Re: [PATCHv1] ARM: dts/imx6q-bx50v3: Set display interface clock parents

[Shawn Guo]

On Thu, May 14, 2020 at 07:02:37PM +0200, Sebastian Reichel wrote:
> From: Robert Beckett <bob.beckett@xxxxxxxxxxxxx>
> 
> Avoid LDB and IPU DI clocks both using the same parent. LDB requires
> pasthrough clock to avoid breaking timing while IPU DI does not.
> 
> Force IPU DI clocks to use IMX6QDL_CLK_PLL2_PFD0_352M as parent
> and LDB to use IMX6QDL_CLK_PLL5_VIDEO_DIV.
> 
> This fixes an issue where attempting atomic modeset while using
> HDMI and display port at the same time causes LDB clock programming
> to destroy the programming of HDMI that was done during the same
> modeset.
> 
> Cc: stable@xxxxxxxxxxxxxxx
> Signed-off-by: Robert Beckett <bob.beckett@xxxxxxxxxxxxx>
> [Use IMX6QDL_CLK_PLL2_PFD0_352M instead of IMX6QDL_CLK_PLL2_PFD2_396M
>  originally chosen by Robert Beckett to avoid affecting eMMC clock
>  by DRM atomic updates]
> Signed-off-by: Ian Ray <ian.ray@xxxxxx>
> [Squash Robert's and Ian's commits for bisectability, update patch
>  description and add stable tag]
> Signed-off-by: Sebastian Reichel <sebastian.reichel@xxxxxxxxxxxxx>

Applied, thanks.