[PATCH V3] arm64: dts: r8a77990: ebisu: Add and enable SDHI device nodes

Marek Vasut
2018-11-20T23:18:51Z

On 11/20/2018 11:16 AM, Geert Uytterhoeven wrote:
> Hi Marek,

Hi,

> On Tue, Nov 6, 2018 at 9:46 PM Marek Vasut <marek.vasut@gmail.com> wrote:
>> From: Takeshi Kihara <takeshi.kihara.df@renesas.com>
>>
>> This patch adds SDHI{0,1,3} device nodes for the r8a77990 SoC
>> and enables SD card slot connected to SDHI0, micro SD card slot
>> connected to SDHI1 and eMMC connected to SDHI3 on the Ebisu board
>> using the R8A77990 SoC.
>>
>> Signed-off-by: Takeshi Kihara <takeshi.kihara.df@renesas.com>
>> Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
>
>> --- a/arch/arm64/boot/dts/renesas/r8a77990-ebisu.dts
>> +++ b/arch/arm64/boot/dts/renesas/r8a77990-ebisu.dts
>> @@ -129,6 +129,15 @@
>> };
>> };
>>
>> + reg_1p8v: regulator0 {
>> + compatible = "regulator-fixed";
>> + regulator-name = "fixed-1.8V";
>> + regulator-min-microvolt = <1800000>;
>> + regulator-max-microvolt = <1800000>;
>> + regulator-boot-on;
>> + regulator-always-on;
>> + };
>> +
>> reg_3p3v: regulator1 {
>> compatible = "regulator-fixed";
>> regulator-name = "fixed-3.3V";
>> @@ -180,6 +189,54 @@
>> #clock-cells = <0>;
>> clock-frequency = <74250000>;
>> };
>> +
>> + vcc_sdhi0: regulator-vcc-sdhi0 {
>> + compatible = "regulator-fixed";
>> +
>> + regulator-name = "SDHI0 Vcc";
>> + regulator-min-microvolt = <3300000>;
>> + regulator-max-microvolt = <3300000>;
>> +
>> + gpio = <&gpio5 17 GPIO_ACTIVE_HIGH>;
>> + enable-active-high;
>> + };
>> +
>> + vccq_sdhi0: regulator-vccq-sdhi0 {
>> + compatible = "regulator-gpio";
>> +
>> + regulator-name = "SDHI0 VccQ";
>> + regulator-min-microvolt = <1800000>;
>> + regulator-max-microvolt = <3300000>;
>> +
>> + gpios = <&gpio5 18 GPIO_ACTIVE_HIGH>;
>> + gpios-states = <1>;
>> + states = <3300000 1
>> + 1800000 0>;
>
> I know this is how it's done in the example in
> Documentation/devicetree/bindings/regulator/gpio-regulator.txt,
> but usually brackets are used to group tuples, like:
>
> states = <3300000 1>, <1800000 0>;
>
> Perhaps the example should be changed?

Well, looking through the DTS, I don't see anyone using tuples for the
GPIO regulator states. Then again, it could be updated.

+CC Mark and Liam, let's see what their opinion on changing that is.

--
Best regards,
Marek Vasut