[PATCH v3 4/6] arm64: dts: freescale: imx8mp-skov: fix LDB clock rate configuration

[Ahmad Fatoum]

When the imx8mp-skov-revb-mi1010ait-1cp1 device tree was first added, it
configured the minimum clock rate supported by the panel instead of
the typical clock rate:

  fsl-ldb 32ec0000.blk-ctrl:bridge@5c: Configured LDB clock
  (482300000 Hz) does not match requested LVDS clock: 490000000 Hz

Besides the warning, the display functioned normally though
This broke with commit ff06ea04e4cf ("clk: imx: clk-imx8mp: Allow
media_disp pixel clock reconfigure parent rate") as the reconfiguration
of the parent clocks removed setting the IMX8MP_VIDEO_PLL1 to 7 times
the display clock rate:

  fsl-ldb 32ec0000.blk-ctrl:bridge@5c: Configured LDB clock
  (70000000 Hz) does not match requested LVDS clock: 490000000 Hz

Fix this by configuring the typical rate instead and benefit from
the new commit by dropping the now unneeded assigned-clock-rates
in &media_blk_ctrl.

Fixes: ff06ea04e4cf ("clk: imx: clk-imx8mp: Allow media_disp pixel clock reconfigure parent rate")
Signed-off-by: Ahmad Fatoum <a.fatoum@xxxxxxxxxxxxxx>
---
 .../dts/freescale/imx8mp-skov-revb-mi1010ait-1cp1.dts | 19 +++++--------------
 1 file changed, 5 insertions(+), 14 deletions(-)

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 30962922b361c9d05887722769c7585eb85b44a0..a13f6d76a495936575ead53e4ea69ed39f80d61c 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
@@ -51,8 +51,11 @@ &lcdif2 {
 };
 
 &lvds_bridge {
-	/* IMX8MP_CLK_MEDIA_LDB = IMX8MP_CLK_MEDIA_DISP2_PIX * 7 */
-	assigned-clock-rates = <482300000>;
+	assigned-clocks = <&clk IMX8MP_CLK_MEDIA_LDB>,
+				 <&clk IMX8MP_VIDEO_PLL1>;
+	assigned-clock-parents = <&clk IMX8MP_VIDEO_PLL1_OUT>;
+	/* IMX8MP_VIDEO_PLL1 = IMX8MP_CLK_MEDIA_DISP2_PIX * 2 * 7 */
+	assigned-clock-rates = <0>, <980000000>;
 	status = "okay";
 
 	ports {
@@ -64,18 +67,6 @@ ldb_lvds_ch0: endpoint {
 	};
 };
 
-&media_blk_ctrl {
-	/* currently it is not possible to let display clocks confugure
-	 * automatically, so we need to set them manually
-	 */
-	assigned-clock-rates = <500000000>, <200000000>, <0>,
-		/* IMX8MP_CLK_MEDIA_DISP2_PIX = pixelclk of lvds panel */
-		<68900000>,
-		<500000000>,
-		/* IMX8MP_VIDEO_PLL1 = IMX8MP_CLK_MEDIA_LDB * 2 */
-		<964600000>;
-};
-
 &pwm4 {
 	status = "okay";
 };

-- 
2.39.5