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authorGreg Kroah-Hartman <gregkh@linuxfoundation.org>2016-11-28 08:26:16 +0100
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2016-11-28 08:26:16 +0100
commit2d2139c5c746ec61024fdfa9c36e4e034bb18e59 (patch)
treeb3f4a9b0dd5eae44dfe58d260b78e06c2fb41361 /drivers
parent469554a148e86aa761fbbfcbca496be64f38568a (diff)
parent6f771d0b338d59c492699814b0fe554f9d1ee27c (diff)
Merge tag 'iio-for-4.10d' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-next
Jonathan writes: Fourth set of IIO new device support, features and cleaups for the 4.10 cycle. Probably the final set before the merge window unless things get significantly delayed. New device support * STM32 ADC core - new driver. Interesting device with up to 3 ADCs with complex triggering options that will follow later. Note split into an 'mfd like' core that handles the interrupt sharing etc between the various instances present and a per ADC section that is instantiated as many times as needed. - device tree bindings. Cleanups and minor fixes * st_accel - inline per sensor data as the defines don't add any meaning and make it much harder to check if a given sensor has the right values. * hid-magnetometer - sort out the associations of the associated attributes with the two types.
Diffstat (limited to 'drivers')
-rw-r--r--drivers/iio/accel/st_accel_core.c602
-rw-r--r--drivers/iio/adc/Kconfig22
-rw-r--r--drivers/iio/adc/Makefile2
-rw-r--r--drivers/iio/adc/stm32-adc-core.c303
-rw-r--r--drivers/iio/adc/stm32-adc-core.h52
-rw-r--r--drivers/iio/adc/stm32-adc.c518
-rw-r--r--drivers/iio/light/tsl2583.c2
-rw-r--r--drivers/iio/magnetometer/hid-sensor-magn-3d.c147
8 files changed, 1216 insertions, 432 deletions
diff --git a/drivers/iio/accel/st_accel_core.c b/drivers/iio/accel/st_accel_core.c
index bdb619a28a4e..f6b6d42385e1 100644
--- a/drivers/iio/accel/st_accel_core.c
+++ b/drivers/iio/accel/st_accel_core.c
@@ -43,200 +43,6 @@
#define ST_ACCEL_FS_AVL_200G 200
#define ST_ACCEL_FS_AVL_400G 400
-/* CUSTOM VALUES FOR SENSOR 1 */
-#define ST_ACCEL_1_WAI_EXP 0x33
-#define ST_ACCEL_1_ODR_ADDR 0x20
-#define ST_ACCEL_1_ODR_MASK 0xf0
-#define ST_ACCEL_1_ODR_AVL_1HZ_VAL 0x01
-#define ST_ACCEL_1_ODR_AVL_10HZ_VAL 0x02
-#define ST_ACCEL_1_ODR_AVL_25HZ_VAL 0x03
-#define ST_ACCEL_1_ODR_AVL_50HZ_VAL 0x04
-#define ST_ACCEL_1_ODR_AVL_100HZ_VAL 0x05
-#define ST_ACCEL_1_ODR_AVL_200HZ_VAL 0x06
-#define ST_ACCEL_1_ODR_AVL_400HZ_VAL 0x07
-#define ST_ACCEL_1_ODR_AVL_1600HZ_VAL 0x08
-#define ST_ACCEL_1_FS_ADDR 0x23
-#define ST_ACCEL_1_FS_MASK 0x30
-#define ST_ACCEL_1_FS_AVL_2_VAL 0x00
-#define ST_ACCEL_1_FS_AVL_4_VAL 0x01
-#define ST_ACCEL_1_FS_AVL_8_VAL 0x02
-#define ST_ACCEL_1_FS_AVL_16_VAL 0x03
-#define ST_ACCEL_1_FS_AVL_2_GAIN IIO_G_TO_M_S_2(1000)
-#define ST_ACCEL_1_FS_AVL_4_GAIN IIO_G_TO_M_S_2(2000)
-#define ST_ACCEL_1_FS_AVL_8_GAIN IIO_G_TO_M_S_2(4000)
-#define ST_ACCEL_1_FS_AVL_16_GAIN IIO_G_TO_M_S_2(12000)
-#define ST_ACCEL_1_BDU_ADDR 0x23
-#define ST_ACCEL_1_BDU_MASK 0x80
-#define ST_ACCEL_1_DRDY_IRQ_ADDR 0x22
-#define ST_ACCEL_1_DRDY_IRQ_INT1_MASK 0x10
-#define ST_ACCEL_1_DRDY_IRQ_INT2_MASK 0x08
-#define ST_ACCEL_1_IHL_IRQ_ADDR 0x25
-#define ST_ACCEL_1_IHL_IRQ_MASK 0x02
-#define ST_ACCEL_1_MULTIREAD_BIT true
-
-/* CUSTOM VALUES FOR SENSOR 2 */
-#define ST_ACCEL_2_WAI_EXP 0x32
-#define ST_ACCEL_2_ODR_ADDR 0x20
-#define ST_ACCEL_2_ODR_MASK 0x18
-#define ST_ACCEL_2_ODR_AVL_50HZ_VAL 0x00
-#define ST_ACCEL_2_ODR_AVL_100HZ_VAL 0x01
-#define ST_ACCEL_2_ODR_AVL_400HZ_VAL 0x02
-#define ST_ACCEL_2_ODR_AVL_1000HZ_VAL 0x03
-#define ST_ACCEL_2_PW_ADDR 0x20
-#define ST_ACCEL_2_PW_MASK 0xe0
-#define ST_ACCEL_2_FS_ADDR 0x23
-#define ST_ACCEL_2_FS_MASK 0x30
-#define ST_ACCEL_2_FS_AVL_2_VAL 0X00
-#define ST_ACCEL_2_FS_AVL_4_VAL 0X01
-#define ST_ACCEL_2_FS_AVL_8_VAL 0x03
-#define ST_ACCEL_2_FS_AVL_2_GAIN IIO_G_TO_M_S_2(1000)
-#define ST_ACCEL_2_FS_AVL_4_GAIN IIO_G_TO_M_S_2(2000)
-#define ST_ACCEL_2_FS_AVL_8_GAIN IIO_G_TO_M_S_2(3900)
-#define ST_ACCEL_2_BDU_ADDR 0x23
-#define ST_ACCEL_2_BDU_MASK 0x80
-#define ST_ACCEL_2_DRDY_IRQ_ADDR 0x22
-#define ST_ACCEL_2_DRDY_IRQ_INT1_MASK 0x02
-#define ST_ACCEL_2_DRDY_IRQ_INT2_MASK 0x10
-#define ST_ACCEL_2_IHL_IRQ_ADDR 0x22
-#define ST_ACCEL_2_IHL_IRQ_MASK 0x80
-#define ST_ACCEL_2_OD_IRQ_ADDR 0x22
-#define ST_ACCEL_2_OD_IRQ_MASK 0x40
-#define ST_ACCEL_2_MULTIREAD_BIT true
-
-/* CUSTOM VALUES FOR SENSOR 3 */
-#define ST_ACCEL_3_WAI_EXP 0x40
-#define ST_ACCEL_3_ODR_ADDR 0x20
-#define ST_ACCEL_3_ODR_MASK 0xf0
-#define ST_ACCEL_3_ODR_AVL_3HZ_VAL 0x01
-#define ST_ACCEL_3_ODR_AVL_6HZ_VAL 0x02
-#define ST_ACCEL_3_ODR_AVL_12HZ_VAL 0x03
-#define ST_ACCEL_3_ODR_AVL_25HZ_VAL 0x04
-#define ST_ACCEL_3_ODR_AVL_50HZ_VAL 0x05
-#define ST_ACCEL_3_ODR_AVL_100HZ_VAL 0x06
-#define ST_ACCEL_3_ODR_AVL_200HZ_VAL 0x07
-#define ST_ACCEL_3_ODR_AVL_400HZ_VAL 0x08
-#define ST_ACCEL_3_ODR_AVL_800HZ_VAL 0x09
-#define ST_ACCEL_3_ODR_AVL_1600HZ_VAL 0x0a
-#define ST_ACCEL_3_FS_ADDR 0x24
-#define ST_ACCEL_3_FS_MASK 0x38
-#define ST_ACCEL_3_FS_AVL_2_VAL 0X00
-#define ST_ACCEL_3_FS_AVL_4_VAL 0X01
-#define ST_ACCEL_3_FS_AVL_6_VAL 0x02
-#define ST_ACCEL_3_FS_AVL_8_VAL 0x03
-#define ST_ACCEL_3_FS_AVL_16_VAL 0x04
-#define ST_ACCEL_3_FS_AVL_2_GAIN IIO_G_TO_M_S_2(61)
-#define ST_ACCEL_3_FS_AVL_4_GAIN IIO_G_TO_M_S_2(122)
-#define ST_ACCEL_3_FS_AVL_6_GAIN IIO_G_TO_M_S_2(183)
-#define ST_ACCEL_3_FS_AVL_8_GAIN IIO_G_TO_M_S_2(244)
-#define ST_ACCEL_3_FS_AVL_16_GAIN IIO_G_TO_M_S_2(732)
-#define ST_ACCEL_3_BDU_ADDR 0x20
-#define ST_ACCEL_3_BDU_MASK 0x08
-#define ST_ACCEL_3_DRDY_IRQ_ADDR 0x23
-#define ST_ACCEL_3_DRDY_IRQ_INT1_MASK 0x80
-#define ST_ACCEL_3_DRDY_IRQ_INT2_MASK 0x00
-#define ST_ACCEL_3_IHL_IRQ_ADDR 0x23
-#define ST_ACCEL_3_IHL_IRQ_MASK 0x40
-#define ST_ACCEL_3_IG1_EN_ADDR 0x23
-#define ST_ACCEL_3_IG1_EN_MASK 0x08
-#define ST_ACCEL_3_MULTIREAD_BIT false
-
-/* CUSTOM VALUES FOR SENSOR 4 */
-#define ST_ACCEL_4_WAI_EXP 0x3a
-#define ST_ACCEL_4_ODR_ADDR 0x20
-#define ST_ACCEL_4_ODR_MASK 0x30 /* DF1 and DF0 */
-#define ST_ACCEL_4_ODR_AVL_40HZ_VAL 0x00
-#define ST_ACCEL_4_ODR_AVL_160HZ_VAL 0x01
-#define ST_ACCEL_4_ODR_AVL_640HZ_VAL 0x02
-#define ST_ACCEL_4_ODR_AVL_2560HZ_VAL 0x03
-#define ST_ACCEL_4_PW_ADDR 0x20
-#define ST_ACCEL_4_PW_MASK 0xc0
-#define ST_ACCEL_4_FS_ADDR 0x21
-#define ST_ACCEL_4_FS_MASK 0x80
-#define ST_ACCEL_4_FS_AVL_2_VAL 0X00
-#define ST_ACCEL_4_FS_AVL_6_VAL 0X01
-#define ST_ACCEL_4_FS_AVL_2_GAIN IIO_G_TO_M_S_2(1024)
-#define ST_ACCEL_4_FS_AVL_6_GAIN IIO_G_TO_M_S_2(340)
-#define ST_ACCEL_4_BDU_ADDR 0x21
-#define ST_ACCEL_4_BDU_MASK 0x40
-#define ST_ACCEL_4_DRDY_IRQ_ADDR 0x21
-#define ST_ACCEL_4_DRDY_IRQ_INT1_MASK 0x04
-#define ST_ACCEL_4_MULTIREAD_BIT true
-
-/* CUSTOM VALUES FOR SENSOR 5 */
-#define ST_ACCEL_5_WAI_EXP 0x3b
-#define ST_ACCEL_5_ODR_ADDR 0x20
-#define ST_ACCEL_5_ODR_MASK 0x80
-#define ST_ACCEL_5_ODR_AVL_100HZ_VAL 0x00
-#define ST_ACCEL_5_ODR_AVL_400HZ_VAL 0x01
-#define ST_ACCEL_5_PW_ADDR 0x20
-#define ST_ACCEL_5_PW_MASK 0x40
-#define ST_ACCEL_5_FS_ADDR 0x20
-#define ST_ACCEL_5_FS_MASK 0x20
-#define ST_ACCEL_5_FS_AVL_2_VAL 0X00
-#define ST_ACCEL_5_FS_AVL_8_VAL 0X01
-/* TODO: check these resulting gain settings, these are not in the datsheet */
-#define ST_ACCEL_5_FS_AVL_2_GAIN IIO_G_TO_M_S_2(18000)
-#define ST_ACCEL_5_FS_AVL_8_GAIN IIO_G_TO_M_S_2(72000)
-#define ST_ACCEL_5_DRDY_IRQ_ADDR 0x22
-#define ST_ACCEL_5_DRDY_IRQ_INT1_MASK 0x04
-#define ST_ACCEL_5_DRDY_IRQ_INT2_MASK 0x20
-#define ST_ACCEL_5_IHL_IRQ_ADDR 0x22
-#define ST_ACCEL_5_IHL_IRQ_MASK 0x80
-#define ST_ACCEL_5_OD_IRQ_ADDR 0x22
-#define ST_ACCEL_5_OD_IRQ_MASK 0x40
-#define ST_ACCEL_5_IG1_EN_ADDR 0x21
-#define ST_ACCEL_5_IG1_EN_MASK 0x08
-#define ST_ACCEL_5_MULTIREAD_BIT false
-
-/* CUSTOM VALUES FOR SENSOR 6 */
-#define ST_ACCEL_6_WAI_EXP 0x32
-#define ST_ACCEL_6_ODR_ADDR 0x20
-#define ST_ACCEL_6_ODR_MASK 0x18
-#define ST_ACCEL_6_ODR_AVL_50HZ_VAL 0x00
-#define ST_ACCEL_6_ODR_AVL_100HZ_VAL 0x01
-#define ST_ACCEL_6_ODR_AVL_400HZ_VAL 0x02
-#define ST_ACCEL_6_ODR_AVL_1000HZ_VAL 0x03
-#define ST_ACCEL_6_PW_ADDR 0x20
-#define ST_ACCEL_6_PW_MASK 0x20
-#define ST_ACCEL_6_FS_ADDR 0x23
-#define ST_ACCEL_6_FS_MASK 0x30
-#define ST_ACCEL_6_FS_AVL_100_VAL 0x00
-#define ST_ACCEL_6_FS_AVL_200_VAL 0x01
-#define ST_ACCEL_6_FS_AVL_400_VAL 0x03
-#define ST_ACCEL_6_FS_AVL_100_GAIN IIO_G_TO_M_S_2(49000)
-#define ST_ACCEL_6_FS_AVL_200_GAIN IIO_G_TO_M_S_2(98000)
-#define ST_ACCEL_6_FS_AVL_400_GAIN IIO_G_TO_M_S_2(195000)
-#define ST_ACCEL_6_BDU_ADDR 0x23
-#define ST_ACCEL_6_BDU_MASK 0x80
-#define ST_ACCEL_6_DRDY_IRQ_ADDR 0x22
-#define ST_ACCEL_6_DRDY_IRQ_INT1_MASK 0x02
-#define ST_ACCEL_6_DRDY_IRQ_INT2_MASK 0x10
-#define ST_ACCEL_6_IHL_IRQ_ADDR 0x22
-#define ST_ACCEL_6_IHL_IRQ_MASK 0x80
-#define ST_ACCEL_6_MULTIREAD_BIT true
-
-/* CUSTOM VALUES FOR SENSOR 7 */
-#define ST_ACCEL_7_ODR_ADDR 0x20
-#define ST_ACCEL_7_ODR_MASK 0x30
-#define ST_ACCEL_7_ODR_AVL_280HZ_VAL 0x00
-#define ST_ACCEL_7_ODR_AVL_560HZ_VAL 0x01
-#define ST_ACCEL_7_ODR_AVL_1120HZ_VAL 0x02
-#define ST_ACCEL_7_ODR_AVL_4480HZ_VAL 0x03
-#define ST_ACCEL_7_PW_ADDR 0x20
-#define ST_ACCEL_7_PW_MASK 0xc0
-#define ST_ACCEL_7_FS_AVL_2_GAIN IIO_G_TO_M_S_2(488)
-#define ST_ACCEL_7_BDU_ADDR 0x21
-#define ST_ACCEL_7_BDU_MASK 0x40
-#define ST_ACCEL_7_DRDY_IRQ_ADDR 0x21
-#define ST_ACCEL_7_DRDY_IRQ_INT1_MASK 0x04
-#define ST_ACCEL_7_MULTIREAD_BIT false
-
-/* CUSTOM VALUES FOR SENSOR 8 */
-#define ST_ACCEL_8_FS_AVL_2_GAIN IIO_G_TO_M_S_2(15600)
-#define ST_ACCEL_8_FS_AVL_4_GAIN IIO_G_TO_M_S_2(31200)
-#define ST_ACCEL_8_FS_AVL_8_GAIN IIO_G_TO_M_S_2(62500)
-#define ST_ACCEL_8_FS_AVL_16_GAIN IIO_G_TO_M_S_2(187500)
-
static const struct iio_chan_spec st_accel_8bit_channels[] = {
ST_SENSORS_LSM_CHANNELS(IIO_ACCEL,
BIT(IIO_CHAN_INFO_RAW) | BIT(IIO_CHAN_INFO_SCALE),
@@ -287,7 +93,7 @@ static const struct iio_chan_spec st_accel_16bit_channels[] = {
static const struct st_sensor_settings st_accel_sensors_settings[] = {
{
- .wai = ST_ACCEL_1_WAI_EXP,
+ .wai = 0x33,
.wai_addr = ST_SENSORS_DEFAULT_WAI_ADDRESS,
.sensors_supported = {
[0] = LIS3DH_ACCEL_DEV_NAME,
@@ -300,22 +106,22 @@ static const struct st_sensor_settings st_accel_sensors_settings[] = {
},
.ch = (struct iio_chan_spec *)st_accel_12bit_channels,
.odr = {
- .addr = ST_ACCEL_1_ODR_ADDR,
- .mask = ST_ACCEL_1_ODR_MASK,
+ .addr = 0x20,
+ .mask = 0xf0,
.odr_avl = {
- { 1, ST_ACCEL_1_ODR_AVL_1HZ_VAL, },
- { 10, ST_ACCEL_1_ODR_AVL_10HZ_VAL, },
- { 25, ST_ACCEL_1_ODR_AVL_25HZ_VAL, },
- { 50, ST_ACCEL_1_ODR_AVL_50HZ_VAL, },
- { 100, ST_ACCEL_1_ODR_AVL_100HZ_VAL, },
- { 200, ST_ACCEL_1_ODR_AVL_200HZ_VAL, },
- { 400, ST_ACCEL_1_ODR_AVL_400HZ_VAL, },
- { 1600, ST_ACCEL_1_ODR_AVL_1600HZ_VAL, },
+ { .hz = 1, .value = 0x01, },
+ { .hz = 10, .value = 0x02, },
+ { .hz = 25, .value = 0x03, },
+ { .hz = 50, .value = 0x04, },
+ { .hz = 100, .value = 0x05, },
+ { .hz = 200, .value = 0x06, },
+ { .hz = 400, .value = 0x07, },
+ { .hz = 1600, .value = 0x08, },
},
},
.pw = {
- .addr = ST_ACCEL_1_ODR_ADDR,
- .mask = ST_ACCEL_1_ODR_MASK,
+ .addr = 0x20,
+ .mask = 0xf0,
.value_off = ST_SENSORS_DEFAULT_POWER_OFF_VALUE,
},
.enable_axis = {
@@ -323,48 +129,48 @@ static const struct st_sensor_settings st_accel_sensors_settings[] = {
.mask = ST_SENSORS_DEFAULT_AXIS_MASK,
},
.fs = {
- .addr = ST_ACCEL_1_FS_ADDR,
- .mask = ST_ACCEL_1_FS_MASK,
+ .addr = 0x23,
+ .mask = 0x30,
.fs_avl = {
[0] = {
.num = ST_ACCEL_FS_AVL_2G,
- .value = ST_ACCEL_1_FS_AVL_2_VAL,
- .gain = ST_ACCEL_1_FS_AVL_2_GAIN,
+ .value = 0x00,
+ .gain = IIO_G_TO_M_S_2(1000),
},
[1] = {
.num = ST_ACCEL_FS_AVL_4G,
- .value = ST_ACCEL_1_FS_AVL_4_VAL,
- .gain = ST_ACCEL_1_FS_AVL_4_GAIN,
+ .value = 0x01,
+ .gain = IIO_G_TO_M_S_2(2000),
},
[2] = {
.num = ST_ACCEL_FS_AVL_8G,
- .value = ST_ACCEL_1_FS_AVL_8_VAL,
- .gain = ST_ACCEL_1_FS_AVL_8_GAIN,
+ .value = 0x02,
+ .gain = IIO_G_TO_M_S_2(4000),
},
[3] = {
.num = ST_ACCEL_FS_AVL_16G,
- .value = ST_ACCEL_1_FS_AVL_16_VAL,
- .gain = ST_ACCEL_1_FS_AVL_16_GAIN,
+ .value = 0x03,
+ .gain = IIO_G_TO_M_S_2(12000),
},
},
},
.bdu = {
- .addr = ST_ACCEL_1_BDU_ADDR,
- .mask = ST_ACCEL_1_BDU_MASK,
+ .addr = 0x23,
+ .mask = 0x80,
},
.drdy_irq = {
- .addr = ST_ACCEL_1_DRDY_IRQ_ADDR,
- .mask_int1 = ST_ACCEL_1_DRDY_IRQ_INT1_MASK,
- .mask_int2 = ST_ACCEL_1_DRDY_IRQ_INT2_MASK,
- .addr_ihl = ST_ACCEL_1_IHL_IRQ_ADDR,
- .mask_ihl = ST_ACCEL_1_IHL_IRQ_MASK,
+ .addr = 0x22,
+ .mask_int1 = 0x10,
+ .mask_int2 = 0x08,
+ .addr_ihl = 0x25,
+ .mask_ihl = 0x02,
.addr_stat_drdy = ST_SENSORS_DEFAULT_STAT_ADDR,
},
- .multi_read_bit = ST_ACCEL_1_MULTIREAD_BIT,
+ .multi_read_bit = true,
.bootime = 2,
},
{
- .wai = ST_ACCEL_2_WAI_EXP,
+ .wai = 0x32,
.wai_addr = ST_SENSORS_DEFAULT_WAI_ADDRESS,
.sensors_supported = {
[0] = LIS331DLH_ACCEL_DEV_NAME,
@@ -374,18 +180,18 @@ static const struct st_sensor_settings st_accel_sensors_settings[] = {
},
.ch = (struct iio_chan_spec *)st_accel_12bit_channels,
.odr = {
- .addr = ST_ACCEL_2_ODR_ADDR,
- .mask = ST_ACCEL_2_ODR_MASK,
+ .addr = 0x20,
+ .mask = 0x18,
.odr_avl = {
- { 50, ST_ACCEL_2_ODR_AVL_50HZ_VAL, },
- { 100, ST_ACCEL_2_ODR_AVL_100HZ_VAL, },
- { 400, ST_ACCEL_2_ODR_AVL_400HZ_VAL, },
- { 1000, ST_ACCEL_2_ODR_AVL_1000HZ_VAL, },
+ { .hz = 50, .value = 0x00, },
+ { .hz = 100, .value = 0x01, },
+ { .hz = 400, .value = 0x02, },
+ { .hz = 1000, .value = 0x03, },
},
},
.pw = {
- .addr = ST_ACCEL_2_PW_ADDR,
- .mask = ST_ACCEL_2_PW_MASK,
+ .addr = 0x20,
+ .mask = 0xe0,
.value_on = ST_SENSORS_DEFAULT_POWER_ON_VALUE,
.value_off = ST_SENSORS_DEFAULT_POWER_OFF_VALUE,
},
@@ -394,69 +200,69 @@ static const struct st_sensor_settings st_accel_sensors_settings[] = {
.mask = ST_SENSORS_DEFAULT_AXIS_MASK,
},
.fs = {
- .addr = ST_ACCEL_2_FS_ADDR,
- .mask = ST_ACCEL_2_FS_MASK,
+ .addr = 0x23,
+ .mask = 0x30,
.fs_avl = {
[0] = {
.num = ST_ACCEL_FS_AVL_2G,
- .value = ST_ACCEL_2_FS_AVL_2_VAL,
- .gain = ST_ACCEL_2_FS_AVL_2_GAIN,
+ .value = 0x00,
+ .gain = IIO_G_TO_M_S_2(1000),
},
[1] = {
.num = ST_ACCEL_FS_AVL_4G,
- .value = ST_ACCEL_2_FS_AVL_4_VAL,
- .gain = ST_ACCEL_2_FS_AVL_4_GAIN,
+ .value = 0x01,
+ .gain = IIO_G_TO_M_S_2(2000),
},
[2] = {
.num = ST_ACCEL_FS_AVL_8G,
- .value = ST_ACCEL_2_FS_AVL_8_VAL,
- .gain = ST_ACCEL_2_FS_AVL_8_GAIN,
+ .value = 0x03,
+ .gain = IIO_G_TO_M_S_2(3900),
},
},
},
.bdu = {
- .addr = ST_ACCEL_2_BDU_ADDR,
- .mask = ST_ACCEL_2_BDU_MASK,
+ .addr = 0x23,
+ .mask = 0x80,
},
.drdy_irq = {
- .addr = ST_ACCEL_2_DRDY_IRQ_ADDR,
- .mask_int1 = ST_ACCEL_2_DRDY_IRQ_INT1_MASK,
- .mask_int2 = ST_ACCEL_2_DRDY_IRQ_INT2_MASK,
- .addr_ihl = ST_ACCEL_2_IHL_IRQ_ADDR,
- .mask_ihl = ST_ACCEL_2_IHL_IRQ_MASK,
- .addr_od = ST_ACCEL_2_OD_IRQ_ADDR,
- .mask_od = ST_ACCEL_2_OD_IRQ_MASK,
+ .addr = 0x22,
+ .mask_int1 = 0x02,
+ .mask_int2 = 0x10,
+ .addr_ihl = 0x22,
+ .mask_ihl = 0x80,
+ .addr_od = 0x22,
+ .mask_od = 0x40,
.addr_stat_drdy = ST_SENSORS_DEFAULT_STAT_ADDR,
},
- .multi_read_bit = ST_ACCEL_2_MULTIREAD_BIT,
+ .multi_read_bit = true,
.bootime = 2,
},
{
- .wai = ST_ACCEL_3_WAI_EXP,
+ .wai = 0x40,
.wai_addr = ST_SENSORS_DEFAULT_WAI_ADDRESS,
.sensors_supported = {
[0] = LSM330_ACCEL_DEV_NAME,
},
.ch = (struct iio_chan_spec *)st_accel_16bit_channels,
.odr = {
- .addr = ST_ACCEL_3_ODR_ADDR,
- .mask = ST_ACCEL_3_ODR_MASK,
+ .addr = 0x20,
+ .mask = 0xf0,
.odr_avl = {
- { 3, ST_ACCEL_3_ODR_AVL_3HZ_VAL },
- { 6, ST_ACCEL_3_ODR_AVL_6HZ_VAL, },
- { 12, ST_ACCEL_3_ODR_AVL_12HZ_VAL, },
- { 25, ST_ACCEL_3_ODR_AVL_25HZ_VAL, },
- { 50, ST_ACCEL_3_ODR_AVL_50HZ_VAL, },
- { 100, ST_ACCEL_3_ODR_AVL_100HZ_VAL, },
- { 200, ST_ACCEL_3_ODR_AVL_200HZ_VAL, },
- { 400, ST_ACCEL_3_ODR_AVL_400HZ_VAL, },
- { 800, ST_ACCEL_3_ODR_AVL_800HZ_VAL, },
- { 1600, ST_ACCEL_3_ODR_AVL_1600HZ_VAL, },
+ { .hz = 3, .value = 0x01, },
+ { .hz = 6, .value = 0x02, },
+ { .hz = 12, .value = 0x03, },
+ { .hz = 25, .value = 0x04, },
+ { .hz = 50, .value = 0x05, },
+ { .hz = 100, .value = 0x06, },
+ { .hz = 200, .value = 0x07, },
+ { .hz = 400, .value = 0x08, },
+ { .hz = 800, .value = 0x09, },
+ { .hz = 1600, .value = 0x0a, },
},
},
.pw = {
- .addr = ST_ACCEL_3_ODR_ADDR,
- .mask = ST_ACCEL_3_ODR_MASK,
+ .addr = 0x20,
+ .mask = 0xf0,
.value_off = ST_SENSORS_DEFAULT_POWER_OFF_VALUE,
},
.enable_axis = {
@@ -464,75 +270,75 @@ static const struct st_sensor_settings st_accel_sensors_settings[] = {
.mask = ST_SENSORS_DEFAULT_AXIS_MASK,
},
.fs = {
- .addr = ST_ACCEL_3_FS_ADDR,
- .mask = ST_ACCEL_3_FS_MASK,
+ .addr = 0x24,
+ .mask = 0x38,
.fs_avl = {
[0] = {
.num = ST_ACCEL_FS_AVL_2G,
- .value = ST_ACCEL_3_FS_AVL_2_VAL,
- .gain = ST_ACCEL_3_FS_AVL_2_GAIN,
+ .value = 0x00,
+ .gain = IIO_G_TO_M_S_2(61),
},
[1] = {
.num = ST_ACCEL_FS_AVL_4G,
- .value = ST_ACCEL_3_FS_AVL_4_VAL,
- .gain = ST_ACCEL_3_FS_AVL_4_GAIN,
+ .value = 0x01,
+ .gain = IIO_G_TO_M_S_2(122),
},
[2] = {
.num = ST_ACCEL_FS_AVL_6G,
- .value = ST_ACCEL_3_FS_AVL_6_VAL,
- .gain = ST_ACCEL_3_FS_AVL_6_GAIN,
+ .value = 0x02,
+ .gain = IIO_G_TO_M_S_2(183),
},
[3] = {
.num = ST_ACCEL_FS_AVL_8G,
- .value = ST_ACCEL_3_FS_AVL_8_VAL,
- .gain = ST_ACCEL_3_FS_AVL_8_GAIN,
+ .value = 0x03,
+ .gain = IIO_G_TO_M_S_2(244),
},
[4] = {
.num = ST_ACCEL_FS_AVL_16G,
- .value = ST_ACCEL_3_FS_AVL_16_VAL,
- .gain = ST_ACCEL_3_FS_AVL_16_GAIN,
+ .value = 0x04,
+ .gain = IIO_G_TO_M_S_2(732),
},
},
},
.bdu = {
- .addr = ST_ACCEL_3_BDU_ADDR,
- .mask = ST_ACCEL_3_BDU_MASK,
+ .addr = 0x20,
+ .mask = 0x08,
},
.drdy_irq = {
- .addr = ST_ACCEL_3_DRDY_IRQ_ADDR,
- .mask_int1 = ST_ACCEL_3_DRDY_IRQ_INT1_MASK,
- .mask_int2 = ST_ACCEL_3_DRDY_IRQ_INT2_MASK,
- .addr_ihl = ST_ACCEL_3_IHL_IRQ_ADDR,
- .mask_ihl = ST_ACCEL_3_IHL_IRQ_MASK,
+ .addr = 0x23,
+ .mask_int1 = 0x80,
+ .mask_int2 = 0x00,
+ .addr_ihl = 0x23,
+ .mask_ihl = 0x40,
.addr_stat_drdy = ST_SENSORS_DEFAULT_STAT_ADDR,
.ig1 = {
- .en_addr = ST_ACCEL_3_IG1_EN_ADDR,
- .en_mask = ST_ACCEL_3_IG1_EN_MASK,
+ .en_addr = 0x23,
+ .en_mask = 0x08,
},
},
- .multi_read_bit = ST_ACCEL_3_MULTIREAD_BIT,
+ .multi_read_bit = false,
.bootime = 2,
},
{
- .wai = ST_ACCEL_4_WAI_EXP,
+ .wai = 0x3a,
.wai_addr = ST_SENSORS_DEFAULT_WAI_ADDRESS,
.sensors_supported = {
[0] = LIS3LV02DL_ACCEL_DEV_NAME,
},
.ch = (struct iio_chan_spec *)st_accel_12bit_channels,
.odr = {
- .addr = ST_ACCEL_4_ODR_ADDR,
- .mask = ST_ACCEL_4_ODR_MASK,
+ .addr = 0x20,
+ .mask = 0x30, /* DF1 and DF0 */
.odr_avl = {
- { 40, ST_ACCEL_4_ODR_AVL_40HZ_VAL },
- { 160, ST_ACCEL_4_ODR_AVL_160HZ_VAL, },
- { 640, ST_ACCEL_4_ODR_AVL_640HZ_VAL, },
- { 2560, ST_ACCEL_4_ODR_AVL_2560HZ_VAL, },
+ { .hz = 40, .value = 0x00, },
+ { .hz = 160, .value = 0x01, },
+ { .hz = 640, .value = 0x02, },
+ { .hz = 2560, .value = 0x03, },
},
},
.pw = {
- .addr = ST_ACCEL_4_PW_ADDR,
- .mask = ST_ACCEL_4_PW_MASK,
+ .addr = 0x20,
+ .mask = 0xc0,
.value_on = ST_SENSORS_DEFAULT_POWER_ON_VALUE,
.value_off = ST_SENSORS_DEFAULT_POWER_OFF_VALUE,
},
@@ -541,51 +347,51 @@ static const struct st_sensor_settings st_accel_sensors_settings[] = {
.mask = ST_SENSORS_DEFAULT_AXIS_MASK,
},
.fs = {
- .addr = ST_ACCEL_4_FS_ADDR,
- .mask = ST_ACCEL_4_FS_MASK,
+ .addr = 0x21,
+ .mask = 0x80,
.fs_avl = {
[0] = {
.num = ST_ACCEL_FS_AVL_2G,
- .value = ST_ACCEL_4_FS_AVL_2_VAL,
- .gain = ST_ACCEL_4_FS_AVL_2_GAIN,
+ .value = 0x00,
+ .gain = IIO_G_TO_M_S_2(1024),
},
[1] = {
.num = ST_ACCEL_FS_AVL_6G,
- .value = ST_ACCEL_4_FS_AVL_6_VAL,
- .gain = ST_ACCEL_4_FS_AVL_6_GAIN,
+ .value = 0x01,
+ .gain = IIO_G_TO_M_S_2(340),
},
},
},
.bdu = {
- .addr = ST_ACCEL_4_BDU_ADDR,
- .mask = ST_ACCEL_4_BDU_MASK,
+ .addr = 0x21,
+ .mask = 0x40,
},
.drdy_irq = {
- .addr = ST_ACCEL_4_DRDY_IRQ_ADDR,
- .mask_int1 = ST_ACCEL_4_DRDY_IRQ_INT1_MASK,
+ .addr = 0x21,
+ .mask_int1 = 0x04,
.addr_stat_drdy = ST_SENSORS_DEFAULT_STAT_ADDR,
},
- .multi_read_bit = ST_ACCEL_4_MULTIREAD_BIT,
+ .multi_read_bit = true,
.bootime = 2, /* guess */
},
{
- .wai = ST_ACCEL_5_WAI_EXP,
+ .wai = 0x3b,
.wai_addr = ST_SENSORS_DEFAULT_WAI_ADDRESS,
.sensors_supported = {
[0] = LIS331DL_ACCEL_DEV_NAME,
},
.ch = (struct iio_chan_spec *)st_accel_8bit_channels,
.odr = {
- .addr = ST_ACCEL_5_ODR_ADDR,
- .mask = ST_ACCEL_5_ODR_MASK,
+ .addr = 0x20,
+ .mask = 0x80,
.odr_avl = {
- { 100, ST_ACCEL_5_ODR_AVL_100HZ_VAL },
- { 400, ST_ACCEL_5_ODR_AVL_400HZ_VAL, },
+ { .hz = 100, .value = 0x00, },
+ { .hz = 400, .value = 0x01, },
},
},
.pw = {
- .addr = ST_ACCEL_5_PW_ADDR,
- .mask = ST_ACCEL_5_PW_MASK,
+ .addr = 0x20,
+ .mask = 0x40,
.value_on = ST_SENSORS_DEFAULT_POWER_ON_VALUE,
.value_off = ST_SENSORS_DEFAULT_POWER_OFF_VALUE,
},
@@ -594,54 +400,58 @@ static const struct st_sensor_settings st_accel_sensors_settings[] = {
.mask = ST_SENSORS_DEFAULT_AXIS_MASK,
},
.fs = {
- .addr = ST_ACCEL_5_FS_ADDR,
- .mask = ST_ACCEL_5_FS_MASK,
+ .addr = 0x20,
+ .mask = 0x20,
+ /*
+ * TODO: check these resulting gain settings, these are
+ * not in the datsheet
+ */
.fs_avl = {
[0] = {
.num = ST_ACCEL_FS_AVL_2G,
- .value = ST_ACCEL_5_FS_AVL_2_VAL,
- .gain = ST_ACCEL_5_FS_AVL_2_GAIN,
+ .value = 0x00,
+ .gain = IIO_G_TO_M_S_2(18000),
},
[1] = {
.num = ST_ACCEL_FS_AVL_8G,
- .value = ST_ACCEL_5_FS_AVL_8_VAL,
- .gain = ST_ACCEL_5_FS_AVL_8_GAIN,
+ .value = 0x01,
+ .gain = IIO_G_TO_M_S_2(72000),
},
},
},
.drdy_irq = {
- .addr = ST_ACCEL_5_DRDY_IRQ_ADDR,
- .mask_int1 = ST_ACCEL_5_DRDY_IRQ_INT1_MASK,
- .mask_int2 = ST_ACCEL_5_DRDY_IRQ_INT2_MASK,
- .addr_ihl = ST_ACCEL_5_IHL_IRQ_ADDR,
- .mask_ihl = ST_ACCEL_5_IHL_IRQ_MASK,
- .addr_od = ST_ACCEL_5_OD_IRQ_ADDR,
- .mask_od = ST_ACCEL_5_OD_IRQ_MASK,
+ .addr = 0x22,
+ .mask_int1 = 0x04,
+ .mask_int2 = 0x20,
+ .addr_ihl = 0x22,
+ .mask_ihl = 0x80,
+ .addr_od = 0x22,
+ .mask_od = 0x40,
.addr_stat_drdy = ST_SENSORS_DEFAULT_STAT_ADDR,
},
- .multi_read_bit = ST_ACCEL_5_MULTIREAD_BIT,
+ .multi_read_bit = false,
.bootime = 2, /* guess */
},
{
- .wai = ST_ACCEL_6_WAI_EXP,
+ .wai = 0x32,
.wai_addr = ST_SENSORS_DEFAULT_WAI_ADDRESS,
.sensors_supported = {
[0] = H3LIS331DL_DRIVER_NAME,
},
.ch = (struct iio_chan_spec *)st_accel_12bit_channels,
.odr = {
- .addr = ST_ACCEL_6_ODR_ADDR,
- .mask = ST_ACCEL_6_ODR_MASK,
+ .addr = 0x20,
+ .mask = 0x18,
.odr_avl = {
- { 50, ST_ACCEL_6_ODR_AVL_50HZ_VAL },
- { 100, ST_ACCEL_6_ODR_AVL_100HZ_VAL, },
- { 400, ST_ACCEL_6_ODR_AVL_400HZ_VAL, },
- { 1000, ST_ACCEL_6_ODR_AVL_1000HZ_VAL, },
+ { .hz = 50, .value = 0x00, },
+ { .hz = 100, .value = 0x01, },
+ { .hz = 400, .value = 0x02, },
+ { .hz = 1000, .value = 0x03, },
},
},
.pw = {
- .addr = ST_ACCEL_6_PW_ADDR,
- .mask = ST_ACCEL_6_PW_MASK,
+ .addr = 0x20,
+ .mask = 0x20,
.value_on = ST_SENSORS_DEFAULT_POWER_ON_VALUE,
.value_off = ST_SENSORS_DEFAULT_POWER_OFF_VALUE,
},
@@ -650,38 +460,38 @@ static const struct st_sensor_settings st_accel_sensors_settings[] = {
.mask = ST_SENSORS_DEFAULT_AXIS_MASK,
},
.fs = {
- .addr = ST_ACCEL_6_FS_ADDR,
- .mask = ST_ACCEL_6_FS_MASK,
+ .addr = 0x23,
+ .mask = 0x30,
.fs_avl = {
[0] = {
.num = ST_ACCEL_FS_AVL_100G,
- .value = ST_ACCEL_6_FS_AVL_100_VAL,
- .gain = ST_ACCEL_6_FS_AVL_100_GAIN,
+ .value = 0x00,
+ .gain = IIO_G_TO_M_S_2(49000),
},
[1] = {
.num = ST_ACCEL_FS_AVL_200G,
- .value = ST_ACCEL_6_FS_AVL_200_VAL,
- .gain = ST_ACCEL_6_FS_AVL_200_GAIN,
+ .value = 0x01,
+ .gain = IIO_G_TO_M_S_2(98000),
},
[2] = {
.num = ST_ACCEL_FS_AVL_400G,
- .value = ST_ACCEL_6_FS_AVL_400_VAL,
- .gain = ST_ACCEL_6_FS_AVL_400_GAIN,
+ .value = 0x03,
+ .gain = IIO_G_TO_M_S_2(195000),
},
},
},
.bdu = {
- .addr = ST_ACCEL_6_BDU_ADDR,
- .mask = ST_ACCEL_6_BDU_MASK,
+ .addr = 0x23,
+ .mask = 0x80,
},
.drdy_irq = {
- .addr = ST_ACCEL_6_DRDY_IRQ_ADDR,
- .mask_int1 = ST_ACCEL_6_DRDY_IRQ_INT1_MASK,
- .mask_int2 = ST_ACCEL_6_DRDY_IRQ_INT2_MASK,
- .addr_ihl = ST_ACCEL_6_IHL_IRQ_ADDR,
- .mask_ihl = ST_ACCEL_6_IHL_IRQ_MASK,
+ .addr = 0x22,
+ .mask_int1 = 0x02,
+ .mask_int2 = 0x10,
+ .addr_ihl = 0x22,
+ .mask_ihl = 0x80,
},
- .multi_read_bit = ST_ACCEL_6_MULTIREAD_BIT,
+ .multi_read_bit = true,
.bootime = 2,
},
{
@@ -691,18 +501,18 @@ static const struct st_sensor_settings st_accel_sensors_settings[] = {
},
.ch = (struct iio_chan_spec *)st_accel_12bit_channels,
.odr = {
- .addr = ST_ACCEL_7_ODR_ADDR,
- .mask = ST_ACCEL_7_ODR_MASK,
+ .addr = 0x20,
+ .mask = 0x30,
.odr_avl = {
- { 280, ST_ACCEL_7_ODR_AVL_280HZ_VAL, },
- { 560, ST_ACCEL_7_ODR_AVL_560HZ_VAL, },
- { 1120, ST_ACCEL_7_ODR_AVL_1120HZ_VAL, },
- { 4480, ST_ACCEL_7_ODR_AVL_4480HZ_VAL, },
+ { .hz = 280, .value = 0x00, },
+ { .hz = 560, .value = 0x01, },
+ { .hz = 1120, .value = 0x02, },
+ { .hz = 4480, .value = 0x03, },
},
},
.pw = {
- .addr = ST_ACCEL_7_PW_ADDR,
- .mask = ST_ACCEL_7_PW_MASK,
+ .addr = 0x20,
+ .mask = 0xc0,
.value_on = ST_SENSORS_DEFAULT_POWER_ON_VALUE,
.value_off = ST_SENSORS_DEFAULT_POWER_OFF_VALUE,
},
@@ -714,7 +524,7 @@ static const struct st_sensor_settings st_accel_sensors_settings[] = {
.fs_avl = {
[0] = {
.num = ST_ACCEL_FS_AVL_2G,
- .gain = ST_ACCEL_7_FS_AVL_2_GAIN,
+ .gain = IIO_G_TO_M_S_2(488),
},
},
},
@@ -725,37 +535,37 @@ static const struct st_sensor_settings st_accel_sensors_settings[] = {
.bdu = {
},
.drdy_irq = {
- .addr = ST_ACCEL_7_DRDY_IRQ_ADDR,
- .mask_int1 = ST_ACCEL_7_DRDY_IRQ_INT1_MASK,
+ .addr = 0x21,
+ .mask_int1 = 0x04,
.addr_stat_drdy = ST_SENSORS_DEFAULT_STAT_ADDR,
},
- .multi_read_bit = ST_ACCEL_7_MULTIREAD_BIT,
+ .multi_read_bit = false,
.bootime = 2,
},
{
- .wai = ST_ACCEL_1_WAI_EXP,
+ .wai = 0x33,
.wai_addr = ST_SENSORS_DEFAULT_WAI_ADDRESS,
.sensors_supported = {
[0] = LNG2DM_ACCEL_DEV_NAME,
},
.ch = (struct iio_chan_spec *)st_accel_8bit_channels,
.odr = {
- .addr = ST_ACCEL_1_ODR_ADDR,
- .mask = ST_ACCEL_1_ODR_MASK,
+ .addr = 0x20,
+ .mask = 0xf0,
.odr_avl = {
- { 1, ST_ACCEL_1_ODR_AVL_1HZ_VAL, },
- { 10, ST_ACCEL_1_ODR_AVL_10HZ_VAL, },
- { 25, ST_ACCEL_1_ODR_AVL_25HZ_VAL, },
- { 50, ST_ACCEL_1_ODR_AVL_50HZ_VAL, },
- { 100, ST_ACCEL_1_ODR_AVL_100HZ_VAL, },
- { 200, ST_ACCEL_1_ODR_AVL_200HZ_VAL, },
- { 400, ST_ACCEL_1_ODR_AVL_400HZ_VAL, },
- { 1600, ST_ACCEL_1_ODR_AVL_1600HZ_VAL, },
+ { .hz = 1, .value = 0x01, },
+ { .hz = 10, .value = 0x02, },
+ { .hz = 25, .value = 0x03, },
+ { .hz = 50, .value = 0x04, },
+ { .hz = 100, .value = 0x05, },
+ { .hz = 200, .value = 0x06, },
+ { .hz = 400, .value = 0x07, },
+ { .hz = 1600, .value = 0x08, },
},
},
.pw = {
- .addr = ST_ACCEL_1_ODR_ADDR,
- .mask = ST_ACCEL_1_ODR_MASK,
+ .addr = 0x20,
+ .mask = 0xf0,
.value_off = ST_SENSORS_DEFAULT_POWER_OFF_VALUE,
},
.enable_axis = {
@@ -763,40 +573,40 @@ static const struct st_sensor_settings st_accel_sensors_settings[] = {
.mask = ST_SENSORS_DEFAULT_AXIS_MASK,
},
.fs = {
- .addr = ST_ACCEL_1_FS_ADDR,
- .mask = ST_ACCEL_1_FS_MASK,
+ .addr = 0x23,
+ .mask = 0x30,
.fs_avl = {
[0] = {
.num = ST_ACCEL_FS_AVL_2G,
- .value = ST_ACCEL_1_FS_AVL_2_VAL,
- .gain = ST_ACCEL_8_FS_AVL_2_GAIN,
+ .value = 0x00,
+ .gain = IIO_G_TO_M_S_2(15600),
},
[1] = {
.num = ST_ACCEL_FS_AVL_4G,
- .value = ST_ACCEL_1_FS_AVL_4_VAL,
- .gain = ST_ACCEL_8_FS_AVL_4_GAIN,
+ .value = 0x01,
+ .gain = IIO_G_TO_M_S_2(31200),
},
[2] = {
.num = ST_ACCEL_FS_AVL_8G,
- .value = ST_ACCEL_1_FS_AVL_8_VAL,
- .gain = ST_ACCEL_8_FS_AVL_8_GAIN,
+ .value = 0x02,
+ .gain = IIO_G_TO_M_S_2(62500),
},
[3] = {
.num = ST_ACCEL_FS_AVL_16G,
- .value = ST_ACCEL_1_FS_AVL_16_VAL,
- .gain = ST_ACCEL_8_FS_AVL_16_GAIN,
+ .value = 0x03,
+ .gain = IIO_G_TO_M_S_2(187500),
},
},
},
.drdy_irq = {
- .addr = ST_ACCEL_1_DRDY_IRQ_ADDR,
- .mask_int1 = ST_ACCEL_1_DRDY_IRQ_INT1_MASK,
- .mask_int2 = ST_ACCEL_1_DRDY_IRQ_INT2_MASK,
- .addr_ihl = ST_ACCEL_1_IHL_IRQ_ADDR,
- .mask_ihl = ST_ACCEL_1_IHL_IRQ_MASK,
+ .addr = 0x22,
+ .mask_int1 = 0x10,
+ .mask_int2 = 0x08,
+ .addr_ihl = 0x25,
+ .mask_ihl = 0x02,
.addr_stat_drdy = ST_SENSORS_DEFAULT_STAT_ADDR,
},
- .multi_read_bit = ST_ACCEL_1_MULTIREAD_BIT,
+ .multi_read_bit = true,
.bootime = 2,
},
};
diff --git a/drivers/iio/adc/Kconfig b/drivers/iio/adc/Kconfig
index 6bbee0b0dfff..38bc319904c4 100644
--- a/drivers/iio/adc/Kconfig
+++ b/drivers/iio/adc/Kconfig
@@ -441,6 +441,28 @@ config ROCKCHIP_SARADC
To compile this driver as a module, choose M here: the
module will be called rockchip_saradc.
+config STM32_ADC_CORE
+ tristate "STMicroelectronics STM32 adc core"
+ depends on ARCH_STM32 || COMPILE_TEST
+ depends on OF
+ depends on REGULATOR
+ help
+ Select this option to enable the core driver for STMicroelectronics
+ STM32 analog-to-digital converter (ADC).
+
+ This driver can also be built as a module. If so, the module
+ will be called stm32-adc-core.
+
+config STM32_ADC
+ tristate "STMicroelectronics STM32 adc"
+ depends on STM32_ADC_CORE
+ help
+ Say yes here to build support for STMicroelectronics stm32 Analog
+ to Digital Converter (ADC).
+
+ This driver can also be built as a module. If so, the module
+ will be called stm32-adc.
+
config STX104
tristate "Apex Embedded Systems STX104 driver"
depends on X86 && ISA_BUS_API
diff --git a/drivers/iio/adc/Makefile b/drivers/iio/adc/Makefile
index 9391217648cb..d36c4be8d1fc 100644
--- a/drivers/iio/adc/Makefile
+++ b/drivers/iio/adc/Makefile
@@ -43,6 +43,8 @@ obj-$(CONFIG_QCOM_SPMI_IADC) += qcom-spmi-iadc.o
obj-$(CONFIG_QCOM_SPMI_VADC) += qcom-spmi-vadc.o
obj-$(CONFIG_ROCKCHIP_SARADC) += rockchip_saradc.o
obj-$(CONFIG_STX104) += stx104.o
+obj-$(CONFIG_STM32_ADC_CORE) += stm32-adc-core.o
+obj-$(CONFIG_STM32_ADC) += stm32-adc.o
obj-$(CONFIG_TI_ADC081C) += ti-adc081c.o
obj-$(CONFIG_TI_ADC0832) += ti-adc0832.o
obj-$(CONFIG_TI_ADC12138) += ti-adc12138.o
diff --git a/drivers/iio/adc/stm32-adc-core.c b/drivers/iio/adc/stm32-adc-core.c
new file mode 100644
index 000000000000..4214b0cd6b1b
--- /dev/null
+++ b/drivers/iio/adc/stm32-adc-core.c
@@ -0,0 +1,303 @@
+/*
+ * This file is part of STM32 ADC driver
+ *
+ * Copyright (C) 2016, STMicroelectronics - All Rights Reserved
+ * Author: Fabrice Gasnier <fabrice.gasnier@st.com>.
+ *
+ * Inspired from: fsl-imx25-tsadc
+ *
+ * License type: GPLv2
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE.
+ * See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <linux/clk.h>
+#include <linux/interrupt.h>
+#include <linux/irqchip/chained_irq.h>
+#include <linux/irqdesc.h>
+#include <linux/irqdomain.h>
+#include <linux/module.h>
+#include <linux/of_device.h>
+#include <linux/regulator/consumer.h>
+#include <linux/slab.h>
+
+#include "stm32-adc-core.h"
+
+/* STM32F4 - common registers for all ADC instances: 1, 2 & 3 */
+#define STM32F4_ADC_CSR (STM32_ADCX_COMN_OFFSET + 0x00)
+#define STM32F4_ADC_CCR (STM32_ADCX_COMN_OFFSET + 0x04)
+
+/* STM32F4_ADC_CSR - bit fields */
+#define STM32F4_EOC3 BIT(17)
+#define STM32F4_EOC2 BIT(9)
+#define STM32F4_EOC1 BIT(1)
+
+/* STM32F4_ADC_CCR - bit fields */
+#define STM32F4_ADC_ADCPRE_SHIFT 16
+#define STM32F4_ADC_ADCPRE_MASK GENMASK(17, 16)
+
+/* STM32 F4 maximum analog clock rate (from datasheet) */
+#define STM32F4_ADC_MAX_CLK_RATE 36000000
+
+/**
+ * struct stm32_adc_priv - stm32 ADC core private data
+ * @irq: irq for ADC block
+ * @domain: irq domain reference
+ * @aclk: clock reference for the analog circuitry
+ * @vref: regulator reference
+ * @common: common data for all ADC instances
+ */
+struct stm32_adc_priv {
+ int irq;
+ struct irq_domain *domain;
+ struct clk *aclk;
+ struct regulator *vref;
+ struct stm32_adc_common common;
+};
+
+static struct stm32_adc_priv *to_stm32_adc_priv(struct stm32_adc_common *com)
+{
+ return container_of(com, struct stm32_adc_priv, common);
+}
+
+/* STM32F4 ADC internal common clock prescaler division ratios */
+static int stm32f4_pclk_div[] = {2, 4, 6, 8};
+
+/**
+ * stm32f4_adc_clk_sel() - Select stm32f4 ADC common clock prescaler
+ * @priv: stm32 ADC core private data
+ * Select clock prescaler used for analog conversions, before using ADC.
+ */
+static int stm32f4_adc_clk_sel(struct platform_device *pdev,
+ struct stm32_adc_priv *priv)
+{
+ unsigned long rate;
+ u32 val;
+ int i;
+
+ rate = clk_get_rate(priv->aclk);
+ for (i = 0; i < ARRAY_SIZE(stm32f4_pclk_div); i++) {
+ if ((rate / stm32f4_pclk_div[i]) <= STM32F4_ADC_MAX_CLK_RATE)
+ break;
+ }
+ if (i >= ARRAY_SIZE(stm32f4_pclk_div))
+ return -EINVAL;
+
+ val = readl_relaxed(priv->common.base + STM32F4_ADC_CCR);
+ val &= ~STM32F4_ADC_ADCPRE_MASK;
+ val |= i << STM32F4_ADC_ADCPRE_SHIFT;
+ writel_relaxed(val, priv->common.base + STM32F4_ADC_CCR);
+
+ dev_dbg(&pdev->dev, "Using analog clock source at %ld kHz\n",
+ rate / (stm32f4_pclk_div[i] * 1000));
+
+ return 0;
+}
+
+/* ADC common interrupt for all instances */
+static void stm32_adc_irq_handler(struct irq_desc *desc)
+{
+ struct stm32_adc_priv *priv = irq_desc_get_handler_data(desc);
+ struct irq_chip *chip = irq_desc_get_chip(desc);
+ u32 status;
+
+ chained_irq_enter(chip, desc);
+ status = readl_relaxed(priv->common.base + STM32F4_ADC_CSR);
+
+ if (status & STM32F4_EOC1)
+ generic_handle_irq(irq_find_mapping(priv->domain, 0));
+
+ if (status & STM32F4_EOC2)
+ generic_handle_irq(irq_find_mapping(priv->domain, 1));
+
+ if (status & STM32F4_EOC3)
+ generic_handle_irq(irq_find_mapping(priv->domain, 2));
+
+ chained_irq_exit(chip, desc);
+};
+
+static int stm32_adc_domain_map(struct irq_domain *d, unsigned int irq,
+ irq_hw_number_t hwirq)
+{
+ irq_set_chip_data(irq, d->host_data);
+ irq_set_chip_and_handler(irq, &dummy_irq_chip, handle_level_irq);
+
+ return 0;
+}
+
+static void stm32_adc_domain_unmap(struct irq_domain *d, unsigned int irq)
+{
+ irq_set_chip_and_handler(irq, NULL, NULL);
+ irq_set_chip_data(irq, NULL);
+}
+
+static const struct irq_domain_ops stm32_adc_domain_ops = {
+ .map = stm32_adc_domain_map,
+ .unmap = stm32_adc_domain_unmap,
+ .xlate = irq_domain_xlate_onecell,
+};
+
+static int stm32_adc_irq_probe(struct platform_device *pdev,
+ struct stm32_adc_priv *priv)
+{
+ struct device_node *np = pdev->dev.of_node;
+
+ priv->irq = platform_get_irq(pdev, 0);
+ if (priv->irq < 0) {
+ dev_err(&pdev->dev, "failed to get irq\n");
+ return priv->irq;
+ }
+
+ priv->domain = irq_domain_add_simple(np, STM32_ADC_MAX_ADCS, 0,
+ &stm32_adc_domain_ops,
+ priv);
+ if (!priv->domain) {
+ dev_err(&pdev->dev, "Failed to add irq domain\n");
+ return -ENOMEM;
+ }
+
+ irq_set_chained_handler(priv->irq, stm32_adc_irq_handler);
+ irq_set_handler_data(priv->irq, priv);
+
+ return 0;
+}
+
+static void stm32_adc_irq_remove(struct platform_device *pdev,
+ struct stm32_adc_priv *priv)
+{
+ int hwirq;
+
+ for (hwirq = 0; hwirq < STM32_ADC_MAX_ADCS; hwirq++)
+ irq_dispose_mapping(irq_find_mapping(priv->domain, hwirq));
+ irq_domain_remove(priv->domain);
+ irq_set_chained_handler(priv->irq, NULL);
+}
+
+static int stm32_adc_probe(struct platform_device *pdev)
+{
+ struct stm32_adc_priv *priv;
+ struct device_node *np = pdev->dev.of_node;
+ struct resource *res;
+ int ret;
+
+ if (!pdev->dev.of_node)
+ return -ENODEV;
+
+ priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);
+ if (!priv)
+ return -ENOMEM;
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ priv->common.base = devm_ioremap_resource(&pdev->dev, res);
+ if (IS_ERR(priv->common.base))
+ return PTR_ERR(priv->common.base);
+
+ priv->vref = devm_regulator_get(&pdev->dev, "vref");
+ if (IS_ERR(priv->vref)) {
+ ret = PTR_ERR(priv->vref);
+ dev_err(&pdev->dev, "vref get failed, %d\n", ret);
+ return ret;
+ }
+
+ ret = regulator_enable(priv->vref);
+ if (ret < 0) {
+ dev_err(&pdev->dev, "vref enable failed\n");
+ return ret;
+ }
+
+ ret = regulator_get_voltage(priv->vref);
+ if (ret < 0) {
+ dev_err(&pdev->dev, "vref get voltage failed, %d\n", ret);
+ goto err_regulator_disable;
+ }
+ priv->common.vref_mv = ret / 1000;
+ dev_dbg(&pdev->dev, "vref+=%dmV\n", priv->common.vref_mv);
+
+ priv->aclk = devm_clk_get(&pdev->dev, "adc");
+ if (IS_ERR(priv->aclk)) {
+ ret = PTR_ERR(priv->aclk);
+ dev_err(&pdev->dev, "Can't get 'adc' clock\n");
+ goto err_regulator_disable;
+ }
+
+ ret = clk_prepare_enable(priv->aclk);
+ if (ret < 0) {
+ dev_err(&pdev->dev, "adc clk enable failed\n");
+ goto err_regulator_disable;
+ }
+
+ ret = stm32f4_adc_clk_sel(pdev, priv);
+ if (ret < 0) {
+ dev_err(&pdev->dev, "adc clk selection failed\n");
+ goto err_clk_disable;
+ }
+
+ ret = stm32_adc_irq_probe(pdev, priv);
+ if (ret < 0)
+ goto err_clk_disable;
+
+ platform_set_drvdata(pdev, &priv->common);
+
+ ret = of_platform_populate(np, NULL, NULL, &pdev->dev);
+ if (ret < 0) {
+ dev_err(&pdev->dev, "failed to populate DT children\n");
+ goto err_irq_remove;
+ }
+
+ return 0;
+
+err_irq_remove:
+ stm32_adc_irq_remove(pdev, priv);
+
+err_clk_disable:
+ clk_disable_unprepare(priv->aclk);
+
+err_regulator_disable:
+ regulator_disable(priv->vref);
+
+ return ret;
+}
+
+static int stm32_adc_remove(struct platform_device *pdev)
+{
+ struct stm32_adc_common *common = platform_get_drvdata(pdev);
+ struct stm32_adc_priv *priv = to_stm32_adc_priv(common);
+
+ of_platform_depopulate(&pdev->dev);
+ stm32_adc_irq_remove(pdev, priv);
+ clk_disable_unprepare(priv->aclk);
+ regulator_disable(priv->vref);
+
+ return 0;
+}
+
+static const struct of_device_id stm32_adc_of_match[] = {
+ { .compatible = "st,stm32f4-adc-core" },
+ {},
+};
+MODULE_DEVICE_TABLE(of, stm32_adc_of_match);
+
+static struct platform_driver stm32_adc_driver = {
+ .probe = stm32_adc_probe,
+ .remove = stm32_adc_remove,
+ .driver = {
+ .name = "stm32-adc-core",
+ .of_match_table = stm32_adc_of_match,
+ },
+};
+module_platform_driver(stm32_adc_driver);
+
+MODULE_AUTHOR("Fabrice Gasnier <fabrice.gasnier@st.com>");
+MODULE_DESCRIPTION("STMicroelectronics STM32 ADC core driver");
+MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("platform:stm32-adc-core");
diff --git a/drivers/iio/adc/stm32-adc-core.h b/drivers/iio/adc/stm32-adc-core.h
new file mode 100644
index 000000000000..081fa5f55015
--- /dev/null
+++ b/drivers/iio/adc/stm32-adc-core.h
@@ -0,0 +1,52 @@
+/*
+ * This file is part of STM32 ADC driver
+ *
+ * Copyright (C) 2016, STMicroelectronics - All Rights Reserved
+ * Author: Fabrice Gasnier <fabrice.gasnier@st.com>.
+ *
+ * License type: GPLv2
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE.
+ * See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef __STM32_ADC_H
+#define __STM32_ADC_H
+
+/*
+ * STM32 - ADC global register map
+ * ________________________________________________________
+ * | Offset | Register |
+ * --------------------------------------------------------
+ * | 0x000 | Master ADC1 |
+ * --------------------------------------------------------
+ * | 0x100 | Slave ADC2 |
+ * --------------------------------------------------------
+ * | 0x200 | Slave ADC3 |
+ * --------------------------------------------------------
+ * | 0x300 | Master & Slave common regs |
+ * --------------------------------------------------------
+ */
+#define STM32_ADC_MAX_ADCS 3
+#define STM32_ADCX_COMN_OFFSET 0x300
+
+/**
+ * struct stm32_adc_common - stm32 ADC driver common data (for all instances)
+ * @base: control registers base cpu addr
+ * @vref_mv: vref voltage (mv)
+ */
+struct stm32_adc_common {
+ void __iomem *base;
+ int vref_mv;
+};
+
+#endif
diff --git a/drivers/iio/adc/stm32-adc.c b/drivers/iio/adc/stm32-adc.c
new file mode 100644
index 000000000000..5715e79f4935
--- /dev/null
+++ b/drivers/iio/adc/stm32-adc.c
@@ -0,0 +1,518 @@
+/*
+ * This file is part of STM32 ADC driver
+ *
+ * Copyright (C) 2016, STMicroelectronics - All Rights Reserved
+ * Author: Fabrice Gasnier <fabrice.gasnier@st.com>.
+ *
+ * License type: GPLv2
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE.
+ * See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <linux/clk.h>
+#include <linux/delay.h>
+#include <linux/iio/iio.h>
+#include <linux/interrupt.h>
+#include <linux/io.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/of.h>
+
+#include "stm32-adc-core.h"
+
+/* STM32F4 - Registers for each ADC instance */
+#define STM32F4_ADC_SR 0x00
+#define STM32F4_ADC_CR1 0x04
+#define STM32F4_ADC_CR2 0x08
+#define STM32F4_ADC_SMPR1 0x0C
+#define STM32F4_ADC_SMPR2 0x10
+#define STM32F4_ADC_HTR 0x24
+#define STM32F4_ADC_LTR 0x28
+#define STM32F4_ADC_SQR1 0x2C
+#define STM32F4_ADC_SQR2 0x30
+#define STM32F4_ADC_SQR3 0x34
+#define STM32F4_ADC_JSQR 0x38
+#define STM32F4_ADC_JDR1 0x3C
+#define STM32F4_ADC_JDR2 0x40
+#define STM32F4_ADC_JDR3 0x44
+#define STM32F4_ADC_JDR4 0x48
+#define STM32F4_ADC_DR 0x4C
+
+/* STM32F4_ADC_SR - bit fields */
+#define STM32F4_STRT BIT(4)
+#define STM32F4_EOC BIT(1)
+
+/* STM32F4_ADC_CR1 - bit fields */
+#define STM32F4_SCAN BIT(8)
+#define STM32F4_EOCIE BIT(5)
+
+/* STM32F4_ADC_CR2 - bit fields */
+#define STM32F4_SWSTART BIT(30)
+#define STM32F4_EXTEN_MASK GENMASK(29, 28)
+#define STM32F4_EOCS BIT(10)
+#define STM32F4_ADON BIT(0)
+
+/* STM32F4_ADC_SQR1 - bit fields */
+#define STM32F4_L_SHIFT 20
+#define STM32F4_L_MASK GENMASK(23, 20)
+
+/* STM32F4_ADC_SQR3 - bit fields */
+#define STM32F4_SQ1_SHIFT 0
+#define STM32F4_SQ1_MASK GENMASK(4, 0)
+
+#define STM32_ADC_TIMEOUT_US 100000
+#define STM32_ADC_TIMEOUT (msecs_to_jiffies(STM32_ADC_TIMEOUT_US / 1000))
+
+/**
+ * struct stm32_adc - private data of each ADC IIO instance
+ * @common: reference to ADC block common data
+ * @offset: ADC instance register offset in ADC block
+ * @completion: end of single conversion completion
+ * @buffer: data buffer
+ * @clk: clock for this adc instance
+ * @irq: interrupt for this adc instance
+ * @lock: spinlock
+ */
+struct stm32_adc {
+ struct stm32_adc_common *common;
+ u32 offset;
+ struct completion completion;
+ u16 *buffer;
+ struct clk *clk;
+ int irq;
+ spinlock_t lock; /* interrupt lock */
+};
+
+/**
+ * struct stm32_adc_chan_spec - specification of stm32 adc channel
+ * @type: IIO channel type
+ * @channel: channel number (single ended)
+ * @name: channel name (single ended)
+ */
+struct stm32_adc_chan_spec {
+ enum iio_chan_type type;
+ int channel;
+ const char *name;
+};
+
+/* Input definitions common for all STM32F4 instances */
+static const struct stm32_adc_chan_spec stm32f4_adc123_channels[] = {
+ { IIO_VOLTAGE, 0, "in0" },
+ { IIO_VOLTAGE, 1, "in1" },
+ { IIO_VOLTAGE, 2, "in2" },
+ { IIO_VOLTAGE, 3, "in3" },
+ { IIO_VOLTAGE, 4, "in4" },
+ { IIO_VOLTAGE, 5, "in5" },
+ { IIO_VOLTAGE, 6, "in6" },
+ { IIO_VOLTAGE, 7, "in7" },
+ { IIO_VOLTAGE, 8, "in8" },
+ { IIO_VOLTAGE, 9, "in9" },
+ { IIO_VOLTAGE, 10, "in10" },
+ { IIO_VOLTAGE, 11, "in11" },
+ { IIO_VOLTAGE, 12, "in12" },
+ { IIO_VOLTAGE, 13, "in13" },
+ { IIO_VOLTAGE, 14, "in14" },
+ { IIO_VOLTAGE, 15, "in15" },
+};
+
+/**
+ * STM32 ADC registers access routines
+ * @adc: stm32 adc instance
+ * @reg: reg offset in adc instance
+ *
+ * Note: All instances share same base, with 0x0, 0x100 or 0x200 offset resp.
+ * for adc1, adc2 and adc3.
+ */
+static u32 stm32_adc_readl(struct stm32_adc *adc, u32 reg)
+{
+ return readl_relaxed(adc->common->base + adc->offset + reg);
+}
+
+static u16 stm32_adc_readw(struct stm32_adc *adc, u32 reg)
+{
+ return readw_relaxed(adc->common->base + adc->offset + reg);
+}
+
+static void stm32_adc_writel(struct stm32_adc *adc, u32 reg, u32 val)
+{
+ writel_relaxed(val, adc->common->base + adc->offset + reg);
+}
+
+static void stm32_adc_set_bits(struct stm32_adc *adc, u32 reg, u32 bits)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(&adc->lock, flags);
+ stm32_adc_writel(adc, reg, stm32_adc_readl(adc, reg) | bits);
+ spin_unlock_irqrestore(&adc->lock, flags);
+}
+
+static void stm32_adc_clr_bits(struct stm32_adc *adc, u32 reg, u32 bits)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(&adc->lock, flags);
+ stm32_adc_writel(adc, reg, stm32_adc_readl(adc, reg) & ~bits);
+ spin_unlock_irqrestore(&adc->lock, flags);
+}
+
+/**
+ * stm32_adc_conv_irq_enable() - Enable end of conversion interrupt
+ * @adc: stm32 adc instance
+ */
+static void stm32_adc_conv_irq_enable(struct stm32_adc *adc)
+{
+ stm32_adc_set_bits(adc, STM32F4_ADC_CR1, STM32F4_EOCIE);
+};
+
+/**
+ * stm32_adc_conv_irq_disable() - Disable end of conversion interrupt
+ * @adc: stm32 adc instance
+ */
+static void stm32_adc_conv_irq_disable(struct stm32_adc *adc)
+{
+ stm32_adc_clr_bits(adc, STM32F4_ADC_CR1, STM32F4_EOCIE);
+}
+
+/**
+ * stm32_adc_start_conv() - Start conversions for regular channels.
+ * @adc: stm32 adc instance
+ */
+static void stm32_adc_start_conv(struct stm32_adc *adc)
+{
+ stm32_adc_set_bits(adc, STM32F4_ADC_CR1, STM32F4_SCAN);
+ stm32_adc_set_bits(adc, STM32F4_ADC_CR2, STM32F4_EOCS | STM32F4_ADON);
+
+ /* Wait for Power-up time (tSTAB from datasheet) */
+ usleep_range(2, 3);
+
+ /* Software start ? (e.g. trigger detection disabled ?) */
+ if (!(stm32_adc_readl(adc, STM32F4_ADC_CR2) & STM32F4_EXTEN_MASK))
+ stm32_adc_set_bits(adc, STM32F4_ADC_CR2, STM32F4_SWSTART);
+}
+
+static void stm32_adc_stop_conv(struct stm32_adc *adc)
+{
+ stm32_adc_clr_bits(adc, STM32F4_ADC_CR2, STM32F4_EXTEN_MASK);
+ stm32_adc_clr_bits(adc, STM32F4_ADC_SR, STM32F4_STRT);
+
+ stm32_adc_clr_bits(adc, STM32F4_ADC_CR1, STM32F4_SCAN);
+ stm32_adc_clr_bits(adc, STM32F4_ADC_CR2, STM32F4_ADON);
+}
+
+/**
+ * stm32_adc_single_conv() - Performs a single conversion
+ * @indio_dev: IIO device
+ * @chan: IIO channel
+ * @res: conversion result
+ *
+ * The function performs a single conversion on a given channel:
+ * - Program sequencer with one channel (e.g. in SQ1 with len = 1)
+ * - Use SW trigger
+ * - Start conversion, then wait for interrupt completion.
+ */
+static int stm32_adc_single_conv(struct iio_dev *indio_dev,
+ const struct iio_chan_spec *chan,
+ int *res)
+{
+ struct stm32_adc *adc = iio_priv(indio_dev);
+ long timeout;
+ u32 val;
+ u16 result;
+ int ret;
+
+ reinit_completion(&adc->completion);
+
+ adc->buffer = &result;
+
+ /* Program chan number in regular sequence */
+ val = stm32_adc_readl(adc, STM32F4_ADC_SQR3);
+ val &= ~STM32F4_SQ1_MASK;
+ val |= chan->channel << STM32F4_SQ1_SHIFT;
+ stm32_adc_writel(adc, STM32F4_ADC_SQR3, val);
+
+ /* Set regular sequence len (0 for 1 conversion) */
+ stm32_adc_clr_bits(adc, STM32F4_ADC_SQR1, STM32F4_L_MASK);
+
+ /* Trigger detection disabled (conversion can be launched in SW) */
+ stm32_adc_clr_bits(adc, STM32F4_ADC_CR2, STM32F4_EXTEN_MASK);
+
+ stm32_adc_conv_irq_enable(adc);
+
+ stm32_adc_start_conv(adc);
+
+ timeout = wait_for_completion_interruptible_timeout(
+ &adc->completion, STM32_ADC_TIMEOUT);
+ if (timeout == 0) {
+ ret = -ETIMEDOUT;
+ } else if (timeout < 0) {
+ ret = timeout;
+ } else {
+ *res = result;
+ ret = IIO_VAL_INT;
+ }
+
+ stm32_adc_stop_conv(adc);
+
+ stm32_adc_conv_irq_disable(adc);
+
+ return ret;
+}
+
+static int stm32_adc_read_raw(struct iio_dev *indio_dev,
+ struct iio_chan_spec const *chan,
+ int *val, int *val2, long mask)
+{
+ struct stm32_adc *adc = iio_priv(indio_dev);
+ int ret;
+
+ switch (mask) {
+ case IIO_CHAN_INFO_RAW:
+ ret = iio_device_claim_direct_mode(indio_dev);
+ if (ret)
+ return ret;
+ if (chan->type == IIO_VOLTAGE)
+ ret = stm32_adc_single_conv(indio_dev, chan, val);
+ else
+ ret = -EINVAL;
+ iio_device_release_direct_mode(indio_dev);
+ return ret;
+
+ case IIO_CHAN_INFO_SCALE:
+ *val = adc->common->vref_mv;
+ *val2 = chan->scan_type.realbits;
+ return IIO_VAL_FRACTIONAL_LOG2;
+
+ default:
+ return -EINVAL;
+ }
+}
+
+static irqreturn_t stm32_adc_isr(int irq, void *data)
+{
+ struct stm32_adc *adc = data;
+ u32 status = stm32_adc_readl(adc, STM32F4_ADC_SR);
+
+ if (status & STM32F4_EOC) {
+ *adc->buffer = stm32_adc_readw(adc, STM32F4_ADC_DR);
+ complete(&adc->completion);
+ return IRQ_HANDLED;
+ }
+
+ return IRQ_NONE;
+}
+
+static int stm32_adc_of_xlate(struct iio_dev *indio_dev,
+ const struct of_phandle_args *iiospec)
+{
+ int i;
+
+ for (i = 0; i < indio_dev->num_channels; i++)
+ if (indio_dev->channels[i].channel == iiospec->args[0])
+ return i;
+
+ return -EINVAL;
+}
+
+/**
+ * stm32_adc_debugfs_reg_access - read or write register value
+ *
+ * To read a value from an ADC register:
+ * echo [ADC reg offset] > direct_reg_access
+ * cat direct_reg_access
+ *
+ * To write a value in a ADC register:
+ * echo [ADC_reg_offset] [value] > direct_reg_access
+ */
+static int stm32_adc_debugfs_reg_access(struct iio_dev *indio_dev,
+ unsigned reg, unsigned writeval,
+ unsigned *readval)
+{
+ struct stm32_adc *adc = iio_priv(indio_dev);
+
+ if (!readval)
+ stm32_adc_writel(adc, reg, writeval);
+ else
+ *readval = stm32_adc_readl(adc, reg);
+
+ return 0;
+}
+
+static const struct iio_info stm32_adc_iio_info = {
+ .read_raw = stm32_adc_read_raw,
+ .debugfs_reg_access = stm32_adc_debugfs_reg_access,
+ .of_xlate = stm32_adc_of_xlate,
+ .driver_module = THIS_MODULE,
+};
+
+static void stm32_adc_chan_init_one(struct iio_dev *indio_dev,
+ struct iio_chan_spec *chan,
+ const struct stm32_adc_chan_spec *channel,
+ int scan_index)
+{
+ chan->type = channel->type;
+ chan->channel = channel->channel;
+ chan->datasheet_name = channel->name;
+ chan->scan_index = scan_index;
+ chan->indexed = 1;
+ chan->info_mask_separate = BIT(IIO_CHAN_INFO_RAW);
+ chan->info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SCALE);
+ chan->scan_type.sign = 'u';
+ chan->scan_type.realbits = 12;
+ chan->scan_type.storagebits = 16;
+}
+
+static int stm32_adc_chan_of_init(struct iio_dev *indio_dev)
+{
+ struct device_node *node = indio_dev->dev.of_node;
+ struct property *prop;
+ const __be32 *cur;
+ struct iio_chan_spec *channels;
+ int scan_index = 0, num_channels;
+ u32 val;
+
+ num_channels = of_property_count_u32_elems(node, "st,adc-channels");
+ if (num_channels < 0 ||
+ num_channels >= ARRAY_SIZE(stm32f4_adc123_channels)) {
+ dev_err(&indio_dev->dev, "Bad st,adc-channels?\n");
+ return num_channels < 0 ? num_channels : -EINVAL;
+ }
+
+ channels = devm_kcalloc(&indio_dev->dev, num_channels,
+ sizeof(struct iio_chan_spec), GFP_KERNEL);
+ if (!channels)
+ return -ENOMEM;
+
+ of_property_for_each_u32(node, "st,adc-channels", prop, cur, val) {
+ if (val >= ARRAY_SIZE(stm32f4_adc123_channels)) {
+ dev_err(&indio_dev->dev, "Invalid channel %d\n", val);
+ return -EINVAL;
+ }
+ stm32_adc_chan_init_one(indio_dev, &channels[scan_index],
+ &stm32f4_adc123_channels[val],
+ scan_index);
+ scan_index++;
+ }
+
+ indio_dev->num_channels = scan_index;
+ indio_dev->channels = channels;
+
+ return 0;
+}
+
+static int stm32_adc_probe(struct platform_device *pdev)
+{
+ struct iio_dev *indio_dev;
+ struct stm32_adc *adc;
+ int ret;
+
+ if (!pdev->dev.of_node)
+ return -ENODEV;
+
+ indio_dev = devm_iio_device_alloc(&pdev->dev, sizeof(*adc));
+ if (!indio_dev)
+ return -ENOMEM;
+
+ adc = iio_priv(indio_dev);
+ adc->common = dev_get_drvdata(pdev->dev.parent);
+ spin_lock_init(&adc->lock);
+ init_completion(&adc->completion);
+
+ indio_dev->name = dev_name(&pdev->dev);
+ indio_dev->dev.parent = &pdev->dev;
+ indio_dev->dev.of_node = pdev->dev.of_node;
+ indio_dev->info = &stm32_adc_iio_info;
+ indio_dev->modes = INDIO_DIRECT_MODE;
+
+ platform_set_drvdata(pdev, adc);
+
+ ret = of_property_read_u32(pdev->dev.of_node, "reg", &adc->offset);
+ if (ret != 0) {
+ dev_err(&pdev->dev, "missing reg property\n");
+ return -EINVAL;
+ }
+
+ adc->irq = platform_get_irq(pdev, 0);
+ if (adc->irq < 0) {
+ dev_err(&pdev->dev, "failed to get irq\n");
+ return adc->irq;
+ }
+
+ ret = devm_request_irq(&pdev->dev, adc->irq, stm32_adc_isr,
+ 0, pdev->name, adc);
+ if (ret) {
+ dev_err(&pdev->dev, "failed to request IRQ\n");
+ return ret;
+ }
+
+ adc->clk = devm_clk_get(&pdev->dev, NULL);
+ if (IS_ERR(adc->clk)) {
+ dev_err(&pdev->dev, "Can't get clock\n");
+ return PTR_ERR(adc->clk);
+ }
+
+ ret = clk_prepare_enable(adc->clk);
+ if (ret < 0) {
+ dev_err(&pdev->dev, "clk enable failed\n");
+ return ret;
+ }
+
+ ret = stm32_adc_chan_of_init(indio_dev);
+ if (ret < 0)
+ goto err_clk_disable;
+
+ ret = iio_device_register(indio_dev);
+ if (ret) {
+ dev_err(&pdev->dev, "iio dev register failed\n");
+ goto err_clk_disable;
+ }
+
+ return 0;
+
+err_clk_disable:
+ clk_disable_unprepare(adc->clk);
+
+ return ret;
+}
+
+static int stm32_adc_remove(struct platform_device *pdev)
+{
+ struct stm32_adc *adc = platform_get_drvdata(pdev);
+ struct iio_dev *indio_dev = iio_priv_to_dev(adc);
+
+ iio_device_unregister(indio_dev);
+ clk_disable_unprepare(adc->clk);
+
+ return 0;
+}
+
+static const struct of_device_id stm32_adc_of_match[] = {
+ { .compatible = "st,stm32f4-adc" },
+ {},
+};
+MODULE_DEVICE_TABLE(of, stm32_adc_of_match);
+
+static struct platform_driver stm32_adc_driver = {
+ .probe = stm32_adc_probe,
+ .remove = stm32_adc_remove,
+ .driver = {
+ .name = "stm32-adc",
+ .of_match_table = stm32_adc_of_match,
+ },
+};
+module_platform_driver(stm32_adc_driver);
+
+MODULE_AUTHOR("Fabrice Gasnier <fabrice.gasnier@st.com>");
+MODULE_DESCRIPTION("STMicroelectronics STM32 ADC IIO driver");
+MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("platform:stm32-adc");
diff --git a/drivers/iio/light/tsl2583.c b/drivers/iio/light/tsl2583.c
index 0b87f6adbb79..a78b6025c465 100644
--- a/drivers/iio/light/tsl2583.c
+++ b/drivers/iio/light/tsl2583.c
@@ -565,7 +565,7 @@ static ssize_t in_illuminance_lux_table_store(struct device *dev,
struct iio_dev *indio_dev = dev_to_iio_dev(dev);
struct tsl2583_chip *chip = iio_priv(indio_dev);
const unsigned int max_ints = TSL2583_MAX_LUX_TABLE_ENTRIES * 3;
- int value[TSL2583_MAX_LUX_TABLE_ENTRIES * 3];
+ int value[TSL2583_MAX_LUX_TABLE_ENTRIES * 3 + 1];
int ret = -EINVAL;
unsigned int n;
diff --git a/drivers/iio/magnetometer/hid-sensor-magn-3d.c b/drivers/iio/magnetometer/hid-sensor-magn-3d.c
index d8a0c8da8db0..0e791b02ed4a 100644
--- a/drivers/iio/magnetometer/hid-sensor-magn-3d.c
+++ b/drivers/iio/magnetometer/hid-sensor-magn-3d.c
@@ -42,9 +42,17 @@ enum magn_3d_channel {
MAGN_3D_CHANNEL_MAX,
};
+struct common_attributes {
+ int scale_pre_decml;
+ int scale_post_decml;
+ int scale_precision;
+ int value_offset;
+};
+
struct magn_3d_state {
struct hid_sensor_hub_callbacks callbacks;
- struct hid_sensor_common common_attributes;
+ struct hid_sensor_common magn_flux_attributes;
+ struct hid_sensor_common rot_attributes;
struct hid_sensor_hub_attribute_info magn[MAGN_3D_CHANNEL_MAX];
/* dynamically sized array to hold sensor values */
@@ -52,10 +60,8 @@ struct magn_3d_state {
/* array of pointers to sensor value */
u32 *magn_val_addr[MAGN_3D_CHANNEL_MAX];
- int scale_pre_decml;
- int scale_post_decml;
- int scale_precision;
- int value_offset;
+ struct common_attributes magn_flux_attr;
+ struct common_attributes rot_attr;
};
static const u32 magn_3d_addresses[MAGN_3D_CHANNEL_MAX] = {
@@ -162,41 +168,74 @@ static int magn_3d_read_raw(struct iio_dev *indio_dev,
*val2 = 0;
switch (mask) {
case 0:
- hid_sensor_power_state(&magn_state->common_attributes, true);
+ hid_sensor_power_state(&magn_state->magn_flux_attributes, true);
report_id =
magn_state->magn[chan->address].report_id;
address = magn_3d_addresses[chan->address];
if (report_id >= 0)
*val = sensor_hub_input_attr_get_raw_value(
- magn_state->common_attributes.hsdev,
+ magn_state->magn_flux_attributes.hsdev,
HID_USAGE_SENSOR_COMPASS_3D, address,
report_id,
SENSOR_HUB_SYNC);
else {
*val = 0;
- hid_sensor_power_state(&magn_state->common_attributes,
- false);
+ hid_sensor_power_state(
+ &magn_state->magn_flux_attributes,
+ false);
return -EINVAL;
}
- hid_sensor_power_state(&magn_state->common_attributes, false);
+ hid_sensor_power_state(&magn_state->magn_flux_attributes,
+ false);
ret_type = IIO_VAL_INT;
break;
case IIO_CHAN_INFO_SCALE:
- *val = magn_state->scale_pre_decml;
- *val2 = magn_state->scale_post_decml;
- ret_type = magn_state->scale_precision;
+ switch (chan->type) {
+ case IIO_MAGN:
+ *val = magn_state->magn_flux_attr.scale_pre_decml;
+ *val2 = magn_state->magn_flux_attr.scale_post_decml;
+ ret_type = magn_state->magn_flux_attr.scale_precision;
+ break;
+ case IIO_ROT:
+ *val = magn_state->rot_attr.scale_pre_decml;
+ *val2 = magn_state->rot_attr.scale_post_decml;
+ ret_type = magn_state->rot_attr.scale_precision;
+ break;
+ default:
+ ret_type = -EINVAL;
+ }
break;
case IIO_CHAN_INFO_OFFSET:
- *val = magn_state->value_offset;
- ret_type = IIO_VAL_INT;
+ switch (chan->type) {
+ case IIO_MAGN:
+ *val = magn_state->magn_flux_attr.value_offset;
+ ret_type = IIO_VAL_INT;
+ break;
+ case IIO_ROT:
+ *val = magn_state->rot_attr.value_offset;
+ ret_type = IIO_VAL_INT;
+ break;
+ default:
+ ret_type = -EINVAL;
+ }
break;
case IIO_CHAN_INFO_SAMP_FREQ:
ret_type = hid_sensor_read_samp_freq_value(
- &magn_state->common_attributes, val, val2);
+ &magn_state->magn_flux_attributes, val, val2);
break;
case IIO_CHAN_INFO_HYSTERESIS:
- ret_type = hid_sensor_read_raw_hyst_value(
- &magn_state->common_attributes, val, val2);
+ switch (chan->type) {
+ case IIO_MAGN:
+ ret_type = hid_sensor_read_raw_hyst_value(
+ &magn_state->magn_flux_attributes, val, val2);
+ break;
+ case IIO_ROT:
+ ret_type = hid_sensor_read_raw_hyst_value(
+ &magn_state->rot_attributes, val, val2);
+ break;
+ default:
+ ret_type = -EINVAL;
+ }
break;
default:
ret_type = -EINVAL;
@@ -219,11 +258,21 @@ static int magn_3d_write_raw(struct iio_dev *indio_dev,
switch (mask) {
case IIO_CHAN_INFO_SAMP_FREQ:
ret = hid_sensor_write_samp_freq_value(
- &magn_state->common_attributes, val, val2);
+ &magn_state->magn_flux_attributes, val, val2);
break;
case IIO_CHAN_INFO_HYSTERESIS:
- ret = hid_sensor_write_raw_hyst_value(
- &magn_state->common_attributes, val, val2);
+ switch (chan->type) {
+ case IIO_MAGN:
+ ret = hid_sensor_write_raw_hyst_value(
+ &magn_state->magn_flux_attributes, val, val2);
+ break;
+ case IIO_ROT:
+ ret = hid_sensor_write_raw_hyst_value(
+ &magn_state->rot_attributes, val, val2);
+ break;
+ default:
+ ret = -EINVAL;
+ }
break;
default:
ret = -EINVAL;
@@ -254,7 +303,7 @@ static int magn_3d_proc_event(struct hid_sensor_hub_device *hsdev,
struct magn_3d_state *magn_state = iio_priv(indio_dev);
dev_dbg(&indio_dev->dev, "magn_3d_proc_event\n");
- if (atomic_read(&magn_state->common_attributes.data_ready))
+ if (atomic_read(&magn_state->magn_flux_attributes.data_ready))
hid_sensor_push_data(indio_dev, magn_state->iio_vals);
return 0;
@@ -389,21 +438,48 @@ static int magn_3d_parse_report(struct platform_device *pdev,
dev_dbg(&pdev->dev, "magn_3d Setup %d IIO channels\n",
*chan_count);
- st->scale_precision = hid_sensor_format_scale(
+ st->magn_flux_attr.scale_precision = hid_sensor_format_scale(
HID_USAGE_SENSOR_COMPASS_3D,
&st->magn[CHANNEL_SCAN_INDEX_X],
- &st->scale_pre_decml, &st->scale_post_decml);
+ &st->magn_flux_attr.scale_pre_decml,
+ &st->magn_flux_attr.scale_post_decml);
+ st->rot_attr.scale_precision
+ = hid_sensor_format_scale(
+ HID_USAGE_SENSOR_ORIENT_COMP_MAGN_NORTH,
+ &st->magn[CHANNEL_SCAN_INDEX_NORTH_MAGN_TILT_COMP],
+ &st->rot_attr.scale_pre_decml,
+ &st->rot_attr.scale_post_decml);
/* Set Sensitivity field ids, when there is no individual modifier */
- if (st->common_attributes.sensitivity.index < 0) {
+ if (st->magn_flux_attributes.sensitivity.index < 0) {
sensor_hub_input_get_attribute_info(hsdev,
HID_FEATURE_REPORT, usage_id,
HID_USAGE_SENSOR_DATA_MOD_CHANGE_SENSITIVITY_ABS |
HID_USAGE_SENSOR_DATA_ORIENTATION,
- &st->common_attributes.sensitivity);
+ &st->magn_flux_attributes.sensitivity);
+ dev_dbg(&pdev->dev, "Sensitivity index:report %d:%d\n",
+ st->magn_flux_attributes.sensitivity.index,
+ st->magn_flux_attributes.sensitivity.report_id);
+ }
+ if (st->magn_flux_attributes.sensitivity.index < 0) {
+ sensor_hub_input_get_attribute_info(hsdev,
+ HID_FEATURE_REPORT, usage_id,
+ HID_USAGE_SENSOR_DATA_MOD_CHANGE_SENSITIVITY_ABS |
+ HID_USAGE_SENSOR_ORIENT_MAGN_FLUX,
+ &st->magn_flux_attributes.sensitivity);
+ dev_dbg(&pdev->dev, "Sensitivity index:report %d:%d\n",
+ st->magn_flux_attributes.sensitivity.index,
+ st->magn_flux_attributes.sensitivity.report_id);
+ }
+ if (st->rot_attributes.sensitivity.index < 0) {
+ sensor_hub_input_get_attribute_info(hsdev,
+ HID_FEATURE_REPORT, usage_id,
+ HID_USAGE_SENSOR_DATA_MOD_CHANGE_SENSITIVITY_ABS |
+ HID_USAGE_SENSOR_ORIENT_COMP_MAGN_NORTH,
+ &st->rot_attributes.sensitivity);
dev_dbg(&pdev->dev, "Sensitivity index:report %d:%d\n",
- st->common_attributes.sensitivity.index,
- st->common_attributes.sensitivity.report_id);
+ st->rot_attributes.sensitivity.index,
+ st->rot_attributes.sensitivity.report_id);
}
return 0;
@@ -428,16 +504,17 @@ static int hid_magn_3d_probe(struct platform_device *pdev)
platform_set_drvdata(pdev, indio_dev);
magn_state = iio_priv(indio_dev);
- magn_state->common_attributes.hsdev = hsdev;
- magn_state->common_attributes.pdev = pdev;
+ magn_state->magn_flux_attributes.hsdev = hsdev;
+ magn_state->magn_flux_attributes.pdev = pdev;
ret = hid_sensor_parse_common_attributes(hsdev,
HID_USAGE_SENSOR_COMPASS_3D,
- &magn_state->common_attributes);
+ &magn_state->magn_flux_attributes);
if (ret) {
dev_err(&pdev->dev, "failed to setup common attributes\n");
return ret;
}
+ magn_state->rot_attributes = magn_state->magn_flux_attributes;
ret = magn_3d_parse_report(pdev, hsdev,
&channels, &chan_count,
@@ -460,9 +537,9 @@ static int hid_magn_3d_probe(struct platform_device *pdev)
dev_err(&pdev->dev, "failed to initialize trigger buffer\n");
return ret;
}
- atomic_set(&magn_state->common_attributes.data_ready, 0);
+ atomic_set(&magn_state->magn_flux_attributes.data_ready, 0);
ret = hid_sensor_setup_trigger(indio_dev, name,
- &magn_state->common_attributes);
+ &magn_state->magn_flux_attributes);
if (ret < 0) {
dev_err(&pdev->dev, "trigger setup failed\n");
goto error_unreg_buffer_funcs;
@@ -489,7 +566,7 @@ static int hid_magn_3d_probe(struct platform_device *pdev)
error_iio_unreg:
iio_device_unregister(indio_dev);
error_remove_trigger:
- hid_sensor_remove_trigger(&magn_state->common_attributes);
+ hid_sensor_remove_trigger(&magn_state->magn_flux_attributes);
error_unreg_buffer_funcs:
iio_triggered_buffer_cleanup(indio_dev);
return ret;
@@ -504,7 +581,7 @@ static int hid_magn_3d_remove(struct platform_device *pdev)
sensor_hub_remove_callback(hsdev, HID_USAGE_SENSOR_COMPASS_3D);
iio_device_unregister(indio_dev);
- hid_sensor_remove_trigger(&magn_state->common_attributes);
+ hid_sensor_remove_trigger(&magn_state->magn_flux_attributes);
iio_triggered_buffer_cleanup(indio_dev);
return 0;