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Fri, 15 Oct 2021 08:36:26 -0500 Received: from EDIEX01.ad.cirrus.com (198.61.84.80) by EDIEX01.ad.cirrus.com (198.61.84.80) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.7; Fri, 15 Oct 2021 14:36:24 +0100 Received: from ediswmail.ad.cirrus.com (198.61.86.93) by EDIEX01.ad.cirrus.com (198.61.84.80) with Microsoft SMTP Server id 15.1.2375.7 via Frontend Transport; Fri, 15 Oct 2021 14:36:24 +0100 Received: from AUSNPC0LSNW1-debian.cirrus.com (AUSNPC0LSNW1.ad.cirrus.com [198.61.65.254]) by ediswmail.ad.cirrus.com (Postfix) with ESMTP id F1A8711DA; Fri, 15 Oct 2021 13:36:23 +0000 (UTC) From: Richard Fitzgerald To: Subject: [PATCH 08/16] ASoC: cs42l42: Reset and power-down on driver remove() Date: Fri, 15 Oct 2021 14:36:11 +0100 Message-ID: <20211015133619.4698-9-rf@opensource.cirrus.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20211015133619.4698-1-rf@opensource.cirrus.com> References: <20211015133619.4698-1-rf@opensource.cirrus.com> MIME-Version: 1.0 X-Proofpoint-ORIG-GUID: Ce7s5-7Zf4TaXYo3ZYuPwDgxZtZhWw8q X-Proofpoint-GUID: Ce7s5-7Zf4TaXYo3ZYuPwDgxZtZhWw8q X-Proofpoint-Spam-Reason: safe Cc: patches@opensource.cirrus.com, alsa-devel@alsa-project.org, Richard Fitzgerald , linux-kernel@vger.kernel.org X-BeenThere: alsa-devel@alsa-project.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: "Alsa-devel mailing list for ALSA developers - http://www.alsa-project.org" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: alsa-devel-bounces@alsa-project.org Sender: "Alsa-devel" Driver remove() should assert RESET and disable the supplies. Previously this assumed that calling pm_runtime_suspend() would result in a call to cs42l42_runtime_suspend() to power-down. This isn't guaranteed - pm_runtime can be disabled. Signed-off-by: Richard Fitzgerald Fixes: 2b869e0ea598 ("ASoC: cs42l42: Remove power if the driver is being removed") --- sound/soc/codecs/cs42l42.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/sound/soc/codecs/cs42l42.c b/sound/soc/codecs/cs42l42.c index 420e16563c45..cf1f68474d21 100644 --- a/sound/soc/codecs/cs42l42.c +++ b/sound/soc/codecs/cs42l42.c @@ -2131,6 +2131,9 @@ static int cs42l42_i2c_remove(struct i2c_client *i2c_client) pm_runtime_suspend(&i2c_client->dev); pm_runtime_disable(&i2c_client->dev); + gpiod_set_value_cansleep(cs42l42->reset_gpio, 0); + regulator_bulk_disable(ARRAY_SIZE(cs42l42->supplies), cs42l42->supplies); + return 0; }