From patchwork Wed Jun 26 23:56:13 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Fabio Estevam X-Patchwork-Id: 11018579 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 5E7DE76 for ; Wed, 26 Jun 2019 23:57:26 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 4EE06289DC for ; Wed, 26 Jun 2019 23:57:26 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 4360C28A03; Wed, 26 Jun 2019 23:57:26 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-8.0 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FROM,MAILING_LIST_MULTI,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id D93D4289DC for ; Wed, 26 Jun 2019 23:57:25 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726534AbfFZX5Z (ORCPT ); Wed, 26 Jun 2019 19:57:25 -0400 Received: from mail-qk1-f194.google.com ([209.85.222.194]:46204 "EHLO mail-qk1-f194.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726385AbfFZX5Z (ORCPT ); Wed, 26 Jun 2019 19:57:25 -0400 Received: by mail-qk1-f194.google.com with SMTP id x18so194458qkn.13 for ; Wed, 26 Jun 2019 16:57:24 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id; bh=Guu6CiHa2q+zHzhdEkXwqHVkT/ipxnLW4v3dLzYrqlw=; b=h0GWc1e9mQY9SOSzsLn9MUoaD2DSoJrJwIyYA0d3BSpu+BUsBSriwV5WWME+OVxqoS IXKZncUahAJQLpFqkJF2ihnGEXDP68Mb3IRS81UWuDvbfMRf7q+B2xwBwA/WVZR+EYA1 mdJvW13bC0dap41R/Ktko2IWDCo8RAaFnK2HehS6zNMUJXA0LSBIFWmIi0nHd73Nn8iP Lv/MpGYwvWL1lI6GmaIMfmDiPZ3g61Gpn9v0GppVh9rkLX2hoQX28vwdrPKYBBzEZXKM JAf/xLxNHKTJ0MswSbr1fwmiTObCqwHKiT+BJ03RhVFBLi33Aq1sMomE1AOx1rp/9qbw wKYA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id; bh=Guu6CiHa2q+zHzhdEkXwqHVkT/ipxnLW4v3dLzYrqlw=; b=P78AG7FIwZInZxIfMkU5SiOTBLzFfmyIvQpYEdkvMgG/A+OXTluE95cKaj9zW/VX8A EiMZqT/D41gARmAktV4HHarZ25UranCdNkxGnei73+kgkBj2byKH10OvB5Dn+4f55xAo huS4NcA41AeYOQDIJ1NUi5iKDu39o4CvfMAg+0eGxHRhhpS57U3c8lhdEdOBQFApqiWS pzQ2g9abFoY9J3QoFPQu3AKLw6nJC/+hWft6mM6qJAUpImASe2uOgO3RMcOhFh1TfSXN TMbguwZJUnvTxv906PVt3SekAWsYnjsNoHqnJRATmbaiOo7E+Jai/vB1Mk2qQuB4gLNE o0mw== X-Gm-Message-State: APjAAAVlTh5DOkVx2smD87FsJhbrxHLYxCP9HKXXNk7zRbj72y1SqG+t itF28N23Cy/SViO/4f6Cels= X-Google-Smtp-Source: APXvYqw69h0kAf51KZX8m4mr/DsVzV+RKt9muMdJPQNy0ca1vccc9P2sRbIVyEEo/J849dgCpfe/Qg== X-Received: by 2002:a37:517:: with SMTP id 23mr707417qkf.496.1561593443895; Wed, 26 Jun 2019 16:57:23 -0700 (PDT) Received: from fabio-Latitude-E5450.am.freescale.net ([2804:14c:482:3c8:56cb:1049:60d2:137b]) by smtp.gmail.com with ESMTPSA id w16sm264022qtc.41.2019.06.26.16.57.21 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Wed, 26 Jun 2019 16:57:23 -0700 (PDT) From: Fabio Estevam To: mchehab@kernel.org Cc: hverkuil-cisco@xs4all.nl, todor.tomov@linaro.org, ezequiel@collabora.com, linux-media@vger.kernel.org, Fabio Estevam Subject: [PATCH 1/2] media: ov5645: Remove unneeded regulator_set_voltage() Date: Wed, 26 Jun 2019 20:56:13 -0300 Message-Id: <20190626235614.26587-1-festevam@gmail.com> X-Mailer: git-send-email 2.17.1 Sender: linux-media-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP There is no need to call regulator_set_voltage() for each regulator that powers the camera. The voltage value for each regulator should be retrieved from the device tree, so remove the unneeded regulator_set_voltage(). Signed-off-by: Fabio Estevam --- drivers/media/i2c/ov5645.c | 28 ---------------------------- 1 file changed, 28 deletions(-) diff --git a/drivers/media/i2c/ov5645.c b/drivers/media/i2c/ov5645.c index 124c8df04633..4e302dc15177 100644 --- a/drivers/media/i2c/ov5645.c +++ b/drivers/media/i2c/ov5645.c @@ -34,10 +34,6 @@ #include #include -#define OV5645_VOLTAGE_ANALOG 2800000 -#define OV5645_VOLTAGE_DIGITAL_CORE 1500000 -#define OV5645_VOLTAGE_DIGITAL_IO 1800000 - #define OV5645_SYSTEM_CTRL0 0x3008 #define OV5645_SYSTEM_CTRL0_START 0x02 #define OV5645_SYSTEM_CTRL0_STOP 0x42 @@ -1156,42 +1152,18 @@ static int ov5645_probe(struct i2c_client *client, return PTR_ERR(ov5645->io_regulator); } - ret = regulator_set_voltage(ov5645->io_regulator, - OV5645_VOLTAGE_DIGITAL_IO, - OV5645_VOLTAGE_DIGITAL_IO); - if (ret < 0) { - dev_err(dev, "cannot set io voltage\n"); - return ret; - } - ov5645->core_regulator = devm_regulator_get(dev, "vddd"); if (IS_ERR(ov5645->core_regulator)) { dev_err(dev, "cannot get core regulator\n"); return PTR_ERR(ov5645->core_regulator); } - ret = regulator_set_voltage(ov5645->core_regulator, - OV5645_VOLTAGE_DIGITAL_CORE, - OV5645_VOLTAGE_DIGITAL_CORE); - if (ret < 0) { - dev_err(dev, "cannot set core voltage\n"); - return ret; - } - ov5645->analog_regulator = devm_regulator_get(dev, "vdda"); if (IS_ERR(ov5645->analog_regulator)) { dev_err(dev, "cannot get analog regulator\n"); return PTR_ERR(ov5645->analog_regulator); } - ret = regulator_set_voltage(ov5645->analog_regulator, - OV5645_VOLTAGE_ANALOG, - OV5645_VOLTAGE_ANALOG); - if (ret < 0) { - dev_err(dev, "cannot set analog voltage\n"); - return ret; - } - ov5645->enable_gpio = devm_gpiod_get(dev, "enable", GPIOD_OUT_HIGH); if (IS_ERR(ov5645->enable_gpio)) { dev_err(dev, "cannot get enable gpio\n"); From patchwork Wed Jun 26 23:56:14 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Fabio Estevam X-Patchwork-Id: 11018581 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 281B776 for ; 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Wed, 26 Jun 2019 16:57:26 -0700 (PDT) Received: from fabio-Latitude-E5450.am.freescale.net ([2804:14c:482:3c8:56cb:1049:60d2:137b]) by smtp.gmail.com with ESMTPSA id w16sm264022qtc.41.2019.06.26.16.57.24 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Wed, 26 Jun 2019 16:57:26 -0700 (PDT) From: Fabio Estevam To: mchehab@kernel.org Cc: hverkuil-cisco@xs4all.nl, todor.tomov@linaro.org, ezequiel@collabora.com, linux-media@vger.kernel.org, Fabio Estevam Subject: [PATCH 2/2] media: ov5645: Use regulator_bulk() functions Date: Wed, 26 Jun 2019 20:56:14 -0300 Message-Id: <20190626235614.26587-2-festevam@gmail.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20190626235614.26587-1-festevam@gmail.com> References: <20190626235614.26587-1-festevam@gmail.com> Sender: linux-media-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP The code can be simplified by using the regulator_bulk() functions, so switch to it. Signed-off-by: Fabio Estevam --- drivers/media/i2c/ov5645.c | 94 +++++++++----------------------------- 1 file changed, 21 insertions(+), 73 deletions(-) diff --git a/drivers/media/i2c/ov5645.c b/drivers/media/i2c/ov5645.c index 4e302dc15177..a37ae5d5ff12 100644 --- a/drivers/media/i2c/ov5645.c +++ b/drivers/media/i2c/ov5645.c @@ -58,6 +58,15 @@ #define OV5645_SDE_SAT_U 0x5583 #define OV5645_SDE_SAT_V 0x5584 +/* regulator supplies */ +static const char * const ov5645_supply_name[] = { + "vdddo", /* Digital I/O (1.8V) supply */ + "vddd", /* Digital Core (1.5V) supply */ + "vdda", /* Analog (2.8V) supply */ +}; + +#define OV5645_NUM_SUPPLIES ARRAY_SIZE(ov5645_supply_name) + struct reg_value { u16 reg; u8 val; @@ -82,9 +91,7 @@ struct ov5645 { struct v4l2_rect crop; struct clk *xclk; - struct regulator *io_regulator; - struct regulator *core_regulator; - struct regulator *analog_regulator; + struct regulator_bulk_data supplies[OV5645_NUM_SUPPLIES]; const struct ov5645_mode_info *current_mode; @@ -529,55 +536,6 @@ static const struct ov5645_mode_info ov5645_mode_info_data[] = { }, }; -static int ov5645_regulators_enable(struct ov5645 *ov5645) -{ - int ret; - - ret = regulator_enable(ov5645->io_regulator); - if (ret < 0) { - dev_err(ov5645->dev, "set io voltage failed\n"); - return ret; - } - - ret = regulator_enable(ov5645->analog_regulator); - if (ret) { - dev_err(ov5645->dev, "set analog voltage failed\n"); - goto err_disable_io; - } - - ret = regulator_enable(ov5645->core_regulator); - if (ret) { - dev_err(ov5645->dev, "set core voltage failed\n"); - goto err_disable_analog; - } - - return 0; - -err_disable_analog: - regulator_disable(ov5645->analog_regulator); -err_disable_io: - regulator_disable(ov5645->io_regulator); - - return ret; -} - -static void ov5645_regulators_disable(struct ov5645 *ov5645) -{ - int ret; - - ret = regulator_disable(ov5645->core_regulator); - if (ret < 0) - dev_err(ov5645->dev, "core regulator disable failed\n"); - - ret = regulator_disable(ov5645->analog_regulator); - if (ret < 0) - dev_err(ov5645->dev, "analog regulator disable failed\n"); - - ret = regulator_disable(ov5645->io_regulator); - if (ret < 0) - dev_err(ov5645->dev, "io regulator disable failed\n"); -} - static int ov5645_write_reg(struct ov5645 *ov5645, u16 reg, u8 val) { u8 regbuf[3]; @@ -676,15 +634,14 @@ static int ov5645_set_power_on(struct ov5645 *ov5645) { int ret; - ret = ov5645_regulators_enable(ov5645); - if (ret < 0) { + ret = regulator_bulk_enable(OV5645_NUM_SUPPLIES, ov5645->supplies); + if (ret < 0) return ret; - } ret = clk_prepare_enable(ov5645->xclk); if (ret < 0) { dev_err(ov5645->dev, "clk prepare enable failed\n"); - ov5645_regulators_disable(ov5645); + regulator_bulk_disable(OV5645_NUM_SUPPLIES, ov5645->supplies); return ret; } @@ -704,7 +661,7 @@ static void ov5645_set_power_off(struct ov5645 *ov5645) gpiod_set_value_cansleep(ov5645->rst_gpio, 1); gpiod_set_value_cansleep(ov5645->enable_gpio, 0); clk_disable_unprepare(ov5645->xclk); - ov5645_regulators_disable(ov5645); + regulator_bulk_disable(OV5645_NUM_SUPPLIES, ov5645->supplies); } static int ov5645_s_power(struct v4l2_subdev *sd, int on) @@ -1089,6 +1046,7 @@ static int ov5645_probe(struct i2c_client *client, struct device_node *endpoint; struct ov5645 *ov5645; u8 chip_id_high, chip_id_low; + unsigned int i; u32 xclk_freq; int ret; @@ -1146,23 +1104,13 @@ static int ov5645_probe(struct i2c_client *client, return ret; } - ov5645->io_regulator = devm_regulator_get(dev, "vdddo"); - if (IS_ERR(ov5645->io_regulator)) { - dev_err(dev, "cannot get io regulator\n"); - return PTR_ERR(ov5645->io_regulator); - } - - ov5645->core_regulator = devm_regulator_get(dev, "vddd"); - if (IS_ERR(ov5645->core_regulator)) { - dev_err(dev, "cannot get core regulator\n"); - return PTR_ERR(ov5645->core_regulator); - } + for (i = 0; i < OV5645_NUM_SUPPLIES; i++) + ov5645->supplies[i].supply = ov5645_supply_name[i]; - ov5645->analog_regulator = devm_regulator_get(dev, "vdda"); - if (IS_ERR(ov5645->analog_regulator)) { - dev_err(dev, "cannot get analog regulator\n"); - return PTR_ERR(ov5645->analog_regulator); - } + ret = devm_regulator_bulk_get(dev, OV5645_NUM_SUPPLIES, + ov5645->supplies); + if (ret < 0) + return ret; ov5645->enable_gpio = devm_gpiod_get(dev, "enable", GPIOD_OUT_HIGH); if (IS_ERR(ov5645->enable_gpio)) {