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iio: magnetometer: yas530: Add volatile registers to "chip_info"

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Add volatile registers to the "chip_info" structure to ease the handling of
different YAS variants.

Signed-off-by: Jakob Hauser <jahau@rocketmail.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/aeba3877933ba9d2c920b459a9037d9186c15a4f.1660337264.git.jahau@rocketmail.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
This commit is contained in:
Jakob Hauser 2022-08-12 23:54:15 +02:00 committed by Jonathan Cameron
parent a70f60e5b6
commit dd9bd44f87
1 changed files with 35 additions and 3 deletions
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38
drivers/iio/magnetometer/yamaha-yas530.c
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@ -102,6 +102,11 @@ enum chip_ids {
yas533,
};
static const int yas530_volatile_reg[] = {
YAS530_ACTUATE_INIT_COIL,
YAS530_MEASURE,
};
struct yas5xx_calibration {
/* Linearization calibration x, y1, y2 */
s32 r[3];
@ -123,11 +128,15 @@ struct yas5xx;
* @devid: device ID number
* @product_name: product name of the YAS variant
* @version_names: version letters or namings
* @volatile_reg: device-specific volatile registers
* @volatile_reg_qty: quantity of device-specific volatile registers
*/
struct yas5xx_chip_info {
unsigned int devid;
char *product_name;
char *version_names[2];
const int *volatile_reg;
int volatile_reg_qty;
};
/**
@ -616,9 +625,26 @@ static const struct iio_info yas5xx_info = {
static bool yas5xx_volatile_reg(struct device *dev, unsigned int reg)
{
return reg == YAS530_ACTUATE_INIT_COIL ||
reg == YAS530_MEASURE ||
(reg >= YAS5XX_MEASURE_DATA && reg < YAS5XX_MEASURE_DATA + 8);
struct iio_dev *indio_dev = dev_get_drvdata(dev);
struct yas5xx *yas5xx = iio_priv(indio_dev);
const struct yas5xx_chip_info *ci = yas5xx->chip_info;
int reg_qty;
int i;
if (reg >= YAS5XX_MEASURE_DATA && reg < YAS5XX_MEASURE_DATA + 8)
return true;
/*
* YAS versions share different registers on the same address,
* need to differentiate.
*/
reg_qty = ci->volatile_reg_qty;
for (i = 0; i < reg_qty; i++) {
if (reg == ci->volatile_reg[i])
return true;
}
return false;
}
/* TODO: enable regmap cache, using mark dirty and sync at runtime resume */
@ -923,16 +949,22 @@ static const struct yas5xx_chip_info yas5xx_chip_info_tbl[] = {
.devid = YAS530_DEVICE_ID,
.product_name = "YAS530 MS-3E",
.version_names = { "A", "B" },
.volatile_reg = yas530_volatile_reg,
.volatile_reg_qty = ARRAY_SIZE(yas530_volatile_reg),
},
[yas532] = {
.devid = YAS532_DEVICE_ID,
.product_name = "YAS532 MS-3R",
.version_names = { "AB", "AC" },
.volatile_reg = yas530_volatile_reg,
.volatile_reg_qty = ARRAY_SIZE(yas530_volatile_reg),
},
[yas533] = {
.devid = YAS532_DEVICE_ID,
.product_name = "YAS533 MS-3F",
.version_names = { "AB", "AC" },
.volatile_reg = yas530_volatile_reg,
.volatile_reg_qty = ARRAY_SIZE(yas530_volatile_reg),
},
};