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[98.183.112.25]) by smtp.gmail.com with ESMTPSA id 46e09a7af769-70374f78d35sm1615131a34.23.2024.07.12.09.04.04 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 12 Jul 2024 09:04:04 -0700 (PDT) From: David Lechner To: Jonathan Cameron , Marius Cristea , Marcus Folkesson , Kent Gustavsson Cc: David Lechner , Liam Girdwood , Mark Brown , linux-iio@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH 2/6] iio: dac: mcp4728: use devm_regulator_get_enable_read_voltage() Date: Fri, 12 Jul 2024 11:03:53 -0500 Message-ID: <20240712-iio-regulator-refactor-round-3-v1-2-835017bae43d@baylibre.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240712-iio-regulator-refactor-round-3-v1-0-835017bae43d@baylibre.com> References: <20240712-iio-regulator-refactor-round-3-v1-0-835017bae43d@baylibre.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" X-Mailer: b4 0.14.0 Content-Transfer-Encoding: quoted-printable This makes use of the new devm_regulator_get_enable_read_voltage() helper function to reduce boilerplate code in the MCP4728 DAC driver. Signed-off-by: David Lechner --- drivers/iio/dac/mcp4728.c | 33 +++++++-------------------------- 1 file changed, 7 insertions(+), 26 deletions(-) diff --git a/drivers/iio/dac/mcp4728.c b/drivers/iio/dac/mcp4728.c index 300985beb35d..192175dc6419 100644 --- a/drivers/iio/dac/mcp4728.c +++ b/drivers/iio/dac/mcp4728.c @@ -84,7 +84,6 @@ enum mcp4728_scale { =20 struct mcp4728_data { struct i2c_client *client; - struct regulator *vdd_reg; bool powerdown; int scales_avail[MCP4728_N_SCALES * 2]; struct mcp4728_channel_data chdata[MCP4728_N_CHANNELS]; @@ -415,15 +414,9 @@ static void mcp4728_init_scale_avail(enum mcp4728_scal= e scale, int vref_mv, data->scales_avail[scale * 2 + 1] =3D value_micro; } =20 -static int mcp4728_init_scales_avail(struct mcp4728_data *data) +static int mcp4728_init_scales_avail(struct mcp4728_data *data, int vdd_mv) { - int ret; - - ret =3D regulator_get_voltage(data->vdd_reg); - if (ret < 0) - return ret; - - mcp4728_init_scale_avail(MCP4728_SCALE_VDD, ret / 1000, data); + mcp4728_init_scale_avail(MCP4728_SCALE_VDD, vdd_mv, data); mcp4728_init_scale_avail(MCP4728_SCALE_VINT_NO_GAIN, 2048, data); mcp4728_init_scale_avail(MCP4728_SCALE_VINT_GAIN_X2, 4096, data); =20 @@ -530,17 +523,12 @@ static int mcp4728_init_channels_data(struct mcp4728_= data *data) return 0; } =20 -static void mcp4728_reg_disable(void *reg) -{ - regulator_disable(reg); -} - static int mcp4728_probe(struct i2c_client *client) { const struct i2c_device_id *id =3D i2c_client_get_device_id(client); struct mcp4728_data *data; struct iio_dev *indio_dev; - int ret; + int ret, vdd_mv; =20 indio_dev =3D devm_iio_device_alloc(&client->dev, sizeof(*data)); if (!indio_dev) @@ -550,18 +538,11 @@ static int mcp4728_probe(struct i2c_client *client) i2c_set_clientdata(client, indio_dev); data->client =3D client; =20 - data->vdd_reg =3D devm_regulator_get(&client->dev, "vdd"); - if (IS_ERR(data->vdd_reg)) - return PTR_ERR(data->vdd_reg); - - ret =3D regulator_enable(data->vdd_reg); - if (ret) + ret =3D devm_regulator_get_enable_read_voltage(&client->dev, "vdd"); + if (ret < 0) return ret; =20 - ret =3D devm_add_action_or_reset(&client->dev, mcp4728_reg_disable, - data->vdd_reg); - if (ret) - return ret; + vdd_mv =3D ret / 1000; =20 /* * MCP4728 has internal EEPROM that save each channel boot @@ -575,7 +556,7 @@ static int mcp4728_probe(struct i2c_client *client) "failed to read mcp4728 current configuration\n"); } =20 - ret =3D mcp4728_init_scales_avail(data); + ret =3D mcp4728_init_scales_avail(data, vdd_mv); if (ret) { return dev_err_probe(&client->dev, ret, "failed to init scales\n"); --=20 2.43.0