[PATCH 1/8] arm64: dts: imx8mp-skov-revb-mi1010ait-1cp1: Add panel-timing node to panel node

[Liu Ying]

Add a panel-timing node to panel node to override any fixed display
modes written in a panel driver.  This way, 68.9MHz clock frequency
specified in panel-timing node may accommodate 7-fold 482.3MHz
"media_ldb" clock which is derived from 964.6MHz "video_pll1" clock.
The above clock frequencies align to the clock rates assigned in the
lvds_bridge node and media_blk_ctrl node in this DT file.

This should be able to suppress this LDB driver warning:
[   17.206644] fsl-ldb 32ec0000.blk-ctrl:bridge@5c: Configured LDB clock 
(70000000 Hz) does not match requested LVDS clock: 490000000 Hz

This also makes the display mode used by the panel pass mode validation
against pixel clock rate and "media_ldb" clock rate in a certain display
driver.

Fixes: 6d382d51d979 ("arm64: dts: freescale: Add SKOV IMX8MP CPU revB board")
Signed-off-by: Liu Ying <victor....@nxp.com>
---
 .../freescale/imx8mp-skov-revb-mi1010ait-1cp1.dts | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/arch/arm64/boot/dts/freescale/imx8mp-skov-revb-mi1010ait-1cp1.dts 
b/arch/arm64/boot/dts/freescale/imx8mp-skov-revb-mi1010ait-1cp1.dts
index 3c2efdc59bfa..4e9f76de7462 100644
--- a/arch/arm64/boot/dts/freescale/imx8mp-skov-revb-mi1010ait-1cp1.dts
+++ b/arch/arm64/boot/dts/freescale/imx8mp-skov-revb-mi1010ait-1cp1.dts
@@ -13,6 +13,21 @@ panel {
                backlight = <&backlight>;
                power-supply = <&reg_tft_vcom>;
 
+               panel-timing {
+                       clock-frequency = <68900000>;
+                       hactive = <1280>;
+                       vactive = <800>;
+                       hfront-porch = <30>;
+                       hback-porch = <30>;
+                       hsync-len = <10>;
+                       vfront-porch = <5>;
+                       vback-porch = <5>;
+                       vsync-len = <5>;
+                       hsync-active = <0>;
+                       vsync-active = <0>;
+                       de-active = <1>;
+               };
+
                port {
                        in_lvds0: endpoint {
                                remote-endpoint = <&ldb_lvds_ch0>;
-- 
2.34.1