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

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Date:   Thu, 24 Jun 2021 20:47:21 -0700
From:   Bjorn Andersson <bjorn.andersson@...aro.org>
To:     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>
Cc:     Lyude Paul <lyude@...hat.com>, linux-arm-msm@...r.kernel.org,
        dri-devel@...ts.freedesktop.org, freedreno@...ts.freedesktop.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH] drm/msm/dp: Add missing drm_device backpointer

'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@...aro.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;
-- 
2.29.2