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b=vbvrXe2Kxhp+3S9foOfHA1GkuY D6jLb6dkqrh+FTRz/W8EzdMqxFac1SsHH+v0ZN0vtEYF8Bn2ZnfKAPjrqmhwYJrCcQR1GvdkAku3t y1qyZGKYeW62+VQkdvCEWVQvMfpbt3cZBXj0VoHGVd88GLALePYCU39I4DzW5doBiKB8m/arybVp+ vchNnMj9HrNMmnFSVzzZtCm/8NNwAABJj8r8QbvR8zdmyvyiVQjz1K7NSaHMdiDaNF3d1T2lZVp8R Qjzu58E8yZr8w6K9Kz0k3ZKXjQKeXOC02VraOqPPWZr8pN0AEY7WKZpG8/QoQmGmL6HfcqLLOSTiX twOe2apg==; 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 v4 05/25] media: i2c: imx258: Add regulator control Date: Sun, 14 Apr 2024 14:34:43 -0600 Message-ID: <20240414203503.18402-6-git@luigi311.com> In-Reply-To: <20240414203503.18402-1-git@luigi311.com> References: <20240414203503.18402-1-git@luigi311.com> Precedence: bulk X-Mailing-List: linux-media@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Authenticated-Id: personal@luigi311.com X-LSpam-Score: -3.0 (---) X-LSpam-Report: No, score=-3.0 required=5.0 tests=ARC_SIGNED=0.001,ARC_VALID=-0.1,BAYES_00=-1.9,DKIM_INVALID=0.1,DKIM_SIGNED=0.1,DMARC_MISSING=0.001,HEADER_FROM_DIFFERENT_DOMAINS=0.5,MAILING_LIST_MULTI=-1,RCVD_IN_DNSWL_LOW=-0.7,SPF_HELO_NONE=0.001,SPF_PASS=-0.001 autolearn=unavailable autolearn_force=no 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),