On 08/31/2016 08:30 PM, Andrzej Hajda wrote:
> Hi,
>
>
> On 08/30/2016 12:50 AM, Randy Li wrote:
>> It is actually a lvds panel connected through a rga-lvds bridge.
>> But I really have no idea about what does a port mean in fimd node.
>>
>> Also how should I configure this panel size? I think the i2c found
>> on the panel schematic, but it more likely to be used a touch screen
>> touth. Also the touch screen is not supported in currently driver.
>>
>> Signed-off-by: Randy Li <ayaka at soulik.info>
>> ---
>> arch/arm/boot/dts/exynos4412-itop-elite.dts | 35
>> ++++++++++++++++++++++++++---
>> 1 file changed, 32 insertions(+), 3 deletions(-)
>>
>> diff --git a/arch/arm/boot/dts/exynos4412-itop-elite.dts
>> b/arch/arm/boot/dts/exynos4412-itop-elite.dts
>> index e1cda54..2d67385 100644
>> --- a/arch/arm/boot/dts/exynos4412-itop-elite.dts
>> +++ b/arch/arm/boot/dts/exynos4412-itop-elite.dts
>> @@ -139,6 +139,20 @@
>> assigned-clocks = <&clock CLK_MOUT_CAM0>;
>> assigned-clock-parents = <&clock CLK_XUSBXTI>;
>> };
>> +
>> + vcc_sys_lcd: sys-lcd {
>> + compatible = "regulator-fixed";
>> + regulator-name = "vcc_5v";
>> + regulator-min-microvolt = <5000000>;
>> + regulator-max-microvolt = <5000000>;
>> + gpio = <&gpl0 4 GPIO_ACTIVE_HIGH>;
>> + };
>> +
>> + panel: panel {
>> + ddc-i2c-bus = <&i2c_3>;
>> + power-supply = <&vcc_sys_lcd>;
>> + enable-gpios = <&gpl0 2 GPIO_ACTIVE_HIGH>;
>> + };
> Panel has no compatible string, which driver will handle this node?
The problem is that, it is panel not supported by kernel. Is it possible
to support without adding a new driver for it ? I know there is a
simple-dpi for MIPI, but what is for parallel video or lvds?
> Regards
> Andrzej
The other problem is that I don't how to configure the display-times,
the datasheet for CLAA070WP03XG only talk about total time, active time
and blank time for both Horizontal an Vertical time. Does it mean the
front-porch and sync-len for horizontal and vertical are zero ?
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ port at 3 {
+ reg = <3>;
+ rga_lvds: endpoint {
+ remote-endpoint = <&panel>;
+ };
+ };
+ };
+
+ panel: panel at 0 {
+ compatible = "panel-simple";
+
+ power-supply = <&vcc_sys_lcd>;
+ enable-gpios = <&gpl0 2 GPIO_ACTIVE_HIGH>;
+ display-timings {
+ timing-0 {
+ clock-frequency = <66770000>;
+ hactive = <800>;
+ vactive = <1280>;
+ hfront-porch = <0>;
+ hback-porch = <64>;
+ hsync-len = <0>;
+ vfront-porch = <0>;
+ vback-porch = <8>;
+ vsync-len = <0>;
+ };
+ };
