From patchwork Sun Apr 14 20:35:00 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Luis Garcia X-Patchwork-Id: 13629275 Received: from mail-108-mta10.mxroute.com (mail-108-mta10.mxroute.com [136.175.108.10]) (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 EB411524C9 for ; Sun, 14 Apr 2024 20:36:04 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=136.175.108.10 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1713126966; cv=none; b=koDjtmOunqF1EYW4TKCSp9KIsz8qiVoNHkR1miV/oWs2ebJdTRCPPiIEh49SOoRB2bzXfXc340EQj8d0iu7wush36BgFioC4zDfdLgPNF30vtjZmrXt7Lpik2z9CP5p87M+SSYyASvVY3T400K4fqeFiuv2Fjlof4CfOp/v7f/8= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1713126966; c=relaxed/simple; bh=t/cCBhDYCw1r5pzuqPaZFNwhzv2t0n4vkiPOtOot3k4=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=BWnNC4T+pQ5quKZgYGP4nnmhaSciku5WlTLsY3aKsTQ5LNIAyIY41vZrfBof6jt+8qNywv2paq9bj6R7kQxLe1HHGbTfHTSdptjRLE3pZSWgbiP0agEVufT0JCBfHJktNGLxwf8WCrUFKTAYPqFsiaHk2nY2JRk8eXp0ognaUBo= 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=udBoGc6e; arc=none smtp.client-ip=136.175.108.10 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="udBoGc6e" Received: from filter006.mxroute.com ([136.175.111.2] filter006.mxroute.com) (Authenticated sender: mN4UYu2MZsgR) by mail-108-mta10.mxroute.com (ZoneMTA) with ESMTPSA id 18ede52ecdc0003bea.00a for (version=TLSv1.3 cipher=TLS_AES_256_GCM_SHA384); Sun, 14 Apr 2024 20:36:00 +0000 X-Zone-Loop: 575b3baa2ad8329f576596636ed6e2a2edcbd805e11f 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=0ImDi7ltEDkTokT6mguLi93jksL5klxdx4wbp5jiCIg=; b=udBoGc6eJSLXRBX7Q/xovah8ZY ev2shxAewp0D+viunnhh7BWSGYG+cBIsStjRBYQEOsDpzplnAfd2vTUyfyfa01L9+Tb9AUM9wZDZj RHKNn375xqzepToO7CZDt6DrXJLGj0j+mO2iGa/zPsyRan5ngcMqbzWE24h6ccGk74FIPOttmTfx/ WTwDRLLN9bVpcGkU0KVrWTXravIeXfr0LM12JEz3Qa6UhvioMQTTFKSWUygwTrHhqz4QWayCKKoRZ d5hMQ/6Jlz6iP4rxMg3YctMBghlWTOJMahNrDxItEzjGf7nVpmpfVMDiFcuIL9cff+JyPAbtUCNcJ 28Hfl8cw==; 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 22/25] media: i2c: imx258: Add support for powerdown gpio Date: Sun, 14 Apr 2024 14:35:00 -0600 Message-ID: <20240414203503.18402-23-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 On some boards powerdown signal needs to be deasserted for this sensor to be enabled. Signed-off-by: Ondrej Jirman Signed-off-by: Luis Garcia --- drivers/media/i2c/imx258.c | 14 ++++++++++++++ 1 file changed, 14 insertions(+) diff --git a/drivers/media/i2c/imx258.c b/drivers/media/i2c/imx258.c index f043200e336e..f0bd72f241e4 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 *powerdown_gpio; + /* * Mutex for serialized access: * Protect sensor module set pad format and start/stop streaming safely. @@ -1231,6 +1233,8 @@ static int imx258_power_on(struct device *dev) struct imx258 *imx258 = to_imx258(sd); int ret; + gpiod_set_value_cansleep(imx258->powerdown_gpio, 0); + ret = regulator_bulk_enable(IMX258_NUM_SUPPLIES, imx258->supplies); if (ret) { @@ -1242,6 +1246,7 @@ static int imx258_power_on(struct device *dev) ret = clk_prepare_enable(imx258->clk); if (ret) { dev_err(dev, "failed to enable clock\n"); + gpiod_set_value_cansleep(imx258->powerdown_gpio, 1); regulator_bulk_disable(IMX258_NUM_SUPPLIES, imx258->supplies); } @@ -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->powerdown_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 power down pin */ + imx258->powerdown_gpio = devm_gpiod_get_optional(&client->dev, "powerdown", + GPIOD_OUT_HIGH); + if (IS_ERR(imx258->powerdown_gpio)) + return PTR_ERR(imx258->powerdown_gpio); + /* Initialize subdev */ v4l2_i2c_subdev_init(&imx258->sd, client, &imx258_subdev_ops);