From patchwork Sun Jun 2 20:13:43 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Luis Garcia X-Patchwork-Id: 13683051 Received: from mail-108-mta56.mxroute.com (mail-108-mta56.mxroute.com [136.175.108.56]) (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 64D328593D for ; Sun, 2 Jun 2024 20:20:54 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=136.175.108.56 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1717359655; cv=none; b=pqzHcBvHcscRMvUby6e3miIeI0kRM3zA3vcAgyiYpCf2meKuRr3vMgyIpCcQjxHuS//FQ4ADRrNwZulkFZcwV6QX218mc1Oj8Cc7p8TyIKA3/bUFmIe+56d+t8pvc8hE4TOfZScWwCu6hJQIN7aeUA431LrA0BKCz6aYvZnfXvM= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1717359655; c=relaxed/simple; bh=dqyM9Z9VYN6ZFqUOEdi2X52oaA72CYezLlG4kpMzZnc=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=Pmg134KRdfk8zPr2sKHQS0OzGGHr/ZF4dUkqa43e2Aj9jsQUbuagFNzmOxj5/ZR/OhBVBFb9EdO4PXv9jCR18YN/af6Fdu4h2phYp8++XktLASkJ0ZBqMB+NAk2GZEvT7Xvi4cZSBUKUNJ4fOdVNaGnV5Pl1X/trCvLArjaqKIU= 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=X/weH5KZ; arc=none smtp.client-ip=136.175.108.56 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="X/weH5KZ" Received: from filter006.mxroute.com ([136.175.111.3] filter006.mxroute.com) (Authenticated sender: mN4UYu2MZsgR) by mail-108-mta56.mxroute.com (ZoneMTA) with ESMTPSA id 18fda97004d000e2b6.013 for (version=TLSv1.3 cipher=TLS_AES_256_GCM_SHA384); Sun, 02 Jun 2024 20:14:40 +0000 X-Zone-Loop: 9ad75901c48fe0152e1f0a5beb3c3964c5c0e3f5009f 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=4COuKPQHOipeJ03Bp2DqJuNGbhMNq4ef6Yfoeygk1Yg=; b=X/weH5KZgDfXUAB+/ltW3CxIER D2K54dVjZlm8OXDZuzROejiF2p+vH/f0SzbbcGYUVOeO789dSlXhxFKEmXvFUVIG6UZ6S/TSNtMSl ytdCziI75r0er5EXlmmvneXj2hPHUF8EmyLz3MDaFy1qImF6wdJ9vBX4FPGJK8i5xRMR73ivsBF3r ySMrUX+7QUdnFTwW7BwIIYM0bPu4JJu0N603jDskSYBX/3zcyOF4qw20/lbRRjIlPLkVcARl1X4GI JXi2BNTgOklVzUFy3HatfyLG8yhQzdqLr4BHJxTcHBL7n1+NX20ihGFu67WrX40LAg2tr4ogPFdgU NG4yR8Tw==; 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, Ondrej Jirman , Ondrej Jirman , Luis Garcia , Tommaso Merciai Subject: [PATCH v6 21/23] media: i2c: imx258: Add support for reset gpio Date: Sun, 2 Jun 2024 14:13:43 -0600 Message-ID: <20240602201345.328737-22-git@luigi311.com> In-Reply-To: <20240602201345.328737-1-git@luigi311.com> References: <20240602201345.328737-1-git@luigi311.com> Precedence: bulk X-Mailing-List: linux-media@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Authenticated-Id: personal@luigi311.com From: Ondrej Jirman It was documented in DT, but not implemented. Signed-off-by: Ondrej Jirman Signed-off-by: Luis Garcia Reviewed-by: Pavel Machek Reviewed-by: Tommaso Merciai --- drivers/media/i2c/imx258.c | 16 +++++++++++++++- 1 file changed, 15 insertions(+), 1 deletion(-) diff --git a/drivers/media/i2c/imx258.c b/drivers/media/i2c/imx258.c index f043200e336e..671fe176c64c 100644 --- a/drivers/media/i2c/imx258.c +++ b/drivers/media/i2c/imx258.c @@ -698,6 +698,8 @@ struct imx258 { unsigned int lane_mode_idx; unsigned int csi2_flags; + struct gpio_desc *reset_gpio; + /* * Mutex for serialized access: * Protect sensor module set pad format and start/stop streaming safely. @@ -1245,7 +1247,10 @@ 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) @@ -1254,6 +1259,9 @@ static int imx258_power_off(struct device *dev) struct imx258 *imx258 = to_imx258(sd); clk_disable_unprepare(imx258->clk); + + gpiod_set_value_cansleep(imx258->reset_gpio, 1); + regulator_bulk_disable(IMX258_NUM_SUPPLIES, imx258->supplies); return 0; @@ -1559,6 +1567,12 @@ static int imx258_probe(struct i2c_client *client) if (!imx258->variant_cfg) imx258->variant_cfg = &imx258_cfg; + /* 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);