,
1000000000 / (1000 * 20), PWM_POLARITY_NORMAL),
};
static int smartq_bl_init(struct device *dev)
{
s3c_gpio_cfgpin(S3C64XX_GPF(15), S3C_GPIO_SFN(2));
@ -147,10 +153,8 @@ static int smartq_bl_init(struct device *dev)
}
static struct platform_pwm_backlight_data smartq_backlight_data = {
.pwm_id = 1,
.max_brightness = 1000,
.dft_brightness = 600,
.pwm_period_ns = 1000000000 / (1000 * 20),
.enable_gpio = -1,
.init = smartq_bl_init,
};
@ -396,5 +400,6 @@ void __init smartq_machine_init(void)
WARN_ON(smartq_usb_host_init());
WARN_ON(smartq_wifi_init());
pwm_add_table(smartq_pwm_lookup, ARRAY_SIZE(smartq_pwm_lookup));
platform_add_devices(smartq_devices, ARRAY_SIZE(smartq_devices));
}

8
arch/arm/mach-s3c64xx/mach-smdk6410.c
View file

@ -30,6 +30,7 @@
#include <linux/smsc911x.h>
#include <linux/regulator/fixed.h>
#include <linux/regulator/machine.h>
#include <linux/pwm.h>
#include <linux/pwm_backlight.h>
#include <linux/platform_data/s3c-hsotg.h>
@ -623,8 +624,12 @@ static struct samsung_bl_gpio_info smdk6410_bl_gpio_info = {
.func = S3C_GPIO_SFN(2),
};
static struct pwm_lookup smdk6410_pwm_lookup[] = {
PWM_LOOKUP("samsung-pwm", 1, "pwm-backlight.0", NULL, 78770,
PWM_POLARITY_NORMAL),
};
static struct platform_pwm_backlight_data smdk6410_bl_data = {
.pwm_id = 1,
.enable_gpio = -1,
};
@ -695,6 +700,7 @@ static void __init smdk6410_machine_init(void)
platform_add_devices(smdk6410_devices, ARRAY_SIZE(smdk6410_devices));
pwm_add_table(smdk6410_pwm_lookup, ARRAY_SIZE(smdk6410_pwm_lookup));
samsung_bl_set(&smdk6410_bl_gpio_info, &smdk6410_bl_data);
}