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Subject[PATCH v4 0/3] Add I2C support to Broadcom iProc
Date
This patchset contains the initial I2C support for Broadcom iProc family of
SoCs.

The iProc I2C controller has separate internal TX and RX FIFOs, each has a
size of 64 bytes. The iProc I2C controller supports two bus speeds including
standard mode (100 kHz) and fast mode (400 kHz)

Changes from v3:
- Add config dependency to COMPILE_TEST to allow the driver to be build tested
by other platforms
- Improve CPU utilization efficiency in the loop of waiting for bus to idle
- Add more comment in the driver to clarify the way how the "start busy"
interrupt is triggered from the I2C controller
- Fix inconsistent coding style and format
- Improve the bus speed validation logic in the driver
- Add code to free the interrupt line in driver's remove function. Also
change to use non-devm API to request the interrupt line
- Other miscellaneous improvements and fixes

Changes from v2:
- Have the I2C driver default to y so it does not need to be selected from
ARCH_BCM_IPROC. This also helps to get rid of one patch. The driver still
depends on ARCH_BCM_IPROC
- Get rid of redundant check on resource returned by platform_get_resource

Changes from v1:
- Fix function argument parenthesis
- Get rid of redundant driver owner field

Ray Jui (3):
i2c: iProc: define Broadcom iProc I2C binding
i2c: iproc: Add Broadcom iProc I2C Driver
ARM: dts: add I2C device nodes for Broadcom Cygnus

.../devicetree/bindings/i2c/brcm,iproc-i2c.txt | 37 ++
arch/arm/boot/dts/bcm-cygnus.dtsi | 20 +
drivers/i2c/busses/Kconfig | 10 +
drivers/i2c/busses/Makefile | 1 +
drivers/i2c/busses/i2c-bcm-iproc.c | 503 ++++++++++++++++++++
5 files changed, 571 insertions(+)
create mode 100644 Documentation/devicetree/bindings/i2c/brcm,iproc-i2c.txt
create mode 100644 drivers/i2c/busses/i2c-bcm-iproc.c

--
1.7.9.5



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