Hi,
On Thu, Apr 14, 2022 at 02:48:54PM +0800, Liu Ying wrote:
> The Northwest Logic MIPI DSI host controller embedded in i.MX8qxp
> works with a Mixel MIPI DPHY + LVDS PHY combo to support either
> a MIPI DSI display or a LVDS display.  So, this patch calls
> phy_set_mode() from nwl_dsi_mode_set() to set PHY mode to MIPI DPHY
> explicitly.
> 
> Cc: Guido Günther <[email protected]>
> Cc: Robert Chiras <[email protected]>
> Cc: Martin Kepplinger <[email protected]>
> Cc: Andrzej Hajda <[email protected]>
> Cc: Neil Armstrong <[email protected]>
> Cc: Laurent Pinchart <[email protected]>
> Cc: Jonas Karlman <[email protected]>
> Cc: Jernej Skrabec <[email protected]>
> Cc: David Airlie <[email protected]>
> Cc: Daniel Vetter <[email protected]>
> Cc: NXP Linux Team <[email protected]>
> Signed-off-by: Liu Ying <[email protected]>
> ---
> v6->v7:
> * No change.
> 
> v5->v6:
> * Rebase the series upon v5.17-rc1.
> * Set PHY mode in ->mode_set() instead of ->pre_enable() in the nwl-dsi
>   bridge driver due to the rebase.
> * Drop Guido's R-b tag due to the rebase.
> 
> v4->v5:
> * No change.
> 
> v3->v4:
> * No change.
> 
> v2->v3:
> * No change.
> 
> v1->v2:
> * Add Guido's R-b tag.
> 
>  drivers/gpu/drm/bridge/nwl-dsi.c | 6 ++++++
>  1 file changed, 6 insertions(+)
> 
> diff --git a/drivers/gpu/drm/bridge/nwl-dsi.c 
> b/drivers/gpu/drm/bridge/nwl-dsi.c
> index d5945501a5ee..85bab7372af1 100644
> --- a/drivers/gpu/drm/bridge/nwl-dsi.c
> +++ b/drivers/gpu/drm/bridge/nwl-dsi.c
> @@ -666,6 +666,12 @@ static int nwl_dsi_mode_set(struct nwl_dsi *dsi)
>               return ret;
>       }
>  
> +     ret = phy_set_mode(dsi->phy, PHY_MODE_MIPI_DPHY);
> +     if (ret < 0) {
> +             DRM_DEV_ERROR(dev, "Failed to set DSI phy mode: %d\n", ret);
> +             goto uninit_phy;
> +     }
> +
>       ret = phy_configure(dsi->phy, phy_cfg);
>       if (ret < 0) {
>               DRM_DEV_ERROR(dev, "Failed to configure DSI phy: %d\n", ret);
> -- 
> 2.25.1
> 

Reviewed-by: Guido Günther <[email protected]>

Cheers,
 -- Guido

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