linux-kernel - [PATCH v3 09/18] iio: accel: bma220: relax constraints during probe()

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Message-Id: <20250913-b4-bma220_improvements-v3-9-0b97279b4e45@subdimension.ro>
Date: Sat, 13 Sep 2025 18:39:30 +0300
From: Petre Rodan <petre.rodan@...dimension.ro>
To: Jonathan Cameron <jic23@...nel.org>, 
 David Lechner <dlechner@...libre.com>, 
 Nuno Sá <nuno.sa@...log.com>, 
 Andy Shevchenko <andy@...nel.org>, Rob Herring <robh@...nel.org>, 
 Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>
Cc: Jonathan Cameron <Jonathan.Cameron@...wei.com>, 
 linux-iio@...r.kernel.org, devicetree@...r.kernel.org, 
 linux-kernel@...r.kernel.org, Petre Rodan <petre.rodan@...dimension.ro>
Subject: [PATCH v3 09/18] iio: accel: bma220: relax constraints during
 probe()

Allow compatible chips to work even if their identifier is different.

Signed-off-by: Petre Rodan <petre.rodan@...dimension.ro>
---
v2->v3 replace err with dev_info() (Jonathan)
---
 drivers/iio/accel/bma220_core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/iio/accel/bma220_core.c b/drivers/iio/accel/bma220_core.c
index fad73bf6b8f29c0a33519c64c8888a01008f7579..7fdb83cedfa1809490cfb7f89532182123d580ba 100644
--- a/drivers/iio/accel/bma220_core.c
+++ b/drivers/iio/accel/bma220_core.c
@@ -267,7 +267,7 @@ static int bma220_init(struct spi_device *spi)
 
 	ret = bma220_read_reg(spi, BMA220_REG_ID);
 	if (ret != BMA220_CHIP_ID)
-		return -ENODEV;
+		dev_info(&spi->dev, "Unknown chip found: 0x%02x\n", ret);
 
 	/* Make sure the chip is powered on and config registers are reset */
 	ret = bma220_power(spi, true);

-- 
2.49.1