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

cros_ec: Convert dm_cros_ec_get_ops into an inline function and constify dm_cros_ec_ops

2026-06-29T21:29:44Z

Convert dm_cros_ec_get_ops into an inline function to improve compiler code coverage, and constify struct dm_cros_ec_ops in a few places. Signed-off-by: Marek Vasut Reviewed-by: Simon Glass

cros_ec: Sync ec_commands.h from upstream Chrome OS EC

2026-05-25T19:43:31Z

Sync include/ec_commands.h from upstream commit 4f3d17aa34 ("skywalker: set SLEEP_TIMEOUT_MS to 50 seconds"). The new file makes two build assumptions that do not hold for U-Boot. It hides '' from __KERNEL__ builds, leaving UINT16_MAX (used by EC_RES_MAX) undefined for U-Boot; widen the gate to '!defined(__KERNEL__) || defined(__UBOOT__)' It gates '' on '#ifdef __KERNEL__'; the matching '#else' branch defines BIT()/BIT_ULL()/GENMASK()/GENMASK_ULL() locally, assuming kernel headers provide those macros otherwise. U-Boot defines __KERNEL__ too but has no . Nest a '!defined(__UBOOT__)' check around the include so the __UBOOT__ path stays in the __KERNEL__ branch (no local BIT/GENMASK defines), which avoids redefinition warnings against U-Boot's linux/bitops.h. Pull in linux/bitops.h up front for U-Boot so the file's own BIT() and GENMASK() uses still resolve. Adapt callers to two interface changes. The 'ec_current_image' enum tag is now 'ec_image' (EC_IMAGE_* constants unchanged); rename it in affected files to match. The VBNV-context interface was dropped upstream, but it still used in lab Chromebooks; keep those constants and structs in cros_ec.h Likewise, MEC_EMI_BASE and MEC_EMI_SIZE are a U-Boot-local addition to ec_commands.h that the upstream sync removes; preserve them in cros_ec.h next to the VBNV block, and switch the only consumer (arch/x86/cpu/apollolake/cpu_spl.c) to include cros_ec.h Signed-off-by: Simon Glass

cros_ec: Complete the comment for cros_ec_read_batt_charge()

2022-04-06T18:01:42Z

Add the missing 'Return' information. Signed-off-by: Simon Glass

doc: replace @return by Return:

2022-01-19T17:11:34Z

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()

2021-07-21T16:27:34Z

This function is not needed anymore. Drop it. Signed-off-by: Simon Glass

cros_ec: Allow reading the battery-charge state

2021-07-21T16:27:34Z

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

2021-04-10T14:08:39Z

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

2021-01-30T21:25:41Z

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

2021-01-30T21:25:41Z

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

2021-01-30T21:25:41Z

Add comments to these methods so it is documented in this central place, not just in each driver. Signed-off-by: Simon Glass