From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1760842AbbJ3US2 (ORCPT ); Fri, 30 Oct 2015 16:18:28 -0400 Received: from mail-pa0-f46.google.com ([209.85.220.46]:33258 "EHLO mail-pa0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1760776AbbJ3USZ (ORCPT ); Fri, 30 Oct 2015 16:18:25 -0400 From: Douglas Anderson To: johnyoun@synopsys.com, balbi@ti.com Cc: heiko@sntech.de, gregkh@linuxfoundation.org, lyz@rock-chips.com, wulf@rock-chips.com, Doug Anderson , robh+dt@kernel.org, pawel.moll@arm.com, mark.rutland@arm.com, ijc+devicetree@hellion.org.uk, galak@codeaurora.org, linux@arm.linux.org.uk, linux-arm-kernel@lists.infradead.org, linux-rockchip@lists.infradead.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v2 2/2] ARM: dts: rockchip: Point rk3288 dwc2 usb at the full PHY reset Date: Fri, 30 Oct 2015 13:17:54 -0700 Message-Id: <1446236275-12698-3-git-send-email-dianders@chromium.org> X-Mailer: git-send-email 2.6.0.rc2.230.g3dd15c0 In-Reply-To: <1446236275-12698-1-git-send-email-dianders@chromium.org> References: <1446236275-12698-1-git-send-email-dianders@chromium.org> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Doug Anderson The "host1" port (AKA the dwc2 port that isn't the OTG port) on rk3288 has a hardware errata that causes everything to get confused when we get a remote wakeup. We'll use the reset that's in the CRU to reset the port when it's in a bad state. Note that we add the reset to both dwc2 controllers even though only one has the errata in case we find some other use for this reset that's unrelated to the current hardware errata. Only the host port gets the quirk property, though. Signed-off-by: Douglas Anderson --- Changes in v2: - Use a full PHY reset for safety; no PHY changes needed for that. arch/arm/boot/dts/rk3288.dtsi | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/arch/arm/boot/dts/rk3288.dtsi b/arch/arm/boot/dts/rk3288.dtsi index 906e938fb6bf..58773beb283f 100644 --- a/arch/arm/boot/dts/rk3288.dtsi +++ b/arch/arm/boot/dts/rk3288.dtsi @@ -496,6 +496,9 @@ dr_mode = "host"; phys = <&usbphy2>; phy-names = "usb2-phy"; + resets = <&cru SRST_USBHOST1_PHY>; + reset-names = "phy-full-reset"; + snps,need-phy-full-reset-on-wake; status = "disabled"; }; @@ -513,6 +516,8 @@ g-use-dma; phys = <&usbphy0>; phy-names = "usb2-phy"; + resets = <&cru SRST_USBOTG_PHY>; + reset-names = "phy-full-reset"; status = "disabled"; }; -- 2.6.0.rc2.230.g3dd15c0