Hi Heiko,
On 2017/8/2 19:25, Heiko Stübner wrote:
Hi Frank,
Am Mittwoch, 2. August 2017, 15:53:09 CEST schrieb Frank Wang:
Add rockchip,otg_mux_irq_quirk property to support the otg-id/
otg-bvalid/linestate irqs that are multiplexed to one irq in
otg-port on some special Rockchip SoCs (e.g RV1108).
Signed-off-by: Frank Wang <frank.wang@xxxxxxxxxxxxxx>
---
Documentation/devicetree/bindings/phy/phy-rockchip-inno-usb2.txt | 5 +++++
1 file changed, 5 insertions(+)
diff --git
a/Documentation/devicetree/bindings/phy/phy-rockchip-inno-usb2.txt
b/Documentation/devicetree/bindings/phy/phy-rockchip-inno-usb2.txt index
ddf868a..d49572b 100644
--- a/Documentation/devicetree/bindings/phy/phy-rockchip-inno-usb2.txt
+++ b/Documentation/devicetree/bindings/phy/phy-rockchip-inno-usb2.txt
@@ -22,6 +22,8 @@ Optional properties:
register files".
- rockchip,companion_grf_quirk : when set driver will request
"rockchip,usbgrf" phandle as one companion-grf.
+ - rockchip,otg_mux_irq_quirk: set if otg-id/otg-bvalid/linestate irqs
+ are multiplexed to one irq in otg-port on some SoCs.
Required nodes : a sub-node is required for each port the phy provides.
The sub-node name is used to identify host or otg port,
@@ -36,6 +38,9 @@ Required properties (port (child) node):
* "otg-id" : for the otg id interrupt.
* "otg-bvalid" : for the otg vbus interrupt.
* "linestate" : for the host/otg linestate interrupt.
+ * "otg-mux" : otg-port interrupt, which multiplex otg-id/otg-bvalid/
+ linestate irqs to one irq. Should specify if
+ rockchip,otg_mux_irq_quirk property is set.
I'd think that should be auto-detectable in the driver without the quirk
property above?
I.e. check for the otg-mux interrupt first on probe and if can be found, you
know that this is the case, otherwise look for the regular interrupts.
Also I would write that down a bit differently, so that it doesn't confuse
people. Something similar to:
- interrupt-names : a list which should
+ Regular case:
* "otg-id" : for the otg id interrupt.
* "otg-bvalid" : for the otg vbus interrupt.
* "linestate" : for the host/otg linestate interrupt.
+ Some socs use one interrupt with the obove muxed together, so for these
+ * "otg-mux" : otg-port interrupt, which multiplex otg-id/otg-bvalid/
+ linestate irqs to one irq.
Heiko
Thanks for your comments, I will fix it in next version.
BR.
Frank
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