Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::3:7 as permitted sender) client-ip=2620:137:e000::3:7;
From:   Frank Li <Frank.Li@nxp.com>
To:     miquel.raynal@bootlin.com, conor.culhane@silvaco.com,
        alexandre.belloni@bootlin.com, robh+dt@kernel.org,
        krzysztof.kozlowski+dt@linaro.org, conor+dt@kernel.org,
        corbet@lwn.net, joe@perches.com, Frank.Li@nxp.com,
        linux-i3c@lists.infradead.org, devicetree@vger.kernel.org,
        linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org
Cc:     gregkh@linuxfoundation.org, imx@lists.linux.dev,
        jirislaby@kernel.org, linux-serial@vger.kernel.org
Subject: [PATCH 0/5] I3C slave mode support
Date:   Wed, 18 Oct 2023 17:58:04 -0400
Message-Id: <20231018215809.3477437-1-Frank.Li@nxp.com>
Content-Transfer-Encoding: 8bit
Content-Type: text/plain
MIME-Version: 1.0
X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1
X-MS-Exchange-AntiSpam-MessageData-0: =?us-ascii?Q?gZaZ8HbKVDUrWzMGK6J/yWFbbO/UETRj9Ux7NtKDpv2sGd2ukxIbhvZLde4g?=
 =?us-ascii?Q?H8rvQh3NKJxI67mIWmFnRCoAizUiF1eZmgQnEN7rws1Jb04B6fEy2QKzFiSF?=
 =?us-ascii?Q?/c14hXaVfs0d0dL4c496tUs1t7ERZ5VTZ8kGK/DQANG5Ey6fbBvdvFgzMuHg?=
 =?us-ascii?Q?hAdCnn7Obg4v+ry08yD/3AzTlDYLOsevcpcsgeznI2KN5ZgLHrv2JHpCIlZG?=
 =?us-ascii?Q?OS5iaKdGhr09EgtpwrdOd4qgHGnGhFsLDShSYNFbybgWyWMJ69PasE2sfYnB?=
 =?us-ascii?Q?obsRRysEaU1xPibUG647nzkprySzKqPDZJdMPqpckNtLA+1lJrGkdzlSSjT4?=
 =?us-ascii?Q?5WyzceWFvso5Mli2Y+xp6VYpZEmoFGIp80zUk7dpLkzOjniDq/LW3fw7H90p?=
 =?us-ascii?Q?vPGQK4epkXuoCLzXp21AaaUjsgTX042kg+WUfkvkK3+19vHqy+6hvhP+4JUt?=
 =?us-ascii?Q?Kc3o50czOI/qVqboG5rt+NA5XMKRkvaqqWpf/vVEAgiK7CvUCYAyTRTZ8gak?=
 =?us-ascii?Q?kvTgNP13TdYRgzznwRLq+GhizOa36od6spVaA1glm1m0DdhiTW+l9hca+ONh?=
 =?us-ascii?Q?RweE0igF4cm7UmdjsGtaKFrhV3XRazibG1oIGKfZHkY3EzdFS+gPKWx/MhHh?=
 =?us-ascii?Q?SkvWMItHzrSXguwj6kpxqgld8kZdCnqh2jx1Cw8U9K7tBsObvahzx0KQLf1F?=
 =?us-ascii?Q?XfyDN51xObE2VS+izAxOQE9cJjDWkSi+uxTdE0ZTtnzKXgeiDjoCeQhx+ARc?=
 =?us-ascii?Q?ira90NPlsGE5u6oxvXGmJaiKYQ6uR+FjnYFrjyTGcxLRm1nkQ8K9NSxgD50i?=
 =?us-ascii?Q?B7aFj1iPH8RYFF7TsD5TkNCtYw8g0moAMmDBtiD4IcnJmgcNIlTbQCHn2t39?=
 =?us-ascii?Q?xO1MGTmfqsAHKJjQTL/VCSgKHTzG2rVzAC2siQBkViIFncFxIf+Bgn4SsR+6?=
 =?us-ascii?Q?nUbRciVezQGtwdcaisxMdmSoURYuqLZZ+thKd6a347rm92/NEmUiWOqPFeMw?=
 =?us-ascii?Q?VV2xJnGx5Cn0TRdS8zQhtCp3WlLn1N+1HqODLmPl29QmPJ8xj6TP5n/wXw4o?=
 =?us-ascii?Q?x04XYcFFShg/VbYv1Nw1HGi6b9xy8hlsjqTED8q9P8p/cbTE8qg8QTy3Z2/H?=
 =?us-ascii?Q?ovtTY7kWH2i6pkxb5DWsIlifO+YNAnDYCw1ACxe8jr3uQtzKB48c/QvWQMzZ?=
 =?us-ascii?Q?nFhOIZaJi9q20sslovLhJPTJkwH5wXJ0emk/ps4KID8FkUJKN29GozFDjkDj?=
 =?us-ascii?Q?O+Q/BPKCPYIppCSaTWCpT+iJbT4kFv30JNwaLmYYLtvgwPMQPnN1ReNHFgE8?=
 =?us-ascii?Q?dtF8Vi2twC4ULTe4MKa+31BAn/Q6xTwg2jQ1ydOupKRgJrOhKBTrx9jbM/o5?=
 =?us-ascii?Q?69zWLccO5/YwDw0lXBtIzvAFJyTyeEjqeYQYKJUarwuU7J/zoJRvfyLEe8zj?=
 =?us-ascii?Q?x1aNfks18aHaY09F9Tf7EvFGmptGux5YjaL80tTkHvZOrRtgHe88MN1K/Qmb?=
 =?us-ascii?Q?OuiHYhBIKF67sM3TQfIXDQ13Xe7KX0exCZYdHHsemE+/V4EYZAdv3iiS0X2u?=
 =?us-ascii?Q?tmWeeJrscH9sgWCwiGZ/FMDz1SRBTuzI7yzxySNG?=
X-OriginatorOrg: nxp.com
X-MS-Exchange-CrossTenant-Network-Message-Id: 2d1e612d-0454-45c1-4ed0-08dbd0255c7c
X-MS-Exchange-CrossTenant-AuthSource: AM6PR04MB4838.eurprd04.prod.outlook.com
X-MS-Exchange-CrossTenant-AuthAs: Internal
X-MS-Exchange-CrossTenant-OriginalArrivalTime: 18 Oct 2023 21:58:28.9153
 (UTC)
X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted
X-MS-Exchange-CrossTenant-Id: 686ea1d3-bc2b-4c6f-a92c-d99c5c301635
X-MS-Exchange-CrossTenant-MailboxType: HOSTED
X-MS-Exchange-CrossTenant-UserPrincipalName: xupsPAD27W2tAML6BLhf3v27Sp6HkYGvuhmgD8+Y/V7vdXu3PFTmtq6TVpKI9TEzWpJlboz0rR4x6TxrJK9SVw==
X-MS-Exchange-Transport-CrossTenantHeadersStamped: DB9PR04MB9750
X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,DKIM_SIGNED,
        DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_BLOCKED,
        RCVD_IN_MSPIKE_H2,SPF_HELO_PASS,SPF_PASS autolearn=ham
        autolearn_force=no version=3.4.6
X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on
        lindbergh.monkeyblade.net
Precedence: bulk
List-ID: <linux-kernel.vger.kernel.org>
X-Mailing-List: linux-kernel@vger.kernel.org
X-Greylist: Sender passed SPF test, not delayed by milter-greylist-4.6.4 (snail.vger.email [0.0.0.0]); Wed, 18 Oct 2023 14:58:40 -0700 (PDT)

This  patch introduces support for I3C slave mode, which is referenced
with a PCIe Endpoint system. It also establishes a configuration framework
(configfs) for the I3C slave controller driver and the I3C slave function
driver

Typic usage as

The user can configure the i3c-slave-tty device using configfs entry. In
order to change the vendorid, the following commands can be used

        # echo 0x011b > functions/tty/func1/vendor_id
        # echo 0x1000 > functions/tty/func1/part_id
        # echo 0x6 > functions/tty/t/bcr

Binding i3c-slave-tty Device to slave Controller
------------------------------------------------

In order for the slave function device to be useful, it has to be bound to
a I3C slave controller driver. Use the configfs to bind the function
device to one of the controller driver present in the system::

        # ln -s functions/pci_epf_test/func1 controllers/44330000.i3c-slave/

Host side:
        cat /dev/ttyI3C0
Slave side:
        echo abc >/dev/ttyI3C0

Master side patch:
https://lore.kernel.org/imx/20231018211111.3437929-1-Frank.Li@nxp.com/T/#u

Frank Li (5):
  i3c: add slave mode support
  dt-bindings: i3c: svc: add compatible string i3c: silvaco,i3c-slave
  i3c: slave: add svc slave controller support
  i3c: slave: func: add tty driver
  Documentation: i3c: Add I3C slave mode controller and function

 .../bindings/i3c/silvaco,i3c-master.yaml      |   8 +-
 Documentation/driver-api/i3c/index.rst        |   1 +
 .../driver-api/i3c/slave/i3c-slave-cfs.rst    | 109 +++
 .../driver-api/i3c/slave/i3c-slave.rst        | 189 +++++
 .../driver-api/i3c/slave/i3c-tty-function.rst | 103 +++
 .../driver-api/i3c/slave/i3c-tty-howto.rst    | 109 +++
 Documentation/driver-api/i3c/slave/index.rst  |  13 +
 drivers/i3c/Kconfig                           |  30 +
 drivers/i3c/Makefile                          |   4 +
 drivers/i3c/func/Kconfig                      |   9 +
 drivers/i3c/func/Makefile                     |   3 +
 drivers/i3c/func/tty.c                        | 548 ++++++++++++
 drivers/i3c/i3c-cfs.c                         | 389 +++++++++
 drivers/i3c/slave.c                           | 453 ++++++++++
 drivers/i3c/slave/Kconfig                     |   9 +
 drivers/i3c/slave/Makefile                    |   4 +
 drivers/i3c/slave/svc-i3c-slave.c             | 795 ++++++++++++++++++
 include/linux/i3c/slave.h                     | 503 +++++++++++
 18 files changed, 3276 insertions(+), 3 deletions(-)
 create mode 100644 Documentation/driver-api/i3c/slave/i3c-slave-cfs.rst
 create mode 100644 Documentation/driver-api/i3c/slave/i3c-slave.rst
 create mode 100644 Documentation/driver-api/i3c/slave/i3c-tty-function.rst
 create mode 100644 Documentation/driver-api/i3c/slave/i3c-tty-howto.rst
 create mode 100644 Documentation/driver-api/i3c/slave/index.rst
 create mode 100644 drivers/i3c/func/Kconfig
 create mode 100644 drivers/i3c/func/Makefile
 create mode 100644 drivers/i3c/func/tty.c
 create mode 100644 drivers/i3c/i3c-cfs.c
 create mode 100644 drivers/i3c/slave.c
 create mode 100644 drivers/i3c/slave/Kconfig
 create mode 100644 drivers/i3c/slave/Makefile
 create mode 100644 drivers/i3c/slave/svc-i3c-slave.c
 create mode 100644 include/linux/i3c/slave.h

-- 
2.34.1