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

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 05:04:24 +09:00 committed by Kukjin Kim
parent dd39be623e
commit 4dddfb8823
1 changed files with 7 additions and 2 deletions
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9
arch/arm/mach-s3c64xx/mach-smartq.c
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@ -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));
}