From patchwork Wed Jul 31 07:02:42 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Umang Jain X-Patchwork-Id: 13748218 Received: from perceval.ideasonboard.com (perceval.ideasonboard.com [213.167.242.64]) (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 DC7675464A for ; Wed, 31 Jul 2024 07:03:06 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=213.167.242.64 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1722409388; cv=none; b=Id1/K2FxC67VPalmVt0xlyOUee/3Us3sYztTRMRcK3OZQB98VoOsAAg6HAoXJSfL8oJtArZe1mPDPtXLLYSmugVb8d2lzQQhM1do2J8fAwGMtJgLbOTgL0DKhgpGko4DOEKAAQggHE61CL75ibavLyDM1hjhvghlVlHM+EEy8Zg= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1722409388; c=relaxed/simple; bh=dkOkY+B0/cyoFmPI2OdnhUFer6WrrHex+z/Q5THTpcg=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=n+OqnW2hrB9Jff8G09ykiAIvt07Z66S2PJdAguo/eeTgK5UgfeerU46SvqDzuKu3/w2du4+BV7Im1H1W0LphbPmWiaQzAvAoHmkXz+mr7SFjKCU8iifb2EtVeFKRSfiRqR81Kdcrlh79H5QtUgNDYugm2M00JjI/vL5nirStgIk= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=ideasonboard.com; spf=pass smtp.mailfrom=ideasonboard.com; dkim=pass (1024-bit key) header.d=ideasonboard.com header.i=@ideasonboard.com header.b=g128npLw; arc=none smtp.client-ip=213.167.242.64 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=ideasonboard.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=ideasonboard.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=ideasonboard.com header.i=@ideasonboard.com header.b="g128npLw" Received: from [192.168.29.25] (unknown [IPv6:2405:201:2015:f873:55f8:639e:8e9f:12ec]) by perceval.ideasonboard.com (Postfix) with ESMTPSA id 27D75144C; Wed, 31 Jul 2024 09:02:15 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com; s=mail; t=1722409338; bh=dkOkY+B0/cyoFmPI2OdnhUFer6WrrHex+z/Q5THTpcg=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=g128npLwemLjujaENCfvYbZAzH0yaq505ZO47BvznBeJuY8ByKKgpQjun9DvJAH+X vRsgOijAyIuACJgzSTglgunqAoinEoAOiPwwkYL23vBdztC2kUd0VJmHgcQ/NXNJiO g56i0aDRPF5Vm+DijExQ3ZMg1bAUwbychKQhvy3Q= From: Umang Jain Date: Wed, 31 Jul 2024 12:32:42 +0530 Subject: [PATCH v3 2/2] media: imx335: Fix reset-gpio handling Precedence: bulk X-Mailing-List: imx@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20240731-imx335-gpio-v3-2-443bfa6ce864@ideasonboard.com> References: <20240731-imx335-gpio-v3-0-443bfa6ce864@ideasonboard.com> In-Reply-To: <20240731-imx335-gpio-v3-0-443bfa6ce864@ideasonboard.com> To: Mauro Carvalho Chehab , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Shawn Guo , Sascha Hauer , Pengutronix Kernel Team , Fabio Estevam , "Paul J. Murphy" , Daniele Alessandrelli , Sakari Ailus , Martina Krasteva Cc: linux-media@vger.kernel.org, devicetree@vger.kernel.org, imx@lists.linux.dev, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Mauro Carvalho Chehab , Kieran Bingham , Sakari Ailus , Laurent Pinchart , Umang Jain , stable@vger.kernel.org X-Mailer: b4 0.13.0 X-Developer-Signature: v=1; a=ed25519-sha256; t=1722409375; l=2193; i=umang.jain@ideasonboard.com; s=20240731; h=from:subject:message-id; bh=dkOkY+B0/cyoFmPI2OdnhUFer6WrrHex+z/Q5THTpcg=; b=aHtk6nfQ3/4g+Uszq64ruRfgME2MRH39/fIvSRh1R2OI7mMpDTXr1wj+1g1Ij1Ps/Nip+4iH0 aS/nPto3/NQCEbI6EgL2sS41b8imnpNFN7wOq4hc4zDHN9rWKclibHr X-Developer-Key: i=umang.jain@ideasonboard.com; a=ed25519; pk=7pvnIBNsDpFUMiph0Vlhrr01+rAn5fSIn/QtDeLeXL0= Rectify the logical value of reset-gpio so that it is set to 0 (disabled) during power-on and to 1 (enabled) during power-off. Meanwhile at it, set the reset-gpio to GPIO_OUT_HIGH at initialization time to make sure it starts off in reset. Also drop the "Set XCLR" comment which is not-so-informative. Cc: stable@vger.kernel.org Fixes: 45d19b5fb9ae ("media: i2c: Add imx335 camera sensor driver") Reviewed-by: Laurent Pinchart Signed-off-by: Umang Jain --- drivers/media/i2c/imx335.c | 9 ++++----- 1 file changed, 4 insertions(+), 5 deletions(-) diff --git a/drivers/media/i2c/imx335.c b/drivers/media/i2c/imx335.c index cd150606a8a9..79b6d60bf6af 100644 --- a/drivers/media/i2c/imx335.c +++ b/drivers/media/i2c/imx335.c @@ -1057,7 +1057,7 @@ static int imx335_parse_hw_config(struct imx335 *imx335) /* Request optional reset pin */ imx335->reset_gpio = devm_gpiod_get_optional(imx335->dev, "reset", - GPIOD_OUT_LOW); + GPIOD_OUT_HIGH); if (IS_ERR(imx335->reset_gpio)) { dev_err(imx335->dev, "failed to get reset gpio %ld\n", PTR_ERR(imx335->reset_gpio)); @@ -1170,8 +1170,7 @@ static int imx335_power_on(struct device *dev) usleep_range(500, 550); /* Tlow */ - /* Set XCLR */ - gpiod_set_value_cansleep(imx335->reset_gpio, 1); + gpiod_set_value_cansleep(imx335->reset_gpio, 0); ret = clk_prepare_enable(imx335->inclk); if (ret) { @@ -1184,7 +1183,7 @@ static int imx335_power_on(struct device *dev) return 0; error_reset: - gpiod_set_value_cansleep(imx335->reset_gpio, 0); + gpiod_set_value_cansleep(imx335->reset_gpio, 1); regulator_bulk_disable(ARRAY_SIZE(imx335_supply_name), imx335->supplies); return ret; @@ -1201,7 +1200,7 @@ static int imx335_power_off(struct device *dev) struct v4l2_subdev *sd = dev_get_drvdata(dev); struct imx335 *imx335 = to_imx335(sd); - gpiod_set_value_cansleep(imx335->reset_gpio, 0); + gpiod_set_value_cansleep(imx335->reset_gpio, 1); clk_disable_unprepare(imx335->inclk); regulator_bulk_disable(ARRAY_SIZE(imx335_supply_name), imx335->supplies);