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Subject[PATCH v2 1/9] iio: imu: adis16480: initialize adis_data statically
Date
This change overrides commit 380b107bbf944 ("iio: adis: Introduce timeouts
structure"). It removes the memory allocation and moves the 'adis_data'
information to be static on the chip_info struct.

Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com>
---

Changelog v1 -> v2:
* initialize 'adis_data' statically on adis16480,adis16136 & adis16400
* split 'iio: imu: adis: Refactor adis_initial_startup' patch
- new: 'iio: imu: adis: add unlocked __adis_initial_startup()'
- new: 'iio: imu: adis: add support product ID check in adis_initial_startup'
- modified: 'iio: imu: adis: Refactor adis_initial_startup'
* added 'prod_id' field together with 'prod_id_reg' on 'adis_data'
each device that wants to use the 'prod_id_reg' must also provide an
expected 'prod_id' value

drivers/iio/imu/adis16480.c | 140 ++++++++++++++++--------------------
1 file changed, 62 insertions(+), 78 deletions(-)

diff --git a/drivers/iio/imu/adis16480.c b/drivers/iio/imu/adis16480.c
index dac87f1001fd..4c4de1b62769 100644
--- a/drivers/iio/imu/adis16480.c
+++ b/drivers/iio/imu/adis16480.c
@@ -138,7 +138,7 @@ struct adis16480_chip_info {
unsigned int max_dec_rate;
const unsigned int *filter_freqs;
bool has_pps_clk_mode;
- const struct adis_timeout *timeouts;
+ const struct adis_data adis_data;
};

enum adis16480_int_pin {
@@ -796,6 +796,55 @@ enum adis16480_variant {
ADIS16497_3,
};

+#define ADIS16480_DIAG_STAT_XGYRO_FAIL 0
+#define ADIS16480_DIAG_STAT_YGYRO_FAIL 1
+#define ADIS16480_DIAG_STAT_ZGYRO_FAIL 2
+#define ADIS16480_DIAG_STAT_XACCL_FAIL 3
+#define ADIS16480_DIAG_STAT_YACCL_FAIL 4
+#define ADIS16480_DIAG_STAT_ZACCL_FAIL 5
+#define ADIS16480_DIAG_STAT_XMAGN_FAIL 8
+#define ADIS16480_DIAG_STAT_YMAGN_FAIL 9
+#define ADIS16480_DIAG_STAT_ZMAGN_FAIL 10
+#define ADIS16480_DIAG_STAT_BARO_FAIL 11
+
+static const char * const adis16480_status_error_msgs[] = {
+ [ADIS16480_DIAG_STAT_XGYRO_FAIL] = "X-axis gyroscope self-test failure",
+ [ADIS16480_DIAG_STAT_YGYRO_FAIL] = "Y-axis gyroscope self-test failure",
+ [ADIS16480_DIAG_STAT_ZGYRO_FAIL] = "Z-axis gyroscope self-test failure",
+ [ADIS16480_DIAG_STAT_XACCL_FAIL] = "X-axis accelerometer self-test failure",
+ [ADIS16480_DIAG_STAT_YACCL_FAIL] = "Y-axis accelerometer self-test failure",
+ [ADIS16480_DIAG_STAT_ZACCL_FAIL] = "Z-axis accelerometer self-test failure",
+ [ADIS16480_DIAG_STAT_XMAGN_FAIL] = "X-axis magnetometer self-test failure",
+ [ADIS16480_DIAG_STAT_YMAGN_FAIL] = "Y-axis magnetometer self-test failure",
+ [ADIS16480_DIAG_STAT_ZMAGN_FAIL] = "Z-axis magnetometer self-test failure",
+ [ADIS16480_DIAG_STAT_BARO_FAIL] = "Barometer self-test failure",
+};
+
+static int adis16480_enable_irq(struct adis *adis, bool enable);
+
+#define ADIS16480_DATA(_timeouts) \
+{ \
+ .diag_stat_reg = ADIS16480_REG_DIAG_STS, \
+ .glob_cmd_reg = ADIS16480_REG_GLOB_CMD, \
+ .has_paging = true, \
+ .read_delay = 5, \
+ .write_delay = 5, \
+ .self_test_mask = BIT(1), \
+ .status_error_msgs = adis16480_status_error_msgs, \
+ .status_error_mask = BIT(ADIS16480_DIAG_STAT_XGYRO_FAIL) | \
+ BIT(ADIS16480_DIAG_STAT_YGYRO_FAIL) | \
+ BIT(ADIS16480_DIAG_STAT_ZGYRO_FAIL) | \
+ BIT(ADIS16480_DIAG_STAT_XACCL_FAIL) | \
+ BIT(ADIS16480_DIAG_STAT_YACCL_FAIL) | \
+ BIT(ADIS16480_DIAG_STAT_ZACCL_FAIL) | \
+ BIT(ADIS16480_DIAG_STAT_XMAGN_FAIL) | \
+ BIT(ADIS16480_DIAG_STAT_YMAGN_FAIL) | \
+ BIT(ADIS16480_DIAG_STAT_ZMAGN_FAIL) | \
+ BIT(ADIS16480_DIAG_STAT_BARO_FAIL), \
+ .enable_irq = adis16480_enable_irq, \
+ .timeouts = (_timeouts), \
+}
+
static const struct adis_timeout adis16485_timeouts = {
.reset_ms = 560,
.sw_reset_ms = 120,
@@ -838,7 +887,7 @@ static const struct adis16480_chip_info adis16480_chip_info[] = {
.int_clk = 2460000,
.max_dec_rate = 2048,
.filter_freqs = adis16480_def_filter_freqs,
- .timeouts = &adis16485_timeouts,
+ .adis_data = ADIS16480_DATA(&adis16485_timeouts),
},
[ADIS16480] = {
.channels = adis16480_channels,
@@ -851,7 +900,7 @@ static const struct adis16480_chip_info adis16480_chip_info[] = {
.int_clk = 2460000,
.max_dec_rate = 2048,
.filter_freqs = adis16480_def_filter_freqs,
- .timeouts = &adis16480_timeouts,
+ .adis_data = ADIS16480_DATA(&adis16480_timeouts),
},
[ADIS16485] = {
.channels = adis16485_channels,
@@ -864,7 +913,7 @@ static const struct adis16480_chip_info adis16480_chip_info[] = {
.int_clk = 2460000,
.max_dec_rate = 2048,
.filter_freqs = adis16480_def_filter_freqs,
- .timeouts = &adis16485_timeouts,
+ .adis_data = ADIS16480_DATA(&adis16485_timeouts),
},
[ADIS16488] = {
.channels = adis16480_channels,
@@ -877,7 +926,7 @@ static const struct adis16480_chip_info adis16480_chip_info[] = {
.int_clk = 2460000,
.max_dec_rate = 2048,
.filter_freqs = adis16480_def_filter_freqs,
- .timeouts = &adis16485_timeouts,
+ .adis_data = ADIS16480_DATA(&adis16485_timeouts),
},
[ADIS16490] = {
.channels = adis16485_channels,
@@ -891,7 +940,7 @@ static const struct adis16480_chip_info adis16480_chip_info[] = {
.max_dec_rate = 4250,
.filter_freqs = adis16495_def_filter_freqs,
.has_pps_clk_mode = true,
- .timeouts = &adis16495_timeouts,
+ .adis_data = ADIS16480_DATA(&adis16495_timeouts),
},
[ADIS16495_1] = {
.channels = adis16485_channels,
@@ -905,7 +954,7 @@ static const struct adis16480_chip_info adis16480_chip_info[] = {
.max_dec_rate = 4250,
.filter_freqs = adis16495_def_filter_freqs,
.has_pps_clk_mode = true,
- .timeouts = &adis16495_1_timeouts,
+ .adis_data = ADIS16480_DATA(&adis16495_1_timeouts),
},
[ADIS16495_2] = {
.channels = adis16485_channels,
@@ -919,7 +968,7 @@ static const struct adis16480_chip_info adis16480_chip_info[] = {
.max_dec_rate = 4250,
.filter_freqs = adis16495_def_filter_freqs,
.has_pps_clk_mode = true,
- .timeouts = &adis16495_1_timeouts,
+ .adis_data = ADIS16480_DATA(&adis16495_1_timeouts),
},
[ADIS16495_3] = {
.channels = adis16485_channels,
@@ -933,7 +982,7 @@ static const struct adis16480_chip_info adis16480_chip_info[] = {
.max_dec_rate = 4250,
.filter_freqs = adis16495_def_filter_freqs,
.has_pps_clk_mode = true,
- .timeouts = &adis16495_1_timeouts,
+ .adis_data = ADIS16480_DATA(&adis16495_1_timeouts),
},
[ADIS16497_1] = {
.channels = adis16485_channels,
@@ -947,7 +996,7 @@ static const struct adis16480_chip_info adis16480_chip_info[] = {
.max_dec_rate = 4250,
.filter_freqs = adis16495_def_filter_freqs,
.has_pps_clk_mode = true,
- .timeouts = &adis16495_1_timeouts,
+ .adis_data = ADIS16480_DATA(&adis16495_1_timeouts),
},
[ADIS16497_2] = {
.channels = adis16485_channels,
@@ -961,7 +1010,7 @@ static const struct adis16480_chip_info adis16480_chip_info[] = {
.max_dec_rate = 4250,
.filter_freqs = adis16495_def_filter_freqs,
.has_pps_clk_mode = true,
- .timeouts = &adis16495_1_timeouts,
+ .adis_data = ADIS16480_DATA(&adis16495_1_timeouts),
},
[ADIS16497_3] = {
.channels = adis16485_channels,
@@ -975,7 +1024,7 @@ static const struct adis16480_chip_info adis16480_chip_info[] = {
.max_dec_rate = 4250,
.filter_freqs = adis16495_def_filter_freqs,
.has_pps_clk_mode = true,
- .timeouts = &adis16495_1_timeouts,
+ .adis_data = ADIS16480_DATA(&adis16495_1_timeouts),
},
};

@@ -1048,53 +1097,6 @@ static int adis16480_initial_setup(struct iio_dev *indio_dev)
return 0;
}

-#define ADIS16480_DIAG_STAT_XGYRO_FAIL 0
-#define ADIS16480_DIAG_STAT_YGYRO_FAIL 1
-#define ADIS16480_DIAG_STAT_ZGYRO_FAIL 2
-#define ADIS16480_DIAG_STAT_XACCL_FAIL 3
-#define ADIS16480_DIAG_STAT_YACCL_FAIL 4
-#define ADIS16480_DIAG_STAT_ZACCL_FAIL 5
-#define ADIS16480_DIAG_STAT_XMAGN_FAIL 8
-#define ADIS16480_DIAG_STAT_YMAGN_FAIL 9
-#define ADIS16480_DIAG_STAT_ZMAGN_FAIL 10
-#define ADIS16480_DIAG_STAT_BARO_FAIL 11
-
-static const char * const adis16480_status_error_msgs[] = {
- [ADIS16480_DIAG_STAT_XGYRO_FAIL] = "X-axis gyroscope self-test failure",
- [ADIS16480_DIAG_STAT_YGYRO_FAIL] = "Y-axis gyroscope self-test failure",
- [ADIS16480_DIAG_STAT_ZGYRO_FAIL] = "Z-axis gyroscope self-test failure",
- [ADIS16480_DIAG_STAT_XACCL_FAIL] = "X-axis accelerometer self-test failure",
- [ADIS16480_DIAG_STAT_YACCL_FAIL] = "Y-axis accelerometer self-test failure",
- [ADIS16480_DIAG_STAT_ZACCL_FAIL] = "Z-axis accelerometer self-test failure",
- [ADIS16480_DIAG_STAT_XMAGN_FAIL] = "X-axis magnetometer self-test failure",
- [ADIS16480_DIAG_STAT_YMAGN_FAIL] = "Y-axis magnetometer self-test failure",
- [ADIS16480_DIAG_STAT_ZMAGN_FAIL] = "Z-axis magnetometer self-test failure",
- [ADIS16480_DIAG_STAT_BARO_FAIL] = "Barometer self-test failure",
-};
-
-static const struct adis_data adis16480_data = {
- .diag_stat_reg = ADIS16480_REG_DIAG_STS,
- .glob_cmd_reg = ADIS16480_REG_GLOB_CMD,
- .has_paging = true,
-
- .read_delay = 5,
- .write_delay = 5,
-
- .status_error_msgs = adis16480_status_error_msgs,
- .status_error_mask = BIT(ADIS16480_DIAG_STAT_XGYRO_FAIL) |
- BIT(ADIS16480_DIAG_STAT_YGYRO_FAIL) |
- BIT(ADIS16480_DIAG_STAT_ZGYRO_FAIL) |
- BIT(ADIS16480_DIAG_STAT_XACCL_FAIL) |
- BIT(ADIS16480_DIAG_STAT_YACCL_FAIL) |
- BIT(ADIS16480_DIAG_STAT_ZACCL_FAIL) |
- BIT(ADIS16480_DIAG_STAT_XMAGN_FAIL) |
- BIT(ADIS16480_DIAG_STAT_YMAGN_FAIL) |
- BIT(ADIS16480_DIAG_STAT_ZMAGN_FAIL) |
- BIT(ADIS16480_DIAG_STAT_BARO_FAIL),
-
- .enable_irq = adis16480_enable_irq,
-};
-
static int adis16480_config_irq_pin(struct device_node *of_node,
struct adis16480 *st)
{
@@ -1245,22 +1247,6 @@ static int adis16480_get_ext_clocks(struct adis16480 *st)
return 0;
}

-static struct adis_data *adis16480_adis_data_alloc(struct adis16480 *st,
- struct device *dev)
-{
- struct adis_data *data;
-
- data = devm_kmalloc(dev, sizeof(struct adis_data), GFP_KERNEL);
- if (!data)
- return ERR_PTR(-ENOMEM);
-
- memcpy(data, &adis16480_data, sizeof(*data));
-
- data->timeouts = st->chip_info->timeouts;
-
- return data;
-}
-
static int adis16480_probe(struct spi_device *spi)
{
const struct spi_device_id *id = spi_get_device_id(spi);
@@ -1285,9 +1271,7 @@ static int adis16480_probe(struct spi_device *spi)
indio_dev->info = &adis16480_info;
indio_dev->modes = INDIO_DIRECT_MODE;

- adis16480_data = adis16480_adis_data_alloc(st, &spi->dev);
- if (IS_ERR(adis16480_data))
- return PTR_ERR(adis16480_data);
+ adis16480_data = &st->chip_info->adis_data;

ret = adis_init(&st->adis, indio_dev, spi, adis16480_data);
if (ret)
--
2.20.1
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