[PATCH 3/3] drm/msm: stop storing the array of CRTCs in struct msm_drm_private

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Handling the array of CRTC duplicate the struct msm_drm_private
duplicates a list of CRTCs in the drm_device. Drop it and use the
existing list for CRTC enumeration.

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxx>
---
 drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c  |  2 +-
 drivers/gpu/drm/msm/disp/mdp4/mdp4_kms.c |  2 +-
 drivers/gpu/drm/msm/disp/mdp5/mdp5_kms.c |  2 +-
 drivers/gpu/drm/msm/msm_drv.c            | 27 ++++++++++++------------
 drivers/gpu/drm/msm/msm_drv.h            |  3 +--
 5 files changed, 17 insertions(+), 19 deletions(-)

diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c
index 494978da7785..f89dcb903869 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c
@@ -808,7 +808,7 @@ static int _dpu_kms_drm_obj_init(struct dpu_kms *dpu_kms)
 			ret = PTR_ERR(crtc);
 			return ret;
 		}
-		priv->crtcs[priv->num_crtcs++] = crtc;
+		priv->num_crtcs++;
 	}
 
 	/* All CRTCs are compatible with all encoders */
diff --git a/drivers/gpu/drm/msm/disp/mdp4/mdp4_kms.c b/drivers/gpu/drm/msm/disp/mdp4/mdp4_kms.c
index b7aced272af9..375643a14198 100644
--- a/drivers/gpu/drm/msm/disp/mdp4/mdp4_kms.c
+++ b/drivers/gpu/drm/msm/disp/mdp4/mdp4_kms.c
@@ -335,7 +335,7 @@ static int modeset_init(struct mdp4_kms *mdp4_kms)
 			goto fail;
 		}
 
-		priv->crtcs[priv->num_crtcs++] = crtc;
+		priv->num_crtcs++;
 	}
 
 	/*
diff --git a/drivers/gpu/drm/msm/disp/mdp5/mdp5_kms.c b/drivers/gpu/drm/msm/disp/mdp5/mdp5_kms.c
index 18cf0ff4da6c..35242e76de10 100644
--- a/drivers/gpu/drm/msm/disp/mdp5/mdp5_kms.c
+++ b/drivers/gpu/drm/msm/disp/mdp5/mdp5_kms.c
@@ -495,7 +495,7 @@ static int modeset_init(struct mdp5_kms *mdp5_kms)
 			DRM_DEV_ERROR(dev->dev, "failed to construct crtc %d (%d)\n", i, ret);
 			goto fail;
 		}
-		priv->crtcs[priv->num_crtcs++] = crtc;
+		priv->num_crtcs++;
 	}
 
 	/*
diff --git a/drivers/gpu/drm/msm/msm_drv.c b/drivers/gpu/drm/msm/msm_drv.c
index d2fbe54fec4d..576d346cc860 100644
--- a/drivers/gpu/drm/msm/msm_drv.c
+++ b/drivers/gpu/drm/msm/msm_drv.c
@@ -98,7 +98,7 @@ static void msm_irq_uninstall(struct drm_device *dev)
 
 struct msm_vblank_work {
 	struct work_struct work;
-	int crtc_id;
+	struct drm_crtc *crtc;
 	bool enable;
 	struct msm_drm_private *priv;
 };
@@ -111,15 +111,15 @@ static void vblank_ctrl_worker(struct work_struct *work)
 	struct msm_kms *kms = priv->kms;
 
 	if (vbl_work->enable)
-		kms->funcs->enable_vblank(kms, priv->crtcs[vbl_work->crtc_id]);
+		kms->funcs->enable_vblank(kms, vbl_work->crtc);
 	else
-		kms->funcs->disable_vblank(kms,	priv->crtcs[vbl_work->crtc_id]);
+		kms->funcs->disable_vblank(kms,	vbl_work->crtc);
 
 	kfree(vbl_work);
 }
 
 static int vblank_ctrl_queue_work(struct msm_drm_private *priv,
-					int crtc_id, bool enable)
+					struct drm_crtc *crtc, bool enable)
 {
 	struct msm_vblank_work *vbl_work;
 
@@ -129,7 +129,7 @@ static int vblank_ctrl_queue_work(struct msm_drm_private *priv,
 
 	INIT_WORK(&vbl_work->work, vblank_ctrl_worker);
 
-	vbl_work->crtc_id = crtc_id;
+	vbl_work->crtc = crtc;
 	vbl_work->enable = enable;
 	vbl_work->priv = priv;
 
@@ -303,6 +303,7 @@ static int msm_drm_init(struct device *dev, const struct drm_driver *drv)
 	struct msm_drm_private *priv = dev_get_drvdata(dev);
 	struct drm_device *ddev;
 	struct msm_kms *kms;
+	struct drm_crtc *crtc;
 	int ret, i;
 
 	if (drm_firmware_drivers_only())
@@ -376,12 +377,12 @@ static int msm_drm_init(struct device *dev, const struct drm_driver *drv)
 	ddev->mode_config.funcs = &mode_config_funcs;
 	ddev->mode_config.helper_private = &mode_config_helper_funcs;
 
-	for (i = 0; i < priv->num_crtcs; i++) {
+	drm_for_each_crtc(crtc, ddev) {
 		/* initialize event thread */
-		priv->event_thread[i].crtc_id = priv->crtcs[i]->base.id;
+		priv->event_thread[i].crtc = crtc;
 		priv->event_thread[i].dev = ddev;
 		priv->event_thread[i].worker = kthread_create_worker(0,
-			"crtc_event:%d", priv->event_thread[i].crtc_id);
+			"crtc_event:%d", priv->event_thread[i].crtc->base.id);
 		if (IS_ERR(priv->event_thread[i].worker)) {
 			ret = PTR_ERR(priv->event_thread[i].worker);
 			DRM_DEV_ERROR(dev, "failed to create crtc_event kthread\n");
@@ -517,25 +518,23 @@ static void msm_postclose(struct drm_device *dev, struct drm_file *file)
 int msm_crtc_enable_vblank(struct drm_crtc *crtc)
 {
 	struct drm_device *dev = crtc->dev;
-	unsigned int pipe = crtc->index;
 	struct msm_drm_private *priv = dev->dev_private;
 	struct msm_kms *kms = priv->kms;
 	if (!kms)
 		return -ENXIO;
-	drm_dbg_vbl(dev, "crtc=%u", pipe);
-	return vblank_ctrl_queue_work(priv, pipe, true);
+	drm_dbg_vbl(dev, "crtc=%u", crtc->base.id);
+	return vblank_ctrl_queue_work(priv, crtc, true);
 }
 
 void msm_crtc_disable_vblank(struct drm_crtc *crtc)
 {
 	struct drm_device *dev = crtc->dev;
-	unsigned int pipe = crtc->index;
 	struct msm_drm_private *priv = dev->dev_private;
 	struct msm_kms *kms = priv->kms;
 	if (!kms)
 		return;
-	drm_dbg_vbl(dev, "crtc=%u", pipe);
-	vblank_ctrl_queue_work(priv, pipe, false);
+	drm_dbg_vbl(dev, "crtc=%u", crtc->base.id);
+	vblank_ctrl_queue_work(priv, crtc, false);
 }
 
 /*
diff --git a/drivers/gpu/drm/msm/msm_drv.h b/drivers/gpu/drm/msm/msm_drv.h
index fdbaad53eb84..2ba57c575e13 100644
--- a/drivers/gpu/drm/msm/msm_drv.h
+++ b/drivers/gpu/drm/msm/msm_drv.h
@@ -102,7 +102,7 @@ struct msm_display_topology {
 /* Commit/Event thread specific structure */
 struct msm_drm_thread {
 	struct drm_device *dev;
-	unsigned int crtc_id;
+	struct drm_crtc *crtc;
 	struct kthread_worker *worker;
 };
 
@@ -178,7 +178,6 @@ struct msm_drm_private {
 	struct workqueue_struct *wq;
 
 	unsigned int num_crtcs;
-	struct drm_crtc *crtcs[MAX_CRTCS];
 
 	struct msm_drm_thread event_thread[MAX_CRTCS];
 
-- 
2.35.1




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