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On 12/5/25 16:07, Rob Herring wrote: > On Mon, Dec 01, 2025 at 12:53:20PM +0100, Maud Spierings wrote: >> The Maxim MAX25014 is a 4-channel automotive grade backlight driver IC >> with integrated boost controller. >> >> Signed-off-by: Maud Spierings >> >> --- >> >> In the current implementation the control registers for channel 1, >> control all channels. So only one led subnode with led-sources is >> supported right now. If at some point the driver functionality is >> expanded the bindings can be easily extended with it. > > What's the relationship between the LEDs and backlight? It's a backlight > plus LEDs or just 4 identical channels. it is just 4 identical channels, represented as leds, or in this case 1 led. I still feel a bit weird about this representation when there is also led-backlight. But it was requested to map it in this way. >> >> --- >> .../bindings/leds/backlight/maxim,max25014.yaml | 107 +++++++++++++++++++++ >> MAINTAINERS | 5 + >> 2 files changed, 112 insertions(+) >> >> diff --git a/Documentation/devicetree/bindings/leds/backlight/maxim,max25014.yaml b/Documentation/devicetree/bindings/leds/backlight/maxim,max25014.yaml >> new file mode 100644 >> index 000000000000..e83723224b07 >> --- /dev/null >> +++ b/Documentation/devicetree/bindings/leds/backlight/maxim,max25014.yaml >> @@ -0,0 +1,107 @@ >> +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) >> +%YAML 1.2 >> +--- >> +$id: http://devicetree.org/schemas/leds/backlight/maxim,max25014.yaml# >> +$schema: http://devicetree.org/meta-schemas/core.yaml# >> + >> +title: Maxim max25014 backlight controller >> + >> +maintainers: >> + - Maud Spierings >> + >> +properties: >> + compatible: >> + enum: >> + - maxim,max25014 >> + >> + reg: >> + maxItems: 1 >> + >> + "#address-cells": >> + const: 1 >> + >> + "#size-cells": >> + const: 0 >> + >> + enable-gpios: >> + maxItems: 1 >> + >> + interrupts: >> + maxItems: 1 >> + >> + power-supply: >> + description: Regulator which controls the boost converter input rail. >> + >> + pwms: >> + maxItems: 1 >> + >> + maxim,iset: >> + $ref: /schemas/types.yaml#/definitions/uint32 >> + maximum: 15 >> + default: 11 >> + description: >> + Value of the ISET field in the ISET register. This controls the current >> + scale of the outputs, a higher number means more current. > > We have properties for setting the current (in uA). That can't work > here? please refer to [1] and [2]. Link: https://lore.kernel.org/all/5c5cf363-db5c-4d0b-902f-97c6ef06c08f@gocontroll.com/ [1] Link: https://lore.kernel.org/all/20251009-overjoyed-unpopular-54f69e9bd82c@spud/ [2] kind regards, Maud