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From: Andy Shevchenko <andriy.shevchenko@intel.com>
To: Andrey Skvortsov <andrej.skvortzov@gmail.com>
Cc: "Jean-Baptiste Maneyrol" <jean-baptiste.maneyrol@tdk.com>,
	"Jonathan Cameron" <jic23@kernel.org>,
	"David Lechner" <dlechner@baylibre.com>,
	"Nuno Sá" <nuno.sa@analog.com>,
	"Andy Shevchenko" <andy@kernel.org>,
	linux-iio@vger.kernel.org, linux-kernel@vger.kernel.org,
	"Jonathan Marek" <jonathan@marek.ca>,
	"Brian Masney" <masneyb@onstation.org>,
	"Rob Herring" <robh@kernel.org>
Subject: Re: [PATCH v2 2/3] iio: imu: inv_mpu6050: control vdd supply using devm-helpers
Date: Wed, 1 Apr 2026 18:10:16 +0300	[thread overview]
Message-ID: <ac01WETv_jIcYvRL@ashevche-desk.local> (raw)
In-Reply-To: <20260401082737.781018-3-andrej.skvortzov@gmail.com>

On Wed, Apr 01, 2026 at 11:27:36AM +0300, Andrey Skvortsov wrote:
> vdd supply will be automatically disabled on error condition during a
> probe and on driver cleanup. Since the vdd handling is moved to
> devm-helpers, only vddio regulator has to be disabled in the
> driver-specific cleanup action.

...

> -static void inv_mpu_core_disable_regulator_action(void *_data)
> +static void inv_mpu_core_disable_regulator_vddio_action(void *_data)

You can rename now _data --> st...

>  {
>  	struct inv_mpu6050_state *st = _data;

...and drop this.

>  	inv_mpu_core_disable_regulator_vddio(st);
>  }

...

> -	st->vdd_supply = devm_regulator_get(dev, "vdd");
> -	if (IS_ERR(st->vdd_supply))
> -		return dev_err_probe(dev, PTR_ERR(st->vdd_supply),
> -				     "Failed to get vdd regulator\n");
> -
>  	st->vddio_supply = devm_regulator_get(dev, "vddio");
>  	if (IS_ERR(st->vddio_supply))
>  		return dev_err_probe(dev, PTR_ERR(st->vddio_supply),
>  				     "Failed to get vddio regulator\n");
>  
> -	result = regulator_enable(st->vdd_supply);
> -	if (result) {
> -		dev_err(dev, "Failed to enable vdd regulator: %d\n", result);
> -		return result;
> -	}
> +	result = devm_regulator_get_enable(dev, "vdd");
> +	if (result)
> +		return dev_err_probe(dev, result, "Failed to enable vdd regulator\n");

I'm not that expert in regulator framework, but this change might be sensitive.
I dunno if regulator is exclusive or shared and if order of requesting may affect
anything. Just needs careful review from somebody more familiar with that.

-- 
With Best Regards,
Andy Shevchenko



  reply	other threads:[~2026-04-01 15:10 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-04-01  8:27 [PATCH v2 0/3] iio: imu: inv_mpu6050: runtime pm fixes Andrey Skvortsov
2026-04-01  8:27 ` [PATCH v2 1/3] iio: imu: inv_mpu6050: use devres-enabled version of pm_runtime_enable Andrey Skvortsov
2026-04-01 15:00   ` Andy Shevchenko
2026-04-10 23:12   ` David Lechner
2026-04-01  8:27 ` [PATCH v2 2/3] iio: imu: inv_mpu6050: control vdd supply using devm-helpers Andrey Skvortsov
2026-04-01 15:10   ` Andy Shevchenko [this message]
2026-04-06  6:53     ` Andrey Skvortsov
2026-04-06 19:16       ` Andy Shevchenko
2026-04-01  8:27 ` [PATCH v2 3/3] iio: imu: inv_mpu6050: fix unbalanced regulator_disable calls, when probe fails Andrey Skvortsov
2026-04-11 13:22   ` Nuno Sá
2026-04-16 22:21     ` Andrey Skvortsov

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