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Message-ID: <522793A9.8040300@st.com>
Date: Wed, 4 Sep 2013 22:10:17 +0200
From: Denis CIOCCA <denis.ciocca@...com>
To: Lee Jones <lee.jones@...aro.org>
Cc: "linux-arm-kernel@...ts.infradead.org"
<linux-arm-kernel@...ts.infradead.org>,
"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
"jic23@....ac.uk" <jic23@....ac.uk>,
"arnd@...db.de" <arnd@...db.de>,
"linus.walleij@...aro.org" <linus.walleij@...aro.org>,
"linux-iio@...r.kernel.org" <linux-iio@...r.kernel.org>
Subject: Re: [PATCH 05/11] iio: pressure-core: st: Describe LPS331AP defines
by name
Hi Lee,
> They're currently named *_1_*, for 'Sensor 1', but the code will be much
> more readable if we use the naming convention *_LPS331AP_* instead.
You are right, but the reason is to maintain the same structure of the
other sensors drivers (like accel, gyro and magn). Often some sensors
can use the same data and using 1,2,... I think it's more general.
Denis
> Signed-off-by: Lee Jones <lee.jones@...aro.org>
> ---
> drivers/iio/pressure/st_pressure_core.c | 90 ++++++++++++++++-----------------
> 1 file changed, 44 insertions(+), 46 deletions(-)
>
> diff --git a/drivers/iio/pressure/st_pressure_core.c b/drivers/iio/pressure/st_pressure_core.c
> index 9c343b4..becfb25 100644
> --- a/drivers/iio/pressure/st_pressure_core.c
> +++ b/drivers/iio/pressure/st_pressure_core.c
> @@ -31,92 +31,90 @@
> #define ST_PRESS_MBAR_TO_KPASCAL(x) (x * 10)
> #define ST_PRESS_NUMBER_DATA_CHANNELS 1
>
> -/* DEFAULT VALUE FOR SENSORS */
> -#define ST_PRESS_DEFAULT_OUT_XL_ADDR 0x28
> -#define ST_TEMP_DEFAULT_OUT_L_ADDR 0x2b
> -
> /* FULLSCALE */
> #define ST_PRESS_FS_AVL_1260MB 1260
>
> -/* CUSTOM VALUES FOR SENSOR 1 */
> -#define ST_PRESS_1_WAI_EXP 0xbb
> -#define ST_PRESS_1_ODR_ADDR 0x20
> -#define ST_PRESS_1_ODR_MASK 0x70
> -#define ST_PRESS_1_ODR_AVL_1HZ_VAL 0x01
> -#define ST_PRESS_1_ODR_AVL_7HZ_VAL 0x05
> -#define ST_PRESS_1_ODR_AVL_13HZ_VAL 0x06
> -#define ST_PRESS_1_ODR_AVL_25HZ_VAL 0x07
> -#define ST_PRESS_1_PW_ADDR 0x20
> -#define ST_PRESS_1_PW_MASK 0x80
> -#define ST_PRESS_1_FS_ADDR 0x23
> -#define ST_PRESS_1_FS_MASK 0x30
> -#define ST_PRESS_1_FS_AVL_1260_VAL 0x00
> -#define ST_PRESS_1_FS_AVL_1260_GAIN ST_PRESS_MBAR_TO_KPASCAL(244141)
> -#define ST_PRESS_1_FS_AVL_TEMP_GAIN 2083000
> -#define ST_PRESS_1_BDU_ADDR 0x20
> -#define ST_PRESS_1_BDU_MASK 0x04
> -#define ST_PRESS_1_DRDY_IRQ_ADDR 0x22
> -#define ST_PRESS_1_DRDY_IRQ_MASK 0x04
> -#define ST_PRESS_1_MULTIREAD_BIT true
> -#define ST_PRESS_1_TEMP_OFFSET 42500
> +/* CUSTOM VALUES FOR LPS331AP SENSOR */
> +#define ST_PRESS_LPS331AP_WAI_EXP 0xbb
> +#define ST_PRESS_LPS331AP_ODR_ADDR 0x20
> +#define ST_PRESS_LPS331AP_ODR_MASK 0x70
> +#define ST_PRESS_LPS331AP_ODR_AVL_1HZ_VAL 0x01
> +#define ST_PRESS_LPS331AP_ODR_AVL_7HZ_VAL 0x05
> +#define ST_PRESS_LPS331AP_ODR_AVL_13HZ_VAL 0x06
> +#define ST_PRESS_LPS331AP_ODR_AVL_25HZ_VAL 0x07
> +#define ST_PRESS_LPS331AP_PW_ADDR 0x20
> +#define ST_PRESS_LPS331AP_PW_MASK 0x80
> +#define ST_PRESS_LPS331AP_FS_ADDR 0x23
> +#define ST_PRESS_LPS331AP_FS_MASK 0x30
> +#define ST_PRESS_LPS331AP_FS_AVL_1260_VAL 0x00
> +#define ST_PRESS_LPS331AP_FS_AVL_1260_GAIN ST_PRESS_MBAR_TO_KPASCAL(244141)
> +#define ST_PRESS_LPS331AP_FS_AVL_TEMP_GAIN 2083000
> +#define ST_PRESS_LPS331AP_BDU_ADDR 0x20
> +#define ST_PRESS_LPS331AP_BDU_MASK 0x04
> +#define ST_PRESS_LPS331AP_DRDY_IRQ_ADDR 0x22
> +#define ST_PRESS_LPS331AP_DRDY_IRQ_MASK 0x04
> +#define ST_PRESS_LPS331AP_MULTIREAD_BIT true
> +#define ST_PRESS_LPS331AP_TEMP_OFFSET 42500
> +#define ST_PRESS_LPS331AP_OUT_XL_ADDR 0x28
> +#define ST_TEMP_LPS331AP_OUT_L_ADDR 0x2b
>
> static const struct iio_chan_spec st_press_channels[] = {
> ST_SENSORS_LSM_CHANNELS(IIO_PRESSURE,
> BIT(IIO_CHAN_INFO_RAW) | BIT(IIO_CHAN_INFO_SCALE),
> ST_SENSORS_SCAN_X, 0, IIO_NO_MOD, 'u', IIO_LE, 24, 24,
> - ST_PRESS_DEFAULT_OUT_XL_ADDR),
> + ST_PRESS_LPS331AP_OUT_XL_ADDR),
> ST_SENSORS_LSM_CHANNELS(IIO_TEMP,
> BIT(IIO_CHAN_INFO_RAW) | BIT(IIO_CHAN_INFO_SCALE) |
> BIT(IIO_CHAN_INFO_OFFSET),
> -1, 0, IIO_NO_MOD, 's', IIO_LE, 16, 16,
> - ST_TEMP_DEFAULT_OUT_L_ADDR),
> + ST_TEMP_LPS331AP_OUT_L_ADDR),
> IIO_CHAN_SOFT_TIMESTAMP(1)
> };
>
> static const struct st_sensors st_press_sensors[] = {
> {
> - .wai = ST_PRESS_1_WAI_EXP,
> + .wai = ST_PRESS_LPS331AP_WAI_EXP,
> .sensors_supported = {
> [0] = LPS331AP_PRESS_DEV_NAME,
> },
> .ch = (struct iio_chan_spec *)st_press_channels,
> .odr = {
> - .addr = ST_PRESS_1_ODR_ADDR,
> - .mask = ST_PRESS_1_ODR_MASK,
> + .addr = ST_PRESS_LPS331AP_ODR_ADDR,
> + .mask = ST_PRESS_LPS331AP_ODR_MASK,
> .odr_avl = {
> - { 1, ST_PRESS_1_ODR_AVL_1HZ_VAL, },
> - { 7, ST_PRESS_1_ODR_AVL_7HZ_VAL, },
> - { 13, ST_PRESS_1_ODR_AVL_13HZ_VAL, },
> - { 25, ST_PRESS_1_ODR_AVL_25HZ_VAL, },
> + { 1, ST_PRESS_LPS331AP_ODR_AVL_1HZ_VAL, },
> + { 7, ST_PRESS_LPS331AP_ODR_AVL_7HZ_VAL, },
> + { 13, ST_PRESS_LPS331AP_ODR_AVL_13HZ_VAL, },
> + { 25, ST_PRESS_LPS331AP_ODR_AVL_25HZ_VAL, },
> },
> },
> .pw = {
> - .addr = ST_PRESS_1_PW_ADDR,
> - .mask = ST_PRESS_1_PW_MASK,
> + .addr = ST_PRESS_LPS331AP_PW_ADDR,
> + .mask = ST_PRESS_LPS331AP_PW_MASK,
> .value_on = ST_SENSORS_DEFAULT_POWER_ON_VALUE,
> .value_off = ST_SENSORS_DEFAULT_POWER_OFF_VALUE,
> },
> .fs = {
> - .addr = ST_PRESS_1_FS_ADDR,
> - .mask = ST_PRESS_1_FS_MASK,
> + .addr = ST_PRESS_LPS331AP_FS_ADDR,
> + .mask = ST_PRESS_LPS331AP_FS_MASK,
> .fs_avl = {
> [0] = {
> .num = ST_PRESS_FS_AVL_1260MB,
> - .value = ST_PRESS_1_FS_AVL_1260_VAL,
> - .gain = ST_PRESS_1_FS_AVL_1260_GAIN,
> - .gain2 = ST_PRESS_1_FS_AVL_TEMP_GAIN,
> + .value = ST_PRESS_LPS331AP_FS_AVL_1260_VAL,
> + .gain = ST_PRESS_LPS331AP_FS_AVL_1260_GAIN,
> + .gain2 = ST_PRESS_LPS331AP_FS_AVL_TEMP_GAIN,
> },
> },
> },
> .bdu = {
> - .addr = ST_PRESS_1_BDU_ADDR,
> - .mask = ST_PRESS_1_BDU_MASK,
> + .addr = ST_PRESS_LPS331AP_BDU_ADDR,
> + .mask = ST_PRESS_LPS331AP_BDU_MASK,
> },
> .drdy_irq = {
> - .addr = ST_PRESS_1_DRDY_IRQ_ADDR,
> - .mask = ST_PRESS_1_DRDY_IRQ_MASK,
> + .addr = ST_PRESS_LPS331AP_DRDY_IRQ_ADDR,
> + .mask = ST_PRESS_LPS331AP_DRDY_IRQ_MASK,
> },
> - .multi_read_bit = ST_PRESS_1_MULTIREAD_BIT,
> + .multi_read_bit = ST_PRESS_LPS331AP_MULTIREAD_BIT,
> .bootime = 2,
> },
> };
--
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