Hi Heiko
On 01/20/2016 03:26 AM, Heiko Stuebner wrote:
> Hi Chris,
>
> Am Mittwoch, 6. Januar 2016, 12:03:57 schrieb Chris Zhong:
>> This tv080wum-nl0 panel is a mipi panel, it can use in MIPI_TX socket
>> of rk3288 evb board.
>>
>> Signed-off-by: Chris Zhong <zyw at rock-chips.com>
> [...]
>
>> diff --git a/arch/arm/boot/dts/rk3288-evb-act8846.dts
>> b/arch/arm/boot/dts/rk3288-evb-act8846.dts index e662147..7d5475b 100644
>> --- a/arch/arm/boot/dts/rk3288-evb-act8846.dts
>> +++ b/arch/arm/boot/dts/rk3288-evb-act8846.dts
>> @@ -50,6 +50,8 @@
>> gpio = <&gpio7 3 GPIO_ACTIVE_HIGH>;
>> pinctrl-names = "default";
>> pinctrl-0 = <&lcd_en>;
>> + regulator-always-on;
>> + regulator-boot-on;
> Is this only needed for the panel itself and can you try to get the panel
> supplies set up correctly instead in that case please?
It is not only for panel, LCDC_VDD need this supply too.
And rk3288-evb-rk808.dts has set this regulator to always on, so I do
the same thing in here.
>
>
>> regulator-name = "vcc_lcd";
>> vin-supply = <&vcc_io>;
>> };
>> diff --git a/arch/arm/boot/dts/rk3288-evb.dtsi
>> b/arch/arm/boot/dts/rk3288-evb.dtsi index 4faabdb..0c91858 100644
>> --- a/arch/arm/boot/dts/rk3288-evb.dtsi
>> +++ b/arch/arm/boot/dts/rk3288-evb.dtsi
>> @@ -47,7 +47,7 @@
>> reg = <0x0 0x80000000>;
>> };
>>
>> - backlight {
>> + backlight: backlight {
>> compatible = "pwm-backlight";
>> brightness-levels = <
>> 0 1 2 3 4 5 6 7
>> @@ -183,6 +183,16 @@
>> status = "okay";
>> };
>>
>> +&mipi_dsi {
>> + status = "okay";
>> + panel {
>> + compatible ="boe,tv080wum-nl0";
>> + reg = <0>;
>> + backlight = <&backlight>;
>> + status = "okay";
> in the evb-schematics I see, vcc_lcd as supply for the panel.
>
> So I'd think the panel node here should have a
> power-supply = <&vcc_lcd>;
> instead of having the always-on above?
>
>
> Thanks
> Heiko
>
>> + };
>> +};
>> +
>> &sdmmc {
>> bus-width = <4>;
>> cap-mmc-highspeed;
>
>
>
