linux-kernel - [PATCH v3 0/6] Driver for at91 usart in spi mode

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Message-ID: <20180511103822.31698-1-radu.pirea@microchip.com>
Date:   Fri, 11 May 2018 13:38:16 +0300
From:   Radu Pirea <radu.pirea@...rochip.com>
To:     <devicetree@...r.kernel.org>, <linux-serial@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>, <linux-spi@...r.kernel.org>
CC:     <mark.rutland@....com>, <robh+dt@...nel.org>,
        <lee.jones@...aro.org>, <gregkh@...uxfoundation.org>,
        <jslaby@...e.com>, <richard.genoud@...il.com>,
        <alexandre.belloni@...tlin.com>, <nicolas.ferre@...rochip.com>,
        <broonie@...nel.org>, Radu Pirea <radu.pirea@...rochip.com>
Subject: [PATCH v3 0/6] Driver for at91 usart in spi mode

Hello,

This is the second version of driver. I added a mfd driver which by
default probes atmel_serial driver and if in dt is specified to probe
the spi driver, then the spi-at91-usart driver will be probed. The
compatible for atmel_serial is now the compatible for at91-usart mfd
driver and compatilbe for atmel_serial driver was changed in order to
keep the bindings for serial as they are.

Changes in v1:
- added spi-at91-usart driver

Changes in v2:
- added at91-usart mfd driver
- modified spi-at91-usart driver to work as mfd driver child
- modified atmel_serial driver to work as mfd driver child

Changes in v3:
- fixed spi slaves probing

Radu Pirea (6):
  MAINTAINERS: add at91 usart mfd driver
  mfd: at91-usart: added mfd driver for usart
  MAINTAINERS: add at91 usart spi driver
  dt-bindings: add binding for at91-usart in spi mode
  spi: at91-usart: add driver for at91-usart as spi
  tty/serial: atmel: changed the driver to work under at91-usart mfd

 .../bindings/spi/microchip,at91-usart-spi.txt |  28 +
 MAINTAINERS                                   |  14 +
 drivers/mfd/Kconfig                           |  10 +
 drivers/mfd/Makefile                          |   1 +
 drivers/mfd/at91-usart.c                      |  75 +++
 drivers/spi/Kconfig                           |   9 +
 drivers/spi/Makefile                          |   1 +
 drivers/spi/spi-at91-usart.c                  | 544 ++++++++++++++++++
 drivers/tty/serial/Kconfig                    |   1 +
 drivers/tty/serial/atmel_serial.c             |  29 +-
 include/dt-bindings/mfd/at91-usart.h          |  17 +
 11 files changed, 715 insertions(+), 14 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/spi/microchip,at91-usart-spi.txt
 create mode 100644 drivers/mfd/at91-usart.c
 create mode 100644 drivers/spi/spi-at91-usart.c
 create mode 100644 include/dt-bindings/mfd/at91-usart.h

-- 
2.17.0