u-boot.git/drivers/misc/cros_ec.c, branch v2016.09

dm: Use dm_scan_fdt_dev() directly where possible

2016-07-27T20:15:54+00:00

Quite a few places have a bind() method which just calls dm_scan_fdt_dev().
We may as well call dm_scan_fdt_dev() directly. Update the code to do this.

Signed-off-by: Simon Glass

dm: Convert users from dm_scan_fdt_node() to dm_scan_fdt_dev()

2016-07-27T20:15:07+00:00

This new function is more convenient for callers, and handles pre-relocation
situations automatically.

Signed-off-by: Simon Glass

cros_ec: Use udevice instead of cros_ec_dev for keyboard functions

2015-11-20T03:13:40+00:00

In preparation for converting the cros_ec keyboard driver to driver model,
adjust the cros_ec functions it will use to use a normal struct udevice.

Signed-off-by: Simon Glass

cros_ec: Remove the old tunnel code

2015-08-06T03:06:16+00:00

This is not needed with driver mode. Remove it.

Signed-off-by: Simon Glass

cros_ec: Support the LDO access method used by spring

2015-08-06T03:06:11+00:00

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

dm: cros_ec: Convert the I2C tunnel code to use driver model

2015-08-06T03:06:11+00:00

The Chrome OS EC supports tunnelling through to an I2C bus on the EC. This
currently uses a copy of the I2C command code and a special 'crosec'
sub-command.

With driver model we can define an I2C bus which tunnels through to the EC,
and use the normal 'i2c' command to access it. This simplifies the code and
removes some duplication.

Add an I2C driver which tunnels through to the EC. Adjust the EC code to
support binding child devices so that it can be set up. Adjust the existing
I2C xfer function to fit driver model better.

For now the old code remains to allow things to still work. It will be
removed in a later patch once the new flow is fully enabled.

Signed-off-by: Simon Glass

cros_ec: Show the protocol version in the debug message

2015-05-06T02:58:18+00:00

When starting up, show the protocol version that has been negotiated with
the EC.

Signed-off-by: Simon Glass

cros_ec: Drop unused CONFIG_DM_CROS_EC

2015-04-18T17:11:15+00:00

Since all supported boards enable this option now, we can remove it along
with the old code.

Signed-off-by: Simon Glass

cros_ec: Reinit the cros_ec device when 'crosec init' is used

2015-04-18T17:11:15+00:00

This command is supposed to reinit the device. At present with driver
model is does nothing. Implement this feature.

Signed-off-by: Simon Glass

dm: cros_ec: Convert cros_ec LPC driver to driver model

2015-04-18T17:11:15+00:00

This is the last driver to be converted. It requires an LPC bus and a
special check_version() method.

Signed-off-by: Simon Glass