openwrt/target/linux/generic/backport-6.6/862-v6.10-leds-rgb-leds-ktd202x-i2c-id-tables-for-ktd2026-and-2027.patch
George Oldfort 56d97fff55 generic: backport support for KTD2026/7 rgb(w) led controller
This commit adds the Linux kernel mainline driver "leds-ktd202x" for the
KinetIC KTD2026 and KTD2027 RGB/RBGW controller with I2C interface that was
introduced in kernel version 6.7, last changed in mainline on 2024-05-31.

At least the Acer Connect Vero W6m (a variant of the Acer Predator Connect
W6 without 2.5G eth1 port, usb3 port, and the 6 on-board gpio RGB LEDs) is
equipped with a KTD2026 (and a single RGB LED attached to it used by the
stock firmware as status LED), and maybe other router devices also are.

Signed-off-by: George Oldfort <openwrt@10099.de>
Link: https://github.com/openwrt/openwrt/pull/16860
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
2024-11-28 21:59:58 +01:00

50 lines
1.7 KiB
Diff

From 75bd07aef47e1a984229e6ec702e8b9aee0226e4 Mon Sep 17 00:00:00 2001
From: Kate Hsuan <hpa@redhat.com>
Date: Fri, 31 May 2024 13:41:20 +0200
Subject: leds: rgb: leds-ktd202x: I2C ID tables for KTD2026 and 2027
Add an i2c_device_id id_table to match manually instantiated
(non device-tree / ACPI instantiated) KTD202x controllers as
found on some x86 boards.
This table shows the maximum support LED channel for KTD2026
(three LEDs) and KTD-2027 (4 LEDs).
Link: https://www.kinet-ic.com/uploads/KTD2026-7-04h.pdf
Signed-off-by: Kate Hsuan <hpa@redhat.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Andy Shevchenko <andy@kernel.org>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20240531114124.45346-3-hdegoede@redhat.com
Signed-off-by: Lee Jones <lee@kernel.org>
---
drivers/leds/rgb/leds-ktd202x.c | 8 ++++++++
1 file changed, 8 insertions(+)
(limited to 'drivers/leds/rgb')
--- a/drivers/leds/rgb/leds-ktd202x.c
+++ b/drivers/leds/rgb/leds-ktd202x.c
@@ -606,6 +606,13 @@ static void ktd202x_shutdown(struct i2c_
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 },
@@ -621,6 +628,7 @@ static struct i2c_driver ktd202x_driver
.probe = ktd202x_probe,
.remove = ktd202x_remove,
.shutdown = ktd202x_shutdown,
+ .id_table = ktd202x_id,
};
module_i2c_driver(ktd202x_driver);