* [PATCH v3 1/1] doc: dt-binding: cdns,usb3: add wakeup-irq
@ 2020-11-04 8:05 Peter Chen
2020-11-05 22:37 ` Rob Herring
0 siblings, 1 reply; 2+ messages in thread
From: Peter Chen @ 2020-11-04 8:05 UTC (permalink / raw)
To: robh+dt
Cc: devicetree, linux-imx, linux-usb, pawell, rogerq, jun.li, Peter Chen
To support low power mode for controller, the driver needs wakeup-irq
to reflect the signal changing after controller is stopped, and waking
the controller up accordingly.
Signed-off-by: Peter Chen <peter.chen@nxp.com>
---
Changes for v3:
- Fix the dt_binding_check error
Changes for v2:
- Add "minItems: 3" to make wakeup irq optional
Documentation/devicetree/bindings/usb/cdns,usb3.yaml | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/Documentation/devicetree/bindings/usb/cdns,usb3.yaml b/Documentation/devicetree/bindings/usb/cdns,usb3.yaml
index ac20b98e9910..b32c877dc2a8 100644
--- a/Documentation/devicetree/bindings/usb/cdns,usb3.yaml
+++ b/Documentation/devicetree/bindings/usb/cdns,usb3.yaml
@@ -26,16 +26,21 @@ properties:
- const: dev
interrupts:
+ minItems: 3
items:
- description: OTG/DRD controller interrupt
- description: XHCI host controller interrupt
- description: Device controller interrupt
+ - description: interrupt used to wake up core, e.g when usbcmd.rs is
+ cleared by xhci core, this interrupt is optional
interrupt-names:
+ minItems: 3
items:
- const: host
- const: peripheral
- const: otg
+ - const: wakeup
dr_mode:
enum: [host, otg, peripheral]
--
2.17.1
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH v3 1/1] doc: dt-binding: cdns,usb3: add wakeup-irq
2020-11-04 8:05 [PATCH v3 1/1] doc: dt-binding: cdns,usb3: add wakeup-irq Peter Chen
@ 2020-11-05 22:37 ` Rob Herring
0 siblings, 0 replies; 2+ messages in thread
From: Rob Herring @ 2020-11-05 22:37 UTC (permalink / raw)
To: Peter Chen
Cc: devicetree, pawell, linux-usb, rogerq, jun.li, linux-imx, robh+dt
On Wed, 04 Nov 2020 16:05:24 +0800, Peter Chen wrote:
> To support low power mode for controller, the driver needs wakeup-irq
> to reflect the signal changing after controller is stopped, and waking
> the controller up accordingly.
>
> Signed-off-by: Peter Chen <peter.chen@nxp.com>
> ---
> Changes for v3:
> - Fix the dt_binding_check error
>
> Changes for v2:
> - Add "minItems: 3" to make wakeup irq optional
>
> Documentation/devicetree/bindings/usb/cdns,usb3.yaml | 5 +++++
> 1 file changed, 5 insertions(+)
>
Reviewed-by: Rob Herring <robh@kernel.org>
^ permalink raw reply [flat|nested] 2+ messages in thread
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