From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id CA3EE268C79; Tue, 8 Apr 2025 11:25:59 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1744111559; cv=none; b=J5T29Pi2i+N+ElmS897eEwCIXayqfgfLRMvSO6GzD7xYpvrAK4aS+O55qk488Nzbg8YsNiHJOf0JcJVY7lVFQct85JBN18wBOGOYeHykGBQpy2c9YMUxW0syOJYoxleJ9wxivvomFkDMTLUgUhFluUXq4aaRKHM508aupM4KOA4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1744111559; c=relaxed/simple; bh=C2d3qwvgSyj0Rn6WFNxFuEvGbp+8yTaPgofXDTmiZmI=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=V3npE4rvWY3Fm43RYojQvFM9SOEm/RUxQWpXgy4MHjGk27+9rnRrHZLuc/BnCf/RhHijQiPYZgJBrVlgZU26Qq1X9El53etrligsPFpGjMO+XDlVoky4ydqx34HOltZSRfp/b9w79jxb96v9rs3ZiDzNYbmt4z6+mvvhJSm3tPQ= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=kM0nsa0Q; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="kM0nsa0Q" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 5359CC4CEE5; Tue, 8 Apr 2025 11:25:59 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1744111559; bh=C2d3qwvgSyj0Rn6WFNxFuEvGbp+8yTaPgofXDTmiZmI=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=kM0nsa0QU3uTR1IDlINhdIwbPh4mBAvdJ625Q3dPI17yDOKtkmHYYY1LlIsLNz6Lm /3gy0aAx2sJZoRzWJ/DjOYaKg1oGhO+kGGz/QKnxOmIYkiaoDXYkpTzLPSeW2iqnDH DDOvUv6gyY2rkGs+oata1gLect77UU59z0/hAEk0= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, =?UTF-8?q?Uwe=20Kleine-K=C3=B6nig?= , Jonathan Cameron , Sasha Levin Subject: [PATCH 6.14 476/731] iio: adc: ad7192: Grab direct mode for calibration Date: Tue, 8 Apr 2025 12:46:13 +0200 Message-ID: <20250408104925.349704052@linuxfoundation.org> X-Mailer: git-send-email 2.49.0 In-Reply-To: <20250408104914.247897328@linuxfoundation.org> References: <20250408104914.247897328@linuxfoundation.org> User-Agent: quilt/0.68 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 6.14-stable review patch. If anyone has any objections, please let me know. ------------------ From: Uwe Kleine-König [ Upstream commit 08808b3ef384974b1eaf4975de707f93f8cda62d ] While a calibration is running, better don't make the device do anything else. To enforce that, grab direct mode during calibration. Fixes: 42776c14c692 ("staging: iio: adc: ad7192: Add system calibration support") Signed-off-by: Uwe Kleine-König Link: https://patch.msgid.link/8aade802afca6a89641e24c1ae1d4b8d82cff58d.1740655250.git.u.kleine-koenig@baylibre.com Signed-off-by: Jonathan Cameron Signed-off-by: Sasha Levin --- drivers/iio/adc/ad7192.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/iio/adc/ad7192.c b/drivers/iio/adc/ad7192.c index cfaf8f7e0a07d..1ebb738d99f57 100644 --- a/drivers/iio/adc/ad7192.c +++ b/drivers/iio/adc/ad7192.c @@ -256,6 +256,9 @@ static ssize_t ad7192_write_syscalib(struct iio_dev *indio_dev, if (ret) return ret; + if (!iio_device_claim_direct(indio_dev)) + return -EBUSY; + temp = st->syscalib_mode[chan->channel]; if (sys_calib) { if (temp == AD7192_SYSCALIB_ZERO_SCALE) @@ -266,6 +269,8 @@ static ssize_t ad7192_write_syscalib(struct iio_dev *indio_dev, chan->address); } + iio_device_release_direct(indio_dev); + return ret ? ret : len; } -- 2.39.5