Merge tag 'shmob-drm-atomic-dt-tag2' of...

Merge tag 'shmob-drm-atomic-dt-tag2' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-drivers into drm-next

drm: renesas: shmobile: Atomic conversion + DT support

Currently, there are two drivers for the LCD controller on Renesas
SuperH-based and ARM-based SH-Mobile and R-Mobile SoCs:
  1. sh_mobile_lcdcfb, using the fbdev framework,
  2. shmob_drm, using the DRM framework.
However, only the former driver is used, as all platform support
integrates the former.  None of these drivers support DT-based systems.

Convert the SH-Mobile DRM driver to atomic modesetting, and add DT
support, complemented by the customary set of fixes and improvements.
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Link: https://lore.kernel.org/r/cover.1694767208.git.geert+renesas@glider.be/Signed-off-by: Dave Airlie <airlied@redhat.com>

From: Geert Uytterhoeven <geert@linux-m68k.org>
Link: https://patchwork.freedesktop.org/patch/msgid/CAMuHMdUF61V5qNyKbrTGxZfEJvCVuLO7q2R5MqZYkzRC_cNr0w@mail.gmail.com

Documentation/devicetree/bindings/display/renesas,shmobile-lcdc.yaml

+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/renesas,shmobile-lcdc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Renesas SH-Mobile LCD Controller (LCDC)
+
+maintainers:
+  - Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
+  - Geert Uytterhoeven <geert+renesas@glider.be>
+
+properties:
+  compatible:
+    enum:
+      - renesas,r8a7740-lcdc # R-Mobile A1
+      - renesas,sh73a0-lcdc  # SH-Mobile AG5
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  clocks:
+    minItems: 1
+    maxItems: 5
+    description:
+      Only the functional clock is mandatory.
+      Some of the optional clocks are model-dependent (e.g. "video" (a.k.a.
+      "vou" or "dv_clk") is available on R-Mobile A1 only).
+
+  clock-names:
+    minItems: 1
+    items:
+      - const: fck
+      - enum: [ media, lclk, hdmi, video ]
+      - enum: [ media, lclk, hdmi, video ]
+      - enum: [ media, lclk, hdmi, video ]
+      - enum: [ media, lclk, hdmi, video ]
+
+  power-domains:
+    maxItems: 1
+
+  ports:
+    $ref: /schemas/graph.yaml#/properties/ports
+
+    properties:
+      port@0:
+        $ref: /schemas/graph.yaml#/properties/port
+        description: LCD port (R-Mobile A1 and SH-Mobile AG5)
+        unevaluatedProperties: false
+
+      port@1:
+        $ref: /schemas/graph.yaml#/properties/port
+        description: HDMI port (R-Mobile A1 LCDC1 and SH-Mobile AG5)
+        unevaluatedProperties: false
+
+      port@2:
+        $ref: /schemas/graph.yaml#/properties/port
+        description: MIPI-DSI port (SH-Mobile AG5)
+        unevaluatedProperties: false
+
+    required:
+      - port@0
+
+    unevaluatedProperties: false
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - clocks
+  - clock-names
+  - power-domains
+  - ports
+
+additionalProperties: false
+
+allOf:
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: renesas,r8a7740-lcdc
+    then:
+      properties:
+        ports:
+          properties:
+            port@2: false
+
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: renesas,sh73a0-lcdc
+    then:
+      properties:
+        ports:
+          required:
+            - port@1
+            - port@2
+
+examples:
+  - |
+    #include <dt-bindings/clock/r8a7740-clock.h>
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+    lcd-controller@fe940000 {
+        compatible = "renesas,r8a7740-lcdc";
+        reg = <0xfe940000 0x4000>;
+        interrupts = <GIC_SPI 177 IRQ_TYPE_LEVEL_HIGH>;
+        clocks = <&mstp1_clks R8A7740_CLK_LCDC0>,
+                 <&cpg_clocks R8A7740_CLK_M3>, <&lcdlclk0_clk>,
+                 <&vou_clk>;
+        clock-names = "fck", "media", "lclk", "video";
+        power-domains = <&pd_a4lc>;
+
+        ports {
+            #address-cells = <1>;
+            #size-cells = <0>;
+
+            port@0 {
+                reg = <0>;
+
+                lcdc0_rgb: endpoint {
+                };
+            };
+        };
+    };

Documentation/userspace-api/media/v4l/subdev-formats.rst

@@ -949,6 +949,78 @@ The following tables list existing packed RGB formats.
       - b\ :sub:`2`
       - b\ :sub:`1`
       - b\ :sub:`0`
+    * .. _MEDIA-BUS-FMT-RGB666-2X9-BE:
+
+      - MEDIA_BUS_FMT_RGB666_2X9_BE
+      - 0x1025
+      -
+      -
+      -
+      -
+      -
+      -
+      -
+      -
+      -
+      -
+      -
+      -
+      -
+      -
+      -
+      -
+      -
+      -
+      -
+      -
+      -
+      -
+      -
+      -
+      - r\ :sub:`5`
+      - r\ :sub:`4`
+      - r\ :sub:`3`
+      - r\ :sub:`2`
+      - r\ :sub:`1`
+      - r\ :sub:`0`
+      - g\ :sub:`5`
+      - g\ :sub:`4`
+      - g\ :sub:`3`
+    * -
+      -
+      -
+      -
+      -
+      -
+      -
+      -
+      -
+      -
+      -
+      -
+      -
+      -
+      -
+      -
+      -
+      -
+      -
+      -
+      -
+      -
+      -
+      -
+      -
+      -
+      - g\ :sub:`2`
+      - g\ :sub:`1`
+      - g\ :sub:`0`
+      - b\ :sub:`5`
+      - b\ :sub:`4`
+      - b\ :sub:`3`
+      - b\ :sub:`2`
+      - b\ :sub:`1`
+      - b\ :sub:`0`
     * .. _MEDIA-BUS-FMT-BGR666-1X18:
 
       - MEDIA_BUS_FMT_BGR666_1X18

MAINTAINERS

@@ -7053,7 +7053,7 @@ F:	drivers/gpu/host1x/
 F:	include/linux/host1x.h
 F:	include/uapi/drm/tegra_drm.h
 
-DRM DRIVERS FOR RENESAS
+DRM DRIVERS FOR RENESAS R-CAR
 M:	Laurent Pinchart <laurent.pinchart@ideasonboard.com>
 M:	Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
 L:	dri-devel@lists.freedesktop.org
@@ -7064,7 +7064,16 @@ F:	Documentation/devicetree/bindings/display/bridge/renesas,dsi-csi2-tx.yaml
 F:	Documentation/devicetree/bindings/display/bridge/renesas,dw-hdmi.yaml
 F:	Documentation/devicetree/bindings/display/bridge/renesas,lvds.yaml
 F:	Documentation/devicetree/bindings/display/renesas,du.yaml
-F:	drivers/gpu/drm/renesas/
+F:	drivers/gpu/drm/renesas/rcar-du/
+
+DRM DRIVERS FOR RENESAS SHMOBILE
+M:	Laurent Pinchart <laurent.pinchart@ideasonboard.com>
+M:	Geert Uytterhoeven <geert+renesas@glider.be>
+L:	dri-devel@lists.freedesktop.org
+L:	linux-renesas-soc@vger.kernel.org
+S:	Supported
+F:	Documentation/devicetree/bindings/display/renesas,shmobile-lcdc.yaml
+F:	drivers/gpu/drm/renesas/shmobile/
 F:	include/linux/platform_data/shmob_drm.h
 
 DRM DRIVERS FOR ROCKCHIP

drivers/gpu/drm/renesas/shmobile/Kconfig

 # SPDX-License-Identifier: GPL-2.0
 config DRM_SHMOBILE
 	tristate "DRM Support for SH Mobile"
-	depends on DRM
+	depends on DRM && PM
 	depends on ARCH_RENESAS || ARCH_SHMOBILE || COMPILE_TEST
 	select BACKLIGHT_CLASS_DEVICE
 	select DRM_KMS_HELPER
 	select DRM_GEM_DMA_HELPER
+	select VIDEOMODE_HELPERS
 	help
 	  Choose this option if you have an SH Mobile chipset.
 	  If M is selected the module will be called shmob-drm.

drivers/gpu/drm/renesas/shmobile/Makefile

 # SPDX-License-Identifier: GPL-2.0
-shmob-drm-y := shmob_drm_backlight.o \
-	       shmob_drm_crtc.o \
+shmob-drm-y := shmob_drm_crtc.o \
 	       shmob_drm_drv.o \
 	       shmob_drm_kms.o \
 	       shmob_drm_plane.o

drivers/gpu/drm/renesas/shmobile/shmob_drm_backlight.c

-// SPDX-License-Identifier: GPL-2.0+
-/*
- * shmob_drm_backlight.c  --  SH Mobile DRM Backlight
- *
- * Copyright (C) 2012 Renesas Electronics Corporation
- *
- * Laurent Pinchart (laurent.pinchart@ideasonboard.com)
- */
-
-#include <linux/backlight.h>
-
-#include "shmob_drm_backlight.h"
-#include "shmob_drm_crtc.h"
-#include "shmob_drm_drv.h"
-
-static int shmob_drm_backlight_update(struct backlight_device *bdev)
-{
-	struct shmob_drm_connector *scon = bl_get_data(bdev);
-	struct shmob_drm_device *sdev = scon->connector.dev->dev_private;
-	const struct shmob_drm_backlight_data *bdata = &sdev->pdata->backlight;
-	int brightness = backlight_get_brightness(bdev);
-
-	return bdata->set_brightness(brightness);
-}
-
-static int shmob_drm_backlight_get_brightness(struct backlight_device *bdev)
-{
-	struct shmob_drm_connector *scon = bl_get_data(bdev);
-	struct shmob_drm_device *sdev = scon->connector.dev->dev_private;
-	const struct shmob_drm_backlight_data *bdata = &sdev->pdata->backlight;
-
-	return bdata->get_brightness();
-}
-
-static const struct backlight_ops shmob_drm_backlight_ops = {
-	.options	= BL_CORE_SUSPENDRESUME,
-	.update_status	= shmob_drm_backlight_update,
-	.get_brightness	= shmob_drm_backlight_get_brightness,
-};
-
-void shmob_drm_backlight_dpms(struct shmob_drm_connector *scon, int mode)
-{
-	if (scon->backlight == NULL)
-		return;
-
-	scon->backlight->props.power = mode == DRM_MODE_DPMS_ON
-				     ? FB_BLANK_UNBLANK : FB_BLANK_POWERDOWN;
-	backlight_update_status(scon->backlight);
-}
-
-int shmob_drm_backlight_init(struct shmob_drm_connector *scon)
-{
-	struct shmob_drm_device *sdev = scon->connector.dev->dev_private;
-	const struct shmob_drm_backlight_data *bdata = &sdev->pdata->backlight;
-	struct drm_connector *connector = &scon->connector;
-	struct drm_device *dev = connector->dev;
-	struct backlight_device *backlight;
-
-	if (!bdata->max_brightness)
-		return 0;
-
-	backlight = backlight_device_register(bdata->name, dev->dev, scon,
-					      &shmob_drm_backlight_ops, NULL);
-	if (IS_ERR(backlight)) {
-		dev_err(dev->dev, "unable to register backlight device: %ld\n",
-			PTR_ERR(backlight));
-		return PTR_ERR(backlight);
-	}
-
-	backlight->props.max_brightness = bdata->max_brightness;
-	backlight->props.brightness = bdata->max_brightness;
-	backlight->props.power = FB_BLANK_POWERDOWN;
-	backlight_update_status(backlight);
-
-	scon->backlight = backlight;
-	return 0;
-}
-
-void shmob_drm_backlight_exit(struct shmob_drm_connector *scon)
-{
-	backlight_device_unregister(scon->backlight);
-}

drivers/gpu/drm/renesas/shmobile/shmob_drm_backlight.h

-/* SPDX-License-Identifier: GPL-2.0+ */
-/*
- * shmob_drm_backlight.h  --  SH Mobile DRM Backlight
- *
- * Copyright (C) 2012 Renesas Electronics Corporation
- *
- * Laurent Pinchart (laurent.pinchart@ideasonboard.com)
- */
-
-#ifndef __SHMOB_DRM_BACKLIGHT_H__
-#define __SHMOB_DRM_BACKLIGHT_H__
-
-struct shmob_drm_connector;
-
-void shmob_drm_backlight_dpms(struct shmob_drm_connector *scon, int mode);
-int shmob_drm_backlight_init(struct shmob_drm_connector *scon);
-void shmob_drm_backlight_exit(struct shmob_drm_connector *scon);
-
-#endif /* __SHMOB_DRM_BACKLIGHT_H__ */

drivers/gpu/drm/renesas/shmobile/shmob_drm_crtc.c

@@ -7,9 +7,18 @@
  * Laurent Pinchart (laurent.pinchart@ideasonboard.com)
  */
 
-#include <linux/backlight.h>
 #include <linux/clk.h>
-
+#include <linux/media-bus-format.h>
+#include <linux/of.h>
+#include <linux/of_graph.h>
+#include <linux/pm_runtime.h>
+
+#include <drm/drm_atomic.h>
+#include <drm/drm_atomic_helper.h>
+#include <drm/drm_atomic_state_helper.h>
+#include <drm/drm_atomic_uapi.h>
+#include <drm/drm_bridge.h>
+#include <drm/drm_bridge_connector.h>
 #include <drm/drm_crtc.h>
 #include <drm/drm_crtc_helper.h>
 #include <drm/drm_fb_dma_helper.h>
@@ -18,85 +27,123 @@
 #include <drm/drm_gem_dma_helper.h>
 #include <drm/drm_modeset_helper.h>
 #include <drm/drm_modeset_helper_vtables.h>
-#include <drm/drm_plane_helper.h>
+#include <drm/drm_panel.h>
 #include <drm/drm_probe_helper.h>
 #include <drm/drm_simple_kms_helper.h>
 #include <drm/drm_vblank.h>
 
-#include "shmob_drm_backlight.h"
+#include <video/videomode.h>
+
 #include "shmob_drm_crtc.h"
 #include "shmob_drm_drv.h"
 #include "shmob_drm_kms.h"
 #include "shmob_drm_plane.h"
 #include "shmob_drm_regs.h"
 
-/*
- * TODO: panel support
- */
-
 /* -----------------------------------------------------------------------------
- * Clock management
+ * Page Flip
  */
 
-static int shmob_drm_clk_on(struct shmob_drm_device *sdev)
+void shmob_drm_crtc_finish_page_flip(struct shmob_drm_crtc *scrtc)
 {
-	int ret;
+	struct drm_pending_vblank_event *event;
+	struct drm_device *dev = scrtc->base.dev;
+	unsigned long flags;
 
-	if (sdev->clock) {
-		ret = clk_prepare_enable(sdev->clock);
-		if (ret < 0)
-			return ret;
+	spin_lock_irqsave(&dev->event_lock, flags);
+	event = scrtc->event;
+	scrtc->event = NULL;
+	if (event) {
+		drm_crtc_send_vblank_event(&scrtc->base, event);
+		wake_up(&scrtc->flip_wait);
+		drm_crtc_vblank_put(&scrtc->base);
 	}
+	spin_unlock_irqrestore(&dev->event_lock, flags);
+}
 
-	return 0;
+static bool shmob_drm_crtc_page_flip_pending(struct shmob_drm_crtc *scrtc)
+{
+	struct drm_device *dev = scrtc->base.dev;
+	unsigned long flags;
+	bool pending;
+
+	spin_lock_irqsave(&dev->event_lock, flags);
+	pending = scrtc->event != NULL;
+	spin_unlock_irqrestore(&dev->event_lock, flags);
+
+	return pending;
 }
 
-static void shmob_drm_clk_off(struct shmob_drm_device *sdev)
+static void shmob_drm_crtc_wait_page_flip(struct shmob_drm_crtc *scrtc)
 {
-	if (sdev->clock)
-		clk_disable_unprepare(sdev->clock);
+	struct drm_crtc *crtc = &scrtc->base;
+	struct shmob_drm_device *sdev = to_shmob_device(crtc->dev);
+
+	if (wait_event_timeout(scrtc->flip_wait,
+			       !shmob_drm_crtc_page_flip_pending(scrtc),
+			       msecs_to_jiffies(50)))
+		return;
+
+	dev_warn(sdev->dev, "page flip timeout\n");
+
+	shmob_drm_crtc_finish_page_flip(scrtc);
 }
 
 /* -----------------------------------------------------------------------------
  * CRTC
  */
 
+static const struct {
+	u32 fmt;
+	u32 ldmt1r;
+} shmob_drm_bus_fmts[] = {
+	{ MEDIA_BUS_FMT_RGB888_3X8,	 LDMT1R_MIFTYP_RGB8 },
+	{ MEDIA_BUS_FMT_RGB666_2X9_BE,	 LDMT1R_MIFTYP_RGB9 },
+	{ MEDIA_BUS_FMT_RGB888_2X12_BE,	 LDMT1R_MIFTYP_RGB12A },
+	{ MEDIA_BUS_FMT_RGB444_1X12,	 LDMT1R_MIFTYP_RGB12B },
+	{ MEDIA_BUS_FMT_RGB565_1X16,	 LDMT1R_MIFTYP_RGB16 },
+	{ MEDIA_BUS_FMT_RGB666_1X18,	 LDMT1R_MIFTYP_RGB18 },
+	{ MEDIA_BUS_FMT_RGB888_1X24,	 LDMT1R_MIFTYP_RGB24 },
+	{ MEDIA_BUS_FMT_UYVY8_1X16,	 LDMT1R_MIFTYP_YCBCR },
+};
+
 static void shmob_drm_crtc_setup_geometry(struct shmob_drm_crtc *scrtc)
 {
-	struct drm_crtc *crtc = &scrtc->crtc;
-	struct shmob_drm_device *sdev = crtc->dev->dev_private;
-	const struct shmob_drm_interface_data *idata = &sdev->pdata->iface;
+	struct drm_crtc *crtc = &scrtc->base;
+	struct shmob_drm_device *sdev = to_shmob_device(crtc->dev);
+	const struct drm_display_info *info = &sdev->connector->display_info;
 	const struct drm_display_mode *mode = &crtc->mode;
+	unsigned int i;
 	u32 value;
 
-	value = sdev->ldmt1r
-	      | ((mode->flags & DRM_MODE_FLAG_PVSYNC) ? 0 : LDMT1R_VPOL)
-	      | ((mode->flags & DRM_MODE_FLAG_PHSYNC) ? 0 : LDMT1R_HPOL)
-	      | ((idata->flags & SHMOB_DRM_IFACE_FL_DWPOL) ? LDMT1R_DWPOL : 0)
-	      | ((idata->flags & SHMOB_DRM_IFACE_FL_DIPOL) ? LDMT1R_DIPOL : 0)
-	      | ((idata->flags & SHMOB_DRM_IFACE_FL_DAPOL) ? LDMT1R_DAPOL : 0)
-	      | ((idata->flags & SHMOB_DRM_IFACE_FL_HSCNT) ? LDMT1R_HSCNT : 0)
-	      | ((idata->flags & SHMOB_DRM_IFACE_FL_DWCNT) ? LDMT1R_DWCNT : 0);
-	lcdc_write(sdev, LDMT1R, value);
-
-	if (idata->interface >= SHMOB_DRM_IFACE_SYS8A &&
-	    idata->interface <= SHMOB_DRM_IFACE_SYS24) {
-		/* Setup SYS bus. */
-		value = (idata->sys.cs_setup << LDMT2R_CSUP_SHIFT)
-		      | (idata->sys.vsync_active_high ? LDMT2R_RSV : 0)
-		      | (idata->sys.vsync_dir_input ? LDMT2R_VSEL : 0)
-		      | (idata->sys.write_setup << LDMT2R_WCSC_SHIFT)
-		      | (idata->sys.write_cycle << LDMT2R_WCEC_SHIFT)
-		      | (idata->sys.write_strobe << LDMT2R_WCLW_SHIFT);
-		lcdc_write(sdev, LDMT2R, value);
-
-		value = (idata->sys.read_latch << LDMT3R_RDLC_SHIFT)
-		      | (idata->sys.read_setup << LDMT3R_RCSC_SHIFT)
-		      | (idata->sys.read_cycle << LDMT3R_RCEC_SHIFT)
-		      | (idata->sys.read_strobe << LDMT3R_RCLW_SHIFT);
-		lcdc_write(sdev, LDMT3R, value);
+	if (!info->num_bus_formats || !info->bus_formats) {
+		dev_warn(sdev->dev, "No bus format reported, using RGB888\n");
+		value = LDMT1R_MIFTYP_RGB24;
+	} else {
+		for (i = 0; i < ARRAY_SIZE(shmob_drm_bus_fmts); i++) {
+			if (shmob_drm_bus_fmts[i].fmt == info->bus_formats[0])
+				break;
+		}
+		if (i < ARRAY_SIZE(shmob_drm_bus_fmts)) {
+			value = shmob_drm_bus_fmts[i].ldmt1r;
+		} else {
+			dev_warn(sdev->dev,
+				 "unsupported bus format 0x%x, using RGB888\n",
+				 info->bus_formats[0]);
+			value = LDMT1R_MIFTYP_RGB24;
+		}
 	}
 
+	if (info->bus_flags & DRM_BUS_FLAG_PIXDATA_DRIVE_POSEDGE)
+		value |= LDMT1R_DWPOL;
+	if (info->bus_flags & DRM_BUS_FLAG_DE_LOW)
+		value |= LDMT1R_DIPOL;
+	if (mode->flags & DRM_MODE_FLAG_NVSYNC)
+		value |= LDMT1R_VPOL;
+	if (mode->flags & DRM_MODE_FLAG_NHSYNC)
+		value |= LDMT1R_HPOL;
+	lcdc_write(sdev, LDMT1R, value);
+
 	value = ((mode->hdisplay / 8) << 16)			/* HDCN */
 	      | (mode->htotal / 8);				/* HTCN */
 	lcdc_write(sdev, LDHCNR, value);
@@ -121,7 +168,7 @@ static void shmob_drm_crtc_setup_geometry(struct shmob_drm_crtc *scrtc)
 
 static void shmob_drm_crtc_start_stop(struct shmob_drm_crtc *scrtc, bool start)
 {
-	struct shmob_drm_device *sdev = scrtc->crtc.dev->dev_private;
+	struct shmob_drm_device *sdev = to_shmob_device(scrtc->base.dev);
 	u32 value;
 
 	value = lcdc_read(sdev, LDCNT2R);
@@ -145,34 +192,23 @@ static void shmob_drm_crtc_start_stop(struct shmob_drm_crtc *scrtc, bool start)
 	}
 }
 
-/*
- * shmob_drm_crtc_start - Configure and start the LCDC
- * @scrtc: the SH Mobile CRTC
- *
- * Configure and start the LCDC device. External devices (clocks, MERAM, panels,
- * ...) are not touched by this function.
- */
-static void shmob_drm_crtc_start(struct shmob_drm_crtc *scrtc)
+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_atomic_enable(struct drm_crtc *crtc,
+					 struct drm_atomic_state *state)
 {
-	struct drm_crtc *crtc = &scrtc->crtc;
-	struct shmob_drm_device *sdev = crtc->dev->dev_private;
-	const struct shmob_drm_interface_data *idata = &sdev->pdata->iface;
-	const struct shmob_drm_format_info *format;
-	struct drm_device *dev = sdev->ddev;
-	struct drm_plane *plane;
+	struct shmob_drm_crtc *scrtc = to_shmob_crtc(crtc);
+	struct shmob_drm_device *sdev = to_shmob_device(crtc->dev);
+	unsigned int clk_div = sdev->config.clk_div;
+	struct device *dev = sdev->dev;
 	u32 value;
 	int ret;
 
-	if (scrtc->started)
-		return;
-
-	format = shmob_drm_format_info(crtc->primary->fb->format->format);
-	if (WARN_ON(format == NULL))
-		return;
-
-	/* Enable clocks before accessing the hardware. */
-	ret = shmob_drm_clk_on(sdev);
-	if (ret < 0)
+	ret = pm_runtime_resume_and_get(dev);
+	if (ret)
 		return;
 
 	/* Reset and enable the LCDC. */
@@ -188,79 +224,50 @@ static void shmob_drm_crtc_start(struct shmob_drm_crtc *scrtc)
 	lcdc_write(sdev, LDPMR, 0);
 
 	value = sdev->lddckr;
-	if (idata->clk_div) {
+	if (clk_div) {
 		/* FIXME: sh7724 can only use 42, 48, 54 and 60 for the divider
 		 * denominator.
 		 */
 		lcdc_write(sdev, LDDCKPAT1R, 0);
-		lcdc_write(sdev, LDDCKPAT2R, (1 << (idata->clk_div / 2)) - 1);
+		lcdc_write(sdev, LDDCKPAT2R, (1 << (clk_div / 2)) - 1);
 
-		if (idata->clk_div == 1)
+		if (clk_div == 1)
 			value |= LDDCKR_MOSEL;
 		else
-			value |= idata->clk_div;
+			value |= clk_div;
 	}
 
 	lcdc_write(sdev, LDDCKR, value);
 	lcdc_write(sdev, LDDCKSTPR, 0);
 	lcdc_wait_bit(sdev, LDDCKSTPR, ~0, 0);
 
-	/* TODO: Setup SYS panel */
-
 	/* Setup geometry, format, frame buffer memory and operation mode. */
 	shmob_drm_crtc_setup_geometry(scrtc);
 
-	/* TODO: Handle YUV colorspaces. Hardcode REC709 for now. */
-	lcdc_write(sdev, LDDFR, format->lddfr | LDDFR_CF1);
-	lcdc_write(sdev, LDMLSR, scrtc->line_size);
-	lcdc_write(sdev, LDSA1R, scrtc->dma[0]);
-	if (format->yuv)
-		lcdc_write(sdev, LDSA2R, scrtc->dma[1]);
 	lcdc_write(sdev, LDSM1R, 0);
 
-	/* Word and long word swap. */
-	switch (format->fourcc) {
-	case DRM_FORMAT_RGB565:
-	case DRM_FORMAT_NV21:
-	case DRM_FORMAT_NV61:
-	case DRM_FORMAT_NV42:
-		value = LDDDSR_LS | LDDDSR_WS;
-		break;
-	case DRM_FORMAT_RGB888:
-	case DRM_FORMAT_NV12:
-	case DRM_FORMAT_NV16:
-	case DRM_FORMAT_NV24:
-		value = LDDDSR_LS | LDDDSR_WS | LDDDSR_BS;
-		break;
-	case DRM_FORMAT_ARGB8888:
-	case DRM_FORMAT_XRGB8888:
-	default:
-		value = LDDDSR_LS;
-		break;
-	}
-	lcdc_write(sdev, LDDDSR, value);
-
-	/* Setup planes. */
-	drm_for_each_legacy_plane(plane, dev) {
-		if (plane->crtc == crtc)
-			shmob_drm_plane_setup(plane);
-	}
-
 	/* Enable the display output. */
 	lcdc_write(sdev, LDCNT1R, LDCNT1R_DE);
 
 	shmob_drm_crtc_start_stop(scrtc, true);
 
-	scrtc->started = true;
+	/* Turn vertical blank interrupt reporting back on. */
+	drm_crtc_vblank_on(crtc);
 }
 
-static void shmob_drm_crtc_stop(struct shmob_drm_crtc *scrtc)
+static void shmob_drm_crtc_atomic_disable(struct drm_crtc *crtc,
+					  struct drm_atomic_state *state)
 {
-	struct drm_crtc *crtc = &scrtc->crtc;
-	struct shmob_drm_device *sdev = crtc->dev->dev_private;
+	struct shmob_drm_crtc *scrtc = to_shmob_crtc(crtc);
+	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
+	 * expects page flips to eventually complete.
+	 */
+	shmob_drm_crtc_wait_page_flip(scrtc);
+	drm_crtc_vblank_off(crtc);
 
 	/* Stop the LCDC. */
 	shmob_drm_crtc_start_stop(scrtc, false);
@@ -268,145 +275,31 @@ static void shmob_drm_crtc_stop(struct shmob_drm_crtc *scrtc)
 	/* Disable the display output. */
 	lcdc_write(sdev, LDCNT1R, 0);
 
-	/* Stop clocks. */
-	shmob_drm_clk_off(sdev);
-
-	scrtc->started = false;
-}
-
-void shmob_drm_crtc_suspend(struct shmob_drm_crtc *scrtc)
-{
-	shmob_drm_crtc_stop(scrtc);
-}
-
-void shmob_drm_crtc_resume(struct shmob_drm_crtc *scrtc)
-{
-	if (scrtc->dpms != DRM_MODE_DPMS_ON)
-		return;
-
-	shmob_drm_crtc_start(scrtc);
-}
-
-static void shmob_drm_crtc_compute_base(struct shmob_drm_crtc *scrtc,
-					int x, int y)
-{
-	struct drm_crtc *crtc = &scrtc->crtc;
-	struct drm_framebuffer *fb = crtc->primary->fb;
-	struct drm_gem_dma_object *gem;
-	unsigned int bpp;
-
-	bpp = scrtc->format->yuv ? 8 : scrtc->format->bpp;
-	gem = drm_fb_dma_get_gem_obj(fb, 0);
-	scrtc->dma[0] = gem->dma_addr + fb->offsets[0]
-		      + y * fb->pitches[0] + x * bpp / 8;
-
-	if (scrtc->format->yuv) {
-		bpp = scrtc->format->bpp - 8;
-		gem = drm_fb_dma_get_gem_obj(fb, 1);
-		scrtc->dma[1] = gem->dma_addr + fb->offsets[1]
-			      + y / (bpp == 4 ? 2 : 1) * fb->pitches[1]
-			      + x * (bpp == 16 ? 2 : 1);
-	}
-}
-
-static void shmob_drm_crtc_update_base(struct shmob_drm_crtc *scrtc)
-{
-	struct drm_crtc *crtc = &scrtc->crtc;
-	struct shmob_drm_device *sdev = crtc->dev->dev_private;
-
-	shmob_drm_crtc_compute_base(scrtc, crtc->x, crtc->y);
-
-	lcdc_write_mirror(sdev, LDSA1R, scrtc->dma[0]);
-	if (scrtc->format->yuv)
-		lcdc_write_mirror(sdev, LDSA2R, scrtc->dma[1]);
-
-	lcdc_write(sdev, LDRCNTR, lcdc_read(sdev, LDRCNTR) ^ LDRCNTR_MRS);
+	pm_runtime_put(sdev->dev);
 }
 
-#define to_shmob_crtc(c)	container_of(c, struct shmob_drm_crtc, crtc)
-
-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_mode_prepare(struct drm_crtc *crtc)
-{
-	shmob_drm_crtc_dpms(crtc, DRM_MODE_DPMS_OFF);
-}
-
-static int shmob_drm_crtc_mode_set(struct drm_crtc *crtc,
-				   struct drm_display_mode *mode,
-				   struct drm_display_mode *adjusted_mode,
-				   int x, int y,
-				   struct drm_framebuffer *old_fb)
-{
-	struct shmob_drm_crtc *scrtc = to_shmob_crtc(crtc);
-	struct shmob_drm_device *sdev = crtc->dev->dev_private;
-	const struct shmob_drm_format_info *format;
-
-	format = shmob_drm_format_info(crtc->primary->fb->format->format);
-	if (format == NULL) {
-		dev_dbg(sdev->dev, "mode_set: unsupported format %p4cc\n",
-			&crtc->primary->fb->format->format);
-		return -EINVAL;
-	}
-
-	scrtc->format = format;
-	scrtc->line_size = crtc->primary->fb->pitches[0];
-
-	shmob_drm_crtc_compute_base(scrtc, x, y);
-
-	return 0;
-}
-
-static void shmob_drm_crtc_mode_commit(struct drm_crtc *crtc)
-{
-	shmob_drm_crtc_dpms(crtc, DRM_MODE_DPMS_ON);
-}
-
-static int shmob_drm_crtc_mode_set_base(struct drm_crtc *crtc, int x, int y,
-					struct drm_framebuffer *old_fb)
-{
-	shmob_drm_crtc_update_base(to_shmob_crtc(crtc));
-
-	return 0;
-}
-
-static const struct drm_crtc_helper_funcs crtc_helper_funcs = {
-	.dpms = shmob_drm_crtc_dpms,
-	.prepare = shmob_drm_crtc_mode_prepare,
-	.commit = shmob_drm_crtc_mode_commit,
-	.mode_set = shmob_drm_crtc_mode_set,
-	.mode_set_base = shmob_drm_crtc_mode_set_base,
-};
-
-void shmob_drm_crtc_finish_page_flip(struct shmob_drm_crtc *scrtc)
+static void shmob_drm_crtc_atomic_flush(struct drm_crtc *crtc,
+					struct drm_atomic_state *state)
 {
 	struct drm_pending_vblank_event *event;
-	struct drm_device *dev = scrtc->crtc.dev;
+	struct drm_device *dev = crtc->dev;
 	unsigned long flags;
 
+	if (crtc->state->event) {
 		spin_lock_irqsave(&dev->event_lock, flags);
-	event = scrtc->event;
-	scrtc->event = NULL;
-	if (event) {
-		drm_crtc_send_vblank_event(&scrtc->crtc, event);
-		drm_crtc_vblank_put(&scrtc->crtc);
-	}
+		event = crtc->state->event;
+		crtc->state->event = NULL;
+		drm_crtc_send_vblank_event(crtc, event);
 		spin_unlock_irqrestore(&dev->event_lock, flags);
+	}
 }
 
+static const struct drm_crtc_helper_funcs crtc_helper_funcs = {
+	.atomic_flush = shmob_drm_crtc_atomic_flush,
+	.atomic_enable = shmob_drm_crtc_atomic_enable,
+	.atomic_disable = shmob_drm_crtc_atomic_disable,
+};
+
 static int shmob_drm_crtc_page_flip(struct drm_crtc *crtc,
 				    struct drm_framebuffer *fb,
 				    struct drm_pending_vblank_event *event,
@@ -414,7 +307,7 @@ static int shmob_drm_crtc_page_flip(struct drm_crtc *crtc,
 				    struct drm_modeset_acquire_ctx *ctx)
 {
 	struct shmob_drm_crtc *scrtc = to_shmob_crtc(crtc);
-	struct drm_device *dev = scrtc->crtc.dev;
+	struct drm_device *dev = scrtc->base.dev;
 	unsigned long flags;
 
 	spin_lock_irqsave(&dev->event_lock, flags);
@@ -424,12 +317,11 @@ static int shmob_drm_crtc_page_flip(struct drm_crtc *crtc,
 	}
 	spin_unlock_irqrestore(&dev->event_lock, flags);
 
-	crtc->primary->fb = fb;
-	shmob_drm_crtc_update_base(scrtc);
+	drm_atomic_set_fb_for_plane(crtc->primary->state, fb);
 
 	if (event) {
 		event->pipe = 0;
-		drm_crtc_vblank_get(&scrtc->crtc);
+		drm_crtc_vblank_get(&scrtc->base);
 		spin_lock_irqsave(&dev->event_lock, flags);
 		scrtc->event = event;
 		spin_unlock_irqrestore(&dev->event_lock, flags);
@@ -457,7 +349,7 @@ static void shmob_drm_crtc_enable_vblank(struct shmob_drm_device *sdev,
 
 static int shmob_drm_enable_vblank(struct drm_crtc *crtc)
 {
-	struct shmob_drm_device *sdev = crtc->dev->dev_private;
+	struct shmob_drm_device *sdev = to_shmob_device(crtc->dev);
 
 	shmob_drm_crtc_enable_vblank(sdev, true);
 
@@ -466,88 +358,65 @@ static int shmob_drm_enable_vblank(struct drm_crtc *crtc)
 
 static void shmob_drm_disable_vblank(struct drm_crtc *crtc)
 {
-	struct shmob_drm_device *sdev = crtc->dev->dev_private;
+	struct shmob_drm_device *sdev = to_shmob_device(crtc->dev);
 
 	shmob_drm_crtc_enable_vblank(sdev, false);
 }
 
 static const struct drm_crtc_funcs crtc_funcs = {
+	.reset = drm_atomic_helper_crtc_reset,
 	.destroy = drm_crtc_cleanup,
-	.set_config = drm_crtc_helper_set_config,
+	.set_config = drm_atomic_helper_set_config,
 	.page_flip = shmob_drm_crtc_page_flip,
+	.atomic_duplicate_state = drm_atomic_helper_crtc_duplicate_state,
+	.atomic_destroy_state = drm_atomic_helper_crtc_destroy_state,
 	.enable_vblank = shmob_drm_enable_vblank,
 	.disable_vblank = shmob_drm_disable_vblank,
 };
 
-static const uint32_t modeset_formats[] = {
-	DRM_FORMAT_RGB565,
-	DRM_FORMAT_RGB888,
-	DRM_FORMAT_ARGB8888,
-	DRM_FORMAT_XRGB8888,
-};
-
-static const struct drm_plane_funcs primary_plane_funcs = {
-	DRM_PLANE_NON_ATOMIC_FUNCS,
-};
-
 int shmob_drm_crtc_create(struct shmob_drm_device *sdev)
 {
-	struct drm_crtc *crtc = &sdev->crtc.crtc;
-	struct drm_plane *primary;
+	struct drm_crtc *crtc = &sdev->crtc.base;
+	struct drm_plane *primary, *plane;
+	unsigned int i;
 	int ret;
 
-	sdev->crtc.dpms = DRM_MODE_DPMS_OFF;
+	init_waitqueue_head(&sdev->crtc.flip_wait);
 
-	primary = __drm_universal_plane_alloc(sdev->ddev, sizeof(*primary), 0,
-					      0, &primary_plane_funcs,
-					      modeset_formats,
-					      ARRAY_SIZE(modeset_formats),
-					      NULL, DRM_PLANE_TYPE_PRIMARY,
-					      NULL);
+	primary = shmob_drm_plane_create(sdev, DRM_PLANE_TYPE_PRIMARY, 0);
 	if (IS_ERR(primary))
 		return PTR_ERR(primary);
 
-	ret = drm_crtc_init_with_planes(sdev->ddev, crtc, primary, NULL,
+	for (i = 1; i < 5; ++i) {
+		plane = shmob_drm_plane_create(sdev, DRM_PLANE_TYPE_OVERLAY, i);
+		if (IS_ERR(plane))
+			return PTR_ERR(plane);
+	}
+
+	ret = drm_crtc_init_with_planes(&sdev->ddev, crtc, primary, NULL,
 					&crtc_funcs, NULL);
-	if (ret < 0) {
-		drm_plane_cleanup(primary);
-		kfree(primary);
+	if (ret < 0)
 		return ret;
-	}
 
 	drm_crtc_helper_add(crtc, &crtc_helper_funcs);
 
+	/* Start with vertical blank interrupt reporting disabled. */
+	drm_crtc_vblank_off(crtc);
+
 	return 0;
 }
 
 /* -----------------------------------------------------------------------------
- * Encoder
+ * Legacy Encoder
  */
 
-#define to_shmob_encoder(e) \
-	container_of(e, struct shmob_drm_encoder, encoder)
-
-static void shmob_drm_encoder_dpms(struct drm_encoder *encoder, int mode)
-{
-	struct shmob_drm_encoder *senc = to_shmob_encoder(encoder);
-	struct shmob_drm_device *sdev = encoder->dev->dev_private;
-	struct shmob_drm_connector *scon = &sdev->connector;
-
-	if (senc->dpms == mode)
-		return;
-
-	shmob_drm_backlight_dpms(scon, mode);
-
-	senc->dpms = mode;
-}
-
 static bool shmob_drm_encoder_mode_fixup(struct drm_encoder *encoder,
 					 const struct drm_display_mode *mode,
 					 struct drm_display_mode *adjusted_mode)
 {
 	struct drm_device *dev = encoder->dev;
-	struct shmob_drm_device *sdev = dev->dev_private;
-	struct drm_connector *connector = &sdev->connector.connector;
+	struct shmob_drm_device *sdev = to_shmob_device(dev);
+	struct drm_connector *connector = sdev->connector;
 	const struct drm_display_mode *panel_mode;
 
 	if (list_empty(&connector->modes)) {
@@ -563,60 +432,61 @@ static bool shmob_drm_encoder_mode_fixup(struct drm_encoder *encoder,
 	return true;
 }
 
-static void shmob_drm_encoder_mode_prepare(struct drm_encoder *encoder)
-{
-	/* No-op, everything is handled in the CRTC code. */
-}
-
-static void shmob_drm_encoder_mode_set(struct drm_encoder *encoder,
-				       struct drm_display_mode *mode,
-				       struct drm_display_mode *adjusted_mode)
-{
-	/* No-op, everything is handled in the CRTC code. */
-}
-
-static void shmob_drm_encoder_mode_commit(struct drm_encoder *encoder)
-{
-	/* No-op, everything is handled in the CRTC code. */
-}
-
 static const struct drm_encoder_helper_funcs encoder_helper_funcs = {
-	.dpms = shmob_drm_encoder_dpms,
 	.mode_fixup = shmob_drm_encoder_mode_fixup,
-	.prepare = shmob_drm_encoder_mode_prepare,
-	.commit = shmob_drm_encoder_mode_commit,
-	.mode_set = shmob_drm_encoder_mode_set,
 };
 
+/* -----------------------------------------------------------------------------
+ * Encoder
+ */
+
 int shmob_drm_encoder_create(struct shmob_drm_device *sdev)
 {
-	struct drm_encoder *encoder = &sdev->encoder.encoder;
+	struct drm_encoder *encoder = &sdev->encoder;
+	struct drm_bridge *bridge;
 	int ret;
 
-	sdev->encoder.dpms = DRM_MODE_DPMS_OFF;
-
 	encoder->possible_crtcs = 1;
 
-	ret = drm_simple_encoder_init(sdev->ddev, encoder,
-				      DRM_MODE_ENCODER_LVDS);
+	ret = drm_simple_encoder_init(&sdev->ddev, encoder,
+				      DRM_MODE_ENCODER_DPI);
 	if (ret < 0)
 		return ret;
 
+	if (sdev->pdata) {
 		drm_encoder_helper_add(encoder, &encoder_helper_funcs);
+		return 0;
+	}
+
+	/* Create a panel bridge */
+	bridge = devm_drm_of_get_bridge(sdev->dev, sdev->dev->of_node, 0, 0);
+	if (IS_ERR(bridge))
+		return PTR_ERR(bridge);
+
+	/* Attach the bridge to the encoder */
+	ret = drm_bridge_attach(encoder, bridge, NULL,
+				DRM_BRIDGE_ATTACH_NO_CONNECTOR);
+	if (ret) {
+		dev_err(sdev->dev, "failed to attach bridge: %pe\n",
+			ERR_PTR(ret));
+		return ret;
+	}
 
 	return 0;
 }
 
 /* -----------------------------------------------------------------------------
- * Connector
+ * Legacy Connector
  */
 
-#define to_shmob_connector(c) \
-	container_of(c, struct shmob_drm_connector, connector)
+static inline struct shmob_drm_connector *to_shmob_connector(struct drm_connector *connector)
+{
+	return container_of(connector, struct shmob_drm_connector, base);
+}
 
 static int shmob_drm_connector_get_modes(struct drm_connector *connector)
 {
-	struct shmob_drm_device *sdev = connector->dev->dev_private;
+	struct shmob_drm_connector *scon = to_shmob_connector(connector);
 	struct drm_display_mode *mode;
 
 	mode = drm_mode_create(connector->dev);
@@ -624,22 +494,10 @@ static int shmob_drm_connector_get_modes(struct drm_connector *connector)
 		return 0;
 
 	mode->type = DRM_MODE_TYPE_PREFERRED | DRM_MODE_TYPE_DRIVER;
-	mode->clock = sdev->pdata->panel.mode.clock;
-	mode->hdisplay = sdev->pdata->panel.mode.hdisplay;
-	mode->hsync_start = sdev->pdata->panel.mode.hsync_start;
-	mode->hsync_end = sdev->pdata->panel.mode.hsync_end;
-	mode->htotal = sdev->pdata->panel.mode.htotal;
-	mode->vdisplay = sdev->pdata->panel.mode.vdisplay;
-	mode->vsync_start = sdev->pdata->panel.mode.vsync_start;
-	mode->vsync_end = sdev->pdata->panel.mode.vsync_end;
-	mode->vtotal = sdev->pdata->panel.mode.vtotal;
-	mode->flags = sdev->pdata->panel.mode.flags;
-
-	drm_mode_set_name(mode);
-	drm_mode_probed_add(connector, mode);
 
-	connector->display_info.width_mm = sdev->pdata->panel.width_mm;
-	connector->display_info.height_mm = sdev->pdata->panel.height_mm;
+	drm_display_mode_from_videomode(scon->mode, mode);
+
+	drm_mode_probed_add(connector, mode);
 
 	return 1;
 }
@@ -659,54 +517,106 @@ static const struct drm_connector_helper_funcs connector_helper_funcs = {
 
 static void shmob_drm_connector_destroy(struct drm_connector *connector)
 {
-	struct shmob_drm_connector *scon = to_shmob_connector(connector);
-
-	shmob_drm_backlight_exit(scon);
 	drm_connector_unregister(connector);
 	drm_connector_cleanup(connector);
+
+	kfree(connector);
 }
 
 static const struct drm_connector_funcs connector_funcs = {
-	.dpms = drm_helper_connector_dpms,
+	.reset = drm_atomic_helper_connector_reset,
 	.fill_modes = drm_helper_probe_single_connector_modes,
 	.destroy = shmob_drm_connector_destroy,
+	.atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state,
+	.atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
 };
 
-int shmob_drm_connector_create(struct shmob_drm_device *sdev,
+static struct drm_connector *
+shmob_drm_connector_init(struct shmob_drm_device *sdev,
 			 struct drm_encoder *encoder)
 {
-	struct drm_connector *connector = &sdev->connector.connector;
+	u32 bus_fmt = sdev->pdata->iface.bus_fmt;
+	struct shmob_drm_connector *scon;
+	struct drm_connector *connector;
+	struct drm_display_info *info;
+	unsigned int i;
 	int ret;
 
-	sdev->connector.encoder = encoder;
+	for (i = 0; i < ARRAY_SIZE(shmob_drm_bus_fmts); i++) {
+		if (shmob_drm_bus_fmts[i].fmt == bus_fmt)
+			break;
+	}
+	if (i == ARRAY_SIZE(shmob_drm_bus_fmts)) {
+		dev_err(sdev->dev, "unsupported bus format 0x%x\n", bus_fmt);
+		return ERR_PTR(-EINVAL);
+	}
 
-	connector->display_info.width_mm = sdev->pdata->panel.width_mm;
-	connector->display_info.height_mm = sdev->pdata->panel.height_mm;
+	scon = kzalloc(sizeof(*scon), GFP_KERNEL);
+	if (!scon)
+		return ERR_PTR(-ENOMEM);
 
-	ret = drm_connector_init(sdev->ddev, connector, &connector_funcs,
-				 DRM_MODE_CONNECTOR_LVDS);
-	if (ret < 0)
-		return ret;
+	connector = &scon->base;
+	scon->encoder = encoder;
+	scon->mode = &sdev->pdata->panel.mode;
+
+	info = &connector->display_info;
+	info->width_mm = sdev->pdata->panel.width_mm;
+	info->height_mm = sdev->pdata->panel.height_mm;
+
+	if (scon->mode->flags & DISPLAY_FLAGS_PIXDATA_POSEDGE)
+		info->bus_flags |= DRM_BUS_FLAG_PIXDATA_DRIVE_POSEDGE;
+	if (scon->mode->flags & DISPLAY_FLAGS_DE_LOW)
+		info->bus_flags |= DRM_BUS_FLAG_DE_LOW;
+
+	ret = drm_display_info_set_bus_formats(info, &bus_fmt, 1);
+	if (ret < 0) {
+		kfree(scon);
+		return ERR_PTR(ret);
+	}
+
+	ret = drm_connector_init(&sdev->ddev, connector, &connector_funcs,
+				 DRM_MODE_CONNECTOR_DPI);
+	if (ret < 0) {
+		kfree(scon);
+		return ERR_PTR(ret);
+	}
 
 	drm_connector_helper_add(connector, &connector_helper_funcs);
 
-	ret = shmob_drm_backlight_init(&sdev->connector);
-	if (ret < 0)
-		goto err_cleanup;
+	return connector;
+}
+
+/* -----------------------------------------------------------------------------
+ * Connector
+ */
+
+int shmob_drm_connector_create(struct shmob_drm_device *sdev,
+			       struct drm_encoder *encoder)
+{
+	struct drm_connector *connector;
+	int ret;
+
+	if (sdev->pdata)
+		connector = shmob_drm_connector_init(sdev, encoder);
+	else
+		connector = drm_bridge_connector_init(&sdev->ddev, encoder);
+	if (IS_ERR(connector)) {
+		dev_err(sdev->dev, "failed to created connector: %pe\n",
+			connector);
+		return PTR_ERR(connector);
+	}
 
 	ret = drm_connector_attach_encoder(connector, encoder);
 	if (ret < 0)
-		goto err_backlight;
+		goto error;
+
+	connector->dpms = DRM_MODE_DPMS_OFF;
 
-	drm_helper_connector_dpms(connector, DRM_MODE_DPMS_OFF);
-	drm_object_property_set_value(&connector->base,
-		sdev->ddev->mode_config.dpms_property, DRM_MODE_DPMS_OFF);
+	sdev->connector = connector;
 
 	return 0;
 
-err_backlight:
-	shmob_drm_backlight_exit(&sdev->connector);
-err_cleanup:
+error:
 	drm_connector_cleanup(connector);
 	return ret;
 }

drivers/gpu/drm/renesas/shmobile/shmob_drm_crtc.h

@@ -14,39 +14,30 @@
 #include <drm/drm_connector.h>
 #include <drm/drm_encoder.h>
 
-struct backlight_device;
+#include <linux/wait.h>
+
+#include <video/videomode.h>
+
 struct drm_pending_vblank_event;
 struct shmob_drm_device;
 struct shmob_drm_format_info;
 
 struct shmob_drm_crtc {
-	struct drm_crtc crtc;
+	struct drm_crtc base;
 
 	struct drm_pending_vblank_event *event;
-	int dpms;
-
-	const struct shmob_drm_format_info *format;
-	unsigned long dma[2];
-	unsigned int line_size;
-	bool started;
-};
-
-struct shmob_drm_encoder {
-	struct drm_encoder encoder;
-	int dpms;
+	wait_queue_head_t flip_wait;
 };
 
+/* Legacy connector */
 struct shmob_drm_connector {
-	struct drm_connector connector;
+	struct drm_connector base;
 	struct drm_encoder *encoder;
-
-	struct backlight_device *backlight;
+	const struct videomode *mode;
 };
 
 int shmob_drm_crtc_create(struct shmob_drm_device *sdev);
 void shmob_drm_crtc_finish_page_flip(struct shmob_drm_crtc *scrtc);
-void shmob_drm_crtc_suspend(struct shmob_drm_crtc *scrtc);
-void shmob_drm_crtc_resume(struct shmob_drm_crtc *scrtc);
 
 int shmob_drm_encoder_create(struct shmob_drm_device *sdev);
 int shmob_drm_connector_create(struct shmob_drm_device *sdev,

drivers/gpu/drm/renesas/shmobile/shmob_drm_drv.c

@@ -11,13 +11,17 @@
 #include <linux/io.h>
 #include <linux/mm.h>
 #include <linux/module.h>
+#include <linux/of.h>
 #include <linux/platform_device.h>
 #include <linux/pm.h>
+#include <linux/pm_runtime.h>
 #include <linux/slab.h>
 
+#include <drm/drm_atomic_helper.h>
 #include <drm/drm_drv.h>
 #include <drm/drm_fbdev_generic.h>
 #include <drm/drm_gem_dma_helper.h>
+#include <drm/drm_modeset_helper.h>
 #include <drm/drm_module.h>
 #include <drm/drm_probe_helper.h>
 #include <drm/drm_vblank.h>
@@ -31,40 +35,6 @@
  * Hardware initialization
  */
 
-static int shmob_drm_init_interface(struct shmob_drm_device *sdev)
-{
-	static const u32 ldmt1r[] = {
-		[SHMOB_DRM_IFACE_RGB8] = LDMT1R_MIFTYP_RGB8,
-		[SHMOB_DRM_IFACE_RGB9] = LDMT1R_MIFTYP_RGB9,
-		[SHMOB_DRM_IFACE_RGB12A] = LDMT1R_MIFTYP_RGB12A,
-		[SHMOB_DRM_IFACE_RGB12B] = LDMT1R_MIFTYP_RGB12B,
-		[SHMOB_DRM_IFACE_RGB16] = LDMT1R_MIFTYP_RGB16,
-		[SHMOB_DRM_IFACE_RGB18] = LDMT1R_MIFTYP_RGB18,
-		[SHMOB_DRM_IFACE_RGB24] = LDMT1R_MIFTYP_RGB24,
-		[SHMOB_DRM_IFACE_YUV422] = LDMT1R_MIFTYP_YCBCR,
-		[SHMOB_DRM_IFACE_SYS8A] = LDMT1R_IFM | LDMT1R_MIFTYP_SYS8A,
-		[SHMOB_DRM_IFACE_SYS8B] = LDMT1R_IFM | LDMT1R_MIFTYP_SYS8B,
-		[SHMOB_DRM_IFACE_SYS8C] = LDMT1R_IFM | LDMT1R_MIFTYP_SYS8C,
-		[SHMOB_DRM_IFACE_SYS8D] = LDMT1R_IFM | LDMT1R_MIFTYP_SYS8D,
-		[SHMOB_DRM_IFACE_SYS9] = LDMT1R_IFM | LDMT1R_MIFTYP_SYS9,
-		[SHMOB_DRM_IFACE_SYS12] = LDMT1R_IFM | LDMT1R_MIFTYP_SYS12,
-		[SHMOB_DRM_IFACE_SYS16A] = LDMT1R_IFM | LDMT1R_MIFTYP_SYS16A,
-		[SHMOB_DRM_IFACE_SYS16B] = LDMT1R_IFM | LDMT1R_MIFTYP_SYS16B,
-		[SHMOB_DRM_IFACE_SYS16C] = LDMT1R_IFM | LDMT1R_MIFTYP_SYS16C,
-		[SHMOB_DRM_IFACE_SYS18] = LDMT1R_IFM | LDMT1R_MIFTYP_SYS18,
-		[SHMOB_DRM_IFACE_SYS24] = LDMT1R_IFM | LDMT1R_MIFTYP_SYS24,
-	};
-
-	if (sdev->pdata->iface.interface >= ARRAY_SIZE(ldmt1r)) {
-		dev_err(sdev->dev, "invalid interface type %u\n",
-			sdev->pdata->iface.interface);
-		return -EINVAL;
-	}
-
-	sdev->ldmt1r = ldmt1r[sdev->pdata->iface.interface];
-	return 0;
-}
-
 static int shmob_drm_setup_clocks(struct shmob_drm_device *sdev,
 				  enum shmob_drm_clk_source clksrc)
 {
@@ -73,15 +43,15 @@ static int shmob_drm_setup_clocks(struct shmob_drm_device *sdev,
 
 	switch (clksrc) {
 	case SHMOB_DRM_CLK_BUS:
-		clkname = "bus_clk";
+		clkname = "fck";
 		sdev->lddckr = LDDCKR_ICKSEL_BUS;
 		break;
 	case SHMOB_DRM_CLK_PERIPHERAL:
-		clkname = "peripheral_clk";
+		clkname = "media";
 		sdev->lddckr = LDDCKR_ICKSEL_MIPI;
 		break;
 	case SHMOB_DRM_CLK_EXTERNAL:
-		clkname = NULL;
+		clkname = "lclk";
 		sdev->lddckr = LDDCKR_ICKSEL_HDMI;
 		break;
 	default:
@@ -105,7 +75,7 @@ static int shmob_drm_setup_clocks(struct shmob_drm_device *sdev,
 static irqreturn_t shmob_drm_irq(int irq, void *arg)
 {
 	struct drm_device *dev = arg;
-	struct shmob_drm_device *sdev = dev->dev_private;
+	struct shmob_drm_device *sdev = to_shmob_device(dev);
 	unsigned long flags;
 	u32 status;
 
@@ -119,7 +89,7 @@ static irqreturn_t shmob_drm_irq(int irq, void *arg)
 	spin_unlock_irqrestore(&sdev->irq_lock, flags);
 
 	if (status & LDINTR_VES) {
-		drm_handle_vblank(dev, 0);
+		drm_crtc_handle_vblank(&sdev->crtc.base);
 		shmob_drm_crtc_finish_page_flip(&sdev->crtc);
 	}
 
@@ -129,7 +99,7 @@ static irqreturn_t shmob_drm_irq(int irq, void *arg)
 DEFINE_DRM_GEM_DMA_FOPS(shmob_drm_fops);
 
 static const struct drm_driver shmob_drm_driver = {
-	.driver_features	= DRIVER_GEM | DRIVER_MODESET,
+	.driver_features	= DRIVER_GEM | DRIVER_MODESET | DRIVER_ATOMIC,
 	DRM_GEM_DMA_DRIVER_OPS,
 	.fops			= &shmob_drm_fops,
 	.name			= "shmob-drm",
@@ -147,26 +117,45 @@ static int shmob_drm_pm_suspend(struct device *dev)
 {
 	struct shmob_drm_device *sdev = dev_get_drvdata(dev);
 
-	drm_kms_helper_poll_disable(sdev->ddev);
-	shmob_drm_crtc_suspend(&sdev->crtc);
+	return drm_mode_config_helper_suspend(&sdev->ddev);
+}
+
+static int shmob_drm_pm_resume(struct device *dev)
+{
+	struct shmob_drm_device *sdev = dev_get_drvdata(dev);
+
+	return drm_mode_config_helper_resume(&sdev->ddev);
+}
+
+static int shmob_drm_pm_runtime_suspend(struct device *dev)
+{
+	struct shmob_drm_device *sdev = dev_get_drvdata(dev);
+
+	if (sdev->clock)
+		clk_disable_unprepare(sdev->clock);
 
 	return 0;
 }
 
-static int shmob_drm_pm_resume(struct device *dev)
+static int shmob_drm_pm_runtime_resume(struct device *dev)
 {
 	struct shmob_drm_device *sdev = dev_get_drvdata(dev);
+	int ret;
 
-	drm_modeset_lock_all(sdev->ddev);
-	shmob_drm_crtc_resume(&sdev->crtc);
-	drm_modeset_unlock_all(sdev->ddev);
+	if (sdev->clock) {
+		ret = clk_prepare_enable(sdev->clock);
+		if (ret < 0)
+			return ret;
+	}
 
-	drm_kms_helper_poll_enable(sdev->ddev);
 	return 0;
 }
 
-static DEFINE_SIMPLE_DEV_PM_OPS(shmob_drm_pm_ops,
-				shmob_drm_pm_suspend, shmob_drm_pm_resume);
+static const struct dev_pm_ops shmob_drm_pm_ops = {
+	SYSTEM_SLEEP_PM_OPS(shmob_drm_pm_suspend, shmob_drm_pm_resume)
+	RUNTIME_PM_OPS(shmob_drm_pm_runtime_suspend,
+		       shmob_drm_pm_runtime_resume, NULL)
+};
 
 /* -----------------------------------------------------------------------------
  * Platform driver
@@ -175,37 +164,45 @@ static DEFINE_SIMPLE_DEV_PM_OPS(shmob_drm_pm_ops,
 static void shmob_drm_remove(struct platform_device *pdev)
 {
 	struct shmob_drm_device *sdev = platform_get_drvdata(pdev);
-	struct drm_device *ddev = sdev->ddev;
+	struct drm_device *ddev = &sdev->ddev;
 
 	drm_dev_unregister(ddev);
+	drm_atomic_helper_shutdown(ddev);
 	drm_kms_helper_poll_fini(ddev);
-	free_irq(sdev->irq, ddev);
-	drm_dev_put(ddev);
 }
 
 static int shmob_drm_probe(struct platform_device *pdev)
 {
 	struct shmob_drm_platform_data *pdata = pdev->dev.platform_data;
+	const struct shmob_drm_config *config;
 	struct shmob_drm_device *sdev;
 	struct drm_device *ddev;
-	unsigned int i;
 	int ret;
 
-	if (pdata == NULL) {
+	config = of_device_get_match_data(&pdev->dev);
+	if (!config && !pdata) {
 		dev_err(&pdev->dev, "no platform data\n");
 		return -EINVAL;
 	}
 
 	/*
-	 * Allocate and initialize the driver private data, I/O resources and
-	 * clocks.
+	 * Allocate and initialize the DRM device, driver private data, I/O
+	 * resources and clocks.
 	 */
-	sdev = devm_kzalloc(&pdev->dev, sizeof(*sdev), GFP_KERNEL);
-	if (sdev == NULL)
-		return -ENOMEM;
+	sdev = devm_drm_dev_alloc(&pdev->dev, &shmob_drm_driver,
+				  struct shmob_drm_device, ddev);
+	if (IS_ERR(sdev))
+		return PTR_ERR(sdev);
 
+	ddev = &sdev->ddev;
 	sdev->dev = &pdev->dev;
+	if (config) {
+		sdev->config = *config;
+	} else {
 		sdev->pdata = pdata;
+		sdev->config.clk_source = pdata->clk_source;
+		sdev->config.clk_div = pdata->iface.clk_div;
+	}
 	spin_lock_init(&sdev->irq_lock);
 
 	platform_set_drvdata(pdev, sdev);
@@ -214,49 +211,32 @@ static int shmob_drm_probe(struct platform_device *pdev)
 	if (IS_ERR(sdev->mmio))
 		return PTR_ERR(sdev->mmio);
 
-	ret = shmob_drm_setup_clocks(sdev, pdata->clk_source);
+	ret = shmob_drm_setup_clocks(sdev, sdev->config.clk_source);
 	if (ret < 0)
 		return ret;
 
-	ret = shmob_drm_init_interface(sdev);
-	if (ret < 0)
+	ret = devm_pm_runtime_enable(&pdev->dev);
+	if (ret)
 		return ret;
 
-	/* Allocate and initialize the DRM device. */
-	ddev = drm_dev_alloc(&shmob_drm_driver, &pdev->dev);
-	if (IS_ERR(ddev))
-		return PTR_ERR(ddev);
-
-	sdev->ddev = ddev;
-	ddev->dev_private = sdev;
-
-	ret = shmob_drm_modeset_init(sdev);
-	if (ret < 0) {
-		dev_err(&pdev->dev, "failed to initialize mode setting\n");
-		goto err_free_drm_dev;
-	}
-
-	for (i = 0; i < 4; ++i) {
-		ret = shmob_drm_plane_create(sdev, i);
-		if (ret < 0) {
-			dev_err(&pdev->dev, "failed to create plane %u\n", i);
-			goto err_modeset_cleanup;
-		}
-	}
-
 	ret = drm_vblank_init(ddev, 1);
 	if (ret < 0) {
 		dev_err(&pdev->dev, "failed to initialize vblank\n");
-		goto err_modeset_cleanup;
+		return ret;
 	}
 
+	ret = shmob_drm_modeset_init(sdev);
+	if (ret < 0)
+		return dev_err_probe(&pdev->dev, ret,
+				     "failed to initialize mode setting\n");
+
 	ret = platform_get_irq(pdev, 0);
 	if (ret < 0)
 		goto err_modeset_cleanup;
 	sdev->irq = ret;
 
-	ret = request_irq(sdev->irq, shmob_drm_irq, 0, ddev->driver->name,
-			  ddev);
+	ret = devm_request_irq(&pdev->dev, sdev->irq, shmob_drm_irq, 0,
+			       ddev->driver->name, ddev);
 	if (ret < 0) {
 		dev_err(&pdev->dev, "failed to install IRQ handler\n");
 		goto err_modeset_cleanup;
@@ -268,28 +248,35 @@ static int shmob_drm_probe(struct platform_device *pdev)
 	 */
 	ret = drm_dev_register(ddev, 0);
 	if (ret < 0)
-		goto err_irq_uninstall;
+		goto err_modeset_cleanup;
 
 	drm_fbdev_generic_setup(ddev, 16);
 
 	return 0;
 
-err_irq_uninstall:
-	free_irq(sdev->irq, ddev);
 err_modeset_cleanup:
 	drm_kms_helper_poll_fini(ddev);
-err_free_drm_dev:
-	drm_dev_put(ddev);
-
 	return ret;
 }
 
+static const struct shmob_drm_config shmob_arm_config = {
+	.clk_source = SHMOB_DRM_CLK_BUS,
+	.clk_div = 5,
+};
+
+static const struct of_device_id shmob_drm_of_table[] __maybe_unused = {
+	{ .compatible = "renesas,r8a7740-lcdc",	.data = &shmob_arm_config, },
+	{ .compatible = "renesas,sh73a0-lcdc",	.data = &shmob_arm_config, },
+	{ /* sentinel */ }
+};
+
 static struct platform_driver shmob_drm_platform_driver = {
 	.probe		= shmob_drm_probe,
 	.remove_new	= shmob_drm_remove,
 	.driver		= {
 		.name	= "shmob-drm",
-		.pm	= pm_sleep_ptr(&shmob_drm_pm_ops),
+		.of_match_table = of_match_ptr(shmob_drm_of_table),
+		.pm	= &shmob_drm_pm_ops,
 	},
 };
 

drivers/gpu/drm/renesas/shmobile/shmob_drm_drv.h

@@ -20,23 +20,33 @@ struct clk;
 struct device;
 struct drm_device;
 
+struct shmob_drm_config {
+	enum shmob_drm_clk_source clk_source;
+	unsigned int clk_div;
+};
+
 struct shmob_drm_device {
 	struct device *dev;
 	const struct shmob_drm_platform_data *pdata;
+	struct shmob_drm_config config;
 
 	void __iomem *mmio;
 	struct clk *clock;
 	u32 lddckr;
-	u32 ldmt1r;
 
 	unsigned int irq;
 	spinlock_t irq_lock;		/* Protects hardware LDINTR register */
 
-	struct drm_device *ddev;
+	struct drm_device ddev;
 
 	struct shmob_drm_crtc crtc;
-	struct shmob_drm_encoder encoder;
-	struct shmob_drm_connector connector;
+	struct drm_encoder encoder;
+	struct drm_connector *connector;
 };
 
+static inline struct shmob_drm_device *to_shmob_device(struct drm_device *dev)
+{
+	return container_of(dev, struct shmob_drm_device, ddev);
+}
+
 #endif /* __SHMOB_DRM_DRV_H__ */

drivers/gpu/drm/renesas/shmobile/shmob_drm_kms.c

@@ -7,6 +7,7 @@
  * Laurent Pinchart (laurent.pinchart@ideasonboard.com)
  */
 
+#include <drm/drm_atomic_helper.h>
 #include <drm/drm_crtc.h>
 #include <drm/drm_crtc_helper.h>
 #include <drm/drm_fourcc.h>
@@ -17,6 +18,7 @@
 #include "shmob_drm_crtc.h"
 #include "shmob_drm_drv.h"
 #include "shmob_drm_kms.h"
+#include "shmob_drm_plane.h"
 #include "shmob_drm_regs.h"
 
 /* -----------------------------------------------------------------------------
@@ -27,53 +29,73 @@ static const struct shmob_drm_format_info shmob_drm_format_infos[] = {
 	{
 		.fourcc = DRM_FORMAT_RGB565,
 		.bpp = 16,
-		.yuv = false,
 		.lddfr = LDDFR_PKF_RGB16,
+		.ldddsr = LDDDSR_LS | LDDDSR_WS,
+		.ldbbsifr = LDBBSIFR_AL_1 | LDBBSIFR_SWPL | LDBBSIFR_SWPW |
+			    LDBBSIFR_RY | LDBBSIFR_RPKF_RGB16,
 	}, {
 		.fourcc = DRM_FORMAT_RGB888,
 		.bpp = 24,
-		.yuv = false,
 		.lddfr = LDDFR_PKF_RGB24,
+		.ldddsr = LDDDSR_LS | LDDDSR_WS | LDDDSR_BS,
+		.ldbbsifr = LDBBSIFR_AL_1 | LDBBSIFR_SWPL | LDBBSIFR_SWPW |
+			    LDBBSIFR_SWPB | LDBBSIFR_RY | LDBBSIFR_RPKF_RGB24,
 	}, {
 		.fourcc = DRM_FORMAT_ARGB8888,
 		.bpp = 32,
-		.yuv = false,
 		.lddfr = LDDFR_PKF_ARGB32,
+		.ldddsr = LDDDSR_LS,
+		.ldbbsifr = LDBBSIFR_AL_PK | LDBBSIFR_SWPL | LDBBSIFR_RY |
+			    LDBBSIFR_RPKF_ARGB32,
 	}, {
 		.fourcc = DRM_FORMAT_XRGB8888,
 		.bpp = 32,
-		.yuv = false,
 		.lddfr = LDDFR_PKF_ARGB32,
+		.ldddsr = LDDDSR_LS,
+		.ldbbsifr = LDBBSIFR_AL_1 | LDBBSIFR_SWPL | LDBBSIFR_RY |
+			    LDBBSIFR_RPKF_ARGB32,
 	}, {
 		.fourcc = DRM_FORMAT_NV12,
 		.bpp = 12,
-		.yuv = true,
 		.lddfr = LDDFR_CC | LDDFR_YF_420,
+		.ldddsr = LDDDSR_LS | LDDDSR_WS | LDDDSR_BS,
+		.ldbbsifr = LDBBSIFR_AL_1 | LDBBSIFR_SWPL | LDBBSIFR_SWPW |
+			    LDBBSIFR_SWPB | LDBBSIFR_CHRR_420,
 	}, {
 		.fourcc = DRM_FORMAT_NV21,
 		.bpp = 12,
-		.yuv = true,
 		.lddfr = LDDFR_CC | LDDFR_YF_420,
+		.ldddsr = LDDDSR_LS | LDDDSR_WS,
+		.ldbbsifr = LDBBSIFR_AL_1 | LDBBSIFR_SWPL | LDBBSIFR_SWPW |
+			    LDBBSIFR_CHRR_420,
 	}, {
 		.fourcc = DRM_FORMAT_NV16,
 		.bpp = 16,
-		.yuv = true,
 		.lddfr = LDDFR_CC | LDDFR_YF_422,
+		.ldddsr = LDDDSR_LS | LDDDSR_WS | LDDDSR_BS,
+		.ldbbsifr = LDBBSIFR_AL_1 | LDBBSIFR_SWPL | LDBBSIFR_SWPW |
+			    LDBBSIFR_SWPB | LDBBSIFR_CHRR_422,
 	}, {
 		.fourcc = DRM_FORMAT_NV61,
 		.bpp = 16,
-		.yuv = true,
 		.lddfr = LDDFR_CC | LDDFR_YF_422,
+		.ldddsr = LDDDSR_LS | LDDDSR_WS,
+		.ldbbsifr = LDBBSIFR_AL_1 | LDBBSIFR_SWPL | LDBBSIFR_SWPW |
+			    LDBBSIFR_CHRR_422,
 	}, {
 		.fourcc = DRM_FORMAT_NV24,
 		.bpp = 24,
-		.yuv = true,
 		.lddfr = LDDFR_CC | LDDFR_YF_444,
+		.ldddsr = LDDDSR_LS | LDDDSR_WS | LDDDSR_BS,
+		.ldbbsifr = LDBBSIFR_AL_1 | LDBBSIFR_SWPL | LDBBSIFR_SWPW |
+			    LDBBSIFR_SWPB | LDBBSIFR_CHRR_444,
 	}, {
 		.fourcc = DRM_FORMAT_NV42,
 		.bpp = 24,
-		.yuv = true,
 		.lddfr = LDDFR_CC | LDDFR_YF_444,
+		.ldddsr = LDDDSR_LS | LDDDSR_WS,
+		.ldbbsifr = LDBBSIFR_AL_1 | LDBBSIFR_SWPL | LDBBSIFR_SWPW |
+			    LDBBSIFR_CHRR_444,
 	},
 };
 
@@ -112,7 +134,7 @@ shmob_drm_fb_create(struct drm_device *dev, struct drm_file *file_priv,
 		return ERR_PTR(-EINVAL);
 	}
 
-	if (format->yuv) {
+	if (shmob_drm_format_is_yuv(format)) {
 		unsigned int chroma_cpp = format->bpp == 24 ? 2 : 1;
 
 		if (mode_cmd->pitches[1] != mode_cmd->pitches[0] * chroma_cpp) {
@@ -127,29 +149,40 @@ shmob_drm_fb_create(struct drm_device *dev, struct drm_file *file_priv,
 
 static const struct drm_mode_config_funcs shmob_drm_mode_config_funcs = {
 	.fb_create = shmob_drm_fb_create,
+	.atomic_check = drm_atomic_helper_check,
+	.atomic_commit = drm_atomic_helper_commit,
 };
 
 int shmob_drm_modeset_init(struct shmob_drm_device *sdev)
 {
+	struct drm_device *dev = &sdev->ddev;
 	int ret;
 
-	ret = drmm_mode_config_init(sdev->ddev);
+	ret = drmm_mode_config_init(dev);
 	if (ret)
 		return ret;
 
-	shmob_drm_crtc_create(sdev);
-	shmob_drm_encoder_create(sdev);
-	shmob_drm_connector_create(sdev, &sdev->encoder.encoder);
+	ret = shmob_drm_crtc_create(sdev);
+	if (ret < 0)
+		return ret;
+
+	ret = shmob_drm_encoder_create(sdev);
+	if (ret < 0)
+		return ret;
+
+	ret = shmob_drm_connector_create(sdev, &sdev->encoder);
+	if (ret < 0)
+		return ret;
 
-	drm_kms_helper_poll_init(sdev->ddev);
+	drm_mode_config_reset(dev);
 
-	sdev->ddev->mode_config.min_width = 0;
-	sdev->ddev->mode_config.min_height = 0;
-	sdev->ddev->mode_config.max_width = 4095;
-	sdev->ddev->mode_config.max_height = 4095;
-	sdev->ddev->mode_config.funcs = &shmob_drm_mode_config_funcs;
+	drm_kms_helper_poll_init(dev);
 
-	drm_helper_disable_unused_functions(sdev->ddev);
+	sdev->ddev.mode_config.min_width = 0;
+	sdev->ddev.mode_config.min_height = 0;
+	sdev->ddev.mode_config.max_width = 4095;
+	sdev->ddev.mode_config.max_height = 4095;
+	sdev->ddev.mode_config.funcs = &shmob_drm_mode_config_funcs;
 
 	return 0;
 }

drivers/gpu/drm/renesas/shmobile/shmob_drm_kms.h

@@ -17,11 +17,14 @@ struct shmob_drm_device;
 
 struct shmob_drm_format_info {
 	u32 fourcc;
-	unsigned int bpp;
-	bool yuv;
-	u32 lddfr;
+	u32 lddfr;	/* LCD Data Format Register */
+	u16 ldbbsifr;	/* CHn Source Image Format Register low bits */
+	u8 ldddsr;	/* LCDC Input Image Data Swap Register low bits */
+	u8 bpp;
 };
 
+#define shmob_drm_format_is_yuv(format)	((format)->lddfr & LDDFR_CC)
+
 const struct shmob_drm_format_info *shmob_drm_format_info(u32 fourcc);
 
 int shmob_drm_modeset_init(struct shmob_drm_device *sdev);

drivers/gpu/drm/renesas/shmobile/shmob_drm_plane.c

@@ -7,11 +7,14 @@
  * Laurent Pinchart (laurent.pinchart@ideasonboard.com)
  */
 
+#include <drm/drm_atomic.h>
+#include <drm/drm_atomic_helper.h>
 #include <drm/drm_crtc.h>
 #include <drm/drm_fb_dma_helper.h>
 #include <drm/drm_fourcc.h>
 #include <drm/drm_framebuffer.h>
 #include <drm/drm_gem_dma_helper.h>
+#include <drm/drm_plane_helper.h>
 
 #include "shmob_drm_drv.h"
 #include "shmob_drm_kms.h"
@@ -19,102 +22,84 @@
 #include "shmob_drm_regs.h"
 
 struct shmob_drm_plane {
-	struct drm_plane plane;
+	struct drm_plane base;
 	unsigned int index;
-	unsigned int alpha;
+};
+
+struct shmob_drm_plane_state {
+	struct drm_plane_state base;
 
 	const struct shmob_drm_format_info *format;
-	unsigned long dma[2];
-
-	unsigned int src_x;
-	unsigned int src_y;
-	unsigned int crtc_x;
-	unsigned int crtc_y;
-	unsigned int crtc_w;
-	unsigned int crtc_h;
+	u32 dma[2];
 };
 
-#define to_shmob_plane(p)	container_of(p, struct shmob_drm_plane, plane)
+static inline struct shmob_drm_plane *to_shmob_plane(struct drm_plane *plane)
+{
+	return container_of(plane, struct shmob_drm_plane, base);
+}
 
-static void shmob_drm_plane_compute_base(struct shmob_drm_plane *splane,
-					 struct drm_framebuffer *fb,
-					 int x, int y)
+static inline struct shmob_drm_plane_state *to_shmob_plane_state(struct drm_plane_state *state)
 {
+	return container_of(state, struct shmob_drm_plane_state, base);
+}
+
+static void shmob_drm_plane_compute_base(struct shmob_drm_plane_state *sstate)
+{
+	struct drm_framebuffer *fb = sstate->base.fb;
+	unsigned int x = sstate->base.src_x >> 16;
+	unsigned int y = sstate->base.src_y >> 16;
 	struct drm_gem_dma_object *gem;
 	unsigned int bpp;
 
-	bpp = splane->format->yuv ? 8 : splane->format->bpp;
+	bpp = shmob_drm_format_is_yuv(sstate->format) ? 8 : sstate->format->bpp;
 	gem = drm_fb_dma_get_gem_obj(fb, 0);
-	splane->dma[0] = gem->dma_addr + fb->offsets[0]
+	sstate->dma[0] = gem->dma_addr + fb->offsets[0]
 		       + y * fb->pitches[0] + x * bpp / 8;
 
-	if (splane->format->yuv) {
-		bpp = splane->format->bpp - 8;
+	if (shmob_drm_format_is_yuv(sstate->format)) {
+		bpp = sstate->format->bpp - 8;
 		gem = drm_fb_dma_get_gem_obj(fb, 1);
-		splane->dma[1] = gem->dma_addr + fb->offsets[1]
+		sstate->dma[1] = gem->dma_addr + fb->offsets[1]
 			       + y / (bpp == 4 ? 2 : 1) * fb->pitches[1]
 			       + x * (bpp == 16 ? 2 : 1);
 	}
 }
 
-static void __shmob_drm_plane_setup(struct shmob_drm_plane *splane,
-				    struct drm_framebuffer *fb)
+static void shmob_drm_primary_plane_setup(struct shmob_drm_plane *splane,
+					  struct drm_plane_state *state)
 {
-	struct shmob_drm_device *sdev = splane->plane.dev->dev_private;
+	struct shmob_drm_plane_state *sstate = to_shmob_plane_state(state);
+	struct shmob_drm_device *sdev = to_shmob_device(splane->base.dev);
+	struct drm_framebuffer *fb = state->fb;
+
+	/* TODO: Handle YUV colorspaces. Hardcode REC709 for now. */
+	lcdc_write(sdev, LDDFR, sstate->format->lddfr | LDDFR_CF1);
+	lcdc_write(sdev, LDMLSR, fb->pitches[0]);
+
+	/* Word and long word swap. */
+	lcdc_write(sdev, LDDDSR, sstate->format->ldddsr);
+
+	lcdc_write_mirror(sdev, LDSA1R, sstate->dma[0]);
+	if (shmob_drm_format_is_yuv(sstate->format))
+		lcdc_write_mirror(sdev, LDSA2R, sstate->dma[1]);
+
+	lcdc_write(sdev, LDRCNTR, lcdc_read(sdev, LDRCNTR) ^ LDRCNTR_MRS);
+}
+
+static void shmob_drm_overlay_plane_setup(struct shmob_drm_plane *splane,
+					  struct drm_plane_state *state)
+{
+	struct shmob_drm_plane_state *sstate = to_shmob_plane_state(state);
+	struct shmob_drm_device *sdev = to_shmob_device(splane->base.dev);
+	struct drm_framebuffer *fb = state->fb;
 	u32 format;
 
 	/* TODO: Support ROP3 mode */
-	format = LDBBSIFR_EN | (splane->alpha << LDBBSIFR_LAY_SHIFT);
-
-	switch (splane->format->fourcc) {
-	case DRM_FORMAT_RGB565:
-	case DRM_FORMAT_NV21:
-	case DRM_FORMAT_NV61:
-	case DRM_FORMAT_NV42:
-		format |= LDBBSIFR_SWPL | LDBBSIFR_SWPW;
-		break;
-	case DRM_FORMAT_RGB888:
-	case DRM_FORMAT_NV12:
-	case DRM_FORMAT_NV16:
-	case DRM_FORMAT_NV24:
-		format |= LDBBSIFR_SWPL | LDBBSIFR_SWPW | LDBBSIFR_SWPB;
-		break;
-	case DRM_FORMAT_ARGB8888:
-	case DRM_FORMAT_XRGB8888:
-	default:
-		format |= LDBBSIFR_SWPL;
-		break;
-	}
-
-	switch (splane->format->fourcc) {
-	case DRM_FORMAT_RGB565:
-		format |= LDBBSIFR_AL_1 | LDBBSIFR_RY | LDBBSIFR_RPKF_RGB16;
-		break;
-	case DRM_FORMAT_RGB888:
-		format |= LDBBSIFR_AL_1 | LDBBSIFR_RY | LDBBSIFR_RPKF_RGB24;
-		break;
-	case DRM_FORMAT_ARGB8888:
-		format |= LDBBSIFR_AL_PK | LDBBSIFR_RY | LDDFR_PKF_ARGB32;
-		break;
-	case DRM_FORMAT_XRGB8888:
-		format |= LDBBSIFR_AL_1 | LDBBSIFR_RY | LDDFR_PKF_ARGB32;
-		break;
-	case DRM_FORMAT_NV12:
-	case DRM_FORMAT_NV21:
-		format |= LDBBSIFR_AL_1 | LDBBSIFR_CHRR_420;
-		break;
-	case DRM_FORMAT_NV16:
-	case DRM_FORMAT_NV61:
-		format |= LDBBSIFR_AL_1 | LDBBSIFR_CHRR_422;
-		break;
-	case DRM_FORMAT_NV24:
-	case DRM_FORMAT_NV42:
-		format |= LDBBSIFR_AL_1 | LDBBSIFR_CHRR_444;
-		break;
-	}
+	format = LDBBSIFR_EN | ((state->alpha >> 8) << LDBBSIFR_LAY_SHIFT) |
+		 sstate->format->ldbbsifr;
 
 #define plane_reg_dump(sdev, splane, reg) \
-	dev_dbg(sdev->ddev->dev, "%s(%u): %s 0x%08x 0x%08x\n", __func__, \
+	dev_dbg(sdev->ddev.dev, "%s(%u): %s 0x%08x 0x%08x\n", __func__, \
 		splane->index, #reg, \
 		lcdc_read(sdev, reg(splane->index)), \
 		lcdc_read(sdev, reg(splane->index) + LCDC_SIDE_B_OFFSET))
@@ -127,29 +112,27 @@ static void __shmob_drm_plane_setup(struct shmob_drm_plane *splane,
 	plane_reg_dump(sdev, splane, LDBnBSACR);
 
 	lcdc_write(sdev, LDBCR, LDBCR_UPC(splane->index));
-	dev_dbg(sdev->ddev->dev, "%s(%u): %s 0x%08x\n", __func__, splane->index,
+	dev_dbg(sdev->ddev.dev, "%s(%u): %s 0x%08x\n", __func__, splane->index,
 		"LDBCR", lcdc_read(sdev, LDBCR));
 
 	lcdc_write(sdev, LDBnBSIFR(splane->index), format);
 
 	lcdc_write(sdev, LDBnBSSZR(splane->index),
-		   (splane->crtc_h << LDBBSSZR_BVSS_SHIFT) |
-		   (splane->crtc_w << LDBBSSZR_BHSS_SHIFT));
+		   (state->crtc_h << LDBBSSZR_BVSS_SHIFT) |
+		   (state->crtc_w << LDBBSSZR_BHSS_SHIFT));
 	lcdc_write(sdev, LDBnBLOCR(splane->index),
-		   (splane->crtc_y << LDBBLOCR_CVLC_SHIFT) |
-		   (splane->crtc_x << LDBBLOCR_CHLC_SHIFT));
+		   (state->crtc_y << LDBBLOCR_CVLC_SHIFT) |
+		   (state->crtc_x << LDBBLOCR_CHLC_SHIFT));
 	lcdc_write(sdev, LDBnBSMWR(splane->index),
 		   fb->pitches[0] << LDBBSMWR_BSMW_SHIFT);
 
-	shmob_drm_plane_compute_base(splane, fb, splane->src_x, splane->src_y);
-
-	lcdc_write(sdev, LDBnBSAYR(splane->index), splane->dma[0]);
-	if (splane->format->yuv)
-		lcdc_write(sdev, LDBnBSACR(splane->index), splane->dma[1]);
+	lcdc_write(sdev, LDBnBSAYR(splane->index), sstate->dma[0]);
+	if (shmob_drm_format_is_yuv(sstate->format))
+		lcdc_write(sdev, LDBnBSACR(splane->index), sstate->dma[1]);
 
 	lcdc_write(sdev, LDBCR,
 		   LDBCR_UPF(splane->index) | LDBCR_UPD(splane->index));
-	dev_dbg(sdev->ddev->dev, "%s(%u): %s 0x%08x\n", __func__, splane->index,
+	dev_dbg(sdev->ddev.dev, "%s(%u): %s 0x%08x\n", __func__, splane->index,
 		"LDBCR", lcdc_read(sdev, LDBCR));
 
 	plane_reg_dump(sdev, splane, LDBnBSIFR);
@@ -160,75 +143,143 @@ static void __shmob_drm_plane_setup(struct shmob_drm_plane *splane,
 	plane_reg_dump(sdev, splane, LDBnBSACR);
 }
 
-void shmob_drm_plane_setup(struct drm_plane *plane)
+static int shmob_drm_plane_atomic_check(struct drm_plane *plane,
+					struct drm_atomic_state *state)
 {
-	struct shmob_drm_plane *splane = to_shmob_plane(plane);
+	struct drm_plane_state *new_plane_state = drm_atomic_get_new_plane_state(state, plane);
+	struct shmob_drm_plane_state *sstate = to_shmob_plane_state(new_plane_state);
+	struct drm_crtc_state *crtc_state;
+	bool is_primary = plane->type == DRM_PLANE_TYPE_PRIMARY;
+	int ret;
 
-	if (plane->fb == NULL)
-		return;
+	if (!new_plane_state->crtc) {
+		/*
+		 * The visible field is not reset by the DRM core but only
+		 * updated by drm_atomic_helper_check_plane_state(), set it
+		 * manually.
+		 */
+		new_plane_state->visible = false;
+		sstate->format = NULL;
+		return 0;
+	}
 
-	__shmob_drm_plane_setup(splane, plane->fb);
-}
+	crtc_state = drm_atomic_get_crtc_state(state, new_plane_state->crtc);
+	if (IS_ERR(crtc_state))
+		return PTR_ERR(crtc_state);
 
-static int
-shmob_drm_plane_update(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 drm_modeset_acquire_ctx *ctx)
-{
-	struct shmob_drm_plane *splane = to_shmob_plane(plane);
-	struct shmob_drm_device *sdev = plane->dev->dev_private;
-	const struct shmob_drm_format_info *format;
+	ret = drm_atomic_helper_check_plane_state(new_plane_state, crtc_state,
+						  DRM_PLANE_NO_SCALING,
+						  DRM_PLANE_NO_SCALING,
+						  !is_primary, true);
+	if (ret < 0)
+		return ret;
 
-	format = shmob_drm_format_info(fb->format->format);
-	if (format == NULL) {
-		dev_dbg(sdev->dev, "update_plane: unsupported format %08x\n",
-			fb->format->format);
-		return -EINVAL;
+	if (!new_plane_state->visible) {
+		sstate->format = NULL;
+		return 0;
 	}
 
-	if (src_w >> 16 != crtc_w || src_h >> 16 != crtc_h) {
-		dev_dbg(sdev->dev, "%s: scaling not supported\n", __func__);
+	sstate->format = shmob_drm_format_info(new_plane_state->fb->format->format);
+	if (!sstate->format) {
+		dev_dbg(plane->dev->dev,
+			"plane_atomic_check: unsupported format %p4cc\n",
+			&new_plane_state->fb->format->format);
 		return -EINVAL;
 	}
 
-	splane->format = format;
+	shmob_drm_plane_compute_base(sstate);
 
-	splane->src_x = src_x >> 16;
-	splane->src_y = src_y >> 16;
-	splane->crtc_x = crtc_x;
-	splane->crtc_y = crtc_y;
-	splane->crtc_w = crtc_w;
-	splane->crtc_h = crtc_h;
-
-	__shmob_drm_plane_setup(splane, fb);
 	return 0;
 }
 
-static int shmob_drm_plane_disable(struct drm_plane *plane,
-				   struct drm_modeset_acquire_ctx *ctx)
+static void shmob_drm_plane_atomic_update(struct drm_plane *plane,
+					  struct drm_atomic_state *state)
 {
+	struct drm_plane_state *new_plane_state = drm_atomic_get_new_plane_state(state, plane);
 	struct shmob_drm_plane *splane = to_shmob_plane(plane);
-	struct shmob_drm_device *sdev = plane->dev->dev_private;
 
-	splane->format = NULL;
+	if (!new_plane_state->visible)
+		return;
 
+	if (plane->type == DRM_PLANE_TYPE_PRIMARY)
+		shmob_drm_primary_plane_setup(splane, new_plane_state);
+	else
+		shmob_drm_overlay_plane_setup(splane, new_plane_state);
+}
+
+static void shmob_drm_plane_atomic_disable(struct drm_plane *plane,
+					   struct drm_atomic_state *state)
+{
+	struct drm_plane_state *old_state = drm_atomic_get_old_plane_state(state, plane);
+	struct shmob_drm_device *sdev = to_shmob_device(plane->dev);
+	struct shmob_drm_plane *splane = to_shmob_plane(plane);
+
+	if (!old_state->crtc)
+		return;
+
+	if (plane->type != DRM_PLANE_TYPE_OVERLAY)
+		return;
+
+	lcdc_write(sdev, LDBCR, LDBCR_UPC(splane->index));
 	lcdc_write(sdev, LDBnBSIFR(splane->index), 0);
-	return 0;
+	lcdc_write(sdev, LDBCR,
+			 LDBCR_UPF(splane->index) | LDBCR_UPD(splane->index));
+}
+
+static struct drm_plane_state *
+shmob_drm_plane_atomic_duplicate_state(struct drm_plane *plane)
+{
+	struct shmob_drm_plane_state *state;
+	struct shmob_drm_plane_state *copy;
+
+	if (WARN_ON(!plane->state))
+		return NULL;
+
+	state = to_shmob_plane_state(plane->state);
+	copy = kmemdup(state, sizeof(*state), GFP_KERNEL);
+	if (copy == NULL)
+		return NULL;
+
+	__drm_atomic_helper_plane_duplicate_state(plane, &copy->base);
+
+	return &copy->base;
 }
 
-static void shmob_drm_plane_destroy(struct drm_plane *plane)
+static void shmob_drm_plane_atomic_destroy_state(struct drm_plane *plane,
+						 struct drm_plane_state *state)
 {
-	drm_plane_force_disable(plane);
-	drm_plane_cleanup(plane);
+	__drm_atomic_helper_plane_destroy_state(state);
+	kfree(to_shmob_plane_state(state));
+}
+
+static void shmob_drm_plane_reset(struct drm_plane *plane)
+{
+	struct shmob_drm_plane_state *state;
+
+	if (plane->state) {
+		shmob_drm_plane_atomic_destroy_state(plane, plane->state);
+		plane->state = NULL;
+	}
+
+	state = kzalloc(sizeof(*state), GFP_KERNEL);
+	if (state == NULL)
+		return;
+
+	__drm_atomic_helper_plane_reset(plane, &state->base);
 }
 
+static const struct drm_plane_helper_funcs shmob_drm_plane_helper_funcs = {
+	.atomic_check = shmob_drm_plane_atomic_check,
+	.atomic_update = shmob_drm_plane_atomic_update,
+	.atomic_disable = shmob_drm_plane_atomic_disable,
+};
+
 static const struct drm_plane_funcs shmob_drm_plane_funcs = {
-	.update_plane = shmob_drm_plane_update,
-	.disable_plane = shmob_drm_plane_disable,
-	.destroy = shmob_drm_plane_destroy,
+	.update_plane = drm_atomic_helper_update_plane,
+	.disable_plane = drm_atomic_helper_disable_plane,
+	.reset = shmob_drm_plane_reset,
+	.atomic_duplicate_state = shmob_drm_plane_atomic_duplicate_state,
+	.atomic_destroy_state = shmob_drm_plane_atomic_destroy_state,
 };
 
 static const uint32_t formats[] = {
@@ -244,22 +295,23 @@ static const uint32_t formats[] = {
 	DRM_FORMAT_NV42,
 };
 
-int shmob_drm_plane_create(struct shmob_drm_device *sdev, unsigned int index)
+struct drm_plane *shmob_drm_plane_create(struct shmob_drm_device *sdev,
+					 enum drm_plane_type type,
+					 unsigned int index)
 {
 	struct shmob_drm_plane *splane;
-	int ret;
 
-	splane = devm_kzalloc(sdev->dev, sizeof(*splane), GFP_KERNEL);
-	if (splane == NULL)
-		return -ENOMEM;
+	splane = drmm_universal_plane_alloc(&sdev->ddev,
+					    struct shmob_drm_plane, base, 1,
+					    &shmob_drm_plane_funcs, formats,
+					    ARRAY_SIZE(formats),  NULL, type,
+					    NULL);
+	if (IS_ERR(splane))
+		return ERR_CAST(splane);
 
 	splane->index = index;
-	splane->alpha = 255;
 
-	ret = drm_universal_plane_init(sdev->ddev, &splane->plane, 1,
-				       &shmob_drm_plane_funcs,
-				       formats, ARRAY_SIZE(formats), NULL,
-				       DRM_PLANE_TYPE_OVERLAY, NULL);
+	drm_plane_helper_add(&splane->base, &shmob_drm_plane_helper_funcs);
 
-	return ret;
+	return &splane->base;
 }

drivers/gpu/drm/renesas/shmobile/shmob_drm_plane.h

@@ -13,7 +13,8 @@
 struct drm_plane;
 struct shmob_drm_device;
 
-int shmob_drm_plane_create(struct shmob_drm_device *sdev, unsigned int index);
-void shmob_drm_plane_setup(struct drm_plane *plane);
+struct drm_plane *shmob_drm_plane_create(struct shmob_drm_device *sdev,
+					 enum drm_plane_type type,
+					 unsigned int index);
 
 #endif /* __SHMOB_DRM_PLANE_H__ */

include/linux/platform_data/shmob_drm.h

@@ -10,7 +10,7 @@
 #ifndef __SHMOB_DRM_H__
 #define __SHMOB_DRM_H__
 
-#include <drm/drm_mode.h>
+#include <video/videomode.h>
 
 enum shmob_drm_clk_source {
 	SHMOB_DRM_CLK_BUS,
@@ -18,72 +18,21 @@ enum shmob_drm_clk_source {
 	SHMOB_DRM_CLK_EXTERNAL,
 };
 
-enum shmob_drm_interface {
-	SHMOB_DRM_IFACE_RGB8,		/* 24bpp, 8:8:8 */
-	SHMOB_DRM_IFACE_RGB9,		/* 18bpp, 9:9 */
-	SHMOB_DRM_IFACE_RGB12A,		/* 24bpp, 12:12 */
-	SHMOB_DRM_IFACE_RGB12B,		/* 12bpp */
-	SHMOB_DRM_IFACE_RGB16,		/* 16bpp */
-	SHMOB_DRM_IFACE_RGB18,		/* 18bpp */
-	SHMOB_DRM_IFACE_RGB24,		/* 24bpp */
-	SHMOB_DRM_IFACE_YUV422,		/* 16bpp */
-	SHMOB_DRM_IFACE_SYS8A,		/* 24bpp, 8:8:8 */
-	SHMOB_DRM_IFACE_SYS8B,		/* 18bpp, 8:8:2 */
-	SHMOB_DRM_IFACE_SYS8C,		/* 18bpp, 2:8:8 */
-	SHMOB_DRM_IFACE_SYS8D,		/* 16bpp, 8:8 */
-	SHMOB_DRM_IFACE_SYS9,		/* 18bpp, 9:9 */
-	SHMOB_DRM_IFACE_SYS12,		/* 24bpp, 12:12 */
-	SHMOB_DRM_IFACE_SYS16A,		/* 16bpp */
-	SHMOB_DRM_IFACE_SYS16B,		/* 18bpp, 16:2 */
-	SHMOB_DRM_IFACE_SYS16C,		/* 18bpp, 2:16 */
-	SHMOB_DRM_IFACE_SYS18,		/* 18bpp */
-	SHMOB_DRM_IFACE_SYS24,		/* 24bpp */
-};
-
-struct shmob_drm_backlight_data {
-	const char *name;
-	int max_brightness;
-	int (*get_brightness)(void);
-	int (*set_brightness)(int brightness);
-};
-
 struct shmob_drm_panel_data {
 	unsigned int width_mm;		/* Panel width in mm */
 	unsigned int height_mm;		/* Panel height in mm */
-	struct drm_mode_modeinfo mode;
+	struct videomode mode;
 };
 
-struct shmob_drm_sys_interface_data {
-	unsigned int read_latch:6;
-	unsigned int read_setup:8;
-	unsigned int read_cycle:8;
-	unsigned int read_strobe:8;
-	unsigned int write_setup:8;
-	unsigned int write_cycle:8;
-	unsigned int write_strobe:8;
-	unsigned int cs_setup:3;
-	unsigned int vsync_active_high:1;
-	unsigned int vsync_dir_input:1;
-};
-
-#define SHMOB_DRM_IFACE_FL_DWPOL (1 << 0) /* Rising edge dot clock data latch */
-#define SHMOB_DRM_IFACE_FL_DIPOL (1 << 1) /* Active low display enable */
-#define SHMOB_DRM_IFACE_FL_DAPOL (1 << 2) /* Active low display data */
-#define SHMOB_DRM_IFACE_FL_HSCNT (1 << 3) /* Disable HSYNC during VBLANK */
-#define SHMOB_DRM_IFACE_FL_DWCNT (1 << 4) /* Disable dotclock during blanking */
-
 struct shmob_drm_interface_data {
-	enum shmob_drm_interface interface;
-	struct shmob_drm_sys_interface_data sys;
+	unsigned int bus_fmt;		/* MEDIA_BUS_FMT_* */
 	unsigned int clk_div;
-	unsigned int flags;
 };
 
 struct shmob_drm_platform_data {
 	enum shmob_drm_clk_source clk_source;
 	struct shmob_drm_interface_data iface;
 	struct shmob_drm_panel_data panel;
-	struct shmob_drm_backlight_data backlight;
 };
 
 #endif /* __SHMOB_DRM_H__ */

include/uapi/linux/media-bus-format.h

@@ -34,7 +34,7 @@
 
 #define MEDIA_BUS_FMT_FIXED			0x0001
 
-/* RGB - next is	0x1025 */
+/* RGB - next is	0x1026 */
 #define MEDIA_BUS_FMT_RGB444_1X12		0x1016
 #define MEDIA_BUS_FMT_RGB444_2X8_PADHI_BE	0x1001
 #define MEDIA_BUS_FMT_RGB444_2X8_PADHI_LE	0x1002
@@ -46,6 +46,7 @@
 #define MEDIA_BUS_FMT_RGB565_2X8_BE		0x1007
 #define MEDIA_BUS_FMT_RGB565_2X8_LE		0x1008
 #define MEDIA_BUS_FMT_RGB666_1X18		0x1009
+#define MEDIA_BUS_FMT_RGB666_2X9_BE		0x1025
 #define MEDIA_BUS_FMT_BGR666_1X18		0x1023
 #define MEDIA_BUS_FMT_RBG888_1X24		0x100e
 #define MEDIA_BUS_FMT_RGB666_1X24_CPADHI	0x1015