From: Randy Li <randy.li@rock-chips.com>
Date: Wed, 30 Nov 2016 03:21:51 +0000 (+0800)
Subject: ARM: dts: rockchip: rk3288 hevc using same clk freqs as android
X-Git-Tag: firefly_0821_release~1151
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=90a43a889a2c1fc2eaf8a05dfdcc801f9c8b0dce;p=firefly-linux-kernel-4.4.55.git

ARM: dts: rockchip: rk3288 hevc using same clk freqs as android

If you meet a performance issue, I would suggest you to set
500MHZ for ACLK_HEVC at rk3288. It could solve the decoding quite
slow for some video resources.

Change-Id: Iedc2bc90fb13ae89d204dc6b5f5d897acae6812d
Signed-off-by: Randy Li <randy.li@rock-chips.com>
---

diff --git a/arch/arm/boot/dts/rk3288.dtsi b/arch/arm/boot/dts/rk3288.dtsi
index 131759906f0a..d23c920fe7b6 100644
--- a/arch/arm/boot/dts/rk3288.dtsi
+++ b/arch/arm/boot/dts/rk3288.dtsi
@@ -1193,6 +1193,16 @@
 			<&cru SCLK_HEVC_CABAC>;
 		clock-names = "aclk_vcodec", "hclk_vcodec", "clk_core",
 			"clk_cabac";
+		/*
+		 * The 4K hevc would also work well with 500/125/300/300,
+		 * no more err irq and reset request.
+		 */
+		assigned-clocks = <&cru ACLK_HEVC>, <&cru HCLK_HEVC>,
+				  <&cru SCLK_HEVC_CORE>,
+				  <&cru SCLK_HEVC_CABAC>;
+		assigned-clock-rates = <400000000>, <100000000>,
+				       <300000000>, <300000000>;
+
 		resets = <&cru SRST_HEVC>;
 		reset-names = "video";
 		power-domains = <&power RK3288_PD_HEVC>;