From patchwork Mon Aug 15 08:50:29 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: William Wu X-Patchwork-Id: 9280463 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 1D03360780 for ; Mon, 15 Aug 2016 08:53:54 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 0BE3028BE0 for ; Mon, 15 Aug 2016 08:53:54 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 0091928BE3; Mon, 15 Aug 2016 08:53:53 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-4.2 required=2.0 tests=BAYES_00, RCVD_IN_DNSWL_MED autolearn=unavailable version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.9]) (using TLSv1.2 with cipher AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id F31A228BE1 for ; Mon, 15 Aug 2016 08:53:52 +0000 (UTC) Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.85_2 #1 (Red Hat Linux)) id 1bZDea-0001md-M2; Mon, 15 Aug 2016 08:53:52 +0000 Received: from regular1.263xmail.com ([211.150.99.136]) by bombadil.infradead.org with esmtps (Exim 4.85_2 #1 (Red Hat Linux)) id 1bZDeX-0001hT-9j for linux-rockchip@lists.infradead.org; Mon, 15 Aug 2016 08:53:50 +0000 Received: from william.wu?rock-chips.com (unknown [192.168.167.234]) by regular1.263xmail.com (Postfix) with SMTP id BED6CCE; Mon, 15 Aug 2016 16:53:23 +0800 (CST) X-263anti-spam: KSV:0; X-MAIL-GRAY: 0 X-MAIL-DELIVERY: 1 X-KSVirus-check: 0 X-ABS-CHECKED: 4 addr_info_check: 0 Received: from localhost.localdomain (localhost.localdomain [127.0.0.1]) by smtp.263.net (Postfix) with ESMTP id A75D756F9; Mon, 15 Aug 2016 16:52:53 +0800 (CST) X-RL-SENDER: william.wu@rock-chips.com X-FST-TO: gregkh@linuxfoundation.org X-SENDER-IP: 58.22.7.114 X-LOGIN-NAME: william.wu@rock-chips.com X-UNIQUE-TAG: X-ATTACHMENT-NUM: 0 X-SENDER: wulf@rock-chips.com X-DNS-TYPE: 0 Received: from unknown (unknown [58.22.7.114]) by smtp.263.net (Postfix) whith SMTP id 15897SHIBAI; Mon, 15 Aug 2016 16:53:03 +0800 (CST) From: William Wu To: gregkh@linuxfoundation.org, balbi@kernel.org, heiko@sntech.de Subject: [PATCH v10 3/5] usb: dwc3: add dis_del_phy_power_chg_quirk Date: Mon, 15 Aug 2016 16:50:29 +0800 Message-Id: <1471251031-17084-4-git-send-email-william.wu@rock-chips.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1471251031-17084-1-git-send-email-william.wu@rock-chips.com> References: <1471251031-17084-1-git-send-email-william.wu@rock-chips.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20160815_015349_828351_8B311796 X-CRM114-Status: UNSURE ( 7.48 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-rockchip@lists.infradead.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: Upstream kernel work for Rockchip platforms List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: huangtao@rock-chips.com, mark.rutland@arm.com, William Wu , sergei.shtylyov@cogentembedded.com, devicetree@vger.kernel.org, frank.wang@rock-chips.com, linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org, kever.yang@rock-chips.com, dianders@google.com, linux-rockchip@lists.infradead.org, robh+dt@kernel.org, eddie.cai@rock-chips.com, zyw@rock-chips.com, briannorris@google.com, John.Youn@synopsys.com, zhengsq@rock-chips.com MIME-Version: 1.0 Sender: "Linux-rockchip" Errors-To: linux-rockchip-bounces+patchwork-linux-rockchip=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP Add a quirk to clear the GUSB3PIPECTL.DELAYP1TRANS bit, which specifies whether disable delay PHY power change from P0 to P1/P2/P3 when link state changing from U0 to U1/U2/U3 respectively. Signed-off-by: William Wu Acked-by: Rob Herring --- Changes in v10: - None Changes in v9: - None Changes in v8: - add Acked-by (Rob Herring) Changes in v7: - None Changes in v6: - use '-' instead of '_' in dts (Rob Herring) Changes in v5: - None Changes in v4: - rebase on top of balbi testing/next, remove pdata (balbi) Changes in v3: - None Changes in v2: - None Documentation/devicetree/bindings/usb/dwc3.txt | 2 ++ drivers/usb/dwc3/core.c | 5 +++++ drivers/usb/dwc3/core.h | 3 +++ 3 files changed, 10 insertions(+) diff --git a/Documentation/devicetree/bindings/usb/dwc3.txt b/Documentation/devicetree/bindings/usb/dwc3.txt index 020b0e9..e96bfc2 100644 --- a/Documentation/devicetree/bindings/usb/dwc3.txt +++ b/Documentation/devicetree/bindings/usb/dwc3.txt @@ -42,6 +42,8 @@ Optional properties: - snps,dis-u2-freeclk-exists-quirk: when set, clear the u2_freeclk_exists in GUSB2PHYCFG, specify that USB2 PHY doesn't provide a free-running PHY clock. + - snps,dis-del-phy-power-chg-quirk: when set core will change PHY power + from P0 to P1/P2/P3 without delay. - snps,is-utmi-l1-suspend: true when DWC3 asserts output signal utmi_l1_suspend_n, false when asserts utmi_sleep_n - snps,hird-threshold: HIRD threshold diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c index cdac019..e887b38 100644 --- a/drivers/usb/dwc3/core.c +++ b/drivers/usb/dwc3/core.c @@ -448,6 +448,9 @@ static int dwc3_phy_setup(struct dwc3 *dwc) if (dwc->dis_u3_susphy_quirk) reg &= ~DWC3_GUSB3PIPECTL_SUSPHY; + if (dwc->dis_del_phy_power_chg_quirk) + reg &= ~DWC3_GUSB3PIPECTL_DEPOCHANGE; + dwc3_writel(dwc->regs, DWC3_GUSB3PIPECTL(0), reg); reg = dwc3_readl(dwc->regs, DWC3_GUSB2PHYCFG(0)); @@ -947,6 +950,8 @@ static int dwc3_probe(struct platform_device *pdev) "snps,dis_rxdet_inp3_quirk"); dwc->dis_u2_freeclk_exists_quirk = device_property_read_bool(dev, "snps,dis-u2-freeclk-exists-quirk"); + dwc->dis_del_phy_power_chg_quirk = device_property_read_bool(dev, + "snps,dis-del-phy-power-chg-quirk"); dwc->tx_de_emphasis_quirk = device_property_read_bool(dev, "snps,tx_de_emphasis_quirk"); diff --git a/drivers/usb/dwc3/core.h b/drivers/usb/dwc3/core.h index cc4f551..3d94acd 100644 --- a/drivers/usb/dwc3/core.h +++ b/drivers/usb/dwc3/core.h @@ -818,6 +818,8 @@ struct dwc3_scratchpad_array { * @dis_u2_freeclk_exists_quirk : set if we clear u2_freeclk_exists * in GUSB2PHYCFG, specify that USB2 PHY doesn't * provide a free-running PHY clock. + * @dis_del_phy_power_chg_quirk: set if we disable delay phy power + * change quirk. * @tx_de_emphasis_quirk: set if we enable Tx de-emphasis quirk * @tx_de_emphasis: Tx de-emphasis value * 0 - -6dB de-emphasis @@ -963,6 +965,7 @@ struct dwc3 { unsigned dis_enblslpm_quirk:1; unsigned dis_rxdet_inp3_quirk:1; unsigned dis_u2_freeclk_exists_quirk:1; + unsigned dis_del_phy_power_chg_quirk:1; unsigned tx_de_emphasis_quirk:1; unsigned tx_de_emphasis:2;