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From: Mikko Perttunen <mperttunen@nvidia.com>
To: <robh+dt@kernel.org>, <mark.rutland@arm.com>,
	<jassisinghbrar@gmail.com>, <gregkh@linuxfoundation.org>,
	<thierry.reding@gmail.com>, <jonathanh@nvidia.com>
Cc: <araza@nvidia.com>, <devicetree@vger.kernel.org>,
	<linux-serial@vger.kernel.org>, <linux-tegra@vger.kernel.org>,
	<linux-arm-kernel@lists.infradead.org>,
	<linux-kernel@vger.kernel.org>,
	Mikko Perttunen <mperttunen@nvidia.com>
Subject: [PATCH 0/8] Tegra Combined UART driver
Date: Tue, 8 May 2018 14:43:55 +0300	[thread overview]
Message-ID: <20180508114403.14499-1-mperttunen@nvidia.com> (raw)

Hi all,

on Tegra194, the primary console UART is the "Tegra Combined UART",
or TCU. This is a "virtual UART", where each consumer communicates
with a central implementation over mailboxes. The central
implementation then multiplexes the streams and arbitrates use of
a hardware serial port. This driver implements the consumer portion
to allow using the primary console.

The series is split into the following parts:
* patches 1 and 2 add the device tree bindings for mailbox and tcu
  itself.
* patch 3 adds a blocking transmission option to the mailbox
  framework.
* patches 4 and 5 add support for the "shared mailbox" primitive
  to the Tegra HSP driver.
* patch 6 adds the TCU driver itself
* patches 7 and 8 do the necessary device tree changes.

The series has been tested on the Tegra194 P2972 board.

Thanks,
Mikko

Mikko Perttunen (8):
  dt-bindings: tegra186-hsp: Add shared interrupts
  dt-bindings: serial: Add bindings for nvidia,tegra194-tcu
  mailbox: Add transmit done by blocking option
  mailbox: tegra-hsp: Refactor in preparation of mailboxes
  mailbox: tegra-hsp: Add support for shared mailboxes
  serial: Add Tegra Combined UART driver
  arm64: tegra: Add nodes for tcu on Tegra194
  arm64: tegra: Mark tcu as primary serial port on Tegra194 P2888

 .../bindings/mailbox/nvidia,tegra186-hsp.txt       |   2 +
 .../bindings/serial/nvidia,tegra194-tcu.txt        |  35 +++
 arch/arm64/boot/dts/nvidia/tegra194-p2888.dtsi     |   2 +-
 arch/arm64/boot/dts/nvidia/tegra194.dtsi           |  34 ++-
 drivers/mailbox/mailbox.c                          |  30 +-
 drivers/mailbox/mailbox.h                          |   1 +
 drivers/mailbox/tegra-hsp.c                        | 320 +++++++++++++++++----
 drivers/tty/serial/Kconfig                         |   9 +
 drivers/tty/serial/Makefile                        |   1 +
 drivers/tty/serial/tegra-tcu.c                     | 302 +++++++++++++++++++
 include/uapi/linux/serial_core.h                   |   3 +
 11 files changed, 671 insertions(+), 68 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/serial/nvidia,tegra194-tcu.txt
 create mode 100644 drivers/tty/serial/tegra-tcu.c

-- 
2.16.1


             reply	other threads:[~2018-05-08 11:49 UTC|newest]

Thread overview: 25+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-05-08 11:43 Mikko Perttunen [this message]
2018-05-08 11:43 ` [PATCH 1/8] dt-bindings: tegra186-hsp: Add shared interrupts Mikko Perttunen
2018-05-22 15:15   ` Jon Hunter
2018-06-19 12:41     ` Mikko Perttunen
2018-05-08 11:43 ` [PATCH 2/8] dt-bindings: serial: Add bindings for nvidia,tegra194-tcu Mikko Perttunen
2018-05-22 15:15   ` Jon Hunter
2018-05-22 20:18     ` Rob Herring
2018-05-22 20:20   ` Rob Herring
2018-05-08 11:43 ` [PATCH 3/8] mailbox: Add transmit done by blocking option Mikko Perttunen
2018-05-08 11:43 ` [PATCH 4/8] mailbox: tegra-hsp: Refactor in preparation of mailboxes Mikko Perttunen
2018-05-22 15:36   ` Jon Hunter
2018-06-19 12:52     ` Mikko Perttunen
2018-05-08 11:44 ` [PATCH 5/8] mailbox: tegra-hsp: Add support for shared mailboxes Mikko Perttunen
2018-05-22 16:20   ` Jon Hunter
2018-05-08 11:44 ` [PATCH 6/8] serial: Add Tegra Combined UART driver Mikko Perttunen
2018-05-13 14:16   ` Andy Shevchenko
2018-05-13 18:04     ` Mikko Perttunen
2018-05-13 22:20       ` Andy Shevchenko
2018-05-14  7:36         ` Mikko Perttunen
2018-05-13 15:36   ` Jassi Brar
2018-05-13 18:06     ` Mikko Perttunen
2018-05-08 11:44 ` [PATCH 7/8] arm64: tegra: Add nodes for tcu on Tegra194 Mikko Perttunen
2018-05-22 16:28   ` Jon Hunter
2018-05-08 11:44 ` [PATCH 8/8] arm64: tegra: Mark tcu as primary serial port on Tegra194 P2888 Mikko Perttunen
2018-05-22 16:29   ` Jon Hunter

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