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| author | Simon Glass <sjg@chromium.org> | 2015-08-03 14:19:24 (GMT) |
|---|---|---|
| committer | Simon Glass <sjg@chromium.org> | 2015-08-06 03:06:11 (GMT) |
| commit | f48eaf01b2f7212987166aae970b895c7e215466 (patch) | |
| tree | bd88667c12601647c556c16d91cfd52b0c576850 /drivers/i2c/Makefile | |
| parent | cc456bd7df06225819258dec9d4a5047e8da4952 (diff) | |
| download | u-boot-f48eaf01b2f7212987166aae970b895c7e215466.tar.xz | |
cros_ec: Support the LDO access method used by spring
Add a driver to support the special LDO access used by spring. This is a
custom method in the cros_ec protocol - it does not use an I2C
pass-through.
There are two implementation choices:
1. Write a special LDO driver which can talk across the EC. Duplicate all
the logic from TPS65090 for retrying when the LDO fails to come up.
2. Write a special I2C bus driver which pretends to be a TPS65090 and
transfers reads and writes using the LDO message.
Either is distasteful. The latter method is chosen since it results in less
code duplication and a fairly simple (30-line) implementation of the core
logic.
The crosec 'ldo' subcommand could be removed (since i2c md/mw will work
instead) but is retained as a convenience.
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 7f01fce..9b45248 100644 --- a/drivers/i2c/Makefile +++ b/drivers/i2c/Makefile @@ -8,6 +8,7 @@ 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_I2C_CROS_EC_TUNNEL) += cros_ec_tunnel.o +obj-$(CONFIG_I2C_CROS_EC_LDO) += cros_ec_ldo.o obj-$(CONFIG_SYS_I2C_ADI) += adi_i2c.o obj-$(CONFIG_I2C_MV) += mv_i2c.o |