From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Thu, 13 Sep 2012 06:54:18 +0000 (+0900)
Subject: ARM: EXYNOS: Add generic PWM lookup support for SMDKV310
X-Git-Tag: firefly_0821_release~3680^2~1959^2^2
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=fae9659a2cabcdaa01ea5a87568677e5cb037478;p=firefly-linux-kernel-4.4.55.git

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>
---

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();