On Tue, 13 Nov 2018 16:46:33 +0530
Jagan Teki <[email protected]> wrote:

Hi,

I couldn't find a schematic for this board, but some things in here
look inconsistent:

> Amarula A64-Relic board by default bound with Techstar TS8550B
> MIPI-DSI panel, add support for it.
> 
> DSI panel connected via board DSI port with,
> - DC1SW as AVDD supply
> - DCDC2 as DVDD supply

Are you sure of that? That's typically the CPU power supply. Also I
can't find it below. Should that read DLDO2 instead?

> - DCDC1 as VCC-DSI supply

Can't find this below, either. Is it DLDO1?

> - PD24 gpio for reset pin
> - PD23 gpio for backlight enable pin
> 
> Signed-off-by: Jagan Teki <[email protected]>
> ---
>  .../allwinner/sun50i-a64-amarula-relic.dts    | 46
> +++++++++++++++++++ 1 file changed, 46 insertions(+)
> 
> diff --git
> a/arch/arm64/boot/dts/allwinner/sun50i-a64-amarula-relic.dts
> b/arch/arm64/boot/dts/allwinner/sun50i-a64-amarula-relic.dts index
> 6cb2b7f0c817..ecc0d8094815 100644 ---
> a/arch/arm64/boot/dts/allwinner/sun50i-a64-amarula-relic.dts +++
> b/arch/arm64/boot/dts/allwinner/sun50i-a64-amarula-relic.dts @@ -9,6
> +9,7 @@ #include "sun50i-a64.dtsi" 
>  #include <dt-bindings/gpio/gpio.h>
> +#include <dt-bindings/pwm/pwm.h>
>  
>  / {
>       model = "Amarula A64-Relic";
> @@ -18,6 +19,14 @@
>               serial0 = &uart0;
>       };
>  
> +     backlight: backlight {
> +             compatible = "pwm-backlight";
> +             pwms = <&pwm 0 50000 PWM_POLARITY_INVERTED>;
> +             brightness-levels = <1 2 4 8 16 32 64 128 512>;
> +             default-brightness-level = <2>;
> +             enable-gpios = <&pio 3 23 GPIO_ACTIVE_HIGH>; /*
> LCD-BL-EN: PD23 */
> +     };
> +
>       chosen {
>               stdout-path = "serial0:115200n8";
>       };
> @@ -30,6 +39,28 @@
>       };
>  };
>  
> +&de {
> +     status = "okay";
> +};
> +
> +&dphy {
> +     status = "okay";
> +};
> +
> +&dsi {
> +     vcc-dsi-supply = <&reg_dldo1>;

Ah, there we have the SoC DSI power supply I was missing for the
BPi-M64 patch.
But is it DLDO1 or DCDC1, like you wrote above?

> +     status = "okay";
> +
> +     panel@0 {
> +             compatible = "techstar,ts8550b";
> +             reg = <0>;
> +             avdd-supply = <&reg_dc1sw>;
> +             dvdd-supply = <&reg_dldo2>;
> +             reset-gpios = <&pio 3 24 GPIO_ACTIVE_HIGH>; /*
> LCD-RST: PD24 */
> +             backlight = <&backlight>;
> +     };
> +};
> +
>  &ehci0 {
>       status = "okay";
>  };
> @@ -72,6 +103,12 @@
>       status = "okay";
>  };
>  
> +&pwm {
> +     pinctrl-names = "default";
> +     pinctrl-0 = <&pwm_pin>;
> +     status = "okay";
> +};
> +
>  &r_rsb {
>       status = "okay";
>  
> @@ -107,6 +144,15 @@
>       regulator-name = "vcc-pll-avcc";
>  };
>  
> +&reg_dc1sw {
> +     /*
> +      * This regulator also indirectly drives the PD pingroup
> GPIOs,
> +      * which also controls the power LED.
> +      */

Is that true for this board as well or is this just a copy&paste
leftover from the BananaPi-M64? If not, you should loose the
regulator-always-on property.

> +     regulator-always-on;
> +     regulator-name = "vcc-phy";

Shouldn't this be called "vcc-dsi" or so?

Cheers,
Andre.

> +};
> +
>  &reg_dcdc1 {
>       regulator-always-on;
>       regulator-min-microvolt = <3300000>;

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