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[v3,08/13] i3c: dw-i3c-master: Add SETAASA as supported CCC

Message ID 20260423085718.70762-9-akhilrajeev@nvidia.com
State Handled Elsewhere
Headers show
Series Support ACPI and SETAASA device discovery | expand

Commit Message

Akhil R April 23, 2026, 8:57 a.m. UTC 
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 <akhilrajeev@nvidia.com>
---
 drivers/i3c/master/dw-i3c-master.c | 2 ++
 1 file changed, 2 insertions(+)
diff mbox series

Patch

diff --git a/drivers/i3c/master/dw-i3c-master.c b/drivers/i3c/master/dw-i3c-master.c
index 655693a2187e..edd42daf7553 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;