From mboxrd@z Thu Jan 1 00:00:00 1970 From: Radu Pirea Subject: [PATCH v4 0/6] Driver for at91 usart in spi mode Date: Fri, 25 May 2018 20:19:35 +0300 Message-ID: <20180525171941.26766-1-radu.pirea@microchip.com> Mime-Version: 1.0 Content-Type: text/plain Return-path: Sender: linux-kernel-owner@vger.kernel.org To: broonie@kernel.org, nicolas.ferre@microchip.com, alexandre.belloni@bootlin.com, lee.jones@linaro.org, richard.genoud@gmail.com, robh+dt@kernel.org, mark.rutland@arm.com, gregkh@linuxfoundation.org Cc: linux-spi@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, linux-serial@vger.kernel.org, Radu Pirea List-Id: devicetree@vger.kernel.org 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 Changes in v4: - modified the spi driver to use cs gpio support form spi subsystem - fixed dma transfers for serial driver - squashed binding for spi and serial and moved them to mfd/atmel-usart.txt Radu Pirea (6): MAINTAINERS: add at91 usart mfd driver dt-bindings: add binding for atmel-usart in SPI mode mfd: at91-usart: added mfd driver for usart MAINTAINERS: add at91 usart spi driver spi: at91-usart: add driver for at91-usart as spi tty/serial: atmel: changed the driver to work under at91-usart mfd .../bindings/{serial => mfd}/atmel-usart.txt | 25 +- MAINTAINERS | 16 + 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 | 431 ++++++++++++++++++ drivers/tty/serial/Kconfig | 1 + drivers/tty/serial/atmel_serial.c | 40 +- include/dt-bindings/mfd/at91-usart.h | 17 + 11 files changed, 606 insertions(+), 20 deletions(-) rename Documentation/devicetree/bindings/{serial => mfd}/atmel-usart.txt (76%) 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