sunxi: use 6MHz PLL_VIDEO step for DE2 for higher resolution LCD
DE2 SoCs can support LCDs up to 1080p (e.g. A64), and 3MHz step won't
let PLL_VIDEO be high enough for them.
Use 6MHz step for PLL_VIDEO when using DE2, to satisfy 1080p LCD.
Signed-off-by: Icenowy Zheng <icenowy@aosc.io>
Signed-off-by: Vasily Khoruzhick <anarsoul@gmail.com>
Tested-by: Vasily Khoruzhick <anarsoul@gmail.com>
Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
Acked-by: Jagan Teki <jagan@openedev.com>
diff --git a/arch/arm/mach-sunxi/clock_sun6i.c b/arch/arm/mach-sunxi/clock_sun6i.c
index 82f6f7f..1628f3a 100644
--- a/arch/arm/mach-sunxi/clock_sun6i.c
+++ b/arch/arm/mach-sunxi/clock_sun6i.c
@@ -149,7 +149,11 @@
{
struct sunxi_ccm_reg * const ccm =
(struct sunxi_ccm_reg *)SUNXI_CCM_BASE;
+#ifdef CONFIG_SUNXI_DE2
+ const int m = 4; /* 6 MHz steps to allow higher frequency for DE2 */
+#else
const int m = 8; /* 3 MHz steps just like sun4i, sun5i and sun7i */
+#endif
if (clk == 0) {
clrbits_le32(&ccm->pll3_cfg, CCM_PLL3_CTRL_EN);