diff options
Diffstat (limited to 'drivers/mfd/cros_ec_dev.c')
| -rw-r--r-- | drivers/mfd/cros_ec_dev.c | 42 |
1 files changed, 28 insertions, 14 deletions
diff --git a/drivers/mfd/cros_ec_dev.c b/drivers/mfd/cros_ec_dev.c index e2aae8918679..9f84a52b48d6 100644 --- a/drivers/mfd/cros_ec_dev.c +++ b/drivers/mfd/cros_ec_dev.c @@ -1,6 +1,6 @@ // SPDX-License-Identifier: GPL-2.0-or-later /* - * cros_ec_dev - expose the Chrome OS Embedded Controller to user-space + * ChromeOS Embedded Controller * * Copyright (C) 2014 Google, Inc. */ @@ -108,6 +108,10 @@ static const struct mfd_cell cros_ec_keyboard_leds_cells[] = { { .name = "cros-keyboard-leds", }, }; +static const struct mfd_cell cros_ec_ucsi_cells[] = { + { .name = "cros_ec_ucsi", }, +}; + static const struct cros_feature_to_cells cros_subdevices[] = { { .id = EC_FEATURE_CEC, @@ -125,9 +129,9 @@ static const struct cros_feature_to_cells cros_subdevices[] = { .num_cells = ARRAY_SIZE(cros_ec_rtc_cells), }, { - .id = EC_FEATURE_USB_PD, - .mfd_cells = cros_usbpd_charger_cells, - .num_cells = ARRAY_SIZE(cros_usbpd_charger_cells), + .id = EC_FEATURE_UCSI_PPM, + .mfd_cells = cros_ec_ucsi_cells, + .num_cells = ARRAY_SIZE(cros_ec_ucsi_cells), }, { .id = EC_FEATURE_HANG_DETECT, @@ -253,6 +257,21 @@ static int ec_device_probe(struct platform_device *pdev) } /* + * UCSI provides power supply information so we don't need to separately + * load the cros_usbpd_charger driver. + */ + if (cros_ec_check_features(ec, EC_FEATURE_USB_PD) && + !cros_ec_check_features(ec, EC_FEATURE_UCSI_PPM)) { + retval = mfd_add_hotplug_devices(ec->dev, + cros_usbpd_charger_cells, + ARRAY_SIZE(cros_usbpd_charger_cells)); + + if (retval) + dev_warn(ec->dev, "failed to add usbpd-charger: %d\n", + retval); + } + + /* * Lightbar is a special case. Newer devices support autodetection, * but older ones do not. */ @@ -346,29 +365,24 @@ static struct platform_driver cros_ec_dev_driver = { }, .id_table = cros_ec_id, .probe = ec_device_probe, - .remove_new = ec_device_remove, + .remove = ec_device_remove, }; static int __init cros_ec_dev_init(void) { int ret; - ret = class_register(&cros_class); + ret = class_register(&cros_class); if (ret) { pr_err(CROS_EC_DEV_NAME ": failed to register device class\n"); return ret; } - /* Register the driver */ ret = platform_driver_register(&cros_ec_dev_driver); - if (ret < 0) { + if (ret) { pr_warn(CROS_EC_DEV_NAME ": can't register driver: %d\n", ret); - goto failed_devreg; + class_unregister(&cros_class); } - return 0; - -failed_devreg: - class_unregister(&cros_class); return ret; } @@ -382,6 +396,6 @@ module_init(cros_ec_dev_init); module_exit(cros_ec_dev_exit); MODULE_AUTHOR("Bill Richardson <wfrichar@chromium.org>"); -MODULE_DESCRIPTION("Userspace interface to the Chrome OS Embedded Controller"); +MODULE_DESCRIPTION("ChromeOS Embedded Controller"); MODULE_VERSION("1.0"); MODULE_LICENSE("GPL"); |