From: "Otávio Silva" <otavio.ols@usp.br>
To: jic23@kernel.org
Cc: "Otávio Silva" <otavio.ols@usp.br>,
"Thiago Duvanel" <thiago.duvanel@usp.br>,
"Felipe Aníbal Brito" <felipeanibal@usp.br>,
linux-iio@vger.kernel.org
Subject: [PATCH] iio: adc: use sign_extend32 to provide negative numbers conversion
Date: Sat, 20 Apr 2024 20:34:11 -0300 [thread overview]
Message-ID: <20240420233836.24971-1-otavio.ols@usp.br> (raw)
This implements the use of the sign_extend32 function to handle the output
of negative numbers.
Co-developed-by: Thiago Duvanel <thiago.duvanel@usp.br>
Signed-off-by: Thiago Duvanel <thiago.duvanel@usp.br>
Co-developed-by: Felipe Aníbal Brito <felipeanibal@usp.br>
Signed-off-by: Felipe Aníbal Brito <felipeanibal@usp.br>
Signed-off-by: Otávio Silva <otavio.ols@usp.br>
---
drivers/iio/adc/ltc2309.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/iio/adc/ltc2309.c b/drivers/iio/adc/ltc2309.c
index 8b3a89c1b..cb93dbc94 100644
--- a/drivers/iio/adc/ltc2309.c
+++ b/drivers/iio/adc/ltc2309.c
@@ -124,7 +124,7 @@ static int ltc2309_read_raw_channel(struct ltc2309 *ltc2309,
return ret;
}
- *val = be16_to_cpu(buf) >> 4;
+ *val = sign_extend32(be16_to_cpu(buf) >> 4, 11);
return ret;
}
--
2.44.0
next reply other threads:[~2024-04-20 23:39 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-04-20 23:34 Otávio Silva [this message]
2024-04-21 17:38 ` [PATCH] iio: adc: use sign_extend32 to provide negative numbers conversion Jonathan Cameron
2024-04-28 2:02 ` Otávio Silva
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