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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 /include/cros_ec.h
parentcc456bd7df06225819258dec9d4a5047e8da4952 (diff)
downloadu-boot-f48eaf01b2f7212987166aae970b895c7e215466.tar.gz
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 'include/cros_ec.h')
-rw-r--r--include/cros_ec.h4
1 files changed, 2 insertions, 2 deletions
diff --git a/include/cros_ec.h b/include/cros_ec.h
index 41951c39b6..0ad9d81243 100644
--- a/include/cros_ec.h
+++ b/include/cros_ec.h
@@ -350,7 +350,7 @@ int cros_ec_read_build_info(struct cros_ec_dev *dev, char **strp);
* @param state new state of the LDO/FET : EC_LDO_STATE_ON|OFF
* @return 0 if ok, -1 on error
*/
-int cros_ec_set_ldo(struct cros_ec_dev *dev, uint8_t index, uint8_t state);
+int cros_ec_set_ldo(struct udevice *dev, uint8_t index, uint8_t state);
/**
* Read back a LDO / FET current state.
@@ -360,7 +360,7 @@ int cros_ec_set_ldo(struct cros_ec_dev *dev, uint8_t index, uint8_t state);
* @param state current state of the LDO/FET : EC_LDO_STATE_ON|OFF
* @return 0 if ok, -1 on error
*/
-int cros_ec_get_ldo(struct cros_ec_dev *dev, uint8_t index, uint8_t *state);
+int cros_ec_get_ldo(struct udevice *dev, uint8_t index, uint8_t *state);
/**
* Get access to the error reported when cros_ec_board_init() was called