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SubjectRe: [PATCH v6 2/2] dt-bindings: mfd: Add DT compatible string "google,cros_ec_uart"
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Hi Bhanu,

Thank you for your patch.

On 9/10/20 23:01, Bhanu Prakash Maiya wrote:
> Add DT compatible string in
> Documentation/devicetree/bindings/mfd/google,cros-ec.yaml
>

The problem with this patchset continues being the same. You are using the trick
of using a DT compatible string to instantiate an ACPI-only driver. You should
have an ACPI ID for that device or use a DMI table to match the device and
instantiate it (see for example the platform/chrome/cros_ec_lpc.c).

Thanks,
Enric

> Signed-off-by: Bhanu Prakash Maiya <bhanumaiya@chromium.org>
> Reviewed-by: Rob Herring <robh@kernel.org>
> ---
>
> Changes in v6:
> - No change
>
> Changes in v5:
> - No change
>
> Changes in v4:
> - Changes in commit message.
>
> Changes in v3:
> - Rebased changes on google,cros-ec.yaml
>
> Changes in v2:
> - No change
>
> Documentation/devicetree/bindings/mfd/google,cros-ec.yaml | 6 +++++-
> 1 file changed, 5 insertions(+), 1 deletion(-)
>
> diff --git a/Documentation/devicetree/bindings/mfd/google,cros-ec.yaml b/Documentation/devicetree/bindings/mfd/google,cros-ec.yaml
> index 6a7279a85ec1c..552d1c9bf3de4 100644
> --- a/Documentation/devicetree/bindings/mfd/google,cros-ec.yaml
> +++ b/Documentation/devicetree/bindings/mfd/google,cros-ec.yaml
> @@ -10,11 +10,12 @@ maintainers:
> - Benson Leung <bleung@chromium.org>
> - Enric Balletbo i Serra <enric.balletbo@collabora.com>
> - Guenter Roeck <groeck@chromium.org>
> + - Bhanu Prakash Maiya <bhanumaiya@chromium.org>
>
> description:
> Google's ChromeOS EC is a microcontroller which talks to the AP and
> implements various functions such as keyboard and battery charging.
> - The EC can be connected through various interfaces (I2C, SPI, and others)
> + The EC can be connected through various interfaces (I2C, SPI, UART and others)
> and the compatible string specifies which interface is being used.
>
> properties:
> @@ -29,6 +30,9 @@ properties:
> - description:
> For implementations of the EC is connected through RPMSG.
> const: google,cros-ec-rpmsg
> + - description:
> + For implementations of the EC is connected through UART.
> + const: google,cros-ec-uart
>
> google,cros-ec-spi-pre-delay:
> description:
>

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