From: kfx <kfx@rock-chips.com>
Date: Thu, 10 Jan 2013 09:56:49 +0000 (+0800)
Subject: rk3168: ds1006h: set bl_pwm output freq 20K
X-Git-Tag: firefly_0821_release~7964
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=9aeb6ccfc7d05574ce9c21b8c8cd0097fc46f5b5;p=firefly-linux-kernel-4.4.55.git

rk3168: ds1006h: set bl_pwm output freq 20K
---

diff --git a/arch/arm/mach-rk30/board-rk3168-ds1006h.c b/arch/arm/mach-rk30/board-rk3168-ds1006h.c
index bf3ebe5d182c..acdac9fe1de3 100644
--- a/arch/arm/mach-rk30/board-rk3168-ds1006h.c
+++ b/arch/arm/mach-rk30/board-rk3168-ds1006h.c
@@ -206,6 +206,7 @@ static int rk29_backlight_pwm_resume(void)
 
 static struct rk29_bl_info rk29_bl_info = {
         .min_brightness = 30,
+	.pre_div = 20 * 000,  // pwm output clk: 20k;
 	.pwm_id = PWM_ID,
 	.bl_ref = PWM_EFFECT_VALUE,
 	.io_init = rk29_backlight_io_init,