linux-kernel - Re: [PATCH 16/22] mfd: axp20x: add V_OFF to writeable regs for AXP20X and AXP22X

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Date:   Thu, 5 Jan 2017 14:02:40 +0800
From:   Chen-Yu Tsai <wens@...e.org>
To:     Lee Jones <lee.jones@...aro.org>
Cc:     Quentin Schulz <quentin.schulz@...e-electrons.com>,
        Jonathan Cameron <jic23@...nel.org>, knaack.h@....de,
        Lars-Peter Clausen <lars@...afoo.de>,
        Peter Meerwald-Stadler <pmeerw@...erw.net>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Chen-Yu Tsai <wens@...e.org>,
        Sebastian Reichel <sre@...nel.org>,
        Russell King <linux@...linux.org.uk>,
        Maxime Ripard <maxime.ripard@...e-electrons.com>,
        linux-iio@...r.kernel.org, devicetree <devicetree@...r.kernel.org>,
        linux-kernel <linux-kernel@...r.kernel.org>,
        "open list:THERMAL" <linux-pm@...r.kernel.org>,
        linux-arm-kernel <linux-arm-kernel@...ts.infradead.org>,
        Thomas Petazzoni <thomas.petazzoni@...e-electrons.com>,
        Icenowy Zheng <icenowy@...c.xyz>,
        Bruno Prémont <bonbons@...ux-vserver.org>
Subject: Re: [PATCH 16/22] mfd: axp20x: add V_OFF to writeable regs for AXP20X
 and AXP22X

On Wed, Jan 4, 2017 at 7:57 PM, Lee Jones <lee.jones@...aro.org> wrote:
> On Mon, 02 Jan 2017, Quentin Schulz wrote:
>
>> The V_OFF register has its first 3 read-write bits for the minimal
>> voltage (Voff) of the battery before the system is automatically shut
>> down due to the power being too low.
>>
>> This adds V_OFF register to the writeable registers of AXP20X and AXP22X
>> PMICs.
>>
>> Signed-off-by: Quentin Schulz <quentin.schulz@...e-electrons.com>
>> ---
>>  drivers/mfd/axp20x.c | 4 ++--
>>  1 file changed, 2 insertions(+), 2 deletions(-)
>
> For my own reference:
>   Acked-for-MFD-by: Lee Jones <lee.jones@...aro.org>

Acked-by: Chen-Yu Tsai <wens@...e.org>

>
>> diff --git a/drivers/mfd/axp20x.c b/drivers/mfd/axp20x.c
>> index 19bdba3..7f0f05f 100644
>> --- a/drivers/mfd/axp20x.c
>> +++ b/drivers/mfd/axp20x.c
>> @@ -65,7 +65,7 @@ static const struct regmap_access_table axp152_volatile_table = {
>>
>>  static const struct regmap_range axp20x_writeable_ranges[] = {
>>       regmap_reg_range(AXP20X_DATACACHE(0), AXP20X_IRQ5_STATE),
>> -     regmap_reg_range(AXP20X_VBUS_IPSOUT_MGMT, AXP20X_VBUS_IPSOUT_MGMT),
>> +     regmap_reg_range(AXP20X_VBUS_IPSOUT_MGMT, AXP20X_V_OFF),
>>       regmap_reg_range(AXP20X_CHRG_CTRL1, AXP20X_CHRG_CTRL1),
>>       regmap_reg_range(AXP20X_DCDC_MODE, AXP20X_FG_RES),
>>       regmap_reg_range(AXP20X_RDC_H, AXP20X_OCV(AXP20X_OCV_MAX)),
>> @@ -94,7 +94,7 @@ static const struct regmap_access_table axp20x_volatile_table = {
>>  /* AXP22x ranges are shared with the AXP809, as they cover the same range */
>>  static const struct regmap_range axp22x_writeable_ranges[] = {
>>       regmap_reg_range(AXP20X_DATACACHE(0), AXP20X_IRQ5_STATE),
>> -     regmap_reg_range(AXP20X_VBUS_IPSOUT_MGMT, AXP20X_VBUS_IPSOUT_MGMT),
>> +     regmap_reg_range(AXP20X_VBUS_IPSOUT_MGMT, AXP20X_V_OFF),
>>       regmap_reg_range(AXP20X_CHRG_CTRL1, AXP20X_CHRG_CTRL1),
>>       regmap_reg_range(AXP20X_DCDC_MODE, AXP22X_BATLOW_THRES1),
>>  };
>
> --
> Lee Jones
> Linaro STMicroelectronics Landing Team Lead
> Linaro.org │ Open source software for ARM SoCs
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