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iio: sx9324: Add setting for CS idle mode

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Based on device tree setting, set the CS idle mode.

Reviewed-by: Gwendal Grignou <gwendal@chromium.org>
Signed-off-by: Stephen Boyd <swboyd@chromium.org>
Link: https://lore.kernel.org/r/20220503193937.3794477-3-swboyd@chromium.org
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
This commit is contained in:
Stephen Boyd 2022-05-03 12:39:37 -07:00 committed by Jonathan Cameron
parent f24333103e
commit 68d07a7bc3
1 changed files with 16 additions and 0 deletions
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16
drivers/iio/proximity/sx9324.c
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@ -57,6 +57,11 @@
GENMASK(SX9324_REG_AFE_CTRL0_RINT_SHIFT + 1, \
SX9324_REG_AFE_CTRL0_RINT_SHIFT)
#define SX9324_REG_AFE_CTRL0_RINT_LOWEST 0x00
#define SX9324_REG_AFE_CTRL0_CSIDLE_SHIFT 4
#define SX9324_REG_AFE_CTRL0_CSIDLE_MASK \
GENMASK(SX9324_REG_AFE_CTRL0_CSIDLE_SHIFT + 1, \
SX9324_REG_AFE_CTRL0_CSIDLE_SHIFT)
#define SX9324_REG_AFE_CTRL0_RINT_LOWEST 0x00
#define SX9324_REG_AFE_CTRL1 0x21
#define SX9324_REG_AFE_CTRL2 0x22
#define SX9324_REG_AFE_CTRL3 0x23
@ -872,6 +877,8 @@ sx9324_get_default_reg(struct device *dev, int idx,
{
static const char * const sx9324_rints[] = { "lowest", "low", "high",
"highest" };
static const char * const sx9324_csidle[] = { "hi-z", "hi-z", "gnd",
"vdd" };
#define SX9324_PIN_DEF "semtech,ph0-pin"
#define SX9324_RESOLUTION_DEF "semtech,ph01-resolution"
#define SX9324_PROXRAW_DEF "semtech,ph01-proxraw-strength"
@ -901,6 +908,15 @@ sx9324_get_default_reg(struct device *dev, int idx,
reg_def->def = raw;
break;
case SX9324_REG_AFE_CTRL0:
ret = device_property_read_string(dev,
"semtech,cs-idle-sleep", &res);
if (!ret)
ret = match_string(sx9324_csidle, ARRAY_SIZE(sx9324_csidle), res);
if (ret >= 0) {
reg_def->def &= ~SX9324_REG_AFE_CTRL0_CSIDLE_MASK;
reg_def->def |= ret << SX9324_REG_AFE_CTRL0_CSIDLE_SHIFT;
}
ret = device_property_read_string(dev,
"semtech,int-comp-resistor", &res);
if (ret)