diff --git a/Documentation/ABI/testing/sysfs-class-led-driver-turris1x b/Documentation/ABI/testing/sysfs-class-led-driver-turris1x
new file mode 100644
index 000000000000..bb8b82b43165
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-class-led-driver-turris1x
@@ -0,0 +1,31 @@
+What:		/sys/class/leds/<led>/device/brightness
+Date:		July 2022
+KernelVersion:	5.20
+Contact:	Pali Rohár <pali@kernel.org>
+Description:	(RW) On the back size of the Turris 1.x routers there is also
+		a button which can be used to control the intensity of all the
+		LEDs at once, so that if they are too bright, user can dim them.
+
+		The CPLD firmware cycles between 8 levels of this global
+		brightness (from 100% to 0%), but this setting can have any
+		integer value between 0 and 255. It is therefore convenient to be
+		able to change this setting from software.
+
+		Format: %u
+
+What:		/sys/class/leds/<led>/device/brightness_level
+Date:		July 2022
+KernelVersion:	5.20
+Contact:	Pali Rohár <pali@kernel.org>
+Description:	(RW) Current brightness level value (0-7).
+
+		Format: %u
+
+What:		/sys/class/leds/<led>/device/brightness_values
+Date:		July 2022
+KernelVersion:	5.20
+Contact:	Pali Rohár <pali@kernel.org>
+Description:	(RW) Values of all 8 levels between which CPLD firmware cycles
+		when brightness button is pressed.
+
+		Format: %u %u %u %u %u %u %u %u
diff --git a/drivers/leds/Kconfig b/drivers/leds/Kconfig
index a49979f41eee..71caf45c8ac3 100644
--- a/drivers/leds/Kconfig
+++ b/drivers/leds/Kconfig
@@ -157,6 +157,15 @@ config LEDS_EL15203000
 	  To compile this driver as a module, choose M here: the module
 	  will be called leds-el15203000.
 
+config LEDS_TURRIS_1X
+	tristate "LED support for CZ.NIC's Turris 1.x"
+	depends on LEDS_CLASS_MULTICOLOR
+	depends on OF
+	select LEDS_TRIGGERS
+	help
+	  This option enables support for LEDs found on the front side of
+	  CZ.NIC's Turris 1.x routers.
+
 config LEDS_TURRIS_OMNIA
 	tristate "LED support for CZ.NIC's Turris Omnia"
 	depends on LEDS_CLASS_MULTICOLOR
diff --git a/drivers/leds/Makefile b/drivers/leds/Makefile
index 4fd2f92cd198..de08083dbbca 100644
--- a/drivers/leds/Makefile
+++ b/drivers/leds/Makefile
@@ -82,6 +82,7 @@ obj-$(CONFIG_LEDS_TCA6507)		+= leds-tca6507.o
 obj-$(CONFIG_LEDS_TI_LMU_COMMON)	+= leds-ti-lmu-common.o
 obj-$(CONFIG_LEDS_TLC591XX)		+= leds-tlc591xx.o
 obj-$(CONFIG_LEDS_TPS6105X)		+= leds-tps6105x.o
+obj-$(CONFIG_LEDS_TURRIS_1X)		+= leds-turris-1x.o
 obj-$(CONFIG_LEDS_TURRIS_OMNIA)		+= leds-turris-omnia.o
 obj-$(CONFIG_LEDS_WM831X_STATUS)	+= leds-wm831x-status.o
 obj-$(CONFIG_LEDS_WM8350)		+= leds-wm8350.o
diff --git a/drivers/leds/leds-turris-1x.c b/drivers/leds/leds-turris-1x.c
new file mode 100644
index 000000000000..cf7567b64306
--- /dev/null
+++ b/drivers/leds/leds-turris-1x.c
@@ -0,0 +1,474 @@
+// SPDX-License-Identifier: GPL-2.0
+// (C) 2022 Pali Rohár <pali@kernel.org>
+//
+// CZ.NIC's Turris 1.x LEDs driver, controlled by CPLD firmware:
+// https://gitlab.nic.cz/turris/hw/turris_cpld/-/blob/master/CZ_NIC_Router_CPLD.v
+
+#include <linux/i2c.h>
+#include <linux/led-class-multicolor.h>
+#include <linux/module.h>
+#include <linux/mutex.h>
+#include <linux/of.h>
+#include <linux/platform_device.h>
+#include "leds.h"
+
+/* LED registers starts at byte 0x13 in CPLD memory map */
+#define TURRIS1X_LED_REG_OFF(reg) ((reg)-0x13)
+
+/* LEDs 1-5 share common register for setting brightness */
+#define TURRIS1X_LED_BRIGHTNESS_OFF(idx)	({ const u8 _idx = (idx) & 7; \
+						   (_idx == 0) ? 0 : \
+						   (_idx <= 5) ? 1 : \
+						   (_idx - 4); })
+
+#define TURRIS1X_LED_BRIGHTNESS_REG(idx, color)	TURRIS1X_LED_REG_OFF(0x13 + \
+						  3 * TURRIS1X_LED_BRIGHTNESS_OFF(idx) + \
+						  ((color) & 3))
+#define TURRIS1X_LED_GLOBAL_LEVEL_REG		TURRIS1X_LED_REG_OFF(0x20)
+#define TURRIS1X_LED_GET_GLOBAL_BRIGHTNESS_REG	TURRIS1X_LED_REG_OFF(0x21)
+#define TURRIS1X_LED_SW_OVERRIDE_REG		TURRIS1X_LED_REG_OFF(0x22)
+#define TURRIS1X_LED_SW_DISABLE_REG		TURRIS1X_LED_REG_OFF(0x23)
+#define TURRIS1X_LED_GLOBAL_BRIGHTNESS_REG(lvl)	TURRIS1X_LED_REG_OFF(0x28 + ((lvl) & 7))
+
+struct turris1x_led {
+	struct led_classdev_mc mc_cdev;
+	struct mc_subled subled_info[3];
+	u32 reg;
+	bool registered;
+};
+
+#define to_turris1x_led(l)	container_of(l, struct turris1x_led, mc_cdev)
+
+struct turris1x_leds {
+	void __iomem *regs;
+	struct mutex lock;
+	struct turris1x_led leds[8];
+};
+
+static struct led_hw_trigger_type turris1x_hw_trigger_type;
+
+static int turris1x_hwtrig_activate(struct led_classdev *cdev)
+{
+	struct turris1x_leds *leds = dev_get_drvdata(cdev->dev->parent);
+	struct turris1x_led *led = to_turris1x_led(lcdev_to_mccdev(cdev));
+	u8 val;
+
+	/* Disable software control of LED */
+	mutex_lock(&leds->lock);
+	val = readb(leds->regs + TURRIS1X_LED_SW_OVERRIDE_REG);
+	val &= ~BIT(led->reg);
+	writeb(val, leds->regs + TURRIS1X_LED_SW_OVERRIDE_REG);
+	mutex_unlock(&leds->lock);
+
+	return 0;
+}
+
+static void turris1x_hwtrig_deactivate(struct led_classdev *cdev)
+{
+	struct turris1x_leds *leds = dev_get_drvdata(cdev->dev->parent);
+	struct turris1x_led *led = to_turris1x_led(lcdev_to_mccdev(cdev));
+	u8 val;
+
+	/* Enable software control of LED */
+	mutex_lock(&leds->lock);
+	val = readb(leds->regs + TURRIS1X_LED_SW_OVERRIDE_REG);
+	val |= BIT(led->reg);
+	writeb(val, leds->regs + TURRIS1X_LED_SW_OVERRIDE_REG);
+	mutex_unlock(&leds->lock);
+}
+
+static struct led_trigger turris1x_hw_trigger = {
+	.name		= "turris1x-cpld",
+	.activate	= turris1x_hwtrig_activate,
+	.deactivate	= turris1x_hwtrig_deactivate,
+	.trigger_type	= &turris1x_hw_trigger_type,
+};
+
+static enum led_brightness turris1x_led_brightness_get(struct led_classdev *cdev)
+{
+	struct led_classdev_mc *mc_cdev = lcdev_to_mccdev(cdev);
+	struct turris1x_leds *leds = dev_get_drvdata(cdev->dev->parent);
+	struct turris1x_led *led = to_turris1x_led(mc_cdev);
+
+	if (!(readb(leds->regs + TURRIS1X_LED_SW_OVERRIDE_REG) & BIT(led->reg)))
+		return 1;
+	else if (!(readb(leds->regs + TURRIS1X_LED_SW_DISABLE_REG) & BIT(led->reg)))
+		return 1;
+	else
+		return 0;
+}
+
+static void turris1x_led_brightness_set(struct led_classdev *cdev,
+					enum led_brightness brightness)
+{
+	struct led_classdev_mc *mc_cdev = lcdev_to_mccdev(cdev);
+	struct turris1x_leds *leds = dev_get_drvdata(cdev->dev->parent);
+	struct turris1x_led *led = to_turris1x_led(mc_cdev);
+	int i, j;
+	u8 val;
+
+	mutex_lock(&leds->lock);
+
+	/* Set new brightness value for each color when LED is enabled */
+	if (brightness) {
+		led_mc_calc_color_components(mc_cdev, brightness);
+		for (i = 0; i < ARRAY_SIZE(led->subled_info); i++)
+			writeb(mc_cdev->subled_info[i].brightness,
+			       leds->regs + TURRIS1X_LED_BRIGHTNESS_REG(led->reg, i));
+
+		/*
+		 * LEDs 1-5 (LAN) share common color settings in same sets
+		 * of HW registers and therefore it is not possible to set
+		 * different colors. So when chaning color of one LED then
+		 * reflect color change for all of them.
+		 */
+		if (led->reg >= 1 && led->reg <= 5) {
+			for (j = 0; j < ARRAY_SIZE(leds->leds); j++) {
+				if (leds->leds[j].reg < 1 ||
+				    leds->leds[j].reg > 5 ||
+				    leds->leds[j].reg == led->reg)
+					continue;
+				for (i = 0; i < ARRAY_SIZE(led->subled_info); i++)
+					leds->leds[j].mc_cdev.subled_info[i].intensity =
+						mc_cdev->subled_info[i].intensity;
+			}
+		}
+	}
+
+	/* Enable / disable LED for software control */
+	val = readb(leds->regs + TURRIS1X_LED_SW_DISABLE_REG);
+	if (brightness && (val & BIT(led->reg)))
+		writeb(val & ~BIT(led->reg),
+		       leds->regs + TURRIS1X_LED_SW_DISABLE_REG);
+	else if (!brightness && !(val & BIT(led->reg)))
+		writeb(val | BIT(led->reg),
+		       leds->regs + TURRIS1X_LED_SW_DISABLE_REG);
+
+	mutex_unlock(&leds->lock);
+}
+
+static int turris1x_led_register(struct device *dev, struct turris1x_leds *leds,
+				 struct device_node *np, u8 val_sw_override,
+				 u8 val_sw_disable)
+{
+	struct led_init_data init_data = {};
+	struct led_classdev *cdev;
+	struct turris1x_led *led;
+	int ret, color;
+	u32 reg;
+	int i;
+
+	const unsigned int colors[ARRAY_SIZE(led->subled_info)] = {
+		LED_COLOR_ID_RED, LED_COLOR_ID_GREEN, LED_COLOR_ID_BLUE
+	};
+
+	ret = of_property_read_u32(np, "reg", &reg);
+	if (ret || reg >= ARRAY_SIZE(leds->leds)) {
+		dev_err(dev,
+			"Node %pOF: must contain 'reg' property with values between 0 and %u\n",
+			np, (unsigned int)ARRAY_SIZE(leds->leds) - 1);
+		return -EINVAL;
+	}
+
+	ret = of_property_read_u32(np, "color", &color);
+	if (ret || color != LED_COLOR_ID_RGB) {
+		dev_err(dev,
+			"Node %pOF: must contain 'color' property with value LED_COLOR_ID_RGB\n",
+			np);
+		return -EINVAL;
+	}
+
+	led = &leds->leds[reg];
+
+	if (led->registered) {
+		dev_err(dev, "Node %pOF: duplicate 'reg' property %u\n",
+			     np, reg);
+		return -EINVAL;
+	}
+
+	led->registered = true;
+	led->reg = reg;
+
+	/* Set initial colors to what are currently in use */
+	for (i = 0; i < ARRAY_SIZE(led->subled_info); i++) {
+		led->subled_info[i].intensity =
+			readb(leds->regs + TURRIS1X_LED_BRIGHTNESS_REG(reg, i));
+		led->subled_info[i].color_index = colors[i];
+		led->subled_info[i].channel = i;
+	}
+
+	led->mc_cdev.subled_info = led->subled_info;
+	led->mc_cdev.num_colors = ARRAY_SIZE(led->subled_info);
+
+	init_data.fwnode = &np->fwnode;
+
+	cdev = &led->mc_cdev.led_cdev;
+	cdev->max_brightness = 1;
+	cdev->brightness_get = turris1x_led_brightness_get;
+	cdev->brightness_set = turris1x_led_brightness_set;
+
+	/* All LEDs except LED 6 (WiFi) can be controller by hardware trigger */
+	if (reg != 6)
+		cdev->trigger_type = &turris1x_hw_trigger_type;
+
+	/* Disable hardware trigger for LED 6 (WiFi) - allow software control */
+	if (reg == 6 && !(val_sw_override & BIT(6))) {
+		if (!(val_sw_disable & BIT(6))) {
+			val_sw_disable |= BIT(6);
+			writeb(val_sw_disable,
+			       leds->regs + TURRIS1X_LED_SW_DISABLE_REG);
+		}
+		val_sw_override |= BIT(6);
+		writeb(val_sw_override,
+		       leds->regs + TURRIS1X_LED_SW_OVERRIDE_REG);
+	}
+
+	if (!(val_sw_override & BIT(reg)))
+		cdev->default_trigger = turris1x_hw_trigger.name;
+
+	if (!(val_sw_override & BIT(reg)) || !(val_sw_disable & BIT(reg)))
+		cdev->brightness = 1;
+
+	ret = devm_led_classdev_multicolor_register_ext(dev, &led->mc_cdev,
+							&init_data);
+	if (ret) {
+		dev_err(dev, "Cannot register LED %pOF: %i\n", np, ret);
+		return ret;
+	}
+
+	return 0;
+}
+
+static ssize_t brightness_show(struct device *dev, struct device_attribute *a,
+			       char *buf)
+{
+	struct turris1x_leds *leds = dev_get_drvdata(dev);
+	unsigned int brightness;
+
+	/*
+	 * Current brightness value is available in read-only register
+	 * TURRIS1X_LED_GET_GLOBAL_BRIGHTNESS_REG. Equivalent code is:
+	 * level = readb(leds->regs + TURRIS1X_LED_GLOBAL_LEVEL_REG) & 7;
+	 * brightness = readb(leds->regs + TURRIS1X_LED_GLOBAL_BRIGHTNESS_REG(level));
+	 */
+	brightness = readb(leds->regs + TURRIS1X_LED_GET_GLOBAL_BRIGHTNESS_REG);
+
+	return sprintf(buf, "%u\n", brightness);
+}
+
+static ssize_t brightness_store(struct device *dev, struct device_attribute *a,
+				const char *buf, size_t count)
+{
+	struct turris1x_leds *leds = dev_get_drvdata(dev);
+	int best_error, error, level, value;
+	unsigned long brightness;
+	u8 best_level;
+
+	if (kstrtoul(buf, 10, &brightness))
+		return -EINVAL;
+
+	if (brightness > 255)
+		return -EINVAL;
+
+	/*
+	 * Brightness can be set only to one of 8 predefined value levels
+	 * available in TURRIS1X_LED_GLOBAL_BRIGHTNESS_REG(level) registers.
+	 * Choose level which has nearest value to the specified brightness.
+	 */
+	best_level = 0;
+	best_error = INT_MAX;
+	for (level = 0; level < 8; level++) {
+		value = readb(leds->regs +
+			      TURRIS1X_LED_GLOBAL_BRIGHTNESS_REG(level));
+		error = abs(value - (int)brightness);
+		if (best_error > error) {
+			best_error = error;
+			best_level = level;
+		}
+	}
+
+	writeb(best_level, leds->regs + TURRIS1X_LED_GLOBAL_LEVEL_REG);
+
+	return count;
+}
+static DEVICE_ATTR_RW(brightness);
+
+static ssize_t brightness_level_show(struct device *dev,
+				     struct device_attribute *a, char *buf)
+{
+	struct turris1x_leds *leds = dev_get_drvdata(dev);
+	unsigned int level;
+
+	level = readb(leds->regs + TURRIS1X_LED_GLOBAL_LEVEL_REG) & 7;
+
+	return sprintf(buf, "%u\n", level);
+}
+
+static ssize_t brightness_level_store(struct device *dev,
+				      struct device_attribute *a,
+				      const char *buf, size_t count)
+{
+	struct turris1x_leds *leds = dev_get_drvdata(dev);
+	unsigned long level;
+
+	if (kstrtoul(buf, 10, &level))
+		return -EINVAL;
+
+	if (level > 7)
+		return -EINVAL;
+
+	writeb(level, leds->regs + TURRIS1X_LED_GLOBAL_LEVEL_REG);
+
+	return count;
+}
+static DEVICE_ATTR_RW(brightness_level);
+
+static ssize_t brightness_values_show(struct device *dev,
+				      struct device_attribute *a, char *buf)
+{
+	struct turris1x_leds *leds = dev_get_drvdata(dev);
+	unsigned int vals[8];
+	int i;
+
+	for (i = 0; i < 8; i++)
+		vals[i] = readb(leds->regs +
+				TURRIS1X_LED_GLOBAL_BRIGHTNESS_REG(i));
+
+	return sprintf(buf, "%u %u %u %u %u %u %u %u\n", vals[0], vals[1],
+		       vals[2], vals[3], vals[4], vals[5], vals[6], vals[7]);
+}
+
+static ssize_t brightness_values_store(struct device *dev,
+				       struct device_attribute *a,
+				       const char *buf, size_t count)
+{
+	struct turris1x_leds *leds = dev_get_drvdata(dev);
+	unsigned int vals[8];
+	int nchars;
+	int i;
+
+	if (sscanf(buf, "%u %u %u %u %u %u %u %u%n", &vals[0], &vals[1],
+		   &vals[2], &vals[3], &vals[4], &vals[5], &vals[6], &vals[7],
+		   &nchars) != 8 || nchars + 1 < count)
+		return -EINVAL;
+
+	for (i = 0; i < 8; i++)
+		writeb(vals[i],
+		       leds->regs + TURRIS1X_LED_GLOBAL_BRIGHTNESS_REG(i));
+
+	return count;
+}
+static DEVICE_ATTR_RW(brightness_values);
+
+static struct attribute *turris1x_leds_controller_attrs[] = {
+	&dev_attr_brightness.attr,
+	&dev_attr_brightness_level.attr,
+	&dev_attr_brightness_values.attr,
+	NULL,
+};
+ATTRIBUTE_GROUPS(turris1x_leds_controller);
+
+static int turris1x_leds_probe(struct platform_device *pdev)
+{
+	struct device *dev = &pdev->dev;
+	struct device_node *np = dev_of_node(dev);
+	struct device_node *child;
+	struct turris1x_leds *leds;
+	struct resource *res;
+	void __iomem *regs;
+	u8 val_sw_override;
+	u8 val_sw_disable;
+	int ret;
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	if (!res)
+		return -ENODEV;
+
+	regs = devm_ioremap_resource(dev, res);
+	if (IS_ERR(regs))
+		return PTR_ERR(regs);
+
+	leds = devm_kzalloc(dev, sizeof(*leds), GFP_KERNEL);
+	if (!leds)
+		return -ENOMEM;
+
+	platform_set_drvdata(pdev, leds);
+
+	leds->regs = regs;
+	mutex_init(&leds->lock);
+
+	ret = devm_led_trigger_register(dev, &turris1x_hw_trigger);
+	if (ret) {
+		dev_err(dev, "Cannot register private LED trigger: %d\n", ret);
+		return ret;
+	}
+
+	val_sw_override = readb(leds->regs + TURRIS1X_LED_SW_OVERRIDE_REG);
+	val_sw_disable = readb(leds->regs + TURRIS1X_LED_SW_DISABLE_REG);
+
+	for_each_available_child_of_node(np, child) {
+		ret = turris1x_led_register(dev, leds, child,
+					    val_sw_override, val_sw_disable);
+		if (ret) {
+			of_node_put(child);
+			return ret;
+		}
+	}
+
+	ret = devm_device_add_groups(dev, turris1x_leds_controller_groups);
+	if (ret) {
+		dev_err(dev, "Could not add attribute group!\n");
+		return ret;
+	}
+
+	return 0;
+}
+
+static void turris1x_leds_shutdown(struct platform_device *pdev)
+{
+	struct turris1x_leds *leds = platform_get_drvdata(pdev);
+	int i, j;
+	u8 val;
+
+	/*
+	 * LED registers are persisent across board resets.
+	 * So reset LEDs to default state before kernel reboots.
+	 */
+
+	/* Disable software control of all LEDs except LED 6 (WiFi) */
+	writeb(BIT(6), leds->regs + TURRIS1X_LED_SW_OVERRIDE_REG);
+
+	/* Turn off LED 6 (WiFi) as there is no hardware trigger for it */
+	val = readb(leds->regs + TURRIS1X_LED_SW_DISABLE_REG);
+	writeb(val | BIT(6), leds->regs + TURRIS1X_LED_SW_DISABLE_REG);
+
+	/* Reset colors of all LEDs to default values */
+	for (i = 0; i < ARRAY_SIZE(leds->leds); i++) {
+		/* Skip LAN2-LAN5 LEDs which share color register with LAN1 */
+		if (i >= 2 && i <= 5)
+			continue;
+		for (j = 0; j < ARRAY_SIZE(leds->leds[i].subled_info); j++)
+			writeb(0xff,
+			       leds->regs + TURRIS1X_LED_BRIGHTNESS_REG(i, j));
+	}
+}
+
+static const struct of_device_id of_turris1x_leds_match[] = {
+	{ .compatible = "cznic,turris1x-leds" },
+	{},
+};
+
+static struct platform_driver turris1x_leds_driver = {
+	.probe = turris1x_leds_probe,
+	.shutdown = turris1x_leds_shutdown,
+	.driver = {
+		.name = "turris1x_leds",
+		.of_match_table = of_turris1x_leds_match,
+	},
+};
+module_platform_driver(turris1x_leds_driver);
+
+MODULE_AUTHOR("Pali Rohár <pali@kernel.org>");
+MODULE_DESCRIPTION("CZ.NIC's Turris 1.x LEDs");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:turris1x_leds");
