[PATCH v5 14/24] drm/msm/dsi/phy: Toggle back buffer resync after preparing PLL

Dmitry Baryshkov dmitry.baryshkov at oss.qualcomm.com
Fri May 2 22:43:27 UTC 2025


On Wed, Apr 30, 2025 at 03:00:44PM +0200, 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 of the resync FIFO buffer, but never bringing it
> on again.
> 
> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski at linaro.org>
> 
> ---
> 
> Changes in v5:
> 1. New patch
> ---
>  drivers/gpu/drm/msm/dsi/phy/dsi_phy_7nm.c | 4 ++++
>  1 file changed, 4 insertions(+)
> 

Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov at oss.qualcomm.com>

-- 
With best wishes
Dmitry


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