linux-kernel - Re: [PATCH v3 2/2] mfd: rk808: Prepare rk805 for poweroff

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Date:   Wed, 12 Jun 2019 10:41:42 +0100
From:   Lee Jones <lee.jones@...aro.org>
To:     Stefan Mavrodiev <stefan@...mex.com>
Cc:     Heiko Stuebner <heiko@...ech.de>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 2/2] mfd: rk808: Prepare rk805 for poweroff

On Fri, 07 Jun 2019, Stefan Mavrodiev wrote:

> RK805 has SLEEP signal, which can put the device into SLEEP or OFF
> mode. The default is SLEEP mode.
> 
> However, when the kernel performs power-off (actually the ATF) the
> device will not go fully off and this will result in higher power
> consumption and inability to wake the device with RTC alarm.
> 
> The solution is to enable pm_power_off_prepare function, which will
> configure SLEEP pin for OFF function.
> 
> Signed-off-by: Stefan Mavrodiev <stefan@...mex.com>
> ---
> Change for v3:
>  - Remove useless warning messages
>  - Change poweroff error messages
>  - Add explanation comments
> Changes for v2:
>  - Move pm_pwroff_prep_fn to header
>  - Check pm_power_off_prepare before make it NULL
> 
>  drivers/mfd/rk808.c       | 50 +++++++++++++++++++++++++++------------
>  include/linux/mfd/rk808.h |  1 +
>  2 files changed, 36 insertions(+), 15 deletions(-)

Applied, thanks.

-- 
Lee Jones [李琼斯]
Linaro Services Technical Lead
Linaro.org │ Open source software for ARM SoCs
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