mirrors
/
linux-stable
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
1
0
Fork 0
Code Issues Releases Wiki Activity

ARM: dts: am437x-sk-evm.dts: fix LCD timings 

The lcd0 node for am437x-sk-evm.dts contains bad LCD timings, and while
they seem to work with a quick test, doing for example blank/unblank
will give you a black display.

This patch updates the timings to the 'typical' values from the LCD spec
sheet.

Also, the compatible string is completely bogus, as
"osddisplays,osd057T0559-34ts" is _not_ a 480x272 panel. The panel on
the board is a newhaven one. Update the compatible string to reflect
this. Note that this hasn't caused any issues, as the "panel-dpi"
matches the driver.

Cc: <stable@vger.kernel.org> # v3.17+
Tested-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
This commit is contained in:
Tomi Valkeinen 2014-12-05 09:39:31 +02:00 committed by Tony Lindgren
parent 70fcaf921c
commit d73f825e6e
1 changed files with 6 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
arch/arm/boot/dts/am437x-sk-evm.dts
View File

@ -100,7 +100,7 @@
};
lcd0: display {
compatible = "osddisplays,osd057T0559-34ts", "panel-dpi";
compatible = "newhaven,nhd-4.3-480272ef-atxl", "panel-dpi";
label = "lcd";
pinctrl-names = "default";
@ -112,11 +112,11 @@
clock-frequency = <9000000>;
hactive = <480>;
vactive = <272>;
hfront-porch = <8>;
hback-porch = <43>;
hsync-len = <4>;
vback-porch = <12>;
vfront-porch = <4>;
hfront-porch = <2>;
hback-porch = <2>;
hsync-len = <41>;
vfront-porch = <2>;
vback-porch = <2>;
vsync-len = <10>;
hsync-active = <0>;
vsync-active = <0>;