* [PATCH V3 1/2] dt-bindings: watchdog: convert Broadcom's WDT to the json-schema
@ 2021-11-12 22:14 Rafał Miłecki
2021-11-12 22:14 ` [PATCH V3 2/2] dt-bindings: mfd: add Broadcom's Timer-Watchdog block Rafał Miłecki
0 siblings, 1 reply; 2+ messages in thread
From: Rafał Miłecki @ 2021-11-12 22:14 UTC (permalink / raw)
To: Lee Jones, Wim Van Sebroeck, Guenter Roeck, Rob Herring
Cc: Florian Fainelli, Justin Chen, bcm-kernel-feedback-list,
linux-watchdog, linux-arm-kernel, devicetree, linux-mips,
Rafał Miłecki
From: Rafał Miłecki <rafal@milecki.pl>
This helps validating DTS files.
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
---
V2: Use valid $id
---
.../bindings/watchdog/brcm,bcm7038-wdt.txt | 19 ---------
.../bindings/watchdog/brcm,bcm7038-wdt.yaml | 40 +++++++++++++++++++
2 files changed, 40 insertions(+), 19 deletions(-)
delete mode 100644 Documentation/devicetree/bindings/watchdog/brcm,bcm7038-wdt.txt
create mode 100644 Documentation/devicetree/bindings/watchdog/brcm,bcm7038-wdt.yaml
diff --git a/Documentation/devicetree/bindings/watchdog/brcm,bcm7038-wdt.txt b/Documentation/devicetree/bindings/watchdog/brcm,bcm7038-wdt.txt
deleted file mode 100644
index 84122270be8f..000000000000
--- a/Documentation/devicetree/bindings/watchdog/brcm,bcm7038-wdt.txt
+++ /dev/null
@@ -1,19 +0,0 @@
-BCM7038 Watchdog timer
-
-Required properties:
-
-- compatible : should be "brcm,bcm7038-wdt"
-- reg : Specifies base physical address and size of the registers.
-
-Optional properties:
-
-- clocks: The clock running the watchdog. If no clock is found the
- driver will default to 27000000 Hz.
-
-Example:
-
-watchdog@f040a7e8 {
- compatible = "brcm,bcm7038-wdt";
- clocks = <&upg_fixed>;
- reg = <0xf040a7e8 0x16>;
-};
diff --git a/Documentation/devicetree/bindings/watchdog/brcm,bcm7038-wdt.yaml b/Documentation/devicetree/bindings/watchdog/brcm,bcm7038-wdt.yaml
new file mode 100644
index 000000000000..53a3245a6193
--- /dev/null
+++ b/Documentation/devicetree/bindings/watchdog/brcm,bcm7038-wdt.yaml
@@ -0,0 +1,40 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/watchdog/brcm,bcm7038-wdt.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: BCM7038 watchdog timer
+
+allOf:
+ - $ref: "watchdog.yaml#"
+
+maintainers:
+ - Florian Fainelli <f.fainelli@gmail.com>
+ - Justin Chen <justinpopo6@gmail.com>
+ - Rafał Miłecki <rafal@milecki.pl>
+
+properties:
+ compatible:
+ const: brcm,bcm7038-wdt
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ description: >
+ The clock running the watchdog. If no clock is found the driver will
+ default to 27000000 Hz.
+
+unevaluatedProperties: false
+
+required:
+ - reg
+
+examples:
+ - |
+ watchdog@f040a7e8 {
+ compatible = "brcm,bcm7038-wdt";
+ reg = <0xf040a7e8 0x16>;
+ clocks = <&upg_fixed>;
+ };
--
2.31.1
^ permalink raw reply related [flat|nested] 2+ messages in thread
* [PATCH V3 2/2] dt-bindings: mfd: add Broadcom's Timer-Watchdog block
2021-11-12 22:14 [PATCH V3 1/2] dt-bindings: watchdog: convert Broadcom's WDT to the json-schema Rafał Miłecki
@ 2021-11-12 22:14 ` Rafał Miłecki
0 siblings, 0 replies; 2+ messages in thread
From: Rafał Miłecki @ 2021-11-12 22:14 UTC (permalink / raw)
To: Lee Jones, Wim Van Sebroeck, Guenter Roeck, Rob Herring
Cc: Florian Fainelli, Justin Chen, bcm-kernel-feedback-list,
linux-watchdog, linux-arm-kernel, devicetree, linux-mips,
Rafał Miłecki
From: Rafał Miłecki <rafal@milecki.pl>
It's a block implementing few time related functions depending on a
(SoC specific) variant. At this point there is ready binding for a
watchdog only. Work on remaining subblocks (e.g. "reg" based reboot) is
in progress.
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
---
V2: Update $id, description, compatible, example & commit message
V3: Drop "brcm,twd" from compatible list per Rob's review
---
.../devicetree/bindings/mfd/brcm,twd.yaml | 61 +++++++++++++++++++
1 file changed, 61 insertions(+)
create mode 100644 Documentation/devicetree/bindings/mfd/brcm,twd.yaml
diff --git a/Documentation/devicetree/bindings/mfd/brcm,twd.yaml b/Documentation/devicetree/bindings/mfd/brcm,twd.yaml
new file mode 100644
index 000000000000..634526f790b8
--- /dev/null
+++ b/Documentation/devicetree/bindings/mfd/brcm,twd.yaml
@@ -0,0 +1,61 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/mfd/brcm,twd.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Broadcom's Timer-Watchdog (aka TWD)
+
+maintainers:
+ - Rafał Miłecki <rafal@milecki.pl>
+
+description: |
+ Broadcom has a Timer-Watchdog block used in multiple SoCs (e.g., BCM4908,
+ BCM63xx, BCM7038). There are few variants available (they differ slightly in
+ registers layout). This block consists of: timers, watchdog and optionally a
+ software reset handler.
+
+properties:
+ compatible:
+ items:
+ - enum:
+ - brcm,bcm4908-twd
+ - brcm,bcm7038-twd
+ - const: simple-mfd
+ - const: syscon
+
+ reg:
+ maxItems: 1
+
+ ranges: true
+
+ "#address-cells":
+ const: 1
+
+ "#size-cells":
+ const: 1
+
+patternProperties:
+ '^watchdog@[a-f0-9]+$':
+ $ref: /schemas/watchdog/brcm,bcm7038-wdt.yaml
+
+additionalProperties: false
+
+required:
+ - reg
+
+examples:
+ - |
+ timer-mfd@ff800400 {
+ compatible = "brcm,bcm4908-twd", "simple-mfd", "syscon";
+ reg = <0xff800400 0x4c>;
+ ranges = <0x00000000 0xff800400 0x4c>;
+
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ watchdog@28 {
+ compatible = "brcm,bcm7038-wdt";
+ reg = <0x28 0x8>;
+ };
+ };
--
2.31.1
^ permalink raw reply related [flat|nested] 2+ messages in thread
end of thread, other threads:[~2021-11-12 22:14 UTC | newest]
Thread overview: 2+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2021-11-12 22:14 [PATCH V3 1/2] dt-bindings: watchdog: convert Broadcom's WDT to the json-schema Rafał Miłecki
2021-11-12 22:14 ` [PATCH V3 2/2] dt-bindings: mfd: add Broadcom's Timer-Watchdog block Rafał Miłecki
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).