bindings/leds/richtek%2Crt8515.yaml

1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Richtek RT8515 1.5A dual channel LED driver
10   - Linus Walleij <linus.walleij@linaro.org>
13   The Richtek RT8515 is a dual channel (two mode) LED driver that
14   supports driving a white LED in flash or torch mode. The maximum
15   current for each mode is defined in hardware using two resistors
22   enf-gpios:
26   ent-gpios:
30   richtek,rfs-ohms:
34       resistors limits the maximum flash current. This must be set
35       for the property flash-max-microamp to work, the RFS resistor
37       flash LED.
39   richtek,rts-ohms:
43       resistors limits the maximum torch current. This must be set
44       for the property torch-max-microamp to work, the RTS resistor
46       torch LED.
48   led:
54       flash-max-timeout-us: true
56       flash-max-microamp:
58         description: The maximum current for flash mode
60           ground. The maximum hardware current setting is calculated
63           maximum current of 700mA. By setting this attribute in
65           current below the hardware limit. This requires the RFS
68       led-max-microamp:
70         description: The maximum current for torch mode
72           ground. The maximum hardware current setting is calculated
75           maximum current of 700mA. By setting this attribute in
77           current below the hardware limit. This requires the RTS
83   - compatible
84   - ent-gpios
85   - enf-gpios
86   - led
91   - |
92     #include <dt-bindings/gpio/gpio.h>
93     #include <dt-bindings/leds/common.h>
95     led-controller {
97         enf-gpios = <&gpio4 12 GPIO_ACTIVE_HIGH>;
98         ent-gpios = <&gpio4 13 GPIO_ACTIVE_HIGH>;
99         richtek,rfs-ohms = <16000>;
100         richtek,rts-ohms = <100000>;
102         led {
105             flash-max-timeout-us = <250000>;
106             flash-max-microamp = <150000>;
107             led-max-microamp = <25000>;