36 lines
1.1 KiB
YAML
36 lines
1.1 KiB
YAML
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/pwm/atmel,hlcdc-pwm.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Atmel's HLCDC's PWM controller
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maintainers:
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- Nicolas Ferre <nicolas.ferre@microchip.com>
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- Alexandre Belloni <alexandre.belloni@bootlin.com>
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- Claudiu Beznea <claudiu.beznea@tuxon.dev>
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description:
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The LCDC integrates a Pulse Width Modulation (PWM) Controller. This block
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generates the LCD contrast control signal (LCD_PWM) that controls the
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display's contrast by software. LCDC_PWM is an 8-bit PWM signal that can be
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converted to an analog voltage with a simple passive filter. LCD display
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panels have different backlight specifications in terms of minimum/maximum
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values for PWM frequency. If the LCDC PWM frequency range does not match the
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LCD display panel, it is possible to use the standalone PWM Controller to
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drive the backlight.
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properties:
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compatible:
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const: atmel,hlcdc-pwm
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"#pwm-cells":
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const: 3
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required:
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- compatible
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- "#pwm-cells"
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additionalProperties: false
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