[PATCH 0/3] DT support for da850-evm LCD

[PATCH 0/3] DT support for da850-evm LCD

[Philip Avinash]

Add support for da850-evm LCD.
Depends on [1], [2] and [3] and based on 3.9.rc4.
Tested on da850-evm and available for testing at [4]

1. video: da8xx-fb: am335x DT support
   https://lkml.org/lkml/2013/1/28/90
2. video: da8xx-fb: runtime timing configuration.
   https://lkml.org/lkml/2013/1/15/241
3. Platform support for EHRPWM & ECAP devices in DAVINCI.
   http://linux.davincidsp.com/pipermail/davinci-linux-open-source/2013-March/026798.html
4. https://github.com/avinashphilip/am335x_linux/tree/da850_lcd_dt_support 

Testing:
LCD panel back light should enabled through PWM. But back light goes off on SPI
transactions as spi1_cs0 will be the source for LCD back light power (provided
SPI flash support enabled).

Philip Avinash (3):
  ARM: davinci: da850: Add LCDC DT entries
  ARM: davinci: da850: override LCDC DT node device name
  ARM: davinci: da850 evm: Add da850-evm LCD panel support

 arch/arm/boot/dts/da850-evm.dts  |   22 ++++++++++++++++++++++
 arch/arm/boot/dts/da850.dtsi     |   21 +++++++++++++++++++++
 arch/arm/mach-davinci/da8xx-dt.c |    1 +
 3 files changed, 44 insertions(+)

-- 
1.7.9.5

[PATCH 1/3] ARM: davinci: da850: Add LCDC DT entries

[Philip Avinash]

Add LCDC DT entries in da850 dts file.

Signed-off-by: Philip Avinash <avinashphilip@ti.com>
---
 arch/arm/boot/dts/da850.dtsi |   21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)

diff --git a/arch/arm/boot/dts/da850.dtsi b/arch/arm/boot/dts/da850.dtsi
index a6cbf89..087b4ea 100644
--- a/arch/arm/boot/dts/da850.dtsi
+++ b/arch/arm/boot/dts/da850.dtsi
@@ -62,6 +62,21 @@
 					0x10 0x00002200 0x0000ff00
 				>;
 			};
+			lcdc_pins:pinmux_lcdc_pins {
+				pinctrl-single,bits = <
+					/* LCD_D[2], LCD_D[3], LCD_D[4],
+					   LCD_D[5], LCD_D[6], LCD_D[7] */
+					0x40 0x22222200 0xffffff00
+					/* LCD_D[10], LCD_D[11], LCD_D[12],
+					   LCD_D[13], LCD_D[14], LCD_D[15],
+					   LCD_D[0], LCD_D[1] */
+					0x44 0x22222222 0xffffffff
+					/* LCD_PCLK, LCD_D[8], LCD_D[9] */
+					0x48 0x02000022 0x0f0000ff
+					/* LCD_AC_ENB_CS, LCD_VSYNC, LCD_HSYNC*/
+					0x4c 0x02000022 0x0f0000ff
+				>;
+			};
 		};
 		serial0: serial@1c42000 {
 			compatible = "ns16550a";
@@ -137,6 +152,12 @@
 			reg = <0x308000 0x80>;
 			status = "disabled";
 		};
+		lcdc: lcdc@01e13000 {
+			compatible = "ti,da830-lcdc";
+			reg = <0x213000 0x1000>;
+			interrupts = <52>;
+			status = "disabled";
+		};
 	};
 	nand_cs3@62000000 {
 		compatible = "ti,davinci-nand";
-- 
1.7.9.5

[PATCH 2/3] ARM: davinci: da850: override LCDC DT node device name

[Philip Avinash]

Populate OF_DEV_AUXDATA with desired device name expected by da8xx-fb
driver. Without this clk_get of da8xx-fb DT driver fails.

Signed-off-by: Philip Avinash <avinashphilip@ti.com>
---
 arch/arm/mach-davinci/da8xx-dt.c |    1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm/mach-davinci/da8xx-dt.c b/arch/arm/mach-davinci/da8xx-dt.c
index 89ee974..3436052 100644
--- a/arch/arm/mach-davinci/da8xx-dt.c
+++ b/arch/arm/mach-davinci/da8xx-dt.c
@@ -45,6 +45,7 @@ struct of_dev_auxdata da850_auxdata_lookup[] __initdata = {
 	OF_DEV_AUXDATA("ti,da850-ecap", 0x01f06000, "ecap", NULL),
 	OF_DEV_AUXDATA("ti,da850-ecap", 0x01f07000, "ecap", NULL),
 	OF_DEV_AUXDATA("ti,da850-ecap", 0x01f08000, "ecap", NULL),
+	OF_DEV_AUXDATA("ti,da830-lcdc", 0x01e13000, "da8xx_lcdc.0", NULL),
 	{}
 };
 
-- 
1.7.9.5

[PATCH 3/3] ARM: davinci: da850 evm: Add da850-evm LCD panel support

[Philip Avinash]

Update LCDC node with panel timings for da850-evm along pin-mux info.

Signed-off-by: Philip Avinash <avinashphilip@ti.com>
---
 arch/arm/boot/dts/da850-evm.dts |   22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)

diff --git a/arch/arm/boot/dts/da850-evm.dts b/arch/arm/boot/dts/da850-evm.dts
index cae024b..33d024e 100644
--- a/arch/arm/boot/dts/da850-evm.dts
+++ b/arch/arm/boot/dts/da850-evm.dts
@@ -50,6 +50,28 @@
 			pinctrl-names = "default";
 			pinctrl-0 = <&ehrpwm1_pins>;
 		};
+
+		lcdc: lcdc@01e13000 {
+			status = "okay";
+			pinctrl-names = "default";
+			pinctrl-0 = <&lcdc_pins>;
+
+			display-timings {
+				480x272p62 {
+					clock-frequency = <7833600>;
+					hactive = <480>;
+					vactive = <272>;
+					hfront-porch = <2>;
+					hback-porch = <2>;
+					hsync-len = <41>;
+					vback-porch = <2>;
+					vfront-porch = <2>;
+					vsync-len = <10>;
+					hsync-active = <1>;
+					vsync-active = <1>;
+				};
+			};
+		};
 	};
 	nand_cs3@62000000 {
 		status = "okay";
-- 
1.7.9.5