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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-08-07 13:11:40 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-08-07 13:11:40 +0000
commit8b0a8165cdad0f4133837d753649ef4682e42c3b (patch)
tree5c58f869f31ddb1f7bd6e8bdea269b680b36c5b6 /drivers/iio/accel/bmc150-accel-i2c.c
parentReleasing progress-linux version 6.8.12-1~progress7.99u1. (diff)
downloadlinux-8b0a8165cdad0f4133837d753649ef4682e42c3b.tar.xz
linux-8b0a8165cdad0f4133837d753649ef4682e42c3b.zip
Merging upstream version 6.9.7.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'drivers/iio/accel/bmc150-accel-i2c.c')
-rw-r--r--drivers/iio/accel/bmc150-accel-i2c.c15
1 files changed, 14 insertions, 1 deletions
diff --git a/drivers/iio/accel/bmc150-accel-i2c.c b/drivers/iio/accel/bmc150-accel-i2c.c
index ee1ba134ad..1c2e403698 100644
--- a/drivers/iio/accel/bmc150-accel-i2c.c
+++ b/drivers/iio/accel/bmc150-accel-i2c.c
@@ -224,6 +224,19 @@ static const struct acpi_device_id bmc150_accel_acpi_match[] = {
{"BMA250E"},
{"BMC150A"},
{"BMI055A"},
+ /*
+ * The "BOSC0200" identifier used here is not unique to devices using
+ * bmc150. The same "BOSC0200" identifier is found in the ACPI tables
+ * of the ASUS ROG ALLY and Ayaneo AIR Plus which both use a Bosch
+ * BMI323 chip. This creates a conflict with duplicate ACPI identifiers
+ * which multiple drivers want to use. Fortunately, when the bmc150
+ * driver starts to load on the ASUS ROG ALLY, the chip ID check
+ * portion fails (correctly) because the chip IDs received (via i2c)
+ * are unique between bmc150 and bmi323 and a dmesg output similar to
+ * this: "bmc150_accel_i2c i2c-BOSC0200:00: Invalid chip 0" can be
+ * seen. This allows the bmi323 driver to take over for ASUS ROG ALLY,
+ * and other devices using the bmi323 chip.
+ */
{"BOSC0200"},
{"BSBA0150"},
{"DUAL250E"},
@@ -266,7 +279,7 @@ static struct i2c_driver bmc150_accel_driver = {
.driver = {
.name = "bmc150_accel_i2c",
.of_match_table = bmc150_accel_of_match,
- .acpi_match_table = ACPI_PTR(bmc150_accel_acpi_match),
+ .acpi_match_table = bmc150_accel_acpi_match,
.pm = &bmc150_accel_pm_ops,
},
.probe = bmc150_accel_probe,