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From: Antoniu Miclaus <antoniu.miclaus@analog.com>
To: "Dixit Parmar" <dixitparmar19@gmail.com>,
	"Jonathan Cameron" <jic23@kernel.org>,
	"David Lechner" <dlechner@baylibre.com>,
	"Nuno Sá" <nuno.sa@analog.com>,
	"Andy Shevchenko" <andy@kernel.org>,
	linux-iio@vger.kernel.org, linux-kernel@vger.kernel.org
Cc: Antoniu Miclaus <antoniu.miclaus@analog.com>
Subject: [PATCH] iio: magnetometer: tlv493d: remove erroneous shift in X-axis data
Date: Tue, 10 Feb 2026 18:49:50 +0200	[thread overview]
Message-ID: <20260210164951.8511-1-antoniu.miclaus@analog.com> (raw)

TLV493D_BX2_MAG_X_AXIS_LSB is defined as GENMASK(7, 4). FIELD_GET()
already right-shifts bits [7:4] to [3:0], so the additional >> 4
discards most of the X-axis low nibble. The Y and Z axes correctly
omit this extra shift. Remove it.

Fixes: 106511d280c7 ("iio: magnetometer: add support for Infineon TLV493D 3D Magentic sensor")
Signed-off-by: Antoniu Miclaus <antoniu.miclaus@analog.com>
---
 drivers/iio/magnetometer/tlv493d.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/iio/magnetometer/tlv493d.c b/drivers/iio/magnetometer/tlv493d.c
index ec53fd40277b..e5e050af2b74 100644
--- a/drivers/iio/magnetometer/tlv493d.c
+++ b/drivers/iio/magnetometer/tlv493d.c
@@ -171,7 +171,7 @@ static s16 tlv493d_get_channel_data(u8 *b, enum tlv493d_channels ch)
 	switch (ch) {
 	case TLV493D_AXIS_X:
 		val = FIELD_GET(TLV493D_BX_MAG_X_AXIS_MSB, b[TLV493D_RD_REG_BX]) << 4 |
-		      FIELD_GET(TLV493D_BX2_MAG_X_AXIS_LSB, b[TLV493D_RD_REG_BX2]) >> 4;
+		      FIELD_GET(TLV493D_BX2_MAG_X_AXIS_LSB, b[TLV493D_RD_REG_BX2]);
 		break;
 	case TLV493D_AXIS_Y:
 		val = FIELD_GET(TLV493D_BY_MAG_Y_AXIS_MSB, b[TLV493D_RD_REG_BY]) << 4 |
-- 
2.43.0


             reply	other threads:[~2026-02-10 16:50 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-02-10 16:49 Antoniu Miclaus [this message]
2026-02-18 19:20 ` [PATCH] iio: magnetometer: tlv493d: remove erroneous shift in X-axis data Jonathan Cameron

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