mirrors/linux
2
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git synced 2026-05-10 23:33:01 -04:00
Code Issues Packages Projects Releases Wiki Activity

iio: sx9324: Add precharge internal resistance setting

Browse Source 
Add ability to set the precharge internal resistance from the device
tree.

Signed-off-by: Gwendal Grignou <gwendal@chromium.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Link: https://lore.kernel.org/r/20220429220144.1476049-5-gwendal@chromium.org
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
This commit is contained in:
Gwendal Grignou
2022-04-29 15:01:38 -07:00
committed by Jonathan Cameron
parent 057e45db96
commit d2fb946019
1 changed files with 13 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

13
drivers/iio/proximity/sx9324.c
View File

@@ -72,6 +72,7 @@
#define SX9324_REG_AFE_CTRL8 0x2c
#define SX9324_REG_AFE_CTRL8_RESERVED 0x10
#define SX9324_REG_AFE_CTRL8_RESFILTIN_4KOHM 0x02
#define SX9324_REG_AFE_CTRL8_RESFILTIN_MASK GENMASK(3, 0)
#define SX9324_REG_AFE_CTRL9 0x2d
#define SX9324_REG_AFE_CTRL9_AGAIN_1 0x08
@@ -909,6 +910,18 @@ sx9324_get_default_reg(struct device *dev, int idx,
reg_def->def |= FIELD_PREP(SX9324_REG_AFE_CTRL4_RESOLUTION_MASK,
raw);
break;
case SX9324_REG_AFE_CTRL8:
ret = device_property_read_u32(dev,
"semtech,input-precharge-resistor-ohms",
&raw);
if (ret)
break;
reg_def->def &= ~SX9324_REG_AFE_CTRL8_RESFILTIN_MASK;
reg_def->def |= FIELD_PREP(SX9324_REG_AFE_CTRL8_RESFILTIN_MASK,
raw / 2000);
break;
case SX9324_REG_ADV_CTRL5:
ret = device_property_read_u32(dev, "semtech,startup-sensor",
&start);