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ARM: S5PV210: Set 1000ns as PWM backlight period on SMDKV210

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The SMDK board uses LT3591 as backlight LED driver of LTE480WV LCD.
According to the LT3591 datasheet, the switching frequency should
be 1MHz. So, PWM period is calculated by following formula:

PWM period = 1/switching frequency
	   = 1/1MHz
	   = 1000ns

Thus, the PWM backlight period should be 1000ns.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
This commit is contained in:
Jingoo Han 2011-12-08 10:08:38 +09:00 committed by Kukjin Kim
parent d7a4c45ec2
commit de611dd407
1 changed files with 1 additions and 0 deletions
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arch/arm/mach-s5pv210/mach-smdkv210.c
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@ -273,6 +273,7 @@ static struct samsung_bl_gpio_info smdkv210_bl_gpio_info = {
static struct platform_pwm_backlight_data smdkv210_bl_data = {
.pwm_id = 3,
.pwm_period_ns = 1000,
};
static void __init smdkv210_map_io(void)