Merge branches 'ib-leds-mfd-6.11', 'ib-leds-platform-power-6.11' and 'ib-mfd-leds-platform-6.11' into ibs-for-leds-merged

drivers/leds/led-class-multicolor.c

···
 		return -EINVAL;
 
 	led_cdev = &mcled_cdev->led_cdev;
+	led_cdev->flags |= LED_MULTI_COLOR;
 	mcled_cdev->led_cdev.groups = led_multicolor_groups;
 
 	return led_classdev_register_ext(parent, led_cdev, init_data);

drivers/leds/led-class.c

···
 	ret = led_classdev_next_name(proposed_name, final_name, sizeof(final_name));
 	if (ret < 0)
 		return ret;
+	else if (ret && led_cdev->flags & LED_REJECT_NAME_CONFLICT)
+		return -EEXIST;
+	else if (ret)
+		dev_warn(parent, "Led %s renamed to %s due to name collision\n",
+			 proposed_name, final_name);
 
 	if (led_cdev->color >= LED_COLOR_ID_MAX)
 		dev_warn(parent, "LED %s color identifier out of range\n", final_name);
···
 	}
 	if (init_data && init_data->fwnode)
 		device_set_node(led_cdev->dev, init_data->fwnode);
-
-	if (ret)
-		dev_warn(parent, "Led %s renamed to %s due to name collision",
-				proposed_name, dev_name(led_cdev->dev));
 
 	if (led_cdev->flags & LED_BRIGHT_HW_CHANGED) {
 		ret = led_add_brightness_hw_changed(led_cdev);

drivers/leds/led-core.c

···
  */
 
 #include <linux/kernel.h>
+#include <linux/led-class-multicolor.h>
 #include <linux/leds.h>
 #include <linux/list.h>
 #include <linux/module.h>
···
 	return __led_set_brightness_blocking(led_cdev, led_cdev->brightness);
 }
 EXPORT_SYMBOL_GPL(led_set_brightness_sync);
+
+/*
+ * This is a led-core function because just like led_set_brightness()
+ * it is used in the kernel by e.g. triggers.
+ */
+void led_mc_set_brightness(struct led_classdev *led_cdev,
+			   unsigned int *intensity_value, unsigned int num_colors,
+			   unsigned int brightness)
+{
+	struct led_classdev_mc *mcled_cdev;
+	unsigned int i;
+
+	if (!(led_cdev->flags & LED_MULTI_COLOR)) {
+		dev_err_once(led_cdev->dev, "error not a multi-color LED\n");
+		return;
+	}
+
+	mcled_cdev = lcdev_to_mccdev(led_cdev);
+	if (num_colors != mcled_cdev->num_colors) {
+		dev_err_once(led_cdev->dev, "error num_colors mismatch %u != %u\n",
+			     num_colors, mcled_cdev->num_colors);
+		return;
+	}
+
+	for (i = 0; i < mcled_cdev->num_colors; i++)
+		mcled_cdev->subled_info[i].intensity = intensity_value[i];
+
+	led_set_brightness(led_cdev, brightness);
+}
+EXPORT_SYMBOL_GPL(led_mc_set_brightness);
 
 int led_update_brightness(struct led_classdev *led_cdev)
 {

drivers/leds/led-triggers.c

···
 }
 EXPORT_SYMBOL_GPL(led_trigger_event);
 
+void led_mc_trigger_event(struct led_trigger *trig,
+			  unsigned int *intensity_value, unsigned int num_colors,
+			  enum led_brightness brightness)
+{
+	struct led_classdev *led_cdev;
+
+	if (!trig)
+		return;
+
+	rcu_read_lock();
+	list_for_each_entry_rcu(led_cdev, &trig->led_cdevs, trig_list) {
+		if (!(led_cdev->flags & LED_MULTI_COLOR))
+			continue;
+
+		led_mc_set_brightness(led_cdev, intensity_value, num_colors, brightness);
+	}
+	rcu_read_unlock();
+}
+EXPORT_SYMBOL_GPL(led_mc_trigger_event);
+
 static void led_trigger_blink_setup(struct led_trigger *trig,
 			     unsigned long delay_on,
 			     unsigned long delay_off,

drivers/leds/rgb/Kconfig

···
 config LEDS_KTD202X
 	tristate "LED support for KTD202x Chips"
 	depends on I2C
-	depends on OF
 	select REGMAP_I2C
 	help
 	  This option enables support for the Kinetic KTD2026/KTD2027

drivers/leds/rgb/leds-ktd202x.c

···
 	struct device *dev;
 	struct regmap *regmap;
 	bool enabled;
-	int num_leds;
+	unsigned long num_leds;
 	struct ktd202x_led leds[] __counted_by(num_leds);
 };
 
···
 				 mc->num_colors);
 }
 
-static int ktd202x_setup_led_rgb(struct ktd202x *chip, struct device_node *np,
+static int ktd202x_setup_led_rgb(struct ktd202x *chip, struct fwnode_handle *fwnode,
 				 struct ktd202x_led *led, struct led_init_data *init_data)
 {
+	struct fwnode_handle *child;
 	struct led_classdev *cdev;
-	struct device_node *child;
 	struct mc_subled *info;
 	int num_channels;
 	int i = 0;
 
-	num_channels = of_get_available_child_count(np);
+	num_channels = 0;
+	fwnode_for_each_available_child_node(fwnode, child)
+		num_channels++;
+
 	if (!num_channels || num_channels > chip->num_leds)
 		return -EINVAL;
 
···
 	if (!info)
 		return -ENOMEM;
 
-	for_each_available_child_of_node(np, child) {
+	fwnode_for_each_available_child_node(fwnode, child) {
 		u32 mono_color;
 		u32 reg;
 		int ret;
 
-		ret = of_property_read_u32(child, "reg", &reg);
+		ret = fwnode_property_read_u32(child, "reg", &reg);
 		if (ret != 0 || reg >= chip->num_leds) {
-			dev_err(chip->dev, "invalid 'reg' of %pOFn\n", child);
-			of_node_put(child);
-			return -EINVAL;
+			dev_err(chip->dev, "invalid 'reg' of %pfw\n", child);
+			fwnode_handle_put(child);
+			return ret;
 		}
 
-		ret = of_property_read_u32(child, "color", &mono_color);
+		ret = fwnode_property_read_u32(child, "color", &mono_color);
 		if (ret < 0 && ret != -EINVAL) {
-			dev_err(chip->dev, "failed to parse 'color' of %pOF\n", child);
-			of_node_put(child);
+			dev_err(chip->dev, "failed to parse 'color' of %pfw\n", child);
+			fwnode_handle_put(child);
 			return ret;
 		}
 
···
 	return devm_led_classdev_multicolor_register_ext(chip->dev, &led->mcdev, init_data);
 }
 
-static int ktd202x_setup_led_single(struct ktd202x *chip, struct device_node *np,
+static int ktd202x_setup_led_single(struct ktd202x *chip, struct fwnode_handle *fwnode,
 				    struct ktd202x_led *led, struct led_init_data *init_data)
 {
 	struct led_classdev *cdev;
 	u32 reg;
 	int ret;
 
-	ret = of_property_read_u32(np, "reg", &reg);
+	ret = fwnode_property_read_u32(fwnode, "reg", &reg);
 	if (ret != 0 || reg >= chip->num_leds) {
-		dev_err(chip->dev, "invalid 'reg' of %pOFn\n", np);
+		dev_err(chip->dev, "invalid 'reg' of %pfw\n", fwnode);
 		return -EINVAL;
 	}
 	led->index = reg;
···
 	return devm_led_classdev_register_ext(chip->dev, &led->cdev, init_data);
 }
 
-static int ktd202x_add_led(struct ktd202x *chip, struct device_node *np, unsigned int index)
+static int ktd202x_add_led(struct ktd202x *chip, struct fwnode_handle *fwnode, unsigned int index)
 {
 	struct ktd202x_led *led = &chip->leds[index];
 	struct led_init_data init_data = {};
···
 	int ret;
 
 	/* Color property is optional in single color case */
-	ret = of_property_read_u32(np, "color", &color);
+	ret = fwnode_property_read_u32(fwnode, "color", &color);
 	if (ret < 0 && ret != -EINVAL) {
-		dev_err(chip->dev, "failed to parse 'color' of %pOF\n", np);
+		dev_err(chip->dev, "failed to parse 'color' of %pfw\n", fwnode);
 		return ret;
 	}
 
 	led->chip = chip;
-	init_data.fwnode = of_fwnode_handle(np);
+	init_data.fwnode = fwnode;
 
 	if (color == LED_COLOR_ID_RGB) {
 		cdev = &led->mcdev.led_cdev;
-		ret = ktd202x_setup_led_rgb(chip, np, led, &init_data);
+		ret = ktd202x_setup_led_rgb(chip, fwnode, led, &init_data);
 	} else {
 		cdev = &led->cdev;
-		ret = ktd202x_setup_led_single(chip, np, led, &init_data);
+		ret = ktd202x_setup_led_single(chip, fwnode, led, &init_data);
 	}
 
 	if (ret) {
···
 	return 0;
 }
 
-static int ktd202x_probe_dt(struct ktd202x *chip)
+static int ktd202x_probe_fw(struct ktd202x *chip)
 {
-	struct device_node *np = dev_of_node(chip->dev), *child;
+	struct fwnode_handle *child;
+	struct device *dev = chip->dev;
 	int count;
 	int i = 0;
 
-	chip->num_leds = (int)(unsigned long)of_device_get_match_data(chip->dev);
-
-	count = of_get_available_child_count(np);
+	count = device_get_child_node_count(dev);
 	if (!count || count > chip->num_leds)
 		return -EINVAL;
 
···
 	/* Allow the device to execute the complete reset */
 	usleep_range(200, 300);
 
-	for_each_available_child_of_node(np, child) {
+	device_for_each_child_node(dev, child) {
 		int ret = ktd202x_add_led(chip, child, i);
 
 		if (ret) {
-			of_node_put(child);
+			fwnode_handle_put(child);
 			return ret;
 		}
 		i++;
···
 		return ret;
 	}
 
+	ret = devm_mutex_init(dev, &chip->mutex);
+	if (ret)
+		return ret;
+
+	chip->num_leds = (unsigned long)i2c_get_match_data(client);
+
 	chip->regulators[0].supply = "vin";
 	chip->regulators[1].supply = "vio";
 	ret = devm_regulator_bulk_get(dev, ARRAY_SIZE(chip->regulators), chip->regulators);
···
 		return ret;
 	}
 
-	ret = ktd202x_probe_dt(chip);
+	ret = ktd202x_probe_fw(chip);
 	if (ret < 0) {
 		regulator_bulk_disable(ARRAY_SIZE(chip->regulators), chip->regulators);
 		return ret;
···
 		return ret;
 	}
 
-	mutex_init(&chip->mutex);
-
 	return 0;
 }
 
···
 	struct ktd202x *chip = i2c_get_clientdata(client);
 
 	ktd202x_chip_disable(chip);
-
-	mutex_destroy(&chip->mutex);
 }
 
 static void ktd202x_shutdown(struct i2c_client *client)
···
 	regmap_write(chip->regmap, KTD202X_REG_RESET_CONTROL, KTD202X_RSTR_RESET);
 }
 
+static const struct i2c_device_id ktd202x_id[] = {
+	{"ktd2026", KTD2026_NUM_LEDS},
+	{"ktd2027", KTD2027_NUM_LEDS},
+	{}
+};
+MODULE_DEVICE_TABLE(i2c, ktd202x_id);
+
 static const struct of_device_id ktd202x_match_table[] = {
 	{ .compatible = "kinetic,ktd2026", .data = (void *)KTD2026_NUM_LEDS },
 	{ .compatible = "kinetic,ktd2027", .data = (void *)KTD2027_NUM_LEDS },
-	{},
+	{}
 };
 MODULE_DEVICE_TABLE(of, ktd202x_match_table);
 
···
 	.probe = ktd202x_probe,
 	.remove = ktd202x_remove,
 	.shutdown = ktd202x_shutdown,
+	.id_table = ktd202x_id,
 };
 module_i2c_driver(ktd202x_driver);
 

drivers/mfd/cros_ec_dev.c

···
 	{ .name = "cros-ec-led", },
 };
 
+static const struct mfd_cell cros_ec_keyboard_leds_cells[] = {
+	{ .name = "cros-keyboard-leds", },
+};
+
 static const struct cros_feature_to_cells cros_subdevices[] = {
 	{
 		.id		= EC_FEATURE_CEC,
···
 		.id		= EC_FEATURE_LED,
 		.mfd_cells	= cros_ec_led_cells,
 		.num_cells	= ARRAY_SIZE(cros_ec_led_cells),
+	},
+	{
+		.id		= EC_FEATURE_PWM_KEYB,
+		.mfd_cells	= cros_ec_keyboard_leds_cells,
+		.num_cells	= ARRAY_SIZE(cros_ec_keyboard_leds_cells),
 	},
 };
 

drivers/platform/chrome/Kconfig

···
 
 config CROS_KBD_LED_BACKLIGHT
 	tristate "Backlight LED support for Chrome OS keyboards"
-	depends on LEDS_CLASS && (ACPI || CROS_EC)
+	depends on LEDS_CLASS && (ACPI || CROS_EC || MFD_CROS_EC_DEV)
 	help
 	  This option enables support for the keyboard backlight LEDs on
 	  select Chrome OS systems.

drivers/platform/chrome/cros_kbd_led_backlight.c

···
 #include <linux/init.h>
 #include <linux/kernel.h>
 #include <linux/leds.h>
+#include <linux/mfd/core.h>
 #include <linux/mod_devicetable.h>
 #include <linux/module.h>
 #include <linux/of.h>
···
 
 #endif /* IS_ENABLED(CONFIG_CROS_EC) */
 
+#if IS_ENABLED(CONFIG_MFD_CROS_EC_DEV)
+static int keyboard_led_init_ec_pwm_mfd(struct platform_device *pdev)
+{
+	struct cros_ec_dev *ec_dev = dev_get_drvdata(pdev->dev.parent);
+	struct cros_ec_device *cros_ec = ec_dev->ec_dev;
+	struct keyboard_led *keyboard_led = platform_get_drvdata(pdev);
+
+	keyboard_led->ec = cros_ec;
+
+	return 0;
+}
+
+static const struct keyboard_led_drvdata keyboard_led_drvdata_ec_pwm_mfd = {
+	.init = keyboard_led_init_ec_pwm_mfd,
+	.brightness_set_blocking = keyboard_led_set_brightness_ec_pwm,
+	.brightness_get = keyboard_led_get_brightness_ec_pwm,
+	.max_brightness = KEYBOARD_BACKLIGHT_MAX,
+};
+
+#else /* IS_ENABLED(CONFIG_MFD_CROS_EC_DEV) */
+
+static const struct keyboard_led_drvdata keyboard_led_drvdata_ec_pwm_mfd = {};
+
+#endif /* IS_ENABLED(CONFIG_MFD_CROS_EC_DEV) */
+
+static int keyboard_led_is_mfd_device(struct platform_device *pdev)
+{
+	return IS_ENABLED(CONFIG_MFD_CROS_EC_DEV) && mfd_get_cell(pdev);
+}
+
 static int keyboard_led_probe(struct platform_device *pdev)
 {
 	const struct keyboard_led_drvdata *drvdata;
 	struct keyboard_led *keyboard_led;
 	int error;
 
-	drvdata = device_get_match_data(&pdev->dev);
+	if (keyboard_led_is_mfd_device(pdev))
+		drvdata = &keyboard_led_drvdata_ec_pwm_mfd;
+	else
+		drvdata = device_get_match_data(&pdev->dev);
 	if (!drvdata)
 		return -EINVAL;
 
···
 	}
 
 	keyboard_led->cdev.name = "chromeos::kbd_backlight";
-	keyboard_led->cdev.flags |= LED_CORE_SUSPENDRESUME;
+	keyboard_led->cdev.flags |= LED_CORE_SUSPENDRESUME | LED_REJECT_NAME_CONFLICT;
 	keyboard_led->cdev.max_brightness = drvdata->max_brightness;
 	keyboard_led->cdev.brightness_set = drvdata->brightness_set;
 	keyboard_led->cdev.brightness_set_blocking = drvdata->brightness_set_blocking;
 	keyboard_led->cdev.brightness_get = drvdata->brightness_get;
 
 	error = devm_led_classdev_register(&pdev->dev, &keyboard_led->cdev);
+	if (error == -EEXIST) /* Already bound via other mechanism */
+		return -ENODEV;
 	if (error)
 		return error;
 

drivers/power/supply/power_supply_leds.c

···
 static void power_supply_update_bat_leds(struct power_supply *psy)
 {
 	union power_supply_propval status;
+	unsigned int intensity_green[3] = { 0, 255, 0 };
+	unsigned int intensity_orange[3] = { 255, 128, 0 };
 
 	if (power_supply_get_property(psy, POWER_SUPPLY_PROP_STATUS, &status))
 		return;
···
 		/* Going from blink to LED on requires a LED_OFF event to stop blink */
 		led_trigger_event(psy->charging_blink_full_solid_trig, LED_OFF);
 		led_trigger_event(psy->charging_blink_full_solid_trig, LED_FULL);
+		led_mc_trigger_event(psy->charging_orange_full_green_trig,
+				     intensity_green,
+				     ARRAY_SIZE(intensity_green),
+				     LED_FULL);
 		break;
 	case POWER_SUPPLY_STATUS_CHARGING:
 		led_trigger_event(psy->charging_full_trig, LED_FULL);
 		led_trigger_event(psy->charging_trig, LED_FULL);
 		led_trigger_event(psy->full_trig, LED_OFF);
 		led_trigger_blink(psy->charging_blink_full_solid_trig, 0, 0);
+		led_mc_trigger_event(psy->charging_orange_full_green_trig,
+				     intensity_orange,
+				     ARRAY_SIZE(intensity_orange),
+				     LED_FULL);
 		break;
 	default:
 		led_trigger_event(psy->charging_full_trig, LED_OFF);
 		led_trigger_event(psy->charging_trig, LED_OFF);
 		led_trigger_event(psy->full_trig, LED_OFF);
 		led_trigger_event(psy->charging_blink_full_solid_trig,
+			LED_OFF);
+		led_trigger_event(psy->charging_orange_full_green_trig,
 			LED_OFF);
 		break;
 	}
···
 	if (!psy->charging_blink_full_solid_trig_name)
 		goto charging_blink_full_solid_failed;
 
+	psy->charging_orange_full_green_trig_name = kasprintf(GFP_KERNEL,
+		"%s-charging-orange-full-green", psy->desc->name);
+	if (!psy->charging_orange_full_green_trig_name)
+		goto charging_red_full_green_failed;
+
 	led_trigger_register_simple(psy->charging_full_trig_name,
 				    &psy->charging_full_trig);
 	led_trigger_register_simple(psy->charging_trig_name,
···
 				    &psy->full_trig);
 	led_trigger_register_simple(psy->charging_blink_full_solid_trig_name,
 				    &psy->charging_blink_full_solid_trig);
+	led_trigger_register_simple(psy->charging_orange_full_green_trig_name,
+				    &psy->charging_orange_full_green_trig);
 
 	return 0;
 
+charging_red_full_green_failed:
+	kfree(psy->charging_blink_full_solid_trig_name);
 charging_blink_full_solid_failed:
 	kfree(psy->full_trig_name);
 full_failed:
···
 	led_trigger_unregister_simple(psy->charging_trig);
 	led_trigger_unregister_simple(psy->full_trig);
 	led_trigger_unregister_simple(psy->charging_blink_full_solid_trig);
+	led_trigger_unregister_simple(psy->charging_orange_full_green_trig);
 	kfree(psy->charging_blink_full_solid_trig_name);
 	kfree(psy->full_trig_name);
 	kfree(psy->charging_trig_name);
 	kfree(psy->charging_full_trig_name);
+	kfree(psy->charging_orange_full_green_trig_name);
 }
 
 /* Generated power specific LEDs triggers. */

include/linux/leds.h

···
 #define LED_BRIGHT_HW_CHANGED	BIT(21)
 #define LED_RETAIN_AT_SHUTDOWN	BIT(22)
 #define LED_INIT_DEFAULT_TRIGGER BIT(23)
+#define LED_REJECT_NAME_CONFLICT BIT(24)
+#define LED_MULTI_COLOR		BIT(25)
 
 	/* set_brightness_work / blink_timer flags, atomic, private. */
 	unsigned long		work_flags;
···
 int led_set_brightness_sync(struct led_classdev *led_cdev, unsigned int value);
 
 /**
+ * led_mc_set_brightness - set mc LED color intensity values and brightness
+ * @led_cdev: the LED to set
+ * @intensity_value: array of per color intensity values to set
+ * @num_colors: amount of entries in intensity_value array
+ * @brightness: the brightness to set the LED to
+ *
+ * Set a multi-color LED's per color intensity values and brightness.
+ * If necessary, this cancels the software blink timer. This function is
+ * guaranteed not to sleep.
+ *
+ * Calling this function on a non multi-color led_classdev or with the wrong
+ * num_colors value is an error. In this case an error will be logged once
+ * and the call will do nothing.
+ */
+void led_mc_set_brightness(struct led_classdev *led_cdev,
+			   unsigned int *intensity_value, unsigned int num_colors,
+			   unsigned int brightness);
+
+/**
  * led_update_brightness - update LED brightness
  * @led_cdev: the LED to query
  *
···
 				struct led_trigger **trigger);
 void led_trigger_unregister_simple(struct led_trigger *trigger);
 void led_trigger_event(struct led_trigger *trigger,  enum led_brightness event);
+void led_mc_trigger_event(struct led_trigger *trig,
+			  unsigned int *intensity_value, unsigned int num_colors,
+			  enum led_brightness brightness);
 void led_trigger_blink(struct led_trigger *trigger, unsigned long delay_on,
 		       unsigned long delay_off);
 void led_trigger_blink_oneshot(struct led_trigger *trigger,
···
 static inline void led_trigger_unregister_simple(struct led_trigger *trigger) {}
 static inline void led_trigger_event(struct led_trigger *trigger,
 				enum led_brightness event) {}
+static inline void led_mc_trigger_event(struct led_trigger *trig,
+				unsigned int *intensity_value, unsigned int num_colors,
+				enum led_brightness brightness) {}
 static inline void led_trigger_blink(struct led_trigger *trigger,
 				      unsigned long delay_on,
 				      unsigned long delay_off) {}

include/linux/power_supply.h

···
 	char *online_trig_name;
 	struct led_trigger *charging_blink_full_solid_trig;
 	char *charging_blink_full_solid_trig_name;
+	struct led_trigger *charging_orange_full_green_trig;
+	char *charging_orange_full_green_trig_name;
 #endif
 };