On Tue, 19 Apr 2022 at 03:07, Liu Ying <[email protected]> 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]>
> ---
> v7->v8:
> * Resend with Andrzej's and Jernej's mail addressed updated.
>
> 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
>
Acked-by: Robert Foss <[email protected]>