am335x LCD resolution

Hi Henrik,

The newest official release by TI is SDK 7.0, based on kernel 3.12.10. Here is the wiki link for the LCD driver: http://processors.wiki.ti.com/index.php/Linux_Core_LCD_Controller_User_Guide

Yes, I am aware of that but this is a project that will not be ready for production in quite some time so we based it on the "next" release.
i.e git.ti.com/.../ti-linux-3.14.y

As said, the display works otherwise fine and it works as described in the wiki for the 3.12.x but somehow the vyres is set incorrectly. We had a similar issue with the old 3.2 release but there we just manually set the parameters on every boot but I would like to find a proper solution this time.

Hi Henrik,

I think that you are not initialize good the lcd display driver. Could you see the parameters in struct <vendor>_<model> known_lcd_panels[] in a <>/drivers/video/xxx.c file. There you have to initialize the correct value for your LCD. Also see all parameters for fbset commands. I'm embarassed for the second and third line: geometry that in your board is D0, H0, V0, also timing line is 0 too. This is not normal. See the value on my board:
root@am335x-evm:~# fbset

mode "800x480-62"
# D: 30.000 MHz, H: 32.433 kHz, V: 61.895 Hz
geometry 800 480 800 960 32
timings 33333 39 39 29 13 47 2
hsync high
vsync high
rgba 8/16,8/8,8/0,8/24
endmode

BR
Ivan

Afaik, it gets its timings from the device tree since this is the DRM driver and not the old framebuffer driver. It uses the simple-panel declaration as described in Documentation/devicetree/bindings/drm/tilcdc

	panel {
		compatible = "ti,tilcdc,panel";
		status = "okay";
		backlight = <&backlight>;
		panel-info {
			ac-bias           = <255>;
			ac-bias-intrpt    = <0>;
			dma-burst-sz      = <16>;
			bpp               = <16>;
			fdd               = <0x80>;
			sync-edge         = <1>;
			sync-ctrl         = <1>;
			raster-order      = <1>;
			fifo-th           = <0>;
			invert-pxl-clk	  = <1>;
		};

		display-timings {
			native-mode = <&timing0>;
			timing0: 320x240 { 
				clock-frequency = <6500000>;
				hactive = <320>;
				vactive = <240>;
				hfront-porch = <20>;
				hback-porch = <38>;
				hsync-len = <30>;
				vback-porch = <15>;
				vfront-porch = <4>;
				vsync-len = <4>;
				hsync-active = <0>;
				vsync-active = <0>;

			};
		};
	};

//Henrik