From: ChiaEn Wu <peterwu.pub@gmail.com>
To: lee.jones@linaro.org, daniel.thompson@linaro.org,
jingoohan1@gmail.com, pavel@ucw.cz, robh+dt@kernel.org,
krzysztof.kozlowski+dt@linaro.org, matthias.bgg@gmail.com,
sre@kernel.org, chunfeng.yun@mediatek.com,
gregkh@linuxfoundation.org, jic23@kernel.org, lars@metafoo.de,
lgirdwood@gmail.com, broonie@kernel.org, linux@roeck-us.net,
heikki.krogerus@linux.intel.com, deller@gmx.de,
andy.shevchenko@gmail.com
Cc: chiaen_wu@richtek.com, alice_chen@richtek.com,
cy_huang@richtek.com, dri-devel@lists.freedesktop.org,
linux-leds@vger.kernel.org, devicetree@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
linux-mediatek@lists.infradead.org, linux-kernel@vger.kernel.org,
linux-pm@vger.kernel.org, linux-usb@vger.kernel.org,
linux-iio@vger.kernel.org, linux-fbdev@vger.kernel.org,
szunichen@gmail.com, Rob Herring <robh@kernel.org>
Subject: [PATCH v6 05/13] dt-bindings: backlight: Add MediaTek MT6370 backlight
Date: Fri, 22 Jul 2022 18:23:59 +0800 [thread overview]
Message-ID: <20220722102407.2205-6-peterwu.pub@gmail.com> (raw)
In-Reply-To: <20220722102407.2205-1-peterwu.pub@gmail.com>
From: ChiYuan Huang <cy_huang@richtek.com>
Add MT6370 backlight binding documentation.
Signed-off-by: ChiYuan Huang <cy_huang@richtek.com>
Reviewed-by: Rob Herring <robh@kernel.org>
---
.../leds/backlight/mediatek,mt6370-backlight.yaml | 92 ++++++++++++++++++++++
1 file changed, 92 insertions(+)
create mode 100644 Documentation/devicetree/bindings/leds/backlight/mediatek,mt6370-backlight.yaml
diff --git a/Documentation/devicetree/bindings/leds/backlight/mediatek,mt6370-backlight.yaml b/Documentation/devicetree/bindings/leds/backlight/mediatek,mt6370-backlight.yaml
new file mode 100644
index 0000000..d674212
--- /dev/null
+++ b/Documentation/devicetree/bindings/leds/backlight/mediatek,mt6370-backlight.yaml
@@ -0,0 +1,92 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/leds/backlight/mediatek,mt6370-backlight.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: MediaTek MT6370 Backlight
+
+maintainers:
+ - ChiaEn Wu <chiaen_wu@richtek.com>
+
+description: |
+ This module is part of the MT6370 MFD device.
+ The MT6370 Backlight WLED driver supports up to a 29V output voltage for
+ 4 channels of 8 series WLEDs. Each channel supports up to 30mA of current
+ capability with 2048 current steps (11 bits) in exponential or linear
+ mapping curves.
+
+allOf:
+ - $ref: common.yaml#
+
+properties:
+ compatible:
+ const: mediatek,mt6370-backlight
+
+ default-brightness:
+ minimum: 0
+ maximum: 2048
+
+ max-brightness:
+ minimum: 0
+ maximum: 2048
+
+ enable-gpios:
+ description: External backlight 'enable' pin
+ maxItems: 1
+
+ mediatek,bled-pwm-enable:
+ description: |
+ Enable external PWM input for backlight dimming
+ type: boolean
+
+ mediatek,bled-pwm-hys-enable:
+ description: |
+ Enable the backlight input-hysteresis for PWM mode
+ type: boolean
+
+ mediatek,bled-pwm-hys-input-th-steps:
+ $ref: /schemas/types.yaml#/definitions/uint8
+ enum: [1, 4, 16, 64]
+ description: |
+ The selection of the upper and lower bounds threshold of backlight
+ PWM resolution. If we choose selection 64, the variation of PWM
+ resolution needs more than 64 steps.
+
+ mediatek,bled-ovp-shutdown:
+ description: |
+ Enable the backlight shutdown when OVP level triggered
+ type: boolean
+
+ mediatek,bled-ovp-microvolt:
+ enum: [17000000, 21000000, 25000000, 29000000]
+ description: |
+ Backlight OVP level selection.
+
+ mediatek,bled-ocp-shutdown:
+ description: |
+ Enable the backlight shutdown when OCP level triggerred.
+ type: boolean
+
+ mediatek,bled-ocp-microamp:
+ enum: [900000, 1200000, 1500000, 1800000]
+ description: |
+ Backlight OC level selection.
+
+ mediatek,bled-channel-use:
+ $ref: /schemas/types.yaml#/definitions/uint8
+ description: |
+ Backlight LED channel to be used.
+ Each bit mapping to:
+ - 0: CH4
+ - 1: CH3
+ - 2: CH2
+ - 3: CH1
+ minimum: 1
+ maximum: 15
+
+required:
+ - compatible
+ - mediatek,bled-channel-use
+
+additionalProperties: false
--
2.7.4
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next prev parent reply other threads:[~2022-07-22 10:27 UTC|newest]
Thread overview: 52+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-07-22 10:23 [PATCH v6 00/13] Add MediaTek MT6370 PMIC support ChiaEn Wu
2022-07-22 10:23 ` [PATCH v6 01/13] dt-bindings: usb: Add MediaTek MT6370 TCPC ChiaEn Wu
2022-07-22 10:23 ` [PATCH v6 02/13] dt-bindings: power: supply: Add MediaTek MT6370 Charger ChiaEn Wu
2022-07-22 10:23 ` [PATCH v6 03/13] dt-bindings: leds: mt6370: Add MediaTek MT6370 current sink type LED indicator ChiaEn Wu
2022-07-22 10:23 ` [PATCH v6 04/13] dt-bindings: leds: Add MediaTek MT6370 flashlight ChiaEn Wu
2022-07-30 21:30 ` Pavel Machek
2022-07-22 10:23 ` ChiaEn Wu [this message]
2022-08-01 6:47 ` [PATCH v6 05/13] dt-bindings: backlight: Add MediaTek MT6370 backlight ChiaEn Wu
2022-07-22 10:24 ` [PATCH v6 06/13] dt-bindings: mfd: Add MediaTek MT6370 ChiaEn Wu
2022-07-22 10:24 ` [PATCH v6 07/13] mfd: mt6370: Add MediaTek MT6370 support ChiaEn Wu
2022-07-25 7:59 ` Andy Shevchenko
2022-07-25 8:29 ` ChiaEn Wu
2022-07-25 8:43 ` Andy Shevchenko
2022-07-25 9:06 ` ChiaEn Wu
2022-07-25 9:09 ` Andy Shevchenko
2022-07-22 10:24 ` [PATCH v6 08/13] usb: typec: tcpci_mt6370: Add MediaTek MT6370 tcpci driver ChiaEn Wu
2022-07-22 14:19 ` Guenter Roeck
2022-07-25 7:06 ` Chunfeng Yun
2022-07-25 7:17 ` ChiaEn Wu
2022-07-25 8:03 ` Andy Shevchenko
2022-07-22 10:24 ` [PATCH v6 09/13] iio: adc: mt6370: Add MediaTek MT6370 support ChiaEn Wu
2022-07-25 8:10 ` Andy Shevchenko
2022-07-22 10:24 ` [PATCH v6 10/13] power: supply: mt6370: Add MediaTek MT6370 charger driver ChiaEn Wu
2022-07-25 8:25 ` Andy Shevchenko
2022-07-22 10:24 ` [PATCH v6 11/13] leds: rgb: mt6370: Add MediaTek MT6370 current sink type LED Indicator support ChiaEn Wu
2022-07-22 10:52 ` AngeloGioacchino Del Regno
2022-07-25 8:40 ` Andy Shevchenko
2022-07-26 11:45 ` ChiaEn Wu
2022-07-26 12:17 ` Andy Shevchenko
2022-07-27 7:36 ` ChiaEn Wu
2022-07-27 10:03 ` Andy Shevchenko
2022-07-30 21:39 ` Pavel Machek
2022-08-01 7:55 ` szuni chen
2022-07-22 10:24 ` [PATCH v6 12/13] leds: flash: mt6370: Add MediaTek MT6370 flashlight support ChiaEn Wu
2022-07-22 10:48 ` AngeloGioacchino Del Regno
2022-07-25 8:51 ` Andy Shevchenko
2022-07-29 6:17 ` szuni chen
2022-07-29 10:34 ` Andy Shevchenko
2022-07-25 8:55 ` Andy Shevchenko
2022-07-26 4:15 ` szuni chen
2022-07-26 6:10 ` Andy Shevchenko
2022-07-30 21:42 ` Pavel Machek
2022-08-04 9:53 ` Alice Chen
2022-07-22 10:24 ` [PATCH v6 13/13] video: backlight: mt6370: Add MediaTek MT6370 support ChiaEn Wu
2022-07-25 9:07 ` Andy Shevchenko
2022-07-25 10:31 ` Daniel Thompson
2022-07-26 2:20 ` ChiaEn Wu
2022-07-26 9:30 ` Daniel Thompson
2022-07-26 11:28 ` ChiaEn Wu
2022-07-26 11:59 ` Daniel Thompson
2022-07-27 6:24 ` ChiaEn Wu
2022-07-28 11:31 ` Daniel Thompson
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