There are a few clocks whose parents are set in mipi_dsi
and mxsfb nodes, but these clocks are used by the disp_blk_ctrl
power domain which may cause an issue when re-parenting, resuling
in a disp_pixel clock having the wrong parent and wrong rate.
Fix this by moving the assigned-clock-parents as associate clock
assignments to the power-domain node to setup these clocks before
they are enabled.
Fixes: d825fb6455d5 ("arm64: dts: imx8mn: Add display pipeline components")
Signed-off-by: Adam Ford <aford...@gmail.com>
---
arch/arm64/boot/dts/freescale/imx8mn.dtsi | 28 ++++++++++++-----------
1 file changed, 15 insertions(+), 13 deletions(-)
diff --git a/arch/arm64/boot/dts/freescale/imx8mn.dtsi
b/arch/arm64/boot/dts/freescale/imx8mn.dtsi
index bd84db550053..8be8f090e8b8 100644
--- a/arch/arm64/boot/dts/freescale/imx8mn.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mn.dtsi
@@ -1069,13 +1069,6 @@ lcdif: lcdif@32e00000 {
<&clk IMX8MN_CLK_DISP_APB_ROOT>,
<&clk IMX8MN_CLK_DISP_AXI_ROOT>;
clock-names = "pix", "axi", "disp_axi";
- assigned-clocks = <&clk
IMX8MN_CLK_DISP_PIXEL_ROOT>,
- <&clk IMX8MN_CLK_DISP_AXI>,
- <&clk IMX8MN_CLK_DISP_APB>;
- assigned-clock-parents = <&clk
IMX8MN_CLK_DISP_PIXEL>,
- <&clk
IMX8MN_SYS_PLL2_1000M>,
- <&clk
IMX8MN_SYS_PLL1_800M>;
- assigned-clock-rates = <594000000>,
<500000000>, <200000000>;
interrupts = <GIC_SPI 5 IRQ_TYPE_LEVEL_HIGH>;
power-domains = <&disp_blk_ctrl
IMX8MN_DISPBLK_PD_LCDIF>;
status = "disabled";
@@ -1093,12 +1086,6 @@ mipi_dsi: dsi@32e10000 {
clocks = <&clk IMX8MN_CLK_DSI_CORE>,
<&clk IMX8MN_CLK_DSI_PHY_REF>;
clock-names = "bus_clk", "sclk_mipi";
- assigned-clocks = <&clk IMX8MN_CLK_DSI_CORE>,
- <&clk IMX8MN_CLK_DSI_PHY_REF>;
- assigned-clock-parents = <&clk
IMX8MN_SYS_PLL1_266M>,
- <&clk IMX8MN_CLK_24M>;
- assigned-clock-rates = <266000000>, <24000000>;
- samsung,pll-clock-frequency = <24000000>;
interrupts = <GIC_SPI 18 IRQ_TYPE_LEVEL_HIGH>;
power-domains = <&disp_blk_ctrl
IMX8MN_DISPBLK_PD_MIPI_DSI>;
status = "disabled";
@@ -1142,6 +1129,21 @@ disp_blk_ctrl: blk-ctrl@32e28000 {
"lcdif-axi", "lcdif-apb",
"lcdif-pix",
"dsi-pclk", "dsi-ref",
"csi-aclk", "csi-pclk";
+ assigned-clocks = <&clk IMX8MN_CLK_DSI_CORE>,
+ <&clk IMX8MN_CLK_DSI_PHY_REF>,
+ <&clk IMX8MN_CLK_DISP_PIXEL>,
+ <&clk IMX8MN_CLK_DISP_AXI>,
+ <&clk IMX8MN_CLK_DISP_APB>;
+ assigned-clock-parents = <&clk
IMX8MN_SYS_PLL1_266M>,
+ <&clk IMX8MN_CLK_24M>,
+ <&clk
IMX8MN_VIDEO_PLL1_OUT>,
+ <&clk
IMX8MN_SYS_PLL2_1000M>,
+ <&clk
IMX8MN_SYS_PLL1_800M>;
+ assigned-clock-rates = <266000000>,
+ <24000000>,
+ <594000000>,
+ <500000000>,
+ <200000000>;
#power-domain-cells = <1>;
};
--
2.39.2
