From patchwork Sun Apr 14 20:35:01 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Luis Garcia X-Patchwork-Id: 13629333 Received: from mail-108-mta92.mxroute.com (mail-108-mta92.mxroute.com [136.175.108.92]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 21D58136E1A for ; Sun, 14 Apr 2024 20:41:15 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=136.175.108.92 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1713127278; cv=none; b=sea9hGnkLF2X1T+CLcvfbZVBlqZO5N/nR8kTElJwpAdVAcIdQftej+eLJVnszUmu5/Yp5IYyfu7zIlYGAQpYFROWqXto9vuFxL/agrdCC4IuJOhL2T4xdi/+BLt/TLVyQOXogTiEIhEnTcsSH2ng+du9OvHB34wTeQJPfQGGAd4= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1713127278; c=relaxed/simple; bh=txI7nLQ7SaAgPbFprDJdTC4+aOlNavya5MDukH1ErMc=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=S69UFVc9HXfCMaIpzYu7xHj4fn9PaMN52dgUBCIxv6zTgCUQ4T6Qem1NSyPZ+KoX1UCIIpyd9lT+ITaRwqwUt/LPDaxB3RBBriuyikjnDcDFeIkoqzykcUA6sFoFn025tkf55Qqnh+sfr3cb6f4AdaAaG3rH5/zwUFZFXR0IN8o= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=luigi311.com; spf=pass smtp.mailfrom=luigi311.com; dkim=pass (2048-bit key) header.d=luigi311.com header.i=@luigi311.com header.b=s3iY/3u7; arc=none smtp.client-ip=136.175.108.92 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=luigi311.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=luigi311.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=luigi311.com header.i=@luigi311.com header.b="s3iY/3u7" Received: from filter006.mxroute.com ([136.175.111.2] filter006.mxroute.com) (Authenticated sender: mN4UYu2MZsgR) by mail-108-mta92.mxroute.com (ZoneMTA) with ESMTPSA id 18ede52eec30003bea.00a for (version=TLSv1.3 cipher=TLS_AES_256_GCM_SHA384); Sun, 14 Apr 2024 20:36:00 +0000 X-Zone-Loop: 9f024daaca4fc2328b7a10fab349e147e38b5dd15e6d DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=luigi311.com; s=x; h=Content-Transfer-Encoding:MIME-Version:References: In-Reply-To:Message-ID:Date:Subject:Cc:To:From:Sender:Reply-To:Content-Type: Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender: Resent-To:Resent-Cc:Resent-Message-ID:List-Id:List-Help:List-Unsubscribe: List-Subscribe:List-Post:List-Owner:List-Archive; bh=RhPK9nK9EKfKLg4i6+hTwf+Rau4stoc3Ghdd7Jp7wTo=; b=s3iY/3u7znzblaOimEAMVdeBOh XB5s2xOeMtrEPhCYtzrK0Pp50YupnAzGidF0n3upIKxuo4AZVFPiRX+8NEbqdIEiKACZWBQfWMkqL 46/wUAnvsh0rv2b8yR+X2PUIiy/z6RhpBMAqypwaSLcuPDdgBrxAxyVI6hDeqAHEAJXszu8TfqeKq +7HJH73F0EMMLVEBsCuf0b/opZAv+5ZS74JZao+dKl21NwnSWQKPz4d/C12Kx1tagPSHh6UpDsmcB BulwlbNx4B54j3RnZvENv4o1jEhQjufzkVo77hz3jelmrsQrnbNlI5wN/l+f8rXS/8d21Qej/Hkb8 2MlXFbuA==; From: git@luigi311.com To: linux-media@vger.kernel.org Cc: dave.stevenson@raspberrypi.com, jacopo.mondi@ideasonboard.com, mchehab@kernel.org, robh@kernel.org, krzysztof.kozlowski+dt@linaro.org, conor+dt@kernel.org, shawnguo@kernel.org, s.hauer@pengutronix.de, kernel@pengutronix.de, festevam@gmail.com, sakari.ailus@linux.intel.com, devicetree@vger.kernel.org, imx@lists.linux.dev, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, pavel@ucw.cz, phone-devel@vger.kernel.org, Luis Garcia , Ondrej Jirman Subject: [PATCH v4 23/25] media: i2c: imx258: Add support for reset gpio Date: Sun, 14 Apr 2024 14:35:01 -0600 Message-ID: <20240414203503.18402-24-git@luigi311.com> In-Reply-To: <20240414203503.18402-1-git@luigi311.com> References: <20240414203503.18402-1-git@luigi311.com> Precedence: bulk X-Mailing-List: imx@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Authenticated-Id: personal@luigi311.com From: Luis Garcia It was documented in DT, but not implemented. Signed-off-by: Ondrej Jirman Signed-off-by: Luis Garcia Reviewed-by: Tommaso Merciai --- drivers/media/i2c/imx258.c | 14 +++++++++++++- 1 file changed, 13 insertions(+), 1 deletion(-) diff --git a/drivers/media/i2c/imx258.c b/drivers/media/i2c/imx258.c index f0bd72f241e4..5de71cb7c1ae 100644 --- a/drivers/media/i2c/imx258.c +++ b/drivers/media/i2c/imx258.c @@ -699,6 +699,7 @@ struct imx258 { unsigned int csi2_flags; struct gpio_desc *powerdown_gpio; + struct gpio_desc *reset_gpio; /* * Mutex for serialized access: @@ -1250,7 +1251,11 @@ static int imx258_power_on(struct device *dev) regulator_bulk_disable(IMX258_NUM_SUPPLIES, imx258->supplies); } - return ret; + gpiod_set_value_cansleep(imx258->reset_gpio, 0); + + usleep_range(400, 500); + + return 0; } static int imx258_power_off(struct device *dev) @@ -1260,6 +1265,7 @@ static int imx258_power_off(struct device *dev) clk_disable_unprepare(imx258->clk); + gpiod_set_value_cansleep(imx258->reset_gpio, 1); gpiod_set_value_cansleep(imx258->powerdown_gpio, 1); regulator_bulk_disable(IMX258_NUM_SUPPLIES, imx258->supplies); @@ -1573,6 +1579,12 @@ static int imx258_probe(struct i2c_client *client) if (IS_ERR(imx258->powerdown_gpio)) return PTR_ERR(imx258->powerdown_gpio); + /* request optional reset pin */ + imx258->reset_gpio = devm_gpiod_get_optional(&client->dev, "reset", + GPIOD_OUT_HIGH); + if (IS_ERR(imx258->reset_gpio)) + return PTR_ERR(imx258->reset_gpio); + /* Initialize subdev */ v4l2_i2c_subdev_init(&imx258->sd, client, &imx258_subdev_ops);