arm64: dts: imx8mm: Simplify mipi_dsi clocks

The device tree clock structure for the mipi_dsi is
unnecessarily redundant.

The default clock parent of IMX8MM_CLK_DSI_PHY_REF is
already IMX8MM_CLK_24M, so there is no need to set the
parent-child relationship between them.  The default clock
rates for IMX8MM_SYS_PLL1_266M and IMX8MM_CLK_24M are
already defined to be 266MHz and 24MHz respectively,
so there is no need to define those clock rates.

On i.MX8M[MNP] the  samsung,pll-clock-frequency is not
necessary, because the driver will read it from sclk_mipi
which is also already set to 24MHz making it also
redundant.

Signed-off-by: Adam Ford <aford173@gmail.com>
Reviewed-by: Frieder Schrempf <frieder.schrempf@kontron.de>
Tested-by: Frieder Schrempf <frieder.schrempf@kontron.de> # Kontron BL i.MX8MM
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

diff --git a/arch/arm64/boot/dts/freescale/imx8mm.dtsi b/arch/arm64/boot/dts/freescale/imx8mm.dtsi
index e76fc9f..62b4190 100644 (file)
--- a/arch/arm64/boot/dts/freescale/imx8mm.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mm.dtsi
@@ -1153,12 +1153,8 @@
                                clocks = <&clk IMX8MM_CLK_DSI_CORE>,
                                         <&clk IMX8MM_CLK_DSI_PHY_REF>;
                                clock-names = "bus_clk", "sclk_mipi";
-                               assigned-clocks = <&clk IMX8MM_CLK_DSI_CORE>,
-                                                 <&clk IMX8MM_CLK_DSI_PHY_REF>;
-                               assigned-clock-parents = <&clk IMX8MM_SYS_PLL1_266M>,
-                                                        <&clk IMX8MM_CLK_24M>;
-                               assigned-clock-rates = <266000000>, <24000000>;
-                               samsung,pll-clock-frequency = <24000000>;
+                               assigned-clocks = <&clk IMX8MM_CLK_DSI_CORE>;
+                               assigned-clock-parents = <&clk IMX8MM_SYS_PLL1_266M>;
                                interrupts = <GIC_SPI 18 IRQ_TYPE_LEVEL_HIGH>;
                                power-domains = <&disp_blk_ctrl IMX8MM_DISPBLK_PD_MIPI_DSI>;
                                status = "disabled";