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Commit 4dddfb88 authored by Thierry Reding's avatar Thierry Reding Committed by Kukjin Kim
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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: default avatarThierry Reding <thierry.reding@gmail.com>
Reviewed-by: default avatarKrzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: default avatarKukjin Kim <kgene@kernel.org>
parent dd39be62

arch/arm/mach-s3c64xx/mach-smartq.c

+7 −2
Original line number Diff line number Diff line
@@ -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));

}