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| author | Przemyslaw Marczak <p.marczak@samsung.com> | 2015-03-31 18:57:18 +0200 |
|---|---|---|
| committer | Simon Glass <sjg@chromium.org> | 2015-04-18 11:11:17 -0600 |
| commit | c54473cb25968be53e6b47527d5970b03a3cf41d (patch) | |
| tree | 3bd25bfae1d777030122a441f585b20ba42a427f /drivers/i2c/Makefile | |
| parent | 705fcf4de40383a47dc92c4c9d7dbeb37a9d1104 (diff) | |
dm: i2c: add i2c-gpio driver
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 <p.marczak@samsung.com>
Acked-by: Simon Glass <sjg@chromium.org>
Added braces in i2c_gpio_xfer() to fix style nit:
Signed-off-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'drivers/i2c/Makefile')
| -rw-r--r-- | drivers/i2c/Makefile | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/i2c/Makefile b/drivers/i2c/Makefile index 26ea854ec8..d9e912f786 100644 --- a/drivers/i2c/Makefile +++ b/drivers/i2c/Makefile @@ -6,6 +6,7 @@ # obj-$(CONFIG_DM_I2C) += i2c-uclass.o obj-$(CONFIG_DM_I2C_COMPAT) += i2c-uclass-compat.o +obj-$(CONFIG_DM_I2C_GPIO) += i2c-gpio.o obj-$(CONFIG_SYS_I2C_ADI) += adi_i2c.o obj-$(CONFIG_I2C_MV) += mv_i2c.o |