iio: sx9324: Fix default precharge internal resistance register

Fix the default value for the register that set the resistance:
it has to be 0x10 per datasheet.

Fixes: 4c18a890dff8d ("iio:proximity:sx9324: Add SX9324 support")
Cc: stable@vger.kernel.org
Signed-off-by: Gwendal Grignou <gwendal@chromium.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Link: https://lore.kernel.org/r/20220406165011.10202-2-gwendal@chromium.org
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

diff --git a/drivers/iio/proximity/sx9324.c b/drivers/iio/proximity/sx9324.c
index 6e90917e3e3671e3e358c73c63a3b7dedd0d7251..70c37f664f6da7c2cf2cba5a2007e0836375d5e3 100644 (file)
--- a/drivers/iio/proximity/sx9324.c
+++ b/drivers/iio/proximity/sx9324.c
@@ -70,7 +70,8 @@
 #define SX9324_REG_AFE_PH2             0x2a
 #define SX9324_REG_AFE_PH3             0x2b
 #define SX9324_REG_AFE_CTRL8           0x2c
-#define SX9324_REG_AFE_CTRL8_RESFILTN_4KOHM 0x02
+#define SX9324_REG_AFE_CTRL8_RESERVED  0x10
+#define SX9324_REG_AFE_CTRL8_RESFILTIN_4KOHM 0x02
 #define SX9324_REG_AFE_CTRL9           0x2d
 #define SX9324_REG_AFE_CTRL9_AGAIN_1   0x08
 
@@ -795,7 +796,8 @@ static const struct sx_common_reg_default sx9324_default_regs[] = {
        { SX9324_REG_AFE_PH2, 0x1a },
        { SX9324_REG_AFE_PH3, 0x16 },
 
-       { SX9324_REG_AFE_CTRL8, SX9324_REG_AFE_CTRL8_RESFILTN_4KOHM },
+       { SX9324_REG_AFE_CTRL8, SX9324_REG_AFE_CTRL8_RESERVED |
+               SX9324_REG_AFE_CTRL8_RESFILTIN_4KOHM },
        { SX9324_REG_AFE_CTRL9, SX9324_REG_AFE_CTRL9_AGAIN_1 },
 
        { SX9324_REG_PROX_CTRL0,