[ARM] tegra: stingray: change display EMC clock rate

With the nVidia recommended clock rates of 300, 150,
and 50, the current value (400000000 internal rate or
200 MHz external clock rate) will round up to full speed
rather than use the intended middle rate(300000000 or
150 MHz external memory).

This saves 10 mA at the battery, when the display is
on but during low work loads.

Change-Id: I291d758166a0e3747163c1831933da01fadb8e69
Signed-off-by: James Wylder <james.wylder@motorola.com>

diff --git a/arch/arm/mach-tegra/board-stingray-panel.c b/arch/arm/mach-tegra/board-stingray-panel.c
index 4720129691f29e615bdbe3ac4b629470e4cb22f4..bf06c700b634cf66e2668c8bc3f9dc176ca9ec3e 100644 (file)
--- a/arch/arm/mach-tegra/board-stingray-panel.c
+++ b/arch/arm/mach-tegra/board-stingray-panel.c
@@ -331,7 +331,7 @@ static struct tegra_dc_out stingray_disp1_out = {
 
 static struct tegra_dc_platform_data stingray_disp1_pdata = {
        .flags          = TEGRA_DC_FLAG_ENABLED,
-       .emc_clk_rate   = 400000000,
+       .emc_clk_rate   = 300000000,
        .default_out    = &stingray_disp1_out,
        .fb             = &stingray_fb_data,
 };