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authorSimon Glass <sjg@chromium.org>2015-08-03 08:19:24 -0600
committerSimon Glass <sjg@chromium.org>2015-08-05 21:06:11 -0600
commitf48eaf01b2f7212987166aae970b895c7e215466 (patch)
treebd88667c12601647c556c16d91cfd52b0c576850 /drivers/i2c/Makefile
parentcc456bd7df06225819258dec9d4a5047e8da4952 (diff)
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/Makefile1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/i2c/Makefile b/drivers/i2c/Makefile
index 7f01fce2e74..9b45248e2e2 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