[PATCH 37/39] drm: renesas: shmobile: Remove internal CRTC state tracking

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Now the suspend/resume methods no longer need to look at internal driver
state, the dpms and started fields in the shmob_drm_crtc structure can
be removed, as well as the shmob_drm_crtc_dpms() wrapper.

Signed-off-by: Geert Uytterhoeven <geert+renesas@xxxxxxxxx>
---
 .../gpu/drm/renesas/shmobile/shmob_drm_crtc.c | 35 ++++---------------
 .../gpu/drm/renesas/shmobile/shmob_drm_crtc.h |  3 --
 2 files changed, 6 insertions(+), 32 deletions(-)

diff --git a/drivers/gpu/drm/renesas/shmobile/shmob_drm_crtc.c b/drivers/gpu/drm/renesas/shmobile/shmob_drm_crtc.c
index b11bb666de3bac46..f2332bb0fbbd51a1 100644
--- a/drivers/gpu/drm/renesas/shmobile/shmob_drm_crtc.c
+++ b/drivers/gpu/drm/renesas/shmobile/shmob_drm_crtc.c
@@ -196,9 +196,6 @@ static void shmob_drm_crtc_start(struct shmob_drm_crtc *scrtc)
 	u32 value;
 	int ret;
 
-	if (scrtc->started)
-		return;
-
 	ret = pm_runtime_resume_and_get(dev);
 	if (ret)
 		return;
@@ -252,8 +249,6 @@ static void shmob_drm_crtc_start(struct shmob_drm_crtc *scrtc)
 
 	/* Turn vertical blank interrupt reporting back on. */
 	drm_crtc_vblank_on(crtc);
-
-	scrtc->started = true;
 }
 
 /* -----------------------------------------------------------------------------
@@ -314,9 +309,6 @@ static void shmob_drm_crtc_stop(struct shmob_drm_crtc *scrtc)
 	struct drm_crtc *crtc = &scrtc->base;
 	struct shmob_drm_device *sdev = to_shmob_device(crtc->dev);
 
-	if (!scrtc->started)
-		return;
-
 	/*
 	 * Disable vertical blank interrupt reporting.  We first need to wait
 	 * for page flip completion before stopping the CRTC as userspace
@@ -335,8 +327,6 @@ static void shmob_drm_crtc_stop(struct shmob_drm_crtc *scrtc)
 	shmob_drm_clk_off(sdev);
 
 	pm_runtime_put(sdev->dev);
-
-	scrtc->started = false;
 }
 
 static inline struct shmob_drm_crtc *to_shmob_crtc(struct drm_crtc *crtc)
@@ -344,21 +334,6 @@ static inline struct shmob_drm_crtc *to_shmob_crtc(struct drm_crtc *crtc)
 	return container_of(crtc, struct shmob_drm_crtc, base);
 }
 
-static void shmob_drm_crtc_dpms(struct drm_crtc *crtc, int mode)
-{
-	struct shmob_drm_crtc *scrtc = to_shmob_crtc(crtc);
-
-	if (scrtc->dpms == mode)
-		return;
-
-	if (mode == DRM_MODE_DPMS_ON)
-		shmob_drm_crtc_start(scrtc);
-	else
-		shmob_drm_crtc_stop(scrtc);
-
-	scrtc->dpms = mode;
-}
-
 static void shmob_drm_crtc_atomic_flush(struct drm_crtc *crtc,
 					struct drm_atomic_state *state)
 {
@@ -378,13 +353,17 @@ static void shmob_drm_crtc_atomic_flush(struct drm_crtc *crtc,
 static void shmob_drm_crtc_atomic_enable(struct drm_crtc *crtc,
 					 struct drm_atomic_state *state)
 {
-	shmob_drm_crtc_dpms(crtc, DRM_MODE_DPMS_ON);
+	struct shmob_drm_crtc *scrtc = to_shmob_crtc(crtc);
+
+	shmob_drm_crtc_start(scrtc);
 }
 
 static void shmob_drm_crtc_atomic_disable(struct drm_crtc *crtc,
 					  struct drm_atomic_state *state)
 {
-	shmob_drm_crtc_dpms(crtc, DRM_MODE_DPMS_OFF);
+	struct shmob_drm_crtc *scrtc = to_shmob_crtc(crtc);
+
+	shmob_drm_crtc_stop(scrtc);
 }
 
 static const struct drm_crtc_helper_funcs crtc_helper_funcs = {
@@ -476,8 +455,6 @@ int shmob_drm_crtc_create(struct shmob_drm_device *sdev)
 
 	init_waitqueue_head(&sdev->crtc.flip_wait);
 
-	sdev->crtc.dpms = DRM_MODE_DPMS_OFF;
-
 	primary = shmob_drm_plane_create(sdev, 0);
 	if (IS_ERR(primary))
 		return PTR_ERR(primary);
diff --git a/drivers/gpu/drm/renesas/shmobile/shmob_drm_crtc.h b/drivers/gpu/drm/renesas/shmobile/shmob_drm_crtc.h
index 37380c815f1f5a08..89a0746f9a35807d 100644
--- a/drivers/gpu/drm/renesas/shmobile/shmob_drm_crtc.h
+++ b/drivers/gpu/drm/renesas/shmobile/shmob_drm_crtc.h
@@ -27,9 +27,6 @@ struct shmob_drm_crtc {
 
 	struct drm_pending_vblank_event *event;
 	wait_queue_head_t flip_wait;
-	int dpms;
-
-	bool started;
 };
 
 struct shmob_drm_connector {
-- 
2.34.1




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