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authorLinus Torvalds <torvalds@linux-foundation.org>2021-07-07 12:57:46 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2021-07-07 12:57:46 -0700
commit9d69294be2a363a0128f4dc0316a7a4bb29ea91f (patch)
treebb84dc741a7459a19bce2e52de1c412c90681d67 /Documentation
parent0cc2ea8cebe909203f994e9113dc1f1b3907d03c (diff)
parentcf813c67d9619fd474c785698cbed543b94209dd (diff)
Merge tag 'linux-watchdog-5.14-rc1' of git://www.linux-watchdog.org/linux-watchdog
Pull watchdog updates from Wim Van Sebroeck: - Add Mstar MSC313e WDT driver - Add support for sama7g5-wdt - Add compatible for SC7280 SoC - Add compatible for Mediatek MT8195 - sbsa: Support architecture version 1 - Removal of the MV64x60 watchdog driver - Extra PCI IDs for hpwdt - Add hrtimer-based pretimeout feature - Add {min,max}_timeout sysfs nodes - keembay timeout and pre-timeout handling - Several fixes, cleanups and improvements * tag 'linux-watchdog-5.14-rc1' of git://www.linux-watchdog.org/linux-watchdog: (56 commits) watchdog: iTCO_wdt: use dev_err() instead of pr_err() watchdog: Add Mstar MSC313e WDT driver dt-bindings: watchdog: Add Mstar MSC313e WDT devicetree bindings documentation watchdog: iTCO_wdt: Account for rebooting on second timeout dt-bindings: watchdog: Convert arm,sbsa-gwdt to DT schema dt-bindings: watchdog: sama5d4-wdt: add compatible for sama7g5-wdt watchdog: sama5d4_wdt: add support for sama7g5-wdt dt-bindings: watchdog: sama5d4-wdt: convert to yaml watchdog: ziirave_wdt: Remove VERSION_FMT defines and add sysfs newlines dt-bindings: watchdog: Add compatible for Mediatek MT8195 dt-bindings: watchdog: dw-wdt: add description for rk3568 watchdog: imx_sc_wdt: fix pretimeout watchdog: diag288_wdt: Remove redundant assignment watchdog: Add hrtimer-based pretimeout feature dt-bindings: watchdog: Add compatible for SC7280 SoC watchdog: qcom: Move suspend/resume to suspend_late/resume_early watchdog: Fix a typo in the file orion_wdt.c watchdog: jz4740: Fix return value check in jz4740_wdt_probe() watchdog: Remove MV64x60 watchdog driver doc: mtk-wdt: support pre-timeout when the bark irq is available ...
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/devicetree/bindings/watchdog/atmel,sama5d4-wdt.yaml74
-rw-r--r--Documentation/devicetree/bindings/watchdog/atmel-sama5d4-wdt.txt34
-rw-r--r--Documentation/devicetree/bindings/watchdog/mstar,msc313e-wdt.yaml40
-rw-r--r--Documentation/devicetree/bindings/watchdog/mtk-wdt.txt6
-rw-r--r--Documentation/devicetree/bindings/watchdog/qcom-wdt.yaml1
-rw-r--r--Documentation/devicetree/bindings/watchdog/snps,dw-wdt.yaml1
6 files changed, 122 insertions, 34 deletions
diff --git a/Documentation/devicetree/bindings/watchdog/atmel,sama5d4-wdt.yaml b/Documentation/devicetree/bindings/watchdog/atmel,sama5d4-wdt.yaml
new file mode 100644
index 000000000000..9856cd76c28d
--- /dev/null
+++ b/Documentation/devicetree/bindings/watchdog/atmel,sama5d4-wdt.yaml
@@ -0,0 +1,74 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/watchdog/atmel,sama5d4-wdt.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Atmel SAMA5D4 Watchdog Timer (WDT) Controller
+
+maintainers:
+ - Eugen Hristev <eugen.hristev@microchip.com>
+
+allOf:
+ - $ref: "watchdog.yaml#"
+
+properties:
+ compatible:
+ enum:
+ - atmel,sama5d4-wdt
+ - microchip,sam9x60-wdt
+ - microchip,sama7g5-wdt
+
+ reg:
+ maxItems: 1
+
+ atmel,watchdog-type:
+ $ref: /schemas/types.yaml#/definitions/string
+ description: should be hardware or software.
+ oneOf:
+ - description:
+ Enable watchdog fault reset. A watchdog fault triggers
+ watchdog reset.
+ const: hardware
+ - description:
+ Enable watchdog fault interrupt. A watchdog fault asserts
+ watchdog interrupt.
+ const: software
+ default: hardware
+
+ atmel,idle-halt:
+ $ref: /schemas/types.yaml#/definitions/flag
+ description: |
+ present if you want to stop the watchdog when the CPU is in idle state.
+ CAUTION: This property should be used with care, it actually makes the
+ watchdog not counting when the CPU is in idle state, therefore the
+ watchdog reset time depends on mean CPU usage and will not reset at all
+ if the CPU stop working while it is in idle state, which is probably
+ not what you want.
+
+ atmel,dbg-halt:
+ $ref: /schemas/types.yaml#/definitions/flag
+ description: |
+ present if you want to stop the watchdog when the CPU is in debug state.
+
+required:
+ - compatible
+ - reg
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/irq.h>
+
+ watchdog@fc068640 {
+ compatible = "atmel,sama5d4-wdt";
+ reg = <0xfc068640 0x10>;
+ interrupts = <4 IRQ_TYPE_LEVEL_HIGH 5>;
+ timeout-sec = <10>;
+ atmel,watchdog-type = "hardware";
+ atmel,dbg-halt;
+ atmel,idle-halt;
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/watchdog/atmel-sama5d4-wdt.txt b/Documentation/devicetree/bindings/watchdog/atmel-sama5d4-wdt.txt
deleted file mode 100644
index 44727fcc2729..000000000000
--- a/Documentation/devicetree/bindings/watchdog/atmel-sama5d4-wdt.txt
+++ /dev/null
@@ -1,34 +0,0 @@
-* Atmel SAMA5D4 Watchdog Timer (WDT) Controller
-
-Required properties:
-- compatible: "atmel,sama5d4-wdt" or "microchip,sam9x60-wdt"
-- reg: base physical address and length of memory mapped region.
-
-Optional properties:
-- timeout-sec: watchdog timeout value (in seconds).
-- interrupts: interrupt number to the CPU.
-- atmel,watchdog-type: should be "hardware" or "software".
- "hardware": enable watchdog fault reset. A watchdog fault triggers
- watchdog reset.
- "software": enable watchdog fault interrupt. A watchdog fault asserts
- watchdog interrupt.
-- atmel,idle-halt: present if you want to stop the watchdog when the CPU is
- in idle state.
- CAUTION: This property should be used with care, it actually makes the
- watchdog not counting when the CPU is in idle state, therefore the
- watchdog reset time depends on mean CPU usage and will not reset at all
- if the CPU stop working while it is in idle state, which is probably
- not what you want.
-- atmel,dbg-halt: present if you want to stop the watchdog when the CPU is
- in debug state.
-
-Example:
- watchdog@fc068640 {
- compatible = "atmel,sama5d4-wdt";
- reg = <0xfc068640 0x10>;
- interrupts = <4 IRQ_TYPE_LEVEL_HIGH 5>;
- timeout-sec = <10>;
- atmel,watchdog-type = "hardware";
- atmel,dbg-halt;
- atmel,idle-halt;
- };
diff --git a/Documentation/devicetree/bindings/watchdog/mstar,msc313e-wdt.yaml b/Documentation/devicetree/bindings/watchdog/mstar,msc313e-wdt.yaml
new file mode 100644
index 000000000000..e3e8b86dbf63
--- /dev/null
+++ b/Documentation/devicetree/bindings/watchdog/mstar,msc313e-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/mstar,msc313e-wdt.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: MStar Watchdog Device Tree Bindings
+
+maintainers:
+ - Daniel Palmer <daniel@0x0f.com>
+ - Romain Perier <romain.perier@gmail.com>
+
+allOf:
+ - $ref: watchdog.yaml#
+
+properties:
+ compatible:
+ enum:
+ - mstar,msc313e-wdt
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ maxItems: 1
+
+required:
+ - compatible
+ - clocks
+ - reg
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ watchdog@6000 {
+ compatible = "mstar,msc313e-wdt";
+ reg = <0x6000 0x1f>;
+ clocks = <&xtal_div2>;
+ };
diff --git a/Documentation/devicetree/bindings/watchdog/mtk-wdt.txt b/Documentation/devicetree/bindings/watchdog/mtk-wdt.txt
index e36ba60de829..416d716403f6 100644
--- a/Documentation/devicetree/bindings/watchdog/mtk-wdt.txt
+++ b/Documentation/devicetree/bindings/watchdog/mtk-wdt.txt
@@ -1,5 +1,8 @@
Mediatek SoCs Watchdog timer
+The watchdog supports a pre-timeout interrupt that fires timeout-sec/2
+before the expiry.
+
Required properties:
- compatible should contain:
@@ -13,10 +16,12 @@ Required properties:
"mediatek,mt8183-wdt": for MT8183
"mediatek,mt8516-wdt", "mediatek,mt6589-wdt": for MT8516
"mediatek,mt8192-wdt": for MT8192
+ "mediatek,mt8195-wdt", "mediatek,mt6589-wdt": for MT8195
- reg : Specifies base physical address and size of the registers.
Optional properties:
+- interrupts: Watchdog pre-timeout (bark) interrupt.
- timeout-sec: contains the watchdog timeout in seconds.
- #reset-cells: Should be 1.
@@ -26,6 +31,7 @@ watchdog: watchdog@10007000 {
compatible = "mediatek,mt8183-wdt",
"mediatek,mt6589-wdt";
reg = <0 0x10007000 0 0x100>;
+ interrupts = <GIC_SPI 139 IRQ_TYPE_NONE>;
timeout-sec = <10>;
#reset-cells = <1>;
};
diff --git a/Documentation/devicetree/bindings/watchdog/qcom-wdt.yaml b/Documentation/devicetree/bindings/watchdog/qcom-wdt.yaml
index b8e4118945a0..ba60bdf1fecc 100644
--- a/Documentation/devicetree/bindings/watchdog/qcom-wdt.yaml
+++ b/Documentation/devicetree/bindings/watchdog/qcom-wdt.yaml
@@ -17,6 +17,7 @@ properties:
enum:
- qcom,apss-wdt-qcs404
- qcom,apss-wdt-sc7180
+ - qcom,apss-wdt-sc7280
- qcom,apss-wdt-sdm845
- qcom,apss-wdt-sdx55
- qcom,apss-wdt-sm8150
diff --git a/Documentation/devicetree/bindings/watchdog/snps,dw-wdt.yaml b/Documentation/devicetree/bindings/watchdog/snps,dw-wdt.yaml
index b58596b1831d..6461eb4f4a27 100644
--- a/Documentation/devicetree/bindings/watchdog/snps,dw-wdt.yaml
+++ b/Documentation/devicetree/bindings/watchdog/snps,dw-wdt.yaml
@@ -27,6 +27,7 @@ properties:
- rockchip,rk3328-wdt
- rockchip,rk3368-wdt
- rockchip,rk3399-wdt
+ - rockchip,rk3568-wdt
- rockchip,rv1108-wdt
- const: snps,dw-wdt