[PATCH 4.9 28/68] iio: gyro: st_gyro: inline per-sensor data

Greg Kroah-Hartman
2020-02-03T16:25:46Z

From: Linus Walleij <linus.walleij@linaro.org>

[ Upstream commit d8594fa22a3f7c294639d9aa2959d63e66d9437c ]

We have #defines for all the individual sensor registers and
value/mask pairs #defined at the top of the file and used at
exactly one spot.

This is usually good if the #defines give a meaning to the
opaque magic numbers.

However in this case, the semantic meaning is inherent in the
name of the C99-addressable fields, and that means duplication
of information, and only makes the code hard to maintain since
you every time have to add a new #define AND update the site
where it is to be used.

Get rid of the #defines and just open code the values into the
appropriate struct elements. Make sure to explicitly address
the .hz and .value fields in the st_sensor_odr_avl struct
so that the meaning of all values is clear.

This patch is purely syntactic should have no semantic effect.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/iio/gyro/st_gyro_core.c | 205 ++++++++++----------------------
1 file changed, 66 insertions(+), 139 deletions(-)

diff --git a/drivers/iio/gyro/st_gyro_core.c b/drivers/iio/gyro/st_gyro_core.c
index aea034d8fe0fb..2a42b3d583e85 100644
--- a/drivers/iio/gyro/st_gyro_core.c
+++ b/drivers/iio/gyro/st_gyro_core.c
@@ -39,79 +39,6 @@
#define ST_GYRO_FS_AVL_500DPS 500
#define ST_GYRO_FS_AVL_2000DPS 2000

-/* CUSTOM VALUES FOR SENSOR 1 */
-#define ST_GYRO_1_WAI_EXP 0xd3
-#define ST_GYRO_1_ODR_ADDR 0x20
-#define ST_GYRO_1_ODR_MASK 0xc0
-#define ST_GYRO_1_ODR_AVL_100HZ_VAL 0x00
-#define ST_GYRO_1_ODR_AVL_200HZ_VAL 0x01
-#define ST_GYRO_1_ODR_AVL_400HZ_VAL 0x02
-#define ST_GYRO_1_ODR_AVL_800HZ_VAL 0x03
-#define ST_GYRO_1_PW_ADDR 0x20
-#define ST_GYRO_1_PW_MASK 0x08
-#define ST_GYRO_1_FS_ADDR 0x23
-#define ST_GYRO_1_FS_MASK 0x30
-#define ST_GYRO_1_FS_AVL_250_VAL 0x00
-#define ST_GYRO_1_FS_AVL_500_VAL 0x01
-#define ST_GYRO_1_FS_AVL_2000_VAL 0x02
-#define ST_GYRO_1_FS_AVL_250_GAIN IIO_DEGREE_TO_RAD(8750)
-#define ST_GYRO_1_FS_AVL_500_GAIN IIO_DEGREE_TO_RAD(17500)
-#define ST_GYRO_1_FS_AVL_2000_GAIN IIO_DEGREE_TO_RAD(70000)
-#define ST_GYRO_1_BDU_ADDR 0x23
-#define ST_GYRO_1_BDU_MASK 0x80
-#define ST_GYRO_1_DRDY_IRQ_ADDR 0x22
-#define ST_GYRO_1_DRDY_IRQ_INT2_MASK 0x08
-#define ST_GYRO_1_MULTIREAD_BIT true
-
-/* CUSTOM VALUES FOR SENSOR 2 */
-#define ST_GYRO_2_WAI_EXP 0xd4
-#define ST_GYRO_2_ODR_ADDR 0x20
-#define ST_GYRO_2_ODR_MASK 0xc0
-#define ST_GYRO_2_ODR_AVL_95HZ_VAL 0x00
-#define ST_GYRO_2_ODR_AVL_190HZ_VAL 0x01
-#define ST_GYRO_2_ODR_AVL_380HZ_VAL 0x02
-#define ST_GYRO_2_ODR_AVL_760HZ_VAL 0x03
-#define ST_GYRO_2_PW_ADDR 0x20
-#define ST_GYRO_2_PW_MASK 0x08
-#define ST_GYRO_2_FS_ADDR 0x23
-#define ST_GYRO_2_FS_MASK 0x30
-#define ST_GYRO_2_FS_AVL_250_VAL 0x00
-#define ST_GYRO_2_FS_AVL_500_VAL 0x01
-#define ST_GYRO_2_FS_AVL_2000_VAL 0x02
-#define ST_GYRO_2_FS_AVL_250_GAIN IIO_DEGREE_TO_RAD(8750)
-#define ST_GYRO_2_FS_AVL_500_GAIN IIO_DEGREE_TO_RAD(17500)
-#define ST_GYRO_2_FS_AVL_2000_GAIN IIO_DEGREE_TO_RAD(70000)
-#define ST_GYRO_2_BDU_ADDR 0x23
-#define ST_GYRO_2_BDU_MASK 0x80
-#define ST_GYRO_2_DRDY_IRQ_ADDR 0x22
-#define ST_GYRO_2_DRDY_IRQ_INT2_MASK 0x08
-#define ST_GYRO_2_MULTIREAD_BIT true
-
-/* CUSTOM VALUES FOR SENSOR 3 */
-#define ST_GYRO_3_WAI_EXP 0xd7
-#define ST_GYRO_3_ODR_ADDR 0x20
-#define ST_GYRO_3_ODR_MASK 0xc0
-#define ST_GYRO_3_ODR_AVL_95HZ_VAL 0x00
-#define ST_GYRO_3_ODR_AVL_190HZ_VAL 0x01
-#define ST_GYRO_3_ODR_AVL_380HZ_VAL 0x02
-#define ST_GYRO_3_ODR_AVL_760HZ_VAL 0x03
-#define ST_GYRO_3_PW_ADDR 0x20
-#define ST_GYRO_3_PW_MASK 0x08
-#define ST_GYRO_3_FS_ADDR 0x23
-#define ST_GYRO_3_FS_MASK 0x30
-#define ST_GYRO_3_FS_AVL_250_VAL 0x00
-#define ST_GYRO_3_FS_AVL_500_VAL 0x01
-#define ST_GYRO_3_FS_AVL_2000_VAL 0x02
-#define ST_GYRO_3_FS_AVL_250_GAIN IIO_DEGREE_TO_RAD(8750)
-#define ST_GYRO_3_FS_AVL_500_GAIN IIO_DEGREE_TO_RAD(17500)
-#define ST_GYRO_3_FS_AVL_2000_GAIN IIO_DEGREE_TO_RAD(70000)
-#define ST_GYRO_3_BDU_ADDR 0x23
-#define ST_GYRO_3_BDU_MASK 0x80
-#define ST_GYRO_3_DRDY_IRQ_ADDR 0x22
-#define ST_GYRO_3_DRDY_IRQ_INT2_MASK 0x08
-#define ST_GYRO_3_MULTIREAD_BIT true
-
-
static const struct iio_chan_spec st_gyro_16bit_channels[] = {
ST_SENSORS_LSM_CHANNELS(IIO_ANGL_VEL,
BIT(IIO_CHAN_INFO_RAW) | BIT(IIO_CHAN_INFO_SCALE),
@@ -130,7 +57,7 @@ static const struct iio_chan_spec st_gyro_16bit_channels[] = {

static const struct st_sensor_settings st_gyro_sensors_settings[] = {
{
- .wai = ST_GYRO_1_WAI_EXP,
+ .wai = 0xd3,
.wai_addr = ST_SENSORS_DEFAULT_WAI_ADDRESS,
.sensors_supported = {
[0] = L3G4200D_GYRO_DEV_NAME,
@@ -138,18 +65,18 @@ static const struct st_sensor_settings st_gyro_sensors_settings[] = {
},
.ch = (struct iio_chan_spec *)st_gyro_16bit_channels,
.odr = {
- .addr = ST_GYRO_1_ODR_ADDR,
- .mask = ST_GYRO_1_ODR_MASK,
+ .addr = 0x20,
+ .mask = 0xc0,
.odr_avl = {
- { 100, ST_GYRO_1_ODR_AVL_100HZ_VAL, },
- { 200, ST_GYRO_1_ODR_AVL_200HZ_VAL, },
- { 400, ST_GYRO_1_ODR_AVL_400HZ_VAL, },
- { 800, ST_GYRO_1_ODR_AVL_800HZ_VAL, },
+ { .hz = 100, .value = 0x00, },
+ { .hz = 200, .value = 0x01, },
+ { .hz = 400, .value = 0x02, },
+ { .hz = 800, .value = 0x03, },
},
},
.pw = {
- .addr = ST_GYRO_1_PW_ADDR,
- .mask = ST_GYRO_1_PW_MASK,
+ .addr = 0x20,
+ .mask = 0x08,
.value_on = ST_SENSORS_DEFAULT_POWER_ON_VALUE,
.value_off = ST_SENSORS_DEFAULT_POWER_OFF_VALUE,
},
@@ -158,33 +85,33 @@ static const struct st_sensor_settings st_gyro_sensors_settings[] = {
.mask = ST_SENSORS_DEFAULT_AXIS_MASK,
},
.fs = {
- .addr = ST_GYRO_1_FS_ADDR,
- .mask = ST_GYRO_1_FS_MASK,
+ .addr = 0x23,
+ .mask = 0x30,
.fs_avl = {
[0] = {
.num = ST_GYRO_FS_AVL_250DPS,
- .value = ST_GYRO_1_FS_AVL_250_VAL,
- .gain = ST_GYRO_1_FS_AVL_250_GAIN,
+ .value = 0x00,
+ .gain = IIO_DEGREE_TO_RAD(8750),
},
[1] = {
.num = ST_GYRO_FS_AVL_500DPS,
- .value = ST_GYRO_1_FS_AVL_500_VAL,
- .gain = ST_GYRO_1_FS_AVL_500_GAIN,
+ .value = 0x01,
+ .gain = IIO_DEGREE_TO_RAD(17500),
},
[2] = {
.num = ST_GYRO_FS_AVL_2000DPS,
- .value = ST_GYRO_1_FS_AVL_2000_VAL,
- .gain = ST_GYRO_1_FS_AVL_2000_GAIN,
+ .value = 0x02,
+ .gain = IIO_DEGREE_TO_RAD(70000),
},
},
},
.bdu = {
- .addr = ST_GYRO_1_BDU_ADDR,
- .mask = ST_GYRO_1_BDU_MASK,
+ .addr = 0x23,
+ .mask = 0x80,
},
.drdy_irq = {
- .addr = ST_GYRO_1_DRDY_IRQ_ADDR,
- .mask_int2 = ST_GYRO_1_DRDY_IRQ_INT2_MASK,
+ .addr = 0x22,
+ .mask_int2 = 0x08,
/*
* The sensor has IHL (active low) and open
* drain settings, but only for INT1 and not
@@ -192,11 +119,11 @@ static const struct st_sensor_settings st_gyro_sensors_settings[] = {
*/
.addr_stat_drdy = ST_SENSORS_DEFAULT_STAT_ADDR,
},
- .multi_read_bit = ST_GYRO_1_MULTIREAD_BIT,
+ .multi_read_bit = true,
.bootime = 2,
},
{
- .wai = ST_GYRO_2_WAI_EXP,
+ .wai = 0xd4,
.wai_addr = ST_SENSORS_DEFAULT_WAI_ADDRESS,
.sensors_supported = {
[0] = L3GD20_GYRO_DEV_NAME,
@@ -208,18 +135,18 @@ static const struct st_sensor_settings st_gyro_sensors_settings[] = {
},
.ch = (struct iio_chan_spec *)st_gyro_16bit_channels,
.odr = {
- .addr = ST_GYRO_2_ODR_ADDR,
- .mask = ST_GYRO_2_ODR_MASK,
+ .addr = 0x20,
+ .mask = 0xc0,
.odr_avl = {
- { 95, ST_GYRO_2_ODR_AVL_95HZ_VAL, },
- { 190, ST_GYRO_2_ODR_AVL_190HZ_VAL, },
- { 380, ST_GYRO_2_ODR_AVL_380HZ_VAL, },
- { 760, ST_GYRO_2_ODR_AVL_760HZ_VAL, },
+ { .hz = 95, .value = 0x00, },
+ { .hz = 190, .value = 0x01, },
+ { .hz = 380, .value = 0x02, },
+ { .hz = 760, .value = 0x03, },
},
},
.pw = {
- .addr = ST_GYRO_2_PW_ADDR,
- .mask = ST_GYRO_2_PW_MASK,
+ .addr = 0x20,
+ .mask = 0x08,
.value_on = ST_SENSORS_DEFAULT_POWER_ON_VALUE,
.value_off = ST_SENSORS_DEFAULT_POWER_OFF_VALUE,
},
@@ -228,33 +155,33 @@ static const struct st_sensor_settings st_gyro_sensors_settings[] = {
.mask = ST_SENSORS_DEFAULT_AXIS_MASK,
},
.fs = {
- .addr = ST_GYRO_2_FS_ADDR,
- .mask = ST_GYRO_2_FS_MASK,
+ .addr = 0x23,
+ .mask = 0x30,
.fs_avl = {
[0] = {
.num = ST_GYRO_FS_AVL_250DPS,
- .value = ST_GYRO_2_FS_AVL_250_VAL,
- .gain = ST_GYRO_2_FS_AVL_250_GAIN,
+ .value = 0x00,
+ .gain = IIO_DEGREE_TO_RAD(8750),
},
[1] = {
.num = ST_GYRO_FS_AVL_500DPS,
- .value = ST_GYRO_2_FS_AVL_500_VAL,
- .gain = ST_GYRO_2_FS_AVL_500_GAIN,
+ .value = 0x01,
+ .gain = IIO_DEGREE_TO_RAD(17500),
},
[2] = {
.num = ST_GYRO_FS_AVL_2000DPS,
- .value = ST_GYRO_2_FS_AVL_2000_VAL,
- .gain = ST_GYRO_2_FS_AVL_2000_GAIN,
+ .value = 0x02,
+ .gain = IIO_DEGREE_TO_RAD(70000),
},
},
},
.bdu = {
- .addr = ST_GYRO_2_BDU_ADDR,
- .mask = ST_GYRO_2_BDU_MASK,
+ .addr = 0x23,
+ .mask = 0x80,
},
.drdy_irq = {
- .addr = ST_GYRO_2_DRDY_IRQ_ADDR,
- .mask_int2 = ST_GYRO_2_DRDY_IRQ_INT2_MASK,
+ .addr = 0x22,
+ .mask_int2 = 0x08,
/*
* The sensor has IHL (active low) and open
* drain settings, but only for INT1 and not
@@ -262,29 +189,29 @@ static const struct st_sensor_settings st_gyro_sensors_settings[] = {
*/
.addr_stat_drdy = ST_SENSORS_DEFAULT_STAT_ADDR,
},
- .multi_read_bit = ST_GYRO_2_MULTIREAD_BIT,
+ .multi_read_bit = true,
.bootime = 2,
},
{
- .wai = ST_GYRO_3_WAI_EXP,
+ .wai = 0xd7,
.wai_addr = ST_SENSORS_DEFAULT_WAI_ADDRESS,
.sensors_supported = {
[0] = L3GD20_GYRO_DEV_NAME,
},
.ch = (struct iio_chan_spec *)st_gyro_16bit_channels,
.odr = {
- .addr = ST_GYRO_3_ODR_ADDR,
- .mask = ST_GYRO_3_ODR_MASK,
+ .addr = 0x20,
+ .mask = 0xc0,
.odr_avl = {
- { 95, ST_GYRO_3_ODR_AVL_95HZ_VAL, },
- { 190, ST_GYRO_3_ODR_AVL_190HZ_VAL, },
- { 380, ST_GYRO_3_ODR_AVL_380HZ_VAL, },
- { 760, ST_GYRO_3_ODR_AVL_760HZ_VAL, },
+ { .hz = 95, .value = 0x00, },
+ { .hz = 190, .value = 0x01, },
+ { .hz = 380, .value = 0x02, },
+ { .hz = 760, .value = 0x03, },
},
},
.pw = {
- .addr = ST_GYRO_3_PW_ADDR,
- .mask = ST_GYRO_3_PW_MASK,
+ .addr = 0x20,
+ .mask = 0x08,
.value_on = ST_SENSORS_DEFAULT_POWER_ON_VALUE,
.value_off = ST_SENSORS_DEFAULT_POWER_OFF_VALUE,
},
@@ -293,33 +220,33 @@ static const struct st_sensor_settings st_gyro_sensors_settings[] = {
.mask = ST_SENSORS_DEFAULT_AXIS_MASK,
},
.fs = {
- .addr = ST_GYRO_3_FS_ADDR,
- .mask = ST_GYRO_3_FS_MASK,
+ .addr = 0x23,
+ .mask = 0x30,
.fs_avl = {
[0] = {
.num = ST_GYRO_FS_AVL_250DPS,
- .value = ST_GYRO_3_FS_AVL_250_VAL,
- .gain = ST_GYRO_3_FS_AVL_250_GAIN,
+ .value = 0x00,
+ .gain = IIO_DEGREE_TO_RAD(8750),
},
[1] = {
.num = ST_GYRO_FS_AVL_500DPS,
- .value = ST_GYRO_3_FS_AVL_500_VAL,
- .gain = ST_GYRO_3_FS_AVL_500_GAIN,
+ .value = 0x01,
+ .gain = IIO_DEGREE_TO_RAD(17500),
},
[2] = {
.num = ST_GYRO_FS_AVL_2000DPS,
- .value = ST_GYRO_3_FS_AVL_2000_VAL,
- .gain = ST_GYRO_3_FS_AVL_2000_GAIN,
+ .value = 0x02,
+ .gain = IIO_DEGREE_TO_RAD(70000),
},
},
},
.bdu = {
- .addr = ST_GYRO_3_BDU_ADDR,
- .mask = ST_GYRO_3_BDU_MASK,
+ .addr = 0x23,
+ .mask = 0x80,
},
.drdy_irq = {
- .addr = ST_GYRO_3_DRDY_IRQ_ADDR,
- .mask_int2 = ST_GYRO_3_DRDY_IRQ_INT2_MASK,
+ .addr = 0x22,
+ .mask_int2 = 0x08,
/*
* The sensor has IHL (active low) and open
* drain settings, but only for INT1 and not
@@ -327,7 +254,7 @@ static const struct st_sensor_settings st_gyro_sensors_settings[] = {
*/
.addr_stat_drdy = ST_SENSORS_DEFAULT_STAT_ADDR,
},
- .multi_read_bit = ST_GYRO_3_MULTIREAD_BIT,
+ .multi_read_bit = true,
.bootime = 2,
},
};
--
2.20.1