* [PATCH v2 1/6] iio: bmg160: Use i2c regmap instead of direct i2c access
2015-08-04 11:02 [PATCH v2 0/6] iio: bmg160: Add SPI connection Markus Pargmann
@ 2015-08-04 11:02 ` Markus Pargmann
2015-08-09 6:47 ` Markus Pargmann
2015-08-04 11:02 ` [PATCH v2 2/6] iio: bmg160: Remove i2c_client from data struct Markus Pargmann
` (5 subsequent siblings)
6 siblings, 1 reply; 12+ messages in thread
From: Markus Pargmann @ 2015-08-04 11:02 UTC (permalink / raw)
To: Jonathan Cameron
Cc: Srinivas Pandruvada, Vlad Dogaru, Paul Bolle, linux-iio,
linux-kernel, kernel, Markus Pargmann
This patch introduces regmap usage into the driver. This is done to
later easily support the SPI interface of this chip.
Signed-off-by: Markus Pargmann <mpa@pengutronix.de>
---
drivers/iio/gyro/Kconfig | 2 +
drivers/iio/gyro/bmg160.c | 200 +++++++++++++++++++++-------------------------
2 files changed, 91 insertions(+), 111 deletions(-)
diff --git a/drivers/iio/gyro/Kconfig b/drivers/iio/gyro/Kconfig
index 8d2439345673..b44984b3bb24 100644
--- a/drivers/iio/gyro/Kconfig
+++ b/drivers/iio/gyro/Kconfig
@@ -55,6 +55,8 @@ config BMG160
depends on I2C
select IIO_BUFFER
select IIO_TRIGGERED_BUFFER
+ select REGMAP
+ select REGMAP_I2C
help
Say yes here to build support for Bosch BMG160 Tri-axis Gyro Sensor
driver. This driver also supports BMI055 gyroscope.
diff --git a/drivers/iio/gyro/bmg160.c b/drivers/iio/gyro/bmg160.c
index 460bf715d541..626f5c98dde8 100644
--- a/drivers/iio/gyro/bmg160.c
+++ b/drivers/iio/gyro/bmg160.c
@@ -28,6 +28,7 @@
#include <linux/iio/events.h>
#include <linux/iio/trigger_consumer.h>
#include <linux/iio/triggered_buffer.h>
+#include <linux/regmap.h>
#define BMG160_DRV_NAME "bmg160"
#define BMG160_IRQ_NAME "bmg160_event"
@@ -98,6 +99,7 @@
struct bmg160_data {
struct i2c_client *client;
+ struct regmap *regmap;
struct iio_trigger *dready_trig;
struct iio_trigger *motion_trig;
struct mutex mutex;
@@ -134,12 +136,19 @@ static const struct {
{ 133, BMG160_RANGE_250DPS},
{ 66, BMG160_RANGE_125DPS} };
+struct regmap_config bmg160_regmap_i2c_conf = {
+ .reg_bits = 8,
+ .val_bits = 8,
+
+ .use_single_rw = true,
+ .cache_type = REGCACHE_NONE,
+};
+
static int bmg160_set_mode(struct bmg160_data *data, u8 mode)
{
int ret;
- ret = i2c_smbus_write_byte_data(data->client,
- BMG160_REG_PMU_LPW, mode);
+ ret = regmap_write(data->regmap, BMG160_REG_PMU_LPW, mode);
if (ret < 0) {
dev_err(&data->client->dev, "Error writing reg_pmu_lpw\n");
return ret;
@@ -169,8 +178,7 @@ static int bmg160_set_bw(struct bmg160_data *data, int val)
if (bw_bits < 0)
return bw_bits;
- ret = i2c_smbus_write_byte_data(data->client, BMG160_REG_PMU_BW,
- bw_bits);
+ ret = regmap_write(data->regmap, BMG160_REG_PMU_BW, bw_bits);
if (ret < 0) {
dev_err(&data->client->dev, "Error writing reg_pmu_bw\n");
return ret;
@@ -184,16 +192,17 @@ static int bmg160_set_bw(struct bmg160_data *data, int val)
static int bmg160_chip_init(struct bmg160_data *data)
{
int ret;
+ unsigned int val;
- ret = i2c_smbus_read_byte_data(data->client, BMG160_REG_CHIP_ID);
+ ret = regmap_read(data->regmap, BMG160_REG_CHIP_ID, &val);
if (ret < 0) {
dev_err(&data->client->dev, "Error reading reg_chip_id\n");
return ret;
}
- dev_dbg(&data->client->dev, "Chip Id %x\n", ret);
- if (ret != BMG160_CHIP_ID_VAL) {
- dev_err(&data->client->dev, "invalid chip %x\n", ret);
+ dev_dbg(&data->client->dev, "Chip Id %x\n", val);
+ if (val != BMG160_CHIP_ID_VAL) {
+ dev_err(&data->client->dev, "invalid chip %x\n", val);
return -ENODEV;
}
@@ -210,40 +219,31 @@ static int bmg160_chip_init(struct bmg160_data *data)
return ret;
/* Set Default Range */
- ret = i2c_smbus_write_byte_data(data->client,
- BMG160_REG_RANGE,
- BMG160_RANGE_500DPS);
+ ret = regmap_write(data->regmap, BMG160_REG_RANGE, BMG160_RANGE_500DPS);
if (ret < 0) {
dev_err(&data->client->dev, "Error writing reg_range\n");
return ret;
}
data->dps_range = BMG160_RANGE_500DPS;
- ret = i2c_smbus_read_byte_data(data->client, BMG160_REG_SLOPE_THRES);
+ ret = regmap_read(data->regmap, BMG160_REG_SLOPE_THRES, &val);
if (ret < 0) {
dev_err(&data->client->dev, "Error reading reg_slope_thres\n");
return ret;
}
- data->slope_thres = ret;
+ data->slope_thres = val;
/* Set default interrupt mode */
- ret = i2c_smbus_read_byte_data(data->client, BMG160_REG_INT_EN_1);
- if (ret < 0) {
- dev_err(&data->client->dev, "Error reading reg_int_en_1\n");
- return ret;
- }
- ret &= ~BMG160_INT1_BIT_OD;
- ret = i2c_smbus_write_byte_data(data->client,
- BMG160_REG_INT_EN_1, ret);
+ ret = regmap_update_bits(data->regmap, BMG160_REG_INT_EN_1,
+ BMG160_INT1_BIT_OD, 0);
if (ret < 0) {
- dev_err(&data->client->dev, "Error writing reg_int_en_1\n");
+ dev_err(&data->client->dev, "Error updating bits in reg_int_en_1\n");
return ret;
}
- ret = i2c_smbus_write_byte_data(data->client,
- BMG160_REG_INT_RST_LATCH,
- BMG160_INT_MODE_LATCH_INT |
- BMG160_INT_MODE_LATCH_RESET);
+ ret = regmap_write(data->regmap, BMG160_REG_INT_RST_LATCH,
+ BMG160_INT_MODE_LATCH_INT |
+ BMG160_INT_MODE_LATCH_RESET);
if (ret < 0) {
dev_err(&data->client->dev,
"Error writing reg_motion_intr\n");
@@ -284,41 +284,28 @@ static int bmg160_setup_any_motion_interrupt(struct bmg160_data *data,
int ret;
/* Enable/Disable INT_MAP0 mapping */
- ret = i2c_smbus_read_byte_data(data->client, BMG160_REG_INT_MAP_0);
- if (ret < 0) {
- dev_err(&data->client->dev, "Error reading reg_int_map0\n");
- return ret;
- }
- if (status)
- ret |= BMG160_INT_MAP_0_BIT_ANY;
- else
- ret &= ~BMG160_INT_MAP_0_BIT_ANY;
-
- ret = i2c_smbus_write_byte_data(data->client,
- BMG160_REG_INT_MAP_0,
- ret);
+ ret = regmap_update_bits(data->regmap, BMG160_REG_INT_MAP_0,
+ BMG160_INT_MAP_0_BIT_ANY,
+ (status ? BMG160_INT_MAP_0_BIT_ANY : 0));
if (ret < 0) {
- dev_err(&data->client->dev, "Error writing reg_int_map0\n");
+ dev_err(&data->client->dev, "Error updating bits reg_int_map0\n");
return ret;
}
/* Enable/Disable slope interrupts */
if (status) {
/* Update slope thres */
- ret = i2c_smbus_write_byte_data(data->client,
- BMG160_REG_SLOPE_THRES,
- data->slope_thres);
+ ret = regmap_write(data->regmap, BMG160_REG_SLOPE_THRES,
+ data->slope_thres);
if (ret < 0) {
dev_err(&data->client->dev,
"Error writing reg_slope_thres\n");
return ret;
}
- ret = i2c_smbus_write_byte_data(data->client,
- BMG160_REG_MOTION_INTR,
- BMG160_INT_MOTION_X |
- BMG160_INT_MOTION_Y |
- BMG160_INT_MOTION_Z);
+ ret = regmap_write(data->regmap, BMG160_REG_MOTION_INTR,
+ BMG160_INT_MOTION_X | BMG160_INT_MOTION_Y |
+ BMG160_INT_MOTION_Z);
if (ret < 0) {
dev_err(&data->client->dev,
"Error writing reg_motion_intr\n");
@@ -331,10 +318,10 @@ static int bmg160_setup_any_motion_interrupt(struct bmg160_data *data,
* to set latched mode, we will be flooded anyway with INTR
*/
if (!data->dready_trigger_on) {
- ret = i2c_smbus_write_byte_data(data->client,
- BMG160_REG_INT_RST_LATCH,
- BMG160_INT_MODE_LATCH_INT |
- BMG160_INT_MODE_LATCH_RESET);
+ ret = regmap_write(data->regmap,
+ BMG160_REG_INT_RST_LATCH,
+ BMG160_INT_MODE_LATCH_INT |
+ BMG160_INT_MODE_LATCH_RESET);
if (ret < 0) {
dev_err(&data->client->dev,
"Error writing reg_rst_latch\n");
@@ -342,14 +329,12 @@ static int bmg160_setup_any_motion_interrupt(struct bmg160_data *data,
}
}
- ret = i2c_smbus_write_byte_data(data->client,
- BMG160_REG_INT_EN_0,
- BMG160_DATA_ENABLE_INT);
+ ret = regmap_write(data->regmap, BMG160_REG_INT_EN_0,
+ BMG160_DATA_ENABLE_INT);
- } else
- ret = i2c_smbus_write_byte_data(data->client,
- BMG160_REG_INT_EN_0,
- 0);
+ } else {
+ ret = regmap_write(data->regmap, BMG160_REG_INT_EN_0, 0);
+ }
if (ret < 0) {
dev_err(&data->client->dev, "Error writing reg_int_en0\n");
@@ -365,55 +350,39 @@ static int bmg160_setup_new_data_interrupt(struct bmg160_data *data,
int ret;
/* Enable/Disable INT_MAP1 mapping */
- ret = i2c_smbus_read_byte_data(data->client, BMG160_REG_INT_MAP_1);
- if (ret < 0) {
- dev_err(&data->client->dev, "Error reading reg_int_map1\n");
- return ret;
- }
-
- if (status)
- ret |= BMG160_INT_MAP_1_BIT_NEW_DATA;
- else
- ret &= ~BMG160_INT_MAP_1_BIT_NEW_DATA;
-
- ret = i2c_smbus_write_byte_data(data->client,
- BMG160_REG_INT_MAP_1,
- ret);
+ ret = regmap_update_bits(data->regmap, BMG160_REG_INT_MAP_1,
+ BMG160_INT_MAP_1_BIT_NEW_DATA,
+ (status ? BMG160_INT_MAP_1_BIT_NEW_DATA : 0));
if (ret < 0) {
- dev_err(&data->client->dev, "Error writing reg_int_map1\n");
+ dev_err(&data->client->dev, "Error updating bits in reg_int_map1\n");
return ret;
}
if (status) {
- ret = i2c_smbus_write_byte_data(data->client,
- BMG160_REG_INT_RST_LATCH,
- BMG160_INT_MODE_NON_LATCH_INT |
- BMG160_INT_MODE_LATCH_RESET);
+ ret = regmap_write(data->regmap, BMG160_REG_INT_RST_LATCH,
+ BMG160_INT_MODE_NON_LATCH_INT |
+ BMG160_INT_MODE_LATCH_RESET);
if (ret < 0) {
dev_err(&data->client->dev,
"Error writing reg_rst_latch\n");
return ret;
}
- ret = i2c_smbus_write_byte_data(data->client,
- BMG160_REG_INT_EN_0,
- BMG160_DATA_ENABLE_INT);
+ ret = regmap_write(data->regmap, BMG160_REG_INT_EN_0,
+ BMG160_DATA_ENABLE_INT);
} else {
/* Restore interrupt mode */
- ret = i2c_smbus_write_byte_data(data->client,
- BMG160_REG_INT_RST_LATCH,
- BMG160_INT_MODE_LATCH_INT |
- BMG160_INT_MODE_LATCH_RESET);
+ ret = regmap_write(data->regmap, BMG160_REG_INT_RST_LATCH,
+ BMG160_INT_MODE_LATCH_INT |
+ BMG160_INT_MODE_LATCH_RESET);
if (ret < 0) {
dev_err(&data->client->dev,
"Error writing reg_rst_latch\n");
return ret;
}
- ret = i2c_smbus_write_byte_data(data->client,
- BMG160_REG_INT_EN_0,
- 0);
+ ret = regmap_write(data->regmap, BMG160_REG_INT_EN_0, 0);
}
if (ret < 0) {
@@ -444,10 +413,8 @@ static int bmg160_set_scale(struct bmg160_data *data, int val)
for (i = 0; i < ARRAY_SIZE(bmg160_scale_table); ++i) {
if (bmg160_scale_table[i].scale == val) {
- ret = i2c_smbus_write_byte_data(
- data->client,
- BMG160_REG_RANGE,
- bmg160_scale_table[i].dps_range);
+ ret = regmap_write(data->regmap, BMG160_REG_RANGE,
+ bmg160_scale_table[i].dps_range);
if (ret < 0) {
dev_err(&data->client->dev,
"Error writing reg_range\n");
@@ -464,6 +431,7 @@ static int bmg160_set_scale(struct bmg160_data *data, int val)
static int bmg160_get_temp(struct bmg160_data *data, int *val)
{
int ret;
+ unsigned int raw_val;
mutex_lock(&data->mutex);
ret = bmg160_set_power_state(data, true);
@@ -472,7 +440,7 @@ static int bmg160_get_temp(struct bmg160_data *data, int *val)
return ret;
}
- ret = i2c_smbus_read_byte_data(data->client, BMG160_REG_TEMP);
+ ret = regmap_read(data->regmap, BMG160_REG_TEMP, &raw_val);
if (ret < 0) {
dev_err(&data->client->dev, "Error reading reg_temp\n");
bmg160_set_power_state(data, false);
@@ -480,7 +448,7 @@ static int bmg160_get_temp(struct bmg160_data *data, int *val)
return ret;
}
- *val = sign_extend32(ret, 7);
+ *val = sign_extend32(raw_val, 7);
ret = bmg160_set_power_state(data, false);
mutex_unlock(&data->mutex);
if (ret < 0)
@@ -492,6 +460,7 @@ static int bmg160_get_temp(struct bmg160_data *data, int *val)
static int bmg160_get_axis(struct bmg160_data *data, int axis, int *val)
{
int ret;
+ unsigned int raw_val;
mutex_lock(&data->mutex);
ret = bmg160_set_power_state(data, true);
@@ -500,7 +469,8 @@ static int bmg160_get_axis(struct bmg160_data *data, int axis, int *val)
return ret;
}
- ret = i2c_smbus_read_word_data(data->client, BMG160_AXIS_TO_REG(axis));
+ ret = regmap_bulk_read(data->regmap, BMG160_AXIS_TO_REG(axis), &raw_val,
+ 2);
if (ret < 0) {
dev_err(&data->client->dev, "Error reading axis %d\n", axis);
bmg160_set_power_state(data, false);
@@ -508,7 +478,7 @@ static int bmg160_get_axis(struct bmg160_data *data, int axis, int *val)
return ret;
}
- *val = sign_extend32(ret, 15);
+ *val = sign_extend32(raw_val, 15);
ret = bmg160_set_power_state(data, false);
mutex_unlock(&data->mutex);
if (ret < 0)
@@ -807,12 +777,13 @@ static irqreturn_t bmg160_trigger_handler(int irq, void *p)
struct iio_dev *indio_dev = pf->indio_dev;
struct bmg160_data *data = iio_priv(indio_dev);
int bit, ret, i = 0;
+ unsigned int val;
mutex_lock(&data->mutex);
for_each_set_bit(bit, indio_dev->active_scan_mask,
indio_dev->masklength) {
- ret = i2c_smbus_read_word_data(data->client,
- BMG160_AXIS_TO_REG(bit));
+ ret = regmap_bulk_read(data->regmap, BMG160_AXIS_TO_REG(bit),
+ &val, 2);
if (ret < 0) {
mutex_unlock(&data->mutex);
goto err;
@@ -840,10 +811,9 @@ static int bmg160_trig_try_reen(struct iio_trigger *trig)
return 0;
/* Set latched mode interrupt and clear any latched interrupt */
- ret = i2c_smbus_write_byte_data(data->client,
- BMG160_REG_INT_RST_LATCH,
- BMG160_INT_MODE_LATCH_INT |
- BMG160_INT_MODE_LATCH_RESET);
+ ret = regmap_write(data->regmap, BMG160_REG_INT_RST_LATCH,
+ BMG160_INT_MODE_LATCH_INT |
+ BMG160_INT_MODE_LATCH_RESET);
if (ret < 0) {
dev_err(&data->client->dev, "Error writing reg_rst_latch\n");
return ret;
@@ -907,33 +877,34 @@ static irqreturn_t bmg160_event_handler(int irq, void *private)
struct bmg160_data *data = iio_priv(indio_dev);
int ret;
int dir;
+ unsigned int val;
- ret = i2c_smbus_read_byte_data(data->client, BMG160_REG_INT_STATUS_2);
+ ret = regmap_read(data->regmap, BMG160_REG_INT_STATUS_2, &val);
if (ret < 0) {
dev_err(&data->client->dev, "Error reading reg_int_status2\n");
goto ack_intr_status;
}
- if (ret & 0x08)
+ if (val & 0x08)
dir = IIO_EV_DIR_RISING;
else
dir = IIO_EV_DIR_FALLING;
- if (ret & BMG160_ANY_MOTION_BIT_X)
+ if (val & BMG160_ANY_MOTION_BIT_X)
iio_push_event(indio_dev, IIO_MOD_EVENT_CODE(IIO_ANGL_VEL,
0,
IIO_MOD_X,
IIO_EV_TYPE_ROC,
dir),
iio_get_time_ns());
- if (ret & BMG160_ANY_MOTION_BIT_Y)
+ if (val & BMG160_ANY_MOTION_BIT_Y)
iio_push_event(indio_dev, IIO_MOD_EVENT_CODE(IIO_ANGL_VEL,
0,
IIO_MOD_Y,
IIO_EV_TYPE_ROC,
dir),
iio_get_time_ns());
- if (ret & BMG160_ANY_MOTION_BIT_Z)
+ if (val & BMG160_ANY_MOTION_BIT_Z)
iio_push_event(indio_dev, IIO_MOD_EVENT_CODE(IIO_ANGL_VEL,
0,
IIO_MOD_Z,
@@ -943,10 +914,9 @@ static irqreturn_t bmg160_event_handler(int irq, void *private)
ack_intr_status:
if (!data->dready_trigger_on) {
- ret = i2c_smbus_write_byte_data(data->client,
- BMG160_REG_INT_RST_LATCH,
- BMG160_INT_MODE_LATCH_INT |
- BMG160_INT_MODE_LATCH_RESET);
+ ret = regmap_write(data->regmap, BMG160_REG_INT_RST_LATCH,
+ BMG160_INT_MODE_LATCH_INT |
+ BMG160_INT_MODE_LATCH_RESET);
if (ret < 0)
dev_err(&data->client->dev,
"Error writing reg_rst_latch\n");
@@ -1038,6 +1008,14 @@ static int bmg160_probe(struct i2c_client *client,
struct iio_dev *indio_dev;
int ret;
const char *name = NULL;
+ struct regmap *regmap;
+
+ regmap = devm_regmap_init_i2c(client, &bmg160_regmap_i2c_conf);
+ if (IS_ERR(regmap)) {
+ dev_err(&client->dev, "Failed to register i2c regmap %d\n",
+ (int)PTR_ERR(regmap));
+ return PTR_ERR(regmap);
+ }
indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*data));
if (!indio_dev)
--
2.1.4
^ permalink raw reply related [flat|nested] 12+ messages in thread
* Re: [PATCH v2 1/6] iio: bmg160: Use i2c regmap instead of direct i2c access
2015-08-04 11:02 ` [PATCH v2 1/6] iio: bmg160: Use i2c regmap instead of direct i2c access Markus Pargmann
@ 2015-08-09 6:47 ` Markus Pargmann
0 siblings, 0 replies; 12+ messages in thread
From: Markus Pargmann @ 2015-08-09 6:47 UTC (permalink / raw)
To: Jonathan Cameron
Cc: Vlad Dogaru, Paul Bolle, linux-iio, linux-kernel, kernel,
Srinivas Pandruvada
[-- Attachment #1: Type: text/plain, Size: 17144 bytes --]
On Tue, Aug 04, 2015 at 01:02:54PM +0200, Markus Pargmann wrote:
> This patch introduces regmap usage into the driver. This is done to
> later easily support the SPI interface of this chip.
>
> Signed-off-by: Markus Pargmann <mpa@pengutronix.de>
> ---
> drivers/iio/gyro/Kconfig | 2 +
> drivers/iio/gyro/bmg160.c | 200 +++++++++++++++++++++-------------------------
> 2 files changed, 91 insertions(+), 111 deletions(-)
>
> diff --git a/drivers/iio/gyro/Kconfig b/drivers/iio/gyro/Kconfig
> index 8d2439345673..b44984b3bb24 100644
> --- a/drivers/iio/gyro/Kconfig
> +++ b/drivers/iio/gyro/Kconfig
> @@ -55,6 +55,8 @@ config BMG160
> depends on I2C
> select IIO_BUFFER
> select IIO_TRIGGERED_BUFFER
> + select REGMAP
> + select REGMAP_I2C
> help
> Say yes here to build support for Bosch BMG160 Tri-axis Gyro Sensor
> driver. This driver also supports BMI055 gyroscope.
> diff --git a/drivers/iio/gyro/bmg160.c b/drivers/iio/gyro/bmg160.c
> index 460bf715d541..626f5c98dde8 100644
> --- a/drivers/iio/gyro/bmg160.c
> +++ b/drivers/iio/gyro/bmg160.c
> @@ -28,6 +28,7 @@
> #include <linux/iio/events.h>
> #include <linux/iio/trigger_consumer.h>
> #include <linux/iio/triggered_buffer.h>
> +#include <linux/regmap.h>
>
> #define BMG160_DRV_NAME "bmg160"
> #define BMG160_IRQ_NAME "bmg160_event"
> @@ -98,6 +99,7 @@
>
> struct bmg160_data {
> struct i2c_client *client;
> + struct regmap *regmap;
> struct iio_trigger *dready_trig;
> struct iio_trigger *motion_trig;
> struct mutex mutex;
> @@ -134,12 +136,19 @@ static const struct {
> { 133, BMG160_RANGE_250DPS},
> { 66, BMG160_RANGE_125DPS} };
>
> +struct regmap_config bmg160_regmap_i2c_conf = {
> + .reg_bits = 8,
> + .val_bits = 8,
> +
> + .use_single_rw = true,
This should not be necessary, we should be able to read multiple
registers at once. This is the same for the spi regmap config.
Also a max_register is missing. Will fix it.
Regards,
Markus
> + .cache_type = REGCACHE_NONE,
> +};
> +
> static int bmg160_set_mode(struct bmg160_data *data, u8 mode)
> {
> int ret;
>
> - ret = i2c_smbus_write_byte_data(data->client,
> - BMG160_REG_PMU_LPW, mode);
> + ret = regmap_write(data->regmap, BMG160_REG_PMU_LPW, mode);
> if (ret < 0) {
> dev_err(&data->client->dev, "Error writing reg_pmu_lpw\n");
> return ret;
> @@ -169,8 +178,7 @@ static int bmg160_set_bw(struct bmg160_data *data, int val)
> if (bw_bits < 0)
> return bw_bits;
>
> - ret = i2c_smbus_write_byte_data(data->client, BMG160_REG_PMU_BW,
> - bw_bits);
> + ret = regmap_write(data->regmap, BMG160_REG_PMU_BW, bw_bits);
> if (ret < 0) {
> dev_err(&data->client->dev, "Error writing reg_pmu_bw\n");
> return ret;
> @@ -184,16 +192,17 @@ static int bmg160_set_bw(struct bmg160_data *data, int val)
> static int bmg160_chip_init(struct bmg160_data *data)
> {
> int ret;
> + unsigned int val;
>
> - ret = i2c_smbus_read_byte_data(data->client, BMG160_REG_CHIP_ID);
> + ret = regmap_read(data->regmap, BMG160_REG_CHIP_ID, &val);
> if (ret < 0) {
> dev_err(&data->client->dev, "Error reading reg_chip_id\n");
> return ret;
> }
>
> - dev_dbg(&data->client->dev, "Chip Id %x\n", ret);
> - if (ret != BMG160_CHIP_ID_VAL) {
> - dev_err(&data->client->dev, "invalid chip %x\n", ret);
> + dev_dbg(&data->client->dev, "Chip Id %x\n", val);
> + if (val != BMG160_CHIP_ID_VAL) {
> + dev_err(&data->client->dev, "invalid chip %x\n", val);
> return -ENODEV;
> }
>
> @@ -210,40 +219,31 @@ static int bmg160_chip_init(struct bmg160_data *data)
> return ret;
>
> /* Set Default Range */
> - ret = i2c_smbus_write_byte_data(data->client,
> - BMG160_REG_RANGE,
> - BMG160_RANGE_500DPS);
> + ret = regmap_write(data->regmap, BMG160_REG_RANGE, BMG160_RANGE_500DPS);
> if (ret < 0) {
> dev_err(&data->client->dev, "Error writing reg_range\n");
> return ret;
> }
> data->dps_range = BMG160_RANGE_500DPS;
>
> - ret = i2c_smbus_read_byte_data(data->client, BMG160_REG_SLOPE_THRES);
> + ret = regmap_read(data->regmap, BMG160_REG_SLOPE_THRES, &val);
> if (ret < 0) {
> dev_err(&data->client->dev, "Error reading reg_slope_thres\n");
> return ret;
> }
> - data->slope_thres = ret;
> + data->slope_thres = val;
>
> /* Set default interrupt mode */
> - ret = i2c_smbus_read_byte_data(data->client, BMG160_REG_INT_EN_1);
> - if (ret < 0) {
> - dev_err(&data->client->dev, "Error reading reg_int_en_1\n");
> - return ret;
> - }
> - ret &= ~BMG160_INT1_BIT_OD;
> - ret = i2c_smbus_write_byte_data(data->client,
> - BMG160_REG_INT_EN_1, ret);
> + ret = regmap_update_bits(data->regmap, BMG160_REG_INT_EN_1,
> + BMG160_INT1_BIT_OD, 0);
> if (ret < 0) {
> - dev_err(&data->client->dev, "Error writing reg_int_en_1\n");
> + dev_err(&data->client->dev, "Error updating bits in reg_int_en_1\n");
> return ret;
> }
>
> - ret = i2c_smbus_write_byte_data(data->client,
> - BMG160_REG_INT_RST_LATCH,
> - BMG160_INT_MODE_LATCH_INT |
> - BMG160_INT_MODE_LATCH_RESET);
> + ret = regmap_write(data->regmap, BMG160_REG_INT_RST_LATCH,
> + BMG160_INT_MODE_LATCH_INT |
> + BMG160_INT_MODE_LATCH_RESET);
> if (ret < 0) {
> dev_err(&data->client->dev,
> "Error writing reg_motion_intr\n");
> @@ -284,41 +284,28 @@ static int bmg160_setup_any_motion_interrupt(struct bmg160_data *data,
> int ret;
>
> /* Enable/Disable INT_MAP0 mapping */
> - ret = i2c_smbus_read_byte_data(data->client, BMG160_REG_INT_MAP_0);
> - if (ret < 0) {
> - dev_err(&data->client->dev, "Error reading reg_int_map0\n");
> - return ret;
> - }
> - if (status)
> - ret |= BMG160_INT_MAP_0_BIT_ANY;
> - else
> - ret &= ~BMG160_INT_MAP_0_BIT_ANY;
> -
> - ret = i2c_smbus_write_byte_data(data->client,
> - BMG160_REG_INT_MAP_0,
> - ret);
> + ret = regmap_update_bits(data->regmap, BMG160_REG_INT_MAP_0,
> + BMG160_INT_MAP_0_BIT_ANY,
> + (status ? BMG160_INT_MAP_0_BIT_ANY : 0));
> if (ret < 0) {
> - dev_err(&data->client->dev, "Error writing reg_int_map0\n");
> + dev_err(&data->client->dev, "Error updating bits reg_int_map0\n");
> return ret;
> }
>
> /* Enable/Disable slope interrupts */
> if (status) {
> /* Update slope thres */
> - ret = i2c_smbus_write_byte_data(data->client,
> - BMG160_REG_SLOPE_THRES,
> - data->slope_thres);
> + ret = regmap_write(data->regmap, BMG160_REG_SLOPE_THRES,
> + data->slope_thres);
> if (ret < 0) {
> dev_err(&data->client->dev,
> "Error writing reg_slope_thres\n");
> return ret;
> }
>
> - ret = i2c_smbus_write_byte_data(data->client,
> - BMG160_REG_MOTION_INTR,
> - BMG160_INT_MOTION_X |
> - BMG160_INT_MOTION_Y |
> - BMG160_INT_MOTION_Z);
> + ret = regmap_write(data->regmap, BMG160_REG_MOTION_INTR,
> + BMG160_INT_MOTION_X | BMG160_INT_MOTION_Y |
> + BMG160_INT_MOTION_Z);
> if (ret < 0) {
> dev_err(&data->client->dev,
> "Error writing reg_motion_intr\n");
> @@ -331,10 +318,10 @@ static int bmg160_setup_any_motion_interrupt(struct bmg160_data *data,
> * to set latched mode, we will be flooded anyway with INTR
> */
> if (!data->dready_trigger_on) {
> - ret = i2c_smbus_write_byte_data(data->client,
> - BMG160_REG_INT_RST_LATCH,
> - BMG160_INT_MODE_LATCH_INT |
> - BMG160_INT_MODE_LATCH_RESET);
> + ret = regmap_write(data->regmap,
> + BMG160_REG_INT_RST_LATCH,
> + BMG160_INT_MODE_LATCH_INT |
> + BMG160_INT_MODE_LATCH_RESET);
> if (ret < 0) {
> dev_err(&data->client->dev,
> "Error writing reg_rst_latch\n");
> @@ -342,14 +329,12 @@ static int bmg160_setup_any_motion_interrupt(struct bmg160_data *data,
> }
> }
>
> - ret = i2c_smbus_write_byte_data(data->client,
> - BMG160_REG_INT_EN_0,
> - BMG160_DATA_ENABLE_INT);
> + ret = regmap_write(data->regmap, BMG160_REG_INT_EN_0,
> + BMG160_DATA_ENABLE_INT);
>
> - } else
> - ret = i2c_smbus_write_byte_data(data->client,
> - BMG160_REG_INT_EN_0,
> - 0);
> + } else {
> + ret = regmap_write(data->regmap, BMG160_REG_INT_EN_0, 0);
> + }
>
> if (ret < 0) {
> dev_err(&data->client->dev, "Error writing reg_int_en0\n");
> @@ -365,55 +350,39 @@ static int bmg160_setup_new_data_interrupt(struct bmg160_data *data,
> int ret;
>
> /* Enable/Disable INT_MAP1 mapping */
> - ret = i2c_smbus_read_byte_data(data->client, BMG160_REG_INT_MAP_1);
> - if (ret < 0) {
> - dev_err(&data->client->dev, "Error reading reg_int_map1\n");
> - return ret;
> - }
> -
> - if (status)
> - ret |= BMG160_INT_MAP_1_BIT_NEW_DATA;
> - else
> - ret &= ~BMG160_INT_MAP_1_BIT_NEW_DATA;
> -
> - ret = i2c_smbus_write_byte_data(data->client,
> - BMG160_REG_INT_MAP_1,
> - ret);
> + ret = regmap_update_bits(data->regmap, BMG160_REG_INT_MAP_1,
> + BMG160_INT_MAP_1_BIT_NEW_DATA,
> + (status ? BMG160_INT_MAP_1_BIT_NEW_DATA : 0));
> if (ret < 0) {
> - dev_err(&data->client->dev, "Error writing reg_int_map1\n");
> + dev_err(&data->client->dev, "Error updating bits in reg_int_map1\n");
> return ret;
> }
>
> if (status) {
> - ret = i2c_smbus_write_byte_data(data->client,
> - BMG160_REG_INT_RST_LATCH,
> - BMG160_INT_MODE_NON_LATCH_INT |
> - BMG160_INT_MODE_LATCH_RESET);
> + ret = regmap_write(data->regmap, BMG160_REG_INT_RST_LATCH,
> + BMG160_INT_MODE_NON_LATCH_INT |
> + BMG160_INT_MODE_LATCH_RESET);
> if (ret < 0) {
> dev_err(&data->client->dev,
> "Error writing reg_rst_latch\n");
> return ret;
> }
>
> - ret = i2c_smbus_write_byte_data(data->client,
> - BMG160_REG_INT_EN_0,
> - BMG160_DATA_ENABLE_INT);
> + ret = regmap_write(data->regmap, BMG160_REG_INT_EN_0,
> + BMG160_DATA_ENABLE_INT);
>
> } else {
> /* Restore interrupt mode */
> - ret = i2c_smbus_write_byte_data(data->client,
> - BMG160_REG_INT_RST_LATCH,
> - BMG160_INT_MODE_LATCH_INT |
> - BMG160_INT_MODE_LATCH_RESET);
> + ret = regmap_write(data->regmap, BMG160_REG_INT_RST_LATCH,
> + BMG160_INT_MODE_LATCH_INT |
> + BMG160_INT_MODE_LATCH_RESET);
> if (ret < 0) {
> dev_err(&data->client->dev,
> "Error writing reg_rst_latch\n");
> return ret;
> }
>
> - ret = i2c_smbus_write_byte_data(data->client,
> - BMG160_REG_INT_EN_0,
> - 0);
> + ret = regmap_write(data->regmap, BMG160_REG_INT_EN_0, 0);
> }
>
> if (ret < 0) {
> @@ -444,10 +413,8 @@ static int bmg160_set_scale(struct bmg160_data *data, int val)
>
> for (i = 0; i < ARRAY_SIZE(bmg160_scale_table); ++i) {
> if (bmg160_scale_table[i].scale == val) {
> - ret = i2c_smbus_write_byte_data(
> - data->client,
> - BMG160_REG_RANGE,
> - bmg160_scale_table[i].dps_range);
> + ret = regmap_write(data->regmap, BMG160_REG_RANGE,
> + bmg160_scale_table[i].dps_range);
> if (ret < 0) {
> dev_err(&data->client->dev,
> "Error writing reg_range\n");
> @@ -464,6 +431,7 @@ static int bmg160_set_scale(struct bmg160_data *data, int val)
> static int bmg160_get_temp(struct bmg160_data *data, int *val)
> {
> int ret;
> + unsigned int raw_val;
>
> mutex_lock(&data->mutex);
> ret = bmg160_set_power_state(data, true);
> @@ -472,7 +440,7 @@ static int bmg160_get_temp(struct bmg160_data *data, int *val)
> return ret;
> }
>
> - ret = i2c_smbus_read_byte_data(data->client, BMG160_REG_TEMP);
> + ret = regmap_read(data->regmap, BMG160_REG_TEMP, &raw_val);
> if (ret < 0) {
> dev_err(&data->client->dev, "Error reading reg_temp\n");
> bmg160_set_power_state(data, false);
> @@ -480,7 +448,7 @@ static int bmg160_get_temp(struct bmg160_data *data, int *val)
> return ret;
> }
>
> - *val = sign_extend32(ret, 7);
> + *val = sign_extend32(raw_val, 7);
> ret = bmg160_set_power_state(data, false);
> mutex_unlock(&data->mutex);
> if (ret < 0)
> @@ -492,6 +460,7 @@ static int bmg160_get_temp(struct bmg160_data *data, int *val)
> static int bmg160_get_axis(struct bmg160_data *data, int axis, int *val)
> {
> int ret;
> + unsigned int raw_val;
>
> mutex_lock(&data->mutex);
> ret = bmg160_set_power_state(data, true);
> @@ -500,7 +469,8 @@ static int bmg160_get_axis(struct bmg160_data *data, int axis, int *val)
> return ret;
> }
>
> - ret = i2c_smbus_read_word_data(data->client, BMG160_AXIS_TO_REG(axis));
> + ret = regmap_bulk_read(data->regmap, BMG160_AXIS_TO_REG(axis), &raw_val,
> + 2);
> if (ret < 0) {
> dev_err(&data->client->dev, "Error reading axis %d\n", axis);
> bmg160_set_power_state(data, false);
> @@ -508,7 +478,7 @@ static int bmg160_get_axis(struct bmg160_data *data, int axis, int *val)
> return ret;
> }
>
> - *val = sign_extend32(ret, 15);
> + *val = sign_extend32(raw_val, 15);
> ret = bmg160_set_power_state(data, false);
> mutex_unlock(&data->mutex);
> if (ret < 0)
> @@ -807,12 +777,13 @@ static irqreturn_t bmg160_trigger_handler(int irq, void *p)
> struct iio_dev *indio_dev = pf->indio_dev;
> struct bmg160_data *data = iio_priv(indio_dev);
> int bit, ret, i = 0;
> + unsigned int val;
>
> mutex_lock(&data->mutex);
> for_each_set_bit(bit, indio_dev->active_scan_mask,
> indio_dev->masklength) {
> - ret = i2c_smbus_read_word_data(data->client,
> - BMG160_AXIS_TO_REG(bit));
> + ret = regmap_bulk_read(data->regmap, BMG160_AXIS_TO_REG(bit),
> + &val, 2);
> if (ret < 0) {
> mutex_unlock(&data->mutex);
> goto err;
> @@ -840,10 +811,9 @@ static int bmg160_trig_try_reen(struct iio_trigger *trig)
> return 0;
>
> /* Set latched mode interrupt and clear any latched interrupt */
> - ret = i2c_smbus_write_byte_data(data->client,
> - BMG160_REG_INT_RST_LATCH,
> - BMG160_INT_MODE_LATCH_INT |
> - BMG160_INT_MODE_LATCH_RESET);
> + ret = regmap_write(data->regmap, BMG160_REG_INT_RST_LATCH,
> + BMG160_INT_MODE_LATCH_INT |
> + BMG160_INT_MODE_LATCH_RESET);
> if (ret < 0) {
> dev_err(&data->client->dev, "Error writing reg_rst_latch\n");
> return ret;
> @@ -907,33 +877,34 @@ static irqreturn_t bmg160_event_handler(int irq, void *private)
> struct bmg160_data *data = iio_priv(indio_dev);
> int ret;
> int dir;
> + unsigned int val;
>
> - ret = i2c_smbus_read_byte_data(data->client, BMG160_REG_INT_STATUS_2);
> + ret = regmap_read(data->regmap, BMG160_REG_INT_STATUS_2, &val);
> if (ret < 0) {
> dev_err(&data->client->dev, "Error reading reg_int_status2\n");
> goto ack_intr_status;
> }
>
> - if (ret & 0x08)
> + if (val & 0x08)
> dir = IIO_EV_DIR_RISING;
> else
> dir = IIO_EV_DIR_FALLING;
>
> - if (ret & BMG160_ANY_MOTION_BIT_X)
> + if (val & BMG160_ANY_MOTION_BIT_X)
> iio_push_event(indio_dev, IIO_MOD_EVENT_CODE(IIO_ANGL_VEL,
> 0,
> IIO_MOD_X,
> IIO_EV_TYPE_ROC,
> dir),
> iio_get_time_ns());
> - if (ret & BMG160_ANY_MOTION_BIT_Y)
> + if (val & BMG160_ANY_MOTION_BIT_Y)
> iio_push_event(indio_dev, IIO_MOD_EVENT_CODE(IIO_ANGL_VEL,
> 0,
> IIO_MOD_Y,
> IIO_EV_TYPE_ROC,
> dir),
> iio_get_time_ns());
> - if (ret & BMG160_ANY_MOTION_BIT_Z)
> + if (val & BMG160_ANY_MOTION_BIT_Z)
> iio_push_event(indio_dev, IIO_MOD_EVENT_CODE(IIO_ANGL_VEL,
> 0,
> IIO_MOD_Z,
> @@ -943,10 +914,9 @@ static irqreturn_t bmg160_event_handler(int irq, void *private)
>
> ack_intr_status:
> if (!data->dready_trigger_on) {
> - ret = i2c_smbus_write_byte_data(data->client,
> - BMG160_REG_INT_RST_LATCH,
> - BMG160_INT_MODE_LATCH_INT |
> - BMG160_INT_MODE_LATCH_RESET);
> + ret = regmap_write(data->regmap, BMG160_REG_INT_RST_LATCH,
> + BMG160_INT_MODE_LATCH_INT |
> + BMG160_INT_MODE_LATCH_RESET);
> if (ret < 0)
> dev_err(&data->client->dev,
> "Error writing reg_rst_latch\n");
> @@ -1038,6 +1008,14 @@ static int bmg160_probe(struct i2c_client *client,
> struct iio_dev *indio_dev;
> int ret;
> const char *name = NULL;
> + struct regmap *regmap;
> +
> + regmap = devm_regmap_init_i2c(client, &bmg160_regmap_i2c_conf);
> + if (IS_ERR(regmap)) {
> + dev_err(&client->dev, "Failed to register i2c regmap %d\n",
> + (int)PTR_ERR(regmap));
> + return PTR_ERR(regmap);
> + }
>
> indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*data));
> if (!indio_dev)
> --
> 2.1.4
>
>
>
--
Pengutronix e.K. | |
Industrial Linux Solutions | http://www.pengutronix.de/ |
Peiner Str. 6-8, 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 |
Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 |
[-- Attachment #2: Digital signature --]
[-- Type: application/pgp-signature, Size: 819 bytes --]
^ permalink raw reply [flat|nested] 12+ messages in thread
* [PATCH v2 2/6] iio: bmg160: Remove i2c_client from data struct
2015-08-04 11:02 [PATCH v2 0/6] iio: bmg160: Add SPI connection Markus Pargmann
2015-08-04 11:02 ` [PATCH v2 1/6] iio: bmg160: Use i2c regmap instead of direct i2c access Markus Pargmann
@ 2015-08-04 11:02 ` Markus Pargmann
2015-08-04 11:02 ` [PATCH v2 3/6] iio: bmg160: Use generic dev_drvdata Markus Pargmann
` (4 subsequent siblings)
6 siblings, 0 replies; 12+ messages in thread
From: Markus Pargmann @ 2015-08-04 11:02 UTC (permalink / raw)
To: Jonathan Cameron
Cc: Srinivas Pandruvada, Vlad Dogaru, Paul Bolle, linux-iio,
linux-kernel, kernel, Markus Pargmann
i2c_client variable is not really used anymore in the core driver. It is
only used to get the device to make proper outputs.
This patch replaces all i2c_client usage through direct usage of the
device pointer.
Signed-off-by: Markus Pargmann <mpa@pengutronix.de>
---
drivers/iio/gyro/bmg160.c | 64 +++++++++++++++++++++++------------------------
1 file changed, 32 insertions(+), 32 deletions(-)
diff --git a/drivers/iio/gyro/bmg160.c b/drivers/iio/gyro/bmg160.c
index 626f5c98dde8..71c605ea85ad 100644
--- a/drivers/iio/gyro/bmg160.c
+++ b/drivers/iio/gyro/bmg160.c
@@ -98,7 +98,7 @@
#define BMG160_AUTO_SUSPEND_DELAY_MS 2000
struct bmg160_data {
- struct i2c_client *client;
+ struct device *dev;
struct regmap *regmap;
struct iio_trigger *dready_trig;
struct iio_trigger *motion_trig;
@@ -150,7 +150,7 @@ static int bmg160_set_mode(struct bmg160_data *data, u8 mode)
ret = regmap_write(data->regmap, BMG160_REG_PMU_LPW, mode);
if (ret < 0) {
- dev_err(&data->client->dev, "Error writing reg_pmu_lpw\n");
+ dev_err(data->dev, "Error writing reg_pmu_lpw\n");
return ret;
}
@@ -180,7 +180,7 @@ static int bmg160_set_bw(struct bmg160_data *data, int val)
ret = regmap_write(data->regmap, BMG160_REG_PMU_BW, bw_bits);
if (ret < 0) {
- dev_err(&data->client->dev, "Error writing reg_pmu_bw\n");
+ dev_err(data->dev, "Error writing reg_pmu_bw\n");
return ret;
}
@@ -196,13 +196,13 @@ static int bmg160_chip_init(struct bmg160_data *data)
ret = regmap_read(data->regmap, BMG160_REG_CHIP_ID, &val);
if (ret < 0) {
- dev_err(&data->client->dev, "Error reading reg_chip_id\n");
+ dev_err(data->dev, "Error reading reg_chip_id\n");
return ret;
}
- dev_dbg(&data->client->dev, "Chip Id %x\n", val);
+ dev_dbg(data->dev, "Chip Id %x\n", val);
if (val != BMG160_CHIP_ID_VAL) {
- dev_err(&data->client->dev, "invalid chip %x\n", val);
+ dev_err(data->dev, "invalid chip %x\n", val);
return -ENODEV;
}
@@ -221,14 +221,14 @@ static int bmg160_chip_init(struct bmg160_data *data)
/* Set Default Range */
ret = regmap_write(data->regmap, BMG160_REG_RANGE, BMG160_RANGE_500DPS);
if (ret < 0) {
- dev_err(&data->client->dev, "Error writing reg_range\n");
+ dev_err(data->dev, "Error writing reg_range\n");
return ret;
}
data->dps_range = BMG160_RANGE_500DPS;
ret = regmap_read(data->regmap, BMG160_REG_SLOPE_THRES, &val);
if (ret < 0) {
- dev_err(&data->client->dev, "Error reading reg_slope_thres\n");
+ dev_err(data->dev, "Error reading reg_slope_thres\n");
return ret;
}
data->slope_thres = val;
@@ -237,7 +237,7 @@ static int bmg160_chip_init(struct bmg160_data *data)
ret = regmap_update_bits(data->regmap, BMG160_REG_INT_EN_1,
BMG160_INT1_BIT_OD, 0);
if (ret < 0) {
- dev_err(&data->client->dev, "Error updating bits in reg_int_en_1\n");
+ dev_err(data->dev, "Error updating bits in reg_int_en_1\n");
return ret;
}
@@ -245,7 +245,7 @@ static int bmg160_chip_init(struct bmg160_data *data)
BMG160_INT_MODE_LATCH_INT |
BMG160_INT_MODE_LATCH_RESET);
if (ret < 0) {
- dev_err(&data->client->dev,
+ dev_err(data->dev,
"Error writing reg_motion_intr\n");
return ret;
}
@@ -259,17 +259,17 @@ static int bmg160_set_power_state(struct bmg160_data *data, bool on)
int ret;
if (on)
- ret = pm_runtime_get_sync(&data->client->dev);
+ ret = pm_runtime_get_sync(data->dev);
else {
- pm_runtime_mark_last_busy(&data->client->dev);
- ret = pm_runtime_put_autosuspend(&data->client->dev);
+ pm_runtime_mark_last_busy(data->dev);
+ ret = pm_runtime_put_autosuspend(data->dev);
}
if (ret < 0) {
- dev_err(&data->client->dev,
+ dev_err(data->dev,
"Failed: bmg160_set_power_state for %d\n", on);
if (on)
- pm_runtime_put_noidle(&data->client->dev);
+ pm_runtime_put_noidle(data->dev);
return ret;
}
@@ -288,7 +288,7 @@ static int bmg160_setup_any_motion_interrupt(struct bmg160_data *data,
BMG160_INT_MAP_0_BIT_ANY,
(status ? BMG160_INT_MAP_0_BIT_ANY : 0));
if (ret < 0) {
- dev_err(&data->client->dev, "Error updating bits reg_int_map0\n");
+ dev_err(data->dev, "Error updating bits reg_int_map0\n");
return ret;
}
@@ -298,7 +298,7 @@ static int bmg160_setup_any_motion_interrupt(struct bmg160_data *data,
ret = regmap_write(data->regmap, BMG160_REG_SLOPE_THRES,
data->slope_thres);
if (ret < 0) {
- dev_err(&data->client->dev,
+ dev_err(data->dev,
"Error writing reg_slope_thres\n");
return ret;
}
@@ -307,7 +307,7 @@ static int bmg160_setup_any_motion_interrupt(struct bmg160_data *data,
BMG160_INT_MOTION_X | BMG160_INT_MOTION_Y |
BMG160_INT_MOTION_Z);
if (ret < 0) {
- dev_err(&data->client->dev,
+ dev_err(data->dev,
"Error writing reg_motion_intr\n");
return ret;
}
@@ -323,7 +323,7 @@ static int bmg160_setup_any_motion_interrupt(struct bmg160_data *data,
BMG160_INT_MODE_LATCH_INT |
BMG160_INT_MODE_LATCH_RESET);
if (ret < 0) {
- dev_err(&data->client->dev,
+ dev_err(data->dev,
"Error writing reg_rst_latch\n");
return ret;
}
@@ -337,7 +337,7 @@ static int bmg160_setup_any_motion_interrupt(struct bmg160_data *data,
}
if (ret < 0) {
- dev_err(&data->client->dev, "Error writing reg_int_en0\n");
+ dev_err(data->dev, "Error writing reg_int_en0\n");
return ret;
}
@@ -354,7 +354,7 @@ static int bmg160_setup_new_data_interrupt(struct bmg160_data *data,
BMG160_INT_MAP_1_BIT_NEW_DATA,
(status ? BMG160_INT_MAP_1_BIT_NEW_DATA : 0));
if (ret < 0) {
- dev_err(&data->client->dev, "Error updating bits in reg_int_map1\n");
+ dev_err(data->dev, "Error updating bits in reg_int_map1\n");
return ret;
}
@@ -363,7 +363,7 @@ static int bmg160_setup_new_data_interrupt(struct bmg160_data *data,
BMG160_INT_MODE_NON_LATCH_INT |
BMG160_INT_MODE_LATCH_RESET);
if (ret < 0) {
- dev_err(&data->client->dev,
+ dev_err(data->dev,
"Error writing reg_rst_latch\n");
return ret;
}
@@ -377,7 +377,7 @@ static int bmg160_setup_new_data_interrupt(struct bmg160_data *data,
BMG160_INT_MODE_LATCH_INT |
BMG160_INT_MODE_LATCH_RESET);
if (ret < 0) {
- dev_err(&data->client->dev,
+ dev_err(data->dev,
"Error writing reg_rst_latch\n");
return ret;
}
@@ -386,7 +386,7 @@ static int bmg160_setup_new_data_interrupt(struct bmg160_data *data,
}
if (ret < 0) {
- dev_err(&data->client->dev, "Error writing reg_int_en0\n");
+ dev_err(data->dev, "Error writing reg_int_en0\n");
return ret;
}
@@ -416,7 +416,7 @@ static int bmg160_set_scale(struct bmg160_data *data, int val)
ret = regmap_write(data->regmap, BMG160_REG_RANGE,
bmg160_scale_table[i].dps_range);
if (ret < 0) {
- dev_err(&data->client->dev,
+ dev_err(data->dev,
"Error writing reg_range\n");
return ret;
}
@@ -442,7 +442,7 @@ static int bmg160_get_temp(struct bmg160_data *data, int *val)
ret = regmap_read(data->regmap, BMG160_REG_TEMP, &raw_val);
if (ret < 0) {
- dev_err(&data->client->dev, "Error reading reg_temp\n");
+ dev_err(data->dev, "Error reading reg_temp\n");
bmg160_set_power_state(data, false);
mutex_unlock(&data->mutex);
return ret;
@@ -472,7 +472,7 @@ static int bmg160_get_axis(struct bmg160_data *data, int axis, int *val)
ret = regmap_bulk_read(data->regmap, BMG160_AXIS_TO_REG(axis), &raw_val,
2);
if (ret < 0) {
- dev_err(&data->client->dev, "Error reading axis %d\n", axis);
+ dev_err(data->dev, "Error reading axis %d\n", axis);
bmg160_set_power_state(data, false);
mutex_unlock(&data->mutex);
return ret;
@@ -815,7 +815,7 @@ static int bmg160_trig_try_reen(struct iio_trigger *trig)
BMG160_INT_MODE_LATCH_INT |
BMG160_INT_MODE_LATCH_RESET);
if (ret < 0) {
- dev_err(&data->client->dev, "Error writing reg_rst_latch\n");
+ dev_err(data->dev, "Error writing reg_rst_latch\n");
return ret;
}
@@ -881,7 +881,7 @@ static irqreturn_t bmg160_event_handler(int irq, void *private)
ret = regmap_read(data->regmap, BMG160_REG_INT_STATUS_2, &val);
if (ret < 0) {
- dev_err(&data->client->dev, "Error reading reg_int_status2\n");
+ dev_err(data->dev, "Error reading reg_int_status2\n");
goto ack_intr_status;
}
@@ -918,7 +918,7 @@ ack_intr_status:
BMG160_INT_MODE_LATCH_INT |
BMG160_INT_MODE_LATCH_RESET);
if (ret < 0)
- dev_err(&data->client->dev,
+ dev_err(data->dev,
"Error writing reg_rst_latch\n");
}
@@ -1023,7 +1023,7 @@ static int bmg160_probe(struct i2c_client *client,
data = iio_priv(indio_dev);
i2c_set_clientdata(client, indio_dev);
- data->client = client;
+ data->dev = &client->dev;
ret = bmg160_chip_init(data);
if (ret < 0)
@@ -1190,7 +1190,7 @@ static int bmg160_runtime_suspend(struct device *dev)
ret = bmg160_set_mode(data, BMG160_MODE_SUSPEND);
if (ret < 0) {
- dev_err(&data->client->dev, "set mode failed\n");
+ dev_err(data->dev, "set mode failed\n");
return -EAGAIN;
}
--
2.1.4
^ permalink raw reply related [flat|nested] 12+ messages in thread
* [PATCH v2 3/6] iio: bmg160: Use generic dev_drvdata
2015-08-04 11:02 [PATCH v2 0/6] iio: bmg160: Add SPI connection Markus Pargmann
2015-08-04 11:02 ` [PATCH v2 1/6] iio: bmg160: Use i2c regmap instead of direct i2c access Markus Pargmann
2015-08-04 11:02 ` [PATCH v2 2/6] iio: bmg160: Remove i2c_client from data struct Markus Pargmann
@ 2015-08-04 11:02 ` Markus Pargmann
2015-08-04 11:02 ` [PATCH v2 4/6] iio: bmg160: Remove remaining uses of i2c_client Markus Pargmann
` (3 subsequent siblings)
6 siblings, 0 replies; 12+ messages in thread
From: Markus Pargmann @ 2015-08-04 11:02 UTC (permalink / raw)
To: Jonathan Cameron
Cc: Srinivas Pandruvada, Vlad Dogaru, Paul Bolle, linux-iio,
linux-kernel, kernel, Markus Pargmann
i2c_get_clientdata() is specifically for i2c. Replace it with the
generic dev_get/set_drvdata() to support different protocols.
Signed-off-by: Markus Pargmann <mpa@pengutronix.de>
---
drivers/iio/gyro/bmg160.c | 10 +++++-----
1 file changed, 5 insertions(+), 5 deletions(-)
diff --git a/drivers/iio/gyro/bmg160.c b/drivers/iio/gyro/bmg160.c
index 71c605ea85ad..b47b7af19e32 100644
--- a/drivers/iio/gyro/bmg160.c
+++ b/drivers/iio/gyro/bmg160.c
@@ -1022,7 +1022,7 @@ static int bmg160_probe(struct i2c_client *client,
return -ENOMEM;
data = iio_priv(indio_dev);
- i2c_set_clientdata(client, indio_dev);
+ dev_set_drvdata(&client->dev, indio_dev);
data->dev = &client->dev;
ret = bmg160_chip_init(data);
@@ -1156,7 +1156,7 @@ static int bmg160_remove(struct i2c_client *client)
#ifdef CONFIG_PM_SLEEP
static int bmg160_suspend(struct device *dev)
{
- struct iio_dev *indio_dev = i2c_get_clientdata(to_i2c_client(dev));
+ struct iio_dev *indio_dev = dev_get_drvdata(dev);
struct bmg160_data *data = iio_priv(indio_dev);
mutex_lock(&data->mutex);
@@ -1168,7 +1168,7 @@ static int bmg160_suspend(struct device *dev)
static int bmg160_resume(struct device *dev)
{
- struct iio_dev *indio_dev = i2c_get_clientdata(to_i2c_client(dev));
+ struct iio_dev *indio_dev = dev_get_drvdata(dev);
struct bmg160_data *data = iio_priv(indio_dev);
mutex_lock(&data->mutex);
@@ -1184,7 +1184,7 @@ static int bmg160_resume(struct device *dev)
#ifdef CONFIG_PM
static int bmg160_runtime_suspend(struct device *dev)
{
- struct iio_dev *indio_dev = i2c_get_clientdata(to_i2c_client(dev));
+ struct iio_dev *indio_dev = dev_get_drvdata(dev);
struct bmg160_data *data = iio_priv(indio_dev);
int ret;
@@ -1199,7 +1199,7 @@ static int bmg160_runtime_suspend(struct device *dev)
static int bmg160_runtime_resume(struct device *dev)
{
- struct iio_dev *indio_dev = i2c_get_clientdata(to_i2c_client(dev));
+ struct iio_dev *indio_dev = dev_get_drvdata(dev);
struct bmg160_data *data = iio_priv(indio_dev);
int ret;
--
2.1.4
^ permalink raw reply related [flat|nested] 12+ messages in thread
* [PATCH v2 4/6] iio: bmg160: Remove remaining uses of i2c_client
2015-08-04 11:02 [PATCH v2 0/6] iio: bmg160: Add SPI connection Markus Pargmann
` (2 preceding siblings ...)
2015-08-04 11:02 ` [PATCH v2 3/6] iio: bmg160: Use generic dev_drvdata Markus Pargmann
@ 2015-08-04 11:02 ` Markus Pargmann
2015-08-04 11:02 ` [PATCH v2 5/6] iio: bmg160: Separate i2c and core driver Markus Pargmann
` (2 subsequent siblings)
6 siblings, 0 replies; 12+ messages in thread
From: Markus Pargmann @ 2015-08-04 11:02 UTC (permalink / raw)
To: Jonathan Cameron
Cc: Srinivas Pandruvada, Vlad Dogaru, Paul Bolle, linux-iio,
linux-kernel, kernel, Markus Pargmann
Signed-off-by: Markus Pargmann <mpa@pengutronix.de>
---
drivers/iio/gyro/bmg160.c | 55 +++++++++++++++++++++++------------------------
1 file changed, 27 insertions(+), 28 deletions(-)
diff --git a/drivers/iio/gyro/bmg160.c b/drivers/iio/gyro/bmg160.c
index b47b7af19e32..865ef4c1c43f 100644
--- a/drivers/iio/gyro/bmg160.c
+++ b/drivers/iio/gyro/bmg160.c
@@ -110,6 +110,7 @@ struct bmg160_data {
int slope_thres;
bool dready_trigger_on;
bool motion_trigger_on;
+ int irq;
};
enum bmg160_axis {
@@ -963,18 +964,14 @@ static const struct iio_buffer_setup_ops bmg160_buffer_setup_ops = {
.postdisable = bmg160_buffer_postdisable,
};
-static int bmg160_gpio_probe(struct i2c_client *client,
- struct bmg160_data *data)
+static int bmg160_gpio_probe(struct bmg160_data *data)
{
struct device *dev;
struct gpio_desc *gpio;
int ret;
- if (!client)
- return -EINVAL;
-
- dev = &client->dev;
+ dev = data->dev;
/* data ready gpio interrupt pin */
gpio = devm_gpiod_get_index(dev, BMG160_GPIO_NAME, 0, GPIOD_IN);
@@ -983,11 +980,11 @@ static int bmg160_gpio_probe(struct i2c_client *client,
return PTR_ERR(gpio);
}
- ret = gpiod_to_irq(gpio);
+ data->irq = gpiod_to_irq(gpio);
dev_dbg(dev, "GPIO resource, no:%d irq:%d\n", desc_to_gpio(gpio), ret);
- return ret;
+ return 0;
}
static const char *bmg160_match_acpi_device(struct device *dev)
@@ -1009,6 +1006,7 @@ static int bmg160_probe(struct i2c_client *client,
int ret;
const char *name = NULL;
struct regmap *regmap;
+ struct device *dev = &client->dev;
regmap = devm_regmap_init_i2c(client, &bmg160_regmap_i2c_conf);
if (IS_ERR(regmap)) {
@@ -1022,8 +1020,9 @@ static int bmg160_probe(struct i2c_client *client,
return -ENOMEM;
data = iio_priv(indio_dev);
- dev_set_drvdata(&client->dev, indio_dev);
- data->dev = &client->dev;
+ dev_set_drvdata(dev, indio_dev);
+ data->dev = dev;
+ data->irq = client->irq;
ret = bmg160_chip_init(data);
if (ret < 0)
@@ -1034,22 +1033,22 @@ static int bmg160_probe(struct i2c_client *client,
if (id)
name = id->name;
- if (ACPI_HANDLE(&client->dev))
- name = bmg160_match_acpi_device(&client->dev);
+ if (ACPI_HANDLE(dev))
+ name = bmg160_match_acpi_device(dev);
- indio_dev->dev.parent = &client->dev;
+ indio_dev->dev.parent = dev;
indio_dev->channels = bmg160_channels;
indio_dev->num_channels = ARRAY_SIZE(bmg160_channels);
indio_dev->name = name;
indio_dev->modes = INDIO_DIRECT_MODE;
indio_dev->info = &bmg160_info;
- if (client->irq <= 0)
- client->irq = bmg160_gpio_probe(client, data);
+ if (data->irq <= 0)
+ bmg160_gpio_probe(data);
- if (client->irq > 0) {
- ret = devm_request_threaded_irq(&client->dev,
- client->irq,
+ if (data->irq > 0) {
+ ret = devm_request_threaded_irq(dev,
+ data->irq,
bmg160_data_rdy_trig_poll,
bmg160_event_handler,
IRQF_TRIGGER_RISING,
@@ -1058,28 +1057,28 @@ static int bmg160_probe(struct i2c_client *client,
if (ret)
return ret;
- data->dready_trig = devm_iio_trigger_alloc(&client->dev,
+ data->dready_trig = devm_iio_trigger_alloc(dev,
"%s-dev%d",
indio_dev->name,
indio_dev->id);
if (!data->dready_trig)
return -ENOMEM;
- data->motion_trig = devm_iio_trigger_alloc(&client->dev,
+ data->motion_trig = devm_iio_trigger_alloc(dev,
"%s-any-motion-dev%d",
indio_dev->name,
indio_dev->id);
if (!data->motion_trig)
return -ENOMEM;
- data->dready_trig->dev.parent = &client->dev;
+ data->dready_trig->dev.parent = dev;
data->dready_trig->ops = &bmg160_trigger_ops;
iio_trigger_set_drvdata(data->dready_trig, indio_dev);
ret = iio_trigger_register(data->dready_trig);
if (ret)
return ret;
- data->motion_trig->dev.parent = &client->dev;
+ data->motion_trig->dev.parent = dev;
data->motion_trig->ops = &bmg160_trigger_ops;
iio_trigger_set_drvdata(data->motion_trig, indio_dev);
ret = iio_trigger_register(data->motion_trig);
@@ -1094,25 +1093,25 @@ static int bmg160_probe(struct i2c_client *client,
bmg160_trigger_handler,
&bmg160_buffer_setup_ops);
if (ret < 0) {
- dev_err(&client->dev,
+ dev_err(dev,
"iio triggered buffer setup failed\n");
goto err_trigger_unregister;
}
ret = iio_device_register(indio_dev);
if (ret < 0) {
- dev_err(&client->dev, "unable to register iio device\n");
+ dev_err(dev, "unable to register iio device\n");
goto err_buffer_cleanup;
}
- ret = pm_runtime_set_active(&client->dev);
+ ret = pm_runtime_set_active(dev);
if (ret)
goto err_iio_unregister;
- pm_runtime_enable(&client->dev);
- pm_runtime_set_autosuspend_delay(&client->dev,
+ pm_runtime_enable(dev);
+ pm_runtime_set_autosuspend_delay(dev,
BMG160_AUTO_SUSPEND_DELAY_MS);
- pm_runtime_use_autosuspend(&client->dev);
+ pm_runtime_use_autosuspend(dev);
return 0;
--
2.1.4
^ permalink raw reply related [flat|nested] 12+ messages in thread
* [PATCH v2 5/6] iio: bmg160: Separate i2c and core driver
2015-08-04 11:02 [PATCH v2 0/6] iio: bmg160: Add SPI connection Markus Pargmann
` (3 preceding siblings ...)
2015-08-04 11:02 ` [PATCH v2 4/6] iio: bmg160: Remove remaining uses of i2c_client Markus Pargmann
@ 2015-08-04 11:02 ` Markus Pargmann
2015-08-08 16:11 ` Jonathan Cameron
2015-08-04 11:02 ` [PATCH v2 6/6] iio: bmg160: Add SPI driver Markus Pargmann
2015-08-08 16:12 ` [PATCH v2 0/6] iio: bmg160: Add SPI connection Jonathan Cameron
6 siblings, 1 reply; 12+ messages in thread
From: Markus Pargmann @ 2015-08-04 11:02 UTC (permalink / raw)
To: Jonathan Cameron
Cc: Srinivas Pandruvada, Vlad Dogaru, Paul Bolle, linux-iio,
linux-kernel, kernel, Markus Pargmann
This patch separates the core driver using regmap and the i2c driver
which creates the i2c regmap. Also in the Kconfig file BMG160 and
BMG160_I2C are separate now.
Signed-off-by: Markus Pargmann <mpa@pengutronix.de>
---
drivers/iio/gyro/Kconfig | 18 +++++--
drivers/iio/gyro/Makefile | 3 +-
drivers/iio/gyro/bmg160.h | 10 ++++
drivers/iio/gyro/{bmg160.c => bmg160_core.c} | 77 ++++------------------------
drivers/iio/gyro/bmg160_i2c.c | 73 ++++++++++++++++++++++++++
5 files changed, 110 insertions(+), 71 deletions(-)
create mode 100644 drivers/iio/gyro/bmg160.h
rename drivers/iio/gyro/{bmg160.c => bmg160_core.c} (94%)
create mode 100644 drivers/iio/gyro/bmg160_i2c.c
diff --git a/drivers/iio/gyro/Kconfig b/drivers/iio/gyro/Kconfig
index b44984b3bb24..1e6cfff5546f 100644
--- a/drivers/iio/gyro/Kconfig
+++ b/drivers/iio/gyro/Kconfig
@@ -51,18 +51,28 @@ config ADXRS450
will be called adxrs450.
config BMG160
- tristate "BOSCH BMG160 Gyro Sensor"
- depends on I2C
+ bool "BOSCH BMG160 Gyro Sensor"
select IIO_BUFFER
select IIO_TRIGGERED_BUFFER
select REGMAP
- select REGMAP_I2C
help
Say yes here to build support for Bosch BMG160 Tri-axis Gyro Sensor
driver. This driver also supports BMI055 gyroscope.
+if BMG160
+
+config BMG160_I2C
+ tristate "Driver for connection via I2C"
+ depends on I2C
+ select REGMAP_I2C
+ help
+ Say yes here to build support for Bosch BMG160 Tri-axis Gyro Sensor
+ driver connected via I2C. This driver also supports BMI055 gyroscope.
+
This driver can also be built as a module. If so, the module
- will be called bmg160.
+ will be called bmg160_i2c.
+
+endif
config HID_SENSOR_GYRO_3D
depends on HID_SENSOR_HUB
diff --git a/drivers/iio/gyro/Makefile b/drivers/iio/gyro/Makefile
index f46341b39139..608401041550 100644
--- a/drivers/iio/gyro/Makefile
+++ b/drivers/iio/gyro/Makefile
@@ -8,7 +8,8 @@ obj-$(CONFIG_ADIS16130) += adis16130.o
obj-$(CONFIG_ADIS16136) += adis16136.o
obj-$(CONFIG_ADIS16260) += adis16260.o
obj-$(CONFIG_ADXRS450) += adxrs450.o
-obj-$(CONFIG_BMG160) += bmg160.o
+obj-$(CONFIG_BMG160) += bmg160_core.o
+obj-$(CONFIG_BMG160_I2C) += bmg160_i2c.o
obj-$(CONFIG_HID_SENSOR_GYRO_3D) += hid-sensor-gyro-3d.o
diff --git a/drivers/iio/gyro/bmg160.h b/drivers/iio/gyro/bmg160.h
new file mode 100644
index 000000000000..72db723c8fb6
--- /dev/null
+++ b/drivers/iio/gyro/bmg160.h
@@ -0,0 +1,10 @@
+#ifndef BMG160_H_
+#define BMG160_H_
+
+extern const struct dev_pm_ops bmg160_pm_ops;
+
+int bmg160_core_probe(struct device *dev, struct regmap *regmap, int irq,
+ const char *name);
+void bmg160_core_remove(struct device *dev);
+
+#endif /* BMG160_H_ */
diff --git a/drivers/iio/gyro/bmg160.c b/drivers/iio/gyro/bmg160_core.c
similarity index 94%
rename from drivers/iio/gyro/bmg160.c
rename to drivers/iio/gyro/bmg160_core.c
index 865ef4c1c43f..ba37db5d491a 100644
--- a/drivers/iio/gyro/bmg160.c
+++ b/drivers/iio/gyro/bmg160_core.c
@@ -13,7 +13,6 @@
*/
#include <linux/module.h>
-#include <linux/i2c.h>
#include <linux/interrupt.h>
#include <linux/delay.h>
#include <linux/slab.h>
@@ -30,7 +29,6 @@
#include <linux/iio/triggered_buffer.h>
#include <linux/regmap.h>
-#define BMG160_DRV_NAME "bmg160"
#define BMG160_IRQ_NAME "bmg160_event"
#define BMG160_GPIO_NAME "gpio_int"
@@ -137,14 +135,6 @@ static const struct {
{ 133, BMG160_RANGE_250DPS},
{ 66, BMG160_RANGE_125DPS} };
-struct regmap_config bmg160_regmap_i2c_conf = {
- .reg_bits = 8,
- .val_bits = 8,
-
- .use_single_rw = true,
- .cache_type = REGCACHE_NONE,
-};
-
static int bmg160_set_mode(struct bmg160_data *data, u8 mode)
{
int ret;
@@ -998,31 +988,22 @@ static const char *bmg160_match_acpi_device(struct device *dev)
return dev_name(dev);
}
-static int bmg160_probe(struct i2c_client *client,
- const struct i2c_device_id *id)
+int bmg160_core_probe(struct device *dev, struct regmap *regmap, int irq,
+ const char *name)
{
struct bmg160_data *data;
struct iio_dev *indio_dev;
int ret;
- const char *name = NULL;
- struct regmap *regmap;
- struct device *dev = &client->dev;
-
- regmap = devm_regmap_init_i2c(client, &bmg160_regmap_i2c_conf);
- if (IS_ERR(regmap)) {
- dev_err(&client->dev, "Failed to register i2c regmap %d\n",
- (int)PTR_ERR(regmap));
- return PTR_ERR(regmap);
- }
- indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*data));
+ indio_dev = devm_iio_device_alloc(dev, sizeof(*data));
if (!indio_dev)
return -ENOMEM;
data = iio_priv(indio_dev);
dev_set_drvdata(dev, indio_dev);
data->dev = dev;
- data->irq = client->irq;
+ data->irq = irq;
+ data->regmap = regmap;
ret = bmg160_chip_init(data);
if (ret < 0)
@@ -1030,9 +1011,6 @@ static int bmg160_probe(struct i2c_client *client,
mutex_init(&data->mutex);
- if (id)
- name = id->name;
-
if (ACPI_HANDLE(dev))
name = bmg160_match_acpi_device(dev);
@@ -1128,14 +1106,14 @@ err_trigger_unregister:
return ret;
}
-static int bmg160_remove(struct i2c_client *client)
+void bmg160_core_remove(struct device *dev)
{
- struct iio_dev *indio_dev = i2c_get_clientdata(client);
+ struct iio_dev *indio_dev = dev_get_drvdata(dev);
struct bmg160_data *data = iio_priv(indio_dev);
- pm_runtime_disable(&client->dev);
- pm_runtime_set_suspended(&client->dev);
- pm_runtime_put_noidle(&client->dev);
+ pm_runtime_disable(dev);
+ pm_runtime_set_suspended(dev);
+ pm_runtime_put_noidle(dev);
iio_device_unregister(indio_dev);
iio_triggered_buffer_cleanup(indio_dev);
@@ -1148,8 +1126,6 @@ static int bmg160_remove(struct i2c_client *client)
mutex_lock(&data->mutex);
bmg160_set_mode(data, BMG160_MODE_DEEP_SUSPEND);
mutex_unlock(&data->mutex);
-
- return 0;
}
#ifdef CONFIG_PM_SLEEP
@@ -1212,40 +1188,9 @@ static int bmg160_runtime_resume(struct device *dev)
}
#endif
-static const struct dev_pm_ops bmg160_pm_ops = {
+const struct dev_pm_ops bmg160_pm_ops = {
SET_SYSTEM_SLEEP_PM_OPS(bmg160_suspend, bmg160_resume)
SET_RUNTIME_PM_OPS(bmg160_runtime_suspend,
bmg160_runtime_resume, NULL)
};
-static const struct acpi_device_id bmg160_acpi_match[] = {
- {"BMG0160", 0},
- {"BMI055B", 0},
- {},
-};
-
-MODULE_DEVICE_TABLE(acpi, bmg160_acpi_match);
-
-static const struct i2c_device_id bmg160_id[] = {
- {"bmg160", 0},
- {"bmi055_gyro", 0},
- {}
-};
-
-MODULE_DEVICE_TABLE(i2c, bmg160_id);
-
-static struct i2c_driver bmg160_driver = {
- .driver = {
- .name = BMG160_DRV_NAME,
- .acpi_match_table = ACPI_PTR(bmg160_acpi_match),
- .pm = &bmg160_pm_ops,
- },
- .probe = bmg160_probe,
- .remove = bmg160_remove,
- .id_table = bmg160_id,
-};
-module_i2c_driver(bmg160_driver);
-
-MODULE_AUTHOR("Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>");
-MODULE_LICENSE("GPL v2");
-MODULE_DESCRIPTION("BMG160 Gyro driver");
diff --git a/drivers/iio/gyro/bmg160_i2c.c b/drivers/iio/gyro/bmg160_i2c.c
new file mode 100644
index 000000000000..4a39dff13cf2
--- /dev/null
+++ b/drivers/iio/gyro/bmg160_i2c.c
@@ -0,0 +1,73 @@
+#include <linux/i2c.h>
+#include <linux/regmap.h>
+#include <linux/iio/iio.h>
+#include <linux/module.h>
+#include <linux/acpi.h>
+
+#include "bmg160.h"
+
+static const struct regmap_config bmg160_regmap_i2c_conf = {
+ .reg_bits = 8,
+ .val_bits = 8,
+
+ .use_single_rw = true,
+ .cache_type = REGCACHE_NONE,
+};
+
+static int bmg160_i2c_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ struct regmap *regmap;
+ const char *name = NULL;
+
+ regmap = devm_regmap_init_i2c(client, &bmg160_regmap_i2c_conf);
+ if (IS_ERR(regmap)) {
+ dev_err(&client->dev, "Failed to register i2c regmap %d\n",
+ (int)PTR_ERR(regmap));
+ return PTR_ERR(regmap);
+ }
+
+ if (id)
+ name = id->name;
+
+ return bmg160_core_probe(&client->dev, regmap, client->irq, name);
+}
+
+static int bmg160_i2c_remove(struct i2c_client *client)
+{
+ bmg160_core_remove(&client->dev);
+
+ return 0;
+}
+
+static const struct acpi_device_id bmg160_acpi_match[] = {
+ {"BMG0160", 0},
+ {"BMI055B", 0},
+ {},
+};
+
+MODULE_DEVICE_TABLE(acpi, bmg160_acpi_match);
+
+static const struct i2c_device_id bmg160_i2c_id[] = {
+ {"bmg160", 0},
+ {"bmi055_gyro", 0},
+ {}
+};
+
+MODULE_DEVICE_TABLE(i2c, bmg160_i2c_id);
+
+static struct i2c_driver bmg160_i2c_driver = {
+ .driver = {
+ .name = "bmg160_i2c",
+ .acpi_match_table = ACPI_PTR(bmg160_acpi_match),
+ .pm = &bmg160_pm_ops,
+ },
+ .probe = bmg160_i2c_probe,
+ .remove = bmg160_i2c_remove,
+ .id_table = bmg160_i2c_id,
+};
+module_i2c_driver(bmg160_i2c_driver);
+
+MODULE_AUTHOR("Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>");
+MODULE_LICENSE("GPL v2");
+MODULE_DESCRIPTION("BMG160 I2C Gyro driver");
--
2.1.4
^ permalink raw reply related [flat|nested] 12+ messages in thread
* Re: [PATCH v2 5/6] iio: bmg160: Separate i2c and core driver
2015-08-04 11:02 ` [PATCH v2 5/6] iio: bmg160: Separate i2c and core driver Markus Pargmann
@ 2015-08-08 16:11 ` Jonathan Cameron
2015-08-09 6:45 ` Markus Pargmann
0 siblings, 1 reply; 12+ messages in thread
From: Jonathan Cameron @ 2015-08-08 16:11 UTC (permalink / raw)
To: Markus Pargmann
Cc: Srinivas Pandruvada, Vlad Dogaru, Paul Bolle, linux-iio,
linux-kernel, kernel
On 04/08/15 12:02, Markus Pargmann wrote:
> This patch separates the core driver using regmap and the i2c driver
> which creates the i2c regmap. Also in the Kconfig file BMG160 and
> BMG160_I2C are separate now.
>
> Signed-off-by: Markus Pargmann <mpa@pengutronix.de>
Don't you need to EXPORT the various functions to be used
across the modules?
> ---
> drivers/iio/gyro/Kconfig | 18 +++++--
> drivers/iio/gyro/Makefile | 3 +-
> drivers/iio/gyro/bmg160.h | 10 ++++
> drivers/iio/gyro/{bmg160.c => bmg160_core.c} | 77 ++++------------------------
> drivers/iio/gyro/bmg160_i2c.c | 73 ++++++++++++++++++++++++++
> 5 files changed, 110 insertions(+), 71 deletions(-)
> create mode 100644 drivers/iio/gyro/bmg160.h
> rename drivers/iio/gyro/{bmg160.c => bmg160_core.c} (94%)
> create mode 100644 drivers/iio/gyro/bmg160_i2c.c
>
> diff --git a/drivers/iio/gyro/Kconfig b/drivers/iio/gyro/Kconfig
> index b44984b3bb24..1e6cfff5546f 100644
> --- a/drivers/iio/gyro/Kconfig
> +++ b/drivers/iio/gyro/Kconfig
> @@ -51,18 +51,28 @@ config ADXRS450
> will be called adxrs450.
>
> config BMG160
> - tristate "BOSCH BMG160 Gyro Sensor"
> - depends on I2C
> + bool "BOSCH BMG160 Gyro Sensor"
> select IIO_BUFFER
> select IIO_TRIGGERED_BUFFER
> select REGMAP
> - select REGMAP_I2C
> help
> Say yes here to build support for Bosch BMG160 Tri-axis Gyro Sensor
> driver. This driver also supports BMI055 gyroscope.
>
> +if BMG160
> +
> +config BMG160_I2C
> + tristate "Driver for connection via I2C"
> + depends on I2C
> + select REGMAP_I2C
> + help
> + Say yes here to build support for Bosch BMG160 Tri-axis Gyro Sensor
> + driver connected via I2C. This driver also supports BMI055 gyroscope.
> +
> This driver can also be built as a module. If so, the module
> - will be called bmg160.
> + will be called bmg160_i2c.
> +
> +endif
>
> config HID_SENSOR_GYRO_3D
> depends on HID_SENSOR_HUB
> diff --git a/drivers/iio/gyro/Makefile b/drivers/iio/gyro/Makefile
> index f46341b39139..608401041550 100644
> --- a/drivers/iio/gyro/Makefile
> +++ b/drivers/iio/gyro/Makefile
> @@ -8,7 +8,8 @@ obj-$(CONFIG_ADIS16130) += adis16130.o
> obj-$(CONFIG_ADIS16136) += adis16136.o
> obj-$(CONFIG_ADIS16260) += adis16260.o
> obj-$(CONFIG_ADXRS450) += adxrs450.o
> -obj-$(CONFIG_BMG160) += bmg160.o
> +obj-$(CONFIG_BMG160) += bmg160_core.o
> +obj-$(CONFIG_BMG160_I2C) += bmg160_i2c.o
>
> obj-$(CONFIG_HID_SENSOR_GYRO_3D) += hid-sensor-gyro-3d.o
>
> diff --git a/drivers/iio/gyro/bmg160.h b/drivers/iio/gyro/bmg160.h
> new file mode 100644
> index 000000000000..72db723c8fb6
> --- /dev/null
> +++ b/drivers/iio/gyro/bmg160.h
> @@ -0,0 +1,10 @@
> +#ifndef BMG160_H_
> +#define BMG160_H_
> +
> +extern const struct dev_pm_ops bmg160_pm_ops;
> +
> +int bmg160_core_probe(struct device *dev, struct regmap *regmap, int irq,
> + const char *name);
> +void bmg160_core_remove(struct device *dev);
> +
> +#endif /* BMG160_H_ */
> diff --git a/drivers/iio/gyro/bmg160.c b/drivers/iio/gyro/bmg160_core.c
> similarity index 94%
> rename from drivers/iio/gyro/bmg160.c
> rename to drivers/iio/gyro/bmg160_core.c
> index 865ef4c1c43f..ba37db5d491a 100644
> --- a/drivers/iio/gyro/bmg160.c
> +++ b/drivers/iio/gyro/bmg160_core.c
> @@ -13,7 +13,6 @@
> */
>
> #include <linux/module.h>
> -#include <linux/i2c.h>
> #include <linux/interrupt.h>
> #include <linux/delay.h>
> #include <linux/slab.h>
> @@ -30,7 +29,6 @@
> #include <linux/iio/triggered_buffer.h>
> #include <linux/regmap.h>
>
> -#define BMG160_DRV_NAME "bmg160"
> #define BMG160_IRQ_NAME "bmg160_event"
> #define BMG160_GPIO_NAME "gpio_int"
>
> @@ -137,14 +135,6 @@ static const struct {
> { 133, BMG160_RANGE_250DPS},
> { 66, BMG160_RANGE_125DPS} };
>
> -struct regmap_config bmg160_regmap_i2c_conf = {
> - .reg_bits = 8,
> - .val_bits = 8,
> -
> - .use_single_rw = true,
> - .cache_type = REGCACHE_NONE,
> -};
> -
> static int bmg160_set_mode(struct bmg160_data *data, u8 mode)
> {
> int ret;
> @@ -998,31 +988,22 @@ static const char *bmg160_match_acpi_device(struct device *dev)
> return dev_name(dev);
> }
>
> -static int bmg160_probe(struct i2c_client *client,
> - const struct i2c_device_id *id)
> +int bmg160_core_probe(struct device *dev, struct regmap *regmap, int irq,
> + const char *name)
> {
> struct bmg160_data *data;
> struct iio_dev *indio_dev;
> int ret;
> - const char *name = NULL;
> - struct regmap *regmap;
> - struct device *dev = &client->dev;
> -
> - regmap = devm_regmap_init_i2c(client, &bmg160_regmap_i2c_conf);
> - if (IS_ERR(regmap)) {
> - dev_err(&client->dev, "Failed to register i2c regmap %d\n",
> - (int)PTR_ERR(regmap));
> - return PTR_ERR(regmap);
> - }
>
> - indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*data));
> + indio_dev = devm_iio_device_alloc(dev, sizeof(*data));
> if (!indio_dev)
> return -ENOMEM;
>
> data = iio_priv(indio_dev);
> dev_set_drvdata(dev, indio_dev);
> data->dev = dev;
> - data->irq = client->irq;
> + data->irq = irq;
> + data->regmap = regmap;
>
> ret = bmg160_chip_init(data);
> if (ret < 0)
> @@ -1030,9 +1011,6 @@ static int bmg160_probe(struct i2c_client *client,
>
> mutex_init(&data->mutex);
>
> - if (id)
> - name = id->name;
> -
> if (ACPI_HANDLE(dev))
> name = bmg160_match_acpi_device(dev);
>
> @@ -1128,14 +1106,14 @@ err_trigger_unregister:
> return ret;
> }
>
> -static int bmg160_remove(struct i2c_client *client)
> +void bmg160_core_remove(struct device *dev)
> {
> - struct iio_dev *indio_dev = i2c_get_clientdata(client);
> + struct iio_dev *indio_dev = dev_get_drvdata(dev);
> struct bmg160_data *data = iio_priv(indio_dev);
>
> - pm_runtime_disable(&client->dev);
> - pm_runtime_set_suspended(&client->dev);
> - pm_runtime_put_noidle(&client->dev);
> + pm_runtime_disable(dev);
> + pm_runtime_set_suspended(dev);
> + pm_runtime_put_noidle(dev);
>
> iio_device_unregister(indio_dev);
> iio_triggered_buffer_cleanup(indio_dev);
> @@ -1148,8 +1126,6 @@ static int bmg160_remove(struct i2c_client *client)
> mutex_lock(&data->mutex);
> bmg160_set_mode(data, BMG160_MODE_DEEP_SUSPEND);
> mutex_unlock(&data->mutex);
> -
> - return 0;
> }
GIven use across a module boundary I'd have thought an EXPORT was needed.
>
> #ifdef CONFIG_PM_SLEEP
> @@ -1212,40 +1188,9 @@ static int bmg160_runtime_resume(struct device *dev)
> }
> #endif
>
> -static const struct dev_pm_ops bmg160_pm_ops = {
> +const struct dev_pm_ops bmg160_pm_ops = {
> SET_SYSTEM_SLEEP_PM_OPS(bmg160_suspend, bmg160_resume)
> SET_RUNTIME_PM_OPS(bmg160_runtime_suspend,
> bmg160_runtime_resume, NULL)
> };
>
> -static const struct acpi_device_id bmg160_acpi_match[] = {
> - {"BMG0160", 0},
> - {"BMI055B", 0},
> - {},
> -};
> -
> -MODULE_DEVICE_TABLE(acpi, bmg160_acpi_match);
> -
> -static const struct i2c_device_id bmg160_id[] = {
> - {"bmg160", 0},
> - {"bmi055_gyro", 0},
> - {}
> -};
> -
> -MODULE_DEVICE_TABLE(i2c, bmg160_id);
> -
> -static struct i2c_driver bmg160_driver = {
> - .driver = {
> - .name = BMG160_DRV_NAME,
> - .acpi_match_table = ACPI_PTR(bmg160_acpi_match),
> - .pm = &bmg160_pm_ops,
> - },
> - .probe = bmg160_probe,
> - .remove = bmg160_remove,
> - .id_table = bmg160_id,
> -};
> -module_i2c_driver(bmg160_driver);
> -
> -MODULE_AUTHOR("Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>");
> -MODULE_LICENSE("GPL v2");
> -MODULE_DESCRIPTION("BMG160 Gyro driver");
> diff --git a/drivers/iio/gyro/bmg160_i2c.c b/drivers/iio/gyro/bmg160_i2c.c
> new file mode 100644
> index 000000000000..4a39dff13cf2
> --- /dev/null
> +++ b/drivers/iio/gyro/bmg160_i2c.c
> @@ -0,0 +1,73 @@
> +#include <linux/i2c.h>
> +#include <linux/regmap.h>
> +#include <linux/iio/iio.h>
> +#include <linux/module.h>
> +#include <linux/acpi.h>
> +
> +#include "bmg160.h"
> +
> +static const struct regmap_config bmg160_regmap_i2c_conf = {
> + .reg_bits = 8,
> + .val_bits = 8,
> +
> + .use_single_rw = true,
> + .cache_type = REGCACHE_NONE,
> +};
> +
> +static int bmg160_i2c_probe(struct i2c_client *client,
> + const struct i2c_device_id *id)
> +{
> + struct regmap *regmap;
> + const char *name = NULL;
> +
> + regmap = devm_regmap_init_i2c(client, &bmg160_regmap_i2c_conf);
> + if (IS_ERR(regmap)) {
> + dev_err(&client->dev, "Failed to register i2c regmap %d\n",
> + (int)PTR_ERR(regmap));
> + return PTR_ERR(regmap);
> + }
> +
> + if (id)
> + name = id->name;
> +
> + return bmg160_core_probe(&client->dev, regmap, client->irq, name);
> +}
> +
> +static int bmg160_i2c_remove(struct i2c_client *client)
> +{
> + bmg160_core_remove(&client->dev);
> +
> + return 0;
> +}
> +
> +static const struct acpi_device_id bmg160_acpi_match[] = {
> + {"BMG0160", 0},
> + {"BMI055B", 0},
> + {},
> +};
> +
> +MODULE_DEVICE_TABLE(acpi, bmg160_acpi_match);
> +
> +static const struct i2c_device_id bmg160_i2c_id[] = {
> + {"bmg160", 0},
> + {"bmi055_gyro", 0},
> + {}
> +};
> +
> +MODULE_DEVICE_TABLE(i2c, bmg160_i2c_id);
> +
> +static struct i2c_driver bmg160_i2c_driver = {
> + .driver = {
> + .name = "bmg160_i2c",
> + .acpi_match_table = ACPI_PTR(bmg160_acpi_match),
> + .pm = &bmg160_pm_ops,
> + },
> + .probe = bmg160_i2c_probe,
> + .remove = bmg160_i2c_remove,
> + .id_table = bmg160_i2c_id,
> +};
> +module_i2c_driver(bmg160_i2c_driver);
> +
> +MODULE_AUTHOR("Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>");
> +MODULE_LICENSE("GPL v2");
> +MODULE_DESCRIPTION("BMG160 I2C Gyro driver");
>
^ permalink raw reply [flat|nested] 12+ messages in thread
* Re: [PATCH v2 5/6] iio: bmg160: Separate i2c and core driver
2015-08-08 16:11 ` Jonathan Cameron
@ 2015-08-09 6:45 ` Markus Pargmann
0 siblings, 0 replies; 12+ messages in thread
From: Markus Pargmann @ 2015-08-09 6:45 UTC (permalink / raw)
To: Jonathan Cameron
Cc: Srinivas Pandruvada, Vlad Dogaru, Paul Bolle, linux-iio,
linux-kernel, kernel
[-- Attachment #1: Type: text/plain, Size: 10989 bytes --]
On Sat, Aug 08, 2015 at 05:11:02PM +0100, Jonathan Cameron wrote:
> On 04/08/15 12:02, Markus Pargmann wrote:
> > This patch separates the core driver using regmap and the i2c driver
> > which creates the i2c regmap. Also in the Kconfig file BMG160 and
> > BMG160_I2C are separate now.
> >
> > Signed-off-by: Markus Pargmann <mpa@pengutronix.de>
> Don't you need to EXPORT the various functions to be used
> across the modules?
Yes, thanks. Will fix it.
Best Regards,
Markus
> > ---
> > drivers/iio/gyro/Kconfig | 18 +++++--
> > drivers/iio/gyro/Makefile | 3 +-
> > drivers/iio/gyro/bmg160.h | 10 ++++
> > drivers/iio/gyro/{bmg160.c => bmg160_core.c} | 77 ++++------------------------
> > drivers/iio/gyro/bmg160_i2c.c | 73 ++++++++++++++++++++++++++
> > 5 files changed, 110 insertions(+), 71 deletions(-)
> > create mode 100644 drivers/iio/gyro/bmg160.h
> > rename drivers/iio/gyro/{bmg160.c => bmg160_core.c} (94%)
> > create mode 100644 drivers/iio/gyro/bmg160_i2c.c
> >
> > diff --git a/drivers/iio/gyro/Kconfig b/drivers/iio/gyro/Kconfig
> > index b44984b3bb24..1e6cfff5546f 100644
> > --- a/drivers/iio/gyro/Kconfig
> > +++ b/drivers/iio/gyro/Kconfig
> > @@ -51,18 +51,28 @@ config ADXRS450
> > will be called adxrs450.
> >
> > config BMG160
> > - tristate "BOSCH BMG160 Gyro Sensor"
> > - depends on I2C
> > + bool "BOSCH BMG160 Gyro Sensor"
> > select IIO_BUFFER
> > select IIO_TRIGGERED_BUFFER
> > select REGMAP
> > - select REGMAP_I2C
> > help
> > Say yes here to build support for Bosch BMG160 Tri-axis Gyro Sensor
> > driver. This driver also supports BMI055 gyroscope.
> >
> > +if BMG160
> > +
> > +config BMG160_I2C
> > + tristate "Driver for connection via I2C"
> > + depends on I2C
> > + select REGMAP_I2C
> > + help
> > + Say yes here to build support for Bosch BMG160 Tri-axis Gyro Sensor
> > + driver connected via I2C. This driver also supports BMI055 gyroscope.
> > +
> > This driver can also be built as a module. If so, the module
> > - will be called bmg160.
> > + will be called bmg160_i2c.
> > +
> > +endif
> >
> > config HID_SENSOR_GYRO_3D
> > depends on HID_SENSOR_HUB
> > diff --git a/drivers/iio/gyro/Makefile b/drivers/iio/gyro/Makefile
> > index f46341b39139..608401041550 100644
> > --- a/drivers/iio/gyro/Makefile
> > +++ b/drivers/iio/gyro/Makefile
> > @@ -8,7 +8,8 @@ obj-$(CONFIG_ADIS16130) += adis16130.o
> > obj-$(CONFIG_ADIS16136) += adis16136.o
> > obj-$(CONFIG_ADIS16260) += adis16260.o
> > obj-$(CONFIG_ADXRS450) += adxrs450.o
> > -obj-$(CONFIG_BMG160) += bmg160.o
> > +obj-$(CONFIG_BMG160) += bmg160_core.o
> > +obj-$(CONFIG_BMG160_I2C) += bmg160_i2c.o
> >
> > obj-$(CONFIG_HID_SENSOR_GYRO_3D) += hid-sensor-gyro-3d.o
> >
> > diff --git a/drivers/iio/gyro/bmg160.h b/drivers/iio/gyro/bmg160.h
> > new file mode 100644
> > index 000000000000..72db723c8fb6
> > --- /dev/null
> > +++ b/drivers/iio/gyro/bmg160.h
> > @@ -0,0 +1,10 @@
> > +#ifndef BMG160_H_
> > +#define BMG160_H_
> > +
> > +extern const struct dev_pm_ops bmg160_pm_ops;
> > +
> > +int bmg160_core_probe(struct device *dev, struct regmap *regmap, int irq,
> > + const char *name);
> > +void bmg160_core_remove(struct device *dev);
> > +
> > +#endif /* BMG160_H_ */
> > diff --git a/drivers/iio/gyro/bmg160.c b/drivers/iio/gyro/bmg160_core.c
> > similarity index 94%
> > rename from drivers/iio/gyro/bmg160.c
> > rename to drivers/iio/gyro/bmg160_core.c
> > index 865ef4c1c43f..ba37db5d491a 100644
> > --- a/drivers/iio/gyro/bmg160.c
> > +++ b/drivers/iio/gyro/bmg160_core.c
> > @@ -13,7 +13,6 @@
> > */
> >
> > #include <linux/module.h>
> > -#include <linux/i2c.h>
> > #include <linux/interrupt.h>
> > #include <linux/delay.h>
> > #include <linux/slab.h>
> > @@ -30,7 +29,6 @@
> > #include <linux/iio/triggered_buffer.h>
> > #include <linux/regmap.h>
> >
> > -#define BMG160_DRV_NAME "bmg160"
> > #define BMG160_IRQ_NAME "bmg160_event"
> > #define BMG160_GPIO_NAME "gpio_int"
> >
> > @@ -137,14 +135,6 @@ static const struct {
> > { 133, BMG160_RANGE_250DPS},
> > { 66, BMG160_RANGE_125DPS} };
> >
> > -struct regmap_config bmg160_regmap_i2c_conf = {
> > - .reg_bits = 8,
> > - .val_bits = 8,
> > -
> > - .use_single_rw = true,
> > - .cache_type = REGCACHE_NONE,
> > -};
> > -
> > static int bmg160_set_mode(struct bmg160_data *data, u8 mode)
> > {
> > int ret;
> > @@ -998,31 +988,22 @@ static const char *bmg160_match_acpi_device(struct device *dev)
> > return dev_name(dev);
> > }
> >
> > -static int bmg160_probe(struct i2c_client *client,
> > - const struct i2c_device_id *id)
> > +int bmg160_core_probe(struct device *dev, struct regmap *regmap, int irq,
> > + const char *name)
> > {
> > struct bmg160_data *data;
> > struct iio_dev *indio_dev;
> > int ret;
> > - const char *name = NULL;
> > - struct regmap *regmap;
> > - struct device *dev = &client->dev;
> > -
> > - regmap = devm_regmap_init_i2c(client, &bmg160_regmap_i2c_conf);
> > - if (IS_ERR(regmap)) {
> > - dev_err(&client->dev, "Failed to register i2c regmap %d\n",
> > - (int)PTR_ERR(regmap));
> > - return PTR_ERR(regmap);
> > - }
> >
> > - indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*data));
> > + indio_dev = devm_iio_device_alloc(dev, sizeof(*data));
> > if (!indio_dev)
> > return -ENOMEM;
> >
> > data = iio_priv(indio_dev);
> > dev_set_drvdata(dev, indio_dev);
> > data->dev = dev;
> > - data->irq = client->irq;
> > + data->irq = irq;
> > + data->regmap = regmap;
> >
> > ret = bmg160_chip_init(data);
> > if (ret < 0)
> > @@ -1030,9 +1011,6 @@ static int bmg160_probe(struct i2c_client *client,
> >
> > mutex_init(&data->mutex);
> >
> > - if (id)
> > - name = id->name;
> > -
> > if (ACPI_HANDLE(dev))
> > name = bmg160_match_acpi_device(dev);
> >
> > @@ -1128,14 +1106,14 @@ err_trigger_unregister:
> > return ret;
> > }
> >
> > -static int bmg160_remove(struct i2c_client *client)
> > +void bmg160_core_remove(struct device *dev)
> > {
> > - struct iio_dev *indio_dev = i2c_get_clientdata(client);
> > + struct iio_dev *indio_dev = dev_get_drvdata(dev);
> > struct bmg160_data *data = iio_priv(indio_dev);
> >
> > - pm_runtime_disable(&client->dev);
> > - pm_runtime_set_suspended(&client->dev);
> > - pm_runtime_put_noidle(&client->dev);
> > + pm_runtime_disable(dev);
> > + pm_runtime_set_suspended(dev);
> > + pm_runtime_put_noidle(dev);
> >
> > iio_device_unregister(indio_dev);
> > iio_triggered_buffer_cleanup(indio_dev);
> > @@ -1148,8 +1126,6 @@ static int bmg160_remove(struct i2c_client *client)
> > mutex_lock(&data->mutex);
> > bmg160_set_mode(data, BMG160_MODE_DEEP_SUSPEND);
> > mutex_unlock(&data->mutex);
> > -
> > - return 0;
> > }
> GIven use across a module boundary I'd have thought an EXPORT was needed.
> >
> > #ifdef CONFIG_PM_SLEEP
> > @@ -1212,40 +1188,9 @@ static int bmg160_runtime_resume(struct device *dev)
> > }
> > #endif
> >
> > -static const struct dev_pm_ops bmg160_pm_ops = {
> > +const struct dev_pm_ops bmg160_pm_ops = {
> > SET_SYSTEM_SLEEP_PM_OPS(bmg160_suspend, bmg160_resume)
> > SET_RUNTIME_PM_OPS(bmg160_runtime_suspend,
> > bmg160_runtime_resume, NULL)
> > };
> >
> > -static const struct acpi_device_id bmg160_acpi_match[] = {
> > - {"BMG0160", 0},
> > - {"BMI055B", 0},
> > - {},
> > -};
> > -
> > -MODULE_DEVICE_TABLE(acpi, bmg160_acpi_match);
> > -
> > -static const struct i2c_device_id bmg160_id[] = {
> > - {"bmg160", 0},
> > - {"bmi055_gyro", 0},
> > - {}
> > -};
> > -
> > -MODULE_DEVICE_TABLE(i2c, bmg160_id);
> > -
> > -static struct i2c_driver bmg160_driver = {
> > - .driver = {
> > - .name = BMG160_DRV_NAME,
> > - .acpi_match_table = ACPI_PTR(bmg160_acpi_match),
> > - .pm = &bmg160_pm_ops,
> > - },
> > - .probe = bmg160_probe,
> > - .remove = bmg160_remove,
> > - .id_table = bmg160_id,
> > -};
> > -module_i2c_driver(bmg160_driver);
> > -
> > -MODULE_AUTHOR("Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>");
> > -MODULE_LICENSE("GPL v2");
> > -MODULE_DESCRIPTION("BMG160 Gyro driver");
> > diff --git a/drivers/iio/gyro/bmg160_i2c.c b/drivers/iio/gyro/bmg160_i2c.c
> > new file mode 100644
> > index 000000000000..4a39dff13cf2
> > --- /dev/null
> > +++ b/drivers/iio/gyro/bmg160_i2c.c
> > @@ -0,0 +1,73 @@
> > +#include <linux/i2c.h>
> > +#include <linux/regmap.h>
> > +#include <linux/iio/iio.h>
> > +#include <linux/module.h>
> > +#include <linux/acpi.h>
> > +
> > +#include "bmg160.h"
> > +
> > +static const struct regmap_config bmg160_regmap_i2c_conf = {
> > + .reg_bits = 8,
> > + .val_bits = 8,
> > +
> > + .use_single_rw = true,
> > + .cache_type = REGCACHE_NONE,
> > +};
> > +
> > +static int bmg160_i2c_probe(struct i2c_client *client,
> > + const struct i2c_device_id *id)
> > +{
> > + struct regmap *regmap;
> > + const char *name = NULL;
> > +
> > + regmap = devm_regmap_init_i2c(client, &bmg160_regmap_i2c_conf);
> > + if (IS_ERR(regmap)) {
> > + dev_err(&client->dev, "Failed to register i2c regmap %d\n",
> > + (int)PTR_ERR(regmap));
> > + return PTR_ERR(regmap);
> > + }
> > +
> > + if (id)
> > + name = id->name;
> > +
> > + return bmg160_core_probe(&client->dev, regmap, client->irq, name);
> > +}
> > +
> > +static int bmg160_i2c_remove(struct i2c_client *client)
> > +{
> > + bmg160_core_remove(&client->dev);
> > +
> > + return 0;
> > +}
> > +
> > +static const struct acpi_device_id bmg160_acpi_match[] = {
> > + {"BMG0160", 0},
> > + {"BMI055B", 0},
> > + {},
> > +};
> > +
> > +MODULE_DEVICE_TABLE(acpi, bmg160_acpi_match);
> > +
> > +static const struct i2c_device_id bmg160_i2c_id[] = {
> > + {"bmg160", 0},
> > + {"bmi055_gyro", 0},
> > + {}
> > +};
> > +
> > +MODULE_DEVICE_TABLE(i2c, bmg160_i2c_id);
> > +
> > +static struct i2c_driver bmg160_i2c_driver = {
> > + .driver = {
> > + .name = "bmg160_i2c",
> > + .acpi_match_table = ACPI_PTR(bmg160_acpi_match),
> > + .pm = &bmg160_pm_ops,
> > + },
> > + .probe = bmg160_i2c_probe,
> > + .remove = bmg160_i2c_remove,
> > + .id_table = bmg160_i2c_id,
> > +};
> > +module_i2c_driver(bmg160_i2c_driver);
> > +
> > +MODULE_AUTHOR("Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>");
> > +MODULE_LICENSE("GPL v2");
> > +MODULE_DESCRIPTION("BMG160 I2C Gyro driver");
> >
>
>
--
Pengutronix e.K. | |
Industrial Linux Solutions | http://www.pengutronix.de/ |
Peiner Str. 6-8, 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 |
Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 |
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^ permalink raw reply [flat|nested] 12+ messages in thread
* [PATCH v2 6/6] iio: bmg160: Add SPI driver
2015-08-04 11:02 [PATCH v2 0/6] iio: bmg160: Add SPI connection Markus Pargmann
` (4 preceding siblings ...)
2015-08-04 11:02 ` [PATCH v2 5/6] iio: bmg160: Separate i2c and core driver Markus Pargmann
@ 2015-08-04 11:02 ` Markus Pargmann
2015-08-10 13:38 ` Markus Pargmann
2015-08-08 16:12 ` [PATCH v2 0/6] iio: bmg160: Add SPI connection Jonathan Cameron
6 siblings, 1 reply; 12+ messages in thread
From: Markus Pargmann @ 2015-08-04 11:02 UTC (permalink / raw)
To: Jonathan Cameron
Cc: Srinivas Pandruvada, Vlad Dogaru, Paul Bolle, linux-iio,
linux-kernel, kernel, Markus Pargmann
Signed-off-by: Markus Pargmann <mpa@pengutronix.de>
---
drivers/iio/gyro/Kconfig | 11 ++++++++
drivers/iio/gyro/Makefile | 1 +
drivers/iio/gyro/bmg160_spi.c | 60 +++++++++++++++++++++++++++++++++++++++++++
3 files changed, 72 insertions(+)
create mode 100644 drivers/iio/gyro/bmg160_spi.c
diff --git a/drivers/iio/gyro/Kconfig b/drivers/iio/gyro/Kconfig
index 1e6cfff5546f..420aea844216 100644
--- a/drivers/iio/gyro/Kconfig
+++ b/drivers/iio/gyro/Kconfig
@@ -72,6 +72,17 @@ config BMG160_I2C
This driver can also be built as a module. If so, the module
will be called bmg160_i2c.
+config BMG160_SPI
+ tristate "Driver for connection via SPI"
+ depends on SPI
+ select REGMAP_SPI
+ help
+ Say yes here to build support for Bosch BMG160 Tri-axis Gyro Sensor
+ driver connected via SPI. This driver also supports BMI055 gyroscope.
+
+ This driver can also be built as a module. If so, the module
+ will be called bmg160_spi.
+
endif
config HID_SENSOR_GYRO_3D
diff --git a/drivers/iio/gyro/Makefile b/drivers/iio/gyro/Makefile
index 608401041550..f866a4be0667 100644
--- a/drivers/iio/gyro/Makefile
+++ b/drivers/iio/gyro/Makefile
@@ -10,6 +10,7 @@ obj-$(CONFIG_ADIS16260) += adis16260.o
obj-$(CONFIG_ADXRS450) += adxrs450.o
obj-$(CONFIG_BMG160) += bmg160_core.o
obj-$(CONFIG_BMG160_I2C) += bmg160_i2c.o
+obj-$(CONFIG_BMG160_SPI) += bmg160_spi.o
obj-$(CONFIG_HID_SENSOR_GYRO_3D) += hid-sensor-gyro-3d.o
diff --git a/drivers/iio/gyro/bmg160_spi.c b/drivers/iio/gyro/bmg160_spi.c
new file mode 100644
index 000000000000..4dcef65f3476
--- /dev/null
+++ b/drivers/iio/gyro/bmg160_spi.c
@@ -0,0 +1,60 @@
+#include <linux/spi/spi.h>
+#include <linux/regmap.h>
+#include <linux/iio/iio.h>
+#include <linux/module.h>
+
+#include <bmg160.h>
+
+static const struct regmap_config bmg160_regmap_spi_conf = {
+ .reg_bits = 8,
+ .val_bits = 8,
+ .read_flag_mask = 0x80,
+
+ .use_single_rw = true,
+ .cache_type = REGCACHE_NONE,
+};
+
+static int bmg160_spi_probe(struct spi_device *spi)
+{
+ struct regmap *regmap;
+ const struct spi_device_id *id = spi_get_device_id(spi);
+
+ regmap = devm_regmap_init_spi(spi, &bmg160_regmap_spi_conf);
+ if (IS_ERR(regmap)) {
+ dev_err(&spi->dev, "Failed to register spi regmap %d\n",
+ (int)PTR_ERR(regmap));
+ return PTR_ERR(regmap);
+ }
+
+ return bmg160_core_probe(&spi->dev, regmap, spi->irq, id->name);
+}
+
+static int bmg160_spi_remove(struct spi_device *spi)
+{
+ bmg160_core_remove(&spi->dev);
+
+ return 0;
+}
+
+static const struct spi_device_id bmg160_spi_id[] = {
+ {"bmg160", 0},
+ {"bmi055_gyro", 0},
+ {}
+};
+
+MODULE_DEVICE_TABLE(spi, bmg160_spi_id);
+
+static struct spi_driver bmg160_spi_driver = {
+ .driver = {
+ .name = "bmg160_spi",
+ .pm = &bmg160_pm_ops,
+ },
+ .probe = bmg160_spi_probe,
+ .remove = bmg160_spi_remove,
+ .id_table = bmg160_spi_id,
+};
+module_spi_driver(bmg160_spi_driver);
+
+MODULE_AUTHOR("Markus Pargmann <mpa@pengutronix.de>");
+MODULE_LICENSE("GPL v2");
+MODULE_DESCRIPTION("BMG160 SPI Gyro driver");
--
2.1.4
^ permalink raw reply related [flat|nested] 12+ messages in thread
* Re: [PATCH v2 6/6] iio: bmg160: Add SPI driver
2015-08-04 11:02 ` [PATCH v2 6/6] iio: bmg160: Add SPI driver Markus Pargmann
@ 2015-08-10 13:38 ` Markus Pargmann
0 siblings, 0 replies; 12+ messages in thread
From: Markus Pargmann @ 2015-08-10 13:38 UTC (permalink / raw)
To: Jonathan Cameron
Cc: Vlad Dogaru, Paul Bolle, linux-iio, linux-kernel, kernel,
Srinivas Pandruvada
[-- Attachment #1: Type: text/plain, Size: 3934 bytes --]
On Tue, Aug 04, 2015 at 01:02:59PM +0200, Markus Pargmann wrote:
> Signed-off-by: Markus Pargmann <mpa@pengutronix.de>
> ---
> drivers/iio/gyro/Kconfig | 11 ++++++++
> drivers/iio/gyro/Makefile | 1 +
> drivers/iio/gyro/bmg160_spi.c | 60 +++++++++++++++++++++++++++++++++++++++++++
> 3 files changed, 72 insertions(+)
> create mode 100644 drivers/iio/gyro/bmg160_spi.c
>
> diff --git a/drivers/iio/gyro/Kconfig b/drivers/iio/gyro/Kconfig
> index 1e6cfff5546f..420aea844216 100644
> --- a/drivers/iio/gyro/Kconfig
> +++ b/drivers/iio/gyro/Kconfig
> @@ -72,6 +72,17 @@ config BMG160_I2C
> This driver can also be built as a module. If so, the module
> will be called bmg160_i2c.
>
> +config BMG160_SPI
> + tristate "Driver for connection via SPI"
> + depends on SPI
> + select REGMAP_SPI
> + help
> + Say yes here to build support for Bosch BMG160 Tri-axis Gyro Sensor
> + driver connected via SPI. This driver also supports BMI055 gyroscope.
> +
> + This driver can also be built as a module. If so, the module
> + will be called bmg160_spi.
> +
> endif
>
> config HID_SENSOR_GYRO_3D
> diff --git a/drivers/iio/gyro/Makefile b/drivers/iio/gyro/Makefile
> index 608401041550..f866a4be0667 100644
> --- a/drivers/iio/gyro/Makefile
> +++ b/drivers/iio/gyro/Makefile
> @@ -10,6 +10,7 @@ obj-$(CONFIG_ADIS16260) += adis16260.o
> obj-$(CONFIG_ADXRS450) += adxrs450.o
> obj-$(CONFIG_BMG160) += bmg160_core.o
> obj-$(CONFIG_BMG160_I2C) += bmg160_i2c.o
> +obj-$(CONFIG_BMG160_SPI) += bmg160_spi.o
>
> obj-$(CONFIG_HID_SENSOR_GYRO_3D) += hid-sensor-gyro-3d.o
>
> diff --git a/drivers/iio/gyro/bmg160_spi.c b/drivers/iio/gyro/bmg160_spi.c
> new file mode 100644
> index 000000000000..4dcef65f3476
> --- /dev/null
> +++ b/drivers/iio/gyro/bmg160_spi.c
> @@ -0,0 +1,60 @@
> +#include <linux/spi/spi.h>
> +#include <linux/regmap.h>
> +#include <linux/iio/iio.h>
> +#include <linux/module.h>
> +
> +#include <bmg160.h>
> +
> +static const struct regmap_config bmg160_regmap_spi_conf = {
> + .reg_bits = 8,
> + .val_bits = 8,
> + .read_flag_mask = 0x80,
This read_flag_mask seems to be the default for spi. The regmap spi bus
driver already defines this so it is not necessary here, will remove it.
Best regards,
Markus
> +
> + .use_single_rw = true,
> + .cache_type = REGCACHE_NONE,
> +};
> +
> +static int bmg160_spi_probe(struct spi_device *spi)
> +{
> + struct regmap *regmap;
> + const struct spi_device_id *id = spi_get_device_id(spi);
> +
> + regmap = devm_regmap_init_spi(spi, &bmg160_regmap_spi_conf);
> + if (IS_ERR(regmap)) {
> + dev_err(&spi->dev, "Failed to register spi regmap %d\n",
> + (int)PTR_ERR(regmap));
> + return PTR_ERR(regmap);
> + }
> +
> + return bmg160_core_probe(&spi->dev, regmap, spi->irq, id->name);
> +}
> +
> +static int bmg160_spi_remove(struct spi_device *spi)
> +{
> + bmg160_core_remove(&spi->dev);
> +
> + return 0;
> +}
> +
> +static const struct spi_device_id bmg160_spi_id[] = {
> + {"bmg160", 0},
> + {"bmi055_gyro", 0},
> + {}
> +};
> +
> +MODULE_DEVICE_TABLE(spi, bmg160_spi_id);
> +
> +static struct spi_driver bmg160_spi_driver = {
> + .driver = {
> + .name = "bmg160_spi",
> + .pm = &bmg160_pm_ops,
> + },
> + .probe = bmg160_spi_probe,
> + .remove = bmg160_spi_remove,
> + .id_table = bmg160_spi_id,
> +};
> +module_spi_driver(bmg160_spi_driver);
> +
> +MODULE_AUTHOR("Markus Pargmann <mpa@pengutronix.de>");
> +MODULE_LICENSE("GPL v2");
> +MODULE_DESCRIPTION("BMG160 SPI Gyro driver");
> --
> 2.1.4
>
>
>
--
Pengutronix e.K. | |
Industrial Linux Solutions | http://www.pengutronix.de/ |
Peiner Str. 6-8, 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 |
Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 |
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^ permalink raw reply [flat|nested] 12+ messages in thread
* Re: [PATCH v2 0/6] iio: bmg160: Add SPI connection
2015-08-04 11:02 [PATCH v2 0/6] iio: bmg160: Add SPI connection Markus Pargmann
` (5 preceding siblings ...)
2015-08-04 11:02 ` [PATCH v2 6/6] iio: bmg160: Add SPI driver Markus Pargmann
@ 2015-08-08 16:12 ` Jonathan Cameron
6 siblings, 0 replies; 12+ messages in thread
From: Jonathan Cameron @ 2015-08-08 16:12 UTC (permalink / raw)
To: Markus Pargmann
Cc: Srinivas Pandruvada, Vlad Dogaru, Paul Bolle, linux-iio,
linux-kernel, kernel
On 04/08/15 12:02, Markus Pargmann wrote:
> Hi,
>
> bmg160 and bmi055 can be used via I2C and SPI. This series converts the driver
> to regmap and splits core driver and I2C/SPI.
>
> Changes in v2:
> - Added the id->name from the SPI driver to be used as iio device name
> - Fixed Kconfig in patch 2 to add selects for REGMAP_I2C
> - Fixed regmap configs to be static const
>
> Best regards,
>
> Markus
I am more or less happy with these, but want a reviewed-by/acked-by from
Srinivas.
>
>
> Markus Pargmann (6):
> iio: bmg160: Use i2c regmap instead of direct i2c access
> iio: bmg160: Remove i2c_client from data struct
> iio: bmg160: Use generic dev_drvdata
> iio: bmg160: Remove remaining uses of i2c_client
> iio: bmg160: Separate i2c and core driver
> iio: bmg160: Add SPI driver
>
> drivers/iio/gyro/Kconfig | 29 ++-
> drivers/iio/gyro/Makefile | 4 +-
> drivers/iio/gyro/bmg160.h | 10 +
> drivers/iio/gyro/{bmg160.c => bmg160_core.c} | 356 +++++++++++----------------
> drivers/iio/gyro/bmg160_i2c.c | 73 ++++++
> drivers/iio/gyro/bmg160_spi.c | 60 +++++
> 6 files changed, 311 insertions(+), 221 deletions(-)
> create mode 100644 drivers/iio/gyro/bmg160.h
> rename drivers/iio/gyro/{bmg160.c => bmg160_core.c} (74%)
> create mode 100644 drivers/iio/gyro/bmg160_i2c.c
> create mode 100644 drivers/iio/gyro/bmg160_spi.c
>
^ permalink raw reply [flat|nested] 12+ messages in thread