diff options
| author | Simon Glass <sjg@chromium.org> | 2020-09-22 12:44:58 -0600 |
|---|---|---|
| committer | Bin Meng <bmeng.cn@gmail.com> | 2020-09-25 11:27:14 +0800 |
| commit | 88490e197903f6961cf2ee79d0ff8f0727155f27 (patch) | |
| tree | 85ba227fc1fc17f47666a92c20c9844f40b0ce85 /include/acpi/acpi_device.h | |
| parent | da7cff338f08cf43706a96bcd8cf398b7fb6ae2d (diff) | |
acpi: Support generating a multi-function _DSM for devices
Add a function to generate ACPI code for a _DSM method for a device.
This includes functions for starting and ending each part of the _DSM.
Signed-off-by: Simon Glass <sjg@chromium.org>
[bmeng: fix the "new blank line at EOF" git warning]
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Diffstat (limited to 'include/acpi/acpi_device.h')
| -rw-r--r-- | include/acpi/acpi_device.h | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/include/acpi/acpi_device.h b/include/acpi/acpi_device.h index 11461e168d3..a5b12217820 100644 --- a/include/acpi/acpi_device.h +++ b/include/acpi/acpi_device.h @@ -28,6 +28,9 @@ struct udevice; /* Length of a full path to an ACPI device */ #define ACPI_PATH_MAX 30 +/* UUID for an I2C _DSM method */ +#define ACPI_DSM_I2C_HID_UUID "3cdff6f7-4267-4555-ad05-b30a3d8938de" + /* Values that can be returned for ACPI device _STA method */ enum acpi_dev_status { ACPI_DSTATUS_PRESENT = BIT(0), @@ -320,6 +323,17 @@ int acpi_device_write_interrupt_or_gpio(struct acpi_ctx *ctx, struct udevice *dev, const char *prop); /** + * acpi_device_write_dsm_i2c_hid() - Write a device-specific method for HID + * + * This writes a DSM for an I2C Human-Interface Device based on the config + * provided + * + * @hid_desc_reg_offset: HID register offset + */ +int acpi_device_write_dsm_i2c_hid(struct acpi_ctx *ctx, + int hid_desc_reg_offset); + +/** * acpi_device_write_i2c_dev() - Write an I2C device to ACPI * * This creates a I2cSerialBus descriptor for an I2C device, including |