linux-kernel - [PATCH v2 02/11] drm/msm: move helper calls to msm

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Message-Id: <20250503-msm-gpu-split-v2-2-1292cba0f5ad@oss.qualcomm.com>
Date: Sat, 03 May 2025 10:17:01 +0300
From: Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>
To: Rob Clark <robdclark@...il.com>, Abhinav Kumar <quic_abhinavk@...cinc.com>,
        Dmitry Baryshkov <lumag@...nel.org>, Sean Paul <sean@...rly.run>,
        Marijn Suijten <marijn.suijten@...ainline.org>,
        David Airlie <airlied@...il.com>, Simona Vetter <simona@...ll.ch>,
        Konrad Dybcio <konradybcio@...nel.org>
Cc: linux-arm-msm@...r.kernel.org, dri-devel@...ts.freedesktop.org,
        freedreno@...ts.freedesktop.org, linux-kernel@...r.kernel.org
Subject: [PATCH v2 02/11] drm/msm: move helper calls to msm_kms.c

Extract two more KMS-related codepieces to msm_kms.c, removing last
pieces of KMS code from msm_drv.c.

Reviewed-by: Abhinav Kumar <quic_abhinavk@...cinc.com>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>
---
 drivers/gpu/drm/msm/msm_drv.c |  9 +++------
 drivers/gpu/drm/msm/msm_kms.c | 20 ++++++++++++++++++++
 drivers/gpu/drm/msm/msm_kms.h |  2 ++
 3 files changed, 25 insertions(+), 6 deletions(-)

diff --git a/drivers/gpu/drm/msm/msm_drv.c b/drivers/gpu/drm/msm/msm_drv.c
index 78cea9d4999488648b4131a2da425fb349d1b664..2c6997c85fbbc3767315ca3a166a99b322f1218a 100644
--- a/drivers/gpu/drm/msm/msm_drv.c
+++ b/drivers/gpu/drm/msm/msm_drv.c
@@ -11,7 +11,6 @@
 #include <linux/of_address.h>
 #include <linux/uaccess.h>
 
-#include <drm/clients/drm_client_setup.h>
 #include <drm/drm_drv.h>
 #include <drm/drm_file.h>
 #include <drm/drm_ioctl.h>
@@ -79,7 +78,7 @@ static int msm_drm_uninit(struct device *dev)
 	if (ddev->registered) {
 		drm_dev_unregister(ddev);
 		if (priv->kms)
-			drm_atomic_helper_shutdown(ddev);
+			msm_drm_kms_unregister(dev);
 	}
 
 	msm_gem_shrinker_cleanup(ddev);
@@ -275,10 +274,8 @@ static int msm_drm_init(struct device *dev, const struct drm_driver *drv)
 	if (ret)
 		goto err_msm_uninit;
 
-	if (priv->kms_init) {
-		drm_kms_helper_poll_init(ddev);
-		drm_client_setup(ddev, NULL);
-	}
+	if (priv->kms_init)
+		msm_drm_kms_post_init(dev);
 
 	return 0;
 
diff --git a/drivers/gpu/drm/msm/msm_kms.c b/drivers/gpu/drm/msm/msm_kms.c
index 184a4503fef0deff7234a3ce332e0bf564fbce46..49a56873100b2fdcded3eb6adcc7032bf404212c 100644
--- a/drivers/gpu/drm/msm/msm_kms.c
+++ b/drivers/gpu/drm/msm/msm_kms.c
@@ -13,6 +13,7 @@
 #include <drm/drm_drv.h>
 #include <drm/drm_mode_config.h>
 #include <drm/drm_vblank.h>
+#include <drm/clients/drm_client_setup.h>
 
 #include "disp/msm_disp_snapshot.h"
 #include "msm_drv.h"
@@ -217,6 +218,15 @@ struct msm_gem_address_space *msm_kms_init_aspace(struct drm_device *dev)
 	return aspace;
 }
 
+void msm_drm_kms_unregister(struct device *dev)
+{
+	struct platform_device *pdev = to_platform_device(dev);
+	struct msm_drm_private *priv = platform_get_drvdata(pdev);
+	struct drm_device *ddev = priv->dev;
+
+	drm_atomic_helper_shutdown(ddev);
+}
+
 void msm_drm_kms_uninit(struct device *dev)
 {
 	struct platform_device *pdev = to_platform_device(dev);
@@ -366,3 +376,13 @@ void msm_kms_shutdown(struct platform_device *pdev)
 	if (drm && drm->registered && priv->kms)
 		drm_atomic_helper_shutdown(drm);
 }
+
+void msm_drm_kms_post_init(struct device *dev)
+{
+	struct platform_device *pdev = to_platform_device(dev);
+	struct msm_drm_private *priv = platform_get_drvdata(pdev);
+	struct drm_device *ddev = priv->dev;
+
+	drm_kms_helper_poll_init(ddev);
+	drm_client_setup(ddev, NULL);
+}
diff --git a/drivers/gpu/drm/msm/msm_kms.h b/drivers/gpu/drm/msm/msm_kms.h
index e52649bbee7dc6a80abfecf7f8d5bcfad3d8f60b..26cbb662e7533fdfd55fb7f200b99c79c3fd3211 100644
--- a/drivers/gpu/drm/msm/msm_kms.h
+++ b/drivers/gpu/drm/msm/msm_kms.h
@@ -200,6 +200,8 @@ static inline void msm_kms_destroy(struct msm_kms *kms)
 		for_each_if (drm_crtc_mask(crtc) & (crtc_mask))
 
 int msm_drm_kms_init(struct device *dev, const struct drm_driver *drv);
+void msm_drm_kms_post_init(struct device *dev);
+void msm_drm_kms_unregister(struct device *dev);
 void msm_drm_kms_uninit(struct device *dev);
 
 #endif /* __MSM_KMS_H__ */

-- 
2.39.5