[PATCH v2 08/13] i3c: dw-i3c-master: Add SETAASA as supported CCC

Akhil R
2026-04-09T11:00:28Z

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 on 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 <akhilrajeev@nvidia.com>
---
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 d6bdb32397fb..05ccdf177b6d 100644
--- a/drivers/i3c/master/dw-i3c-master.c
+++ b/drivers/i3c/master/dw-i3c-master.c
@@ -308,6 +308,8 @@ 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;
--
2.50.1