ARM: EXYNOS: Add generic PWM lookup support for SMDKV310

Generic PWM framework requires that the board setup code
register a static mapping that can be used to match PWM
consumers to providers.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Reviewed-by: <thierry.reding@avionic-design.de>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>

2 files changed, 8 insertions, 0 deletions

diff --git a/arch/arm/mach-exynos/Kconfig b/arch/arm/mach-exynos/Kconfig
index bd78d5d70c83..7ec64c8c9917 100644
--- a/arch/arm/mach-exynos/Kconfig
+++ b/arch/arm/mach-exynos/Kconfig
@@ -221,6 +221,7 @@ config MACH_SMDKV310
         select EXYNOS4_SETUP_KEYPAD
         select EXYNOS4_SETUP_SDHCI
         select EXYNOS4_SETUP_USB_PHY
+        select S3C24XX_PWM
         help
           Machine support for Samsung SMDKV310
 
diff --git a/arch/arm/mach-exynos/mach-smdkv310.c b/arch/arm/mach-exynos/mach-smdkv310.c
index 3cfa688d274a..1ba87e963f5b 100644
--- a/arch/arm/mach-exynos/mach-smdkv310.c
+++ b/arch/arm/mach-exynos/mach-smdkv310.c
@@ -18,6 +18,7 @@
 #include <linux/io.h>
 #include <linux/i2c.h>
 #include <linux/input.h>
+#include <linux/pwm.h>
 #include <linux/pwm_backlight.h>
 #include <linux/platform_data/s3c-hsotg.h>
 
@@ -354,6 +355,10 @@ static struct platform_pwm_backlight_data smdkv310_bl_data = {
         .pwm_period_ns  = 1000,
 };
 
+static struct pwm_lookup smdkv310_pwm_lookup[] = {
+        PWM_LOOKUP("s3c24xx-pwm.1", 0, "pwm-backlight.0", NULL),
+};
+
 static void s5p_tv_setup(void)
 {
         /* direct HPD to HDMI chip */
@@ -392,6 +397,8 @@ static void __init smdkv310_machine_init(void)
         samsung_keypad_set_platdata(&smdkv310_keypad_data);
 
         samsung_bl_set(&smdkv310_bl_gpio_info, &smdkv310_bl_data);
+        pwm_add_table(smdkv310_pwm_lookup, ARRAY_SIZE(smdkv310_pwm_lookup));
+
 #ifdef CONFIG_DRM_EXYNOS
         s5p_device_fimd0.dev.platform_data = &drm_fimd_pdata;
         exynos4_fimd0_gpio_setup_24bpp();