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| Path | csiph.com!eternal-september.org!feeder.eternal-september.org!aioe.org!bofh.it!news.nic.it!robomod |
|---|---|
| From | Luis Oliveira <Luis.Oliveira@synopsys.com> |
| Newsgroups | linux.kernel |
| Subject | [PATCH v9 0/6] i2c: designware: add I2C SLAVE support |
| Date | Mon, 08 May 2017 12:40:02 +0200 |
| Message-ID | <tEOf7-2KW-3@gated-at.bofh.it> (permalink) |
| X-Original-To | wsa@the-dreams.de, robh+dt@kernel.org, mark.rutland@arm.com, jarkko.nikula@linux.intel.com, andriy.shevchenko@linux.intel.com, mika.westerberg@linux.intel.com, linux-i2c@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org |
| X-Mailer | git-send-email 2.11.0 |
| Sender | robomod@news.nic.it |
| List-ID | <linux-kernel.vger.kernel.org> |
| X-Mailing-List | linux-kernel@vger.kernel.org |
| Approved | robomod@news.nic.it |
| Lines | 46 |
| Organization | linux.* mail to news gateway |
| X-Original-Cc | Luis.Oliveira@synopsys.com, Ramiro.Oliveira@synopsys.com, Joao.Pinto@synopsys.com, CARLOS.PALMINHA@synopsys.com |
| X-Original-Date | Mon, 8 May 2017 11:37:15 +0100 |
| X-Original-Message-ID | <cover.1493893241.git.lolivei@synopsys.com> |
| X-Original-Sender | linux-kernel-owner@vger.kernel.org |
| Xref | csiph.com linux.kernel:1637361 |
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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 | 280 +++++++++++++
drivers/i2c/busses/i2c-designware-core.h | 182 +++++++-
...c-designware-core.c => i2c-designware-master.c} | 465 +++------------------
drivers/i2c/busses/i2c-designware-pcidrv.c | 8 +-
drivers/i2c/busses/i2c-designware-platdrv.c | 117 ++++--
drivers/i2c/busses/i2c-designware-slave.c | 403 ++++++++++++++++++
9 files changed, 1035 insertions(+), 453 deletions(-)
create mode 100644 drivers/i2c/busses/i2c-designware-common.c
rename drivers/i2c/busses/{i2c-designware-core.c => i2c-designware-master.c} (60%)
create mode 100644 drivers/i2c/busses/i2c-designware-slave.c
--
2.11.0
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[PATCH v9 0/6] i2c: designware: add I2C SLAVE support Luis Oliveira <Luis.Oliveira@synopsys.com> - 2017-05-08 12:40 +0200 [PATCH v9 1/6] i2c: designware: Cleaning and comment style fixes. Luis Oliveira <Luis.Oliveira@synopsys.com> - 2017-05-08 12:40 +0200
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