[PATCH v6 06/17] drm/msm/dsi/phy: Toggle back buffer resync after preparing PLL

Krzysztof Kozlowski krzysztof.kozlowski at linaro.org
Wed Aug 13 18:25:59 UTC 2025


On 10/06/2025 16:05, Krzysztof Kozlowski wrote:
> According to Hardware Programming Guide for DSI PHY, the retime buffer
> resync should be done after PLL clock users (byte_clk and intf_byte_clk)
> are enabled.  Downstream also does it as part of configuring the PLL.
> 
> Driver was only turning off the resync FIFO buffer, but never bringing it
> on again.
> 
> Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov at oss.qualcomm.com>
> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski at linaro.org>
> ---


BTW, this and two other fixes from this thread were for some reason not
picked up.

One fix got comments, but it does not stop rest of the fixes,
considering they were reviewed.

Best regards,
Krzysztof


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