On 24/05/17 09:17, Heiko Stuebner wrote:
> Hi Eddie,
>
> Am Mittwoch, 24. Mai 2017, 15:33:41 CEST schrieb Eddie Cai:
>> the previous setting of act8846 is just copy from firefly board. but
>> the reload board is a little different from firefly board. let's correct
>> it.
>>
>> Signed-off-by: Eddie Cai <eddie.cai.li...@gmail.com>
>> ---
>> arch/arm/boot/dts/rk3288-firefly-reload-core.dtsi | 21 +++++++++++----------
>> 1 file changed, 11 insertions(+), 10 deletions(-)
>>
>> diff --git a/arch/arm/boot/dts/rk3288-firefly-reload-core.dtsi
>> b/arch/arm/boot/dts/rk3288-firefly-reload-core.dtsi
>> index 8134966..4cfa109 100644
>> --- a/arch/arm/boot/dts/rk3288-firefly-reload-core.dtsi
>> +++ b/arch/arm/boot/dts/rk3288-firefly-reload-core.dtsi
>> @@ -179,6 +179,7 @@
>> regulator-name = "vccio_sd";
>> regulator-min-microvolt = <3300000>;
>> regulator-max-microvolt = <3300000>;
>> + regulator-always-on;
>
> the rest below looks pretty straight forward, but why does vccio_sd
> need to be always on?
>
> I've checked the reload's schematics but did not find any further users
> of vccio_sd that may warant this attribute.
It looks like the card detect line is pulled up externally to vcc_sd,
which isn't always-on either, so you probably do want this - on the
(unrelated) rk3288 TV box I've been hacking on, I discovered that
powering off the sdmmc-supply domain also kills the internal pull-up and
leaves sdmmc_cd floating. The resulting stochastic card polling
mechanism is amusing, but probably undesirable ;)
Robin.
>
>
> Heiko
>
>
>> };
>>
>> vdd10_lcd: REG6 {
>> @@ -187,24 +188,23 @@
>> regulator-max-microvolt = <1000000>;
>> };
>>
>> - vcca_18: REG7 {
>> - regulator-name = "vcca_18";
>> - regulator-min-microvolt = <1800000>;
>> - regulator-max-microvolt = <1800000>;
>> - regulator-always-on;
>> + vcca_33: REG7 {
>> + regulator-name = "vcca_33";
>> + regulator-min-microvolt = <3300000>;
>> + regulator-max-microvolt = <3300000>;
>> };
>>
>> - vcca_33: REG8 {
>> - regulator-name = "vcca_33";
>> + vcc_lan: REG8 {
>> + regulator-name = "vcc_lan";
>> regulator-min-microvolt = <3300000>;
>> regulator-max-microvolt = <3300000>;
>> - regulator-always-on;
>> };
>>
>> - vcc_lan: REG9 {
>> - regulator-name = "vcca_lan";
>> + vccio_pmu: REG9 {
>> + regulator-name = "vccio_pmu";
>> regulator-min-microvolt = <3300000>;
>> regulator-max-microvolt = <3300000>;
>> + regulator-always-on;
>> };
>>
>> vdd_10: REG10 {
>> @@ -218,6 +218,7 @@
>> regulator-name = "vcc_18";
>> regulator-min-microvolt = <1800000>;
>> regulator-max-microvolt = <1800000>;
>> + regulator-always-on;
>> };
>>
>> vcc18_lcd: REG12 {
>>
>
>
>
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