linux-kernel - Re: [PATCH v1 1/1] iio: proximity: sx_common: Allow IIO core to take care of firmware node

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Message-ID: <20220614115343.057f1e8f@jic23-huawei>
Date:   Tue, 14 Jun 2022 11:53:43 +0100
From:   Jonathan Cameron <jic23@...nel.org>
To:     Andy Shevchenko <andy.shevchenko@...il.com>
Cc:     Gwendal Grignou <gwendal@...omium.org>,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        Jonathan Cameron <Jonathan.Cameron@...wei.com>,
        linux-iio <linux-iio@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Lars-Peter Clausen <lars@...afoo.de>
Subject: Re: [PATCH v1 1/1] iio: proximity: sx_common: Allow IIO core to
 take care of firmware node

On Tue, 14 Jun 2022 11:27:21 +0200
Andy Shevchenko <andy.shevchenko@...il.com> wrote:

> On Mon, Jun 13, 2022 at 11:31 PM Gwendal Grignou <gwendal@...omium.org> wrote:
> >
> > The reason we have the code ACPI_COMPANION_SET and dev.of_node set (by
> > commit 74a53a959028e ("iio:proximity:sx_common: Fix device property
> > parsing on DT systems") from Stephen is we are getting device propery
> > in ->get_default_reg(), which is called in sx_common_init_device(),
> > before devm_iio_device_register().
> >
> > We have the same code path in other driver, like adc/stm32-adc.c,
> > where indio_dev->dev.of_node is set manually to be able to set the
> > resolution based on device tree properties.  
> 
> Ah, thanks for this insight! I will rework the patch accordingly (yes,
> there is something to clean up even in this case).
> 
> > On Fri, Jun 3, 2022 at 9:57 AM Jonathan Cameron <jic23@...nel.org> wrote:  
> > > On Mon, 30 May 2022 20:43:26 +0300
> > > Andy Shevchenko <andriy.shevchenko@...ux.intel.com> wrote:
> > >  
> > > > IIO core correctly will take care of firmware node if it's not set in
> > > > the driver. Drop ACPI and OF specifics from the driver and allow IIO
> > > > core to handle this.
> > > >
> > > > Signed-off-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>  
> > > Looks fine to me.  As such I'll apply it now, but Gwendal, you've
> > > been active with this driver recently so if you have time to sanity check
> > > that would be great.  Once I've caught up with new stuff I plan to check
> > > where we are with your various series on this driver.  
> 
Dropped patch