drivers/mfd/cros_ec_dev.c

20 #define DRV_NAME "cros-ec-dev"
74 	{ .name = "cros-ec-cec", },
78 	{ .name = "cros-ec-gpio", },
82 	{ .name = "cros-ec-rtc", },
86 	{ .name = "cros-ec-sensorhub", },
99 	{ .name = "cros-ec-wdt", }
131 	{ .name = "cros-ec-chardev", },
132 	{ .name = "cros-ec-debugfs", },
133 	{ .name = "cros-ec-sysfs", },
137 	{ .name = "cros-ec-pchg", },
141 	{ .name = "cros-ec-lightbar", }
145 	{ .name = "cros-ec-vbc", }
159 	struct cros_ec_dev *ec = kzalloc(sizeof(*ec), GFP_KERNEL);
163 	if (!ec)
166 	dev_set_drvdata(dev, ec);
167 	ec->ec_dev = dev_get_drvdata(dev->parent);
168 	ec->dev = dev;
169 	ec->cmd_offset = ec_platform->cmd_offset;
170 	ec->features.flags[0] = -1U; /* Not cached yet */
171 	ec->features.flags[1] = -1U; /* Not cached yet */
172 	device_initialize(&ec->class_dev);
179 		if (cros_ec_check_features(ec, cros_mcu_devices[i].id)) {
194 	ec->class_dev.class = &cros_class;
195 	ec->class_dev.parent = dev;
196 	ec->class_dev.release = cros_ec_class_release;
198 	retval = dev_set_name(&ec->class_dev, "%s", ec_platform->ec_name);
204 	retval = device_add(&ec->class_dev);
209 	if (cros_ec_get_sensor_count(ec) > 0) {
210 		retval = mfd_add_hotplug_devices(ec->dev,
214 			dev_err(ec->dev, "failed to add %s subdevice: %d\n",
223 		if (cros_ec_check_features(ec, cros_subdevices[i].id)) {
224 			retval = mfd_add_hotplug_devices(ec->dev,
228 				dev_err(ec->dev,
239 	if (cros_ec_check_features(ec, EC_FEATURE_LIGHTBAR) ||
241 		retval = mfd_add_hotplug_devices(ec->dev,
245 			dev_warn(ec->dev, "failed to add lightbar: %d\n",
254 	if (IS_ENABLED(CONFIG_OF) && ec->ec_dev->dev->of_node) {
255 		if (cros_ec_check_features(ec, EC_FEATURE_USB_PD)) {
256 			retval = mfd_add_hotplug_devices(ec->dev,
260 				dev_err(ec->dev,
270 	retval = cros_ec_cmd(ec->ec_dev, 0, EC_CMD_PCHG_COUNT, NULL, 0,
273 		retval = mfd_add_hotplug_devices(ec->dev,
277 			dev_warn(ec->dev, "failed to add pchg: %d\n",
285 	retval = mfd_add_hotplug_devices(ec->dev, cros_ec_platform_cells,
288 		dev_warn(ec->dev,
289 			 "failed to add cros-ec platform devices: %d\n",
293 	node = ec->ec_dev->dev->of_node;
295 		retval = mfd_add_hotplug_devices(ec->dev, cros_ec_vbc_cells,
298 			dev_warn(ec->dev, "failed to add VBC devices: %d\n",
305 	put_device(&ec->class_dev);
311 	struct cros_ec_dev *ec = dev_get_drvdata(&pdev->dev);
313 	mfd_remove_devices(ec->dev);
314 	device_unregister(&ec->class_dev);