[PATCH v4 34/35] dm: acpi: Enhance acpi_get_name()

[Bin Meng]

On Wed, Jul 8, 2020 at 3:13 AM Simon Glass <sjg at chromium.org> wrote:
>
> 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 <sjg at chromium.org>
> Reviewed-by: Wolfgang Wallner <wolfgang.wallner at br-automation.com>
> ---
>
> Changes in v4:
> - Mention that acpi_device_infer_name() only supports x86
> - Add a comment about only supporting USB3.0
>
> Changes in v3:
> - Fix 'of' typo
>
> Changes in v1:
> - Use acpi,ddn instead of acpi,desc
> - Rename to acpi_device_infer_name()
> - Update newly created sandbox tests
>
>  arch/sandbox/dts/test.dts           |   1 +
>  doc/device-tree-bindings/device.txt |  13 ++++
>  drivers/core/acpi.c                 |  13 +++-
>  drivers/i2c/sandbox_i2c.c           |  10 ---
>  drivers/spi/sandbox_spi.c           |  10 ---
>  include/acpi/acpi_device.h          |  18 +++++
>  lib/acpi/acpi_device.c              | 106 ++++++++++++++++++++++++++++
>  test/dm/acpi.c                      |  42 ++++++++++-
>  8 files changed, 190 insertions(+), 23 deletions(-)
>

Reviewed-by: Bin Meng <bmeng.cn at gmail.com>