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authorThierry Reding <thierry.reding@gmail.com>2015-10-13 05:04:24 +0900
committerKukjin Kim <kgene@kernel.org>2015-10-13 05:04:24 +0900
commit4dddfb882373b542d33a98576975237a23c0110c (patch)
treedb9494ee7152cf0e0c4e6a1a1fa4144037b26d3b /arch/arm/mach-s3c64xx
parentdd39be623e733ab90ec36d72e72234cd50156724 (diff)
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>
Diffstat (limited to 'arch/arm/mach-s3c64xx')
-rw-r--r--arch/arm/mach-s3c64xx/mach-smartq.c9
1 files changed, 7 insertions, 2 deletions
diff --git a/arch/arm/mach-s3c64xx/mach-smartq.c b/arch/arm/mach-s3c64xx/mach-smartq.c
index b3d13537a7f0..7b8a3699795c 100644
--- a/arch/arm/mach-s3c64xx/mach-smartq.c
+++ b/arch/arm/mach-s3c64xx/mach-smartq.c
@@ -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));
}