[PATCH v2 1/2] ARM64: dts: meson-gxbb: add MMC support
Kevin Hilman
khilman at baylibre.com
Thu Aug 4 15:58:55 PDT 2016
Hi Rob,
Rob Herring <robh at kernel.org> writes:
> On Wed, Aug 03, 2016 at 04:18:42PM -0700, Kevin Hilman wrote:
>> Add binding and basic support for the SD/eMMC controller on Amlogic
>> S905/GXBB devices.
>>
>> Signed-off-by: Kevin Hilman <khilman at baylibre.com>
[...]
>> + mmc_iv: gpio-regulator {
>> + compatible = "regulator-gpio";
>> +
>> + regulator-name = "mmc-gpio-supply";
>> + regulator-min-microvolt = <1800000>;
>> + regulator-max-microvolt = <3300000>;
>> +
>> + gpios = <&gpio_ao GPIOAO_3 GPIO_ACTIVE_HIGH>;
>> + gpio-states = <0 1>;
>> +
>> + /*
>> + * Based on ODROID-C2 schematics:
>> + * signal name: IO_TF_3V3N_1V8, GPIOAO bit 3
>> + */
>> + states = <3300000 0
>> + 1800000 1>;
>
> There are multiple things wrong in this node based on the regulator-gpio
> documentation.
I see I got the property name wrong, and the number of elements wrong,
and this fixes those issues:
- gpio-states = <0 1>;
+ gpios-states = <0>;
By "multiple", did you mean more than those 2? If so, I'm not seeing
what else is wrong.
[...]
>> + mmc_iv: gpio-regulator {
>> + compatible = "regulator-gpio";
>> +
>> + regulator-name = "mmc-gpio-supply";
>> + regulator-min-microvolt = <1800000>;
>> + regulator-max-microvolt = <3300000>;
>> +
>> + gpios = <&gpio_ao GPIOAO_5 GPIO_ACTIVE_HIGH>;
>> + gpio-states = <0 1>;
>> +
>> + /* Based on P200 schematics, signal CARD_1.8V/3.3V_CTR */
>> + states = <1800000 0
>> + 3300000 1>;
>> + };
>> +
>> + vddio_boot: regulator {
> [...]
>> + vcc_3v3: regulator {
>
> This won't even compile as you have the same node name twice.
Oops, it's wrong indeed, but in fact, it does compile, otherwise I
would've caught that.. Even if I remove the labels, it still compiles.
Interesting.
Anyways, I'll make those unique node-names in the next spin.
Thanks for the review,
Kevin
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