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Message-Id: <20240429190046.24252-3-vassilisamir@gmail.com>
Date: Mon, 29 Apr 2024 21:00:38 +0200
From: Vasileios Amoiridis <vassilisamir@...il.com>
To: jic23@...nel.org
Cc: lars@...afoo.de,
andriy.shevchenko@...ux.intel.com,
ang.iglesiasg@...il.com,
mazziesaccount@...il.com,
ak@...klinger.de,
petre.rodan@...dimension.ro,
phil@...pberrypi.com,
579lpy@...il.com,
linus.walleij@...aro.org,
semen.protsenko@...aro.org,
linux-iio@...r.kernel.org,
linux-kernel@...r.kernel.org,
Vasileios Amoiridis <vassilisamir@...il.com>
Subject: [PATCH v5 02/10] iio: pressure: bmp280: Use BME prefix for BME280 specifics
Change the rest of the defines and function names that are
used specifically by the BME280 humidity sensor to BME280
as it is done for the rest of the BMP{0,1,3,5}80 sensors.
Signed-off-by: Vasileios Amoiridis <vassilisamir@...il.com>
---
drivers/iio/pressure/bmp280-core.c | 37 +++++++++++------------
drivers/iio/pressure/bmp280-regmap.c | 8 ++---
drivers/iio/pressure/bmp280.h | 45 +++++++++++++++-------------
3 files changed, 46 insertions(+), 44 deletions(-)
diff --git a/drivers/iio/pressure/bmp280-core.c b/drivers/iio/pressure/bmp280-core.c
index 1a3241a41768..edfa66953f87 100644
--- a/drivers/iio/pressure/bmp280-core.c
+++ b/drivers/iio/pressure/bmp280-core.c
@@ -235,14 +235,14 @@ static int bme280_read_calib(struct bmp280_data *data)
* Humidity data is only available on BME280.
*/
- ret = regmap_read(data->regmap, BMP280_REG_COMP_H1, &tmp);
+ ret = regmap_read(data->regmap, BME280_REG_COMP_H1, &tmp);
if (ret < 0) {
dev_err(dev, "failed to read H1 comp value\n");
return ret;
}
calib->H1 = tmp;
- ret = regmap_bulk_read(data->regmap, BMP280_REG_COMP_H2,
+ ret = regmap_bulk_read(data->regmap, BME280_REG_COMP_H2,
&data->le16, sizeof(data->le16));
if (ret < 0) {
dev_err(dev, "failed to read H2 comp value\n");
@@ -250,14 +250,14 @@ static int bme280_read_calib(struct bmp280_data *data)
}
calib->H2 = sign_extend32(le16_to_cpu(data->le16), 15);
- ret = regmap_read(data->regmap, BMP280_REG_COMP_H3, &tmp);
+ ret = regmap_read(data->regmap, BME280_REG_COMP_H3, &tmp);
if (ret < 0) {
dev_err(dev, "failed to read H3 comp value\n");
return ret;
}
calib->H3 = tmp;
- ret = regmap_bulk_read(data->regmap, BMP280_REG_COMP_H4,
+ ret = regmap_bulk_read(data->regmap, BME280_REG_COMP_H4,
&data->be16, sizeof(data->be16));
if (ret < 0) {
dev_err(dev, "failed to read H4 comp value\n");
@@ -266,15 +266,15 @@ static int bme280_read_calib(struct bmp280_data *data)
calib->H4 = sign_extend32(((be16_to_cpu(data->be16) >> 4) & 0xff0) |
(be16_to_cpu(data->be16) & 0xf), 11);
- ret = regmap_bulk_read(data->regmap, BMP280_REG_COMP_H5,
+ ret = regmap_bulk_read(data->regmap, BME280_REG_COMP_H5,
&data->le16, sizeof(data->le16));
if (ret < 0) {
dev_err(dev, "failed to read H5 comp value\n");
return ret;
}
- calib->H5 = sign_extend32(FIELD_GET(BMP280_COMP_H5_MASK, le16_to_cpu(data->le16)), 11);
+ calib->H5 = sign_extend32(FIELD_GET(BME280_COMP_H5_MASK, le16_to_cpu(data->le16)), 11);
- ret = regmap_read(data->regmap, BMP280_REG_COMP_H6, &tmp);
+ ret = regmap_read(data->regmap, BME280_REG_COMP_H6, &tmp);
if (ret < 0) {
dev_err(dev, "failed to read H6 comp value\n");
return ret;
@@ -290,7 +290,7 @@ static int bme280_read_calib(struct bmp280_data *data)
*
* Taken from BME280 datasheet, Section 4.2.3, "Compensation formula".
*/
-static u32 bmp280_compensate_humidity(struct bmp280_data *data,
+static u32 bme280_compensate_humidity(struct bmp280_data *data,
s32 adc_humidity)
{
struct bmp280_calib *calib = &data->calib.bmp280;
@@ -430,7 +430,7 @@ static int bmp280_read_press(struct bmp280_data *data,
return IIO_VAL_FRACTIONAL;
}
-static int bmp280_read_humid(struct bmp280_data *data, int *val, int *val2)
+static int bme280_read_humid(struct bmp280_data *data, int *val, int *val2)
{
u32 comp_humidity;
s32 adc_humidity;
@@ -441,7 +441,7 @@ static int bmp280_read_humid(struct bmp280_data *data, int *val, int *val2)
if (ret < 0)
return ret;
- ret = regmap_bulk_read(data->regmap, BMP280_REG_HUMIDITY_MSB,
+ ret = regmap_bulk_read(data->regmap, BME280_REG_HUMIDITY_MSB,
&data->be16, sizeof(data->be16));
if (ret < 0) {
dev_err(data->dev, "failed to read humidity\n");
@@ -454,7 +454,7 @@ static int bmp280_read_humid(struct bmp280_data *data, int *val, int *val2)
dev_err(data->dev, "reading humidity skipped\n");
return -EIO;
}
- comp_humidity = bmp280_compensate_humidity(data, adc_humidity);
+ comp_humidity = bme280_compensate_humidity(data, adc_humidity);
*val = comp_humidity * 1000 / 1024;
@@ -538,7 +538,7 @@ static int bmp280_read_raw(struct iio_dev *indio_dev,
return ret;
}
-static int bmp280_write_oversampling_ratio_humid(struct bmp280_data *data,
+static int bme280_write_oversampling_ratio_humid(struct bmp280_data *data,
int val)
{
const int *avail = data->chip_info->oversampling_humid_avail;
@@ -682,7 +682,7 @@ static int bmp280_write_raw(struct iio_dev *indio_dev,
mutex_lock(&data->lock);
switch (chan->type) {
case IIO_HUMIDITYRELATIVE:
- ret = bmp280_write_oversampling_ratio_humid(data, val);
+ ret = bme280_write_oversampling_ratio_humid(data, val);
break;
case IIO_PRESSURE:
ret = bmp280_write_oversampling_ratio_press(data, val);
@@ -832,16 +832,15 @@ EXPORT_SYMBOL_NS(bmp280_chip_info, IIO_BMP280);
static int bme280_chip_config(struct bmp280_data *data)
{
- u8 osrs = FIELD_PREP(BMP280_OSRS_HUMIDITY_MASK, data->oversampling_humid + 1);
+ u8 osrs = FIELD_PREP(BME280_OSRS_HUMIDITY_MASK, data->oversampling_humid + 1);
int ret;
/*
* Oversampling of humidity must be set before oversampling of
* temperature/pressure is set to become effective.
*/
- ret = regmap_update_bits(data->regmap, BMP280_REG_CTRL_HUMIDITY,
- BMP280_OSRS_HUMIDITY_MASK, osrs);
-
+ ret = regmap_update_bits(data->regmap, BME280_REG_CTRL_HUMIDITY,
+ BME280_OSRS_HUMIDITY_MASK, osrs);
if (ret < 0)
return ret;
@@ -869,12 +868,12 @@ const struct bmp280_chip_info bme280_chip_info = {
.oversampling_humid_avail = bmp280_oversampling_avail,
.num_oversampling_humid_avail = ARRAY_SIZE(bmp280_oversampling_avail),
- .oversampling_humid_default = BMP280_OSRS_HUMIDITY_16X - 1,
+ .oversampling_humid_default = BME280_OSRS_HUMIDITY_16X - 1,
.chip_config = bme280_chip_config,
.read_temp = bmp280_read_temp,
.read_press = bmp280_read_press,
- .read_humid = bmp280_read_humid,
+ .read_humid = bme280_read_humid,
.read_calib = bme280_read_calib,
};
EXPORT_SYMBOL_NS(bme280_chip_info, IIO_BMP280);
diff --git a/drivers/iio/pressure/bmp280-regmap.c b/drivers/iio/pressure/bmp280-regmap.c
index 3ee56720428c..fa52839474b1 100644
--- a/drivers/iio/pressure/bmp280-regmap.c
+++ b/drivers/iio/pressure/bmp280-regmap.c
@@ -45,7 +45,7 @@ static bool bmp280_is_writeable_reg(struct device *dev, unsigned int reg)
{
switch (reg) {
case BMP280_REG_CONFIG:
- case BMP280_REG_CTRL_HUMIDITY:
+ case BME280_REG_CTRL_HUMIDITY:
case BMP280_REG_CTRL_MEAS:
case BMP280_REG_RESET:
return true;
@@ -57,8 +57,8 @@ static bool bmp280_is_writeable_reg(struct device *dev, unsigned int reg)
static bool bmp280_is_volatile_reg(struct device *dev, unsigned int reg)
{
switch (reg) {
- case BMP280_REG_HUMIDITY_LSB:
- case BMP280_REG_HUMIDITY_MSB:
+ case BME280_REG_HUMIDITY_LSB:
+ case BME280_REG_HUMIDITY_MSB:
case BMP280_REG_TEMP_XLSB:
case BMP280_REG_TEMP_LSB:
case BMP280_REG_TEMP_MSB:
@@ -167,7 +167,7 @@ const struct regmap_config bmp280_regmap_config = {
.reg_bits = 8,
.val_bits = 8,
- .max_register = BMP280_REG_HUMIDITY_LSB,
+ .max_register = BME280_REG_HUMIDITY_LSB,
.cache_type = REGCACHE_RBTREE,
.writeable_reg = bmp280_is_writeable_reg,
diff --git a/drivers/iio/pressure/bmp280.h b/drivers/iio/pressure/bmp280.h
index 5812a344ed8e..91d4457a9230 100644
--- a/drivers/iio/pressure/bmp280.h
+++ b/drivers/iio/pressure/bmp280.h
@@ -192,8 +192,6 @@
#define BMP380_PRESS_SKIPPED 0x800000
/* BMP280 specific registers */
-#define BMP280_REG_HUMIDITY_LSB 0xFE
-#define BMP280_REG_HUMIDITY_MSB 0xFD
#define BMP280_REG_TEMP_XLSB 0xFC
#define BMP280_REG_TEMP_LSB 0xFB
#define BMP280_REG_TEMP_MSB 0xFA
@@ -207,15 +205,6 @@
#define BMP280_REG_CONFIG 0xF5
#define BMP280_REG_CTRL_MEAS 0xF4
#define BMP280_REG_STATUS 0xF3
-#define BMP280_REG_CTRL_HUMIDITY 0xF2
-
-/* Due to non linear mapping, and data sizes we can't do a bulk read */
-#define BMP280_REG_COMP_H1 0xA1
-#define BMP280_REG_COMP_H2 0xE1
-#define BMP280_REG_COMP_H3 0xE3
-#define BMP280_REG_COMP_H4 0xE4
-#define BMP280_REG_COMP_H5 0xE5
-#define BMP280_REG_COMP_H6 0xE7
#define BMP280_REG_COMP_TEMP_START 0x88
#define BMP280_COMP_TEMP_REG_COUNT 6
@@ -223,8 +212,6 @@
#define BMP280_REG_COMP_PRESS_START 0x8E
#define BMP280_COMP_PRESS_REG_COUNT 18
-#define BMP280_COMP_H5_MASK GENMASK(15, 4)
-
#define BMP280_CONTIGUOUS_CALIB_REGS (BMP280_COMP_TEMP_REG_COUNT + \
BMP280_COMP_PRESS_REG_COUNT)
@@ -235,14 +222,6 @@
#define BMP280_FILTER_8X 3
#define BMP280_FILTER_16X 4
-#define BMP280_OSRS_HUMIDITY_MASK GENMASK(2, 0)
-#define BMP280_OSRS_HUMIDITY_SKIP 0
-#define BMP280_OSRS_HUMIDITY_1X 1
-#define BMP280_OSRS_HUMIDITY_2X 2
-#define BMP280_OSRS_HUMIDITY_4X 3
-#define BMP280_OSRS_HUMIDITY_8X 4
-#define BMP280_OSRS_HUMIDITY_16X 5
-
#define BMP280_OSRS_TEMP_MASK GENMASK(7, 5)
#define BMP280_OSRS_TEMP_SKIP 0
#define BMP280_OSRS_TEMP_1X 1
@@ -264,6 +243,30 @@
#define BMP280_MODE_FORCED 1
#define BMP280_MODE_NORMAL 3
+/* BME280 specific registers */
+#define BME280_REG_HUMIDITY_LSB 0xFE
+#define BME280_REG_HUMIDITY_MSB 0xFD
+
+#define BME280_REG_CTRL_HUMIDITY 0xF2
+
+/* Due to non linear mapping, and data sizes we can't do a bulk read */
+#define BME280_REG_COMP_H1 0xA1
+#define BME280_REG_COMP_H2 0xE1
+#define BME280_REG_COMP_H3 0xE3
+#define BME280_REG_COMP_H4 0xE4
+#define BME280_REG_COMP_H5 0xE5
+#define BME280_REG_COMP_H6 0xE7
+
+#define BME280_COMP_H5_MASK GENMASK(15, 4)
+
+#define BME280_OSRS_HUMIDITY_MASK GENMASK(2, 0)
+#define BME280_OSRS_HUMIDITY_SKIP 0
+#define BME280_OSRS_HUMIDITY_1X 1
+#define BME280_OSRS_HUMIDITY_2X 2
+#define BME280_OSRS_HUMIDITY_4X 3
+#define BME280_OSRS_HUMIDITY_8X 4
+#define BME280_OSRS_HUMIDITY_16X 5
+
/* BMP180 specific registers */
#define BMP180_REG_OUT_XLSB 0xF8
#define BMP180_REG_OUT_LSB 0xF7
--
2.25.1
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