video: fb: vt8500: Convert framebuffer drivers to standardized binding

Now that a display timing binding is available, convert our almost identical binding to use the standard binding. This patch converts the vt8500 and wm8505 framebuffer drivers and associated dts/dtsi files to use the standard binding as defined in bindings/video/display-timing.txt. There are two side-effects of making this conversion: 1) The fb node should now be in the board file, rather than the soc file as the display-timing node is a child of the fb node. 2) We still require a bits per pixel property to initialize the framebuffer for the different lcd panels. Rather than including this as part of the display timing, it is moved into the framebuffer node. I have also taken the opportunity to alphabetise the includes of each driver to avoid double-ups. Signed-off-by: Tony Prisk <linux@prisktech.co.nz> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
git-mirror · Apr 4, 2013 · 7ab0a48 · 7ab0a48
1 parent de68efc
commit 7ab0a48
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diff --git a/Documentation/devicetree/bindings/video/via,vt8500-fb.txt b/Documentation/devicetree/bindings/video/via,vt8500-fb.txt
@@ -5,58 +5,32 @@ Required properties:
 - compatible : "via,vt8500-fb"
 - reg : Should contain 1 register ranges(address and length)
 - interrupts : framebuffer controller interrupt
-- display: a phandle pointing to the display node
+- bits-per-pixel : bit depth of framebuffer (16 or 32)
 
-Required nodes:
-- display: a display node is required to initialize the lcd panel
-	This should be in the board dts.
-- default-mode: a videomode within the display with timing parameters
-	as specified below.
+Required subnodes:
+- display-timings: see display-timing.txt for information
 
 Example:
 
-	fb@d800e400 {
+	fb@d8050800 {
 		compatible = "via,vt8500-fb";
 		reg = <0xd800e400 0x400>;
 		interrupts = <12>;
-		display = <&display>;
-		default-mode = <&mode0>;
-	};
-
-VIA VT8500 Display
------------------------------------------------------
-Required properties (as per of_videomode_helper):
-
- - hactive, vactive: Display resolution
- - hfront-porch, hback-porch, hsync-len: Horizontal Display timing parameters
-   in pixels
-   vfront-porch, vback-porch, vsync-len: Vertical display timing parameters in
-   lines
- - clock: displayclock in Hz
- - bpp: lcd panel bit-depth.
-	<16> for RGB565, <32> for RGB888
-
-Optional properties (as per of_videomode_helper):
- - width-mm, height-mm: Display dimensions in mm
- - hsync-active-high (bool): Hsync pulse is active high
- - vsync-active-high (bool): Vsync pulse is active high
- - interlaced (bool): This is an interlaced mode
- - doublescan (bool): This is a doublescan mode
+		bits-per-pixel = <16>;
 
-Example:
-	display: display@0 {
-		modes {
-			mode0: mode@0 {
+		display-timings {
+			native-mode = <&timing0>;
+			timing0: 800x480 {
+				clock-frequency = <0>; /* unused but required */
 				hactive = <800>;
 				vactive = <480>;
-				hback-porch = <88>;
 				hfront-porch = <40>;
+				hback-porch = <88>;
 				hsync-len = <0>;
 				vback-porch = <32>;
 				vfront-porch = <11>;
 				vsync-len = <1>;
-				clock = <0>;	/* unused but required */
-				bpp = <16>;	/* non-standard but required */
 			};
 		};
 	};
+
diff --git a/Documentation/devicetree/bindings/video/wm,wm8505-fb.txt b/Documentation/devicetree/bindings/video/wm,wm8505-fb.txt
@@ -4,20 +4,30 @@ Wondermedia WM8505 Framebuffer
 Required properties:
 - compatible : "wm,wm8505-fb"
 - reg : Should contain 1 register ranges(address and length)
-- via,display: a phandle pointing to the display node
+- bits-per-pixel : bit depth of framebuffer (16 or 32)
 
-Required nodes:
-- display: a display node is required to initialize the lcd panel
-	This should be in the board dts. See definition in
-	Documentation/devicetree/bindings/video/via,vt8500-fb.txt
-- default-mode: a videomode node as specified in
-	Documentation/devicetree/bindings/video/via,vt8500-fb.txt
+Required subnodes:
+- display-timings: see display-timing.txt for information
 
 Example:
 
-	fb@d8050800 {
+	fb@d8051700 {
 		compatible = "wm,wm8505-fb";
-		reg = <0xd8050800 0x200>;
-		display = <&display>;
-		default-mode = <&mode0>;
+		reg = <0xd8051700 0x200>;
+		bits-per-pixel = <16>;
+
+		display-timings {
+			native-mode = <&timing0>;
+			timing0: 800x480 {
+				clock-frequency = <0>; /* unused but required */
+				hactive = <800>;
+				vactive = <480>;
+				hfront-porch = <40>;
+				hback-porch = <88>;
+				hsync-len = <0>;
+				vback-porch = <32>;
+				vfront-porch = <11>;
+				vsync-len = <1>;
+			};
+		};
 	};
diff --git a/arch/arm/boot/dts/vt8500-bv07.dts b/arch/arm/boot/dts/vt8500-bv07.dts
@@ -11,26 +11,22 @@
 
 / {
 	model = "Benign BV07 Netbook";
+};
 
-	/*
-	 * Display node is based on Sascha Hauer's patch on dri-devel.
-	 * Added a bpp property to calculate the size of the framebuffer
-	 * until the binding is formalized.
-	 */
-	display: display@0 {
-		modes {
-			mode0: mode@0 {
-				hactive = <800>;
-				vactive = <480>;
-				hback-porch = <88>;
-				hfront-porch = <40>;
-				hsync-len = <0>;
-				vback-porch = <32>;
-				vfront-porch = <11>;
-				vsync-len = <1>;
-				clock = <0>;	/* unused but required */
-				bpp = <16>;	/* non-standard but required */
-			};
+&fb {
+	bits-per-pixel = <16>;
+	display-timings {
+		native-mode = <&timing0>;
+		timing0: 800x480 {
+			clock-frequency = <0>; /* unused but required */
+			hactive = <800>;
+			vactive = <480>;
+			hfront-porch = <40>;
+			hback-porch = <88>;
+			hsync-len = <0>;
+			vback-porch = <32>;
+			vfront-porch = <11>;
+			vsync-len = <1>;
 		};
 	};
 };
diff --git a/arch/arm/boot/dts/vt8500.dtsi b/arch/arm/boot/dts/vt8500.dtsi
@@ -98,12 +98,10 @@
 			interrupts = <43>;
 		};
 
-		fb@d800e400 {
+		fb: fb@d8050800 {
 			compatible = "via,vt8500-fb";
 			reg = <0xd800e400 0x400>;
 			interrupts = <12>;
-			display = <&display>;
-			default-mode = <&mode0>;
 		};
 
 		ge_rops@d8050400 {

diff --git a/arch/arm/boot/dts/wm8505-ref.dts b/arch/arm/boot/dts/wm8505-ref.dts
@@ -11,26 +11,22 @@
 
 / {
 	model = "Wondermedia WM8505 Netbook";
+};
 
-	/*
-	 * Display node is based on Sascha Hauer's patch on dri-devel.
-	 * Added a bpp property to calculate the size of the framebuffer
-	 * until the binding is formalized.
-	 */
-	display: display@0 {
-		modes {
-			mode0: mode@0 {
-				hactive = <800>;
-				vactive = <480>;
-				hback-porch = <88>;
-				hfront-porch = <40>;
-				hsync-len = <0>;
-				vback-porch = <32>;
-				vfront-porch = <11>;
-				vsync-len = <1>;
-				clock = <0>;	/* unused but required */
-				bpp = <32>;	/* non-standard but required */
-			};
+&fb {
+	bits-per-pixel = <32>;
+	display-timings {
+		native-mode = <&timing0>;
+		timing0: 800x480 {
+			clock-frequency = <0>; /* unused but required */
+			hactive = <800>;
+			vactive = <480>;
+			hfront-porch = <40>;
+			hback-porch = <88>;
+			hsync-len = <0>;
+			vback-porch = <32>;
+			vfront-porch = <11>;
+			vsync-len = <1>;
 		};
 	};
 };
diff --git a/arch/arm/boot/dts/wm8505.dtsi b/arch/arm/boot/dts/wm8505.dtsi
@@ -128,11 +128,9 @@
 			interrupts = <0>;
 		};
 
-		fb@d8050800 {
+		fb: fb@d8050800 {
 			compatible = "wm,wm8505-fb";
 			reg = <0xd8050800 0x200>;
-			display = <&display>;
-			default-mode = <&mode0>;
 		};
 
 		ge_rops@d8050400 {

diff --git a/arch/arm/boot/dts/wm8650-mid.dts b/arch/arm/boot/dts/wm8650-mid.dts
@@ -11,26 +11,24 @@
 
 / {
 	model = "Wondermedia WM8650-MID Tablet";
+};
+
+&fb {
+	bits-per-pixel = <16>;
 
-	/*
-	 * Display node is based on Sascha Hauer's patch on dri-devel.
-	 * Added a bpp property to calculate the size of the framebuffer
-	 * until the binding is formalized.
-	 */
-	display: display@0 {
-		modes {
-			mode0: mode@0 {
-				hactive = <800>;
-				vactive = <480>;
-				hback-porch = <88>;
-				hfront-porch = <40>;
-				hsync-len = <0>;
-				vback-porch = <32>;
-				vfront-porch = <11>;
-				vsync-len = <1>;
-				clock = <0>;	/* unused but required */
-				bpp = <16>;	/* non-standard but required */
-			};
+	display-timings {
+		native-mode = <&timing0>;
+		timing0: 800x480 {
+			clock-frequency = <0>; /* unused but required */
+			hactive = <800>;
+			vactive = <480>;
+			hfront-porch = <40>;
+			hback-porch = <88>;
+			hsync-len = <0>;
+			vback-porch = <32>;
+			vfront-porch = <11>;
+			vsync-len = <1>;
 		};
 	};
 };
+
diff --git a/arch/arm/boot/dts/wm8650.dtsi b/arch/arm/boot/dts/wm8650.dtsi
@@ -128,11 +128,9 @@
 			interrupts = <43>;
 		};
 
-		fb@d8050800 {
+		fb: fb@d8050800 {
 			compatible = "wm,wm8505-fb";
 			reg = <0xd8050800 0x200>;
-			display = <&display>;
-			default-mode = <&mode0>;
 		};
 
 		ge_rops@d8050400 {

diff --git a/arch/arm/boot/dts/wm8850-w70v2.dts b/arch/arm/boot/dts/wm8850-w70v2.dts
@@ -15,28 +15,6 @@
 / {
 	model = "Wondermedia WM8850-W70v2 Tablet";
 
-	/*
-	 * Display node is based on Sascha Hauer's patch on dri-devel.
-	 * Added a bpp property to calculate the size of the framebuffer
-	 * until the binding is formalized.
-	 */
-	display: display@0 {
-		modes {
-			mode0: mode@0 {
-				hactive = <800>;
-				vactive = <480>;
-				hback-porch = <88>;
-				hfront-porch = <40>;
-				hsync-len = <0>;
-				vback-porch = <32>;
-				vfront-porch = <11>;
-				vsync-len = <1>;
-				clock = <0>;	/* unused but required */
-				bpp = <16>;	/* non-standard but required */
-			};
-		};
-	};
-
 	backlight {
 		compatible = "pwm-backlight";
 		pwms = <&pwm 0 50000 1>;	/* duty inverted */
@@ -45,3 +23,21 @@
 		default-brightness-level = <5>;
 	};
 };
+
+&fb {
+	bits-per-pixel = <16>;
+	display-timings {
+		native-mode = <&timing0>;
+		timing0: 800x480 {
+			clock-frequency = <0>; /* unused but required */
+			hactive = <800>;
+			vactive = <480>;
+			hfront-porch = <40>;
+			hback-porch = <88>;
+			hsync-len = <0>;
+			vback-porch = <32>;
+			vfront-porch = <11>;
+			vsync-len = <1>;
+		};
+	};
+};
diff --git a/arch/arm/boot/dts/wm8850.dtsi b/arch/arm/boot/dts/wm8850.dtsi
@@ -135,11 +135,9 @@
 			};
 		};
 
-		fb@d8051700 {
+		fb: fb@d8051700 {
 			compatible = "wm,wm8505-fb";
 			reg = <0xd8051700 0x200>;
-			display = <&display>;
-			default-mode = <&mode0>;
 		};
 
 		ge_rops@d8050400 {

diff --git a/drivers/video/Kconfig b/drivers/video/Kconfig
@@ -1794,6 +1794,9 @@ config FB_VT8500
 	select FB_SYS_FILLRECT if (!FB_WMT_GE_ROPS)
 	select FB_SYS_COPYAREA if (!FB_WMT_GE_ROPS)
 	select FB_SYS_IMAGEBLIT
+	select FB_MODE_HELPERS
+	select OF_DISPLAY_TIMING
+	select OF_VIDEOMODE
 	help
 	  This is the framebuffer driver for VIA VT8500 integrated LCD
 	  controller.
@@ -1804,6 +1807,9 @@ config FB_WM8505
 	select FB_SYS_FILLRECT if (!FB_WMT_GE_ROPS)
 	select FB_SYS_COPYAREA if (!FB_WMT_GE_ROPS)
 	select FB_SYS_IMAGEBLIT
+	select FB_MODE_HELPERS
+	select OF_DISPLAY_TIMING
+	select OF_VIDEOMODE
 	help
 	  This is the framebuffer driver for WonderMedia WM8xxx-series
 	  integrated LCD controller. This driver covers the WM8505, WM8650