On 2019-07-26 11:49, Guido Günther wrote:
> The bridge might have special requirmentes on the input bus. This
> is e.g. used by the imx-nwl bridge.
> 
> Signed-off-by: Guido Günther <a...@sigxcpu.org>

Looks good to me.

Reviewed-by: Stefan Agner <ste...@agner.ch>


That is similar to what I sent for the imx DRM driver:

https://lkml.org/lkml/2018/9/12/913

I probably should follow up on that patchset.

--
Stefan

> ---
>  drivers/gpu/drm/mxsfb/mxsfb_crtc.c | 5 ++++-
>  1 file changed, 4 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/mxsfb/mxsfb_crtc.c
> b/drivers/gpu/drm/mxsfb/mxsfb_crtc.c
> index e84bac3a541d..3b8eb3ac13b6 100644
> --- a/drivers/gpu/drm/mxsfb/mxsfb_crtc.c
> +++ b/drivers/gpu/drm/mxsfb/mxsfb_crtc.c
> @@ -215,7 +215,7 @@ static void mxsfb_crtc_mode_set_nofb(struct
> mxsfb_drm_private *mxsfb)
>  {
>       struct drm_device *drm = mxsfb->pipe.crtc.dev;
>       struct drm_display_mode *m = &mxsfb->pipe.crtc.state->adjusted_mode;
> -     const u32 bus_flags = mxsfb->connector->display_info.bus_flags;
> +     u32 bus_flags = mxsfb->connector->display_info.bus_flags;
>       u32 vdctrl0, vsync_pulse_len, hsync_pulse_len;
>       int err;
>  
> @@ -239,6 +239,9 @@ static void mxsfb_crtc_mode_set_nofb(struct
> mxsfb_drm_private *mxsfb)
>  
>       clk_set_rate(mxsfb->clk, m->crtc_clock * 1000);
>  
> +     if (mxsfb->bridge && mxsfb->bridge->timings)
> +             bus_flags = mxsfb->bridge->timings->input_bus_flags;
> +
>       DRM_DEV_DEBUG_DRIVER(drm->dev, "Pixel clock: %dkHz (actual: %dkHz)\n",
>                            m->crtc_clock,
>                            (int)(clk_get_rate(mxsfb->clk) / 1000));
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