diff mbox series

arm64: dts: imx8mm: Fix boot hang at clk init

Message ID 62d9c73aafcdc171edcd9e03fa81f451a42d5227.1563995813.git.leonard.crestez@nxp.com (mailing list archive)
State Not Applicable, archived
Headers show
Series arm64: dts: imx8mm: Fix boot hang at clk init | expand

Commit Message

Leonard Crestez July 24, 2019, 7:17 p.m. UTC
The assigned-clock-rates property is incorrect (shorter than
assigned-clocks) and boot hangs becuause incorrect rates are assigned.

Fix by inserting another <0>

Fixes: df1703896a17 ("arm64: dts: imx8mm: Init rates and parents configs for clocks")

Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com>
---
Found in next-20190724 because that's when df1703896a17 was included.
Perhaps this should be squashed?

Comments

Abel Vesa July 24, 2019, 8:28 p.m. UTC | #1
On 19-07-24 22:17:15, Leonard Crestez wrote:
> The assigned-clock-rates property is incorrect (shorter than
> assigned-clocks) and boot hangs becuause incorrect rates are assigned.
> 
> Fix by inserting another <0>
> 
> Fixes: df1703896a17 ("arm64: dts: imx8mm: Init rates and parents configs for clocks")
> 
> Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com>
> ---
> Found in next-20190724 because that's when df1703896a17 was included.
> Perhaps this should be squashed?
> 
> diff --git a/arch/arm64/boot/dts/freescale/imx8mm.dtsi b/arch/arm64/boot/dts/freescale/imx8mm.dtsi
> index c9a7c0054c5c..8737f833cf9c 100644
> --- a/arch/arm64/boot/dts/freescale/imx8mm.dtsi
> +++ b/arch/arm64/boot/dts/freescale/imx8mm.dtsi
> @@ -461,10 +461,11 @@
>  						<&clk IMX8MM_SYS_PLL3>,
>  						<&clk IMX8MM_VIDEO_PLL1>;
>  				assigned-clock-parents = <&clk IMX8MM_SYS_PLL3_OUT>,
>  							 <&clk IMX8MM_SYS_PLL1_800M>;
>  				assigned-clock-rates = <0>,
> +							<0>,

In our tree we have this in the clock provider:

	clk_set_rate(clks[IMX8MM_CLK_AUDIO_AHB], 400000000);
	clk_set_rate(clks[IMX8MM_CLK_IPG_AUDIO_ROOT], 400000000);


So I guess instead of the newly added <0> you'll have to put <400000000>
which would be the rate for IMX8MM_CLK_IPG_AUDIO_ROOT.

>  							<400000000>,
>  							<750000000>,
>  							<594000000>;
>  			};
>  
> -- 
> 2.17.1
>
diff mbox series

Patch

diff --git a/arch/arm64/boot/dts/freescale/imx8mm.dtsi b/arch/arm64/boot/dts/freescale/imx8mm.dtsi
index c9a7c0054c5c..8737f833cf9c 100644
--- a/arch/arm64/boot/dts/freescale/imx8mm.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mm.dtsi
@@ -461,10 +461,11 @@ 
 						<&clk IMX8MM_SYS_PLL3>,
 						<&clk IMX8MM_VIDEO_PLL1>;
 				assigned-clock-parents = <&clk IMX8MM_SYS_PLL3_OUT>,
 							 <&clk IMX8MM_SYS_PLL1_800M>;
 				assigned-clock-rates = <0>,
+							<0>,
 							<400000000>,
 							<750000000>,
 							<594000000>;
 			};