On Fri, Mar 22, 2024 at 12:47:05PM -0400, Frank Li wrote:
> The actual clock show wrong frequency:
>
> echo on >/sys/devices/platform/bus\@5b000000/5b010000.mmc/power/control
> cat /sys/kernel/debug/mmc0/ios
>
> clock: 200000000 Hz
> actual clock: 166000000 Hz
> ^^^^^^^^^
> .....
>
> According to
>
> sdhc0_lpcg: clock-controller@5b200000 {
> compatible = "fsl,imx8qxp-lpcg";
> reg = <0x5b200000 0x10000>;
> #clock-cells = <1>;
> clocks = <&clk IMX_SC_R_SDHC_0 IMX_SC_PM_CLK_PER>,
> <&conn_ipg_clk>, <&conn_axi_clk>;
> clock-indices = <IMX_LPCG_CLK_0>, <IMX_LPCG_CLK_4>,
> <IMX_LPCG_CLK_5>;
> clock-output-names = "sdhc0_lpcg_per_clk",
> "sdhc0_lpcg_ipg_clk",
> "sdhc0_lpcg_ahb_clk";
> power-domains = <&pd IMX_SC_R_SDHC_0>;
> }
>
> "per_clk" should be IMX_LPCG_CLK_0 instead of IMX_LPCG_CLK_5.
>
> After correct clocks order:
>
> echo on >/sys/devices/platform/bus\@5b000000/5b010000.mmc/power/control
> cat /sys/kernel/debug/mmc0/ios
>
> clock: 200000000 Hz
> actual clock: 198000000 Hz
> ^^^^^^^^
> ...
>
> Fixes: 16c4ea7501b1 ("arm64: dts: imx8: switch to new lpcg clock binding")
> Signed-off-by: Frank Li <Frank.Li@xxxxxxx>
Applied, thanks!
