Re: [PATCH] drm/msm/dp: Add missing drm_device backpointer

[Lyude Paul]

Ah - must have missed this when I added this. Thanks for the fix!

Reviewed-by: Lyude Paul <lyude@xxxxxxxxxx>

On Thu, 2021-06-24 at 20:47 -0700, Bjorn Andersson wrote:
> '6cba3fe43341 ("drm/dp: Add backpointer to drm_device in drm_dp_aux")'
> introduced a mandator drm_device backpointer in struct drm_dp_aux, but
> missed the msm DP driver. Fix this.
> 
> Fixes: 6cba3fe43341 ("drm/dp: Add backpointer to drm_device in drm_dp_aux")
> Signed-off-by: Bjorn Andersson <bjorn.andersson@xxxxxxxxxx>
> ---
>  drivers/gpu/drm/msm/dp/dp_aux.c     | 3 ++-
>  drivers/gpu/drm/msm/dp/dp_aux.h     | 2 +-
>  drivers/gpu/drm/msm/dp/dp_display.c | 2 +-
>  3 files changed, 4 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/gpu/drm/msm/dp/dp_aux.c
> b/drivers/gpu/drm/msm/dp/dp_aux.c
> index 4a3293b590b0..88659ed200b9 100644
> --- a/drivers/gpu/drm/msm/dp/dp_aux.c
> +++ b/drivers/gpu/drm/msm/dp/dp_aux.c
> @@ -441,7 +441,7 @@ void dp_aux_deinit(struct drm_dp_aux *dp_aux)
>         dp_catalog_aux_enable(aux->catalog, false);
>  }
>  
> -int dp_aux_register(struct drm_dp_aux *dp_aux)
> +int dp_aux_register(struct drm_dp_aux *dp_aux, struct drm_device *drm_dev)
>  {
>         struct dp_aux_private *aux;
>         int ret;
> @@ -455,6 +455,7 @@ int dp_aux_register(struct drm_dp_aux *dp_aux)
>  
>         aux->dp_aux.name = "dpu_dp_aux";
>         aux->dp_aux.dev = aux->dev;
> +       aux->dp_aux.drm_dev = drm_dev;
>         aux->dp_aux.transfer = dp_aux_transfer;
>         ret = drm_dp_aux_register(&aux->dp_aux);
>         if (ret) {
> diff --git a/drivers/gpu/drm/msm/dp/dp_aux.h
> b/drivers/gpu/drm/msm/dp/dp_aux.h
> index 0728cc09c9ec..7ef0d83b483a 100644
> --- a/drivers/gpu/drm/msm/dp/dp_aux.h
> +++ b/drivers/gpu/drm/msm/dp/dp_aux.h
> @@ -9,7 +9,7 @@
>  #include "dp_catalog.h"
>  #include <drm/drm_dp_helper.h>
>  
> -int dp_aux_register(struct drm_dp_aux *dp_aux);
> +int dp_aux_register(struct drm_dp_aux *dp_aux, struct drm_device *drm_dev);
>  void dp_aux_unregister(struct drm_dp_aux *dp_aux);
>  void dp_aux_isr(struct drm_dp_aux *dp_aux);
>  void dp_aux_init(struct drm_dp_aux *dp_aux);
> diff --git a/drivers/gpu/drm/msm/dp/dp_display.c
> b/drivers/gpu/drm/msm/dp/dp_display.c
> index c26562bd85fe..2f0a5c13f251 100644
> --- a/drivers/gpu/drm/msm/dp/dp_display.c
> +++ b/drivers/gpu/drm/msm/dp/dp_display.c
> @@ -259,7 +259,7 @@ static int dp_display_bind(struct device *dev, struct
> device *master,
>                 return rc;
>         }
>  
> -       rc = dp_aux_register(dp->aux);
> +       rc = dp_aux_register(dp->aux, drm);
>         if (rc) {
>                 DRM_ERROR("DRM DP AUX register failed\n");
>                 return rc;

-- 
Cheers,
 Lyude Paul (she/her)
 Software Engineer at Red Hat