Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linux

Pull drm updates from Dave Airlie:
 "Highlights:

   - drm:

     Generic display port aux features, primary plane support, drm
     master management fixes, logging cleanups, enforced locking checks
     (instead of docs), documentation improvements, minor number
     handling cleanup, pseudofs for shared inodes.

   - ttm:

     add ability to allocate from both ends

   - i915:

     broadwell features, power domain and runtime pm, per-process
     address space infrastructure (not enabled)

   - msm:

     power management, hdmi audio support

   - nouveau:

     ongoing GPU fault recovery, initial maxwell support, random fixes

   - exynos:

     refactored driver to clean up a lot of abstraction, DP support
     moved into drm, LVDS bridge support added, parallel panel support

   - gma500:

     SGX MMU support, SGX irq handling, asle irq work fixes

   - radeon:

     video engine bringup, ring handling fixes, use dp aux helpers

   - vmwgfx:

     add rendernode support"

* 'drm-next' of git://people.freedesktop.org/~airlied/linux: (849 commits)
  DRM: armada: fix corruption while loading cursors
  drm/dp_helper: don't return EPROTO for defers (v2)
  drm/bridge: export ptn3460_init function
  drm/exynos: remove MODULE_DEVICE_TABLE definitions
  ARM: dts: exynos4412-trats2: enable exynos/fimd node
  ARM: dts: exynos4210-trats: enable exynos/fimd node
  ARM: dts: exynos4412-trats2: add panel node
  ARM: dts: exynos4210-trats: add panel node
  ARM: dts: exynos4: add MIPI DSI Master node
  drm/panel: add S6E8AA0 driver
  ARM: dts: exynos4210-universal_c210: add proper panel node
  drm/panel: add ld9040 driver
  panel/ld9040: add DT bindings
  panel/s6e8aa0: add DT bindings
  drm/exynos: add DSIM driver
  exynos/dsim: add DT bindings
  drm/exynos: disallow fbdev initialization if no device is connected
  drm/mipi_dsi: create dsi devices only for nodes with reg property
  drm/mipi_dsi: add flags to DSI messages
  Skip intel_crt_init for Dell XPS 8700
  ...

Documentation/devicetree/bindings/drm/bridge/ptn3460.txt

+ptn3460 bridge bindings
+
+Required properties:
+	- compatible: "nxp,ptn3460"
+	- reg: i2c address of the bridge
+	- powerdown-gpio: OF device-tree gpio specification
+	- reset-gpio: OF device-tree gpio specification
+	- edid-emulation: The EDID emulation entry to use
+		+-------+------------+------------------+
+		| Value | Resolution | Description      |
+		|   0   |  1024x768  | NXP Generic      |
+		|   1   |  1920x1080 | NXP Generic      |
+		|   2   |  1920x1080 | NXP Generic      |
+		|   3   |  1600x900  | Samsung LTM200KT |
+		|   4   |  1920x1080 | Samsung LTM230HT |
+		|   5   |  1366x768  | NXP Generic      |
+		|   6   |  1600x900  | ChiMei M215HGE   |
+		+-------+------------+------------------+
+
+Example:
+	lvds-bridge@20 {
+		compatible = "nxp,ptn3460";
+		reg = <0x20>;
+		powerdown-gpio = <&gpy2 5 1 0 0>;
+		reset-gpio = <&gpx1 5 1 0 0>;
+		edid-emulation = <5>;
+	};

Documentation/devicetree/bindings/drm/i2c/tda998x.txt

+Device-Tree bindings for the NXP TDA998x HDMI transmitter
+
+Required properties;
+  - compatible: must be "nxp,tda998x"
+
+Optional properties:
+  - interrupts: interrupt number and trigger type
+	default: polling
+
+  - pinctrl-0: pin control group to be used for
+	screen plug/unplug interrupt.
+
+  - pinctrl-names: must contain a "default" entry.
+
+  - video-ports: 24 bits value which defines how the video controller
+	output is wired to the TDA998x input - default: <0x230145>
+
+Example:
+
+	tda998x: hdmi-encoder {
+		compatible = "nxp,tda998x";
+		reg = <0x70>;
+		interrupt-parent = <&gpio0>;
+		interrupts = <27 2>;		/* falling edge */
+		pinctrl-0 = <&pmx_camera>;
+		pinctrl-names = "default";
+	};

Documentation/devicetree/bindings/gpu/nvidia,tegra20-host1x.txt

@@ -190,6 +190,48 @@ of the following host1x client modules:
   - nvidia,edid: supplies a binary EDID blob
   - nvidia,panel: phandle of a display panel
 
+- sor: serial output resource
+
+  Required properties:
+  - compatible: "nvidia,tegra124-sor"
+  - reg: Physical base address and length of the controller's registers.
+  - interrupts: The interrupt outputs from the controller.
+  - clocks: Must contain an entry for each entry in clock-names.
+    See ../clocks/clock-bindings.txt for details.
+  - clock-names: Must include the following entries:
+    - sor: clock input for the SOR hardware
+    - parent: input for the pixel clock
+    - dp: reference clock for the SOR clock
+    - safe: safe reference for the SOR clock during power up
+  - resets: Must contain an entry for each entry in reset-names.
+    See ../reset/reset.txt for details.
+  - reset-names: Must include the following entries:
+    - sor
+
+  Optional properties:
+  - nvidia,ddc-i2c-bus: phandle of an I2C controller used for DDC EDID probing
+  - nvidia,hpd-gpio: specifies a GPIO used for hotplug detection
+  - nvidia,edid: supplies a binary EDID blob
+  - nvidia,panel: phandle of a display panel
+
+  Optional properties when driving an eDP output:
+  - nvidia,dpaux: phandle to a DispayPort AUX interface
+
+- dpaux: DisplayPort AUX interface
+  - compatible: "nvidia,tegra124-dpaux"
+  - reg: Physical base address and length of the controller's registers.
+  - interrupts: The interrupt outputs from the controller.
+  - clocks: Must contain an entry for each entry in clock-names.
+    See ../clocks/clock-bindings.txt for details.
+  - clock-names: Must include the following entries:
+    - dpaux: clock input for the DPAUX hardware
+    - parent: reference clock
+  - resets: Must contain an entry for each entry in reset-names.
+    See ../reset/reset.txt for details.
+  - reset-names: Must include the following entries:
+    - dpaux
+  - vdd-supply: phandle of a supply that powers the DisplayPort link
+
 Example:
 
 / {

Documentation/devicetree/bindings/panel/lg,ld070wx3-sl01.txt

+LG Corporation 7" WXGA TFT LCD panel
+
+Required properties:
+- compatible: should be "lg,ld070wx3-sl01"
+
+This binding is compatible with the simple-panel binding, which is specified
+in simple-panel.txt in this directory.

Documentation/devicetree/bindings/panel/lg,lh500wx1-sd03.txt

+LG Corporation 5" HD TFT LCD panel
+
+Required properties:
+- compatible: should be "lg,lh500wx1-sd03"
+
+This binding is compatible with the simple-panel binding, which is specified
+in simple-panel.txt in this directory.

Documentation/devicetree/bindings/panel/lg,lp129qe.txt

+LG 12.9" (2560x1700 pixels) TFT LCD panel
+
+Required properties:
+- compatible: should be "lg,lp129qe"
+
+This binding is compatible with the simple-panel binding, which is specified
+in simple-panel.txt in this directory.

Documentation/devicetree/bindings/panel/samsung,ld9040.txt

+Samsung LD9040 AMOLED LCD parallel RGB panel with SPI control bus
+
+Required properties:
+  - compatible: "samsung,ld9040"
+  - reg: address of the panel on SPI bus
+  - vdd3-supply: core voltage supply
+  - vci-supply: voltage supply for analog circuits
+  - reset-gpios: a GPIO spec for the reset pin
+  - display-timings: timings for the connected panel according to [1]
+
+The panel must obey rules for SPI slave device specified in document [2].
+
+Optional properties:
+  - power-on-delay: delay after turning regulators on [ms]
+  - reset-delay: delay after reset sequence [ms]
+  - panel-width-mm: physical panel width [mm]
+  - panel-height-mm: physical panel height [mm]
+
+The device node can contain one 'port' child node with one child
+'endpoint' node, according to the bindings defined in [3]. This
+node should describe panel's video bus.
+
+[1]: Documentation/devicetree/bindings/video/display-timing.txt
+[2]: Documentation/devicetree/bindings/spi/spi-bus.txt
+[3]: Documentation/devicetree/bindings/media/video-interfaces.txt
+
+Example:
+
+	lcd@0 {
+		compatible = "samsung,ld9040";
+		reg = <0>;
+		vdd3-supply = <&ldo7_reg>;
+		vci-supply = <&ldo17_reg>;
+		reset-gpios = <&gpy4 5 0>;
+		spi-max-frequency = <1200000>;
+		spi-cpol;
+		spi-cpha;
+		power-on-delay = <10>;
+		reset-delay = <10>;
+		panel-width-mm = <90>;
+		panel-height-mm = <154>;
+
+		display-timings {
+			timing {
+				clock-frequency = <23492370>;
+				hactive = <480>;
+				vactive = <800>;
+				hback-porch = <16>;
+				hfront-porch = <16>;
+				vback-porch = <2>;
+				vfront-porch = <28>;
+				hsync-len = <2>;
+				vsync-len = <1>;
+				hsync-active = <0>;
+				vsync-active = <0>;
+				de-active = <0>;
+				pixelclk-active = <0>;
+			};
+		};
+
+		port {
+			lcd_ep: endpoint {
+				remote-endpoint = <&fimd_dpi_ep>;
+			};
+		};
+	};

Documentation/devicetree/bindings/panel/samsung,s6e8aa0.txt

+Samsung S6E8AA0 AMOLED LCD 5.3 inch panel
+
+Required properties:
+  - compatible: "samsung,s6e8aa0"
+  - reg: the virtual channel number of a DSI peripheral
+  - vdd3-supply: core voltage supply
+  - vci-supply: voltage supply for analog circuits
+  - reset-gpios: a GPIO spec for the reset pin
+  - display-timings: timings for the connected panel as described by [1]
+
+Optional properties:
+  - power-on-delay: delay after turning regulators on [ms]
+  - reset-delay: delay after reset sequence [ms]
+  - init-delay: delay after initialization sequence [ms]
+  - panel-width-mm: physical panel width [mm]
+  - panel-height-mm: physical panel height [mm]
+  - flip-horizontal: boolean to flip image horizontally
+  - flip-vertical: boolean to flip image vertically
+
+The device node can contain one 'port' child node with one child
+'endpoint' node, according to the bindings defined in [2]. This
+node should describe panel's video bus.
+
+[1]: Documentation/devicetree/bindings/video/display-timing.txt
+[2]: Documentation/devicetree/bindings/media/video-interfaces.txt
+
+Example:
+
+	panel {
+		compatible = "samsung,s6e8aa0";
+		reg = <0>;
+		vdd3-supply = <&vcclcd_reg>;
+		vci-supply = <&vlcd_reg>;
+		reset-gpios = <&gpy4 5 0>;
+		power-on-delay= <50>;
+		reset-delay = <100>;
+		init-delay = <100>;
+		panel-width-mm = <58>;
+		panel-height-mm = <103>;
+		flip-horizontal;
+		flip-vertical;
+
+		display-timings {
+			timing0: timing-0 {
+				clock-frequency = <57153600>;
+				hactive = <720>;
+				vactive = <1280>;
+				hfront-porch = <5>;
+				hback-porch = <5>;
+				hsync-len = <5>;
+				vfront-porch = <13>;
+				vback-porch = <1>;
+				vsync-len = <2>;
+			};
+		};
+	};

Documentation/devicetree/bindings/video/exynos_dp.txt

@@ -49,6 +49,8 @@ Required properties for dp-controller:
 	-samsung,lane-count:
 		number of lanes supported by the panel.
 			LANE_COUNT1 = 1, LANE_COUNT2 = 2, LANE_COUNT4 = 4
+	- display-timings: timings for the connected panel as described by
+		Documentation/devicetree/bindings/video/display-timing.txt
 
 Optional properties for dp-controller:
 	-interlaced:
@@ -84,4 +86,19 @@ Board Specific portion:
 		samsung,color-depth = <1>;
 		samsung,link-rate = <0x0a>;
 		samsung,lane-count = <4>;
+
+		display-timings {
+			native-mode = <&lcd_timing>;
+			lcd_timing: 1366x768 {
+				clock-frequency = <70589280>;
+				hactive = <1366>;
+				vactive = <768>;
+				hfront-porch = <40>;
+				hback-porch = <40>;
+				hsync-len = <32>;
+				vback-porch = <10>;
+				vfront-porch = <12>;
+				vsync-len = <6>;
+			};
+		};
 	};

Documentation/devicetree/bindings/video/exynos_dsim.txt

+Exynos MIPI DSI Master
+
+Required properties:
+  - compatible: "samsung,exynos4210-mipi-dsi"
+  - reg: physical base address and length of the registers set for the device
+  - interrupts: should contain DSI interrupt
+  - clocks: list of clock specifiers, must contain an entry for each required
+    entry in clock-names
+  - clock-names: should include "bus_clk"and "pll_clk" entries
+  - phys: list of phy specifiers, must contain an entry for each required
+    entry in phy-names
+  - phy-names: should include "dsim" entry
+  - vddcore-supply: MIPI DSIM Core voltage supply (e.g. 1.1V)
+  - vddio-supply: MIPI DSIM I/O and PLL voltage supply (e.g. 1.8V)
+  - samsung,pll-clock-frequency: specifies frequency of the "pll_clk" clock
+  - #address-cells, #size-cells: should be set respectively to <1> and <0>
+    according to DSI host bindings (see MIPI DSI bindings [1])
+
+Optional properties:
+  - samsung,power-domain: a phandle to DSIM power domain node
+
+Child nodes:
+  Should contain DSI peripheral nodes (see MIPI DSI bindings [1]).
+
+Video interfaces:
+  Device node can contain video interface port nodes according to [2].
+  The following are properties specific to those nodes:
+
+  port node:
+    - reg: (required) can be 0 for input RGB/I80 port or 1 for DSI port;
+
+  endpoint node of DSI port (reg = 1):
+    - samsung,burst-clock-frequency: specifies DSI frequency in high-speed burst
+      mode
+    - samsung,esc-clock-frequency: specifies DSI frequency in escape mode
+
+[1]: Documentation/devicetree/bindings/mipi/dsi/mipi-dsi-bus.txt
+[2]: Documentation/devicetree/bindings/media/video-interfaces.txt
+
+Example:
+
+	dsi@11C80000 {
+		compatible = "samsung,exynos4210-mipi-dsi";
+		reg = <0x11C80000 0x10000>;
+		interrupts = <0 79 0>;
+		clocks = <&clock 286>, <&clock 143>;
+		clock-names = "bus_clk", "pll_clk";
+		phys = <&mipi_phy 1>;
+		phy-names = "dsim";
+		vddcore-supply = <&vusb_reg>;
+		vddio-supply = <&vmipi_reg>;
+		samsung,power-domain = <&pd_lcd0>;
+		#address-cells = <1>;
+		#size-cells = <0>;
+		samsung,pll-clock-frequency = <24000000>;
+
+		panel@1 {
+			reg = <0>;
+			...
+			port {
+				panel_ep: endpoint {
+					remote-endpoint = <&dsi_ep>;
+				};
+			};
+		};
+
+		ports {
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			port@1 {
+				dsi_ep: endpoint {
+					reg = <0>;
+					samsung,burst-clock-frequency = <500000000>;
+					samsung,esc-clock-frequency = <20000000>;
+					remote-endpoint = <&panel_ep>;
+				};
+			};
+		};
+	};

Documentation/devicetree/bindings/video/exynos_hdmi.txt

@@ -25,6 +25,9 @@ Required properties:
 		sclk_pixel.
 - clock-names: aliases as per driver requirements for above clock IDs:
 	"hdmi", "sclk_hdmi", "sclk_pixel", "sclk_hdmiphy" and "mout_hdmi".
+- ddc: phandle to the hdmi ddc node
+- phy: phandle to the hdmi phy node
+
 Example:
 
 	hdmi {
@@ -32,4 +35,6 @@ Example:
 		reg = <0x14530000 0x100000>;
 		interrupts = <0 95 0>;
 		hpd-gpio = <&gpx3 7 1>;
+		ddc = <&hdmi_ddc_node>;
+		phy = <&hdmi_phy_node>;
 	};

Documentation/devicetree/bindings/video/samsung-fimd.txt

@@ -39,6 +39,23 @@ Required properties:
 
 Optional Properties:
 - samsung,power-domain: a phandle to FIMD power domain node.
+- samsung,invert-vden: video enable signal is inverted
+- samsung,invert-vclk: video clock signal is inverted
+- display-timings: timing settings for FIMD, as described in document [1].
+		Can be used in case timings cannot be provided otherwise
+		or to override timings provided by the panel.
+
+The device node can contain 'port' child nodes according to the bindings defined
+in [2]. The following are properties specific to those nodes:
+- reg: (required) port index, can be:
+		0 - for CAMIF0 input,
+		1 - for CAMIF1 input,
+		2 - for CAMIF2 input,
+		3 - for parallel output,
+		4 - for write-back interface
+
+[1]: Documentation/devicetree/bindings/video/display-timing.txt
+[2]: Documentation/devicetree/bindings/media/video-interfaces.txt
 
 Example:
 

MAINTAINERS

@@ -2945,6 +2945,16 @@ F:	drivers/gpu/drm/radeon/
 F:	include/drm/radeon*
 F:	include/uapi/drm/radeon*
 
+DRM PANEL DRIVERS
+M:	Thierry Reding <thierry.reding@gmail.com>
+L:	dri-devel@lists.freedesktop.org
+T:	git git://anongit.freedesktop.org/tegra/linux.git
+S:	Maintained
+F:	drivers/gpu/drm/drm_panel.c
+F:	drivers/gpu/drm/panel/
+F:	include/drm/drm_panel.h
+F:	Documentation/devicetree/bindings/panel/
+
 INTEL DRM DRIVERS (excluding Poulsbo, Moorestown and derivative chipsets)
 M:	Daniel Vetter <daniel.vetter@ffwll.ch>
 M:	Jani Nikula <jani.nikula@linux.intel.com>
@@ -3474,12 +3484,6 @@ S:	Maintained
 F:	drivers/extcon/
 F:	Documentation/extcon/
 
-EXYNOS DP DRIVER
-M:	Jingoo Han <jg1.han@samsung.com>
-L:	linux-fbdev@vger.kernel.org
-S:	Maintained
-F:	drivers/video/exynos/exynos_dp*
-
 EXYNOS MIPI DISPLAY DRIVERS
 M:	Inki Dae <inki.dae@samsung.com>
 M:	Donghwa Lee <dh09.lee@samsung.com>

arch/arm/boot/dts/exynos4.dtsi

@@ -110,6 +110,20 @@ sys_reg: syscon@10010000 {
 		reg = <0x10010000 0x400>;
 	};
 
+	dsi_0: dsi@11C80000 {
+		compatible = "samsung,exynos4210-mipi-dsi";
+		reg = <0x11C80000 0x10000>;
+		interrupts = <0 79 0>;
+		samsung,power-domain = <&pd_lcd0>;
+		phys = <&mipi_phy 1>;
+		phy-names = "dsim";
+		clocks = <&clock 286>, <&clock 143>;
+		clock-names = "bus_clk", "pll_clk";
+		status = "disabled";
+		#address-cells = <1>;
+		#size-cells = <0>;
+	};
+
 	camera {
 		compatible = "samsung,fimc", "simple-bus";
 		status = "disabled";

arch/arm/boot/dts/exynos4210-trats.dts

@@ -353,6 +353,67 @@ xusbxti {
 		};
 	};
 
+	dsi_0: dsi@11C80000 {
+		vddcore-supply = <&vusb_reg>;
+		vddio-supply = <&vmipi_reg>;
+		samsung,pll-clock-frequency = <24000000>;
+		status = "okay";
+
+		ports {
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			port@1 {
+				reg = <1>;
+
+				dsi_out: endpoint {
+					remote-endpoint = <&dsi_in>;
+					samsung,burst-clock-frequency = <500000000>;
+					samsung,esc-clock-frequency = <20000000>;
+				};
+			};
+		};
+
+		panel@0 {
+			reg = <0>;
+			compatible = "samsung,s6e8aa0";
+			vdd3-supply = <&vcclcd_reg>;
+			vci-supply = <&vlcd_reg>;
+			reset-gpios = <&gpy4 5 0>;
+			power-on-delay= <50>;
+			reset-delay = <100>;
+			init-delay = <100>;
+			flip-horizontal;
+			flip-vertical;
+			panel-width-mm = <58>;
+			panel-height-mm = <103>;
+
+			display-timings {
+				timing-0 {
+					clock-frequency = <57153600>;
+					hactive = <720>;
+					vactive = <1280>;
+					hfront-porch = <5>;
+					hback-porch = <5>;
+					hsync-len = <5>;
+					vfront-porch = <13>;
+					vback-porch = <1>;
+					vsync-len = <2>;
+				};
+			};
+
+			port {
+				dsi_in: endpoint {
+					remote-endpoint = <&dsi_out>;
+				};
+			};
+		};
+	};
+
+	fimd@11c00000 {
+		status = "okay";
+	};
+
 	camera {
 		pinctrl-names = "default";
 		pinctrl-0 = <>;

arch/arm/boot/dts/exynos4210-universal_c210.dts

@@ -345,6 +345,70 @@ safeout2_reg: ESAFEOUT2 {
 		};
 	};
 
+	spi-lcd {
+		compatible = "spi-gpio";
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		gpio-sck = <&gpy3 1 0>;
+		gpio-mosi = <&gpy3 3 0>;
+		num-chipselects = <1>;
+		cs-gpios = <&gpy4 3 0>;
+
+		lcd@0 {
+			compatible = "samsung,ld9040";
+			reg = <0>;
+			vdd3-supply = <&ldo7_reg>;
+			vci-supply = <&ldo17_reg>;
+			reset-gpios = <&gpy4 5 0>;
+			spi-max-frequency = <1200000>;
+			spi-cpol;
+			spi-cpha;
+			power-on-delay = <10>;
+			reset-delay = <10>;
+			panel-width-mm = <90>;
+			panel-height-mm = <154>;
+			display-timings {
+				timing {
+					clock-frequency = <23492370>;
+					hactive = <480>;
+					vactive = <800>;
+					hback-porch = <16>;
+					hfront-porch = <16>;
+					vback-porch = <2>;
+					vfront-porch = <28>;
+					hsync-len = <2>;
+					vsync-len = <1>;
+					hsync-active = <0>;
+					vsync-active = <0>;
+					de-active = <0>;
+					pixelclk-active = <0>;
+				};
+			};
+			port {
+				lcd_ep: endpoint {
+					remote-endpoint = <&fimd_dpi_ep>;
+				};
+			};
+		};
+	};
+
+	fimd: fimd@11c00000 {
+		pinctrl-0 = <&lcd_clk>, <&lcd_data24>;
+		pinctrl-names = "default";
+		status = "okay";
+		samsung,invert-vden;
+		samsung,invert-vclk;
+		#address-cells = <1>;
+		#size-cells = <0>;
+		port@3 {
+			reg = <3>;
+			fimd_dpi_ep: endpoint {
+				remote-endpoint = <&lcd_ep>;
+			};
+		};
+	};
+
 	pwm@139D0000 {
 		compatible = "samsung,s5p6440-pwm";
 		status = "okay";

arch/arm/boot/dts/exynos4412-trats2.dts

@@ -71,6 +71,15 @@ cam_io_reg: voltage-regulator-1 {
 			enable-active-high;
 		};
 
+		lcd_vdd3_reg: voltage-regulator-2 {
+			compatible = "regulator-fixed";
+			regulator-name = "LCD_VDD_2.2V";
+			regulator-min-microvolt = <2200000>;
+			regulator-max-microvolt = <2200000>;
+			gpio = <&gpc0 1 0>;
+			enable-active-high;
+		};
+
 		/* More to come */
 	};
 
@@ -516,6 +525,67 @@ controller-data {
 		};
 	};
 
+	dsi_0: dsi@11C80000 {
+		vddcore-supply = <&ldo8_reg>;
+		vddio-supply = <&ldo10_reg>;
+		samsung,pll-clock-frequency = <24000000>;
+		status = "okay";
+
+		ports {
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			port@1 {
+				reg = <1>;
+
+				dsi_out: endpoint {
+					remote-endpoint = <&dsi_in>;
+					samsung,burst-clock-frequency = <500000000>;
+					samsung,esc-clock-frequency = <20000000>;
+				};
+			};
+		};
+
+		panel@0 {
+			compatible = "samsung,s6e8aa0";
+			reg = <0>;
+			vdd3-supply = <&lcd_vdd3_reg>;
+			vci-supply = <&ldo25_reg>;
+			reset-gpios = <&gpy4 5 0>;
+			power-on-delay= <50>;
+			reset-delay = <100>;
+			init-delay = <100>;
+			flip-horizontal;
+			flip-vertical;
+			panel-width-mm = <58>;
+			panel-height-mm = <103>;
+
+			display-timings {
+				timing-0 {
+					clock-frequency = <0>;
+					hactive = <720>;
+					vactive = <1280>;
+					hfront-porch = <5>;
+					hback-porch = <5>;
+					hsync-len = <5>;
+					vfront-porch = <13>;
+					vback-porch = <1>;
+					vsync-len = <2>;
+				};
+			};
+
+			port {
+				dsi_in: endpoint {
+					remote-endpoint = <&dsi_out>;
+				};
+			};
+		};
+	};
+
+	fimd@11c00000 {
+		status = "okay";
+	};
+
 	camera {
 		pinctrl-0 = <&cam_port_b_clk_active>;
 		pinctrl-names = "default";

drivers/gpu/drm/Kconfig

@@ -199,3 +199,5 @@ source "drivers/gpu/drm/msm/Kconfig"
 source "drivers/gpu/drm/tegra/Kconfig"
 
 source "drivers/gpu/drm/panel/Kconfig"
+
+source "drivers/gpu/drm/bridge/Kconfig"

drivers/gpu/drm/Makefile

@@ -13,7 +13,8 @@ drm-y       :=	drm_auth.o drm_buffer.o drm_bufs.o drm_cache.o \
 		drm_crtc.o drm_modes.o drm_edid.o \
 		drm_info.o drm_debugfs.o drm_encoder_slave.o \
 		drm_trace_points.o drm_global.o drm_prime.o \
-		drm_rect.o drm_vma_manager.o drm_flip_work.o
+		drm_rect.o drm_vma_manager.o drm_flip_work.o \
+		drm_plane_helper.o
 
 drm-$(CONFIG_COMPAT) += drm_ioc32.o
 drm-$(CONFIG_DRM_GEM_CMA_HELPER) += drm_gem_cma_helper.o
@@ -63,3 +64,4 @@ obj-$(CONFIG_DRM_MSM) += msm/
 obj-$(CONFIG_DRM_TEGRA) += tegra/
 obj-y			+= i2c/
 obj-y			+= panel/
+obj-y			+= bridge/

drivers/gpu/drm/armada/armada_crtc.c

@@ -478,11 +478,12 @@ static int armada_drm_crtc_mode_set(struct drm_crtc *crtc,
 	unsigned i;
 	bool interlaced;
 
-	drm_framebuffer_reference(crtc->fb);
+	drm_framebuffer_reference(crtc->primary->fb);
 
 	interlaced = !!(adj->flags & DRM_MODE_FLAG_INTERLACE);
 
-	i = armada_drm_crtc_calc_fb(dcrtc->crtc.fb, x, y, regs, interlaced);
+	i = armada_drm_crtc_calc_fb(dcrtc->crtc.primary->fb,
+				    x, y, regs, interlaced);
 
 	rm = adj->crtc_hsync_start - adj->crtc_hdisplay;
 	lm = adj->crtc_htotal - adj->crtc_hsync_end;
@@ -567,10 +568,10 @@ static int armada_drm_crtc_mode_set(struct drm_crtc *crtc,
 	}
 
 	val = CFG_GRA_ENA | CFG_GRA_HSMOOTH;
-	val |= CFG_GRA_FMT(drm_fb_to_armada_fb(dcrtc->crtc.fb)->fmt);
-	val |= CFG_GRA_MOD(drm_fb_to_armada_fb(dcrtc->crtc.fb)->mod);
+	val |= CFG_GRA_FMT(drm_fb_to_armada_fb(dcrtc->crtc.primary->fb)->fmt);
+	val |= CFG_GRA_MOD(drm_fb_to_armada_fb(dcrtc->crtc.primary->fb)->mod);
 
-	if (drm_fb_to_armada_fb(dcrtc->crtc.fb)->fmt > CFG_420)
+	if (drm_fb_to_armada_fb(dcrtc->crtc.primary->fb)->fmt > CFG_420)
 		val |= CFG_PALETTE_ENA;
 
 	if (interlaced)
@@ -608,7 +609,7 @@ static int armada_drm_crtc_mode_set_base(struct drm_crtc *crtc, int x, int y,
 	struct armada_regs regs[4];
 	unsigned i;
 
-	i = armada_drm_crtc_calc_fb(crtc->fb, crtc->x, crtc->y, regs,
+	i = armada_drm_crtc_calc_fb(crtc->primary->fb, crtc->x, crtc->y, regs,
 				    dcrtc->interlaced);
 	armada_reg_queue_end(regs, i);
 
@@ -616,7 +617,7 @@ static int armada_drm_crtc_mode_set_base(struct drm_crtc *crtc, int x, int y,
 	wait_event(dcrtc->frame_wait, !dcrtc->frame_work);
 
 	/* Take a reference to the new fb as we're using it */
-	drm_framebuffer_reference(crtc->fb);
+	drm_framebuffer_reference(crtc->primary->fb);
 
 	/* Update the base in the CRTC */
 	armada_drm_crtc_update_regs(dcrtc, regs);
@@ -637,7 +638,7 @@ static void armada_drm_crtc_disable(struct drm_crtc *crtc)
 	struct armada_crtc *dcrtc = drm_to_armada_crtc(crtc);
 
 	armada_drm_crtc_dpms(crtc, DRM_MODE_DPMS_OFF);
-	armada_drm_crtc_finish_fb(dcrtc, crtc->fb, true);
+	armada_drm_crtc_finish_fb(dcrtc, crtc->primary->fb, true);
 
 	/* Power down most RAMs and FIFOs */
 	writel_relaxed(CFG_PDWN256x32 | CFG_PDWN256x24 | CFG_PDWN256x8 |
@@ -678,6 +679,7 @@ static void armada_load_cursor_argb(void __iomem *base, uint32_t *pix,
 				       base + LCD_SPU_SRAM_WRDAT);
 			writel_relaxed(addr | SRAM_WRITE,
 				       base + LCD_SPU_SRAM_CTRL);
+			readl_relaxed(base + LCD_SPU_HWC_OVSA_HPXL_VLN);
 			addr += 1;
 			if ((addr & 0x00ff) == 0)
 				addr += 0xf00;
@@ -904,7 +906,7 @@ static int armada_drm_crtc_page_flip(struct drm_crtc *crtc,
 	int ret;
 
 	/* We don't support changing the pixel format */
-	if (fb->pixel_format != crtc->fb->pixel_format)
+	if (fb->pixel_format != crtc->primary->fb->pixel_format)
 		return -EINVAL;
 
 	work = kmalloc(sizeof(*work), GFP_KERNEL);
@@ -912,7 +914,7 @@ static int armada_drm_crtc_page_flip(struct drm_crtc *crtc,
 		return -ENOMEM;
 
 	work->event = event;
-	work->old_fb = dcrtc->crtc.fb;
+	work->old_fb = dcrtc->crtc.primary->fb;
 
 	i = armada_drm_crtc_calc_fb(fb, crtc->x, crtc->y, work->regs,
 				    dcrtc->interlaced);
@@ -941,7 +943,7 @@ static int armada_drm_crtc_page_flip(struct drm_crtc *crtc,
 	 * will _not_ drop that reference on successful return from this
 	 * function.  Simply mark this new framebuffer as the current one.
 	 */
-	dcrtc->crtc.fb = fb;
+	dcrtc->crtc.primary->fb = fb;
 
 	/*
 	 * Finally, if the display is blanked, we won't receive an

drivers/gpu/drm/ast/ast_mode.c

@@ -81,7 +81,7 @@ static bool ast_get_vbios_mode_info(struct drm_crtc *crtc, struct drm_display_mo
 	u32 refresh_rate_index = 0, mode_id, color_index, refresh_rate;
 	u32 hborder, vborder;
 
-	switch (crtc->fb->bits_per_pixel) {
+	switch (crtc->primary->fb->bits_per_pixel) {
 	case 8:
 		vbios_mode->std_table = &vbios_stdtable[VGAModeIndex];
 		color_index = VGAModeIndex - 1;
@@ -176,7 +176,7 @@ static bool ast_get_vbios_mode_info(struct drm_crtc *crtc, struct drm_display_mo
 		ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0x8e, mode_id & 0xff);
 
 		ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0x91, 0xa8);
-		ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0x92, crtc->fb->bits_per_pixel);
+		ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0x92, crtc->primary->fb->bits_per_pixel);
 		ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0x93, adjusted_mode->clock / 1000);
 		ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0x94, adjusted_mode->crtc_hdisplay);
 		ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0x95, adjusted_mode->crtc_hdisplay >> 8);
@@ -340,7 +340,7 @@ static void ast_set_offset_reg(struct drm_crtc *crtc)
 
 	u16 offset;
 
-	offset = crtc->fb->pitches[0] >> 3;
+	offset = crtc->primary->fb->pitches[0] >> 3;
 	ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0x13, (offset & 0xff));
 	ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0xb0, (offset >> 8) & 0x3f);
 }
@@ -365,7 +365,7 @@ static void ast_set_ext_reg(struct drm_crtc *crtc, struct drm_display_mode *mode
 	struct ast_private *ast = crtc->dev->dev_private;
 	u8 jregA0 = 0, jregA3 = 0, jregA8 = 0;
 
-	switch (crtc->fb->bits_per_pixel) {
+	switch (crtc->primary->fb->bits_per_pixel) {
 	case 8:
 		jregA0 = 0x70;
 		jregA3 = 0x01;
@@ -418,7 +418,7 @@ static void ast_set_sync_reg(struct drm_device *dev, struct drm_display_mode *mo
 static bool ast_set_dac_reg(struct drm_crtc *crtc, struct drm_display_mode *mode,
 		     struct ast_vbios_mode_info *vbios_mode)
 {
-	switch (crtc->fb->bits_per_pixel) {
+	switch (crtc->primary->fb->bits_per_pixel) {
 	case 8:
 		break;
 	default:
@@ -490,7 +490,7 @@ static int ast_crtc_do_set_base(struct drm_crtc *crtc,
 		ast_bo_unreserve(bo);
 	}
 
-	ast_fb = to_ast_framebuffer(crtc->fb);
+	ast_fb = to_ast_framebuffer(crtc->primary->fb);
 	obj = ast_fb->obj;
 	bo = gem_to_ast_bo(obj);
 

drivers/gpu/drm/ast/ast_ttm.c

@@ -259,7 +259,9 @@ int ast_mm_init(struct ast_private *ast)
 
 	ret = ttm_bo_device_init(&ast->ttm.bdev,
 				 ast->ttm.bo_global_ref.ref.object,
-				 &ast_bo_driver, DRM_FILE_PAGE_OFFSET,
+				 &ast_bo_driver,
+				 dev->anon_inode->i_mapping,
+				 DRM_FILE_PAGE_OFFSET,
 				 true);
 	if (ret) {
 		DRM_ERROR("Error initialising bo driver; %d\n", ret);
@@ -324,7 +326,6 @@ int ast_bo_create(struct drm_device *dev, int size, int align,
 	}
 
 	astbo->bo.bdev = &ast->ttm.bdev;
-	astbo->bo.bdev->dev_mapping = dev->dev_mapping;
 
 	ast_ttm_placement(astbo, TTM_PL_FLAG_VRAM | TTM_PL_FLAG_SYSTEM);
 

drivers/gpu/drm/bochs/bochs_kms.c

@@ -62,10 +62,10 @@ static int bochs_crtc_mode_set_base(struct drm_crtc *crtc, int x, int y,
 		}
 	}
 
-	if (WARN_ON(crtc->fb == NULL))
+	if (WARN_ON(crtc->primary->fb == NULL))
 		return -EINVAL;
 
-	bochs_fb = to_bochs_framebuffer(crtc->fb);
+	bochs_fb = to_bochs_framebuffer(crtc->primary->fb);
 	bo = gem_to_bochs_bo(bochs_fb->obj);
 	ret = ttm_bo_reserve(&bo->bo, true, false, false, 0);
 	if (ret)

drivers/gpu/drm/bochs/bochs_mm.c

@@ -225,7 +225,9 @@ int bochs_mm_init(struct bochs_device *bochs)
 
 	ret = ttm_bo_device_init(&bochs->ttm.bdev,
 				 bochs->ttm.bo_global_ref.ref.object,
-				 &bochs_bo_driver, DRM_FILE_PAGE_OFFSET,
+				 &bochs_bo_driver,
+				 bochs->dev->anon_inode->i_mapping,
+				 DRM_FILE_PAGE_OFFSET,
 				 true);
 	if (ret) {
 		DRM_ERROR("Error initialising bo driver; %d\n", ret);
@@ -359,7 +361,7 @@ static int bochs_bo_create(struct drm_device *dev, int size, int align,
 	}
 
 	bochsbo->bo.bdev = &bochs->ttm.bdev;
-	bochsbo->bo.bdev->dev_mapping = dev->dev_mapping;
+	bochsbo->bo.bdev->dev_mapping = dev->anon_inode->i_mapping;
 
 	bochs_ttm_placement(bochsbo, TTM_PL_FLAG_VRAM | TTM_PL_FLAG_SYSTEM);
 

drivers/gpu/drm/bridge/Kconfig

+config DRM_PTN3460
+	tristate "PTN3460 DP/LVDS bridge"
+	depends on DRM
+	select DRM_KMS_HELPER
+	---help---

drivers/gpu/drm/bridge/Makefile

+ccflags-y := -Iinclude/drm
+
+obj-$(CONFIG_DRM_PTN3460) += ptn3460.o

drivers/gpu/drm/bridge/ptn3460.c

+/*
+ * NXP PTN3460 DP/LVDS bridge driver
+ *
+ * Copyright (C) 2013 Google, Inc.
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/of_gpio.h>
+#include <linux/i2c.h>
+#include <linux/gpio.h>
+#include <linux/delay.h>
+
+#include "drmP.h"
+#include "drm_edid.h"
+#include "drm_crtc.h"
+#include "drm_crtc_helper.h"
+
+#include "bridge/ptn3460.h"
+
+#define PTN3460_EDID_ADDR			0x0
+#define PTN3460_EDID_EMULATION_ADDR		0x84
+#define PTN3460_EDID_ENABLE_EMULATION		0
+#define PTN3460_EDID_EMULATION_SELECTION	1
+#define PTN3460_EDID_SRAM_LOAD_ADDR		0x85
+
+struct ptn3460_bridge {
+	struct drm_connector connector;
+	struct i2c_client *client;
+	struct drm_encoder *encoder;
+	struct drm_bridge *bridge;
+	struct edid *edid;
+	int gpio_pd_n;
+	int gpio_rst_n;
+	u32 edid_emulation;
+	bool enabled;
+};
+
+static int ptn3460_read_bytes(struct ptn3460_bridge *ptn_bridge, char addr,
+		u8 *buf, int len)
+{
+	int ret;
+
+	ret = i2c_master_send(ptn_bridge->client, &addr, 1);
+	if (ret <= 0) {
+		DRM_ERROR("Failed to send i2c command, ret=%d\n", ret);
+		return ret;
+	}
+
+	ret = i2c_master_recv(ptn_bridge->client, buf, len);
+	if (ret <= 0) {
+		DRM_ERROR("Failed to recv i2c data, ret=%d\n", ret);
+		return ret;
+	}
+
+	return 0;
+}
+
+static int ptn3460_write_byte(struct ptn3460_bridge *ptn_bridge, char addr,
+		char val)
+{
+	int ret;
+	char buf[2];
+
+	buf[0] = addr;
+	buf[1] = val;
+
+	ret = i2c_master_send(ptn_bridge->client, buf, ARRAY_SIZE(buf));
+	if (ret <= 0) {
+		DRM_ERROR("Failed to send i2c command, ret=%d\n", ret);
+		return ret;
+	}
+
+	return 0;
+}
+
+static int ptn3460_select_edid(struct ptn3460_bridge *ptn_bridge)
+{
+	int ret;
+	char val;
+
+	/* Load the selected edid into SRAM (accessed at PTN3460_EDID_ADDR) */
+	ret = ptn3460_write_byte(ptn_bridge, PTN3460_EDID_SRAM_LOAD_ADDR,
+			ptn_bridge->edid_emulation);
+	if (ret) {
+		DRM_ERROR("Failed to transfer edid to sram, ret=%d\n", ret);
+		return ret;
+	}
+
+	/* Enable EDID emulation and select the desired EDID */
+	val = 1 << PTN3460_EDID_ENABLE_EMULATION |
+		ptn_bridge->edid_emulation << PTN3460_EDID_EMULATION_SELECTION;
+
+	ret = ptn3460_write_byte(ptn_bridge, PTN3460_EDID_EMULATION_ADDR, val);
+	if (ret) {
+		DRM_ERROR("Failed to write edid value, ret=%d\n", ret);
+		return ret;
+	}
+
+	return 0;
+}
+
+static void ptn3460_pre_enable(struct drm_bridge *bridge)
+{
+	struct ptn3460_bridge *ptn_bridge = bridge->driver_private;
+	int ret;
+
+	if (ptn_bridge->enabled)
+		return;
+
+	if (gpio_is_valid(ptn_bridge->gpio_pd_n))
+		gpio_set_value(ptn_bridge->gpio_pd_n, 1);
+
+	if (gpio_is_valid(ptn_bridge->gpio_rst_n)) {
+		gpio_set_value(ptn_bridge->gpio_rst_n, 0);
+		udelay(10);
+		gpio_set_value(ptn_bridge->gpio_rst_n, 1);
+	}
+
+	/*
+	 * There's a bug in the PTN chip where it falsely asserts hotplug before
+	 * it is fully functional. We're forced to wait for the maximum start up
+	 * time specified in the chip's datasheet to make sure we're really up.
+	 */
+	msleep(90);
+
+	ret = ptn3460_select_edid(ptn_bridge);
+	if (ret)
+		DRM_ERROR("Select edid failed ret=%d\n", ret);
+
+	ptn_bridge->enabled = true;
+}
+
+static void ptn3460_enable(struct drm_bridge *bridge)
+{
+}
+
+static void ptn3460_disable(struct drm_bridge *bridge)
+{
+	struct ptn3460_bridge *ptn_bridge = bridge->driver_private;
+
+	if (!ptn_bridge->enabled)
+		return;
+
+	ptn_bridge->enabled = false;
+
+	if (gpio_is_valid(ptn_bridge->gpio_rst_n))
+		gpio_set_value(ptn_bridge->gpio_rst_n, 1);
+
+	if (gpio_is_valid(ptn_bridge->gpio_pd_n))
+		gpio_set_value(ptn_bridge->gpio_pd_n, 0);
+}
+
+static void ptn3460_post_disable(struct drm_bridge *bridge)
+{
+}
+
+void ptn3460_bridge_destroy(struct drm_bridge *bridge)
+{
+	struct ptn3460_bridge *ptn_bridge = bridge->driver_private;
+
+	drm_bridge_cleanup(bridge);
+	if (gpio_is_valid(ptn_bridge->gpio_pd_n))
+		gpio_free(ptn_bridge->gpio_pd_n);
+	if (gpio_is_valid(ptn_bridge->gpio_rst_n))
+		gpio_free(ptn_bridge->gpio_rst_n);
+	/* Nothing else to free, we've got devm allocated memory */
+}
+
+struct drm_bridge_funcs ptn3460_bridge_funcs = {
+	.pre_enable = ptn3460_pre_enable,
+	.enable = ptn3460_enable,
+	.disable = ptn3460_disable,
+	.post_disable = ptn3460_post_disable,
+	.destroy = ptn3460_bridge_destroy,
+};
+
+int ptn3460_get_modes(struct drm_connector *connector)
+{
+	struct ptn3460_bridge *ptn_bridge;
+	u8 *edid;
+	int ret, num_modes;
+	bool power_off;
+
+	ptn_bridge = container_of(connector, struct ptn3460_bridge, connector);
+
+	if (ptn_bridge->edid)
+		return drm_add_edid_modes(connector, ptn_bridge->edid);
+
+	power_off = !ptn_bridge->enabled;
+	ptn3460_pre_enable(ptn_bridge->bridge);
+
+	edid = kmalloc(EDID_LENGTH, GFP_KERNEL);
+	if (!edid) {
+		DRM_ERROR("Failed to allocate edid\n");
+		return 0;
+	}
+
+	ret = ptn3460_read_bytes(ptn_bridge, PTN3460_EDID_ADDR, edid,
+			EDID_LENGTH);
+	if (ret) {
+		kfree(edid);
+		num_modes = 0;
+		goto out;
+	}
+
+	ptn_bridge->edid = (struct edid *)edid;
+	drm_mode_connector_update_edid_property(connector, ptn_bridge->edid);
+
+	num_modes = drm_add_edid_modes(connector, ptn_bridge->edid);
+
+out:
+	if (power_off)
+		ptn3460_disable(ptn_bridge->bridge);
+
+	return num_modes;
+}
+
+static int ptn3460_mode_valid(struct drm_connector *connector,
+		struct drm_display_mode *mode)
+{
+	return MODE_OK;
+}
+
+struct drm_encoder *ptn3460_best_encoder(struct drm_connector *connector)
+{
+	struct ptn3460_bridge *ptn_bridge;
+
+	ptn_bridge = container_of(connector, struct ptn3460_bridge, connector);
+
+	return ptn_bridge->encoder;
+}
+
+struct drm_connector_helper_funcs ptn3460_connector_helper_funcs = {
+	.get_modes = ptn3460_get_modes,
+	.mode_valid = ptn3460_mode_valid,
+	.best_encoder = ptn3460_best_encoder,
+};
+
+enum drm_connector_status ptn3460_detect(struct drm_connector *connector,
+		bool force)
+{
+	return connector_status_connected;
+}
+
+void ptn3460_connector_destroy(struct drm_connector *connector)
+{
+	drm_connector_cleanup(connector);
+}
+
+struct drm_connector_funcs ptn3460_connector_funcs = {
+	.dpms = drm_helper_connector_dpms,
+	.fill_modes = drm_helper_probe_single_connector_modes,
+	.detect = ptn3460_detect,
+	.destroy = ptn3460_connector_destroy,
+};
+
+int ptn3460_init(struct drm_device *dev, struct drm_encoder *encoder,
+		struct i2c_client *client, struct device_node *node)
+{
+	int ret;
+	struct drm_bridge *bridge;
+	struct ptn3460_bridge *ptn_bridge;
+
+	bridge = devm_kzalloc(dev->dev, sizeof(*bridge), GFP_KERNEL);
+	if (!bridge) {
+		DRM_ERROR("Failed to allocate drm bridge\n");
+		return -ENOMEM;
+	}
+
+	ptn_bridge = devm_kzalloc(dev->dev, sizeof(*ptn_bridge), GFP_KERNEL);
+	if (!ptn_bridge) {
+		DRM_ERROR("Failed to allocate ptn bridge\n");
+		return -ENOMEM;
+	}
+
+	ptn_bridge->client = client;
+	ptn_bridge->encoder = encoder;
+	ptn_bridge->bridge = bridge;
+	ptn_bridge->gpio_pd_n = of_get_named_gpio(node, "powerdown-gpio", 0);
+	if (gpio_is_valid(ptn_bridge->gpio_pd_n)) {
+		ret = gpio_request_one(ptn_bridge->gpio_pd_n,
+				GPIOF_OUT_INIT_HIGH, "PTN3460_PD_N");
+		if (ret) {
+			DRM_ERROR("Request powerdown-gpio failed (%d)\n", ret);
+			return ret;
+		}
+	}
+
+	ptn_bridge->gpio_rst_n = of_get_named_gpio(node, "reset-gpio", 0);
+	if (gpio_is_valid(ptn_bridge->gpio_rst_n)) {
+		/*
+		 * Request the reset pin low to avoid the bridge being
+		 * initialized prematurely
+		 */
+		ret = gpio_request_one(ptn_bridge->gpio_rst_n,
+				GPIOF_OUT_INIT_LOW, "PTN3460_RST_N");
+		if (ret) {
+			DRM_ERROR("Request reset-gpio failed (%d)\n", ret);
+			gpio_free(ptn_bridge->gpio_pd_n);
+			return ret;
+		}
+	}
+
+	ret = of_property_read_u32(node, "edid-emulation",
+			&ptn_bridge->edid_emulation);
+	if (ret) {
+		DRM_ERROR("Can't read edid emulation value\n");
+		goto err;
+	}
+
+	ret = drm_bridge_init(dev, bridge, &ptn3460_bridge_funcs);
+	if (ret) {
+		DRM_ERROR("Failed to initialize bridge with drm\n");
+		goto err;
+	}
+
+	bridge->driver_private = ptn_bridge;
+	encoder->bridge = bridge;
+
+	ret = drm_connector_init(dev, &ptn_bridge->connector,
+			&ptn3460_connector_funcs, DRM_MODE_CONNECTOR_LVDS);
+	if (ret) {
+		DRM_ERROR("Failed to initialize connector with drm\n");
+		goto err;
+	}
+	drm_connector_helper_add(&ptn_bridge->connector,
+			&ptn3460_connector_helper_funcs);
+	drm_sysfs_connector_add(&ptn_bridge->connector);
+	drm_mode_connector_attach_encoder(&ptn_bridge->connector, encoder);
+
+	return 0;
+
+err:
+	if (gpio_is_valid(ptn_bridge->gpio_pd_n))
+		gpio_free(ptn_bridge->gpio_pd_n);
+	if (gpio_is_valid(ptn_bridge->gpio_rst_n))
+		gpio_free(ptn_bridge->gpio_rst_n);
+	return ret;
+}
+EXPORT_SYMBOL(ptn3460_init);

drivers/gpu/drm/cirrus/cirrus_mode.c

@@ -149,7 +149,7 @@ static int cirrus_crtc_do_set_base(struct drm_crtc *crtc,
 		cirrus_bo_unreserve(bo);
 	}
 
-	cirrus_fb = to_cirrus_framebuffer(crtc->fb);
+	cirrus_fb = to_cirrus_framebuffer(crtc->primary->fb);
 	obj = cirrus_fb->obj;
 	bo = gem_to_cirrus_bo(obj);
 
@@ -268,7 +268,7 @@ static int cirrus_crtc_mode_set(struct drm_crtc *crtc,
 	sr07 = RREG8(SEQ_DATA);
 	sr07 &= 0xe0;
 	hdr = 0;
-	switch (crtc->fb->bits_per_pixel) {
+	switch (crtc->primary->fb->bits_per_pixel) {
 	case 8:
 		sr07 |= 0x11;
 		break;
@@ -291,13 +291,13 @@ static int cirrus_crtc_mode_set(struct drm_crtc *crtc,
 	WREG_SEQ(0x7, sr07);
 
 	/* Program the pitch */
-	tmp = crtc->fb->pitches[0] / 8;
+	tmp = crtc->primary->fb->pitches[0] / 8;
 	WREG_CRT(VGA_CRTC_OFFSET, tmp);
 
 	/* Enable extended blanking and pitch bits, and enable full memory */
 	tmp = 0x22;
-	tmp |= (crtc->fb->pitches[0] >> 7) & 0x10;
-	tmp |= (crtc->fb->pitches[0] >> 6) & 0x40;
+	tmp |= (crtc->primary->fb->pitches[0] >> 7) & 0x10;
+	tmp |= (crtc->primary->fb->pitches[0] >> 6) & 0x40;
 	WREG_CRT(0x1b, tmp);
 
 	/* Enable high-colour modes */

drivers/gpu/drm/cirrus/cirrus_ttm.c

@@ -259,7 +259,9 @@ int cirrus_mm_init(struct cirrus_device *cirrus)
 
 	ret = ttm_bo_device_init(&cirrus->ttm.bdev,
 				 cirrus->ttm.bo_global_ref.ref.object,
-				 &cirrus_bo_driver, DRM_FILE_PAGE_OFFSET,
+				 &cirrus_bo_driver,
+				 dev->anon_inode->i_mapping,
+				 DRM_FILE_PAGE_OFFSET,
 				 true);
 	if (ret) {
 		DRM_ERROR("Error initialising bo driver; %d\n", ret);
@@ -329,7 +331,6 @@ int cirrus_bo_create(struct drm_device *dev, int size, int align,
 	}
 
 	cirrusbo->bo.bdev = &cirrus->ttm.bdev;
-	cirrusbo->bo.bdev->dev_mapping = dev->dev_mapping;
 
 	cirrus_ttm_placement(cirrusbo, TTM_PL_FLAG_VRAM | TTM_PL_FLAG_SYSTEM);
 

drivers/gpu/drm/drm_crtc_internal.h

+/*
+ * Copyright © 2006 Keith Packard
+ * Copyright © 2007-2008 Dave Airlie
+ * Copyright © 2007-2008 Intel Corporation
+ *   Jesse Barnes <jesse.barnes@intel.com>
+ * Copyright © 2014 Intel Corporation
+ *   Daniel Vetter <daniel.vetter@ffwll.ch>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+/*
+ * This header file contains mode setting related functions and definitions
+ * which are only used within the drm module as internal implementation details
+ * and are not exported to drivers.
+ */
+
+int drm_mode_object_get(struct drm_device *dev,
+			struct drm_mode_object *obj, uint32_t obj_type);
+void drm_mode_object_put(struct drm_device *dev,
+			 struct drm_mode_object *object);
+

drivers/gpu/drm/drm_drv.c

@@ -285,6 +285,45 @@ static int drm_version(struct drm_device *dev, void *data,
 	return err;
 }
 
+/**
+ * drm_ioctl_permit - Check ioctl permissions against caller
+ *
+ * @flags: ioctl permission flags.
+ * @file_priv: Pointer to struct drm_file identifying the caller.
+ *
+ * Checks whether the caller is allowed to run an ioctl with the
+ * indicated permissions. If so, returns zero. Otherwise returns an
+ * error code suitable for ioctl return.
+ */
+static int drm_ioctl_permit(u32 flags, struct drm_file *file_priv)
+{
+	/* ROOT_ONLY is only for CAP_SYS_ADMIN */
+	if (unlikely((flags & DRM_ROOT_ONLY) && !capable(CAP_SYS_ADMIN)))
+		return -EACCES;
+
+	/* AUTH is only for authenticated or render client */
+	if (unlikely((flags & DRM_AUTH) && !drm_is_render_client(file_priv) &&
+		     !file_priv->authenticated))
+		return -EACCES;
+
+	/* MASTER is only for master or control clients */
+	if (unlikely((flags & DRM_MASTER) && !file_priv->is_master &&
+		     !drm_is_control_client(file_priv)))
+		return -EACCES;
+
+	/* Control clients must be explicitly allowed */
+	if (unlikely(!(flags & DRM_CONTROL_ALLOW) &&
+		     drm_is_control_client(file_priv)))
+		return -EACCES;
+
+	/* Render clients must be explicitly allowed */
+	if (unlikely(!(flags & DRM_RENDER_ALLOW) &&
+		     drm_is_render_client(file_priv)))
+		return -EACCES;
+
+	return 0;
+}
+
 /**
  * Called whenever a process performs an ioctl on /dev/drm.
  *
@@ -344,22 +383,22 @@ long drm_ioctl(struct file *filp,
 
 	DRM_DEBUG("pid=%d, dev=0x%lx, auth=%d, %s\n",
 		  task_pid_nr(current),
-		  (long)old_encode_dev(file_priv->minor->device),
+		  (long)old_encode_dev(file_priv->minor->kdev->devt),
 		  file_priv->authenticated, ioctl->name);
 
 	/* Do not trust userspace, use our own definition */
 	func = ioctl->func;
 
-	if (!func) {
+	if (unlikely(!func)) {
 		DRM_DEBUG("no function\n");
 		retcode = -EINVAL;
-	} else if (((ioctl->flags & DRM_ROOT_ONLY) && !capable(CAP_SYS_ADMIN)) ||
-		   ((ioctl->flags & DRM_AUTH) && !drm_is_render_client(file_priv) && !file_priv->authenticated) ||
-		   ((ioctl->flags & DRM_MASTER) && !file_priv->is_master) ||
-		   (!(ioctl->flags & DRM_CONTROL_ALLOW) && (file_priv->minor->type == DRM_MINOR_CONTROL)) ||
-		   (!(ioctl->flags & DRM_RENDER_ALLOW) && drm_is_render_client(file_priv))) {
-		retcode = -EACCES;
-	} else {
+		goto err_i1;
+	}
+
+	retcode = drm_ioctl_permit(ioctl->flags, file_priv);
+	if (unlikely(retcode))
+		goto err_i1;
+
 	if (cmd & (IOC_IN | IOC_OUT)) {
 		if (asize <= sizeof(stack_kdata)) {
 			kdata = stack_kdata;
@@ -396,13 +435,12 @@ long drm_ioctl(struct file *filp,
 				 usize) != 0)
 			retcode = -EFAULT;
 	}
-	}
 
       err_i1:
 	if (!ioctl)
 		DRM_DEBUG("invalid ioctl: pid=%d, dev=0x%lx, auth=%d, cmd=0x%02x, nr=0x%02x\n",
 			  task_pid_nr(current),
-			  (long)old_encode_dev(file_priv->minor->device),
+			  (long)old_encode_dev(file_priv->minor->kdev->devt),
 			  file_priv->authenticated, cmd, nr);
 
 	if (kdata != stack_kdata)
@@ -412,3 +450,21 @@ long drm_ioctl(struct file *filp,
 	return retcode;
 }
 EXPORT_SYMBOL(drm_ioctl);
+
+/**
+ * drm_ioctl_flags - Check for core ioctl and return ioctl permission flags
+ *
+ * @nr: Ioctl number.
+ * @flags: Where to return the ioctl permission flags
+ */
+bool drm_ioctl_flags(unsigned int nr, unsigned int *flags)
+{
+	if ((nr >= DRM_COMMAND_END && nr < DRM_CORE_IOCTL_COUNT) ||
+	    (nr < DRM_COMMAND_BASE)) {
+		*flags = drm_ioctls[nr].flags;
+		return true;
+	}
+
+	return false;
+}
+EXPORT_SYMBOL(drm_ioctl_flags);

drivers/gpu/drm/drm_edid.c

@@ -1098,10 +1098,14 @@ EXPORT_SYMBOL(drm_edid_is_valid);
 /**
  * Get EDID information via I2C.
  *
- * \param adapter : i2c device adaptor
- * \param buf     : EDID data buffer to be filled
- * \param len     : EDID data buffer length
- * \return 0 on success or -1 on failure.
+ * @adapter : i2c device adaptor
+ * @buf: EDID data buffer to be filled
+ * @block: 128 byte EDID block to start fetching from
+ * @len: EDID data buffer length to fetch
+ *
+ * Returns:
+ *
+ * 0 on success or -1 on failure.
  *
  * Try to fetch EDID information by calling i2c driver function.
  */
@@ -1243,9 +1247,11 @@ drm_do_get_edid(struct drm_connector *connector, struct i2c_adapter *adapter)
 
 /**
  * Probe DDC presence.
+ * @adapter: i2c adapter to probe
+ *
+ * Returns:
  *
- * \param adapter : i2c device adaptor
- * \return 1 on success
+ * 1 on success
  */
 bool
 drm_probe_ddc(struct i2c_adapter *adapter)
@@ -1586,8 +1592,10 @@ bad_std_timing(u8 a, u8 b)
 
 /**
  * drm_mode_std - convert standard mode info (width, height, refresh) into mode
+ * @connector: connector of for the EDID block
+ * @edid: EDID block to scan
  * @t: standard timing params
- * @timing_level: standard timing level
+ * @revision: standard timing level
  *
  * Take the standard timing params (in this case width, aspect, and refresh)
  * and convert them into a real mode using CVT/GTF/DMT.
@@ -2132,6 +2140,7 @@ do_established_modes(struct detailed_timing *timing, void *c)
 
 /**
  * add_established_modes - get est. modes from EDID and add them
+ * @connector: connector of for the EDID block
  * @edid: EDID block to scan
  *
  * Each EDID block contains a bitmap of the supported "established modes" list
@@ -2194,6 +2203,7 @@ do_standard_modes(struct detailed_timing *timing, void *c)
 
 /**
  * add_standard_modes - get std. modes from EDID and add them
+ * @connector: connector of for the EDID block
  * @edid: EDID block to scan
  *
  * Standard modes can be calculated using the appropriate standard (DMT,
@@ -2580,6 +2590,9 @@ drm_display_mode_from_vic_index(struct drm_connector *connector,
 		return NULL;
 
 	newmode = drm_mode_duplicate(dev, &edid_cea_modes[cea_mode]);
+	if (!newmode)
+		return NULL;
+
 	newmode->vrefresh = 0;
 
 	return newmode;
@@ -3300,6 +3313,7 @@ EXPORT_SYMBOL(drm_detect_hdmi_monitor);
 
 /**
  * drm_detect_monitor_audio - check monitor audio capability
+ * @edid: EDID block to scan
  *
  * Monitor should have CEA extension block.
  * If monitor has 'basic audio', but no CEA audio blocks, it's 'basic
@@ -3345,6 +3359,7 @@ EXPORT_SYMBOL(drm_detect_monitor_audio);
 
 /**
  * drm_rgb_quant_range_selectable - is RGB quantization range selectable?
+ * @edid: EDID block to scan
  *
  * Check whether the monitor reports the RGB quantization range selection
  * as supported. The AVI infoframe can then be used to inform the monitor
@@ -3564,8 +3579,8 @@ void drm_set_preferred_mode(struct drm_connector *connector,
 	struct drm_display_mode *mode;
 
 	list_for_each_entry(mode, &connector->probed_modes, head) {
-		if (drm_mode_width(mode)  == hpref &&
-		    drm_mode_height(mode) == vpref)
+		if (mode->hdisplay  == hpref &&
+		    mode->vdisplay == vpref)
 			mode->type |= DRM_MODE_TYPE_PREFERRED;
 	}
 }
@@ -3599,6 +3614,7 @@ drm_hdmi_avi_infoframe_from_display_mode(struct hdmi_avi_infoframe *frame,
 
 	frame->picture_aspect = HDMI_PICTURE_ASPECT_NONE;
 	frame->active_aspect = HDMI_ACTIVE_ASPECT_PICTURE;
+	frame->scan_mode = HDMI_SCAN_MODE_UNDERSCAN;
 
 	return 0;
 }

drivers/gpu/drm/drm_fb_helper.c

@@ -232,7 +232,7 @@ static struct drm_framebuffer *drm_mode_config_fb(struct drm_crtc *crtc)
 
 	list_for_each_entry(c, &dev->mode_config.crtc_list, head) {
 		if (crtc->base.id == c->base.id)
-			return c->fb;
+			return c->primary->fb;
 	}
 
 	return NULL;
@@ -291,6 +291,7 @@ bool drm_fb_helper_restore_fbdev_mode(struct drm_fb_helper *fb_helper)
 	drm_warn_on_modeset_not_all_locked(dev);
 
 	list_for_each_entry(plane, &dev->mode_config.plane_list, head)
+		if (plane->type != DRM_PLANE_TYPE_PRIMARY)
 			drm_plane_force_disable(plane);
 
 	for (i = 0; i < fb_helper->crtc_count; i++) {
@@ -365,9 +366,9 @@ static bool drm_fb_helper_is_bound(struct drm_fb_helper *fb_helper)
 		return false;
 
 	list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
-		if (crtc->fb)
+		if (crtc->primary->fb)
 			crtcs_bound++;
-		if (crtc->fb == fb_helper->fb)
+		if (crtc->primary->fb == fb_helper->fb)
 			bound++;
 	}
 
@@ -516,6 +517,9 @@ int drm_fb_helper_init(struct drm_device *dev,
 	struct drm_crtc *crtc;
 	int i;
 
+	if (!max_conn_count)
+		return -EINVAL;
+
 	fb_helper->dev = dev;
 
 	INIT_LIST_HEAD(&fb_helper->kernel_fb_list);
@@ -809,8 +813,6 @@ int drm_fb_helper_set_par(struct fb_info *info)
 	struct drm_fb_helper *fb_helper = info->par;
 	struct drm_device *dev = fb_helper->dev;
 	struct fb_var_screeninfo *var = &info->var;
-	int ret;
-	int i;
 
 	if (var->pixclock != 0) {
 		DRM_ERROR("PIXEL CLOCK SET\n");
@@ -818,13 +820,7 @@ int drm_fb_helper_set_par(struct fb_info *info)
 	}
 
 	drm_modeset_lock_all(dev);
-	for (i = 0; i < fb_helper->crtc_count; i++) {
-		ret = drm_mode_set_config_internal(&fb_helper->crtc_info[i].mode_set);
-		if (ret) {
-			drm_modeset_unlock_all(dev);
-			return ret;
-		}
-	}
+	drm_fb_helper_restore_fbdev_mode(fb_helper);
 	drm_modeset_unlock_all(dev);
 
 	if (fb_helper->delayed_hotplug) {
@@ -1136,19 +1132,20 @@ static int drm_fb_helper_probe_connector_modes(struct drm_fb_helper *fb_helper,
 	return count;
 }
 
-static struct drm_display_mode *drm_has_preferred_mode(struct drm_fb_helper_connector *fb_connector, int width, int height)
+struct drm_display_mode *drm_has_preferred_mode(struct drm_fb_helper_connector *fb_connector, int width, int height)
 {
 	struct drm_display_mode *mode;
 
 	list_for_each_entry(mode, &fb_connector->connector->modes, head) {
-		if (drm_mode_width(mode) > width ||
-		    drm_mode_height(mode) > height)
+		if (mode->hdisplay > width ||
+		    mode->vdisplay > height)
 			continue;
 		if (mode->type & DRM_MODE_TYPE_PREFERRED)
 			return mode;
 	}
 	return NULL;
 }
+EXPORT_SYMBOL(drm_has_preferred_mode);
 
 static bool drm_has_cmdline_mode(struct drm_fb_helper_connector *fb_connector)
 {
@@ -1157,11 +1154,12 @@ static bool drm_has_cmdline_mode(struct drm_fb_helper_connector *fb_connector)
 	return cmdline_mode->specified;
 }
 
-static struct drm_display_mode *drm_pick_cmdline_mode(struct drm_fb_helper_connector *fb_helper_conn,
+struct drm_display_mode *drm_pick_cmdline_mode(struct drm_fb_helper_connector *fb_helper_conn,
 						      int width, int height)
 {
 	struct drm_cmdline_mode *cmdline_mode;
 	struct drm_display_mode *mode = NULL;
+	bool prefer_non_interlace;
 
 	cmdline_mode = &fb_helper_conn->cmdline_mode;
 	if (cmdline_mode->specified == false)
@@ -1173,6 +1171,8 @@ static struct drm_display_mode *drm_pick_cmdline_mode(struct drm_fb_helper_conne
 	if (cmdline_mode->rb || cmdline_mode->margins)
 		goto create_mode;
 
+	prefer_non_interlace = !cmdline_mode->interlace;
+ again:
 	list_for_each_entry(mode, &fb_helper_conn->connector->modes, head) {
 		/* check width/height */
 		if (mode->hdisplay != cmdline_mode->xres ||
@@ -1187,16 +1187,25 @@ static struct drm_display_mode *drm_pick_cmdline_mode(struct drm_fb_helper_conne
 		if (cmdline_mode->interlace) {
 			if (!(mode->flags & DRM_MODE_FLAG_INTERLACE))
 				continue;
+		} else if (prefer_non_interlace) {
+			if (mode->flags & DRM_MODE_FLAG_INTERLACE)
+				continue;
 		}
 		return mode;
 	}
 
+	if (prefer_non_interlace) {
+		prefer_non_interlace = false;
+		goto again;
+	}
+
 create_mode:
 	mode = drm_mode_create_from_cmdline_mode(fb_helper_conn->connector->dev,
 						 cmdline_mode);
 	list_add(&mode->head, &fb_helper_conn->connector->modes);
 	return mode;
 }
+EXPORT_SYMBOL(drm_pick_cmdline_mode);
 
 static bool drm_connector_enabled(struct drm_connector *connector, bool strict)
 {
@@ -1539,9 +1548,11 @@ bool drm_fb_helper_initial_config(struct drm_fb_helper *fb_helper, int bpp_sel)
 
 	drm_fb_helper_parse_command_line(fb_helper);
 
+	mutex_lock(&dev->mode_config.mutex);
 	count = drm_fb_helper_probe_connector_modes(fb_helper,
 						    dev->mode_config.max_width,
 						    dev->mode_config.max_height);
+	mutex_unlock(&dev->mode_config.mutex);
 	/*
 	 * we shouldn't end up with no modes here.
 	 */

drivers/gpu/drm/drm_gem.c

@@ -85,9 +85,9 @@
 #endif
 
 /**
- * Initialize the GEM device fields
+ * drm_gem_init - Initialize the GEM device fields
+ * @dev: drm_devic structure to initialize
  */
-
 int
 drm_gem_init(struct drm_device *dev)
 {
@@ -120,6 +120,11 @@ drm_gem_destroy(struct drm_device *dev)
 }
 
 /**
+ * drm_gem_object_init - initialize an allocated shmem-backed GEM object
+ * @dev: drm_device the object should be initialized for
+ * @obj: drm_gem_object to initialize
+ * @size: object size
+ *
  * Initialize an already allocated GEM object of the specified size with
  * shmfs backing store.
  */
@@ -141,6 +146,11 @@ int drm_gem_object_init(struct drm_device *dev,
 EXPORT_SYMBOL(drm_gem_object_init);
 
 /**
+ * drm_gem_object_init - initialize an allocated private GEM object
+ * @dev: drm_device the object should be initialized for
+ * @obj: drm_gem_object to initialize
+ * @size: object size
+ *
  * Initialize an already allocated GEM object of the specified size with
  * no GEM provided backing store. Instead the caller is responsible for
  * backing the object and handling it.
@@ -176,6 +186,9 @@ drm_gem_remove_prime_handles(struct drm_gem_object *obj, struct drm_file *filp)
 }
 
 /**
+ * drm_gem_object_free - release resources bound to userspace handles
+ * @obj: GEM object to clean up.
+ *
  * Called after the last handle to the object has been closed
  *
  * Removes any name for the object. Note that this must be
@@ -225,7 +238,12 @@ drm_gem_object_handle_unreference_unlocked(struct drm_gem_object *obj)
 }
 
 /**
- * Removes the mapping from handle to filp for this object.
+ * drm_gem_handle_delete - deletes the given file-private handle
+ * @filp: drm file-private structure to use for the handle look up
+ * @handle: userspace handle to delete
+ *
+ * Removes the GEM handle from the @filp lookup table and if this is the last
+ * handle also cleans up linked resources like GEM names.
  */
 int
 drm_gem_handle_delete(struct drm_file *filp, u32 handle)
@@ -270,6 +288,9 @@ EXPORT_SYMBOL(drm_gem_handle_delete);
 
 /**
  * drm_gem_dumb_destroy - dumb fb callback helper for gem based drivers
+ * @file: drm file-private structure to remove the dumb handle from
+ * @dev: corresponding drm_device
+ * @handle: the dumb handle to remove
  * 
  * This implements the ->dumb_destroy kms driver callback for drivers which use
  * gem to manage their backing storage.
@@ -284,6 +305,9 @@ EXPORT_SYMBOL(drm_gem_dumb_destroy);
 
 /**
  * drm_gem_handle_create_tail - internal functions to create a handle
+ * @file_priv: drm file-private structure to register the handle for
+ * @obj: object to register
+ * @handlep: pionter to return the created handle to the caller
  * 
  * This expects the dev->object_name_lock to be held already and will drop it
  * before returning. Used to avoid races in establishing new handles when
@@ -336,6 +360,11 @@ drm_gem_handle_create_tail(struct drm_file *file_priv,
 }
 
 /**
+ * gem_handle_create - create a gem handle for an object
+ * @file_priv: drm file-private structure to register the handle for
+ * @obj: object to register
+ * @handlep: pionter to return the created handle to the caller
+ *
  * Create a handle for this object. This adds a handle reference
  * to the object, which includes a regular reference count. Callers
  * will likely want to dereference the object afterwards.
@@ -536,6 +565,11 @@ drm_gem_object_lookup(struct drm_device *dev, struct drm_file *filp,
 EXPORT_SYMBOL(drm_gem_object_lookup);
 
 /**
+ * drm_gem_close_ioctl - implementation of the GEM_CLOSE ioctl
+ * @dev: drm_device
+ * @data: ioctl data
+ * @file_priv: drm file-private structure
+ *
  * Releases the handle to an mm object.
  */
 int
@@ -554,6 +588,11 @@ drm_gem_close_ioctl(struct drm_device *dev, void *data,
 }
 
 /**
+ * drm_gem_flink_ioctl - implementation of the GEM_FLINK ioctl
+ * @dev: drm_device
+ * @data: ioctl data
+ * @file_priv: drm file-private structure
+ *
  * Create a global name for an object, returning the name.
  *
  * Note that the name does not hold a reference; when the object
@@ -601,6 +640,11 @@ drm_gem_flink_ioctl(struct drm_device *dev, void *data,
 }
 
 /**
+ * drm_gem_open - implementation of the GEM_OPEN ioctl
+ * @dev: drm_device
+ * @data: ioctl data
+ * @file_priv: drm file-private structure
+ *
  * Open an object using the global name, returning a handle and the size.
  *
  * This handle (of course) holds a reference to the object, so the object
@@ -640,6 +684,10 @@ drm_gem_open_ioctl(struct drm_device *dev, void *data,
 }
 
 /**
+ * gem_gem_open - initalizes GEM file-private structures at devnode open time
+ * @dev: drm_device which is being opened by userspace
+ * @file_private: drm file-private structure to set up
+ *
  * Called at device open time, sets up the structure for handling refcounting
  * of mm objects.
  */
@@ -650,7 +698,7 @@ drm_gem_open(struct drm_device *dev, struct drm_file *file_private)
 	spin_lock_init(&file_private->table_lock);
 }
 
-/**
+/*
  * Called at device close to release the file's
  * handle references on objects.
  */
@@ -674,6 +722,10 @@ drm_gem_object_release_handle(int id, void *ptr, void *data)
 }
 
 /**
+ * drm_gem_release - release file-private GEM resources
+ * @dev: drm_device which is being closed by userspace
+ * @file_private: drm file-private structure to clean up
+ *
  * Called at close time when the filp is going away.
  *
  * Releases any remaining references on objects by this filp.
@@ -693,10 +745,15 @@ drm_gem_object_release(struct drm_gem_object *obj)
 
 	if (obj->filp)
 		fput(obj->filp);
+
+	drm_gem_free_mmap_offset(obj);
 }
 EXPORT_SYMBOL(drm_gem_object_release);
 
 /**
+ * drm_gem_object_free - free a GEM object
+ * @kref: kref of the object to free
+ *
  * Called after the last reference to the object has been lost.
  * Must be called holding struct_ mutex
  *
@@ -818,7 +875,7 @@ int drm_gem_mmap(struct file *filp, struct vm_area_struct *vma)
 	struct drm_device *dev = priv->minor->dev;
 	struct drm_gem_object *obj;
 	struct drm_vma_offset_node *node;
-	int ret = 0;
+	int ret;
 
 	if (drm_device_is_unplugged(dev))
 		return -ENODEV;

drivers/gpu/drm/drm_ioctl.c

@@ -328,6 +328,13 @@ drm_setclientcap(struct drm_device *dev, void *data, struct drm_file *file_priv)
 			return -EINVAL;
 		file_priv->stereo_allowed = req->value;
 		break;
+	case DRM_CLIENT_CAP_UNIVERSAL_PLANES:
+		if (!drm_universal_planes)
+			return -EINVAL;
+		if (req->value > 1)
+			return -EINVAL;
+		file_priv->universal_planes = req->value;
+		break;
 	default:
 		return -EINVAL;
 	}

drivers/gpu/drm/drm_pci.c

@@ -351,7 +351,7 @@ int drm_get_pci_dev(struct pci_dev *pdev, const struct pci_device_id *ent,
 	drm_pci_agp_destroy(dev);
 	pci_disable_device(pdev);
 err_free:
-	drm_dev_free(dev);
+	drm_dev_unref(dev);
 	return ret;
 }
 EXPORT_SYMBOL(drm_get_pci_dev);