[PATCH v2] arm64: dts: imx8mq: Add clock parents for mipi dphy

Shawn Guo shawnguo at kernel.org
Sun Jan 10 19:25:30 EST 2021


On Sun, Jan 10, 2021 at 05:55:51PM +0100, Guido Günther wrote:
> This makes sure the clock tree setup for the dphy is not dependent on
> other components.
> 
> Without this change bringing up the display can fail like
> 
>   kernel: phy phy-30a00300.dphy.2: Invalid CM/CN/CO values: 165/217/1
>   kernel: phy phy-30a00300.dphy.2: for hs_clk/ref_clk=451656000/593999998 ~ 165/217
> 
> if LCDIF doesn't set up that part of the clock tree first. This was
> noticed when testing the Librem 5 devkit with defconfig. It doesn't
> happen when modules are built in.
> 
> Signed-off-by: Guido Günther <agx at sigxcpu.org>

Applied, thanks.



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