On Tue, 2024-04-02 at 16:30 -0700, Zev Weiss wrote: > On Tue, Apr 02, 2024 at 05:01:18AM PDT, Andrew Jeffery wrote: > > Squash warnings such as: > > > > ``` > > arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-galaxy100.dtb: /ahb/apb@1e600000/watchdog@1e785000: failed to match any schema with compatible: ['aspeed,ast2400-wdt'] > > ``` > > > > Signed-off-by: Andrew Jeffery <andrew@xxxxxxxxxxxxxxxxxxxx> > > --- > > .../bindings/watchdog/aspeed,ast2400-wdt.yaml | 130 ++++++++++++++++++ > > .../bindings/watchdog/aspeed-wdt.txt | 73 ---------- > > 2 files changed, 130 insertions(+), 73 deletions(-) > > create mode 100644 Documentation/devicetree/bindings/watchdog/aspeed,ast2400-wdt.yaml > > delete mode 100644 Documentation/devicetree/bindings/watchdog/aspeed-wdt.txt > > > > diff --git a/Documentation/devicetree/bindings/watchdog/aspeed,ast2400-wdt.yaml b/Documentation/devicetree/bindings/watchdog/aspeed,ast2400-wdt.yaml > > new file mode 100644 > > index 000000000000..10fcb50c4051 > > --- /dev/null > > +++ b/Documentation/devicetree/bindings/watchdog/aspeed,ast2400-wdt.yaml > > @@ -0,0 +1,130 @@ > > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) > > +%YAML 1.2 > > +--- > > +$id: http://devicetree.org/schemas/watchdog/aspeed,ast2400-wdt.yaml# > > +$schema: http://devicetree.org/meta-schemas/core.yaml# > > + > > +title: Aspeed watchdog timer controllers > > + > > +maintainers: > > + - Andrew Jeffery <andrew@xxxxxxxxxxxxxxxxxxxx> > > + > > +properties: > > + compatible: > > + enum: > > + - aspeed,ast2400-wdt > > + - aspeed,ast2500-wdt > > + - aspeed,ast2600-wdt > > + > > + reg: > > + maxItems: 1 > > + > > + clocks: true > > + > > + aspeed,reset-type: > > + enum: > > + - cpu > > + - soc > > + - system > > + - none > > + description: | > > + Reset behaviour - The watchdog can be programmed to generate one of three > > + different types of reset when a timeout occcurs. > > + > > + Specifying 'cpu' will only reset the processor on a timeout event. > > + > > + Specifying 'soc' will reset a configurable subset of the SoC's controllers > > Might be worth clarifying that it's configurable only on ast2500 & > ast2600, and which property (aspeed,reset-mask) configures it? Good point, will do. > > > + on a timeout event. Controllers critical to the SoC's operation may remain untouched. > > + > > + Specifying 'system' will reset all controllers on a timeout event, as if EXTRST had been asserted. > > + Specifying "none" will cause the timeout event to have no reset effect. > > Tiny nit: quoting (single vs. double) is slightly inconsistent between > values here. Ack. > > > + Another watchdog engine on the chip must be used for chip reset operations. > > + > > + The default reset type is "system" > > + > > + aspeed,alt-boot: > > + $ref: /schemas/types.yaml#/definitions/flag > > + description: | > > + Direct the watchdog to configure the SoC to boot from the alternative boot > > + region if a timeout occurs. > > + > > + aspeed,external-signal: > > + $ref: /schemas/types.yaml#/definitions/flag > > + description: | > > + Assert the timeout event on an external signal pin associated with the > > + watchdog controller instance. The pin must be muxed appropriately. > > + > > + aspeed,ext-pulse-duration: > > + $ref: /schemas/types.yaml#/definitions/uint32 > > + description: | > > + The duration, in microseconds, of the pulse emitted on the external signal pin > > + > > + aspeed,ext-push-pull: > > + $ref: /schemas/types.yaml#/definitions/flag > > + description: | > > + If aspeed,external-signal is specified in the node, set the external > > + signal pin's drive type to push-pull. If aspeed,ext-push-pull is not > > + specified then the pin is configured as open-drain. > > + > > + aspeed,ext-active-high: > > + $ref: /schemas/types.yaml#/definitions/flag > > + description: | > > + If both aspeed,external-signal and aspeed,ext-push-pull are specified in > > + the node, set the pulse polarity to active-high. If aspeed,ext-active-high > > + is not specified then the pin is configured as active-low. > > + > > + aspeed,reset-mask: > > + $ref: /schemas/types.yaml#/definitions/uint32-array > > + minItems: 1 > > + maxItems: 2 > > + description: | > > + A bitmaks indicating which peripherals will be reset if the watchdog > > Typo: "bitmask" Good catch. Thanks, Andrew
