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 <[email protected]>
---
 arch/arm/mach-exynos/Kconfig         |    1 +
 arch/arm/mach-exynos/mach-smdk4x12.c |    6 ++++++
 2 files changed, 7 insertions(+), 0 deletions(-)

diff --git a/arch/arm/mach-exynos/Kconfig b/arch/arm/mach-exynos/Kconfig
index 4b7d15d..798634d 100644
--- a/arch/arm/mach-exynos/Kconfig
+++ b/arch/arm/mach-exynos/Kconfig
@@ -384,6 +384,7 @@ config MACH_SMDK4212
        select EXYNOS4_SETUP_KEYPAD
        select EXYNOS4_SETUP_SDHCI
        select EXYNOS4_SETUP_USB_PHY
+       select S3C24XX_PWM
        help
          Machine support for Samsung SMDK4212
 
diff --git a/arch/arm/mach-exynos/mach-smdk4x12.c 
b/arch/arm/mach-exynos/mach-smdk4x12.c
index ee069b4..9c74e8f 100644
--- a/arch/arm/mach-exynos/mach-smdk4x12.c
+++ b/arch/arm/mach-exynos/mach-smdk4x12.c
@@ -17,6 +17,7 @@
 #include <linux/mfd/max8997.h>
 #include <linux/mmc/host.h>
 #include <linux/platform_device.h>
+#include <linux/pwm.h>
 #include <linux/pwm_backlight.h>
 #include <linux/regulator/machine.h>
 #include <linux/serial_core.h>
@@ -222,6 +223,10 @@ static struct platform_pwm_backlight_data smdk4x12_bl_data 
= {
        .pwm_period_ns  = 1000,
 };
 
+static struct pwm_lookup smdk4x12_pwm_lookup[] = {
+       PWM_LOOKUP("s3c24xx-pwm.1", 0, "pwm-backlight.0", NULL),
+};
+
 static uint32_t smdk4x12_keymap[] __initdata = {
        /* KEY(row, col, keycode) */
        KEY(1, 3, KEY_1), KEY(1, 4, KEY_2), KEY(1, 5, KEY_3),
@@ -349,6 +354,7 @@ static void __init smdk4x12_machine_init(void)
                                ARRAY_SIZE(smdk4x12_i2c_devs7));
 
        samsung_bl_set(&smdk4x12_bl_gpio_info, &smdk4x12_bl_data);
+       pwm_add_table(smdk4x12_pwm_lookup, ARRAY_SIZE(smdk4x12_pwm_lookup));
 
        samsung_keypad_set_platdata(&smdk4x12_keypad_data);
 
-- 
1.7.4.1

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