Re: [PATCH v3 3/3] ARM: dts: Specify VMMC and VQMMC on rk3288-evb

[Doug Anderson]

Heiko,

On Tue, Jan 6, 2015 at 9:44 AM, Heiko StÃbner <heiko@xxxxxxxxx> wrote:
> Hi Doug,
>
> Am Montag, 15. Dezember 2014, 16:22:20 schrieb Doug Anderson:
>> Specifying these rails should eventually let us do UHS.
>>
>> Signed-off-by: Doug Anderson <dianders@xxxxxxxxxxxx>
>> ---
>> Changes in v3: None
>> Changes in v2:
>> - Fix subject line
>>
>>  arch/arm/boot/dts/rk3288-evb.dtsi | 2 ++
>>  1 file changed, 2 insertions(+)
>>
>> diff --git a/arch/arm/boot/dts/rk3288-evb.dtsi
>> b/arch/arm/boot/dts/rk3288-evb.dtsi index 3e067dd..d660fe6 100644
>> --- a/arch/arm/boot/dts/rk3288-evb.dtsi
>> +++ b/arch/arm/boot/dts/rk3288-evb.dtsi
>> @@ -114,6 +114,8 @@
>>       pinctrl-names = "default";
>>       pinctrl-0 = <&sdmmc_clk &sdmmc_cmd &sdmmc_cd &sdmmc_bus4>;
>>       status = "okay";
>> +     vmmc-supply = <&vcc_io>;
>
> according to the schematics there is a switch between the card and vcc_io with
> a controlling pin called SDMMC_PWR providing a supply called vcc_sd.
>
> So there should probably be a fixed-regulator get introduced for this, like the
> older rockchip boards do.

OK, I found the problem.  I've got a 1.0 board and the associated
schematics.  Supporting your 2.0 board with the extra regulator should
be no problem though.

Patch coming up shortly.

-Doug
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