From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 2F5211EABAB; Tue, 15 Oct 2024 12:06:17 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1728993977; cv=none; b=j1ENnZ07Muop4FxK3bmUqRjZE/soF6kZvYAqLg+c93MttEc30QVmcdInMBl1l7NOjnrxi5DUbSScm8YHJRCF/igSY3Onh9x0e8lEjhtBc7WKtSCt+LO65v0IrCKvHPpVuFoBBViAxDj7VdR2FHNrj+Pd+wf8X89fFD5fNo07BVw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1728993977; c=relaxed/simple; bh=RFGBZufIsIXXF2/CJmlRdgp1tpbHLSHIVMi3v42nYgQ=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=AJDKYd+klRCLrvO4J43LbFylFN67gQLzBCcnhKHLuAO8dnsGpb0YpyW3ZZA0j37g4o4i2bkzDCXXL1xA2gRjCp5EePHKrdsYIca7XGtIKQiKIIlSS2cjCIk/p5wzreEmwJE7PDRjQcO8f0hGfYz+EvyH6pvSQtTCgewAd5qPWFs= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=YWZiUAr4; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="YWZiUAr4" Received: by smtp.kernel.org (Postfix) with ESMTPSA id AA840C4CEC6; Tue, 15 Oct 2024 12:06:16 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1728993977; bh=RFGBZufIsIXXF2/CJmlRdgp1tpbHLSHIVMi3v42nYgQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=YWZiUAr45N45M5uDjxXMICBluzl+etSm9S1UEJsaqsgEQCRitn7mrxwz92/6FowlK /akMYeL7afcq/ChISWYJtZoYkEViz6Gfv7X5o8WzdhzH6LnWOelmcuKacWUIKfbxYQ GCY1lh2xnTO9NQQPn/Nnw28GMdozb9Jn9Srhh07E= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Kieran Bingham , Sakari Ailus , Hans Verkuil , Sasha Levin Subject: [PATCH 5.15 570/691] media: i2c: imx335: Enable regulator supplies Date: Tue, 15 Oct 2024 13:28:38 +0200 Message-ID: <20241015112502.967067604@linuxfoundation.org> X-Mailer: git-send-email 2.47.0 In-Reply-To: <20241015112440.309539031@linuxfoundation.org> References: <20241015112440.309539031@linuxfoundation.org> User-Agent: quilt/0.67 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 5.15-stable review patch. If anyone has any objections, please let me know. ------------------ From: Kieran Bingham [ Upstream commit fea91ee73b7cd19f08017221923d789f984abc54 ] Provide support for enabling and disabling regulator supplies to control power to the camera sensor. While updating the power on function, document that a sleep is represented as 'T4' in the datasheet power on sequence. Signed-off-by: Kieran Bingham Signed-off-by: Sakari Ailus Signed-off-by: Hans Verkuil Stable-dep-of: 99d30e2fdea4 ("media: imx335: Fix reset-gpio handling") Signed-off-by: Sasha Levin --- drivers/media/i2c/imx335.c | 36 ++++++++++++++++++++++++++++++++++-- 1 file changed, 34 insertions(+), 2 deletions(-) diff --git a/drivers/media/i2c/imx335.c b/drivers/media/i2c/imx335.c index 780eb68b1894c..b5f912e0ee08e 100644 --- a/drivers/media/i2c/imx335.c +++ b/drivers/media/i2c/imx335.c @@ -75,6 +75,12 @@ struct imx335_reg_list { const struct imx335_reg *regs; }; +static const char * const imx335_supply_name[] = { + "avdd", /* Analog (2.9V) supply */ + "ovdd", /* Digital I/O (1.8V) supply */ + "dvdd", /* Digital Core (1.2V) supply */ +}; + /** * struct imx335_mode - imx335 sensor mode structure * @width: Frame width @@ -108,6 +114,7 @@ struct imx335_mode { * @sd: V4L2 sub-device * @pad: Media pad. Only one pad supported * @reset_gpio: Sensor reset gpio + * @supplies: Regulator supplies to handle power control * @inclk: Sensor input clock * @ctrl_handler: V4L2 control handler * @link_freq_ctrl: Pointer to link frequency control @@ -127,6 +134,8 @@ struct imx335 { struct v4l2_subdev sd; struct media_pad pad; struct gpio_desc *reset_gpio; + struct regulator_bulk_data supplies[ARRAY_SIZE(imx335_supply_name)]; + struct clk *inclk; struct v4l2_ctrl_handler ctrl_handler; struct v4l2_ctrl *link_freq_ctrl; @@ -790,6 +799,17 @@ static int imx335_parse_hw_config(struct imx335 *imx335) return PTR_ERR(imx335->reset_gpio); } + for (i = 0; i < ARRAY_SIZE(imx335_supply_name); i++) + imx335->supplies[i].supply = imx335_supply_name[i]; + + ret = devm_regulator_bulk_get(imx335->dev, + ARRAY_SIZE(imx335_supply_name), + imx335->supplies); + if (ret) { + dev_err(imx335->dev, "Failed to get regulators\n"); + return ret; + } + /* Get sensor input clock */ imx335->inclk = devm_clk_get(imx335->dev, NULL); if (IS_ERR(imx335->inclk)) { @@ -868,6 +888,17 @@ static int imx335_power_on(struct device *dev) struct imx335 *imx335 = to_imx335(sd); int ret; + ret = regulator_bulk_enable(ARRAY_SIZE(imx335_supply_name), + imx335->supplies); + if (ret) { + dev_err(dev, "%s: failed to enable regulators\n", + __func__); + return ret; + } + + usleep_range(500, 550); /* Tlow */ + + /* Set XCLR */ gpiod_set_value_cansleep(imx335->reset_gpio, 1); ret = clk_prepare_enable(imx335->inclk); @@ -876,12 +907,13 @@ static int imx335_power_on(struct device *dev) goto error_reset; } - usleep_range(20, 22); + usleep_range(20, 22); /* T4 */ return 0; error_reset: gpiod_set_value_cansleep(imx335->reset_gpio, 0); + regulator_bulk_disable(ARRAY_SIZE(imx335_supply_name), imx335->supplies); return ret; } @@ -898,8 +930,8 @@ static int imx335_power_off(struct device *dev) struct imx335 *imx335 = to_imx335(sd); gpiod_set_value_cansleep(imx335->reset_gpio, 0); - clk_disable_unprepare(imx335->inclk); + regulator_bulk_disable(ARRAY_SIZE(imx335_supply_name), imx335->supplies); return 0; } -- 2.43.0