Re: [PATCH 3/7] firmware: arm_scmi: imx: Support getting cfg info of MISC protocol

Sudeep Holla
2025-07-02T15:22:03Z

On Fri, Jun 27, 2025 at 02:03:46PM +0800, Peng Fan wrote:
> MISC protocol supports getting the System Manager(SM) mode selection
> and configuration name. Add the API for user to retrieve the information
> from SM.
>
> Signed-off-by: Peng Fan <peng.fan@nxp.com>
> ---
> .../firmware/arm_scmi/vendors/imx/imx-sm-misc.c | 30 ++++++++++++++++++++++
> include/linux/scmi_imx_protocol.h | 5 ++++
> 2 files changed, 35 insertions(+)
>
> diff --git a/drivers/firmware/arm_scmi/vendors/imx/imx-sm-misc.c b/drivers/firmware/arm_scmi/vendors/imx/imx-sm-misc.c
> index 1b24d070c6f4856b92f515fcdba5836fd6498ce6..8ce4bf92e6535af2f30d72a34717678613b35049 100644
> --- a/drivers/firmware/arm_scmi/vendors/imx/imx-sm-misc.c
> +++ b/drivers/firmware/arm_scmi/vendors/imx/imx-sm-misc.c
> @@ -26,6 +26,7 @@ enum scmi_imx_misc_protocol_cmd {
> SCMI_IMX_MISC_CTRL_SET = 0x3,
> SCMI_IMX_MISC_CTRL_GET = 0x4,
> SCMI_IMX_MISC_DISCOVER_BUILDINFO = 0x6,
> + SCMI_IMX_MISC_CFG_INFO = 0xC,
> SCMI_IMX_MISC_CTRL_NOTIFY = 0x8,
> };
>
> @@ -73,6 +74,11 @@ struct scmi_imx_misc_buildinfo_out {
> u8 buildtime[MISC_MAX_BUILDTIME];
> };
>
> +struct scmi_imx_misc_cfg_info_out {
> + __le32 msel;

Now, I realise, this mode select is not properly defined in the document.
Just 32-bit word. What are those values ? Any fixed list of values with
well defined modes or configurations ? If so, please add to the document.

--
Regards,
Sudeep