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[2001:1c00:c32:7800:5bfa:a036:83f0:f9ec]) by smtp.gmail.com with ESMTPSA id 2adb3069b0e04-5a2b13fd743sm412475e87.21.2026.03.28.04.50.54 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Sat, 28 Mar 2026 04:50:54 -0700 (PDT) Message-ID: <3bc9fb28-b567-40da-a80e-548c2ea7f207@oss.qualcomm.com> Date: Sat, 28 Mar 2026 12:50:53 +0100 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird From: johannes.goede@oss.qualcomm.com Subject: Re: [PATCH v6 2/2] media: ov13b10: Support multiple regulators To: Arun T Cc: sakari.ailus@linux.intel.com, arec.kao@intel.com, ilpo.jarvinen@linux.intel.com, dan.scally@ideasonboard.com, platform-driver-x86@vger.kernel.org, linux-media@vger.kernel.org, linux-kernel@vger.kernel.org, mehdi.djait@intel.com References: <20260327181959.3528753-1-arun.t@intel.com> <20260327181959.3528753-3-arun.t@intel.com> Content-Language: en-US, nl In-Reply-To: <20260327181959.3528753-3-arun.t@intel.com> Content-Type: text/plain; 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> > +static const char * const ov13b10_supply_names[] = { > + "dovdd", /* Digital I/O power */ > + "avdd", /* Analog power */ > + "dvdd", /* Digital core power */ > +}; > + > struct ov13b10 { > struct device *dev; > > @@ -708,7 +715,7 @@ struct ov13b10 { > struct v4l2_ctrl_handler ctrl_handler; > > struct clk *img_clk; > - struct regulator *avdd; > + struct regulator_bulk_data supplies[ARRAY_SIZE(ov13b10_supply_names)]; > struct gpio_desc *reset; > > /* V4L2 Controls */ > @@ -1194,9 +1201,8 @@ static int ov13b10_power_off(struct device *dev) > struct ov13b10 *ov13b10 = to_ov13b10(sd); > > gpiod_set_value_cansleep(ov13b10->reset, 1); > - > - if (ov13b10->avdd) > - regulator_disable(ov13b10->avdd); > + regulator_bulk_disable(ARRAY_SIZE(ov13b10_supply_names), > + ov13b10->supplies); > > clk_disable_unprepare(ov13b10->img_clk); > > @@ -1214,14 +1220,12 @@ static int ov13b10_power_on(struct device *dev) > dev_err(dev, "failed to enable imaging clock: %d", ret); > return ret; > } > - > - if (ov13b10->avdd) { > - ret = regulator_enable(ov13b10->avdd); > - if (ret < 0) { > - dev_err(dev, "failed to enable avdd: %d", ret); > - clk_disable_unprepare(ov13b10->img_clk); > - return ret; > - } > + ret = regulator_bulk_enable(ARRAY_SIZE(ov13b10_supply_names), > + ov13b10->supplies); > + if (ret < 0) { > + dev_err(dev, "failed to enable regulators\n"); > + clk_disable_unprepare(ov13b10->img_clk); > + return ret; > } > > gpiod_set_value_cansleep(ov13b10->reset, 0); > @@ -1475,7 +1479,8 @@ static int ov13b10_get_pm_resources(struct ov13b10 *ov13b) > unsigned long freq; > int ret; > > - ov13b->reset = devm_gpiod_get_optional(ov13b->dev, "reset", GPIOD_OUT_LOW); > + ov13b->reset = devm_gpiod_get_optional(ov13b->dev, "reset", > + GPIOD_OUT_LOW); > if (IS_ERR(ov13b->reset)) > return dev_err_probe(ov13b->dev, PTR_ERR(ov13b->reset), > "failed to get reset gpio\n"); > @@ -1491,15 +1496,15 @@ static int ov13b10_get_pm_resources(struct ov13b10 *ov13b) > "external clock %lu is not supported\n", > freq); > > - ov13b->avdd = devm_regulator_get_optional(ov13b->dev, "avdd"); > - if (IS_ERR(ov13b->avdd)) { > - ret = PTR_ERR(ov13b->avdd); > - ov13b->avdd = NULL; > - if (ret != -ENODEV) > - return dev_err_probe(ov13b->dev, ret, > - "failed to get avdd regulator\n"); > - } > + for (unsigned int i = 0; i < ARRAY_SIZE(ov13b10_supply_names); i++) > + ov13b->supplies[i].supply = ov13b10_supply_names[i]; > > + ret = devm_regulator_bulk_get(ov13b->dev, > + ARRAY_SIZE(ov13b10_supply_names), > + ov13b->supplies); > + if (ret) > + return dev_err_probe(ov13b->dev, ret, > + "failed to get regulators\n"); > return 0; > } >