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ARM: S3C64XX: Use PWM lookup table for mach-crag6410 

Use a PWM lookup table to provide the PWM to the pwm-backlight device.
The driver has a legacy code path that is required only because boards
still use the legacy method of requesting PWMs by global ID. Replacing
these usages allows that legacy fallback to be removed.

Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Kukjin Kim <kgene@kernel.org>
This commit is contained in:
Thierry Reding 2015-10-13 05:04:22 +09:00 committed by Kukjin Kim
parent bf0ff1cd21
commit 799fbf8cee
1 changed files with 7 additions and 2 deletions
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9
arch/arm/mach-s3c64xx/mach-crag6410.c
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@ -25,6 +25,7 @@
#include <linux/mmc/host.h> #include <linux/mmc/host.h>
#include <linux/regulator/machine.h> #include <linux/regulator/machine.h>
#include <linux/regulator/fixed.h> #include <linux/regulator/fixed.h>
#include <linux/pwm.h>
#include <linux/pwm_backlight.h> #include <linux/pwm_backlight.h>
#include <linux/dm9000.h> #include <linux/dm9000.h>
#include <linux/gpio_keys.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 = { static struct platform_pwm_backlight_data crag6410_backlight_data = {
.pwm_id = 0,
.max_brightness = 1000, .max_brightness = 1000,
.dft_brightness = 600, .dft_brightness = 600,
.pwm_period_ns = 100000, /* about 1kHz */
.enable_gpio = -1, .enable_gpio = -1,
}; };
@ -843,6 +847,7 @@ static void __init crag6410_machine_init(void)
samsung_keypad_set_platdata(&crag6410_keypad_data); samsung_keypad_set_platdata(&crag6410_keypad_data);
s3c64xx_spi0_set_platdata(NULL, 0, 2); 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)); platform_add_devices(crag6410_devices, ARRAY_SIZE(crag6410_devices));
gpio_led_register_device(-1, &gpio_leds_pdata); gpio_led_register_device(-1, &gpio_leds_pdata);