Merge branch 'drm-sti-next-atomic-2015-08-11' of...

Merge branch 'drm-sti-next-atomic-2015-08-11' of http://git.linaro.org/people/benjamin.gaignard/kernel into drm-next

This serie of patches fix minor bugs around how driver sub-components are
bind and planes z-ordering.
The main part is about atomic support: using more atomic helpers allow us
to simplify the code (~300 lines removed) and to ahve a better match between
drm concepts (planes and crtc) and hardware split.

[airlied: fixed up conflict in atomic code]

* 'drm-sti-next-atomic-2015-08-11' of http://git.linaro.org/people/benjamin.gaignard/kernel:
  drm/sti: atomic crtc/plane update
  drm/sti: rename files and functions
  drm/sti: code clean up
  drm/sti: fix dynamic z-ordering
  drm: sti: fix sub-components bind

Documentation/devicetree/bindings/gpu/st,stih4xx.txt

@@ -52,10 +52,9 @@ STMicroelectronics stih4xx platforms
     See ../reset/reset.txt for details.
   - reset-names: names of the resets listed in resets property in the same
     order.
-  - ranges: to allow probing of subdevices
 
 - sti-hdmi: hdmi output block
-  must be a child of sti-tvout
+  must be a child of sti-display-subsystem
   Required properties:
   - compatible: "st,stih<chip>-hdmi";
   - reg: Physical base address of the IP registers and length of memory mapped region.
@@ -72,7 +71,7 @@ STMicroelectronics stih4xx platforms
 
 sti-hda:
   Required properties:
-  must be a child of sti-tvout
+  must be a child of sti-display-subsystem
   - compatible: "st,stih<chip>-hda"
   - reg: Physical base address of the IP registers and length of memory mapped region.
   - reg-names: names of the mapped memory regions listed in regs property in
@@ -85,7 +84,7 @@ sti-hda:
 
 sti-dvo:
   Required properties:
-  must be a child of sti-tvout
+  must be a child of sti-display-subsystem
   - compatible: "st,stih<chip>-dvo"
   - reg: Physical base address of the IP registers and length of memory mapped region.
   - reg-names: names of the mapped memory regions listed in regs property in
@@ -195,7 +194,7 @@ Example:
 			reg-names	= "tvout-reg", "hda-reg", "syscfg";
 			reset-names     = "tvout";
 			resets          = <&softreset STIH416_HDTVOUT_SOFTRESET>;
-			ranges;
+		};
 
 		sti-hdmi@fe85c000 {
 			compatible	= "st,stih416-hdmi";
@@ -227,7 +226,6 @@ Example:
 			pinctrl-0	= <&pinctrl_dvo>;
 			sti,panel	= <&panel_dvo>;
 		};
-		};
 
 		sti-hqvdp@9c000000 {
 				compatible	= "st,stih407-hqvdp";

drivers/gpu/drm/sti/Makefile

 sticompositor-y := \
-	sti_layer.o \
 	sti_mixer.o \
 	sti_gdp.o \
 	sti_vid.o \
 	sti_cursor.o \
 	sti_compositor.o \
-	sti_drm_crtc.o \
-	sti_drm_plane.o
+	sti_crtc.o \
+	sti_plane.o
 
 stihdmi-y := sti_hdmi.o \
 	sti_hdmi_tx3g0c55phy.o \
@@ -24,4 +23,4 @@ obj-$(CONFIG_DRM_STI) = \
 	sticompositor.o \
 	sti_hqvdp.o \
 	stidvo.o \
-	sti_drm_drv.o
+	sti_drv.o

drivers/gpu/drm/sti/sti_compositor.c

@@ -14,10 +14,12 @@
 #include <drm/drmP.h>
 
 #include "sti_compositor.h"
-#include "sti_drm_crtc.h"
-#include "sti_drm_drv.h"
-#include "sti_drm_plane.h"
+#include "sti_crtc.h"
+#include "sti_cursor.h"
+#include "sti_drv.h"
 #include "sti_gdp.h"
+#include "sti_plane.h"
+#include "sti_vid.h"
 #include "sti_vtg.h"
 
 /*
@@ -31,7 +33,7 @@ struct sti_compositor_data stih407_compositor_data = {
 			{STI_GPD_SUBDEV, (int)STI_GDP_1, 0x200},
 			{STI_GPD_SUBDEV, (int)STI_GDP_2, 0x300},
 			{STI_GPD_SUBDEV, (int)STI_GDP_3, 0x400},
-			{STI_VID_SUBDEV, (int)STI_VID_0, 0x700},
+			{STI_VID_SUBDEV, (int)STI_HQVDP_0, 0x700},
 			{STI_MIXER_MAIN_SUBDEV, STI_MIXER_MAIN, 0xC00},
 			{STI_MIXER_AUX_SUBDEV, STI_MIXER_AUX, 0xD00},
 	},
@@ -53,14 +55,29 @@ struct sti_compositor_data stih416_compositor_data = {
 	},
 };
 
-static int sti_compositor_init_subdev(struct sti_compositor *compo,
-		struct sti_compositor_subdev_descriptor *desc,
-		unsigned int array_size)
+static int sti_compositor_bind(struct device *dev,
+			       struct device *master,
+			       void *data)
 {
-	unsigned int i, mixer_id = 0, layer_id = 0;
+	struct sti_compositor *compo = dev_get_drvdata(dev);
+	struct drm_device *drm_dev = data;
+	unsigned int i, mixer_id = 0, vid_id = 0, crtc_id = 0;
+	struct sti_private *dev_priv = drm_dev->dev_private;
+	struct drm_plane *cursor = NULL;
+	struct drm_plane *primary = NULL;
+	struct sti_compositor_subdev_descriptor *desc = compo->data.subdev_desc;
+	unsigned int array_size = compo->data.nb_subdev;
 
+	dev_priv->compo = compo;
+
+	/* Register mixer subdev and video subdev first */
 	for (i = 0; i < array_size; i++) {
 		switch (desc[i].type) {
+		case STI_VID_SUBDEV:
+			compo->vid[vid_id++] =
+			    sti_vid_create(compo->dev, desc[i].id,
+					   compo->regs + desc[i].offset);
+			break;
 		case STI_MIXER_MAIN_SUBDEV:
 		case STI_MIXER_AUX_SUBDEV:
 			compo->mixer[mixer_id++] =
@@ -68,83 +85,68 @@ static int sti_compositor_init_subdev(struct sti_compositor *compo,
 					     compo->regs + desc[i].offset);
 			break;
 		case STI_GPD_SUBDEV:
-		case STI_VID_SUBDEV:
 		case STI_CURSOR_SUBDEV:
-			compo->layer[layer_id++] =
-			    sti_layer_create(compo->dev, desc[i].id,
-					     compo->regs + desc[i].offset);
+			/* Nothing to do, wait for the second round */
 			break;
 		default:
 			DRM_ERROR("Unknow subdev compoment type\n");
 			return 1;
 		}
-
 	}
-	compo->nb_mixers = mixer_id;
-	compo->nb_layers = layer_id;
-
-	return 0;
-}
 
-static int sti_compositor_bind(struct device *dev, struct device *master,
-	void *data)
-{
-	struct sti_compositor *compo = dev_get_drvdata(dev);
-	struct drm_device *drm_dev = data;
-	unsigned int i, crtc = 0, plane = 0;
-	struct sti_drm_private *dev_priv = drm_dev->dev_private;
-	struct drm_plane *cursor = NULL;
-	struct drm_plane *primary = NULL;
-
-	dev_priv->compo = compo;
-
-	for (i = 0; i < compo->nb_layers; i++) {
-		if (compo->layer[i]) {
-			enum sti_layer_desc desc = compo->layer[i]->desc;
-			enum sti_layer_type type = desc & STI_LAYER_TYPE_MASK;
+	/* Register the other subdevs, create crtc and planes */
+	for (i = 0; i < array_size; i++) {
 		enum drm_plane_type plane_type = DRM_PLANE_TYPE_OVERLAY;
 
-			if (crtc < compo->nb_mixers)
+		if (crtc_id < mixer_id)
 			plane_type = DRM_PLANE_TYPE_PRIMARY;
 
-			switch (type) {
-			case STI_CUR:
-				cursor = sti_drm_plane_init(drm_dev,
-						compo->layer[i],
-						1, DRM_PLANE_TYPE_CURSOR);
+		switch (desc[i].type) {
+		case STI_MIXER_MAIN_SUBDEV:
+		case STI_MIXER_AUX_SUBDEV:
+		case STI_VID_SUBDEV:
+			/* Nothing to do, already done at the first round */
+			break;
+		case STI_CURSOR_SUBDEV:
+			cursor = sti_cursor_create(drm_dev, compo->dev,
+						   desc[i].id,
+						   compo->regs + desc[i].offset,
+						   1);
+			if (!cursor) {
+				DRM_ERROR("Can't create CURSOR plane\n");
+				break;
+			}
 			break;
-			case STI_GDP:
-			case STI_VID:
-				primary = sti_drm_plane_init(drm_dev,
-						compo->layer[i],
-						(1 << compo->nb_mixers) - 1,
+		case STI_GPD_SUBDEV:
+			primary = sti_gdp_create(drm_dev, compo->dev,
+						 desc[i].id,
+						 compo->regs + desc[i].offset,
+						 (1 << mixer_id) - 1,
 						 plane_type);
-				plane++;
+			if (!primary) {
+				DRM_ERROR("Can't create GDP plane\n");
 				break;
-			case STI_BCK:
-			case STI_VDP:
+			}
 			break;
+		default:
+			DRM_ERROR("Unknown subdev compoment type\n");
+			return 1;
 		}
 
 		/* The first planes are reserved for primary planes*/
-			if (crtc < compo->nb_mixers && primary) {
-				sti_drm_crtc_init(drm_dev, compo->mixer[crtc],
+		if (crtc_id < mixer_id && primary) {
+			sti_crtc_init(drm_dev, compo->mixer[crtc_id],
 				      primary, cursor);
-				crtc++;
+			crtc_id++;
 			cursor = NULL;
 			primary = NULL;
 		}
 	}
-	}
 
-	drm_vblank_init(drm_dev, crtc);
+	drm_vblank_init(drm_dev, crtc_id);
 	/* Allow usage of vblank without having to call drm_irq_install */
 	drm_dev->irq_enabled = 1;
 
-	DRM_DEBUG_DRIVER("Initialized %d DRM CRTC(s) and %d DRM plane(s)\n",
-			 crtc, plane);
-	DRM_DEBUG_DRIVER("DRM plane(s) for VID/VDP not created yet\n");
-
 	return 0;
 }
 
@@ -179,7 +181,6 @@ static int sti_compositor_probe(struct platform_device *pdev)
 	struct device_node *vtg_np;
 	struct sti_compositor *compo;
 	struct resource *res;
-	int err;
 
 	compo = devm_kzalloc(dev, sizeof(*compo), GFP_KERNEL);
 	if (!compo) {
@@ -187,7 +188,7 @@ static int sti_compositor_probe(struct platform_device *pdev)
 		return -ENOMEM;
 	}
 	compo->dev = dev;
-	compo->vtg_vblank_nb.notifier_call = sti_drm_crtc_vblank_cb;
+	compo->vtg_vblank_nb.notifier_call = sti_crtc_vblank_cb;
 
 	/* populate data structure depending on compatibility */
 	BUG_ON(!of_match_node(compositor_of_match, np)->data);
@@ -251,12 +252,6 @@ static int sti_compositor_probe(struct platform_device *pdev)
 	if (vtg_np)
 		compo->vtg_aux = of_vtg_find(vtg_np);
 
-	/* Initialize compositor subdevices */
-	err = sti_compositor_init_subdev(compo, compo->data.subdev_desc,
-					 compo->data.nb_subdev);
-	if (err)
-		return err;
-
 	platform_set_drvdata(pdev, compo);
 
 	return component_add(&pdev->dev, &sti_compositor_ops);

drivers/gpu/drm/sti/sti_compositor.h

@@ -12,13 +12,13 @@
 #include <linux/clk.h>
 #include <linux/kernel.h>
 
-#include "sti_layer.h"
 #include "sti_mixer.h"
+#include "sti_plane.h"
 
 #define WAIT_NEXT_VSYNC_MS      50 /*ms*/
 
-#define STI_MAX_LAYER 8
 #define STI_MAX_MIXER 2
+#define STI_MAX_VID   1
 
 enum sti_compositor_subdev_type {
 	STI_MIXER_MAIN_SUBDEV,
@@ -59,11 +59,9 @@ struct sti_compositor_data {
  * @rst_main: reset control of the main path
  * @rst_aux: reset control of the aux path
  * @mixer: array of mixers
+ * @vid: array of vids
  * @vtg_main: vtg for main data path
  * @vtg_aux: vtg for auxillary data path
- * @layer: array of layers
- * @nb_mixers: number of mixers for this compositor
- * @nb_layers: number of layers (GDP,VID,...) for this compositor
  * @vtg_vblank_nb: callback for VTG VSYNC notification
  */
 struct sti_compositor {
@@ -77,11 +75,9 @@ struct sti_compositor {
 	struct reset_control *rst_main;
 	struct reset_control *rst_aux;
 	struct sti_mixer *mixer[STI_MAX_MIXER];
+	struct sti_vid *vid[STI_MAX_VID];
 	struct sti_vtg *vtg_main;
 	struct sti_vtg *vtg_aux;
-	struct sti_layer *layer[STI_MAX_LAYER];
-	int nb_mixers;
-	int nb_layers;
 	struct notifier_block vtg_vblank_nb;
 };
 

drivers/gpu/drm/sti/sti_drm_crtc.h → drivers/gpu/drm/sti/sti_crtc.h

@@ -4,19 +4,19 @@
  * License terms:  GNU General Public License (GPL), version 2
  */
 
-#ifndef _STI_DRM_CRTC_H_
-#define _STI_DRM_CRTC_H_
+#ifndef _STI_CRTC_H_
+#define _STI_CRTC_H_
 
 #include <drm/drmP.h>
 
 struct sti_mixer;
 
-int sti_drm_crtc_init(struct drm_device *drm_dev, struct sti_mixer *mixer,
+int sti_crtc_init(struct drm_device *drm_dev, struct sti_mixer *mixer,
 		  struct drm_plane *primary, struct drm_plane *cursor);
-int sti_drm_crtc_enable_vblank(struct drm_device *dev, int crtc);
-void sti_drm_crtc_disable_vblank(struct drm_device *dev, int crtc);
-int sti_drm_crtc_vblank_cb(struct notifier_block *nb,
+int sti_crtc_enable_vblank(struct drm_device *dev, int crtc);
+void sti_crtc_disable_vblank(struct drm_device *dev, int crtc);
+int sti_crtc_vblank_cb(struct notifier_block *nb,
 		       unsigned long event, void *data);
-bool sti_drm_crtc_is_main(struct drm_crtc *drm_crtc);
+bool sti_crtc_is_main(struct drm_crtc *drm_crtc);
 
 #endif

drivers/gpu/drm/sti/sti_cursor.h

@@ -7,6 +7,9 @@
 #ifndef _STI_CURSOR_H_
 #define _STI_CURSOR_H_
 
-struct sti_layer *sti_cursor_create(struct device *dev);
+struct drm_plane *sti_cursor_create(struct drm_device *drm_dev,
+				    struct device *dev, int desc,
+				    void __iomem *baseaddr,
+				    unsigned int possible_crtcs);
 
 #endif

drivers/gpu/drm/sti/sti_drm_plane.c

-/*
- * Copyright (C) STMicroelectronics SA 2014
- * Authors: Benjamin Gaignard <benjamin.gaignard@st.com>
- *          Fabien Dessenne <fabien.dessenne@st.com>
- *          for STMicroelectronics.
- * License terms:  GNU General Public License (GPL), version 2
- */
-
-#include <drm/drmP.h>
-#include <drm/drm_atomic_helper.h>
-#include <drm/drm_plane_helper.h>
-
-#include "sti_compositor.h"
-#include "sti_drm_drv.h"
-#include "sti_drm_plane.h"
-#include "sti_vtg.h"
-
-enum sti_layer_desc sti_layer_default_zorder[] = {
-	STI_GDP_0,
-	STI_VID_0,
-	STI_GDP_1,
-	STI_VID_1,
-	STI_GDP_2,
-	STI_GDP_3,
-};
-
-/* (Background) < GDP0 < VID0 < GDP1 < VID1 < GDP2 < GDP3 < (ForeGround) */
-
-static int
-sti_drm_update_plane(struct drm_plane *plane, 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)
-{
-	struct sti_layer *layer = to_sti_layer(plane);
-	struct sti_mixer *mixer = to_sti_mixer(crtc);
-	int res;
-
-	DRM_DEBUG_KMS("CRTC:%d (%s) drm plane:%d (%s)\n",
-		      crtc->base.id, sti_mixer_to_str(mixer),
-		      plane->base.id, sti_layer_to_str(layer));
-	DRM_DEBUG_KMS("(%dx%d)@(%d,%d)\n", crtc_w, crtc_h, crtc_x, crtc_y);
-
-	res = sti_mixer_set_layer_depth(mixer, layer);
-	if (res) {
-		DRM_ERROR("Can not set layer depth\n");
-		return res;
-	}
-
-	/* src_x are in 16.16 format. */
-	res = sti_layer_prepare(layer, crtc, fb,
-			&crtc->mode, mixer->id,
-			crtc_x, crtc_y, crtc_w, crtc_h,
-			src_x >> 16, src_y >> 16,
-			src_w >> 16, src_h >> 16);
-	if (res) {
-		DRM_ERROR("Layer prepare failed\n");
-		return res;
-	}
-
-	res = sti_layer_commit(layer);
-	if (res) {
-		DRM_ERROR("Layer commit failed\n");
-		return res;
-	}
-
-	res = sti_mixer_set_layer_status(mixer, layer, true);
-	if (res) {
-		DRM_ERROR("Can not enable layer at mixer\n");
-		return res;
-	}
-
-	return 0;
-}
-
-static int sti_drm_disable_plane(struct drm_plane *plane)
-{
-	struct sti_layer *layer;
-	struct sti_mixer *mixer;
-	int lay_res, mix_res;
-
-	if (!plane->crtc) {
-		DRM_DEBUG_DRIVER("drm plane:%d not enabled\n", plane->base.id);
-		return 0;
-	}
-	layer = to_sti_layer(plane);
-	mixer = to_sti_mixer(plane->crtc);
-
-	DRM_DEBUG_DRIVER("CRTC:%d (%s) drm plane:%d (%s)\n",
-			plane->crtc->base.id, sti_mixer_to_str(mixer),
-			plane->base.id, sti_layer_to_str(layer));
-
-	/* Disable layer at mixer level */
-	mix_res = sti_mixer_set_layer_status(mixer, layer, false);
-	if (mix_res)
-		DRM_ERROR("Can not disable layer at mixer\n");
-
-	/* Wait a while to be sure that a Vsync event is received */
-	msleep(WAIT_NEXT_VSYNC_MS);
-
-	/* Then disable layer itself */
-	lay_res = sti_layer_disable(layer);
-	if (lay_res)
-		DRM_ERROR("Layer disable failed\n");
-
-	if (lay_res || mix_res)
-		return -EINVAL;
-
-	return 0;
-}
-
-static void sti_drm_plane_destroy(struct drm_plane *plane)
-{
-	DRM_DEBUG_DRIVER("\n");
-
-	drm_plane_helper_disable(plane);
-	drm_plane_cleanup(plane);
-}
-
-static int sti_drm_plane_set_property(struct drm_plane *plane,
-				      struct drm_property *property,
-				      uint64_t val)
-{
-	struct drm_device *dev = plane->dev;
-	struct sti_drm_private *private = dev->dev_private;
-	struct sti_layer *layer = to_sti_layer(plane);
-
-	DRM_DEBUG_DRIVER("\n");
-
-	if (property == private->plane_zorder_property) {
-		layer->zorder = val;
-		return 0;
-	}
-
-	return -EINVAL;
-}
-
-static struct drm_plane_funcs sti_drm_plane_funcs = {
-	.update_plane = drm_atomic_helper_update_plane,
-	.disable_plane = drm_atomic_helper_disable_plane,
-	.destroy = sti_drm_plane_destroy,
-	.set_property = sti_drm_plane_set_property,
-	.reset = drm_atomic_helper_plane_reset,
-	.atomic_duplicate_state = drm_atomic_helper_plane_duplicate_state,
-	.atomic_destroy_state = drm_atomic_helper_plane_destroy_state,
-};
-
-static int sti_drm_plane_prepare_fb(struct drm_plane *plane,
-				  struct drm_framebuffer *fb,
-				  const struct drm_plane_state *new_state)
-{
-	return 0;
-}
-
-static void sti_drm_plane_cleanup_fb(struct drm_plane *plane,
-				   struct drm_framebuffer *fb,
-				   const struct drm_plane_state *old_fb)
-{
-}
-
-static int sti_drm_plane_atomic_check(struct drm_plane *plane,
-				      struct drm_plane_state *state)
-{
-	return 0;
-}
-
-static void sti_drm_plane_atomic_update(struct drm_plane *plane,
-					struct drm_plane_state *oldstate)
-{
-	struct drm_plane_state *state = plane->state;
-
-	sti_drm_update_plane(plane, state->crtc, state->fb,
-			    state->crtc_x, state->crtc_y,
-			    state->crtc_w, state->crtc_h,
-			    state->src_x, state->src_y,
-			    state->src_w, state->src_h);
-}
-
-static void sti_drm_plane_atomic_disable(struct drm_plane *plane,
-					 struct drm_plane_state *oldstate)
-{
-	sti_drm_disable_plane(plane);
-}
-
-static const struct drm_plane_helper_funcs sti_drm_plane_helpers_funcs = {
-	.prepare_fb = sti_drm_plane_prepare_fb,
-	.cleanup_fb = sti_drm_plane_cleanup_fb,
-	.atomic_check = sti_drm_plane_atomic_check,
-	.atomic_update = sti_drm_plane_atomic_update,
-	.atomic_disable = sti_drm_plane_atomic_disable,
-};
-
-static void sti_drm_plane_attach_zorder_property(struct drm_plane *plane,
-						 uint64_t default_val)
-{
-	struct drm_device *dev = plane->dev;
-	struct sti_drm_private *private = dev->dev_private;
-	struct drm_property *prop;
-	struct sti_layer *layer = to_sti_layer(plane);
-
-	prop = private->plane_zorder_property;
-	if (!prop) {
-		prop = drm_property_create_range(dev, 0, "zpos", 0,
-						 GAM_MIXER_NB_DEPTH_LEVEL - 1);
-		if (!prop)
-			return;
-
-		private->plane_zorder_property = prop;
-	}
-
-	drm_object_attach_property(&plane->base, prop, default_val);
-	layer->zorder = default_val;
-}
-
-struct drm_plane *sti_drm_plane_init(struct drm_device *dev,
-				     struct sti_layer *layer,
-				     unsigned int possible_crtcs,
-				     enum drm_plane_type type)
-{
-	int err, i;
-	uint64_t default_zorder = 0;
-
-	err = drm_universal_plane_init(dev, &layer->plane, possible_crtcs,
-			     &sti_drm_plane_funcs,
-			     sti_layer_get_formats(layer),
-			     sti_layer_get_nb_formats(layer), type);
-	if (err) {
-		DRM_ERROR("Failed to initialize plane\n");
-		return NULL;
-	}
-
-	drm_plane_helper_add(&layer->plane, &sti_drm_plane_helpers_funcs);
-
-	for (i = 0; i < ARRAY_SIZE(sti_layer_default_zorder); i++)
-		if (sti_layer_default_zorder[i] == layer->desc)
-			break;
-
-	default_zorder = i + 1;
-
-	if (type == DRM_PLANE_TYPE_OVERLAY)
-		sti_drm_plane_attach_zorder_property(&layer->plane,
-				default_zorder);
-
-	DRM_DEBUG_DRIVER("drm plane:%d mapped to %s with zorder:%llu\n",
-			 layer->plane.base.id,
-			 sti_layer_to_str(layer), default_zorder);
-
-	return &layer->plane;
-}
-EXPORT_SYMBOL(sti_drm_plane_init);

drivers/gpu/drm/sti/sti_drm_plane.h

-/*
- * Copyright (C) STMicroelectronics SA 2014
- * Author: Benjamin Gaignard <benjamin.gaignard@st.com> for STMicroelectronics.
- * License terms:  GNU General Public License (GPL), version 2
- */
-
-#ifndef _STI_DRM_PLANE_H_
-#define _STI_DRM_PLANE_H_
-
-#include <drm/drmP.h>
-
-struct sti_layer;
-
-struct drm_plane *sti_drm_plane_init(struct drm_device *dev,
-		struct sti_layer *layer,
-		unsigned int possible_crtcs,
-		enum drm_plane_type type);
-#endif

drivers/gpu/drm/sti/sti_drm_drv.c → drivers/gpu/drm/sti/sti_drv.c

@@ -18,8 +18,8 @@
 #include <drm/drm_gem_cma_helper.h>
 #include <drm/drm_fb_cma_helper.h>
 
-#include "sti_drm_drv.h"
-#include "sti_drm_crtc.h"
+#include "sti_crtc.h"
+#include "sti_drv.h"
 
 #define DRIVER_NAME	"sti"
 #define DRIVER_DESC	"STMicroelectronics SoC DRM"
@@ -30,14 +30,14 @@
 #define STI_MAX_FB_HEIGHT	4096
 #define STI_MAX_FB_WIDTH	4096
 
-static void sti_drm_atomic_schedule(struct sti_drm_private *private,
+static void sti_atomic_schedule(struct sti_private *private,
 				struct drm_atomic_state *state)
 {
 	private->commit.state = state;
 	schedule_work(&private->commit.work);
 }
 
-static void sti_drm_atomic_complete(struct sti_drm_private *private,
+static void sti_atomic_complete(struct sti_private *private,
 				struct drm_atomic_state *state)
 {
 	struct drm_device *drm = private->drm_dev;
@@ -68,18 +68,18 @@ static void sti_drm_atomic_complete(struct sti_drm_private *private,
 	drm_atomic_state_free(state);
 }
 
-static void sti_drm_atomic_work(struct work_struct *work)
+static void sti_atomic_work(struct work_struct *work)
 {
-	struct sti_drm_private *private = container_of(work,
-			struct sti_drm_private, commit.work);
+	struct sti_private *private = container_of(work,
+			struct sti_private, commit.work);
 
-	sti_drm_atomic_complete(private, private->commit.state);
+	sti_atomic_complete(private, private->commit.state);
 }
 
-static int sti_drm_atomic_commit(struct drm_device *drm,
+static int sti_atomic_commit(struct drm_device *drm,
 			     struct drm_atomic_state *state, bool async)
 {
-	struct sti_drm_private *private = drm->dev_private;
+	struct sti_private *private = drm->dev_private;
 	int err;
 
 	err = drm_atomic_helper_prepare_planes(drm, state);
@@ -99,21 +99,21 @@ static int sti_drm_atomic_commit(struct drm_device *drm,
 	drm_atomic_helper_swap_state(drm, state);
 
 	if (async)
-		sti_drm_atomic_schedule(private, state);
+		sti_atomic_schedule(private, state);
 	else
-		sti_drm_atomic_complete(private, state);
+		sti_atomic_complete(private, state);
 
 	mutex_unlock(&private->commit.lock);
 	return 0;
 }
 
-static struct drm_mode_config_funcs sti_drm_mode_config_funcs = {
+static struct drm_mode_config_funcs sti_mode_config_funcs = {
 	.fb_create = drm_fb_cma_create,
 	.atomic_check = drm_atomic_helper_check,
-	.atomic_commit = sti_drm_atomic_commit,
+	.atomic_commit = sti_atomic_commit,
 };
 
-static void sti_drm_mode_config_init(struct drm_device *dev)
+static void sti_mode_config_init(struct drm_device *dev)
 {
 	dev->mode_config.min_width = 0;
 	dev->mode_config.min_height = 0;
@@ -126,15 +126,15 @@ static void sti_drm_mode_config_init(struct drm_device *dev)
 	dev->mode_config.max_width = STI_MAX_FB_HEIGHT;
 	dev->mode_config.max_height = STI_MAX_FB_WIDTH;
 
-	dev->mode_config.funcs = &sti_drm_mode_config_funcs;
+	dev->mode_config.funcs = &sti_mode_config_funcs;
 }
 
-static int sti_drm_load(struct drm_device *dev, unsigned long flags)
+static int sti_load(struct drm_device *dev, unsigned long flags)
 {
-	struct sti_drm_private *private;
+	struct sti_private *private;
 	int ret;
 
-	private = kzalloc(sizeof(struct sti_drm_private), GFP_KERNEL);
+	private = kzalloc(sizeof(*private), GFP_KERNEL);
 	if (!private) {
 		DRM_ERROR("Failed to allocate private\n");
 		return -ENOMEM;
@@ -143,12 +143,12 @@ static int sti_drm_load(struct drm_device *dev, unsigned long flags)
 	private->drm_dev = dev;
 
 	mutex_init(&private->commit.lock);
-	INIT_WORK(&private->commit.work, sti_drm_atomic_work);
+	INIT_WORK(&private->commit.work, sti_atomic_work);
 
 	drm_mode_config_init(dev);
 	drm_kms_helper_poll_init(dev);
 
-	sti_drm_mode_config_init(dev);
+	sti_mode_config_init(dev);
 
 	ret = component_bind_all(dev->dev, dev);
 	if (ret) {
@@ -168,7 +168,7 @@ static int sti_drm_load(struct drm_device *dev, unsigned long flags)
 	return 0;
 }
 
-static const struct file_operations sti_drm_driver_fops = {
+static const struct file_operations sti_driver_fops = {
 	.owner = THIS_MODULE,
 	.open = drm_open,
 	.mmap = drm_gem_cma_mmap,
@@ -181,7 +181,7 @@ static const struct file_operations sti_drm_driver_fops = {
 	.release = drm_release,
 };
 
-static struct dma_buf *sti_drm_gem_prime_export(struct drm_device *dev,
+static struct dma_buf *sti_gem_prime_export(struct drm_device *dev,
 					    struct drm_gem_object *obj,
 					    int flags)
 {
@@ -190,24 +190,24 @@ static struct dma_buf *sti_drm_gem_prime_export(struct drm_device *dev,
 	return drm_gem_prime_export(dev, obj, flags);
 }
 
-static struct drm_driver sti_drm_driver = {
+static struct drm_driver sti_driver = {
 	.driver_features = DRIVER_HAVE_IRQ | DRIVER_MODESET |
 	    DRIVER_GEM | DRIVER_PRIME,
-	.load = sti_drm_load,
+	.load = sti_load,
 	.gem_free_object = drm_gem_cma_free_object,
 	.gem_vm_ops = &drm_gem_cma_vm_ops,
 	.dumb_create = drm_gem_cma_dumb_create,
 	.dumb_map_offset = drm_gem_cma_dumb_map_offset,
 	.dumb_destroy = drm_gem_dumb_destroy,
-	.fops = &sti_drm_driver_fops,
+	.fops = &sti_driver_fops,
 
 	.get_vblank_counter = drm_vblank_count,
-	.enable_vblank = sti_drm_crtc_enable_vblank,
-	.disable_vblank = sti_drm_crtc_disable_vblank,
+	.enable_vblank = sti_crtc_enable_vblank,
+	.disable_vblank = sti_crtc_disable_vblank,
 
 	.prime_handle_to_fd = drm_gem_prime_handle_to_fd,
 	.prime_fd_to_handle = drm_gem_prime_fd_to_handle,
-	.gem_prime_export = sti_drm_gem_prime_export,
+	.gem_prime_export = sti_gem_prime_export,
 	.gem_prime_import = drm_gem_prime_import,
 	.gem_prime_get_sg_table = drm_gem_cma_prime_get_sg_table,
 	.gem_prime_import_sg_table = drm_gem_cma_prime_import_sg_table,
@@ -227,30 +227,32 @@ static int compare_of(struct device *dev, void *data)
 	return dev->of_node == data;
 }
 
-static int sti_drm_bind(struct device *dev)
+static int sti_bind(struct device *dev)
 {
-	return drm_platform_init(&sti_drm_driver, to_platform_device(dev));
+	return drm_platform_init(&sti_driver, to_platform_device(dev));
 }
 
-static void sti_drm_unbind(struct device *dev)
+static void sti_unbind(struct device *dev)
 {
 	drm_put_dev(dev_get_drvdata(dev));
 }
 
-static const struct component_master_ops sti_drm_ops = {
-	.bind = sti_drm_bind,
-	.unbind = sti_drm_unbind,
+static const struct component_master_ops sti_ops = {
+	.bind = sti_bind,
+	.unbind = sti_unbind,
 };
 
-static int sti_drm_master_probe(struct platform_device *pdev)
+static int sti_platform_probe(struct platform_device *pdev)
 {
 	struct device *dev = &pdev->dev;
-	struct device_node *node = dev->parent->of_node;
+	struct device_node *node = dev->of_node;
 	struct device_node *child_np;
 	struct component_match *match = NULL;
 
 	dma_set_coherent_mask(dev, DMA_BIT_MASK(32));
 
+	of_platform_populate(node, NULL, NULL, dev);
+
 	child_np = of_get_next_available_child(node, NULL);
 
 	while (child_np) {
@@ -259,68 +261,33 @@ static int sti_drm_master_probe(struct platform_device *pdev)
 		child_np = of_get_next_available_child(node, child_np);
 	}
 
-	return component_master_add_with_match(dev, &sti_drm_ops, match);
-}
-
-static int sti_drm_master_remove(struct platform_device *pdev)
-{
-	component_master_del(&pdev->dev, &sti_drm_ops);
-	return 0;
+	return component_master_add_with_match(dev, &sti_ops, match);
 }
 
-static struct platform_driver sti_drm_master_driver = {
-	.probe = sti_drm_master_probe,
-	.remove = sti_drm_master_remove,
-	.driver = {
-		.name = DRIVER_NAME "__master",
-	},
-};
-
-static int sti_drm_platform_probe(struct platform_device *pdev)
+static int sti_platform_remove(struct platform_device *pdev)
 {
-	struct device *dev = &pdev->dev;
-	struct device_node *node = dev->of_node;
-	struct platform_device *master;
-
-	of_platform_populate(node, NULL, NULL, dev);
-
-	platform_driver_register(&sti_drm_master_driver);
-	master = platform_device_register_resndata(dev,
-			DRIVER_NAME "__master", -1,
-			NULL, 0, NULL, 0);
-	if (IS_ERR(master))
-               return PTR_ERR(master);
-
-	platform_set_drvdata(pdev, master);
-	return 0;
-}
-
-static int sti_drm_platform_remove(struct platform_device *pdev)
-{
-	struct platform_device *master = platform_get_drvdata(pdev);
-
+	component_master_del(&pdev->dev, &sti_ops);
 	of_platform_depopulate(&pdev->dev);
-	platform_device_unregister(master);
-	platform_driver_unregister(&sti_drm_master_driver);
+
 	return 0;
 }
 
-static const struct of_device_id sti_drm_dt_ids[] = {
+static const struct of_device_id sti_dt_ids[] = {
 	{ .compatible = "st,sti-display-subsystem", },
 	{ /* end node */ },
 };
-MODULE_DEVICE_TABLE(of, sti_drm_dt_ids);
+MODULE_DEVICE_TABLE(of, sti_dt_ids);
 
-static struct platform_driver sti_drm_platform_driver = {
-	.probe = sti_drm_platform_probe,
-	.remove = sti_drm_platform_remove,
+static struct platform_driver sti_platform_driver = {
+	.probe = sti_platform_probe,
+	.remove = sti_platform_remove,
 	.driver = {
 		.name = DRIVER_NAME,
-		.of_match_table = sti_drm_dt_ids,
+		.of_match_table = sti_dt_ids,
 	},
 };
 
-module_platform_driver(sti_drm_platform_driver);
+module_platform_driver(sti_platform_driver);
 
 MODULE_AUTHOR("Benjamin Gaignard <benjamin.gaignard@st.com>");
 MODULE_DESCRIPTION("STMicroelectronics SoC DRM driver");

drivers/gpu/drm/sti/sti_drm_drv.h → drivers/gpu/drm/sti/sti_drv.h

@@ -4,8 +4,8 @@
  * License terms:  GNU General Public License (GPL), version 2
  */
 
-#ifndef _STI_DRM_DRV_H_
-#define _STI_DRM_DRV_H_
+#ifndef _STI_DRV_H_
+#define _STI_DRV_H_
 
 #include <drm/drmP.h>
 
@@ -20,7 +20,7 @@ struct sti_tvout;
  * @plane_zorder_property: z-order property for CRTC planes
  * @drm_dev:               drm device
  */
-struct sti_drm_private {
+struct sti_private {
 	struct sti_compositor *compo;
 	struct drm_property *plane_zorder_property;
 	struct drm_device *drm_dev;

drivers/gpu/drm/sti/sti_gdp.h

@@ -11,6 +11,9 @@
 
 #include <linux/types.h>
 
-struct sti_layer *sti_gdp_create(struct device *dev, int id);
-
+struct drm_plane *sti_gdp_create(struct drm_device *drm_dev,
+				 struct device *dev, int desc,
+				 void __iomem *baseaddr,
+				 unsigned int possible_crtcs,
+				 enum drm_plane_type type);
 #endif

drivers/gpu/drm/sti/sti_hdmi.c

@@ -588,7 +588,7 @@ static int sti_hdmi_connector_get_modes(struct drm_connector *connector)
 	return count;
 
 fail:
-	DRM_ERROR("Can not read HDMI EDID\n");
+	DRM_ERROR("Can't read HDMI EDID\n");
 	return 0;
 }
 
@@ -693,21 +693,8 @@ static int sti_hdmi_bind(struct device *dev, struct device *master, void *data)
 	struct sti_hdmi_connector *connector;
 	struct drm_connector *drm_connector;
 	struct drm_bridge *bridge;
-	struct device_node *ddc;
 	int err;
 
-	ddc = of_parse_phandle(dev->of_node, "ddc", 0);
-	if (ddc) {
-		hdmi->ddc_adapt = of_find_i2c_adapter_by_node(ddc);
-		if (!hdmi->ddc_adapt) {
-			err = -EPROBE_DEFER;
-			of_node_put(ddc);
-			return err;
-		}
-
-		of_node_put(ddc);
-	}
-
 	/* Set the drm device handle */
 	hdmi->drm_dev = drm_dev;
 
@@ -796,6 +783,7 @@ static int sti_hdmi_probe(struct platform_device *pdev)
 	struct sti_hdmi *hdmi;
 	struct device_node *np = dev->of_node;
 	struct resource *res;
+	struct device_node *ddc;
 	int ret;
 
 	DRM_INFO("%s\n", __func__);
@@ -804,6 +792,17 @@ static int sti_hdmi_probe(struct platform_device *pdev)
 	if (!hdmi)
 		return -ENOMEM;
 
+	ddc = of_parse_phandle(pdev->dev.of_node, "ddc", 0);
+	if (ddc) {
+		hdmi->ddc_adapt = of_find_i2c_adapter_by_node(ddc);
+		if (!hdmi->ddc_adapt) {
+			of_node_put(ddc);
+			return -EPROBE_DEFER;
+		}
+
+		of_node_put(ddc);
+	}
+
 	hdmi->dev = pdev->dev;
 
 	/* Get resources */

drivers/gpu/drm/sti/sti_hqvdp.h

-/*
- * Copyright (C) STMicroelectronics SA 2014
- * Authors: Fabien Dessenne <fabien.dessenne@st.com> for STMicroelectronics.
- * License terms:  GNU General Public License (GPL), version 2
- */
-
-#ifndef _STI_HQVDP_H_
-#define _STI_HQVDP_H_
-
-struct sti_layer *sti_hqvdp_create(struct device *dev);
-
-#endif

drivers/gpu/drm/sti/sti_layer.c

-/*
- * Copyright (C) STMicroelectronics SA 2014
- * Authors: Benjamin Gaignard <benjamin.gaignard@st.com>
- *          Fabien Dessenne <fabien.dessenne@st.com>
- *          for STMicroelectronics.
- * License terms:  GNU General Public License (GPL), version 2
- */
-
-#include <drm/drmP.h>
-#include <drm/drm_gem_cma_helper.h>
-#include <drm/drm_fb_cma_helper.h>
-
-#include "sti_compositor.h"
-#include "sti_cursor.h"
-#include "sti_gdp.h"
-#include "sti_hqvdp.h"
-#include "sti_layer.h"
-#include "sti_vid.h"
-
-const char *sti_layer_to_str(struct sti_layer *layer)
-{
-	switch (layer->desc) {
-	case STI_GDP_0:
-		return "GDP0";
-	case STI_GDP_1:
-		return "GDP1";
-	case STI_GDP_2:
-		return "GDP2";
-	case STI_GDP_3:
-		return "GDP3";
-	case STI_VID_0:
-		return "VID0";
-	case STI_VID_1:
-		return "VID1";
-	case STI_CURSOR:
-		return "CURSOR";
-	case STI_HQVDP_0:
-		return "HQVDP0";
-	default:
-		return "<UNKNOWN LAYER>";
-	}
-}
-EXPORT_SYMBOL(sti_layer_to_str);
-
-struct sti_layer *sti_layer_create(struct device *dev, int desc,
-				   void __iomem *baseaddr)
-{
-
-	struct sti_layer *layer = NULL;
-
-	switch (desc & STI_LAYER_TYPE_MASK) {
-	case STI_GDP:
-		layer = sti_gdp_create(dev, desc);
-		break;
-	case STI_VID:
-		layer = sti_vid_create(dev);
-		break;
-	case STI_CUR:
-		layer = sti_cursor_create(dev);
-		break;
-	case STI_VDP:
-		layer = sti_hqvdp_create(dev);
-		break;
-	}
-
-	if (!layer) {
-		DRM_ERROR("Failed to create layer\n");
-		return NULL;
-	}
-
-	layer->desc = desc;
-	layer->dev = dev;
-	layer->regs = baseaddr;
-
-	layer->ops->init(layer);
-
-	DRM_DEBUG_DRIVER("%s created\n", sti_layer_to_str(layer));
-
-	return layer;
-}
-EXPORT_SYMBOL(sti_layer_create);
-
-int sti_layer_prepare(struct sti_layer *layer,
-		      struct drm_crtc *crtc,
-		      struct drm_framebuffer *fb,
-		      struct drm_display_mode *mode, int mixer_id,
-		      int dest_x, int dest_y, int dest_w, int dest_h,
-		      int src_x, int src_y, int src_w, int src_h)
-{
-	int ret;
-	unsigned int i;
-	struct drm_gem_cma_object *cma_obj;
-
-	if (!layer || !fb || !mode) {
-		DRM_ERROR("Null fb, layer or mode\n");
-		return 1;
-	}
-
-	cma_obj = drm_fb_cma_get_gem_obj(fb, 0);
-	if (!cma_obj) {
-		DRM_ERROR("Can't get CMA GEM object for fb\n");
-		return 1;
-	}
-
-	layer->crtc = crtc;
-	layer->fb = fb;
-	layer->mode = mode;
-	layer->mixer_id = mixer_id;
-	layer->dst_x = dest_x;
-	layer->dst_y = dest_y;
-	layer->dst_w = clamp_val(dest_w, 0, mode->crtc_hdisplay - dest_x);
-	layer->dst_h = clamp_val(dest_h, 0, mode->crtc_vdisplay - dest_y);
-	layer->src_x = src_x;
-	layer->src_y = src_y;
-	layer->src_w = src_w;
-	layer->src_h = src_h;
-	layer->format = fb->pixel_format;
-	layer->vaddr = cma_obj->vaddr;
-	layer->paddr = cma_obj->paddr;
-	for (i = 0; i < 4; i++) {
-		layer->pitches[i] = fb->pitches[i];
-		layer->offsets[i] = fb->offsets[i];
-	}
-
-	DRM_DEBUG_DRIVER("%s is associated with mixer_id %d\n",
-			 sti_layer_to_str(layer),
-			 layer->mixer_id);
-	DRM_DEBUG_DRIVER("%s dst=(%dx%d)@(%d,%d) - src=(%dx%d)@(%d,%d)\n",
-			 sti_layer_to_str(layer),
-			 layer->dst_w, layer->dst_h, layer->dst_x, layer->dst_y,
-			 layer->src_w, layer->src_h, layer->src_x,
-			 layer->src_y);
-
-	DRM_DEBUG_DRIVER("drm FB:%d format:%.4s phys@:0x%lx\n", fb->base.id,
-			 (char *)&layer->format, (unsigned long)layer->paddr);
-
-	if (!layer->ops->prepare)
-		goto err_no_prepare;
-
-	ret = layer->ops->prepare(layer, !layer->enabled);
-	if (!ret)
-		layer->enabled = true;
-
-	return ret;
-
-err_no_prepare:
-	DRM_ERROR("Cannot prepare\n");
-	return 1;
-}
-
-int sti_layer_commit(struct sti_layer *layer)
-{
-	if (!layer)
-		return 1;
-
-	if (!layer->ops->commit)
-		goto err_no_commit;
-
-	return layer->ops->commit(layer);
-
-err_no_commit:
-	DRM_ERROR("Cannot commit\n");
-	return 1;
-}
-
-int sti_layer_disable(struct sti_layer *layer)
-{
-	int ret;
-
-	DRM_DEBUG_DRIVER("%s\n", sti_layer_to_str(layer));
-	if (!layer)
-		return 1;
-
-	if (!layer->enabled)
-		return 0;
-
-	if (!layer->ops->disable)
-		goto err_no_disable;
-
-	ret = layer->ops->disable(layer);
-	if (!ret)
-		layer->enabled = false;
-	else
-		DRM_ERROR("Disable failed\n");
-
-	return ret;
-
-err_no_disable:
-	DRM_ERROR("Cannot disable\n");
-	return 1;
-}
-
-const uint32_t *sti_layer_get_formats(struct sti_layer *layer)
-{
-	if (!layer)
-		return NULL;
-
-	if (!layer->ops->get_formats)
-		return NULL;
-
-	return layer->ops->get_formats(layer);
-}
-
-unsigned int sti_layer_get_nb_formats(struct sti_layer *layer)
-{
-	if (!layer)
-		return 0;
-
-	if (!layer->ops->get_nb_formats)
-		return 0;
-
-	return layer->ops->get_nb_formats(layer);
-}

drivers/gpu/drm/sti/sti_layer.h

-/*
- * Copyright (C) STMicroelectronics SA 2014
- * Authors: Benjamin Gaignard <benjamin.gaignard@st.com>
- *          Fabien Dessenne <fabien.dessenne@st.com>
- *          for STMicroelectronics.
- * License terms:  GNU General Public License (GPL), version 2
- */
-
-#ifndef _STI_LAYER_H_
-#define _STI_LAYER_H_
-
-#include <drm/drmP.h>
-
-#define to_sti_layer(x) container_of(x, struct sti_layer, plane)
-
-#define STI_LAYER_TYPE_SHIFT 8
-#define STI_LAYER_TYPE_MASK (~((1<<STI_LAYER_TYPE_SHIFT)-1))
-
-struct sti_layer;
-
-enum sti_layer_type {
-	STI_GDP = 1 << STI_LAYER_TYPE_SHIFT,
-	STI_VID = 2 << STI_LAYER_TYPE_SHIFT,
-	STI_CUR = 3 << STI_LAYER_TYPE_SHIFT,
-	STI_BCK = 4 << STI_LAYER_TYPE_SHIFT,
-	STI_VDP = 5 << STI_LAYER_TYPE_SHIFT
-};
-
-enum sti_layer_id_of_type {
-	STI_ID_0 = 0,
-	STI_ID_1 = 1,
-	STI_ID_2 = 2,
-	STI_ID_3 = 3
-};
-
-enum sti_layer_desc {
-	STI_GDP_0       = STI_GDP | STI_ID_0,
-	STI_GDP_1       = STI_GDP | STI_ID_1,
-	STI_GDP_2       = STI_GDP | STI_ID_2,
-	STI_GDP_3       = STI_GDP | STI_ID_3,
-	STI_VID_0       = STI_VID | STI_ID_0,
-	STI_VID_1       = STI_VID | STI_ID_1,
-	STI_HQVDP_0     = STI_VDP | STI_ID_0,
-	STI_CURSOR      = STI_CUR,
-	STI_BACK        = STI_BCK
-};
-
-/**
- * STI layer functions structure
- *
- * @get_formats:	get layer supported formats
- * @get_nb_formats:	get number of format supported
- * @init:               initialize the layer
- * @prepare:		prepare layer before rendering
- * @commit:		set layer for rendering
- * @disable:		disable layer
- */
-struct sti_layer_funcs {
-	const uint32_t* (*get_formats)(struct sti_layer *layer);
-	unsigned int (*get_nb_formats)(struct sti_layer *layer);
-	void (*init)(struct sti_layer *layer);
-	int (*prepare)(struct sti_layer *layer, bool first_prepare);
-	int (*commit)(struct sti_layer *layer);
-	int (*disable)(struct sti_layer *layer);
-};
-
-/**
- * STI layer structure
- *
- * @plane:              drm plane it is bound to (if any)
- * @fb:                 drm fb it is bound to
- * @crtc:               crtc it is bound to
- * @mode:               display mode
- * @desc:               layer type & id
- * @device:		driver device
- * @regs:		layer registers
- * @ops:                layer functions
- * @zorder:             layer z-order
- * @mixer_id:           id of the mixer used to display the layer
- * @enabled:            to know if the layer is active or not
- * @src_x src_y:        coordinates of the input (fb) area
- * @src_w src_h:        size of the input (fb) area
- * @dst_x dst_y:        coordinates of the output (crtc) area
- * @dst_w dst_h:        size of the output (crtc) area
- * @format:             format
- * @pitches:            pitch of 'planes' (eg: Y, U, V)
- * @offsets:            offset of 'planes'
- * @vaddr:              virtual address of the input buffer
- * @paddr:              physical address of the input buffer
- */
-struct sti_layer {
-	struct drm_plane plane;
-	struct drm_framebuffer *fb;
-	struct drm_crtc *crtc;
-	struct drm_display_mode *mode;
-	enum sti_layer_desc desc;
-	struct device *dev;
-	void __iomem *regs;
-	const struct sti_layer_funcs *ops;
-	int zorder;
-	int mixer_id;
-	bool enabled;
-	int src_x, src_y;
-	int src_w, src_h;
-	int dst_x, dst_y;
-	int dst_w, dst_h;
-	uint32_t format;
-	unsigned int pitches[4];
-	unsigned int offsets[4];
-	void *vaddr;
-	dma_addr_t paddr;
-};
-
-struct sti_layer *sti_layer_create(struct device *dev, int desc,
-			void __iomem *baseaddr);
-int sti_layer_prepare(struct sti_layer *layer,
-			struct drm_crtc *crtc,
-			struct drm_framebuffer *fb,
-			struct drm_display_mode *mode,
-			int mixer_id,
-			int dest_x, int dest_y,
-			int dest_w, int dest_h,
-			int src_x, int src_y,
-			int src_w, int src_h);
-int sti_layer_commit(struct sti_layer *layer);
-int sti_layer_disable(struct sti_layer *layer);
-const uint32_t *sti_layer_get_formats(struct sti_layer *layer);
-unsigned int sti_layer_get_nb_formats(struct sti_layer *layer);
-const char *sti_layer_to_str(struct sti_layer *layer);
-
-#endif

drivers/gpu/drm/sti/sti_mixer.c

@@ -58,6 +58,7 @@ const char *sti_mixer_to_str(struct sti_mixer *mixer)
 		return "<UNKNOWN MIXER>";
 	}
 }
+EXPORT_SYMBOL(sti_mixer_to_str);
 
 static inline u32 sti_mixer_reg_read(struct sti_mixer *mixer, u32 reg_id)
 {
@@ -101,52 +102,57 @@ static void sti_mixer_set_background_area(struct sti_mixer *mixer,
 	sti_mixer_reg_write(mixer, GAM_MIXER_BCS, yds << 16 | xds);
 }
 
-int sti_mixer_set_layer_depth(struct sti_mixer *mixer, struct sti_layer *layer)
+int sti_mixer_set_plane_depth(struct sti_mixer *mixer, struct sti_plane *plane)
 {
-	int layer_id = 0, depth = layer->zorder;
+	int plane_id, depth = plane->zorder;
+	unsigned int i;
 	u32 mask, val;
 
-	if (depth >= GAM_MIXER_NB_DEPTH_LEVEL)
+	if ((depth < 1) || (depth > GAM_MIXER_NB_DEPTH_LEVEL))
 		return 1;
 
-	switch (layer->desc) {
+	switch (plane->desc) {
 	case STI_GDP_0:
-		layer_id = GAM_DEPTH_GDP0_ID;
+		plane_id = GAM_DEPTH_GDP0_ID;
 		break;
 	case STI_GDP_1:
-		layer_id = GAM_DEPTH_GDP1_ID;
+		plane_id = GAM_DEPTH_GDP1_ID;
 		break;
 	case STI_GDP_2:
-		layer_id = GAM_DEPTH_GDP2_ID;
+		plane_id = GAM_DEPTH_GDP2_ID;
 		break;
 	case STI_GDP_3:
-		layer_id = GAM_DEPTH_GDP3_ID;
+		plane_id = GAM_DEPTH_GDP3_ID;
 		break;
-	case STI_VID_0:
 	case STI_HQVDP_0:
-		layer_id = GAM_DEPTH_VID0_ID;
-		break;
-	case STI_VID_1:
-		layer_id = GAM_DEPTH_VID1_ID;
+		plane_id = GAM_DEPTH_VID0_ID;
 		break;
 	case STI_CURSOR:
 		/* no need to set depth for cursor */
 		return 0;
 	default:
-		DRM_ERROR("Unknown layer %d\n", layer->desc);
+		DRM_ERROR("Unknown plane %d\n", plane->desc);
 		return 1;
 	}
-	mask = GAM_DEPTH_MASK_ID << (3 * depth);
-	layer_id = layer_id << (3 * depth);
+
+	/* Search if a previous depth was already assigned to the plane */
+	val = sti_mixer_reg_read(mixer, GAM_MIXER_CRB);
+	for (i = 0; i < GAM_MIXER_NB_DEPTH_LEVEL; i++) {
+		mask = GAM_DEPTH_MASK_ID << (3 * i);
+		if ((val & mask) == plane_id << (3 * i))
+			break;
+	}
+
+	mask |= GAM_DEPTH_MASK_ID << (3 * (depth - 1));
+	plane_id = plane_id << (3 * (depth - 1));
 
 	DRM_DEBUG_DRIVER("%s %s depth=%d\n", sti_mixer_to_str(mixer),
-			 sti_layer_to_str(layer), depth);
+			 sti_plane_to_str(plane), depth);
 	dev_dbg(mixer->dev, "GAM_MIXER_CRB val 0x%x mask 0x%x\n",
-		layer_id, mask);
+		plane_id, mask);
 
-	val = sti_mixer_reg_read(mixer, GAM_MIXER_CRB);
 	val &= ~mask;
-	val |= layer_id;
+	val |= plane_id;
 	sti_mixer_reg_write(mixer, GAM_MIXER_CRB, val);
 
 	dev_dbg(mixer->dev, "Read GAM_MIXER_CRB 0x%x\n",
@@ -176,9 +182,9 @@ int sti_mixer_active_video_area(struct sti_mixer *mixer,
 	return 0;
 }
 
-static u32 sti_mixer_get_layer_mask(struct sti_layer *layer)
+static u32 sti_mixer_get_plane_mask(struct sti_plane *plane)
 {
-	switch (layer->desc) {
+	switch (plane->desc) {
 	case STI_BACK:
 		return GAM_CTL_BACK_MASK;
 	case STI_GDP_0:
@@ -189,11 +195,8 @@ static u32 sti_mixer_get_layer_mask(struct sti_layer *layer)
 		return GAM_CTL_GDP2_MASK;
 	case STI_GDP_3:
 		return GAM_CTL_GDP3_MASK;
-	case STI_VID_0:
 	case STI_HQVDP_0:
 		return GAM_CTL_VID0_MASK;
-	case STI_VID_1:
-		return GAM_CTL_VID1_MASK;
 	case STI_CURSOR:
 		return GAM_CTL_CURSOR_MASK;
 	default:
@@ -201,17 +204,17 @@ static u32 sti_mixer_get_layer_mask(struct sti_layer *layer)
 	}
 }
 
-int sti_mixer_set_layer_status(struct sti_mixer *mixer,
-			       struct sti_layer *layer, bool status)
+int sti_mixer_set_plane_status(struct sti_mixer *mixer,
+			       struct sti_plane *plane, bool status)
 {
 	u32 mask, val;
 
 	DRM_DEBUG_DRIVER("%s %s %s\n", status ? "enable" : "disable",
-			 sti_mixer_to_str(mixer), sti_layer_to_str(layer));
+			 sti_mixer_to_str(mixer), sti_plane_to_str(plane));
 
-	mask = sti_mixer_get_layer_mask(layer);
+	mask = sti_mixer_get_plane_mask(plane);
 	if (!mask) {
-		DRM_ERROR("Can not find layer mask\n");
+		DRM_ERROR("Can't find layer mask\n");
 		return -EINVAL;
 	}
 
@@ -223,15 +226,6 @@ int sti_mixer_set_layer_status(struct sti_mixer *mixer,
 	return 0;
 }
 
-void sti_mixer_clear_all_layers(struct sti_mixer *mixer)
-{
-	u32 val;
-
-	DRM_DEBUG_DRIVER("%s clear all layer\n", sti_mixer_to_str(mixer));
-	val = sti_mixer_reg_read(mixer, GAM_MIXER_CTL) & 0xFFFF0000;
-	sti_mixer_reg_write(mixer, GAM_MIXER_CTL, val);
-}
-
 void sti_mixer_set_matrix(struct sti_mixer *mixer)
 {
 	unsigned int i;

drivers/gpu/drm/sti/sti_mixer.h

@@ -11,10 +11,16 @@
 
 #include <drm/drmP.h>
 
-#include "sti_layer.h"
+#include "sti_plane.h"
 
 #define to_sti_mixer(x) container_of(x, struct sti_mixer, drm_crtc)
 
+enum sti_mixer_status {
+	STI_MIXER_READY,
+	STI_MIXER_DISABLING,
+	STI_MIXER_DISABLED,
+};
+
 /**
  * STI Mixer subdevice structure
  *
@@ -23,7 +29,7 @@
  * @id: id of the mixer
  * @drm_crtc: crtc object link to the mixer
  * @pending_event: set if a flip event is pending on crtc
- * @enabled: to know if the mixer is active or not
+ * @status: to know the status of the mixer
  */
 struct sti_mixer {
 	struct device *dev;
@@ -31,7 +37,7 @@ struct sti_mixer {
 	int id;
 	struct drm_crtc drm_crtc;
 	struct drm_pending_vblank_event *pending_event;
-	bool enabled;
+	enum sti_mixer_status status;
 };
 
 const char *sti_mixer_to_str(struct sti_mixer *mixer);
@@ -39,17 +45,16 @@ const char *sti_mixer_to_str(struct sti_mixer *mixer);
 struct sti_mixer *sti_mixer_create(struct device *dev, int id,
 				   void __iomem *baseaddr);
 
-int sti_mixer_set_layer_status(struct sti_mixer *mixer,
-		struct sti_layer *layer, bool status);
-void sti_mixer_clear_all_layers(struct sti_mixer *mixer);
-int sti_mixer_set_layer_depth(struct sti_mixer *mixer, struct sti_layer *layer);
+int sti_mixer_set_plane_status(struct sti_mixer *mixer,
+			       struct sti_plane *plane, bool status);
+int sti_mixer_set_plane_depth(struct sti_mixer *mixer, struct sti_plane *plane);
 int sti_mixer_active_video_area(struct sti_mixer *mixer,
 				struct drm_display_mode *mode);
 
 void sti_mixer_set_background_status(struct sti_mixer *mixer, bool enable);
 
 /* depth in Cross-bar control = z order */
-#define GAM_MIXER_NB_DEPTH_LEVEL 7
+#define GAM_MIXER_NB_DEPTH_LEVEL 6
 
 #define STI_MIXER_MAIN 0
 #define STI_MIXER_AUX  1

drivers/gpu/drm/sti/sti_plane.c

+/*
+ * Copyright (C) STMicroelectronics SA 2014
+ * Authors: Benjamin Gaignard <benjamin.gaignard@st.com>
+ *          Fabien Dessenne <fabien.dessenne@st.com>
+ *          for STMicroelectronics.
+ * License terms:  GNU General Public License (GPL), version 2
+ */
+
+#include <drm/drmP.h>
+#include <drm/drm_fb_cma_helper.h>
+#include <drm/drm_gem_cma_helper.h>
+
+#include "sti_compositor.h"
+#include "sti_drv.h"
+#include "sti_plane.h"
+
+/* (Background) < GDP0 < GDP1 < HQVDP0 < GDP2 < GDP3 < (ForeGround) */
+enum sti_plane_desc sti_plane_default_zorder[] = {
+	STI_GDP_0,
+	STI_GDP_1,
+	STI_HQVDP_0,
+	STI_GDP_2,
+	STI_GDP_3,
+};
+
+const char *sti_plane_to_str(struct sti_plane *plane)
+{
+	switch (plane->desc) {
+	case STI_GDP_0:
+		return "GDP0";
+	case STI_GDP_1:
+		return "GDP1";
+	case STI_GDP_2:
+		return "GDP2";
+	case STI_GDP_3:
+		return "GDP3";
+	case STI_HQVDP_0:
+		return "HQVDP0";
+	case STI_CURSOR:
+		return "CURSOR";
+	default:
+		return "<UNKNOWN PLANE>";
+	}
+}
+EXPORT_SYMBOL(sti_plane_to_str);
+
+static void sti_plane_destroy(struct drm_plane *drm_plane)
+{
+	DRM_DEBUG_DRIVER("\n");
+
+	drm_plane_helper_disable(drm_plane);
+	drm_plane_cleanup(drm_plane);
+}
+
+static int sti_plane_set_property(struct drm_plane *drm_plane,
+				  struct drm_property *property,
+				  uint64_t val)
+{
+	struct drm_device *dev = drm_plane->dev;
+	struct sti_private *private = dev->dev_private;
+	struct sti_plane *plane = to_sti_plane(drm_plane);
+
+	DRM_DEBUG_DRIVER("\n");
+
+	if (property == private->plane_zorder_property) {
+		plane->zorder = val;
+		return 0;
+	}
+
+	return -EINVAL;
+}
+
+static void sti_plane_attach_zorder_property(struct drm_plane *drm_plane)
+{
+	struct drm_device *dev = drm_plane->dev;
+	struct sti_private *private = dev->dev_private;
+	struct sti_plane *plane = to_sti_plane(drm_plane);
+	struct drm_property *prop;
+
+	prop = private->plane_zorder_property;
+	if (!prop) {
+		prop = drm_property_create_range(dev, 0, "zpos", 1,
+						 GAM_MIXER_NB_DEPTH_LEVEL);
+		if (!prop)
+			return;
+
+		private->plane_zorder_property = prop;
+	}
+
+	drm_object_attach_property(&drm_plane->base, prop, plane->zorder);
+}
+
+void sti_plane_init_property(struct sti_plane *plane,
+			     enum drm_plane_type type)
+{
+	unsigned int i;
+
+	for (i = 0; i < ARRAY_SIZE(sti_plane_default_zorder); i++)
+		if (sti_plane_default_zorder[i] == plane->desc)
+			break;
+
+	plane->zorder = i + 1;
+
+	if (type == DRM_PLANE_TYPE_OVERLAY)
+		sti_plane_attach_zorder_property(&plane->drm_plane);
+
+	DRM_DEBUG_DRIVER("drm plane:%d mapped to %s with zorder:%d\n",
+			 plane->drm_plane.base.id,
+			 sti_plane_to_str(plane), plane->zorder);
+}
+EXPORT_SYMBOL(sti_plane_init_property);
+
+struct drm_plane_funcs sti_plane_helpers_funcs = {
+	.update_plane = drm_atomic_helper_update_plane,
+	.disable_plane = drm_atomic_helper_disable_plane,
+	.destroy = sti_plane_destroy,
+	.set_property = sti_plane_set_property,
+	.reset = drm_atomic_helper_plane_reset,
+	.atomic_duplicate_state = drm_atomic_helper_plane_duplicate_state,
+	.atomic_destroy_state = drm_atomic_helper_plane_destroy_state,
+};
+EXPORT_SYMBOL(sti_plane_helpers_funcs);

drivers/gpu/drm/sti/sti_plane.h

+/*
+ * Copyright (C) STMicroelectronics SA 2014
+ * Author: Benjamin Gaignard <benjamin.gaignard@st.com> for STMicroelectronics.
+ * License terms:  GNU General Public License (GPL), version 2
+ */
+
+#ifndef _STI_PLANE_H_
+#define _STI_PLANE_H_
+
+#include <drm/drmP.h>
+#include <drm/drm_atomic_helper.h>
+#include <drm/drm_plane_helper.h>
+
+extern struct drm_plane_funcs sti_plane_helpers_funcs;
+
+#define to_sti_plane(x) container_of(x, struct sti_plane, drm_plane)
+
+#define STI_PLANE_TYPE_SHIFT 8
+#define STI_PLANE_TYPE_MASK (~((1 << STI_PLANE_TYPE_SHIFT) - 1))
+
+enum sti_plane_type {
+	STI_GDP = 1 << STI_PLANE_TYPE_SHIFT,
+	STI_VDP = 2 << STI_PLANE_TYPE_SHIFT,
+	STI_CUR = 3 << STI_PLANE_TYPE_SHIFT,
+	STI_BCK = 4 << STI_PLANE_TYPE_SHIFT
+};
+
+enum sti_plane_id_of_type {
+	STI_ID_0 = 0,
+	STI_ID_1 = 1,
+	STI_ID_2 = 2,
+	STI_ID_3 = 3
+};
+
+enum sti_plane_desc {
+	STI_GDP_0       = STI_GDP | STI_ID_0,
+	STI_GDP_1       = STI_GDP | STI_ID_1,
+	STI_GDP_2       = STI_GDP | STI_ID_2,
+	STI_GDP_3       = STI_GDP | STI_ID_3,
+	STI_HQVDP_0     = STI_VDP | STI_ID_0,
+	STI_CURSOR      = STI_CUR,
+	STI_BACK        = STI_BCK
+};
+
+enum sti_plane_status {
+	STI_PLANE_READY,
+	STI_PLANE_UPDATED,
+	STI_PLANE_DISABLING,
+	STI_PLANE_FLUSHING,
+	STI_PLANE_DISABLED,
+};
+
+/**
+ * STI plane structure
+ *
+ * @plane:              drm plane it is bound to (if any)
+ * @desc:               plane type & id
+ * @status:             to know the status of the plane
+ * @zorder:             plane z-order
+ */
+struct sti_plane {
+	struct drm_plane drm_plane;
+	enum sti_plane_desc desc;
+	enum sti_plane_status status;
+	int zorder;
+};
+
+const char *sti_plane_to_str(struct sti_plane *plane);
+void sti_plane_init_property(struct sti_plane *plane,
+			     enum drm_plane_type type);
+#endif

drivers/gpu/drm/sti/sti_tvout.c

@@ -16,7 +16,7 @@
 #include <drm/drmP.h>
 #include <drm/drm_crtc_helper.h>
 
-#include "sti_drm_crtc.h"
+#include "sti_crtc.h"
 
 /* glue registers */
 #define TVO_CSC_MAIN_M0                  0x000
@@ -473,7 +473,7 @@ static void sti_dvo_encoder_commit(struct drm_encoder *encoder)
 {
 	struct sti_tvout *tvout = to_sti_tvout(encoder);
 
-	tvout_dvo_start(tvout, sti_drm_crtc_is_main(encoder->crtc));
+	tvout_dvo_start(tvout, sti_crtc_is_main(encoder->crtc));
 }
 
 static void sti_dvo_encoder_disable(struct drm_encoder *encoder)
@@ -523,7 +523,7 @@ static void sti_hda_encoder_commit(struct drm_encoder *encoder)
 {
 	struct sti_tvout *tvout = to_sti_tvout(encoder);
 
-	tvout_hda_start(tvout, sti_drm_crtc_is_main(encoder->crtc));
+	tvout_hda_start(tvout, sti_crtc_is_main(encoder->crtc));
 }
 
 static void sti_hda_encoder_disable(struct drm_encoder *encoder)
@@ -575,7 +575,7 @@ static void sti_hdmi_encoder_commit(struct drm_encoder *encoder)
 {
 	struct sti_tvout *tvout = to_sti_tvout(encoder);
 
-	tvout_hdmi_start(tvout, sti_drm_crtc_is_main(encoder->crtc));
+	tvout_hdmi_start(tvout, sti_crtc_is_main(encoder->crtc));
 }
 
 static void sti_hdmi_encoder_disable(struct drm_encoder *encoder)
@@ -644,7 +644,6 @@ static int sti_tvout_bind(struct device *dev, struct device *master, void *data)
 	struct sti_tvout *tvout = dev_get_drvdata(dev);
 	struct drm_device *drm_dev = data;
 	unsigned int i;
-	int ret;
 
 	tvout->drm_dev = drm_dev;
 
@@ -658,17 +657,15 @@ static int sti_tvout_bind(struct device *dev, struct device *master, void *data)
 
 	sti_tvout_create_encoders(drm_dev, tvout);
 
-	ret = component_bind_all(dev, drm_dev);
-	if (ret)
-		sti_tvout_destroy_encoders(tvout);
-
-	return ret;
+	return 0;
 }
 
 static void sti_tvout_unbind(struct device *dev, struct device *master,
 	void *data)
 {
-	/* do nothing */
+	struct sti_tvout *tvout = dev_get_drvdata(dev);
+
+	sti_tvout_destroy_encoders(tvout);
 }
 
 static const struct component_ops sti_tvout_ops = {
@@ -676,34 +673,12 @@ static const struct component_ops sti_tvout_ops = {
 	.unbind	= sti_tvout_unbind,
 };
 
-static int compare_of(struct device *dev, void *data)
-{
-	return dev->of_node == data;
-}
-
-static int sti_tvout_master_bind(struct device *dev)
-{
-	return 0;
-}
-
-static void sti_tvout_master_unbind(struct device *dev)
-{
-	/* do nothing */
-}
-
-static const struct component_master_ops sti_tvout_master_ops = {
-	.bind = sti_tvout_master_bind,
-	.unbind = sti_tvout_master_unbind,
-};
-
 static int sti_tvout_probe(struct platform_device *pdev)
 {
 	struct device *dev = &pdev->dev;
 	struct device_node *node = dev->of_node;
 	struct sti_tvout *tvout;
 	struct resource *res;
-	struct device_node *child_np;
-	struct component_match *match = NULL;
 
 	DRM_INFO("%s\n", __func__);
 
@@ -734,24 +709,11 @@ static int sti_tvout_probe(struct platform_device *pdev)
 
 	platform_set_drvdata(pdev, tvout);
 
-	of_platform_populate(node, NULL, NULL, dev);
-
-	child_np = of_get_next_available_child(node, NULL);
-
-	while (child_np) {
-		component_match_add(dev, &match, compare_of, child_np);
-		of_node_put(child_np);
-		child_np = of_get_next_available_child(node, child_np);
-	}
-
-	component_master_add_with_match(dev, &sti_tvout_master_ops, match);
-
 	return component_add(dev, &sti_tvout_ops);
 }
 
 static int sti_tvout_remove(struct platform_device *pdev)
 {
-	component_master_del(&pdev->dev, &sti_tvout_master_ops);
 	component_del(&pdev->dev, &sti_tvout_ops);
 	return 0;
 }

drivers/gpu/drm/sti/sti_vid.c

@@ -6,7 +6,7 @@
 
 #include <drm/drmP.h>
 
-#include "sti_layer.h"
+#include "sti_plane.h"
 #include "sti_vid.h"
 #include "sti_vtg.h"
 
@@ -43,35 +43,37 @@
 #define VID_MPR2_BT709          0x07150545
 #define VID_MPR3_BT709          0x00000AE8
 
-static int sti_vid_prepare_layer(struct sti_layer *vid, bool first_prepare)
+void sti_vid_commit(struct sti_vid *vid,
+		    struct drm_plane_state *state)
 {
-	u32 val;
+	struct drm_crtc *crtc = state->crtc;
+	struct drm_display_mode *mode = &crtc->mode;
+	int dst_x = state->crtc_x;
+	int dst_y = state->crtc_y;
+	int dst_w = clamp_val(state->crtc_w, 0, mode->crtc_hdisplay - dst_x);
+	int dst_h = clamp_val(state->crtc_h, 0, mode->crtc_vdisplay - dst_y);
+	u32 val, ydo, xdo, yds, xds;
+
+	/* Input / output size
+	 * Align to upper even value */
+	dst_w = ALIGN(dst_w, 2);
+	dst_h = ALIGN(dst_h, 2);
 
 	/* Unmask */
 	val = readl(vid->regs + VID_CTL);
 	val &= ~VID_CTL_IGNORE;
 	writel(val, vid->regs + VID_CTL);
 
-	return 0;
-}
-
-static int sti_vid_commit_layer(struct sti_layer *vid)
-{
-	struct drm_display_mode *mode = vid->mode;
-	u32 ydo, xdo, yds, xds;
-
-	ydo = sti_vtg_get_line_number(*mode, vid->dst_y);
-	yds = sti_vtg_get_line_number(*mode, vid->dst_y + vid->dst_h - 1);
-	xdo = sti_vtg_get_pixel_number(*mode, vid->dst_x);
-	xds = sti_vtg_get_pixel_number(*mode, vid->dst_x + vid->dst_w - 1);
+	ydo = sti_vtg_get_line_number(*mode, dst_y);
+	yds = sti_vtg_get_line_number(*mode, dst_y + dst_h - 1);
+	xdo = sti_vtg_get_pixel_number(*mode, dst_x);
+	xds = sti_vtg_get_pixel_number(*mode, dst_x + dst_w - 1);
 
 	writel((ydo << 16) | xdo, vid->regs + VID_VPO);
 	writel((yds << 16) | xds, vid->regs + VID_VPS);
-
-	return 0;
 }
 
-static int sti_vid_disable_layer(struct sti_layer *vid)
+void sti_vid_disable(struct sti_vid *vid)
 {
 	u32 val;
 
@@ -79,21 +81,9 @@ static int sti_vid_disable_layer(struct sti_layer *vid)
 	val = readl(vid->regs + VID_CTL);
 	val |= VID_CTL_IGNORE;
 	writel(val, vid->regs + VID_CTL);
-
-	return 0;
-}
-
-static const uint32_t *sti_vid_get_formats(struct sti_layer *layer)
-{
-	return NULL;
-}
-
-static unsigned int sti_vid_get_nb_formats(struct sti_layer *layer)
-{
-	return 0;
 }
 
-static void sti_vid_init(struct sti_layer *vid)
+static void sti_vid_init(struct sti_vid *vid)
 {
 	/* Enable PSI, Mask layer */
 	writel(VID_CTL_PSI_ENABLE | VID_CTL_IGNORE, vid->regs + VID_CTL);
@@ -113,18 +103,10 @@ static void sti_vid_init(struct sti_layer *vid)
 	writel(VID_CSAT_DFLT, vid->regs + VID_CSAT);
 }
 
-static const struct sti_layer_funcs vid_ops = {
-	.get_formats = sti_vid_get_formats,
-	.get_nb_formats = sti_vid_get_nb_formats,
-	.init = sti_vid_init,
-	.prepare = sti_vid_prepare_layer,
-	.commit = sti_vid_commit_layer,
-	.disable = sti_vid_disable_layer,
-};
-
-struct sti_layer *sti_vid_create(struct device *dev)
+struct sti_vid *sti_vid_create(struct device *dev, int id,
+			       void __iomem *baseaddr)
 {
-	struct sti_layer *vid;
+	struct sti_vid *vid;
 
 	vid = devm_kzalloc(dev, sizeof(*vid), GFP_KERNEL);
 	if (!vid) {
@@ -132,7 +114,11 @@ struct sti_layer *sti_vid_create(struct device *dev)
 		return NULL;
 	}
 
-	vid->ops = &vid_ops;
+	vid->dev = dev;
+	vid->regs = baseaddr;
+	vid->id = id;
+
+	sti_vid_init(vid);
 
 	return vid;
 }

drivers/gpu/drm/sti/sti_vid.h

@@ -7,6 +7,23 @@
 #ifndef _STI_VID_H_
 #define _STI_VID_H_
 
-struct sti_layer *sti_vid_create(struct device *dev);
+/**
+ * STI VID structure
+ *
+ * @dev:   driver device
+ * @regs:  vid registers
+ * @id:    id of the vid
+ */
+struct sti_vid {
+	struct device *dev;
+	void __iomem *regs;
+	int id;
+};
+
+void sti_vid_commit(struct sti_vid *vid,
+		    struct drm_plane_state *state);
+void sti_vid_disable(struct sti_vid *vid);
+struct sti_vid *sti_vid_create(struct device *dev, int id,
+			       void __iomem *baseaddr);
 
 #endif