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Message-ID: <20180713164736.26028-1-radu.pirea@microchip.com>
Date: Fri, 13 Jul 2018 19:47:30 +0300
From: Radu Pirea <radu.pirea@...rochip.com>
To: <broonie@...nel.org>, <nicolas.ferre@...rochip.com>,
<alexandre.belloni@...tlin.com>, <lee.jones@...aro.org>,
<richard.genoud@...il.com>, <robh+dt@...nel.org>,
<mark.rutland@....com>, <gregkh@...uxfoundation.org>
CC: <linux-spi@...r.kernel.org>,
<linux-arm-kernel@...ts.infradead.org>,
<linux-kernel@...r.kernel.org>, <devicetree@...r.kernel.org>,
<linux-serial@...r.kernel.org>,
Radu Pirea <radu.pirea@...rochip.com>
Subject: [PATCH v11 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.
@Lee, could you take this patch series into your tree? I addressed all Mark
remarks.
Changes in v11:
- removed "depends on HAS_DMA" from drivers/spi/Kconfig because the driver has
no dma support
- changed "selects MFD_AT91_USART" to "depends on MFD_AT91_USART" in
drivers/spi/Kconfig
- changed comment style in spi-at91-usart.c
Changes in v10:
-fixed kbuild test robot warning
Changes in v9:
- minor changes
- rebased on top of broonie/for-4.19
Changes in v8:
- fixed passing an empty mfd cell if "atmel,usart-mode" value is invalid
Changes in v7:
- synced up SPDIX license with module license
- numbering of usart modes starts from 0 insteand of 1
Changes in v6:
- removed unused compatible strings from serial and spi drivers
Changes in v5:
- fixed usage of stdout-path property with atmel_serial driver
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
Changes in v3:
- fixed spi slaves probing
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 v1:
- added spi-at91-usart driver
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: change the driver to work under at91-usart mfd
.../bindings/{serial => mfd}/atmel-usart.txt | 25 +-
MAINTAINERS | 16 +
drivers/mfd/Kconfig | 9 +
drivers/mfd/Makefile | 1 +
drivers/mfd/at91-usart.c | 71 +++
drivers/spi/Kconfig | 8 +
drivers/spi/Makefile | 1 +
drivers/spi/spi-at91-usart.c | 432 ++++++++++++++++++
drivers/tty/serial/Kconfig | 1 +
drivers/tty/serial/atmel_serial.c | 42 +-
include/dt-bindings/mfd/at91-usart.h | 17 +
11 files changed, 606 insertions(+), 17 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
--
2.18.0
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