From 6a22a5dbc69473c2c46d1a13fe6cbc7bdaacb2a6 Mon Sep 17 00:00:00 2001 From: Heiner Kallweit Date: Wed, 25 Jan 2023 23:24:24 +0100 Subject: [PATCH] dt-bindings: rtc: Convert Amlogic Meson vrtc controller binding Convert Amlogic Meson vrtc controller binding to yaml. Signed-off-by: Heiner Kallweit Reviewed-by: Rob Herring Link: https://lore.kernel.org/r/d820d54b-d082-589a-621f-2795d885696a@gmail.com Signed-off-by: Alexandre Belloni --- .../bindings/rtc/amlogic,meson-vrtc.yaml | 44 ++++++++++++++++++++++ .../devicetree/bindings/rtc/rtc-meson-vrtc.txt | 22 ----------- 2 files changed, 44 insertions(+), 22 deletions(-) create mode 100644 Documentation/devicetree/bindings/rtc/amlogic,meson-vrtc.yaml delete mode 100644 Documentation/devicetree/bindings/rtc/rtc-meson-vrtc.txt diff --git a/Documentation/devicetree/bindings/rtc/amlogic,meson-vrtc.yaml b/Documentation/devicetree/bindings/rtc/amlogic,meson-vrtc.yaml new file mode 100644 index 0000000..a89865f --- /dev/null +++ b/Documentation/devicetree/bindings/rtc/amlogic,meson-vrtc.yaml @@ -0,0 +1,44 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/rtc/amlogic,meson-vrtc.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Amlogic Virtual RTC (VRTC) + +maintainers: + - Neil Armstrong + +description: | + This is a Linux interface to an RTC managed by firmware, hence it's + virtual from a Linux perspective. The interface is 1 register where + an alarm time (in seconds) is to be written. + The alarm register is a simple scratch register shared between the + application processors (AP) and the secure co-processor (SCP.) When + the AP suspends, the SCP will use the value of this register to + program an always-on timer before going sleep. When the timer expires, + the SCP will wake up and will then wake the AP. + +allOf: + - $ref: rtc.yaml# + +properties: + compatible: + enum: + - amlogic,meson-vrtc + + reg: + maxItems: 1 + +required: + - compatible + - reg + +additionalProperties: false + +examples: + - | + rtc@a8 { + compatible = "amlogic,meson-vrtc"; + reg = <0x000a8 0x4>; + }; diff --git a/Documentation/devicetree/bindings/rtc/rtc-meson-vrtc.txt b/Documentation/devicetree/bindings/rtc/rtc-meson-vrtc.txt deleted file mode 100644 index c014f54..0000000 --- a/Documentation/devicetree/bindings/rtc/rtc-meson-vrtc.txt +++ /dev/null @@ -1,22 +0,0 @@ -* Amlogic Virtual RTC (VRTC) - -This is a Linux interface to an RTC managed by firmware, hence it's -virtual from a Linux perspective. The interface is 1 register where -an alarm time (in seconds) is to be written. - -Required properties: -- compatible: should be "amlogic,meson-vrtc" -- reg: physical address for the alarm register - -The alarm register is a simple scratch register shared between the -application processors (AP) and the secure co-processor (SCP.) When -the AP suspends, the SCP will use the value of this register to -program an always-on timer before going sleep. When the timer expires, -the SCP will wake up and will then wake the AP. - -Example: - - vrtc: rtc@0a8 { - compatible = "amlogic,meson-vrtc"; - reg = <0x0 0x000a8 0x0 0x4>; - }; -- 2.7.4