Messages in this thread Patch in this message | | | From | Greg Kroah-Hartman <> | Subject | [PATCH 3.18 117/150] ARM: dts: am437x-sk-evm.dts: fix LCD timings | Date | Tue, 13 Jan 2015 23:23:08 -0800 |
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3.18-stable review patch. If anyone has any objections, please let me know.
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From: Tomi Valkeinen <tomi.valkeinen@ti.com>
commit d73f825e6efa723e81d9ffcc4949fe9f03f1df29 upstream.
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.
Tested-by: Felipe Balbi <balbi@ti.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
--- arch/arm/boot/dts/am437x-sk-evm.dts | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-)
--- a/arch/arm/boot/dts/am437x-sk-evm.dts +++ b/arch/arm/boot/dts/am437x-sk-evm.dts @@ -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>;
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