linux-kernel - [PATCH v8 tty-next 0/4] serial: 8250_pci1xxxx: Add driver for the pci1xxxx's quad-uart function

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Message-ID: <20221211014730.1233272-1-kumaravel.thiagarajan@microchip.com>
Date:   Sun, 11 Dec 2022 07:17:26 +0530
From:   Kumaravel Thiagarajan <kumaravel.thiagarajan@...rochip.com>
To:     <linux-kernel@...r.kernel.org>
CC:     <linux-serial@...r.kernel.org>, <gregkh@...uxfoundation.org>,
        <jirislaby@...nel.org>, <ilpo.jarvinen@...ux.intel.com>,
        <macro@...am.me.uk>, <andriy.shevchenko@...ux.intel.com>,
        <cang1@...e.co.uk>, <colin.i.king@...il.com>,
        <phil.edworthy@...esas.com>, <biju.das.jz@...renesas.com>,
        <geert+renesas@...der.be>, <lukas@...ner.de>,
        <u.kleine-koenig@...gutronix.de>, <wander@...hat.com>,
        <etremblay@...tech-controls.com>, <jk@...abs.org>,
        <UNGLinuxDriver@...rochip.com>
Subject: [PATCH v8 tty-next 0/4] serial: 8250_pci1xxxx: Add driver for the pci1xxxx's quad-uart function

pci1xxxx is a PCIe switch with a multi-function endpoint on one of its
downstream ports. Quad-uart is one of the functions in the multi-function
endpoint. This patch adds device driver for the quad-uart function and
enumerates between 1 to 4 instances of uarts based on the PCIe subsystem
device ID.

The changes from v1->v2->v3->v4->v5->v6->v7->v8 are mentioned in each patch
in the patchset.

Thanks to Andy Shevchenko, Ilpo Jarvinen, Chritophe JAILLET, Geert
Uytterhoeven, Greg KH for their review comments.

Kumaravel Thiagarajan (4):
  serial: 8250_pci: Add serial8250_pci_setup_port definition in
    8250_pcilib.c
  serial: 8250_pci1xxxx: Add driver for quad-uart support
  serial: 8250_pci1xxxx: Add RS485 support to quad-uart driver
  serial: 8250_pci1xxxx: Add power management functions to quad-uart
    driver

 MAINTAINERS                             |   7 +
 drivers/tty/serial/8250/8250_pci.c      |  25 +-
 drivers/tty/serial/8250/8250_pci1xxxx.c | 502 ++++++++++++++++++++++++
 drivers/tty/serial/8250/8250_pcilib.c   |  38 ++
 drivers/tty/serial/8250/8250_pcilib.h   |  15 +
 drivers/tty/serial/8250/8250_port.c     |   8 +
 drivers/tty/serial/8250/Kconfig         |  15 +
 drivers/tty/serial/8250/Makefile        |   2 +
 include/uapi/linux/serial_core.h        |   3 +
 9 files changed, 593 insertions(+), 22 deletions(-)
 create mode 100644 drivers/tty/serial/8250/8250_pci1xxxx.c
 create mode 100644 drivers/tty/serial/8250/8250_pcilib.c
 create mode 100644 drivers/tty/serial/8250/8250_pcilib.h

-- 
2.25.1