[PATCH 2/3] dt-bindings: backlight: lm3630a: add entries to control boost frequency

From: Maximilian Weigand
Date: Wed Jun 14 2023 - 15:09:36 EST


From: Maximilian Weigand <mweigand@xxxxxxxxxxxx>

Add 'ti,boost_use_1mhz' to switch between 500 kHz and 1 MHz boost
converter switching frequency, and add 'ti,boost_frequency_shift' to
activate a frequency shift to 560 kHz or 1.12 MHz, respectively.

Signed-off-by: Maximilian Weigand <mweigand@xxxxxxxxxxxx>
---
.../bindings/leds/backlight/lm3630a-backlight.yaml | 12 ++++++++++++
1 file changed, 12 insertions(+)

diff --git a/Documentation/devicetree/bindings/leds/backlight/lm3630a-backlight.yaml b/Documentation/devicetree/bindings/leds/backlight/lm3630a-backlight.yaml
index 3c9b4054ed9a..ef7ea0ad2d25 100644
--- a/Documentation/devicetree/bindings/leds/backlight/lm3630a-backlight.yaml
+++ b/Documentation/devicetree/bindings/leds/backlight/lm3630a-backlight.yaml
@@ -33,6 +33,18 @@ properties:
description: GPIO to use to enable/disable the backlight (HWEN pin).
maxItems: 1

+ ti,boost_use_1mhz:
+ description: |
+ If present, change the boost converter switching frequency from the
+ default 500 kHz to 1 MHz. Refer to data sheet for hardware requirements.
+ type: boolean
+
+ ti,boost_frequency_shift:
+ description: |
+ If present, change boost converter switching frequency from 500 kHz to
+ 560 kHz or from 1 Mhz to 1.12 Mhz, respectively.
+ type: boolean
+
required:
- compatible
- reg

--
2.39.2