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>,
Saket Dumbre <saket.dumbre@intel.com>,
"Len Brown" <lenb@kernel.org>, Guenter Roeck <linux@roeck-us.net>,
Philipp Zabel <p.zabel@pengutronix.de>,
Bjorn Andersson <bjorn.andersson@oss.qualcomm.com>,
Geert Uytterhoeven <geert@linux-m68k.org>,
Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>,
Arnd Bergmann <arnd@arndb.de>,
"Eric Biggers" <ebiggers@kernel.org>,
Wolfram Sang <wsa+renesas@sang-engineering.com>,
Miquel Raynal <miquel.raynal@bootlin.com>,
Jon Hunter <jonathanh@nvidia.com>,
"Thierry Reding" <treding@nvidia.com>,
<linux-tegra@vger.kernel.org>, <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 v3 08/13] i3c: dw-i3c-master: Add SETAASA as supported CCC
Date: Thu, 23 Apr 2026 14:27:07 +0530 [thread overview]
Message-ID: <20260423085718.70762-9-akhilrajeev@nvidia.com> (raw)
In-Reply-To: <20260423085718.70762-1-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 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 --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;
--
2.50.1
next prev parent reply other threads:[~2026-04-23 9:00 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-04-23 8:56 [PATCH v3 00/13] Support ACPI and SETAASA device discovery Akhil R
2026-04-23 8:57 ` [PATCH v3 01/13] dt-bindings: i3c: Add mipi-i3c-static-method to support SETAASA Akhil R
2026-04-23 8:57 ` [PATCH v3 02/13] ACPICA: Read LVR from the I2C resource descriptor Akhil R
2026-04-23 8:57 ` [PATCH v3 03/13] i3c: master: Use unified device property interface Akhil R
2026-04-23 8:57 ` [PATCH v3 04/13] i3c: master: Support ACPI enumeration of child devices Akhil R
2026-04-23 8:57 ` [PATCH v3 05/13] i3c: master: Add support for devices using SETAASA Akhil R
2026-04-23 8:57 ` [PATCH v3 06/13] i3c: master: Add support for devices without PID Akhil R
2026-04-23 8:57 ` [PATCH v3 07/13] i3c: master: match I3C device through DT and ACPI Akhil R
2026-04-23 8:57 ` Akhil R [this message]
2026-04-23 8:57 ` [PATCH v3 09/13] i3c: dw-i3c-master: Add a quirk to skip clock and reset Akhil R
2026-04-23 8:57 ` [PATCH v3 10/13] i3c: dw-i3c-master: Add ACPI ID for Tegra410 Akhil R
2026-04-23 8:57 ` [PATCH v3 11/13] hwmon: spd5118: Remove 16-bit addressing Akhil R
2026-04-23 8:57 ` [PATCH v3 12/13] hwmon: spd5118: Add I3C support Akhil R
2026-04-23 8:57 ` [PATCH v3 13/13] arm64: defconfig: Enable I3C and SPD5118 hwmon Akhil R
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