linux-kernel - Re: [PATCH 3/8] mfd: axp20x: probe axp20x

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Message-ID: <CAGb2v67nD+WAEEyridP1K=k_KgBprWmbNNL7FPdZWv9ZYdrjJg@mail.gmail.com>
Date:   Thu, 7 Dec 2017 16:54:18 +0800
From:   Chen-Yu Tsai <wens@...e.org>
To:     Quentin Schulz <quentin.schulz@...e-electrons.com>
Cc:     Maxime Ripard <maxime.ripard@...e-electrons.com>,
        Sebastian Reichel <sre@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Chen-Yu Tsai <wens@...e.org>,
        Russell King <linux@...linux.org.uk>,
        Jonathan Cameron <jic23@...nel.org>,
        Lee Jones <lee.jones@...aro.org>,
        Hartmut Knaack <knaack.h@....de>,
        Lars-Peter Clausen <lars@...afoo.de>,
        Peter Meerwald-Stadler <pmeerw@...erw.net>,
        "open list:THERMAL" <linux-pm@...r.kernel.org>,
        devicetree <devicetree@...r.kernel.org>,
        linux-kernel <linux-kernel@...r.kernel.org>,
        linux-arm-kernel <linux-arm-kernel@...ts.infradead.org>,
        linux-iio@...r.kernel.org, Icenowy Zheng <icenowy@...c.io>,
        linux-sunxi <linux-sunxi@...glegroups.com>,
        Thomas Petazzoni <thomas.petazzoni@...e-electrons.com>
Subject: Re: [PATCH 3/8] mfd: axp20x: probe axp20x_adc driver for AXP813

On Thu, Dec 7, 2017 at 4:51 PM, Quentin Schulz
<quentin.schulz@...e-electrons.com> wrote:
> Hi Maxime,
>
> On 05/12/2017 09:08, Maxime Ripard wrote:
>> On Mon, Dec 04, 2017 at 03:12:49PM +0100, Quentin Schulz wrote:
>>> This makes the axp20x_adc driver probe with platform device id
>>> "axp813-adc".
>>>
>>> Signed-off-by: Quentin Schulz <quentin.schulz@...e-electrons.com>
>>> ---
>>>  drivers/mfd/axp20x.c | 4 +++-
>>>  1 file changed, 3 insertions(+), 1 deletion(-)
>>>
>>> diff --git a/drivers/mfd/axp20x.c b/drivers/mfd/axp20x.c
>>> index 2468b43..42e54d1 100644
>>> --- a/drivers/mfd/axp20x.c
>>> +++ b/drivers/mfd/axp20x.c
>>> @@ -878,7 +878,9 @@ static struct mfd_cell axp813_cells[] = {
>>>              .resources              = axp803_pek_resources,
>>>      }, {
>>>              .name                   = "axp20x-regulator",
>>> -    }
>>> +    }, {
>>> +            .name                   = "axp813-adc",
>>> +    },
>>
>> Any particular reason you're not adding it to the DT?
>>
>
> No, no particular reason. It's just the way it is currently for AXP209
> and AXP22x so did the same for AXP813.
>
> I'll add DT "support" in next version for all AXPs supported by this
> driver. Or is it worthy of a small separate patch series?

IIRC there's no DT support because there's no need to reference
it in the device tree.

ChenYu