ENGR00222197 MX6 SabreSD:Set pwm backlight max density to 248

This patch changes pwm backlight max density from 255 to 248
to workaround Hannstar LVDS panel unstable backlight issue
when density is set to 250 or 251.

Signed-off-by: Liu Ying <Ying.Liu@freescale.com>
(cherry picked from commit 8747626ca0bcdb6c9525e28d3fbb170db462a299)

diff --git a/arch/arm/mach-mx6/board-mx6q_sabresd.c b/arch/arm/mach-mx6/board-mx6q_sabresd.c
index 59ea80c9892a7f8cd5bd1ebb08253e710f14a102..e198617f4227671d43e24bc9e76fdc78a127bb2e 100644 (file)
--- a/arch/arm/mach-mx6/board-mx6q_sabresd.c
+++ b/arch/arm/mach-mx6/board-mx6q_sabresd.c
@@ -1575,7 +1575,7 @@ static void __init imx6q_add_device_buttons(void) {}
 
 static struct platform_pwm_backlight_data mx6_sabresd_pwm_backlight_data = {
        .pwm_id = 0,
-       .max_brightness = 255,
+       .max_brightness = 248,
        .dft_brightness = 128,
        .pwm_period_ns = 50000,
 };