On 31 March 2015 at 10:57, Przemyslaw Marczak <[email protected]> wrote: > This commit adds driver model support to software emulated i2c bus driver. > This driver supports kernel-style device tree bindings. Fdt properties in use: > - compatible - "i2c-gpio" > - gpios - data and clock GPIO pin phandles > - delay-us - micro seconds delay between GPIOs toggle operations, > which is 1/4 of I2C speed clock period. > > Added: > - Config: CONFIG_DM_I2C_GPIO > - File: drivers/i2c/i2c-gpio.c > - File: doc/device-tree-bindings/i2c/i2c-gpio.txt > > Driver base code is taken from: drivers/i2c/soft-i2c.c, changes: > - use "i2c-gpio" naming > - update comments style > - move preprocesor macros into functions > - add device tree support > - add driver model i2c support > - code cleanup, > - add Kconfig entry > > Signed-off-by: Przemyslaw Marczak <[email protected]> > CC: Masahiro Yamada <[email protected]> > Cc: Lukasz Majewski <[email protected]> > Cc: Mike Frysinger <[email protected]> > Cc: Simon Glass <[email protected]> > Cc: Heiko Schocher <[email protected]> > > Changes V2: > - new file for software i2c driver: i2c-gpio.c > - update driver naming: use of "i2c-gpio" > - add full compatibility with the kernels device-tree "i2c-gpio" node > - fix Kconfig entry > > Changes V3: > - fix Kconfig entry > - update file header > - remove field "speed" from struct i2c_gpio_bus > - move macros to functions > - move duplicated routines into functions > - update naming with prefix "i2c_gpio_" > --- > doc/device-tree-bindings/i2c/i2c-gpio.txt | 37 ++++ > drivers/i2c/Kconfig | 9 + > drivers/i2c/Makefile | 1 + > drivers/i2c/i2c-gpio.c | 345 > ++++++++++++++++++++++++++++++ > 4 files changed, 392 insertions(+) > create mode 100644 doc/device-tree-bindings/i2c/i2c-gpio.txt > create mode 100644 drivers/i2c/i2c-gpio.c
Acked-by: Simon Glass <[email protected]> _______________________________________________ U-Boot mailing list [email protected] http://lists.denx.de/mailman/listinfo/u-boot
