From patchwork Wed Apr 3 15:03:34 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Luis Garcia X-Patchwork-Id: 13616332 Received: from mail-108-mta160.mxroute.com (mail-108-mta160.mxroute.com [136.175.108.160]) (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 236D414BF96 for ; Wed, 3 Apr 2024 15:12:40 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=136.175.108.160 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1712157162; cv=none; b=nn/6IHTgr5l+fWDSHPMnYzDNCDGeSJkKJ4H5vLk55TEoL4wHMpA4VvyZMyv7ythw0ZYjFkMZKyGFl+JA5TDibtZAgcazOh/6345kMmkW4lJJcfBv917ZDlVe/riGiVr6IjhD8BDe9ahkSODPfS8OI0WRA/0vVG1i26YoJirHvcI= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1712157162; c=relaxed/simple; bh=4l25b11Fcd1ojpReo0LLvRhKMjS2oSzJM5BnhKrlM8g=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=WmaY8oYK4DkOJx3QmCb8J0k0PLLy3A9+eWkfasLA8d43WbRxjhtXCUtrVumjsVPopjH3Dqyeu57RAVl4O1IrzCd7djBebslsdwJBNek3tPy7LCAgfUh+NrIbS3lQyCpXnUFIbhLY9+zzGa0PCoeAfNmd8Nppe+N0ZUvnWlUA62A= 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=ZaQU/yoN; arc=none smtp.client-ip=136.175.108.160 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="ZaQU/yoN" Received: from filter006.mxroute.com ([136.175.111.2] filter006.mxroute.com) (Authenticated sender: mN4UYu2MZsgR) by mail-108-mta160.mxroute.com (ZoneMTA) with ESMTPSA id 18ea4802bee0003bea.00a for (version=TLSv1.3 cipher=TLS_AES_256_GCM_SHA384); Wed, 03 Apr 2024 15:07:27 +0000 X-Zone-Loop: 120477cc72cce9fdf6bc4f89c61378f5b020c1af7999 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=A5kWwvdwdEyuxBlVEZzJFt3zU0Ewr3vkitT5UsHdd40=; b=ZaQU/yoNNdDLSIvxxZWLSxfUMO hXQ3Ap6+bxIXT+jh0T7KMm2VghvUK4genIWrJDlYoLHC4zECr6LeDeR5otNgshT87T6t/rDWMEVrm vI544FXrpmV9Z78UqiTbRvgsDVhibml8Kq3JZNQLOniO46xDZyvq5Nz092/viWAxL2YYApYra/k3c XSfMbdYe7ayojLfEp8ErAO1YUs/15z7IxEnFK0tA0+goDYci7o+reAQD9IcAB0uzAasYUUR9Zf1Pv +T+Rg22eJwhYz3IJt4l44ISDLgZ2ab5u0DLCkrYgokaFH73gYM8y9QBzPOJhMxjDeD2WJXPkOZMqG 6jrLJf/w==; 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 Subject: [PATCH v3 05/25] media: i2c: imx258: Add regulator control Date: Wed, 3 Apr 2024 09:03:34 -0600 Message-ID: <20240403150355.189229-6-git@luigi311.com> In-Reply-To: <20240403150355.189229-1-git@luigi311.com> References: <20240403150355.189229-1-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: Dave Stevenson The device tree bindings define the relevant regulators for the sensor, so update the driver to request the regulators and control them at the appropriate times. Signed-off-by: Dave Stevenson Signed-off-by: Luis Garcia --- drivers/media/i2c/imx258.c | 42 +++++++++++++++++++++++++++++++++++++- 1 file changed, 41 insertions(+), 1 deletion(-) diff --git a/drivers/media/i2c/imx258.c b/drivers/media/i2c/imx258.c index df7ed4716762..495eaada2945 100644 --- a/drivers/media/i2c/imx258.c +++ b/drivers/media/i2c/imx258.c @@ -7,6 +7,7 @@ #include #include #include +#include #include #include #include @@ -507,6 +508,16 @@ static const char * const imx258_test_pattern_menu[] = { "Pseudorandom Sequence (PN9)", }; +/* regulator supplies */ +static const char * const imx258_supply_name[] = { + /* Supplies can be enabled in any order */ + "vana", /* Analog (2.8V) supply */ + "vdig", /* Digital Core (1.2V) supply */ + "vif", /* IF (1.8V) supply */ +}; + +#define IMX258_NUM_SUPPLIES ARRAY_SIZE(imx258_supply_name) + /* Configurations for supported link frequencies */ #define IMX258_LINK_FREQ_634MHZ 633600000ULL #define IMX258_LINK_FREQ_320MHZ 320000000ULL @@ -611,6 +622,7 @@ struct imx258 { struct mutex mutex; struct clk *clk; + struct regulator_bulk_data supplies[IMX258_NUM_SUPPLIES]; }; static inline struct imx258 *to_imx258(struct v4l2_subdev *_sd) @@ -995,9 +1007,19 @@ static int imx258_power_on(struct device *dev) struct imx258 *imx258 = to_imx258(sd); int ret; + ret = regulator_bulk_enable(IMX258_NUM_SUPPLIES, + imx258->supplies); + if (ret) { + dev_err(dev, "%s: failed to enable regulators\n", + __func__); + return ret; + } + ret = clk_prepare_enable(imx258->clk); - if (ret) + if (ret) { dev_err(dev, "failed to enable clock\n"); + regulator_bulk_disable(IMX258_NUM_SUPPLIES, imx258->supplies); + } return ret; } @@ -1008,6 +1030,7 @@ static int imx258_power_off(struct device *dev) struct imx258 *imx258 = to_imx258(sd); clk_disable_unprepare(imx258->clk); + regulator_bulk_disable(IMX258_NUM_SUPPLIES, imx258->supplies); return 0; } @@ -1220,6 +1243,18 @@ static void imx258_free_controls(struct imx258 *imx258) mutex_destroy(&imx258->mutex); } +static int imx258_get_regulators(struct imx258 *imx258, + struct i2c_client *client) +{ + unsigned int i; + + for (i = 0; i < IMX258_NUM_SUPPLIES; i++) + imx258->supplies[i].supply = imx258_supply_name[i]; + + return devm_regulator_bulk_get(&client->dev, + IMX258_NUM_SUPPLIES, imx258->supplies); +} + static int imx258_probe(struct i2c_client *client) { struct imx258 *imx258; @@ -1230,6 +1265,11 @@ static int imx258_probe(struct i2c_client *client) if (!imx258) return -ENOMEM; + ret = imx258_get_regulators(imx258, client); + if (ret) + return dev_err_probe(&client->dev, ret, + "failed to get regulators\n"); + imx258->clk = devm_clk_get_optional(&client->dev, NULL); if (IS_ERR(imx258->clk)) return dev_err_probe(&client->dev, PTR_ERR(imx258->clk),