ARM: dts: Update display clock frequency for Origen-4210
authorTushar Behera <tushar.behera@linaro.org>
Wed, 11 Dec 2013 22:45:07 +0000 (07:45 +0900)
committerKukjin Kim <kgene.kim@samsung.com>
Sun, 15 Dec 2013 19:41:56 +0000 (04:41 +0900)
As per the timing information for supported panel, the value should
be between 47.2 MHz to 47.9 MHz for 60Hz refresh rate.

Total horizontal pixels = 1024 (x-res) + 80 (margin) + 48 (hsync) = 1152
Total vertical pixels = 600 (y-res) + 80 (margin) + 3 (vsync) = 683

Target pixel clock rate for refresh rate @60 Hz
= 1152 * 683 * 60 = 47208960 Hz ~ 47.5 MHz

Signed-off-by: Tushar Behera <tushar.behera@linaro.org>
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
arch/arm/boot/dts/exynos4210-origen.dts

index 1a12fb23767c522be3f6af9311a858d93750846a..2aa13cb3bbed00053c910ddae2246ebf426cdd29 100644 (file)
        display-timings {
                native-mode = <&timing0>;
                timing0: timing {
-                       clock-frequency = <50000>;
+                       clock-frequency = <47500000>;
                        hactive = <1024>;
                        vactive = <600>;
                        hfront-porch = <64>;