linux-kernel - Re: [Freedreno] [PATCH] drm/msm/dp: Add missing drm

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Message-ID: <b585ae0c9e2e241f7f0494ae09809392@codeaurora.org>
Date:   Fri, 25 Jun 2021 09:07:54 -0700
From:   abhinavk@...eaurora.org
To:     Bjorn Andersson <bjorn.andersson@...aro.org>
Cc:     Rob Clark <robdclark@...il.com>, Sean Paul <sean@...rly.run>,
        David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>,
        Dave Airlie <airlied@...hat.com>,
        linux-arm-msm@...r.kernel.org, freedreno@...ts.freedesktop.org,
        Lyude Paul <lyude@...hat.com>, linux-kernel@...r.kernel.org,
        dri-devel@...ts.freedesktop.org
Subject: Re: [Freedreno] [PATCH] drm/msm/dp: Add missing drm_device
 backpointer

On 2021-06-24 20:47, 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
mandatory
> 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@...aro.org>
apart from that nit,
Reviewed-by: Abhinav Kumar <abhinavk@...eaurora.org>
> ---
>  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;