u-boot.git/include/cros_ec.h, branch master

cros_ec: Complete the comment for cros_ec_read_batt_charge()

2022-04-06T18:01:42+00:00

Add the missing 'Return' information.

Signed-off-by: Simon Glass

doc: replace @return by Return:

2022-01-19T17:11:34+00:00

Sphinx expects Return: and not @return to indicate a return value.

find . -name '*.c' -exec \
sed -i 's/^\(\s\)\*\(\s*\)@return\(\s\)/\1*\2Return:\3/' {} \;

find . -name '*.h' -exec \
sed -i 's/^\(\s\)\*\(\s*\)@return\(\s\)/\1*\2Return:\3/' {} \;

Signed-off-by: Heinrich Schuchardt

cros_ec: Drop cros_ec_entering_mode()

2021-07-21T16:27:34+00:00

This function is not needed anymore. Drop it.

Signed-off-by: Simon Glass

cros_ec: Allow reading the battery-charge state

2021-07-21T16:27:34+00:00

Add a function to read this information from the EC. It is useful for
determining whether the battery has enough charge to boot.

Signed-off-by: Simon Glass

pwm: Add a driver for Chrome OS EC PWM

2021-04-10T14:08:39+00:00

This PWM is used in rk3399-gru-bob and rk3399-gru-kevin to control
the display brightness. We can only change the duty cycle, so on
set_config() we just try to match the duty cycle that dividing duty_ns
by period_ns gives us. To disable, we set the duty cycle to zero while
keeping the old value for when we want to re-enable it.

The cros_ec_set_pwm_duty() function is taken from Depthcharge's
cros_ec_set_bl_pwm_duty() but modified to use the generic pwm type.
The driver itself is very loosely based on rk_pwm.c for the general pwm
driver structure.

The devicetree binding file is from Linux, before it was converted to
YAML at 5df5a577a6b4 ("dt-bindings: pwm: Convert google,cros-ec-pwm.txt
to YAML format") in their repo.

Signed-off-by: Alper Nebi Yasak 
Reviewed-by: Simon Glass

cros_ec: Add vstore support

2021-01-30T21:25:41+00:00

The EC can store small amounts of data for the benefit of the
verified boot process. Since the EC is seldom reset, this can allow the
AP to store data that survives a reboot or a suspend/resume cycle.

Add support for this.

Signed-off-by: Simon Glass

cros_ec: Add support for switches

2021-01-30T21:25:41+00:00

On x86 platforms the EC provides a way to read 'switches', which are
on/off values determined by the EC.

Add a new driver method for this and implement it for LPC.

Signed-off-by: Simon Glass

cros_ec: Add documentation for cros_ec driver operations

2021-01-30T21:25:41+00:00

Add comments to these methods so it is documented in this central place,
not just in each driver.

Signed-off-by: Simon Glass

cros_ec: Support reading EC features

2021-01-30T21:25:41+00:00

The EC can support a variety of features and provides a way to find out
what is available. Add support for this.

Also update the feature list to the lastest available while we are here.
This is at:

   https://chromium.googlesource.com/chromiumos/platform/ec/+/refs/heads/master/include/ec_commands.h

Signed-off-by: Simon Glass

cros_ec: Add support for reading the SKU ID

2021-01-30T21:25:41+00:00

This allows reading strapping pins attached to the EC. Add an
implementation for this.

Signed-off-by: Simon Glass