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iio: accel: bmc150: Add support for dual-accelerometers with a DUAL250E HID

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The Lenovo Yoga 300-11IBR has a ACPI fwnode with a HID of DUAL250E
which contains I2C and IRQ resources for 2 accelerometers, 1 in the
display and one in the base of the device. Add support for this.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20210523170103.176958-5-hdegoede@redhat.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
This commit is contained in:
Hans de Goede 2021-05-23 19:00:58 +02:00 committed by Jonathan Cameron
parent 42d1c1dc0f
commit 3aac11a7c2
1 changed files with 12 additions and 7 deletions
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19
drivers/iio/accel/bmc150-accel-i2c.c
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@ -24,6 +24,7 @@
#ifdef CONFIG_ACPI
static const struct acpi_device_id bmc150_acpi_dual_accel_ids[] = {
{"BOSC0200"},
{"DUAL250E"},
{ }
};
@ -36,21 +37,24 @@ static void bmc150_acpi_dual_accel_probe(struct i2c_client *client)
{
struct acpi_device *adev = ACPI_COMPANION(&client->dev);
struct i2c_client *second_dev;
char dev_name[16];
struct i2c_board_info board_info = {
.type = "bmc150_accel",
/*
* The 2nd accel sits in the base of 2-in-1s. Note this name is
* static, as there should never be more then 1 BOSC0200 ACPI
* node with 2 accelerometers in it.
*/
.dev_name = "BOSC0200:base",
.dev_name = dev_name,
.fwnode = client->dev.fwnode,
.irq = -ENOENT,
};
if (acpi_match_device_ids(adev, bmc150_acpi_dual_accel_ids))
return;
/*
* The 2nd accel sits in the base of 2-in-1s. The suffix is static, as
* there should never be more then 1 ACPI node with 2 accelerometers.
*/
snprintf(dev_name, sizeof(dev_name), "%s:base", acpi_device_hid(adev));
board_info.irq = acpi_dev_gpio_irq_get(adev, 1);
second_dev = i2c_acpi_new_device(&client->dev, 1, &board_info);
if (!IS_ERR(second_dev))
bmc150_set_second_device(client, second_dev);
@ -118,6 +122,7 @@ static const struct acpi_device_id bmc150_accel_acpi_match[] = {
{"BMA222E", bma222e},
{"BMA0280", bma280},
{"BOSC0200"},
{"DUAL250E"},
{ },
};
MODULE_DEVICE_TABLE(acpi, bmc150_accel_acpi_match);