From patchwork Wed Dec 28 22:57:03 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Stephen Boyd X-Patchwork-Id: 89208 Delivered-To: patch@linaro.org Received: by 10.140.20.101 with SMTP id 92csp5738975qgi; Wed, 28 Dec 2016 14:57:55 -0800 (PST) X-Received: by 10.99.154.9 with SMTP id o9mr71668229pge.123.1482965875667; Wed, 28 Dec 2016 14:57:55 -0800 (PST) Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id 68si51337689pga.8.2016.12.28.14.57.55; Wed, 28 Dec 2016 14:57:55 -0800 (PST) Received-SPF: pass (google.com: best guess record for domain of linux-arm-msm-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; dkim=neutral (body hash did not verify) header.i=@linaro.org; spf=pass (google.com: best guess record for domain of linux-arm-msm-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-arm-msm-owner@vger.kernel.org; dmarc=fail (p=NONE dis=NONE) header.from=linaro.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752298AbcL1W5f (ORCPT + 9 others); Wed, 28 Dec 2016 17:57:35 -0500 Received: from mail-pg0-f53.google.com ([74.125.83.53]:34398 "EHLO mail-pg0-f53.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752283AbcL1W5d (ORCPT ); Wed, 28 Dec 2016 17:57:33 -0500 Received: by mail-pg0-f53.google.com with SMTP id y62so107848889pgy.1 for ; Wed, 28 Dec 2016 14:57:33 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=uiPCap9vw0qopln027Q7P21/gL7YNr2TplyJKVbjDFI=; b=afaW7uFSZ+XqesHpEaXZrggUHrGXWBTRvzY1vs7o1WLfPBxKnn61J7uJBJ1DklUaFs puLPIplJQx645soDHMOOXYefwSsNUb6vXsSFSGDRyRYhZrYQdC30NCzXZuVRQnuE44dW opa3FHwZwDyVNDxQ9ktNZSFgSANaUhUnIwPgE= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=uiPCap9vw0qopln027Q7P21/gL7YNr2TplyJKVbjDFI=; b=NXUCQC9aFKS/fYadml9pYT0JjtMR5XW2nvc5gyHVLRfXoyl+C217KwE+rJm+ochA8A 2Tq0Uk0sqasWRJKz2jPNFIK12+IJJpD8sES95VGyh9cGZ2P0Mseun1VNIQnurzHktclL 3sikpUInbythxdaUkXaYXsVA6U4s4CZvttC147IUlWQL+GfJ+/1EvunqRB8AlFhGKC7Q gZMrNr6gPRBDIvUv8ku+HYfCkG+53rFo0V/9sujqtVtaAwrg8Ec70aZqpFlZBNAU+xJI 0U44B+Din9p4SIsIBSOgn55TWD2c1JWMUV83nyR2kSnl1KSQDTBDQ9m04F7SRBPsmWbA hcXQ== X-Gm-Message-State: AIkVDXLw17J4D83TH4XqdbCaYLQeyJNw9tY5uCVWP4I1w77EHe6pxX5MvDb8FmNExQdvaLCA X-Received: by 10.98.75.75 with SMTP id y72mr31867458pfa.23.1482965853163; Wed, 28 Dec 2016 14:57:33 -0800 (PST) Received: from localhost.localdomain (i-global254.qualcomm.com. [199.106.103.254]) by smtp.gmail.com with ESMTPSA id x4sm100355741pgc.14.2016.12.28.14.57.32 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Wed, 28 Dec 2016 14:57:32 -0800 (PST) From: Stephen Boyd To: linux-usb@vger.kernel.org Cc: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org, Andy Gross , Bjorn Andersson , Neil Armstrong , Arnd Bergmann , Felipe Balbi , Peter Chen , Greg Kroah-Hartman Subject: [PATCH v6 17/25] usb: chipidea: msm: Restore wrapper settings after reset Date: Wed, 28 Dec 2016 14:57:03 -0800 Message-Id: <20161228225711.698-18-stephen.boyd@linaro.org> X-Mailer: git-send-email 2.10.0.297.gf6727b0 In-Reply-To: <20161228225711.698-1-stephen.boyd@linaro.org> References: <20161228225711.698-1-stephen.boyd@linaro.org> Sender: linux-arm-msm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org When the RESET bit is set in the USBCMD register it resets quite a few of the wrapper's registers to their reset state. This includes the GENCONFIG and GENCONFIG2 registers. Currently this is done by the usb phy and ehci-msm drivers writing into the controller wrapper's MMIO address space. Let's consolidate the register writes into the wrapper driver instead so that we clearly split the wrapper from the phys. Acked-by: Peter Chen Cc: Greg Kroah-Hartman Signed-off-by: Stephen Boyd --- drivers/usb/chipidea/ci_hdrc_msm.c | 39 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 39 insertions(+) -- 2.10.0.297.gf6727b0 -- To unsubscribe from this list: send the line "unsubscribe linux-arm-msm" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html diff --git a/drivers/usb/chipidea/ci_hdrc_msm.c b/drivers/usb/chipidea/ci_hdrc_msm.c index 4b0aadc2be2f..333817291798 100644 --- a/drivers/usb/chipidea/ci_hdrc_msm.c +++ b/drivers/usb/chipidea/ci_hdrc_msm.c @@ -14,11 +14,22 @@ #include #include #include +#include +#include #include "ci.h" #define HS_PHY_AHB_MODE 0x0098 +#define HS_PHY_GENCONFIG 0x009c +#define HS_PHY_TXFIFO_IDLE_FORCE_DIS BIT(4) + +#define HS_PHY_GENCONFIG_2 0x00a0 +#define HS_PHY_SESS_VLD_CTRL_EN BIT(7) +#define HS_PHY_ULPI_TX_PKT_EN_CLR_FIX BIT(19) + +#define HSPHY_SESS_VLD_CTRL BIT(25) + /* Vendor base starts at 0x200 beyond CI base */ #define HS_PHY_SEC_CTRL 0x0078 #define HS_PHY_DIG_CLAMP_N BIT(16) @@ -29,6 +40,7 @@ struct ci_hdrc_msm { struct clk *iface_clk; struct clk *fs_clk; bool secondary_phy; + bool hsic; void __iomem *base; }; @@ -48,6 +60,24 @@ static void ci_hdrc_msm_notify_event(struct ci_hdrc *ci, unsigned event) /* use AHB transactor, allow posted data writes */ hw_write_id_reg(ci, HS_PHY_AHB_MODE, 0xffffffff, 0x8); + + /* workaround for rx buffer collision issue */ + hw_write_id_reg(ci, HS_PHY_GENCONFIG, + HS_PHY_TXFIFO_IDLE_FORCE_DIS, 0); + + if (!msm_ci->hsic) + hw_write_id_reg(ci, HS_PHY_GENCONFIG_2, + HS_PHY_ULPI_TX_PKT_EN_CLR_FIX, 0); + + if (!IS_ERR(ci->platdata->vbus_extcon.edev)) { + hw_write_id_reg(ci, HS_PHY_GENCONFIG_2, + HS_PHY_SESS_VLD_CTRL_EN, + HS_PHY_SESS_VLD_CTRL_EN); + hw_write(ci, OP_USBCMD, HSPHY_SESS_VLD_CTRL, + HSPHY_SESS_VLD_CTRL); + + } + usb_phy_init(ci->usb_phy); break; case CI_HDRC_CONTROLLER_STOPPED_EVENT: @@ -116,6 +146,7 @@ static int ci_hdrc_msm_probe(struct platform_device *pdev) struct reset_control *reset; struct resource *res; int ret; + struct device_node *ulpi_node, *phy_node; dev_dbg(&pdev->dev, "ci_hdrc_msm_probe\n"); @@ -181,6 +212,14 @@ static int ci_hdrc_msm_probe(struct platform_device *pdev) if (ret) goto err_mux; + ulpi_node = of_find_node_by_name(pdev->dev.of_node, "ulpi"); + if (ulpi_node) { + phy_node = of_get_next_available_child(ulpi_node, NULL); + ci->hsic = of_device_is_compatible(phy_node, "qcom,usb-hsic-phy"); + of_node_put(phy_node); + } + of_node_put(ulpi_node); + plat_ci = ci_hdrc_add_device(&pdev->dev, pdev->resource, pdev->num_resources, &ci_hdrc_msm_platdata);