linux-kernel - [PATCH V2 0/2] Add AMD I3C master controller driver and bindings

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Message-ID: <20250829171327.2590730-1-manikanta.guntupalli@amd.com>
Date: Fri, 29 Aug 2025 22:43:25 +0530
From: Manikanta Guntupalli <manikanta.guntupalli@....com>
To: <git@....com>, <michal.simek@....com>, <alexandre.belloni@...tlin.com>,
	<Frank.Li@....com>, <robh@...nel.org>, <krzk+dt@...nel.org>,
	<conor+dt@...nel.org>, <kees@...nel.org>, <gustavoars@...nel.org>,
	<jarkko.nikula@...ux.intel.com>, <linux-i3c@...ts.infradead.org>,
	<devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
	<linux-hardening@...r.kernel.org>
CC: <radhey.shyam.pandey@....com>, <srinivas.goud@....com>,
	<shubhrajyoti.datta@....com>, <manion05gk@...il.com>, Manikanta Guntupalli
	<manikanta.guntupalli@....com>
Subject: [PATCH V2 0/2] Add AMD I3C master controller driver and bindings

This patch series introduces support for the AMD I3C master controller,
including the device tree binding and driver implementation.

Changes for V2:
Updated commit subject and description.
Moved allOf to after required.
Removed xlnx,num-targets property.
Added mixed mode support with clock configuration.
Converted smaller functions into inline functions.
Used FIELD_GET() in xi3c_get_response().
Updated xi3c_master_rd_from_rx_fifo() to use cmd->rx_buf.
Used parity8() for address parity calculation.
Added guards for locks.
Dropped num_targets and updated xi3c_master_do_daa().
Used __free(kfree) in xi3c_master_send_bdcast_ccc_cmd().
Dropped PM runtime support.
Updated xi3c_master_read() and xi3c_master_write() with
xi3c_is_resp_available() check.
Created separate functions: xi3c_master_init() and xi3c_master_reinit().
Used xi3c_master_init() in bus initialization and xi3c_master_reinit()
in error paths.
Added DAA structure to xi3c_master structure.

Manikanta Guntupalli (2):
  dt-bindings: i3c: Add AMD I3C master controller support
  i3c: master: Add AMD I3C bus controller driver

 .../devicetree/bindings/i3c/xlnx,axi-i3c.yaml |   53 +
 MAINTAINERS                                   |    7 +
 drivers/i3c/master/Kconfig                    |   16 +
 drivers/i3c/master/Makefile                   |    1 +
 drivers/i3c/master/amd-i3c-master.c           | 1009 +++++++++++++++++
 5 files changed, 1086 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/i3c/xlnx,axi-i3c.yaml
 create mode 100644 drivers/i3c/master/amd-i3c-master.c

-- 
2.34.1