u-boot.git/include/acpi, branch v2020.10

acpi: Support writing named values

2020-07-17T06:32:24+00:00

Allow writing named integers and strings to the generated ACPI code.

Signed-off-by: Simon Glass 
Reviewed-by: Bin Meng 
Reviewed-by: Wolfgang Wallner 
[bmeng: Fix the "new blank line at EOF" warning]
Signed-off-by: Bin Meng

acpi: Support generation of a device

2020-07-17T06:32:24+00:00

Allow writing an ACPI device to the generated ACPI code.

Signed-off-by: Simon Glass 
Reviewed-by: Bin Meng 
Reviewed-by: Wolfgang Wallner 
[bmeng: Fix build failures on Sandbox]
Signed-off-by: Bin Meng

acpi: Support generation of a generic register

2020-07-17T06:32:24+00:00

Allow writing out a generic register.

Signed-off-by: Simon Glass 
Reviewed-by: Bin Meng 
Reviewed-by: Wolfgang Wallner 
[bmeng: Fix build failures on Sandbox]
Signed-off-by: Bin Meng

acpi: Support generation of a scope

2020-07-17T06:32:24+00:00

Add a function to write a scope to the generated ACPI code.

Signed-off-by: Simon Glass 
Reviewed-by: Wolfgang Wallner 
Reviewed-by: Bin Meng 
[bmeng: Fix build failures on Sandbox]
Signed-off-by: Bin Meng

acpi: Export functions to write sized values

2020-07-17T06:32:24+00:00

At present only acpigen_write_integer() is exported for use by other code.
But in some cases it is useful to call the specific function depending on
the size of the value.

Export these functions and add a test.

Signed-off-by: Simon Glass 
Reviewed-by: Wolfgang Wallner 
Reviewed-by: Bin Meng 
[bmeng: Fix the "new blank line at EOF" warning]
Signed-off-by: Bin Meng

dm: acpi: Enhance acpi_get_name()

2020-07-17T06:32:24+00:00

For many device types it is possible to figure out the name just by
looking at its uclass or parent. Add a function to handle this, since it
allows us to cover the vast majority of cases automatically.

However it is sometimes impossible to figure out an ACPI name for a device
just by looking at its uclass. For example a touch device may have a
vendor-specific name. Add a new "acpi,name" property to allow a custom
name to be created.

With this new feature we can drop the get_name() methods in the sandbox
I2C and SPI drivers. They were only added for testing purposes. Update the
tests to use the new values.

Signed-off-by: Simon Glass 
Reviewed-by: Wolfgang Wallner 
Reviewed-by: Bin Meng

acpi: Add support for a generic power sequence

2020-07-17T06:32:24+00:00

Add a way for devices to enable and disable themselves using ACPI code
that updates GPIOs. This takes several timing parameters and supports
enable, reset and stop.

Signed-off-by: Simon Glass 
Reviewed-by: Wolfgang Wallner 
Reviewed-by: Bin Meng

acpi: Add support for writing a GPIO power sequence

2020-07-17T06:32:24+00:00

Power to some devices is controlled by GPIOs. Add a way to generate ACPI
code to enable and disable a GPIO so that this can be handled within an
ACPI method.

Signed-off-by: Simon Glass 
Reviewed-by: Wolfgang Wallner 
Reviewed-by: Bin Meng

acpi: Add support for writing a Power Resource

2020-07-17T06:32:24+00:00

These are used in ACPI to disable power to various pats of the system when
in sleep. Add a way to create a power resource, with the caller finishing
off the details.

Signed-off-by: Simon Glass 
Reviewed-by: Wolfgang Wallner 
Reviewed-by: Bin Meng

acpi: Add support for various misc ACPI opcodes

2020-07-17T06:32:24+00:00

Add more functions to handle some miscellaneous ACPI opcodes.

Signed-off-by: Simon Glass 
Reviewed-by: Wolfgang Wallner 
Reviewed-by: Bin Meng