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From: Andy Shevchenko <andriy.shevchenko@intel.com>
To: Prashant Rahul <prashantrahul23@gmail.com>
Cc: "Jonathan Cameron" <jic23@kernel.org>,
	linux-iio@vger.kernel.org, "Shuah Khan" <shuahkhan@gmail.com>,
	"David Lechner" <dlechner@baylibre.com>,
	"Nuno Sá" <nuno.sa@analog.com>,
	"Andy Shevchenko" <andy@kernel.org>,
	"Petr Mladek" <pmladek@suse.com>,
	"Krzysztof Kozlowski" <krzk@kernel.org>,
	"John Ogness" <john.ogness@linutronix.de>,
	"Oleg Nesterov" <oleg@redhat.com>,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH] iio: adc: ti-adc12138: fail init on calibration timeout
Date: Mon, 15 Jun 2026 16:54:53 +0300	[thread overview]
Message-ID: <ajAELZtaZXV1UL-A@ashevche-desk.local> (raw)
In-Reply-To: <20260615111156.199906-1-prashantrahul23@gmail.com>

On Mon, Jun 15, 2026 at 04:39:13PM +0530, Prashant Rahul wrote:
> adc12138_init() starts device calibration and waits for the EOC
> interrupt before checking the calibration status. The wait helper
> returns -ETIMEDOUT if the interrupt does not arrive in time, but the
> init path ignores the error and continues probing the device. This could
> lead to registering the device even tho it may not be properly
> initialized.
> 
> Return the wait error so probe fails cleanly when calibration does not
> complete.

...

> +	ret = adc12138_wait_eoc(adc, msecs_to_jiffies(100));
> +	if (ret) {
> +		dev_warn(&adc->spi->dev, "wait eoc timeout\n");

> +		return ret;

		return dev_warn_probe(...);

> +	}

-- 
With Best Regards,
Andy Shevchenko



      parent reply	other threads:[~2026-06-15 13:54 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-06-15 11:09 Prashant Rahul
2026-06-15 12:12 ` John Ogness
2026-06-16 10:14   ` Prashant Rahul
2026-06-15 13:54 ` Andy Shevchenko [this message]

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