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Message-Id: <cover.1488383202.git.lolivei@synopsys.com>
Date: Wed, 1 Mar 2017 15:59:40 +0000
From: Luis Oliveira <Luis.Oliveira@...opsys.com>
To: wsa@...-dreams.de, robh+dt@...nel.org, mark.rutland@....com,
jarkko.nikula@...ux.intel.com, andriy.shevchenko@...ux.intel.com,
mika.westerberg@...ux.intel.com, linux-i2c@...r.kernel.org,
devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Cc: Luis.Oliveira@...opsys.com, Ramiro.Oliveira@...opsys.com,
Joao.Pinto@...opsys.com, CARLOS.PALMINHA@...opsys.com
Subject: [RESEND PATCH v6 0/6] i2c: designware: add I2C SLAVE support
The purpose of this patchset is to enable Linux to be a I2C slave by
enabling the slave functionality in the designware I2C controller and at
the same time it does some cleaning of the existing code.
The patch 1 is for cleaning and commentary fix.
The patch 2 refactors the original i2c-designware-core and extracts all
master functions to a i2c-designware-master source file as suggested by
Andy Shevchenko when I first submited the update. The patch 3 then
separates the MASTER flow from the common flow.
The patch 4 introduces the SLAVE necessary definitions to the
i2c-designware library and adds a how-to-use example to the designware.txt
in device tree bindings.
The patch 5 adds the necessary functions to give the ability to be a SLAVE
to the controller and for that changes also had to be made in the
Makefile and Kconfig.
The patch 6 enables the SLAVE mode to be detected by the platform module.
The functionality was tested using the hardware independent slave-eeprom
driver based on top of i2c/for-next. The tree I used can be found here:
https://git.kernel.org/cgit/linux/kernel/git/wsa/linux.git/log/?h=i2c/for-next
Luis Oliveira (6):
i2c: designware: Cleaning and comment style fixes.
i2c: designware: refactoring of the i2c-designware
i2c: designware: MASTER mode as separated driver
i2c: designware: introducing I2C_SLAVE definitions
i2c: designware: add SLAVE mode functions
i2c: designware: enable SLAVE in platform module
.../devicetree/bindings/i2c/i2c-designware.txt | 16 +-
drivers/i2c/busses/Kconfig | 15 +-
drivers/i2c/busses/Makefile | 2 +
drivers/i2c/busses/i2c-designware-common.c | 281 ++++++++++++
drivers/i2c/busses/i2c-designware-core.h | 180 +++++++-
...c-designware-core.c => i2c-designware-master.c} | 469 +++------------------
drivers/i2c/busses/i2c-designware-platdrv.c | 116 +++--
drivers/i2c/busses/i2c-designware-slave.c | 403 ++++++++++++++++++
8 files changed, 1031 insertions(+), 451 deletions(-)
create mode 100644 drivers/i2c/busses/i2c-designware-common.c
rename drivers/i2c/busses/{i2c-designware-core.c => i2c-designware-master.c} (59%)
create mode 100644 drivers/i2c/busses/i2c-designware-slave.c
--
2.11.0
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