mirror of
https://github.com/torvalds/linux.git
synced 2026-03-08 03:24:45 +01:00
dt-bindings: leds: add TI/National Semiconductor LP5812 LED Driver
The LP5812 is a 4x3 RGB LED driver with an autonomous animation engine and time-cross-multiplexing (TCM) support for up to 12 LEDs or 4 RGB LEDs. It supports both analog (256 levels) and PWM (8-bit) dimming, including exponential PWM for smooth brightness control. Reviewed-by: Rob Herring (Arm) <robh@kernel.org> Signed-off-by: Nam Tran <trannamatk@gmail.com> Link: https://patch.msgid.link/20251221041950.4631-2-trannamatk@gmail.com Signed-off-by: Lee Jones <lee@kernel.org>
This commit is contained in:
Nam Tran
Lee Jones
parent
a18983b95a
commit
2fe4df9fa9
2 changed files with 252 additions and 0 deletions
246
Documentation/devicetree/bindings/leds/ti,lp5812.yaml
Normal file
246
Documentation/devicetree/bindings/leds/ti,lp5812.yaml
Normal file
|
|
@ -0,0 +1,246 @@
|
|||
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
|
||||
%YAML 1.2
|
||||
---
|
||||
$id: http://devicetree.org/schemas/leds/ti,lp5812.yaml#
|
||||
$schema: http://devicetree.org/meta-schemas/core.yaml#
|
||||
|
||||
title: TI LP5812 4x3 Matrix RGB LED Driver with Autonomous Control
|
||||
|
||||
maintainers:
|
||||
- Nam Tran <trannamatk@gmail.com>
|
||||
|
||||
description: |
|
||||
The LP5812 is a 4x3 matrix RGB LED driver with I2C interface
|
||||
and autonomous animation engine control.
|
||||
For more product information please see the link below:
|
||||
https://www.ti.com/product/LP5812#tech-docs
|
||||
|
||||
properties:
|
||||
compatible:
|
||||
const: ti,lp5812
|
||||
|
||||
reg:
|
||||
maxItems: 1
|
||||
|
||||
ti,scan-mode:
|
||||
description: |
|
||||
Selects the LED scan mode of the LP5812. The device supports
|
||||
three modes:
|
||||
- Direct-drive mode (by default if 'ti,scan-mode' is omitted)
|
||||
drives up to 4 LEDs directly by internal current sinks (LED0-LED3).
|
||||
- TCM-drive mode ("tcm:<n>:<order...>") drives up to 12 LEDs
|
||||
(4 RGB) using 1-4 scan multiplexing. The <n> specifies the number
|
||||
of scans (1-4), and <order...> defines the scan order of the outputs.
|
||||
- Mix-drive mode ("mix:<n>:<direct>:<order...>") combines
|
||||
direct-drive and TCM-drive outputs. The <n> specifies the number
|
||||
of scans, <direct> selects the direct-drive outputs, and <order...>
|
||||
defines the scan order.
|
||||
$ref: /schemas/types.yaml#/definitions/string
|
||||
pattern: '^(tcm|mix):[1-4](:[0-3]){1,4}$'
|
||||
|
||||
vcc-supply:
|
||||
description: Regulator providing power to the 'VCC' pin.
|
||||
|
||||
"#address-cells":
|
||||
const: 1
|
||||
|
||||
"#size-cells":
|
||||
const: 0
|
||||
|
||||
patternProperties:
|
||||
"^led@[0-3]$":
|
||||
type: object
|
||||
$ref: common.yaml#
|
||||
unevaluatedProperties: false
|
||||
|
||||
properties:
|
||||
reg:
|
||||
minimum: 0
|
||||
maximum: 3
|
||||
|
||||
required:
|
||||
- reg
|
||||
|
||||
"^multi-led@[4-7]$":
|
||||
type: object
|
||||
$ref: leds-class-multicolor.yaml#
|
||||
unevaluatedProperties: false
|
||||
|
||||
properties:
|
||||
reg:
|
||||
minimum: 4
|
||||
maximum: 7
|
||||
|
||||
"#address-cells":
|
||||
const: 1
|
||||
|
||||
"#size-cells":
|
||||
const: 0
|
||||
|
||||
patternProperties:
|
||||
"^led@[4-9a-f]$":
|
||||
type: object
|
||||
$ref: common.yaml#
|
||||
unevaluatedProperties: false
|
||||
|
||||
properties:
|
||||
reg:
|
||||
minimum: 4
|
||||
maximum: 15
|
||||
|
||||
required:
|
||||
- reg
|
||||
|
||||
required:
|
||||
- compatible
|
||||
- reg
|
||||
|
||||
additionalProperties: false
|
||||
|
||||
examples:
|
||||
- |
|
||||
#include <dt-bindings/leds/common.h>
|
||||
|
||||
i2c {
|
||||
#address-cells = <1>;
|
||||
#size-cells = <0>;
|
||||
|
||||
led-controller@1b {
|
||||
#address-cells = <1>;
|
||||
#size-cells = <0>;
|
||||
compatible = "ti,lp5812";
|
||||
reg = <0x1b>;
|
||||
ti,scan-mode = "tcm:4:0:1:2:3";
|
||||
vcc-supply = <&vdd_3v3_reg>;
|
||||
|
||||
led@0 {
|
||||
reg = <0x0>;
|
||||
label = "LED0";
|
||||
led-max-microamp = <25500>;
|
||||
};
|
||||
|
||||
led@1 {
|
||||
reg = <0x1>;
|
||||
label = "LED1";
|
||||
led-max-microamp = <25500>;
|
||||
};
|
||||
|
||||
led@2 {
|
||||
reg = <0x2>;
|
||||
label = "LED2";
|
||||
led-max-microamp = <25500>;
|
||||
};
|
||||
|
||||
led@3 {
|
||||
reg = <0x3>;
|
||||
label = "LED3";
|
||||
led-max-microamp = <25500>;
|
||||
};
|
||||
|
||||
multi-led@4 {
|
||||
#address-cells = <1>;
|
||||
#size-cells = <0>;
|
||||
reg = <0x4>;
|
||||
color = <LED_COLOR_ID_RGB>;
|
||||
label = "LED_A";
|
||||
|
||||
led@4 {
|
||||
reg = <0x4>;
|
||||
color = <LED_COLOR_ID_GREEN>;
|
||||
led-max-microamp = <25500>;
|
||||
};
|
||||
|
||||
led@5 {
|
||||
reg = <0x5>;
|
||||
color = <LED_COLOR_ID_RED>;
|
||||
led-max-microamp = <25500>;
|
||||
};
|
||||
|
||||
led@6 {
|
||||
reg = <0x6>;
|
||||
color = <LED_COLOR_ID_BLUE>;
|
||||
led-max-microamp = <25500>;
|
||||
};
|
||||
};
|
||||
|
||||
multi-led@5 {
|
||||
#address-cells = <1>;
|
||||
#size-cells = <0>;
|
||||
reg = <0x5>;
|
||||
color = <LED_COLOR_ID_RGB>;
|
||||
label = "LED_B";
|
||||
|
||||
led@7 {
|
||||
reg = <0x7>;
|
||||
color = <LED_COLOR_ID_GREEN>;
|
||||
led-max-microamp = <25500>;
|
||||
};
|
||||
|
||||
led@8 {
|
||||
reg = <0x8>;
|
||||
color = <LED_COLOR_ID_RED>;
|
||||
led-max-microamp = <25500>;
|
||||
};
|
||||
|
||||
led@9 {
|
||||
reg = <0x9>;
|
||||
color = <LED_COLOR_ID_BLUE>;
|
||||
led-max-microamp = <25500>;
|
||||
};
|
||||
};
|
||||
|
||||
multi-led@6 {
|
||||
#address-cells = <1>;
|
||||
#size-cells = <0>;
|
||||
reg = <0x6>;
|
||||
color = <LED_COLOR_ID_RGB>;
|
||||
label = "LED_C";
|
||||
|
||||
led@a {
|
||||
reg = <0xa>;
|
||||
color = <LED_COLOR_ID_GREEN>;
|
||||
led-max-microamp = <25500>;
|
||||
};
|
||||
|
||||
led@b {
|
||||
reg = <0xb>;
|
||||
color = <LED_COLOR_ID_RED>;
|
||||
led-max-microamp = <25500>;
|
||||
};
|
||||
|
||||
led@c {
|
||||
reg = <0xc>;
|
||||
color = <LED_COLOR_ID_BLUE>;
|
||||
led-max-microamp = <25500>;
|
||||
};
|
||||
};
|
||||
|
||||
multi-led@7 {
|
||||
#address-cells = <1>;
|
||||
#size-cells = <0>;
|
||||
reg = <0x7>;
|
||||
color = <LED_COLOR_ID_RGB>;
|
||||
label = "LED_D";
|
||||
|
||||
led@d {
|
||||
reg = <0xd>;
|
||||
color = <LED_COLOR_ID_GREEN>;
|
||||
led-max-microamp = <25500>;
|
||||
};
|
||||
|
||||
led@e {
|
||||
reg = <0xe>;
|
||||
color = <LED_COLOR_ID_RED>;
|
||||
led-max-microamp = <25500>;
|
||||
};
|
||||
|
||||
led@f {
|
||||
reg = <0xf>;
|
||||
color = <LED_COLOR_ID_BLUE>;
|
||||
led-max-microamp = <25500>;
|
||||
};
|
||||
};
|
||||
};
|
||||
};
|
||||
|
||||
...
|
||||
|
|
@ -25836,6 +25836,12 @@ S: Supported
|
|||
F: Documentation/devicetree/bindings/iio/dac/ti,dac7612.yaml
|
||||
F: drivers/iio/dac/ti-dac7612.c
|
||||
|
||||
TEXAS INSTRUMENTS' LP5812 RGB LED DRIVER
|
||||
M: Nam Tran <trannamatk@gmail.com>
|
||||
L: linux-leds@vger.kernel.org
|
||||
S: Maintained
|
||||
F: Documentation/devicetree/bindings/leds/ti,lp5812.yaml
|
||||
|
||||
TEXAS INSTRUMENTS' LB8864 LED BACKLIGHT DRIVER
|
||||
M: Alexander Sverdlin <alexander.sverdlin@siemens.com>
|
||||
L: linux-leds@vger.kernel.org
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue