Re: [PATCH v4 07/12] i3c: dw-i3c-master: Add SETAASA as supported CCC

On Tue, Jun 16, 2026 at 09:54:21AM +0000, Akhil R wrote:
> Add SETAASA and SETHID to the supported list of CCC commands for
> DesignWare I3C host controller.
>
> SETAASA is a broadcast command that assigns predefined static addresses
> to all I3C devices on the bus.
>
> SETHID is to stop HID bit flipping by the SPD Hub to which the SPD devices
> are connected. It is a prerequisite command to be sent before SETAASA as
> recommended by JESD300-5 and JESD403 sideband bus specifications.
>
> Signed-off-by: Akhil R <[email protected]>
> ---

Reviewed-by: Frank Li <[email protected]>

>  drivers/i3c/master/dw-i3c-master.c | 2 ++
>  1 file changed, 2 insertions(+)
>
> diff --git a/drivers/i3c/master/dw-i3c-master.c b/drivers/i3c/master/dw-i3c-master.c
> index 971b429b76bc..3e510fddf06c 100644
> --- a/drivers/i3c/master/dw-i3c-master.c
> +++ b/drivers/i3c/master/dw-i3c-master.c
> @@ -309,6 +309,8 @@ static bool dw_i3c_master_supports_ccc_cmd(struct i3c_master_controller *m,
>  	case I3C_CCC_GETSTATUS:
>  	case I3C_CCC_GETMXDS:
>  	case I3C_CCC_GETHDRCAP:
> +	case I3C_CCC_SETAASA:
> +	case I3C_CCC_VENDOR(0, true): /* SETHID */
>  		return true;
>  	default:
>  		return false;
> --
> 2.43.0
>

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