2017-01-19 17:58 GMT+08:00 Heiko Stuebner <heiko@xxxxxxxxx>:
> Hi Eddie,
>
> Am Donnerstag, 19. Januar 2017, 10:11:59 CET schrieb Eddie Cai:
>> This patch add basic support for RK3288-Tinker board. We can boot in to
>> rootfs with this patch.
>>
>> Signed-off-by: Eddie Cai <eddie.cai@xxxxxxxxxxxxxx>
>
> looks good in general, just some small question down below.
>
> [...]
>
>> + /*
>> + * NOTE: vcc_sd isn't hooked up on v1.0 boards where power comes from
>> + * vcc_io directly. Those boards won't be able to power cycle SD cards
>> + * but it shouldn't hurt to toggle this pin there anyway.
>> + */
>
> just to clarify, later board will have that pin connected, right?
Copy from rk3288-evb.dtsi. forgot to delete it. I will remove it in next version
>
>> + vcc_sd: sdmmc-regulator {
>> + compatible = "regulator-fixed";
>> + gpio = <&gpio7 11 GPIO_ACTIVE_LOW>;
>> + pinctrl-names = "default";
>> + pinctrl-0 = <&sdmmc_pwr>;
>> + regulator-name = "vcc_sd";
>> + regulator-min-microvolt = <3300000>;
>> + regulator-max-microvolt = <3300000>;
>> + startup-delay-us = <100000>;
>> + vin-supply = <&vcc_io>;
>> + };
>> +};
>
> [...]
>
>> +&hdmi {
>> + #address-cells = <1>;
>> + #size-cells = <0>;
>> + #sound-dai-cells = <0>;
>> + ddc-i2c-bus = <&i2c5>;
>> + status = "okay";
>> + /* Don't use vopl for HDMI */
>> + ports {
>> + hdmi_in: port {
>> + /delete-node/ endpoint@1;
>> + };
>
> what is the reason for this? You enable both VOPs below and the linux display
> subsystem should be able to select an appropriate VOP for output just fine on
> its own. So there should be no reason for capping the hdmi's connection to one
> of the vops.
The VOP big support 4k display. is designed for HDMI 4K display. VOP
little is for other display(eDP, LVDS, Mipi etc)
>
>> + };
>> +};
>
> [...]
>
>> +&usb_host0_ehci {
>> + no-relinquish-port;
>
> This seems like an unused/undocumented property
I will remove it in next version
>
>> + status = "okay";
>> +};
>
> [...]
>
>> +&vopl {
>> + status = "okay";
>> + /* Don't use vopl for HDMI */
>> + vopl_out: port {
>> + /delete-node/ endpoint@0;
>> + };
>
> see comment at the hdmi node
>
>> +};
>
>
> Thanks
> Heiko
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