| Message ID | 20221020102705.3639204-1-claudiu.beznea@microchip.com |
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From: Claudiu Beznea <claudiu.beznea@microchip.com>
To: <eugen.hristev@microchip.com>, <jic23@kernel.org>,
<lars@metafoo.de>, <nicolas.ferre@microchip.com>,
<alexandre.belloni@bootlin.com>
CC: <linux-iio@vger.kernel.org>,
<linux-arm-kernel@lists.infradead.org>,
<linux-kernel@vger.kernel.org>,
Claudiu Beznea <claudiu.beznea@microchip.com>
Subject: [PATCH] iio: adc: at91-sama5d2_adc: get rid of 5 degrees Celsius
adjustment
Date: Thu, 20 Oct 2022 13:27:05 +0300
Message-ID: <20221020102705.3639204-1-claudiu.beznea@microchip.com>
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| Series |
iio: adc: at91-sama5d2_adc: get rid of 5 degrees Celsius adjustment
|
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Commit Message
Claudiu Beznea
Oct. 20, 2022, 10:27 a.m. UTC
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@microchip.com>
---
drivers/iio/adc/at91-sama5d2_adc.c | 6 ++----
1 file changed, 2 insertions(+), 4 deletions(-)
Comments
On Thu, 20 Oct 2022 13:27:05 +0300 Claudiu Beznea <claudiu.beznea@microchip.com> wrote: > 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@microchip.com> Applied to the fixes-togreg branch of iio.git Thanks, Jonathan > --- > 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);
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);