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authorThierry Reding <thierry.reding@gmail.com>2015-10-13 05:04:22 +0900
committerKukjin Kim <kgene@kernel.org>2015-10-13 05:04:22 +0900
commit799fbf8ceef4621dd3dd01499ef13cab1d082896 (patch)
tree9e44a31f46a155f803ff62019f4da55bafebc5a7 /arch/arm/mach-s3c64xx
parentbf0ff1cd21a34ced1b34a42f12de8ec1ae7cfd3b (diff)
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>
Diffstat (limited to 'arch/arm/mach-s3c64xx')
-rw-r--r--arch/arm/mach-s3c64xx/mach-crag6410.c9
1 files changed, 7 insertions, 2 deletions
diff --git a/arch/arm/mach-s3c64xx/mach-crag6410.c b/arch/arm/mach-s3c64xx/mach-crag6410.c
index 65c426bc45f7..d13aa3f9bac4 100644
--- a/arch/arm/mach-s3c64xx/mach-crag6410.c
+++ b/arch/arm/mach-s3c64xx/mach-crag6410.c
@@ -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);