From: Akhil R <akhilrajeev@nvidia.com>
To: Alexandre Belloni <alexandre.belloni@bootlin.com>,
Frank Li <Frank.Li@nxp.com>, Rob Herring <robh@kernel.org>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
Conor Dooley <conor+dt@kernel.org>,
"Rafael J . Wysocki" <rafael@kernel.org>,
Robert Moore <robert.moore@intel.com>,
"Len Brown" <lenb@kernel.org>, Guenter Roeck <linux@roeck-us.net>,
Philipp Zabel <p.zabel@pengutronix.de>,
Eric Biggers <ebiggers@kernel.org>,
Sakari Ailus <sakari.ailus@linux.intel.com>,
Wolfram Sang <wsa+renesas@sang-engineering.com>,
Miquel Raynal <miquel.raynal@bootlin.com>,
<linux-i3c@lists.infradead.org>, <devicetree@vger.kernel.org>,
<linux-kernel@vger.kernel.org>, <linux-acpi@vger.kernel.org>,
<acpica-devel@lists.linux.dev>, <linux-hwmon@vger.kernel.org>
Cc: Akhil R <akhilrajeev@nvidia.com>
Subject: [PATCH v2 08/13] i3c: dw-i3c-master: Add SETAASA as supported CCC
Date: Thu, 9 Apr 2026 16:27:38 +0530 [thread overview]
Message-ID: <20260409105747.48158-9-akhilrajeev@nvidia.com> (raw)
In-Reply-To: <20260409105747.48158-1-akhilrajeev@nvidia.com>
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
next prev parent reply other threads:[~2026-04-09 11:00 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-04-09 10:57 [PATCH v2 00/13] Support ACPI and SETAASA device discovery Akhil R
2026-04-09 10:57 ` [PATCH v2 01/13] dt-bindings: i3c: Add mipi-i3c-static-method to support SETAASA Akhil R
2026-04-09 10:57 ` [PATCH v2 02/13] ACPICA: Read LVR from the I2C resource descriptor Akhil R
2026-04-09 11:07 ` Rafael J. Wysocki
2026-04-09 10:57 ` [PATCH v2 03/13] i3c: master: Use unified device property interface Akhil R
2026-04-09 10:57 ` [PATCH v2 04/13] i3c: master: Support ACPI enumeration of child devices Akhil R
2026-04-09 10:57 ` [PATCH v2 05/13] i3c: master: Add support for devices using SETAASA Akhil R
2026-04-09 10:57 ` [PATCH v2 06/13] i3c: master: Add support for devices without PID Akhil R
2026-04-09 10:57 ` [PATCH v2 07/13] i3c: master: match I3C device through DT and ACPI Akhil R
2026-04-09 10:57 ` Akhil R [this message]
2026-04-09 10:57 ` [PATCH v2 09/13] i3c: dw-i3c-master: Add a quirk to skip clock and reset Akhil R
2026-04-09 10:57 ` [PATCH v2 10/13] i3c: dw-i3c-master: Add ACPI ID for Tegra410 Akhil R
2026-04-09 10:57 ` [PATCH v2 11/13] hwmon: spd5118: Remove 16-bit addressing Akhil R
2026-04-09 14:11 ` Guenter Roeck
2026-04-09 10:57 ` [PATCH v2 12/13] hwmon: spd5118: Add I3C support Akhil R
2026-04-09 14:19 ` Guenter Roeck
2026-04-09 10:57 ` [PATCH v2 13/13] arm64: defconfig: Enable I3C and SPD5118 hwmon Akhil R
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