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LF-1052: arch: arm64: dts: imx8mq: Limit lcdif BW
authorRobert Chiras <robert.chiras@nxp.com>
Wed, 3 Jun 2020 08:52:40 +0000 (11:52 +0300)
committerDong Aisheng <aisheng.dong@nxp.com>
Mon, 14 Dec 2020 03:22:43 +0000 (11:22 +0800)
Limit the maximum allowed bandwidth for LCDIF due to HW limitation in
i.MX8MQ: LCDIF can dcan rive up to 720p60 because of DDR/NoC QoS issue.

Signed-off-by: Robert Chiras <robert.chiras@nxp.com>
arch/arm64/boot/dts/freescale/imx8mq-evk-lcdif-adv7535.dts patch | blob | history

diff --git a/arch/arm64/boot/dts/freescale/imx8mq-evk-lcdif-adv7535.dts b/arch/arm64/boot/dts/freescale/imx8mq-evk-lcdif-adv7535.dts
index 80488b7..be0c758 100644 (file)
--- a/arch/arm64/boot/dts/freescale/imx8mq-evk-lcdif-adv7535.dts
+++ b/arch/arm64/boot/dts/freescale/imx8mq-evk-lcdif-adv7535.dts
@@ -25,7 +25,7 @@
 
 &lcdif {
        status = "okay";
-       max-memory-bandwidth = <314676293>; /* 1280x1024-32@60 */
+       max-memory-bandwidth = <221184000>; /* 1280x720-32@60 */
 
        assigned-clocks = <&clk IMX8MQ_CLK_LCDIF_PIXEL>,
                          <&clk IMX8MQ_VIDEO_PLL1_BYPASS>,