Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753094AbdHBL0G (ORCPT ); Wed, 2 Aug 2017 07:26:06 -0400 Received: from gloria.sntech.de ([95.129.55.99]:47692 "EHLO gloria.sntech.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752958AbdHBL0F (ORCPT ); Wed, 2 Aug 2017 07:26:05 -0400 From: Heiko =?ISO-8859-1?Q?St=FCbner?= To: Frank Wang Cc: kishon@ti.com, robh+dt@kernel.org, mark.rutland@arm.com, gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org, linux-rockchip@lists.infradead.org, huangtao@rock-chips.com, william.wu@rock-chips.com, daniel.meng@rock-chips.com, kever.yang@rock-chips.com, andy.yan@rock-chips.com, wmc@rock-chips.com Subject: Re: [PATCH v2 4/5] dt-bindings: phy-rockchip-inno-usb2: add otg mux irq quirk Date: Wed, 02 Aug 2017 13:25:55 +0200 Message-ID: <2188240.QH672TG27n@diego> User-Agent: KMail/5.2.3 (Linux/4.8.0-2-amd64; KDE/5.27.0; x86_64; ; ) In-Reply-To: <1501660390-5956-5-git-send-email-frank.wang@rock-chips.com> References: <1501660390-5956-1-git-send-email-frank.wang@rock-chips.com> <1501660390-5956-5-git-send-email-frank.wang@rock-chips.com> MIME-Version: 1.0 Content-Transfer-Encoding: 7Bit Content-Type: text/plain; charset="us-ascii" Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2344 Lines: 56 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 > --- > 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