drm: atmel-hlcdc: Atomic mode-setting conversion

Convert the HLCDC driver to atomic mode-setting.
Signed-off-by: NBoris Brezillon <boris.brezillon@free-electrons.com>
Tested-by: NSylvain Rochet <sylvain.rochet@finsecur.com>
Acked-by: NDaniel Vetter <daniel.vetter@ffwll.ch>

drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_crtc.c

@@ -37,14 +37,14 @@
  * @hlcdc: pointer to the atmel_hlcdc structure provided by the MFD device
  * @event: pointer to the current page flip event
  * @id: CRTC id (returned by drm_crtc_index)
- * @dpms: DPMS mode
+ * @enabled: CRTC state
  */
 struct atmel_hlcdc_crtc {
 	struct drm_crtc base;
 	struct atmel_hlcdc_dc *dc;
 	struct drm_pending_vblank_event *event;
 	int id;
-	int dpms;
+	bool enabled;
 };
 
 static inline struct atmel_hlcdc_crtc *
@@ -53,86 +53,17 @@ drm_crtc_to_atmel_hlcdc_crtc(struct drm_crtc *crtc)
 	return container_of(crtc, struct atmel_hlcdc_crtc, base);
 }
 
-static void atmel_hlcdc_crtc_dpms(struct drm_crtc *c, int mode)
+static void atmel_hlcdc_crtc_mode_set_nofb(struct drm_crtc *c)
 {
-	struct drm_device *dev = c->dev;
 	struct atmel_hlcdc_crtc *crtc = drm_crtc_to_atmel_hlcdc_crtc(c);
 	struct regmap *regmap = crtc->dc->hlcdc->regmap;
-	unsigned int status;
-
-	if (mode != DRM_MODE_DPMS_ON)
-		mode = DRM_MODE_DPMS_OFF;
-
-	if (crtc->dpms == mode)
-		return;
-
-	pm_runtime_get_sync(dev->dev);
-
-	if (mode != DRM_MODE_DPMS_ON) {
-		regmap_write(regmap, ATMEL_HLCDC_DIS, ATMEL_HLCDC_DISP);
-		while (!regmap_read(regmap, ATMEL_HLCDC_SR, &status) &&
-		       (status & ATMEL_HLCDC_DISP))
-			cpu_relax();
-
-		regmap_write(regmap, ATMEL_HLCDC_DIS, ATMEL_HLCDC_SYNC);
-		while (!regmap_read(regmap, ATMEL_HLCDC_SR, &status) &&
-		       (status & ATMEL_HLCDC_SYNC))
-			cpu_relax();
-
-		regmap_write(regmap, ATMEL_HLCDC_DIS, ATMEL_HLCDC_PIXEL_CLK);
-		while (!regmap_read(regmap, ATMEL_HLCDC_SR, &status) &&
-		       (status & ATMEL_HLCDC_PIXEL_CLK))
-			cpu_relax();
-
-		clk_disable_unprepare(crtc->dc->hlcdc->sys_clk);
-
-		pm_runtime_allow(dev->dev);
-	} else {
-		pm_runtime_forbid(dev->dev);
-
-		clk_prepare_enable(crtc->dc->hlcdc->sys_clk);
-
-		regmap_write(regmap, ATMEL_HLCDC_EN, ATMEL_HLCDC_PIXEL_CLK);
-		while (!regmap_read(regmap, ATMEL_HLCDC_SR, &status) &&
-		       !(status & ATMEL_HLCDC_PIXEL_CLK))
-			cpu_relax();
-
-
-		regmap_write(regmap, ATMEL_HLCDC_EN, ATMEL_HLCDC_SYNC);
-		while (!regmap_read(regmap, ATMEL_HLCDC_SR, &status) &&
-		       !(status & ATMEL_HLCDC_SYNC))
-			cpu_relax();
-
-		regmap_write(regmap, ATMEL_HLCDC_EN, ATMEL_HLCDC_DISP);
-		while (!regmap_read(regmap, ATMEL_HLCDC_SR, &status) &&
-		       !(status & ATMEL_HLCDC_DISP))
-			cpu_relax();
-	}
-
-	pm_runtime_put_sync(dev->dev);
-
-	crtc->dpms = mode;
-}
-
-static int atmel_hlcdc_crtc_mode_set(struct drm_crtc *c,
-				     struct drm_display_mode *mode,
-				     struct drm_display_mode *adj,
-				     int x, int y,
-				     struct drm_framebuffer *old_fb)
-{
-	struct atmel_hlcdc_crtc *crtc = drm_crtc_to_atmel_hlcdc_crtc(c);
-	struct regmap *regmap = crtc->dc->hlcdc->regmap;
-	struct drm_plane *plane = c->primary;
-	struct drm_framebuffer *fb;
+	struct drm_display_mode *adj = &c->state->adjusted_mode;
 	unsigned long mode_rate;
 	struct videomode vm;
 	unsigned long prate;
 	unsigned int cfg;
 	int div;
 
-	if (atmel_hlcdc_dc_mode_valid(crtc->dc, adj) != MODE_OK)
-		return -EINVAL;
-
 	vm.vfront_porch = adj->crtc_vsync_start - adj->crtc_vdisplay;
 	vm.vback_porch = adj->crtc_vtotal - adj->crtc_vsync_end;
 	vm.vsync_len = adj->crtc_vsync_end - adj->crtc_vsync_start;
@@ -156,7 +87,7 @@ static int atmel_hlcdc_crtc_mode_set(struct drm_crtc *c,
 	cfg = ATMEL_HLCDC_CLKPOL;
 
 	prate = clk_get_rate(crtc->dc->hlcdc->sys_clk);
-	mode_rate = mode->crtc_clock * 1000;
+	mode_rate = adj->crtc_clock * 1000;
 	if ((prate / 2) < mode_rate) {
 		prate *= 2;
 		cfg |= ATMEL_HLCDC_CLKSEL;
@@ -174,10 +105,10 @@ static int atmel_hlcdc_crtc_mode_set(struct drm_crtc *c,
 
 	cfg = 0;
 
-	if (mode->flags & DRM_MODE_FLAG_NVSYNC)
+	if (adj->flags & DRM_MODE_FLAG_NVSYNC)
 		cfg |= ATMEL_HLCDC_VSPOL;
 
-	if (mode->flags & DRM_MODE_FLAG_NHSYNC)
+	if (adj->flags & DRM_MODE_FLAG_NHSYNC)
 		cfg |= ATMEL_HLCDC_HSPOL;
 
 	regmap_update_bits(regmap, ATMEL_HLCDC_CFG(5),
@@ -187,77 +118,132 @@ static int atmel_hlcdc_crtc_mode_set(struct drm_crtc *c,
 			   ATMEL_HLCDC_VSPSU | ATMEL_HLCDC_VSPHO |
 			   ATMEL_HLCDC_GUARDTIME_MASK,
 			   cfg);
-
-	fb = plane->fb;
-	plane->fb = old_fb;
-
-	return atmel_hlcdc_plane_update_with_mode(plane, c, fb, 0, 0,
-						  adj->hdisplay, adj->vdisplay,
-						  x << 16, y << 16,
-						  adj->hdisplay << 16,
-						  adj->vdisplay << 16,
-						  adj);
 }
 
-int atmel_hlcdc_crtc_mode_set_base(struct drm_crtc *c, int x, int y,
-				   struct drm_framebuffer *old_fb)
+static bool atmel_hlcdc_crtc_mode_fixup(struct drm_crtc *crtc,
+					const struct drm_display_mode *mode,
+					struct drm_display_mode *adjusted_mode)
 {
-	struct drm_plane *plane = c->primary;
-	struct drm_framebuffer *fb = plane->fb;
-	struct drm_display_mode *mode = &c->hwmode;
-
-	plane->fb = old_fb;
-
-	return plane->funcs->update_plane(plane, c, fb,
-					  0, 0,
-					  mode->hdisplay,
-					  mode->vdisplay,
-					  x << 16, y << 16,
-					  mode->hdisplay << 16,
-					  mode->vdisplay << 16);
+	return true;
 }
 
-static void atmel_hlcdc_crtc_prepare(struct drm_crtc *crtc)
+static void atmel_hlcdc_crtc_disable(struct drm_crtc *c)
 {
-	atmel_hlcdc_crtc_dpms(crtc, DRM_MODE_DPMS_OFF);
+	struct drm_device *dev = c->dev;
+	struct atmel_hlcdc_crtc *crtc = drm_crtc_to_atmel_hlcdc_crtc(c);
+	struct regmap *regmap = crtc->dc->hlcdc->regmap;
+	unsigned int status;
+
+	if (!crtc->enabled)
+		return;
+
+	drm_crtc_vblank_off(c);
+
+	pm_runtime_get_sync(dev->dev);
+
+	regmap_write(regmap, ATMEL_HLCDC_DIS, ATMEL_HLCDC_DISP);
+	while (!regmap_read(regmap, ATMEL_HLCDC_SR, &status) &&
+	       (status & ATMEL_HLCDC_DISP))
+		cpu_relax();
+
+	regmap_write(regmap, ATMEL_HLCDC_DIS, ATMEL_HLCDC_SYNC);
+	while (!regmap_read(regmap, ATMEL_HLCDC_SR, &status) &&
+	       (status & ATMEL_HLCDC_SYNC))
+		cpu_relax();
+
+	regmap_write(regmap, ATMEL_HLCDC_DIS, ATMEL_HLCDC_PIXEL_CLK);
+	while (!regmap_read(regmap, ATMEL_HLCDC_SR, &status) &&
+	       (status & ATMEL_HLCDC_PIXEL_CLK))
+		cpu_relax();
+
+	clk_disable_unprepare(crtc->dc->hlcdc->sys_clk);
+
+	pm_runtime_allow(dev->dev);
+
+	pm_runtime_put_sync(dev->dev);
+
+	crtc->enabled = false;
 }
 
-static void atmel_hlcdc_crtc_commit(struct drm_crtc *crtc)
+static void atmel_hlcdc_crtc_enable(struct drm_crtc *c)
 {
-	atmel_hlcdc_crtc_dpms(crtc, DRM_MODE_DPMS_ON);
+	struct drm_device *dev = c->dev;
+	struct atmel_hlcdc_crtc *crtc = drm_crtc_to_atmel_hlcdc_crtc(c);
+	struct regmap *regmap = crtc->dc->hlcdc->regmap;
+	unsigned int status;
+
+	if (crtc->enabled)
+		return;
+
+	pm_runtime_get_sync(dev->dev);
+
+	pm_runtime_forbid(dev->dev);
+
+	clk_prepare_enable(crtc->dc->hlcdc->sys_clk);
+
+	regmap_write(regmap, ATMEL_HLCDC_EN, ATMEL_HLCDC_PIXEL_CLK);
+	while (!regmap_read(regmap, ATMEL_HLCDC_SR, &status) &&
+	       !(status & ATMEL_HLCDC_PIXEL_CLK))
+		cpu_relax();
+
+
+	regmap_write(regmap, ATMEL_HLCDC_EN, ATMEL_HLCDC_SYNC);
+	while (!regmap_read(regmap, ATMEL_HLCDC_SR, &status) &&
+	       !(status & ATMEL_HLCDC_SYNC))
+		cpu_relax();
+
+	regmap_write(regmap, ATMEL_HLCDC_EN, ATMEL_HLCDC_DISP);
+	while (!regmap_read(regmap, ATMEL_HLCDC_SR, &status) &&
+	       !(status & ATMEL_HLCDC_DISP))
+		cpu_relax();
+
+	pm_runtime_put_sync(dev->dev);
+
+	drm_crtc_vblank_on(c);
+
+	crtc->enabled = true;
 }
 
-static bool atmel_hlcdc_crtc_mode_fixup(struct drm_crtc *crtc,
-					const struct drm_display_mode *mode,
-					struct drm_display_mode *adjusted_mode)
+static int atmel_hlcdc_crtc_atomic_check(struct drm_crtc *c,
+					 struct drm_crtc_state *s)
 {
-	return true;
+	struct atmel_hlcdc_crtc *crtc = drm_crtc_to_atmel_hlcdc_crtc(c);
+
+	if (atmel_hlcdc_dc_mode_valid(crtc->dc, &s->adjusted_mode) != MODE_OK)
+		return -EINVAL;
+
+	return 0;
 }
 
-static void atmel_hlcdc_crtc_disable(struct drm_crtc *crtc)
+static void atmel_hlcdc_crtc_atomic_begin(struct drm_crtc *c)
 {
-	struct drm_plane *plane;
+	struct atmel_hlcdc_crtc *crtc = drm_crtc_to_atmel_hlcdc_crtc(c);
 
-	atmel_hlcdc_crtc_dpms(crtc, DRM_MODE_DPMS_OFF);
-	crtc->primary->funcs->disable_plane(crtc->primary);
+	if (c->state->event) {
+		c->state->event->pipe = drm_crtc_index(c);
 
-	drm_for_each_legacy_plane(plane, &crtc->dev->mode_config.plane_list) {
-		if (plane->crtc != crtc)
-			continue;
+		WARN_ON(drm_crtc_vblank_get(c) != 0);
 
-		plane->funcs->disable_plane(crtc->primary);
-		plane->crtc = NULL;
+		crtc->event = c->state->event;
+		c->state->event = NULL;
 	}
 }
 
+static void atmel_hlcdc_crtc_atomic_flush(struct drm_crtc *crtc)
+{
+	/* TODO: write common plane control register if available */
+}
+
 static const struct drm_crtc_helper_funcs lcdc_crtc_helper_funcs = {
 	.mode_fixup = atmel_hlcdc_crtc_mode_fixup,
-	.dpms = atmel_hlcdc_crtc_dpms,
-	.mode_set = atmel_hlcdc_crtc_mode_set,
-	.mode_set_base = atmel_hlcdc_crtc_mode_set_base,
-	.prepare = atmel_hlcdc_crtc_prepare,
-	.commit = atmel_hlcdc_crtc_commit,
+	.mode_set = drm_helper_crtc_mode_set,
+	.mode_set_nofb = atmel_hlcdc_crtc_mode_set_nofb,
+	.mode_set_base = drm_helper_crtc_mode_set_base,
 	.disable = atmel_hlcdc_crtc_disable,
+	.enable = atmel_hlcdc_crtc_enable,
+	.atomic_check = atmel_hlcdc_crtc_atomic_check,
+	.atomic_begin = atmel_hlcdc_crtc_atomic_begin,
+	.atomic_flush = atmel_hlcdc_crtc_atomic_flush,
 };
 
 static void atmel_hlcdc_crtc_destroy(struct drm_crtc *c)
@@ -306,61 +292,13 @@ void atmel_hlcdc_crtc_irq(struct drm_crtc *c)
 	atmel_hlcdc_crtc_finish_page_flip(drm_crtc_to_atmel_hlcdc_crtc(c));
 }
 
-static int atmel_hlcdc_crtc_page_flip(struct drm_crtc *c,
-				      struct drm_framebuffer *fb,
-				      struct drm_pending_vblank_event *event,
-				      uint32_t page_flip_flags)
-{
-	struct atmel_hlcdc_crtc *crtc = drm_crtc_to_atmel_hlcdc_crtc(c);
-	struct atmel_hlcdc_plane_update_req req;
-	struct drm_plane *plane = c->primary;
-	struct drm_device *dev = c->dev;
-	unsigned long flags;
-	int ret = 0;
-
-	spin_lock_irqsave(&dev->event_lock, flags);
-	if (crtc->event)
-		ret = -EBUSY;
-	spin_unlock_irqrestore(&dev->event_lock, flags);
-
-	if (ret)
-		return ret;
-
-	memset(&req, 0, sizeof(req));
-	req.crtc_x = 0;
-	req.crtc_y = 0;
-	req.crtc_h = c->mode.crtc_vdisplay;
-	req.crtc_w = c->mode.crtc_hdisplay;
-	req.src_x = c->x << 16;
-	req.src_y = c->y << 16;
-	req.src_w = req.crtc_w << 16;
-	req.src_h = req.crtc_h << 16;
-	req.fb = fb;
-
-	ret = atmel_hlcdc_plane_prepare_update_req(plane, &req, &c->hwmode);
-	if (ret)
-		return ret;
-
-	if (event) {
-		drm_vblank_get(c->dev, crtc->id);
-		spin_lock_irqsave(&dev->event_lock, flags);
-		crtc->event = event;
-		spin_unlock_irqrestore(&dev->event_lock, flags);
-	}
-
-	ret = atmel_hlcdc_plane_apply_update_req(plane, &req);
-	if (ret)
-		crtc->event = NULL;
-	else
-		plane->fb = fb;
-
-	return ret;
-}
-
 static const struct drm_crtc_funcs atmel_hlcdc_crtc_funcs = {
-	.page_flip = atmel_hlcdc_crtc_page_flip,
-	.set_config = drm_crtc_helper_set_config,
+	.page_flip = drm_atomic_helper_page_flip,
+	.set_config = drm_atomic_helper_set_config,
 	.destroy = atmel_hlcdc_crtc_destroy,
+	.reset = drm_atomic_helper_crtc_reset,
+	.atomic_duplicate_state =  drm_atomic_helper_crtc_duplicate_state,
+	.atomic_destroy_state = drm_atomic_helper_crtc_destroy_state,
 };
 
 int atmel_hlcdc_crtc_create(struct drm_device *dev)
@@ -375,7 +313,6 @@ int atmel_hlcdc_crtc_create(struct drm_device *dev)
 	if (!crtc)
 		return -ENOMEM;
 
-	crtc->dpms = DRM_MODE_DPMS_OFF;
 	crtc->dc = dc;
 
 	ret = drm_crtc_init_with_planes(dev, &crtc->base,

drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.c

@@ -222,6 +222,8 @@ static void atmel_hlcdc_fb_output_poll_changed(struct drm_device *dev)
 static const struct drm_mode_config_funcs mode_config_funcs = {
 	.fb_create = atmel_hlcdc_fb_create,
 	.output_poll_changed = atmel_hlcdc_fb_output_poll_changed,
+	.atomic_check = drm_atomic_helper_check,
+	.atomic_commit = drm_atomic_helper_commit,
 };
 
 static int atmel_hlcdc_dc_modeset_init(struct drm_device *dev)
@@ -319,6 +321,8 @@ static int atmel_hlcdc_dc_load(struct drm_device *dev)
 		goto err_periph_clk_disable;
 	}
 
+	drm_mode_config_reset(dev);
+
 	ret = drm_vblank_init(dev, 1);
 	if (ret < 0) {
 		dev_err(dev->dev, "failed to initialize vblank\n");

drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.h

@@ -26,11 +26,14 @@
 #include <linux/irqdomain.h>
 #include <linux/pwm.h>
 
+#include <drm/drm_atomic.h>
+#include <drm/drm_atomic_helper.h>
 #include <drm/drm_crtc.h>
 #include <drm/drm_crtc_helper.h>
 #include <drm/drm_fb_cma_helper.h>
 #include <drm/drm_gem_cma_helper.h>
 #include <drm/drm_panel.h>
+#include <drm/drm_plane_helper.h>
 #include <drm/drmP.h>
 
 #include "atmel_hlcdc_layer.h"
@@ -69,7 +72,6 @@ struct atmel_hlcdc_dc_desc {
  */
 struct atmel_hlcdc_plane_properties {
 	struct drm_property *alpha;
-	struct drm_property *rotation;
 };
 
 /**
@@ -84,7 +86,6 @@ struct atmel_hlcdc_plane {
 	struct drm_plane base;
 	struct atmel_hlcdc_layer layer;
 	struct atmel_hlcdc_plane_properties *properties;
-	unsigned int rotation;
 };
 
 static inline struct atmel_hlcdc_plane *
@@ -99,43 +100,6 @@ atmel_hlcdc_layer_to_plane(struct atmel_hlcdc_layer *l)
 	return container_of(l, struct atmel_hlcdc_plane, layer);
 }
 
-/**
- * Atmel HLCDC Plane update request structure.
- *
- * @crtc_x: x position of the plane relative to the CRTC
- * @crtc_y: y position of the plane relative to the CRTC
- * @crtc_w: visible width of the plane
- * @crtc_h: visible height of the plane
- * @src_x: x buffer position
- * @src_y: y buffer position
- * @src_w: buffer width
- * @src_h: buffer height
- * @fb: framebuffer object object
- * @bpp: bytes per pixel deduced from pixel_format
- * @offsets: offsets to apply to the GEM buffers
- * @xstride: value to add to the pixel pointer between each line
- * @pstride: value to add to the pixel pointer between each pixel
- * @nplanes: number of planes (deduced from pixel_format)
- */
-struct atmel_hlcdc_plane_update_req {
-	int crtc_x;
-	int crtc_y;
-	unsigned int crtc_w;
-	unsigned int crtc_h;
-	uint32_t src_x;
-	uint32_t src_y;
-	uint32_t src_w;
-	uint32_t src_h;
-	struct drm_framebuffer *fb;
-
-	/* These fields are private and should not be touched */
-	int bpp[ATMEL_HLCDC_MAX_PLANES];
-	unsigned int offsets[ATMEL_HLCDC_MAX_PLANES];
-	int xstride[ATMEL_HLCDC_MAX_PLANES];
-	int pstride[ATMEL_HLCDC_MAX_PLANES];
-	int nplanes;
-};
-
 /**
  * Atmel HLCDC Planes.
  *
@@ -184,23 +148,6 @@ int atmel_hlcdc_dc_mode_valid(struct atmel_hlcdc_dc *dc,
 struct atmel_hlcdc_planes *
 atmel_hlcdc_create_planes(struct drm_device *dev);
 
-int atmel_hlcdc_plane_prepare_update_req(struct drm_plane *p,
-				struct atmel_hlcdc_plane_update_req *req,
-				const struct drm_display_mode *mode);
-
-int atmel_hlcdc_plane_apply_update_req(struct drm_plane *p,
-				struct atmel_hlcdc_plane_update_req *req);
-
-int atmel_hlcdc_plane_update_with_mode(struct drm_plane *p,
-				       struct drm_crtc *crtc,
-				       struct drm_framebuffer *fb,
-				       int crtc_x, int crtc_y,
-				       unsigned int crtc_w,
-				       unsigned int crtc_h,
-				       uint32_t src_x, uint32_t src_y,
-				       uint32_t src_w, uint32_t src_h,
-				       const struct drm_display_mode *mode);
-
 void atmel_hlcdc_crtc_irq(struct drm_crtc *c);
 
 void atmel_hlcdc_crtc_cancel_page_flip(struct drm_crtc *crtc,

drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_layer.c

@@ -298,7 +298,7 @@ void atmel_hlcdc_layer_irq(struct atmel_hlcdc_layer *layer)
 	spin_unlock_irqrestore(&layer->lock, flags);
 }
 
-int atmel_hlcdc_layer_disable(struct atmel_hlcdc_layer *layer)
+void atmel_hlcdc_layer_disable(struct atmel_hlcdc_layer *layer)
 {
 	struct atmel_hlcdc_layer_dma_channel *dma = &layer->dma;
 	struct atmel_hlcdc_layer_update *upd = &layer->update;
@@ -340,8 +340,6 @@ int atmel_hlcdc_layer_disable(struct atmel_hlcdc_layer *layer)
 	dma->status = ATMEL_HLCDC_LAYER_DISABLED;
 
 	spin_unlock_irqrestore(&layer->lock, flags);
-
-	return 0;
 }
 
 int atmel_hlcdc_layer_update_start(struct atmel_hlcdc_layer *layer)

drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_layer.h

@@ -120,6 +120,7 @@
 #define ATMEL_HLCDC_LAYER_DISCEN		BIT(11)
 #define ATMEL_HLCDC_LAYER_GA_SHIFT		16
 #define ATMEL_HLCDC_LAYER_GA_MASK		GENMASK(23, ATMEL_HLCDC_LAYER_GA_SHIFT)
+#define ATMEL_HLCDC_LAYER_GA(x)			((x) << ATMEL_HLCDC_LAYER_GA_SHIFT)
 
 #define ATMEL_HLCDC_LAYER_CSC_CFG(p, o)		ATMEL_HLCDC_LAYER_CFG(p, (p)->desc->layout.csc + o)
 
@@ -376,7 +377,7 @@ int atmel_hlcdc_layer_init(struct drm_device *dev,
 void atmel_hlcdc_layer_cleanup(struct drm_device *dev,
 			       struct atmel_hlcdc_layer *layer);
 
-int atmel_hlcdc_layer_disable(struct atmel_hlcdc_layer *layer);
+void atmel_hlcdc_layer_disable(struct atmel_hlcdc_layer *layer);
 
 int atmel_hlcdc_layer_update_start(struct atmel_hlcdc_layer *layer);
 

drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_output.c

@@ -86,25 +86,22 @@ atmel_hlcdc_rgb_output_to_panel(struct atmel_hlcdc_rgb_output *output)
 	return container_of(output, struct atmel_hlcdc_panel, base);
 }
 
-static void atmel_hlcdc_panel_encoder_dpms(struct drm_encoder *encoder,
-					   int mode)
+static void atmel_hlcdc_panel_encoder_enable(struct drm_encoder *encoder)
 {
 	struct atmel_hlcdc_rgb_output *rgb =
 			drm_encoder_to_atmel_hlcdc_rgb_output(encoder);
 	struct atmel_hlcdc_panel *panel = atmel_hlcdc_rgb_output_to_panel(rgb);
 
-	if (mode != DRM_MODE_DPMS_ON)
-		mode = DRM_MODE_DPMS_OFF;
-
-	if (mode == rgb->dpms)
-		return;
+	drm_panel_enable(panel->panel);
+}
 
-	if (mode != DRM_MODE_DPMS_ON)
-		drm_panel_disable(panel->panel);
-	else
-		drm_panel_enable(panel->panel);
+static void atmel_hlcdc_panel_encoder_disable(struct drm_encoder *encoder)
+{
+	struct atmel_hlcdc_rgb_output *rgb =
+			drm_encoder_to_atmel_hlcdc_rgb_output(encoder);
+	struct atmel_hlcdc_panel *panel = atmel_hlcdc_rgb_output_to_panel(rgb);
 
-	rgb->dpms = mode;
+	drm_panel_disable(panel->panel);
 }
 
 static bool
@@ -115,16 +112,6 @@ atmel_hlcdc_panel_encoder_mode_fixup(struct drm_encoder *encoder,
 	return true;
 }
 
-static void atmel_hlcdc_panel_encoder_prepare(struct drm_encoder *encoder)
-{
-	atmel_hlcdc_panel_encoder_dpms(encoder, DRM_MODE_DPMS_OFF);
-}
-
-static void atmel_hlcdc_panel_encoder_commit(struct drm_encoder *encoder)
-{
-	atmel_hlcdc_panel_encoder_dpms(encoder, DRM_MODE_DPMS_ON);
-}
-
 static void
 atmel_hlcdc_rgb_encoder_mode_set(struct drm_encoder *encoder,
 				 struct drm_display_mode *mode,
@@ -156,11 +143,10 @@ atmel_hlcdc_rgb_encoder_mode_set(struct drm_encoder *encoder,
 }
 
 static struct drm_encoder_helper_funcs atmel_hlcdc_panel_encoder_helper_funcs = {
-	.dpms = atmel_hlcdc_panel_encoder_dpms,
 	.mode_fixup = atmel_hlcdc_panel_encoder_mode_fixup,
-	.prepare = atmel_hlcdc_panel_encoder_prepare,
-	.commit = atmel_hlcdc_panel_encoder_commit,
 	.mode_set = atmel_hlcdc_rgb_encoder_mode_set,
+	.disable = atmel_hlcdc_panel_encoder_disable,
+	.enable = atmel_hlcdc_panel_encoder_enable,
 };
 
 static void atmel_hlcdc_rgb_encoder_destroy(struct drm_encoder *encoder)
@@ -226,10 +212,13 @@ atmel_hlcdc_panel_connector_destroy(struct drm_connector *connector)
 }
 
 static const struct drm_connector_funcs atmel_hlcdc_panel_connector_funcs = {
-	.dpms = drm_helper_connector_dpms,
+	.dpms = drm_atomic_helper_connector_dpms,
 	.detect = atmel_hlcdc_panel_connector_detect,
 	.fill_modes = drm_helper_probe_single_connector_modes,
 	.destroy = atmel_hlcdc_panel_connector_destroy,
+	.reset = drm_atomic_helper_connector_reset,
+	.atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state,
+	.atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
 };
 
 static int atmel_hlcdc_create_panel_output(struct drm_device *dev,