Re: [Patch v3 1/8] dt/bindings: firmware: Add Qualcomm SCM binding

From: Rob Herring
Date: Thu May 05 2016 - 18:17:24 EST


On Wed, May 04, 2016 at 05:50:38PM -0500, Andy Gross wrote:
> This patch adds the device tree support for the Qualcomm SCM firmware.
>
> Signed-off-by: Andy Gross <andy.gross@xxxxxxxxxx>
> ---
> .../devicetree/bindings/firmware/qcom,scm.txt | 26 ++++++++++++++++++++++
> 1 file changed, 26 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/firmware/qcom,scm.txt
>
> diff --git a/Documentation/devicetree/bindings/firmware/qcom,scm.txt b/Documentation/devicetree/bindings/firmware/qcom,scm.txt
> new file mode 100644
> index 0000000..ee7cd12
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/firmware/qcom,scm.txt
> @@ -0,0 +1,26 @@
> +QCOM Secure Channel Manager (SCM)
> +
> +Qualcomm processors include an interface to communicate to the secure firmware.
> +This interface allows for clients to request different types of actions. These
> +can include CPU power up/down, HDCP requests, loading of firmware, and other
> +assorted actions.
> +
> +Required properties:
> +- compatible: must contain one of the following:
> + * "qcom,scm-a-family" for A family Qualcomm processors (APQ8064, MSM8960, etc)
> + * "qcom,scm" for B family and later processors (MSM8916, APQ8084, MSM8974, etc)
> +- clocks: One to three clocks may be required based on compatible.
> + * Only core clock required for "qcom,scm-apq8064"

This is not a compatible string. What happened to the chip ones. I
thought we decided on chip specific plus one of the above ones.

Rob