[PATCH] drm: bridge: fsl-ldb: fixup mode on freq mismatch

Marek Vasut marex at denx.de
Mon Dec 2 12:56:38 UTC 2024


On 12/2/24 7:32 AM, Liu Ying wrote:
> On 11/27/2024, Nikolaus Voss wrote:
>> LDB clock has to be a fixed multiple of the pixel clock.
>> As LDB and pixel clock are derived from different clock sources
>> (at least on imx8mp), this constraint cannot be satisfied for
>> any pixel clock, which leads to flickering and incomplete
>> lines on the attached display.
>>
>> To overcome this, check this condition in mode_fixup() and
>> adapt the pixel clock accordingly.
>>
>> Cc: <stable at vger.kernel.org>
> 
> It looks like stable is not effectively Cc'ed.
> Need a Fixes tag?
Isn't this fix effectively superseded by series

[PATCH 0/5] clk: Fix simple video pipelines on i.MX8

?


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