[PATCH] iio: adc: at91-sama5d2_adc: get rid of 5 degrees Celsius adjustment

From: Claudiu Beznea
Date: Thu Oct 20 2022 - 06:26:32 EST


On SAMA7G5 final chip version there is no need for 5 degrees Celsius
adjustment when computing junction temperature, thus, remove it.

Fixes: 5ab38b81895c ("iio: adc: at91-sama5d2_adc: add support for temperature sensor")
Signed-off-by: Claudiu Beznea <claudiu.beznea@xxxxxxxxxxxxx>
---
drivers/iio/adc/at91-sama5d2_adc.c | 6 ++----
1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/iio/adc/at91-sama5d2_adc.c b/drivers/iio/adc/at91-sama5d2_adc.c
index 33e251552214..870f4cb60923 100644
--- a/drivers/iio/adc/at91-sama5d2_adc.c
+++ b/drivers/iio/adc/at91-sama5d2_adc.c
@@ -2307,11 +2307,9 @@ static int at91_adc_temp_sensor_init(struct at91_adc_state *st,
clb->p6 = buf[AT91_ADC_TS_CLB_IDX_P6];

/*
- * We prepare here the conversion to milli and also add constant
- * factor (5 degrees Celsius) to p1 here to avoid doing it on
- * hotpath.
+ * We prepare here the conversion to milli to avoid doing it on hotpath.
*/
- clb->p1 = clb->p1 * 1000 + 5000;
+ clb->p1 = clb->p1 * 1000;

free_buf:
kfree(buf);
--
2.34.1