From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752619AbcEILwL (ORCPT ); Mon, 9 May 2016 07:52:11 -0400 Received: from regular2.263xmail.com ([211.157.152.5]:58674 "EHLO regular2.263xmail.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751242AbcEILwJ (ORCPT ); Mon, 9 May 2016 07:52:09 -0400 X-Greylist: delayed 302 seconds by postgrey-1.27 at vger.kernel.org; Mon, 09 May 2016 07:52:08 EDT X-263anti-spam: KSV:0; X-MAIL-GRAY: 0 X-MAIL-DELIVERY: 1 X-ABS-CHECKED: 4 X-ADDR-CHECKED: 0 X-KSVirus-check: 0 X-RL-SENDER: william.wu@rock-chips.com X-SENDER-IP: 58.22.7.114 X-LOGIN-NAME: william.wu@rock-chips.com X-UNIQUE-TAG: <631eb3b933b95d3f06bbe65397a51980> X-ATTACHMENT-NUM: 0 X-DNS-TYPE: 0 From: William Wu To: gregkh@linuxfoundation.org, balbi@kernel.org, heiko@sntech.de Cc: briannorris@google.com, dianders@google.com, kever.yang@rock-chips.com, huangtao@rock-chips.com, frank.wang@rock-chips.com, eddie.cai@rock-chips.com, John.Youn@synopsys.com, linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org, William Wu Subject: [PATCH 4/4] usb: dwc3: add dis_del_phy_power_chg_quirk Date: Mon, 9 May 2016 19:46:17 +0800 Message-Id: <1462794377-6528-5-git-send-email-william.wu@rock-chips.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1462794377-6528-1-git-send-email-william.wu@rock-chips.com> References: <1462794377-6528-1-git-send-email-william.wu@rock-chips.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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 --- Documentation/devicetree/bindings/usb/dwc3.txt | 2 ++ drivers/usb/dwc3/core.c | 7 +++++++ drivers/usb/dwc3/core.h | 3 +++ drivers/usb/dwc3/platform_data.h | 1 + 4 files changed, 13 insertions(+) diff --git a/Documentation/devicetree/bindings/usb/dwc3.txt b/Documentation/devicetree/bindings/usb/dwc3.txt index c5e72c8..91b0708 100644 --- a/Documentation/devicetree/bindings/usb/dwc3.txt +++ b/Documentation/devicetree/bindings/usb/dwc3.txt @@ -44,6 +44,8 @@ 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 0205196..db8bad6 100644 --- a/drivers/usb/dwc3/core.c +++ b/drivers/usb/dwc3/core.c @@ -451,6 +451,9 @@ 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)); @@ -918,6 +921,8 @@ 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"); @@ -955,6 +960,8 @@ static int dwc3_probe(struct platform_device *pdev) dwc->dis_rxdet_inp3_quirk = pdata->dis_rxdet_inp3_quirk; dwc->dis_u2_freeclk_exists_quirk = pdata->dis_u2_freeclk_exists_quirk; + dwc->dis_del_phy_power_chg_quirk = + pdata->dis_del_phy_power_chg_quirk; dwc->tx_de_emphasis_quirk = pdata->tx_de_emphasis_quirk; if (pdata->tx_de_emphasis) diff --git a/drivers/usb/dwc3/core.h b/drivers/usb/dwc3/core.h index 1736f87..e15e307 100644 --- a/drivers/usb/dwc3/core.h +++ b/drivers/usb/dwc3/core.h @@ -781,6 +781,8 @@ 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 @@ -926,6 +928,7 @@ 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; diff --git a/drivers/usb/dwc3/platform_data.h b/drivers/usb/dwc3/platform_data.h index 2ce5e2f..412f84d 100644 --- a/drivers/usb/dwc3/platform_data.h +++ b/drivers/usb/dwc3/platform_data.h @@ -45,6 +45,7 @@ struct dwc3_platform_data { 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; -- 1.9.1