[PATCH v3 20/23] drm: tegra: use vblank hooks in struct drm_crtc_funcs

[Shawn Guo]

From: Shawn Guo <shawn.guo at linaro.org>

The vblank hooks in struct drm_driver are deprecated and only meant for
legacy drivers.  For modern drivers with DRIVER_MODESET flag, the hooks
in struct drm_crtc_funcs should be used instead.

As the result, the wrapper functions tegra_drm_xxx get killed
completely, and tegra_dc_xxx are filled into struct drm_crtc_funcs as
vblank hooks directly.

Signed-off-by: Shawn Guo <shawn.guo at linaro.org>
Cc: Thierry Reding <thierry.reding at gmail.com>
---
 drivers/gpu/drm/tegra/dc.c  | 15 ++++++++++++---
 drivers/gpu/drm/tegra/drm.c | 38 --------------------------------------
 drivers/gpu/drm/tegra/drm.h |  3 ---
 3 files changed, 12 insertions(+), 44 deletions(-)

diff --git a/drivers/gpu/drm/tegra/dc.c b/drivers/gpu/drm/tegra/dc.c
index 7561a95a54e3..0db5d5a8d3b9 100644
--- a/drivers/gpu/drm/tegra/dc.c
+++ b/drivers/gpu/drm/tegra/dc.c
@@ -909,8 +909,10 @@ static int tegra_dc_add_planes(struct drm_device *drm, struct tegra_dc *dc)
 	return 0;
 }
 
-u32 tegra_dc_get_vblank_counter(struct tegra_dc *dc)
+static u32 tegra_dc_get_vblank_counter(struct drm_crtc *crtc)
 {
+	struct tegra_dc *dc = to_tegra_dc(crtc);
+
 	if (dc->syncpt)
 		return host1x_syncpt_read(dc->syncpt);
 
@@ -918,8 +920,9 @@ u32 tegra_dc_get_vblank_counter(struct tegra_dc *dc)
 	return drm_crtc_vblank_count(&dc->base);
 }
 
-void tegra_dc_enable_vblank(struct tegra_dc *dc)
+static int tegra_dc_enable_vblank(struct drm_crtc *crtc)
 {
+	struct tegra_dc *dc = to_tegra_dc(crtc);
 	unsigned long value, flags;
 
 	spin_lock_irqsave(&dc->lock, flags);
@@ -929,10 +932,13 @@ void tegra_dc_enable_vblank(struct tegra_dc *dc)
 	tegra_dc_writel(dc, value, DC_CMD_INT_MASK);
 
 	spin_unlock_irqrestore(&dc->lock, flags);
+
+	return 0;
 }
 
-void tegra_dc_disable_vblank(struct tegra_dc *dc)
+static void tegra_dc_disable_vblank(struct drm_crtc *crtc)
 {
+	struct tegra_dc *dc = to_tegra_dc(crtc);
 	unsigned long value, flags;
 
 	spin_lock_irqsave(&dc->lock, flags);
@@ -1036,6 +1042,9 @@ static void tegra_crtc_atomic_destroy_state(struct drm_crtc *crtc,
 	.reset = tegra_crtc_reset,
 	.atomic_duplicate_state = tegra_crtc_atomic_duplicate_state,
 	.atomic_destroy_state = tegra_crtc_atomic_destroy_state,
+	.get_vblank_counter = tegra_dc_get_vblank_counter,
+	.enable_vblank = tegra_dc_enable_vblank,
+	.disable_vblank = tegra_dc_disable_vblank,
 };
 
 static int tegra_dc_set_timings(struct tegra_dc *dc,
diff --git a/drivers/gpu/drm/tegra/drm.c b/drivers/gpu/drm/tegra/drm.c
index ef215fef63d6..dba4e090d3df 100644
--- a/drivers/gpu/drm/tegra/drm.c
+++ b/drivers/gpu/drm/tegra/drm.c
@@ -804,40 +804,6 @@ static int tegra_gem_get_flags(struct drm_device *drm, void *data,
 	.llseek = noop_llseek,
 };
 
-static u32 tegra_drm_get_vblank_counter(struct drm_device *drm,
-					unsigned int pipe)
-{
-	struct drm_crtc *crtc = drm_crtc_from_index(drm, pipe);
-	struct tegra_dc *dc = to_tegra_dc(crtc);
-
-	if (!crtc)
-		return 0;
-
-	return tegra_dc_get_vblank_counter(dc);
-}
-
-static int tegra_drm_enable_vblank(struct drm_device *drm, unsigned int pipe)
-{
-	struct drm_crtc *crtc = drm_crtc_from_index(drm, pipe);
-	struct tegra_dc *dc = to_tegra_dc(crtc);
-
-	if (!crtc)
-		return -ENODEV;
-
-	tegra_dc_enable_vblank(dc);
-
-	return 0;
-}
-
-static void tegra_drm_disable_vblank(struct drm_device *drm, unsigned int pipe)
-{
-	struct drm_crtc *crtc = drm_crtc_from_index(drm, pipe);
-	struct tegra_dc *dc = to_tegra_dc(crtc);
-
-	if (crtc)
-		tegra_dc_disable_vblank(dc);
-}
-
 static void tegra_drm_preclose(struct drm_device *drm, struct drm_file *file)
 {
 	struct tegra_drm_file *fpriv = file->driver_priv;
@@ -905,10 +871,6 @@ static int tegra_debugfs_init(struct drm_minor *minor)
 	.preclose = tegra_drm_preclose,
 	.lastclose = tegra_drm_lastclose,
 
-	.get_vblank_counter = tegra_drm_get_vblank_counter,
-	.enable_vblank = tegra_drm_enable_vblank,
-	.disable_vblank = tegra_drm_disable_vblank,
-
 #if defined(CONFIG_DEBUG_FS)
 	.debugfs_init = tegra_debugfs_init,
 #endif
diff --git a/drivers/gpu/drm/tegra/drm.h b/drivers/gpu/drm/tegra/drm.h
index 5205790dd679..5747accb2271 100644
--- a/drivers/gpu/drm/tegra/drm.h
+++ b/drivers/gpu/drm/tegra/drm.h
@@ -193,9 +193,6 @@ struct tegra_dc_window {
 };
 
 /* from dc.c */
-u32 tegra_dc_get_vblank_counter(struct tegra_dc *dc);
-void tegra_dc_enable_vblank(struct tegra_dc *dc);
-void tegra_dc_disable_vblank(struct tegra_dc *dc);
 void tegra_dc_commit(struct tegra_dc *dc);
 int tegra_dc_state_setup_clock(struct tegra_dc *dc,
 			       struct drm_crtc_state *crtc_state,
-- 
1.9.1