[PATCH V4 3/7] iio: adc: Fine tune the scale calibration values

From: Cixi Geng
Date: Tue Apr 19 2022 - 10:26:08 EST


From: Cixi Geng <cixi.geng1@xxxxxxxxxx>

Small adjustment the scale calibration value for the sc2731,
use new name sc2731_[big|small]_scale_graph_calib, and remove
the origin [big|small]_scale_graph_calib struct for unused.

Fixes: 8ba0dbfd07a35 (iio: adc: sc27xx: Add ADC scale calibration)

Signed-off-by: Cixi Geng <cixi.geng1@xxxxxxxxxx>
---
drivers/iio/adc/sc27xx_adc.c | 19 +++++++++++--------
1 file changed, 11 insertions(+), 8 deletions(-)

diff --git a/drivers/iio/adc/sc27xx_adc.c b/drivers/iio/adc/sc27xx_adc.c
index aee076c8e2b1..24211d2a71b1 100644
--- a/drivers/iio/adc/sc27xx_adc.c
+++ b/drivers/iio/adc/sc27xx_adc.c
@@ -103,14 +103,17 @@ static struct sc27xx_adc_linear_graph small_scale_graph = {
100, 341,
};

-static const struct sc27xx_adc_linear_graph big_scale_graph_calib = {
- 4200, 856,
- 3600, 733,
+/*
+ * Add the sc2731_[big|small]_scale_graph_calib for sc2731 pmic.
+ */
+static const struct sc27xx_adc_linear_graph sc2731_big_scale_graph_calib = {
+ 4200, 850,
+ 3600, 728,
};

-static const struct sc27xx_adc_linear_graph small_scale_graph_calib = {
- 1000, 833,
- 100, 80,
+static const struct sc27xx_adc_linear_graph sc2731_small_scale_graph_calib = {
+ 1000, 838,
+ 100, 84,
};

static int sc27xx_adc_get_calib_data(u32 calib_data, int calib_adc)
@@ -130,11 +133,11 @@ static int sc27xx_adc_scale_calibration(struct sc27xx_adc_data *data,
size_t len;

if (big_scale) {
- calib_graph = &big_scale_graph_calib;
+ calib_graph = &sc2731_big_scale_graph_calib;
graph = &big_scale_graph;
cell_name = "big_scale_calib";
} else {
- calib_graph = &small_scale_graph_calib;
+ calib_graph = &sc2731_small_scale_graph_calib;
graph = &small_scale_graph;
cell_name = "small_scale_calib";
}
--
2.25.1