From mboxrd@z Thu Jan 1 00:00:00 1970 From: Douglas Anderson Subject: [PATCH v2 1/4] dt-bindings: usb: dwc2: Document quirk to reset PHY upon wakeup Date: Tue, 16 Apr 2019 14:53:48 -0700 Message-ID: <20190416215351.242246-2-dianders@chromium.org> References: <20190416215351.242246-1-dianders@chromium.org> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20190416215351.242246-1-dianders-F7+t8E8rja9g9hUCZPvPmw@public.gmane.org> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "Linux-rockchip" Errors-To: linux-rockchip-bounces+glpar-linux-rockchip=m.gmane.org-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org To: Rob Herring , Minas Harutyunyan , Heiko Stuebner , Felipe Balbi Cc: Mark Rutland , devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-usb-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, amstan-F7+t8E8rja9g9hUCZPvPmw@public.gmane.org, Greg Kroah-Hartman , Randy Li , Douglas Anderson , linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-rockchip-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org, mka-F7+t8E8rja9g9hUCZPvPmw@public.gmane.org, ryandcase-F7+t8E8rja9g9hUCZPvPmw@public.gmane.org, Elaine Zhang , jwerner-F7+t8E8rja9g9hUCZPvPmw@public.gmane.org List-Id: linux-rockchip.vger.kernel.org On Rockchip rk3288 there's a hardware quirk where we need to assert the reset signal to the PHY when we get a remote wakeup on one of the two ports. Document this quirk in the bindings. Signed-off-by: Douglas Anderson Reviewed-by: Matthias Kaehlcke --- Changes in v2: None Documentation/devicetree/bindings/usb/dwc2.txt | 2 ++ 1 file changed, 2 insertions(+) diff --git a/Documentation/devicetree/bindings/usb/dwc2.txt b/Documentation/devicetree/bindings/usb/dwc2.txt index 6dc3c4a34483..f70f3aee4bfc 100644 --- a/Documentation/devicetree/bindings/usb/dwc2.txt +++ b/Documentation/devicetree/bindings/usb/dwc2.txt @@ -37,6 +37,8 @@ Refer to phy/phy-bindings.txt for generic phy consumer properties - g-rx-fifo-size: size of rx fifo size in gadget mode. - g-np-tx-fifo-size: size of non-periodic tx fifo size in gadget mode. - g-tx-fifo-size: size of periodic tx fifo per endpoint (except ep0) in gadget mode. +- snps,reset-phy-on-wake: If present indicates that we need to reset the PHY when + we detect a wakeup. This is due to a hardware errata. Deprecated properties: - g-use-dma: gadget DMA mode is automatically detected -- 2.21.0.593.g511ec345e18-goog From mboxrd@z Thu Jan 1 00:00:00 1970 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: base64 Subject: [v2,1/4] dt-bindings: usb: dwc2: Document quirk to reset PHY upon wakeup From: Doug Anderson Message-Id: <20190416215351.242246-2-dianders@chromium.org> Date: Tue, 16 Apr 2019 14:53:48 -0700 To: Rob Herring , Minas Harutyunyan , Heiko Stuebner , Felipe Balbi Cc: amstan@chromium.org, linux-rockchip@lists.infradead.org, linux-usb@vger.kernel.org, Randy Li , mka@chromium.org, ryandcase@chromium.org, jwerner@chromium.org, Elaine Zhang , Douglas Anderson , devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Greg Kroah-Hartman , Mark Rutland List-ID: T24gUm9ja2NoaXAgcmszMjg4IHRoZXJlJ3MgYSBoYXJkd2FyZSBxdWlyayB3aGVyZSB3ZSBuZWVk IHRvIGFzc2VydAp0aGUgcmVzZXQgc2lnbmFsIHRvIHRoZSBQSFkgd2hlbiB3ZSBnZXQgYSByZW1v dGUgd2FrZXVwIG9uIG9uZSBvZiB0aGUKdHdvIHBvcnRzLiAgRG9jdW1lbnQgdGhpcyBxdWlyayBp biB0aGUgYmluZGluZ3MuCgpTaWduZWQtb2ZmLWJ5OiBEb3VnbGFzIEFuZGVyc29uIDxkaWFuZGVy c0BjaHJvbWl1bS5vcmc+ClJldmlld2VkLWJ5OiBNYXR0aGlhcyBLYWVobGNrZSA8bWthQGNocm9t aXVtLm9yZz4KLS0tCgpDaGFuZ2VzIGluIHYyOiBOb25lCgogRG9jdW1lbnRhdGlvbi9kZXZpY2V0 cmVlL2JpbmRpbmdzL3VzYi9kd2MyLnR4dCB8IDIgKysKIDEgZmlsZSBjaGFuZ2VkLCAyIGluc2Vy dGlvbnMoKykKCmRpZmYgLS1naXQgYS9Eb2N1bWVudGF0aW9uL2RldmljZXRyZWUvYmluZGluZ3Mv dXNiL2R3YzIudHh0IGIvRG9jdW1lbnRhdGlvbi9kZXZpY2V0cmVlL2JpbmRpbmdzL3VzYi9kd2My LnR4dAppbmRleCA2ZGMzYzRhMzQ0ODMuLmY3MGYzYWVlNGJmYyAxMDA2NDQKLS0tIGEvRG9jdW1l bnRhdGlvbi9kZXZpY2V0cmVlL2JpbmRpbmdzL3VzYi9kd2MyLnR4dAorKysgYi9Eb2N1bWVudGF0 aW9uL2RldmljZXRyZWUvYmluZGluZ3MvdXNiL2R3YzIudHh0CkBAIC0zNyw2ICszNyw4IEBAIFJl ZmVyIHRvIHBoeS9waHktYmluZGluZ3MudHh0IGZvciBnZW5lcmljIHBoeSBjb25zdW1lciBwcm9w ZXJ0aWVzCiAtIGctcngtZmlmby1zaXplOiBzaXplIG9mIHJ4IGZpZm8gc2l6ZSBpbiBnYWRnZXQg bW9kZS4KIC0gZy1ucC10eC1maWZvLXNpemU6IHNpemUgb2Ygbm9uLXBlcmlvZGljIHR4IGZpZm8g c2l6ZSBpbiBnYWRnZXQgbW9kZS4KIC0gZy10eC1maWZvLXNpemU6IHNpemUgb2YgcGVyaW9kaWMg dHggZmlmbyBwZXIgZW5kcG9pbnQgKGV4Y2VwdCBlcDApIGluIGdhZGdldCBtb2RlLgorLSBzbnBz LHJlc2V0LXBoeS1vbi13YWtlOiBJZiBwcmVzZW50IGluZGljYXRlcyB0aGF0IHdlIG5lZWQgdG8g cmVzZXQgdGhlIFBIWSB3aGVuCisgICAgICAgICAgICAgICAgICAgICAgICAgIHdlIGRldGVjdCBh IHdha2V1cC4gIFRoaXMgaXMgZHVlIHRvIGEgaGFyZHdhcmUgZXJyYXRhLgogCiBEZXByZWNhdGVk IHByb3BlcnRpZXM6CiAtIGctdXNlLWRtYTogZ2FkZ2V0IERNQSBtb2RlIGlzIGF1dG9tYXRpY2Fs bHkgZGV0ZWN0ZWQK From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.0 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_PASS,T_DKIMWL_WL_HIGH,URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 5429FC10F14 for ; 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Tue, 16 Apr 2019 14:54:13 -0700 (PDT) Received: from tictac2.mtv.corp.google.com ([2620:15c:202:1:24fa:e766:52c9:e3b2]) by smtp.gmail.com with ESMTPSA id b6sm8156770pgt.58.2019.04.16.14.54.11 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Tue, 16 Apr 2019 14:54:12 -0700 (PDT) From: Douglas Anderson To: Rob Herring , Minas Harutyunyan , Heiko Stuebner , Felipe Balbi Cc: amstan@chromium.org, linux-rockchip@lists.infradead.org, linux-usb@vger.kernel.org, Randy Li , mka@chromium.org, ryandcase@chromium.org, jwerner@chromium.org, Elaine Zhang , Douglas Anderson , devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Greg Kroah-Hartman , Mark Rutland Subject: [PATCH v2 1/4] dt-bindings: usb: dwc2: Document quirk to reset PHY upon wakeup Date: Tue, 16 Apr 2019 14:53:48 -0700 Message-Id: <20190416215351.242246-2-dianders@chromium.org> X-Mailer: git-send-email 2.21.0.593.g511ec345e18-goog In-Reply-To: <20190416215351.242246-1-dianders@chromium.org> References: <20190416215351.242246-1-dianders@chromium.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-usb-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org Content-Type: text/plain; charset="UTF-8" Message-ID: <20190416215348.Ujo3sriVVySZbNayzPIH53H1btV79XSJJGsMDDKQqMo@z> On Rockchip rk3288 there's a hardware quirk where we need to assert the reset signal to the PHY when we get a remote wakeup on one of the two ports. Document this quirk in the bindings. Signed-off-by: Douglas Anderson Reviewed-by: Matthias Kaehlcke --- Changes in v2: None Documentation/devicetree/bindings/usb/dwc2.txt | 2 ++ 1 file changed, 2 insertions(+) diff --git a/Documentation/devicetree/bindings/usb/dwc2.txt b/Documentation/devicetree/bindings/usb/dwc2.txt index 6dc3c4a34483..f70f3aee4bfc 100644 --- a/Documentation/devicetree/bindings/usb/dwc2.txt +++ b/Documentation/devicetree/bindings/usb/dwc2.txt @@ -37,6 +37,8 @@ Refer to phy/phy-bindings.txt for generic phy consumer properties - g-rx-fifo-size: size of rx fifo size in gadget mode. - g-np-tx-fifo-size: size of non-periodic tx fifo size in gadget mode. - g-tx-fifo-size: size of periodic tx fifo per endpoint (except ep0) in gadget mode. +- snps,reset-phy-on-wake: If present indicates that we need to reset the PHY when + we detect a wakeup. This is due to a hardware errata. Deprecated properties: - g-use-dma: gadget DMA mode is automatically detected -- 2.21.0.593.g511ec345e18-goog