[PATCH v8] leds: add support for TI LP5860 LED driver chip
From: Steffen Trumtrar
Date: Fri Apr 03 2026 - 08:08:23 EST
Add support for the Texas Instruments LP5860 LED driver chip
via SPI interfaces.
The LP5860 is an LED matrix driver for up to 196 LEDs, which supports
short and open detection of the individual channel select lines.
It can be connected to SPI or I2C bus. For now add support for SPI only.
Signed-off-by: Steffen Trumtrar <s.trumtrar@xxxxxxxxxxxxxx>
---
Changes in v8:
- Kconfig fix help text
- move header back to local folder
- remove unused gpio.h
- fix define used to check invalid dot usage
- fix led_brightness usage as boolean
- rename variable name led -> lp
- split subled iteration to function
- fail subled on missing color property
- set mc_brightness once after subleds are parsed
- rename *_OFFSET to *_SHIFT
- document uncommon regmap setup
- use dev_err_probe instead of dev_err to handle deferred probing
- Link to v7: https://lore.kernel.org/r/20260309-v6-14-topic-ti-lp5860-v7-1-b1ed6c6a47ce@xxxxxxxxxxxxxx
Changes in v7:
- s/spi/SPI/
- rebase to current leds-for-next (v7.0-rc1)
Changes since v6:
- fix compilation as module
- remove unnecessary select on FW_LOADER
- Link to v6: https://lore.kernel.org/r/20251201-v6-14-topic-ti-lp5860-v6-0-be9a21218157@xxxxxxxxxxxxxx
Changes since v5:
- Kconfig depends -> select
- change some function/variable names
- change line breaks (80char -> 100char)
- call led_init_default_state_get once
- rename index variable i -> led_index
- don't fail on missing dt-properties
- remove sysfs_create_group residue from v5
- Link to v5: https://lore.kernel.org/r/20251110-v6-14-topic-ti-lp5860-v5-0-5b777b99a905@xxxxxxxxxxxxxx
Changes since v4:
- remove global_brightness code and sysfs ABI
- rebase to v6.18-rc1
- Link to v4: https://lore.kernel.org/r/20251007-v6-14-topic-ti-lp5860-v4-0-967758069b60@xxxxxxxxxxxxxx
Changes since v3:
- move to drivers/leds/rgb
- fix some upper/lowercase
- use ATTRIBUTE_GROUPS macro
- unwrap some lines
- Link to v3: https://lore.kernel.org/r/20250911-v6-14-topic-ti-lp5860-v3-0-390738ef9d71@xxxxxxxxxxxxxx
Changes since v2:
- fix c-styling errors
- rename functions/defines/variables
- split out ABI documentation
- rename [rgb]_current* to [rgb]_global_brightness*
- rework multi-led probing
- Link to v2: https://lore.kernel.org/r/20250514-v6-14-topic-ti-lp5860-v2-0-72ecc8fa4ad7@xxxxxxxxxxxxxx
Changes since v1:
- add open and short detection
- add ABI documentation
- fix devicetree binding (maxItems/minItems)
- fix commit message to imperative mood
- minor cleanup
- Link to v1: https://lore.kernel.org/r/20250220-v6-14-topic-ti-lp5860-v1-0-42874bdc7513@xxxxxxxxxxxxxx
---
drivers/leds/rgb/Kconfig | 25 ++++
drivers/leds/rgb/Makefile | 2 +
drivers/leds/rgb/leds-lp5860-core.c | 219 +++++++++++++++++++++++++++++
drivers/leds/rgb/leds-lp5860-spi.c | 94 +++++++++++++
drivers/leds/rgb/leds-lp5860.h | 268 ++++++++++++++++++++++++++++++++++++
5 files changed, 608 insertions(+)
diff --git a/drivers/leds/rgb/Kconfig b/drivers/leds/rgb/Kconfig
index 28ef4c487367c..9a4ba6531cf87 100644
--- a/drivers/leds/rgb/Kconfig
+++ b/drivers/leds/rgb/Kconfig
@@ -39,6 +39,31 @@ config LEDS_LP5812
If unsure, say N.
+config LEDS_LP5860_CORE
+ tristate "Core Driver for TI LP5860"
+ depends on LEDS_CLASS
+ depends on OF
+ select REGMAP
+ help
+ This option supports common operations for LP5860 devices.
+ The LP5860 is a LED matrix driver with 18 constant current
+ sinks and 11 scan switches for 198 LED dots. Each dot can be
+ controlled individually and supports 8/16-bit PWM dimming.
+ The chip supports individual LED open and short detection.
+
+ The device can be used with SPI or I2C bus.
+
+config LEDS_LP5860_SPI
+ tristate "LED Support for TI LP5860 SPI LED driver chip"
+ depends on SPI
+ select LEDS_LP5860_CORE
+ help
+ If you say yes here you get support for the Texas Instruments
+ LP5860 LED driver for SPI bus connections.
+
+ To compile this driver as a module, choose M here: the
+ module will be called leds-lp5860-spi.
+
config LEDS_NCP5623
tristate "LED support for NCP5623"
depends on I2C
diff --git a/drivers/leds/rgb/Makefile b/drivers/leds/rgb/Makefile
index be45991f63f50..f3b365ea082d1 100644
--- a/drivers/leds/rgb/Makefile
+++ b/drivers/leds/rgb/Makefile
@@ -3,6 +3,8 @@
obj-$(CONFIG_LEDS_GROUP_MULTICOLOR) += leds-group-multicolor.o
obj-$(CONFIG_LEDS_KTD202X) += leds-ktd202x.o
obj-$(CONFIG_LEDS_LP5812) += leds-lp5812.o
+obj-$(CONFIG_LEDS_LP5860_CORE) += leds-lp5860-core.o
+obj-$(CONFIG_LEDS_LP5860_SPI) += leds-lp5860-spi.o
obj-$(CONFIG_LEDS_NCP5623) += leds-ncp5623.o
obj-$(CONFIG_LEDS_PWM_MULTICOLOR) += leds-pwm-multicolor.o
obj-$(CONFIG_LEDS_QCOM_LPG) += leds-qcom-lpg.o
diff --git a/drivers/leds/rgb/leds-lp5860-core.c b/drivers/leds/rgb/leds-lp5860-core.c
new file mode 100644
index 0000000000000..31eebaf0269ab
--- /dev/null
+++ b/drivers/leds/rgb/leds-lp5860-core.c
@@ -0,0 +1,219 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (c) 2025 Pengutronix
+ *
+ * Author: Steffen Trumtrar <kernel@xxxxxxxxxxxxxx>
+ */
+
+#include <linux/led-class-multicolor.h>
+#include <linux/module.h>
+#include <linux/of_platform.h>
+#include <linux/property.h>
+#include <linux/regmap.h>
+
+#include "leds-lp5860.h"
+
+static struct lp5860_led *mcled_cdev_to_led(struct led_classdev_mc *mc_cdev)
+{
+ return container_of(mc_cdev, struct lp5860_led, mc_cdev);
+}
+
+static int lp5860_set_dot_onoff(struct lp5860_led *led, unsigned int dot, bool enable)
+{
+ unsigned int offset = dot / LP5860_MAX_DOT_ONOFF_GROUP_NUM;
+ unsigned int mask = BIT(dot % LP5860_MAX_DOT_ONOFF_GROUP_NUM);
+
+ if (dot > LP5860_MAX_LED)
+ return -EINVAL;
+
+ return regmap_update_bits(led->chip->regmap,
+ LP5860_REG_DOT_ONOFF_START + offset, mask,
+ enable ? LP5860_DOT_ALL_ON : LP5860_DOT_ALL_OFF);
+}
+
+static int lp5860_set_mc_brightness(struct led_classdev *cdev,
+ enum led_brightness brightness)
+{
+ struct led_classdev_mc *mc_cdev = lcdev_to_mccdev(cdev);
+ struct lp5860_led *led = mcled_cdev_to_led(mc_cdev);
+
+ led_mc_calc_color_components(mc_cdev, brightness);
+
+ for (int i = 0; i < led->mc_cdev.num_colors; i++) {
+ unsigned int channel = mc_cdev->subled_info[i].channel;
+ unsigned int led_brightness = mc_cdev->subled_info[i].brightness;
+ int ret;
+
+ ret = lp5860_set_dot_onoff(led, channel, !!led_brightness);
+ if (ret)
+ return ret;
+
+ ret = regmap_write(led->chip->regmap,
+ LP5860_REG_PWM_BRI_START + channel, led_brightness);
+ if (ret)
+ return ret;
+ }
+
+ return 0;
+}
+
+static int lp5860_chip_enable(struct lp5860 *lp, bool enable)
+{
+ return regmap_write(lp->regmap, LP5860_REG_CHIP_EN, enable);
+}
+
+static int lp5860_led_init(struct lp5860_led *led, struct fwnode_handle *fwnode,
+ unsigned int channel)
+{
+ enum led_default_state default_state;
+ unsigned int brightness;
+ int ret;
+
+ ret = regmap_read(led->chip->regmap, LP5860_REG_PWM_BRI_START + channel, &brightness);
+ if (ret)
+ return ret;
+
+ default_state = led_init_default_state_get(fwnode);
+
+ switch (default_state) {
+ case LEDS_DEFSTATE_ON:
+ led->brightness = LP5860_MAX_BRIGHTNESS;
+ break;
+ case LEDS_DEFSTATE_KEEP:
+ led->brightness = min(brightness, LP5860_MAX_BRIGHTNESS);
+ break;
+ default:
+ led->brightness = 0;
+ break;
+ }
+
+ return 0;
+}
+
+static int lp5860_iterate_subleds(struct lp5860_led *led, struct led_init_data *init_data)
+{
+ struct fwnode_handle *led_node = NULL;
+ struct fwnode_handle *multi_led = init_data->fwnode;
+ int subled = 0;
+
+ fwnode_for_each_child_node(multi_led, led_node) {
+ u32 channel;
+ u32 color_index;
+ int ret;
+
+ ret = fwnode_property_read_u32(led_node, "color", &color_index);
+ if (ret) {
+ dev_err(led->chip->dev, "%pfwP: Cannot read 'color' property. Skipping.\n",
+ led_node);
+ fwnode_handle_put(led_node);
+ return ret;
+ }
+
+ ret = fwnode_property_read_u32(led_node, "reg", &channel);
+ if (ret < 0) {
+ dev_err(led->chip->dev, "%pfwP: 'reg' property is missing. Skipping.\n",
+ led_node);
+ fwnode_handle_put(led_node);
+ continue;
+ }
+
+ led->mc_cdev.subled_info[subled].color_index = color_index;
+ led->mc_cdev.subled_info[subled].channel = channel;
+ ret = lp5860_led_init(led, init_data->fwnode, channel);
+ if (ret) {
+ dev_err(led->chip->dev, "%pfwP: Failed to init LED\n", led);
+ return ret;
+ }
+
+ subled++;
+ }
+
+ return 0;
+}
+
+static int lp5860_init_dt(struct lp5860 *lp)
+{
+ struct led_init_data init_data = {};
+ struct led_classdev *led_cdev;
+ struct mc_subled *mc_led_info;
+ struct lp5860_led *led;
+ int led_index = 0;
+ int chan;
+ int ret;
+
+ device_for_each_child_node_scoped(lp->dev, multi_led) {
+ led = &lp->leds[led_index];
+
+ init_data.fwnode = multi_led;
+
+ /* Count the number of channels in this multi_led */
+ chan = fwnode_get_child_node_count(multi_led);
+ if (!chan || chan > LP5860_MAX_LED_CHANNELS)
+ return -EINVAL;
+
+ led->mc_cdev.num_colors = chan;
+
+ mc_led_info = devm_kcalloc(lp->dev, chan, sizeof(*mc_led_info), GFP_KERNEL);
+ if (!mc_led_info)
+ return -ENOMEM;
+
+ led->chip = lp;
+ led->mc_cdev.subled_info = mc_led_info;
+ led_cdev = &led->mc_cdev.led_cdev;
+ led_cdev->max_brightness = LP5860_MAX_BRIGHTNESS;
+ led_cdev->brightness_set_blocking = lp5860_set_mc_brightness;
+
+ ret = lp5860_iterate_subleds(led, &init_data);
+ if (ret)
+ continue;
+
+ ret = lp5860_set_mc_brightness(&led->mc_cdev.led_cdev, led->brightness);
+ if (ret) {
+ dev_err(lp->dev, "%pfwP: Failed to set Multi-Color brightness\n", multi_led);
+ return ret;
+ }
+
+ ret = devm_led_classdev_multicolor_register_ext(lp->dev, &led->mc_cdev, &init_data);
+ if (ret) {
+ dev_err(lp->dev, "%pfwP: Failed to register Multi-Color LEDs\n", multi_led);
+ return ret;
+ }
+ led_index++;
+ }
+
+ return 0;
+}
+
+int lp5860_device_init(struct device *dev)
+{
+ struct lp5860 *lp = dev_get_drvdata(dev);
+ int ret;
+
+ ret = lp5860_chip_enable(lp, LP5860_CHIP_ENABLE);
+ if (ret)
+ return ret;
+
+ /*
+ * Set to 8-bit PWM data without VSYNC.
+ * Data is sent out for display instantly after received.
+ */
+ ret = regmap_update_bits(lp->regmap, LP5860_REG_DEV_INITIAL, LP5860_MODE_MASK,
+ LP5860_MODE_1 << LP5860_MODE_SHIFT);
+ if (ret)
+ return ret;
+
+ return lp5860_init_dt(lp);
+}
+EXPORT_SYMBOL_GPL(lp5860_device_init);
+
+void lp5860_device_remove(struct device *dev)
+{
+ struct lp5860 *lp = dev_get_drvdata(dev);
+
+ lp5860_chip_enable(lp, LP5860_CHIP_DISABLE);
+}
+EXPORT_SYMBOL_GPL(lp5860_device_remove);
+
+MODULE_AUTHOR("Steffen Trumtrar <kernel@xxxxxxxxxxxxxx>");
+MODULE_DESCRIPTION("TI LP5860 RGB LED core driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/leds/rgb/leds-lp5860-spi.c b/drivers/leds/rgb/leds-lp5860-spi.c
new file mode 100644
index 0000000000000..7911698c89df1
--- /dev/null
+++ b/drivers/leds/rgb/leds-lp5860-spi.c
@@ -0,0 +1,94 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (c) 2025 Pengutronix
+ *
+ * Author: Steffen Trumtrar <kernel@xxxxxxxxxxxxxx>
+ */
+
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/platform_device.h>
+#include <linux/regmap.h>
+#include <linux/spi/spi.h>
+
+#include "leds-lp5860.h"
+
+#define LP5860_SPI_WRITE_FLAG BIT(13)
+
+/*
+ * The lp5860 uses a rather uncommon SPI data format: The R/W flag is on BIT(5) in the two address
+ * bytes; BIT(4) to BIT(0) are don't care. Therefore it has 10 bits for the address and 6 bits for
+ * padding the address. The address bytes are sent MSB first. Matching the cores registers to regmap
+ * results in write_flag_mask being BIT(13).
+ */
+static const struct regmap_config lp5860_regmap_config = {
+ .name = "lp5860",
+ .reg_bits = 10,
+ .pad_bits = 6,
+ .val_bits = 8,
+ .write_flag_mask = LP5860_SPI_WRITE_FLAG,
+ .reg_format_endian = REGMAP_ENDIAN_BIG,
+ .max_register = LP5860_MAX_REG,
+};
+
+static int lp5860_probe(struct spi_device *spi)
+{
+ struct device *dev = &spi->dev;
+ struct lp5860 *lp5860;
+ unsigned int multi_leds;
+
+ multi_leds = device_get_child_node_count(dev);
+ if (!multi_leds) {
+ dev_err(dev, "LEDs are not defined in Device Tree!");
+ return -ENODEV;
+ }
+
+ if (multi_leds > LP5860_MAX_LED) {
+ dev_err(dev, "Too many LEDs specified.\n");
+ return -EINVAL;
+ }
+
+ lp5860 = devm_kzalloc(dev, struct_size(lp5860, leds, multi_leds),
+ GFP_KERNEL);
+ if (!lp5860)
+ return -ENOMEM;
+
+ lp5860->leds_count = multi_leds;
+
+ lp5860->regmap = devm_regmap_init_spi(spi, &lp5860_regmap_config);
+ if (IS_ERR(lp5860->regmap))
+ return dev_err_probe(&spi->dev, PTR_ERR(lp5860->regmap),
+ "Failed to initialise Regmap.\n");
+
+ lp5860->dev = dev;
+
+ spi_set_drvdata(spi, lp5860);
+
+ return lp5860_device_init(dev);
+}
+
+static void lp5860_remove(struct spi_device *spi)
+{
+ lp5860_device_remove(&spi->dev);
+}
+
+static const struct of_device_id lp5860_of_match[] = {
+ { .compatible = "ti,lp5860" },
+ {}
+};
+MODULE_DEVICE_TABLE(of, lp5860_of_match);
+
+static struct spi_driver lp5860_driver = {
+ .driver = {
+ .name = "lp5860-spi",
+ .of_match_table = lp5860_of_match,
+ },
+ .probe = lp5860_probe,
+ .remove = lp5860_remove,
+};
+module_spi_driver(lp5860_driver);
+
+MODULE_AUTHOR("Steffen Trumtrar <kernel@xxxxxxxxxxxxxx>");
+MODULE_DESCRIPTION("TI LP5860 RGB LED SPI driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/leds/rgb/leds-lp5860.h b/drivers/leds/rgb/leds-lp5860.h
new file mode 100644
index 0000000000000..b3ad8c46720cd
--- /dev/null
+++ b/drivers/leds/rgb/leds-lp5860.h
@@ -0,0 +1,268 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (c) 2025 Pengutronix
+ *
+ * Author: Steffen Trumtrar <kernel@xxxxxxxxxxxxxx>
+ */
+
+#ifndef _DRIVERS_LEDS_RGB_LP5860_H
+#define _DRIVERS_LEDS_RGB_LP5860_H
+
+#include <linux/led-class-multicolor.h>
+#include <linux/regmap.h>
+
+#define LP5860_REG_CHIP_EN 0x00
+#define LP5860_REG_DEV_INITIAL 0x01
+#define LP5860_REG_DEV_CONFIG1 0x02
+#define LP5860_REG_DEV_CONFIG2 0x03
+#define LP5860_REG_DEV_CONFIG3 0x04
+#define LP5860_REG_GLOBAL_BRI 0x05
+#define LP5860_REG_GROUP0_BRI 0x06
+#define LP5860_REG_GROUP1_BRI 0x07
+#define LP5860_REG_GROUP2_BRI 0x08
+#define LP5860_REG_R_CURRENT_SET 0x09
+#define LP5860_REG_G_CURRENT_SET 0x0A
+#define LP5860_REG_B_CURRENT_SET 0x0B
+#define LP5860_REG_GRP_SEL_START 0x0C
+#define LP5860_REG_DOT_ONOFF_START 0x43
+#define LP5860_REG_DOT_ONOFF_MAX 0x63
+#define LP5860_REG_FAULT_STATE 0x64
+#define LP5860_REG_DOT_LOD_START 0x65
+#define LP5860_REG_DOT_LSD_START 0x86
+#define LP5860_REG_LOD_CLEAR 0xA7
+#define LP5860_REG_LSD_CLEAR 0xA8
+#define LP5860_REG_RESET 0xA9
+#define LP5860_REG_DC_START 0x0100
+#define LP5860_REG_PWM_BRI_START 0x0200
+#define LP5860_MAX_REG 0x038B
+
+/* Register chip_enable value */
+#define LP5860_CHIP_SHIFT 0
+#define LP5860_CHIP_MASK BIT(0)
+#define LP5860_CHIP_DISABLE false
+#define LP5860_CHIP_ENABLE true
+
+/* Register dev_initial value */
+#define LP5860_MAX_LINE_SHIFT 3
+#define LP5860_MAX_LINE_MASK GENMASK(6, 3)
+#define LP5860_MAX_LINE_11 0x0B
+#define LP5860_MAX_LINE_10 0x0A
+#define LP5860_MAX_LINE_9 0x09
+#define LP5860_MAX_LINE_8 0x08
+#define LP5860_MAX_LINE_7 0x07
+#define LP5860_MAX_LINE_6 0x06
+#define LP5860_MAX_LINE_5 0x05
+#define LP5860_MAX_LINE_4 0x04
+#define LP5860_MAX_LINE_3 0x03
+#define LP5860_MAX_LINE_2 0x02
+#define LP5860_MAX_LINE_1 0x01
+
+#define LP5860_MODE_SHIFT 1
+#define LP5860_MODE_MASK GENMASK(2, 1)
+#define LP5860_MODE_3_1 0x03
+#define LP5860_MODE_3 0x02
+#define LP5860_MODE_2 0x01
+#define LP5860_MODE_1 0x00
+
+#define LP5860_PWM_FREQUENCY_SHIFT 0
+#define LP5860_PWM_FREQUENCY_MASK BIT(0)
+#define LP5860_PWM_FREQUENCY_62_5K 0x01
+#define LP5860_PWM_FREQUENCY_125K 0x00
+
+/* Register dev_config1 value */
+#define LP5860_SW_BLK_SHIFT 3
+#define LP5860_SW_BLK_MASK BIT(3)
+#define LP5860_SW_BLK_05US 0x01
+#define LP5860_SW_BLK_1US 0x00
+
+#define LP5860_PWM_SCALE_MODE_SHIFT 2
+#define LP5860_PWM_SCALE_MODE_MASK BIT(2)
+#define LP5860_PWM_SCALE_EXPONENTIAL 0x01
+#define LP5860_PWM_SCALE_LINEAR 0x00
+
+#define LP5860_PWM_PHASESHIFT_SHIFT 1
+#define LP5860_PWM_PHASESHIFT_MASK BIT(1)
+#define LP5860_PWM_PHASESHIFT_ON 0x01
+#define LP5860_PWM_PHASESHIFT_OFF 0x00
+
+#define LP5860_CS_ON_SHIFT_SHIFT 0
+#define LP5860_CS_ON_SHIFT_MASK BIT(0)
+#define LP5860_CS_DELAY_ON 0x01
+#define LP5860_CS_DELAY_OFF 0x00
+
+/* Register dev_config2 value */
+#define LP5860_COMP_GROUP3_SHIFT 6
+#define LP5860_COMP_GROUP3_MASK GENMASK(7, 6)
+#define LP5860_COMP_GROUP3_3CLOCK 0x03
+#define LP5860_COMP_GROUP3_2CLOCK 0x02
+#define LP5860_COMP_GROUP3_1CLOCK 0x01
+#define LP5860_COMP_GROUP3_OFF 0x00
+
+#define LP5860_COMP_GROUP2_SHIFT 4
+#define LP5860_COMP_GROUP2_MASK GENMASK(5, 4)
+#define LP5860_COMP_GROUP2_3CLOCK 0x03
+#define LP5860_COMP_GROUP2_2CLOCK 0x02
+#define LP5860_COMP_GROUP2_1CLOCK 0x01
+#define LP5860_COMP_GROUP2_OFF 0x00
+
+#define LP5860_COMP_GROUP1_SHIFT 2
+#define LP5860_COMP_GROUP1_MASK GENMASK(3, 2)
+#define LP5860_COMP_GROUP1_3CLOCK 0x03
+#define LP5860_COMP_GROUP1_2CLOCK 0x02
+#define LP5860_COMP_GROUP1_1CLOCK 0x01
+#define LP5860_COMP_GROUP1_OFF 0x00
+
+#define LP5860_LOD_REMOVAL_SHIFT 1
+#define LP5860_LOD_REMOVAL_MASK BIT(1)
+#define LP5860_LOD_REMOVAL_EN 0x01
+#define LP5860_LOD_REMOVAL_OFF 0x00
+
+#define LP5860_LSD_REMOVAL_SHIFT 0
+#define LP5860_LSD_REMOVAL_MASK BIT(0)
+#define LP5860_LSD_REMOVAL_EN 0x01
+#define LP5860_LSD_REMOVAL_OFF 0x00
+
+/* Register dev_config3 value */
+#define LP5860_DOWN_DEGHOST_SHIFT 6
+#define LP5860_DOWN_DEGHOST_MASK GENMASK(7, 6)
+#define LP5860_DOWN_DEGHOST_STRONG 0x03
+#define LP5860_DOWN_DEGHOST_MEDIUM 0x02
+#define LP5860_DOWN_DEGHOST_WEAK 0x01
+#define LP5860_DOWN_DEGHOST_OFF 0x00
+
+#define LP5860_UP_DEGHOST_SHIFT 4
+#define LP5860_UP_DEGHOST_MASK GENMASK(5, 4)
+#define LP5860_UP_DEGHOST_GND 0x03
+#define LP5860_UP_DEGHOST_3 0x02
+#define LP5860_UP_DEGHOST_2_5 0x01
+#define LP5860_UP_DEGHOST_2 0x00
+
+#define LP5860_MAXIMUM_CURRENT_SHIFT 1
+#define LP5860_MAXIMUM_CURRENT_MASK GENMASK(3, 1)
+#define LP5860_MAXIMUM_CURRENT_50 0x07
+#define LP5860_MAXIMUM_CURRENT_40 0x06
+#define LP5860_MAXIMUM_CURRENT_30 0x05
+#define LP5860_MAXIMUM_CURRENT_20 0x04
+#define LP5860_MAXIMUM_CURRENT_15 0x03
+#define LP5860_MAXIMUM_CURRENT_10 0x02
+#define LP5860_MAXIMUM_CURRENT_5 0x01
+#define LP5860_MAXIMUM_CURRENT_3 0x00
+
+#define LP5860_UP_DEGHOST_ENABLE_SHIFT 0
+#define LP5860_UP_DEGHOST_ENABLE_MASK BIT(0)
+#define LP5860_UP_DEGHOST_ENABLE_EN 0x01
+#define LP5860_UP_DEGHOST_ENABLE_OFF 0x00
+
+/* Register PWM */
+#define LP5860_PWM_GLOBAL_MAX 0xff
+#define LP5860_PWM_GROUP_MAX 0xff
+
+/* Register CC group select */
+#define LP5860_CC_GROUP_MASK GENMASK(7, 0)
+#define LP5860_CC_GROUP_MAX 0x7F
+
+/* Register dot group select */
+#define LP5860_DOT_0_SHIFT 0
+#define LP5860_DOT_1_SHIFT 2
+#define LP5860_DOT_2_SHIFT 4
+#define LP5860_DOT_3_SHIFT 6
+
+#define LP5860_DOT_GROUP3 0x03
+#define LP5860_DOT_GROUP2 0x02
+#define LP5860_DOT_GROUP1 0x01
+#define LP5860_DOT_GROUP_NONE 0x00
+
+#define LP5860_DOT_ALL_ON 0xff
+#define LP5860_DOT_ALL_OFF 0x0
+#define LP5860_PWM_DOT_MAX 0xff
+/* Dot onoff value */
+#define LP5860_DOT_CS0_SHIFT 0
+#define LP5860_DOT_CS1_SHIFT 1
+#define LP5860_DOT_CS2_SHIFT 2
+#define LP5860_DOT_CS3_SHIFT 3
+#define LP5860_DOT_CS4_SHIFT 4
+#define LP5860_DOT_CS5_SHIFT 5
+#define LP5860_DOT_CS6_SHIFT 6
+#define LP5860_DOT_CS7_SHIFT 7
+
+#define LP5860_DOT_CS_ON 0x01
+#define LP5860_DOT_CS_OFF 0x00
+
+/* Dot lod value */
+#define LP5860_DOT_LOD0_SHIFT 0
+#define LP5860_DOT_LOD1_SHIFT 1
+#define LP5860_DOT_LOD2_SHIFT 2
+#define LP5860_DOT_LOD3_SHIFT 3
+#define LP5860_DOT_LOD4_SHIFT 4
+#define LP5860_DOT_LOD5_SHIFT 5
+#define LP5860_DOT_LOD6_SHIFT 6
+#define LP5860_DOT_LOD7_SHIFT 7
+
+#define LP5860_DOT_LOD_ON 0x01
+#define LP5860_DOT_LOD_OFF 0x00
+
+/* dot lsd value */
+#define LP5860_DOT_LSD0_SHIFT 0
+#define LP5860_DOT_LSD1_SHIFT 1
+#define LP5860_DOT_LSD2_SHIFT 2
+#define LP5860_DOT_LSD3_SHIFT 3
+#define LP5860_DOT_LSD4_SHIFT 4
+#define LP5860_DOT_LSD5_SHIFT 5
+#define LP5860_DOT_LSD6_SHIFT 6
+#define LP5860_DOT_LSD7_SHIFT 7
+
+#define LP5860_DOT_LSD_ON 0x01
+#define LP5860_DOT_LSD_OFF 0x00
+
+/* Register lod state */
+#define LP5860_GLOBAL_LOD_SHIFT 1
+#define LP5860_GLOBAL_LOD_STATE BIT(1)
+#define LP5860_GLOBAL_LSD_SHIFT 0
+#define LP5860_GLOBAL_LSD_STATE BIT(0)
+
+#define LP5860_FAULT_STATE_ON 0x01
+#define LP5860_FAULT_STATE_OFF 0x00
+
+#define LP5860_GLOBAL_LOD_CLEAR 0x00
+#define LP5860_GLOBAL_LSD_CLEAR 0x00
+
+
+#define LP5860_LOD_CLEAR_EN 0xff
+#define LP5860_LSD_CLEAR_EN 0xff
+#define LP5860_RESET_EN 0xff
+
+#define LP5860_MAX_BRIGHTNESS 255
+#define LP5860_REG_R_PWM 0x0
+#define LP5860_REG_G_PWM 0x1
+#define LP5860_REG_B_PWM 0x2
+
+#define LP5860_MAX_LED_CONSTANT 18
+#define LP5860_MAX_LED_SCAN 11
+#define LP5860_MAX_LED (LP5860_MAX_LED_CONSTANT * LP5860_MAX_LED_SCAN)
+
+#define LP5860_MAX_DOT_ONOFF_GROUP_NUM 8
+
+/*
+ * Theoretically, there is no max channel per LED,
+ * limit this to a reasonable value for RGBW LEDs
+ */
+#define LP5860_MAX_LED_CHANNELS 4
+
+struct lp5860_led {
+ struct lp5860 *chip;
+ struct led_classdev_mc mc_cdev;
+ u8 brightness;
+};
+
+struct lp5860 {
+ struct device *dev;
+ struct regmap *regmap;
+ unsigned int leds_count;
+
+ DECLARE_FLEX_ARRAY(struct lp5860_led, leds);
+};
+
+int lp5860_device_init(struct device *dev);
+void lp5860_device_remove(struct device *dev);
+
+#endif /* _DRIVERS_LEDS_RGB_LP5860_H */
---
base-commit: 6d98ea9e58f784757a843b480a6ecd688ccd5713
change-id: 20250219-v6-14-topic-ti-lp5860-f25a48b62c79
Best regards,
--
Steffen Trumtrar <s.trumtrar@xxxxxxxxxxxxxx>