kernel/linux.git/drivers/mfd/cros_ec_dev.c, branch v6.18.21

mfd: cros_ec: Separate charge-control probing from USB-PD

2025-07-24T10:26:54+00:00

The charge-control subsystem in the ChromeOS EC is not strictly tied to its USB-PD subsystem. Since commit 7613bc0d116a ("mfd: cros_ec: Don't load charger with UCSI") the presence of EC_FEATURE_UCSI_PPM would inhibit the probing of the charge-control driver. Furthermore recent versions of the EC firmware in Framework laptops hard-disable EC_FEATURE_USB_PD to avoid probing cros-usbpd-charger, which then also breaks cros-charge-control. Instead use the dedicated EC_FEATURE_CHARGER. Cc: stable@vger.kernel.org Link: https://github.com/FrameworkComputer/EmbeddedController/commit/1d7bcf1d50137c8c01969eb65880bc83e424597e Fixes: 555b5fcdb844 ("mfd: cros_ec: Register charge control subdevice") Signed-off-by: Thomas Weißschuh Reviewed-by: Tzung-Bi Shih Tested-by: Tom Vincent Link: https://lore.kernel.org/r/20250521-cros-ec-mfd-chctl-probe-v1-1-6ebfe3a6efa7@weissschuh.net Signed-off-by: Lee Jones

mfd: Switch back to struct platform_driver::remove()

2024-11-01T15:56:58+00:00

After commit 0edb555a65d1 ("platform: Make platform_driver::remove() return void") .remove() is (again) the right callback to implement for platform drivers. Convert all platform drivers below drivers/mfd to use .remove(), with the eventual goal to drop struct platform_driver::remove_new(). As .remove() and .remove_new() have the same prototypes, conversion is done by just changing the structure member name in the driver initializer. On the way do a few whitespace changes to make indention consistent. Signed-off-by: Uwe Kleine-König Link: https://lore.kernel.org/r/20241025102943.250184-2-u.kleine-koenig@baylibre.com Signed-off-by: Lee Jones

mfd: cros_ec: Don't load charger with UCSI

2024-10-16T08:04:09+00:00

When UCSI is enabled, don't load cros_usbpd_charger and cros_usbpd_logger drivers. Charger functionality is provided by the UCSI driver already and logging will need to be added. Signed-off-by: Abhishek Pandit-Subedi Signed-off-by: Łukasz Bartosik Link: https://lore.kernel.org/r/20240910101527.603452-9-ukaszb@chromium.org Signed-off-by: Lee Jones

mfd: cros_ec: Load cros_ec_ucsi on supported ECs

2024-10-16T08:04:09+00:00

Load cros_ec_ucsi driver if the ChromeOS EC implements UCSI Platform Policy Manager (PPM). Signed-off-by: Pavan Holla Signed-off-by: Łukasz Bartosik Link: https://lore.kernel.org/r/20240910101527.603452-8-ukaszb@chromium.org Signed-off-by: Lee Jones

mfd: cros_ec: Update module description

2024-09-23T15:20:53+00:00

The module description can be backtracked to commit e7c256fbfb15 ("platform/chrome: Add Chrome OS EC userspace device interface"). The description became out-of-date after a bunch of changes e.g: - commit 5668bfdd90cd ("platform/chrome: cros_ec_dev - Register cros-ec sensors"). - commit ea01a31b9058 ("cros_ec: Split cros_ec_devs module"). - commit 5e0115581bbc ("cros_ec: Move cros_ec_dev module to drivers/mfd"). Update the description. Signed-off-by: Tzung-Bi Shih Link: https://lore.kernel.org/r/20240822121539.4265-1-tzungbi@kernel.org Signed-off-by: Lee Jones

mfd: cros_ec: Simplify and clean-up cros_ec_dev_init()

2024-09-23T15:20:53+00:00

Simplify cros_ec_dev_init() by the following changes: - Get rid of label `failed_devreg`. - Remove a redundant space and comment. - Use `if (ret)` instead of `if (ret < 0)`. Signed-off-by: Tzung-Bi Shih Link: https://lore.kernel.org/r/20240819102326.5235-1-tzungbi@kernel.org Signed-off-by: Lee Jones

mfd: cros_ec: Register hardware monitoring subdevice

2024-07-04T16:08:02+00:00

Add ChromeOS EC-based hardware monitoring as EC subdevice. Signed-off-by: Thomas Weißschuh Link: https://lore.kernel.org/r/20240529-cros_ec-hwmon-v4-3-5cdf0c5db50a@weissschuh.net Signed-off-by: Lee Jones

mfd: cros_ec: Register charge control subdevice

2024-07-04T16:08:02+00:00

Add ChromeOS EC-based charge control as EC subdevice. Signed-off-by: Thomas Weißschuh Link: https://lore.kernel.org/r/20240528-cros_ec-charge-control-v2-3-81fb27e1cff4@weissschuh.net Signed-off-by: Lee Jones

Merge branch 'ib-mfd-leds-platform-6.11' into ibs-for-mfd-merged

2024-07-04T16:07:01+00:00

mfd: cros_ec: Register LED subdevice

2024-06-21T10:41:51+00:00

Add ChromeOS EC-based LED control as EC subdevice. Signed-off-by: Thomas Weißschuh Link: https://lore.kernel.org/r/20240613-cros_ec-led-v3-5-500b50f41e0f@weissschuh.net Signed-off-by: Lee Jones