Hi Andrej,
[Restoring Cc-list]
On 05.07.23 10:18, Andrej Picej wrote:
> Hi Ahmad,
>
> On 4. 07. 23 10:15, Ahmad Fatoum wrote:
>> Hello Andrej,
>>
>> On 04.07.23 10:03, Andrej Picej wrote:
>>> If regulator is not marked as always-on the regulator gets disabled on
>>> reboot breaking the next boot.
>>
>> While this is ok as a fix, the real issue is that your system reset doesn't
>> restore PMIC rails to a good state. Are you perhaps doing a SoC-internal
>> reset only or have the PMIC misconfigured?
>
> yes I would agree, this is just a fix since system reset doesn't reset the PMIC, leaving the configuration as it is in a misconfigured state. The i.MX6 reset is done with imx watchdog.
If PMIC doesn't have own watchdog, i.MX watchdog can be configured to toggle
WDOG_B line, which may be routed to PMIC.
But fix is ok for now:
Acked-by: Ahmad Fatoum <a.fatoum@xxxxxxxxxxxxxx>
Cheers,
Ahmad
>
> Best regards,
> Andrej
>
>>
>> Cheers,
>> Ahmad
>>
>>>
>>> Signed-off-by: Andrej Picej <andrej.picej@xxxxxxxxx>
>>> ---
>>> arch/arm/boot/dts/imx6qdl-phytec-pfla02.dtsi | 1 +
>>> 1 file changed, 1 insertion(+)
>>>
>>> diff --git a/arch/arm/boot/dts/imx6qdl-phytec-pfla02.dtsi b/arch/arm/boot/dts/imx6qdl-phytec-pfla02.dtsi
>>> index 80adb2a02cc9..25d6a036d5b8 100644
>>> --- a/arch/arm/boot/dts/imx6qdl-phytec-pfla02.dtsi
>>> +++ b/arch/arm/boot/dts/imx6qdl-phytec-pfla02.dtsi
>>> @@ -192,6 +192,7 @@ vdd_3v3_pmic_io_reg: ldo6 {
>>> vdd_sd0_reg: ldo9 {
>>> regulator-min-microvolt = <3300000>;
>>> regulator-max-microvolt = <3300000>;
>>> + regulator-always-on;
>>> };
>>> vdd_sd1_reg: ldo10 {
>>
>
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