As a part of arm consolidation activity, the OMAP board files needs to be converted to use device tree. To begin with, two board files are selected to use device tree for I2C device registration. The I2C and it's child devices existing on beagle and panda boards are modified in order to use device tree nodes created in device tree blob. This patch series demonstrates i2c nodes creation and it's usage in i2c and it's client drivers. Since, current implementation of OMAP I2C driver uses SoC specific HWMOD framework for clock initilization, enable/disable and other PM functionalities, the patch series cannot work independently since device registration through device tree bypasses HWMOD framework. There should be method to control peripheral level clock and to use existing hwmod framework api's and features through device tree. This might require alignment and suggestions from hwmod maintainers and contributors so that it can be adapted for other drivers also. TODO: 1. The board file changes will move to new file board_dt.c once board file is completly migrated to DT. 2. Look up table can be provided if specific device names are required and also platform_data can be passed through lookup table while populating device nodes. Applies on top of: git://git.secretlab.ca/git/linux-2.6 Branch:devicetree/test Compilation: Compiles for omap2plus_defconfig Testing: Boot testing is done on beagle and panda and in i2c driver, the device tree node data is verified manually in i2c driver and i2c driver will not work after the probe due to non availability of clock for I2C controllers(Testing is exempted for I2C1 since it interfaces with power chip). G, Manjunath Kondaiah (5): OMAP3:I2C: Add device tree nodes for beagle board OMAP4:I2C: Add device tree nodes for panda board OMAP3: Beagle: Update beagle board file to use DT OMAP4: Panda: Update panda board file to use DT OMAP: I2C: Convert I2C driver to use device tree arch/arm/boot/dts/omap3-beagle-nunchuck.dts | 5 -- arch/arm/boot/dts/omap3-beagle.dts | 42 ++++++++++++++++++++ arch/arm/boot/dts/omap4-panda.dts | 57 +++++++++++++++++++++++++++ arch/arm/mach-omap2/board-omap3beagle.c | 24 +++++++++-- arch/arm/mach-omap2/board-omap4panda.c | 22 ++++++++++ drivers/i2c/busses/i2c-omap.c | 30 ++++++++++++++- 6 files changed, 170 insertions(+), 10 deletions(-) -- 1.7.4.1 -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
