Re: [PATCH v8 6/6] ARM: dts: imx6: RIoTboard provide standby on power off option

[Oleksij Rempel]

On 27.07.2018 11:33, Robin Gong wrote:
> 
> 
>> -----Original Message-----
>> From: Oleksij Rempel [mailto:o.rempel@xxxxxxxxxxxxxx]
>> Sent: 2018年7月26日 17:22
>> To: Shawn Guo <shawnguo@xxxxxxxxxx>; Mark Brown <broonie@xxxxxxxxxx>;
>> Rafael J. Wysocki <rafael.j.wysocki@xxxxxxxxx>
>> Cc: Oleksij Rempel <o.rempel@xxxxxxxxxxxxxx>; kernel@xxxxxxxxxxxxxx;
>> devicetree@xxxxxxxxxxxxxxx; linux-arm-kernel@xxxxxxxxxxxxxxxxxxx;
>> linux-clk@xxxxxxxxxxxxxxx; linux-kernel@xxxxxxxxxxxxxxx; Andrew Morton
>> <akpm@xxxxxxxxxxxxxxxxxxxx>; Liam Girdwood <lgirdwood@xxxxxxxxx>;
>> Leonard Crestez <leonard.crestez@xxxxxxx>; Rob Herring
>> <robh+dt@xxxxxxxxxx>; Mark Rutland <mark.rutland@xxxxxxx>; Michael
>> Turquette <mturquette@xxxxxxxxxxxx>; Stephen Boyd
>> <sboyd@xxxxxxxxxxxxxx>; Fabio Estevam <fabio.estevam@xxxxxxx>; Russell
>> King <linux@xxxxxxxxxxxxxxx>; dl-linux-imx <linux-imx@xxxxxxx>; Robin Gong
>> <yibin.gong@xxxxxxx>; A.s. Dong <aisheng.dong@xxxxxxx>
>> Subject: [PATCH v8 6/6] ARM: dts: imx6: RIoTboard provide standby on power
>> off option
>>
>> This board, as well as some other boards with i.MX6 and a PMIC, uses a
>> "PMIC_STBY_REQ" line to notify the PMIC about a state change.
>> The PMIC is programmed for a specific state change before triggering the line.
>> In this case, PMIC_STBY_REQ can be used for stand by, sleep and power off
>> modes.
>>
>> Signed-off-by: Oleksij Rempel <o.rempel@xxxxxxxxxxxxxx>
>> ---
>>  arch/arm/boot/dts/imx6dl-riotboard.dts | 5 +++++
>>  1 file changed, 5 insertions(+)
>>
>> diff --git a/arch/arm/boot/dts/imx6dl-riotboard.dts
>> b/arch/arm/boot/dts/imx6dl-riotboard.dts
>> index 2e98c92adff7..a0e9753ee767 100644
>> --- a/arch/arm/boot/dts/imx6dl-riotboard.dts
>> +++ b/arch/arm/boot/dts/imx6dl-riotboard.dts
>> @@ -90,6 +90,10 @@
>>  	status = "okay";
>>  };
>>
>> +&clks {
>> +	fsl,pmic-stby-poweroff;
>> +};
> It's better remove the default "syscon-poweroff" power off node.

"syscon-poweroff" is by default disabled and not enabled in
arch/arm/boot/dts/imx6dl-riotboard.dts

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