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Message-ID: <20200214142817.3bd22a15@archlinux>
Date: Fri, 14 Feb 2020 14:28:17 +0000
From: Jonathan Cameron <jic23@...nel.org>
To: Alexandru Ardelean <alexandru.ardelean@...log.com>
Cc: <linux-iio@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
<nuno.sa@...log.com>
Subject: Re: [PATCH v2 1/9] iio: imu: adis16480: initialize adis_data
statically
On Mon, 10 Feb 2020 15:25:58 +0200
Alexandru Ardelean <alexandru.ardelean@...log.com> wrote:
> 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@...log.com>
Applied to the togreg branch of iio.git and pushed out as testing for the
autobuilders to poke at it.
Thanks,
Jonathan
> ---
>
> 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)
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