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[87.123.106.162]) by smtp.gmail.com with ESMTPSA id vg11-20020a170907d30b00b00a37669280d1sm1660638ejc.141.2024.02.04.10.06.12 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 04 Feb 2024 10:06:12 -0800 (PST) From: Jesus Gonzalez To: jic23@kernel.org, lars@metafoo.de Cc: linux-iio@vger.kernel.org, linux-kernel@vger.kernel.org, Jesus Gonzalez Subject: [PATCH 1/1] Add 10EC5280 to bmi160_i2c ACPI IDs to allow binding on some devices Date: Sun, 4 Feb 2024 19:05:37 +0100 Message-ID: <20240204180536.30617-2-jesusmgh@gmail.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240204140010.7edaa782@jic23-huawei> References: <20240204140010.7edaa782@jic23-huawei> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1789809327076226944 X-GMAIL-MSGID: 1789992633205600626 "10EC5280" is used by several manufacturers like Lenovo, GPD, or AYA (and probably others) in their ACPI table as the ID for the bmi160 IMU. This means the bmi160_i2c driver won't bind to it, and the IMU is unavailable to the user. Manufacturers have been approached on several occasions to try getting a BIOS with a fixed ID, mostly without actual positive results, and since affected devices are already a few years old, this is not expected to change. This patch enables using the bmi160_i2c driver for the bmi160 IMU on these devices. Signed-off-by: Jesus Gonzalez --- drivers/iio/imu/bmi160/bmi160_spi.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/drivers/iio/imu/bmi160/bmi160_spi.c b/drivers/iio/imu/bmi160/bmi160_spi.c index 8b573ea99af2..0df961a129bb 100644 --- a/drivers/iio/imu/bmi160/bmi160_spi.c +++ b/drivers/iio/imu/bmi160/bmi160_spi.c @@ -41,6 +41,14 @@ MODULE_DEVICE_TABLE(spi, bmi160_spi_id); static const struct acpi_device_id bmi160_acpi_match[] = { {"BMI0160", 0}, + /* FIRMWARE BUG WORKAROUND + * Some manufacturers like GPD, Lenovo or Aya used the incorrect + * ID "10EC5280" for bmi160 in their DSDT. A fixed firmware is not + * available as of Feb 2024 after trying to work with OEMs, and + * this is not expected to change anymore since at least some of + * the affected devices are from 2021/2022. + */ + {"10EC5280", 0}, { }, }; MODULE_DEVICE_TABLE(acpi, bmi160_acpi_match);