From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755475AbaGNMvK (ORCPT ); Mon, 14 Jul 2014 08:51:10 -0400 Received: from mail-pd0-f172.google.com ([209.85.192.172]:56138 "EHLO mail-pd0-f172.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755343AbaGNMuU (ORCPT ); Mon, 14 Jul 2014 08:50:20 -0400 From: Vivek Gautam To: linux-usb@vger.kernel.org, linux-samsung-soc@vger.kernel.org Cc: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, gregkh@linuxfoundation.org, kishon@ti.com, kgene.kim@samsung.com, mathias.nyman@intel.com, jwerner@chromium.org, sergei.shtylyov@cogentembedded.com, heikki.krogerus@linux.intel.com, pratyush.anand@st.com, Vivek Gautam Subject: [PATCH v3 2/4] usb: host: xhci-plat: Get PHYs for xhci's hcds Date: Mon, 14 Jul 2014 18:19:56 +0530 Message-Id: <1405342198-3870-3-git-send-email-gautam.vivek@samsung.com> X-Mailer: git-send-email 1.7.10.4 In-Reply-To: <1405342198-3870-1-git-send-email-gautam.vivek@samsung.com> References: <1405342198-3870-1-git-send-email-gautam.vivek@samsung.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org The host controller by itself may sometimes need to handle PHY and/or calibrate some of the PHY settings to get full support out of the PHY controller. The PHY core provides a calibration funtionality now to do so. Therefore, facilitate getting the two possible PHYs, viz. USB 2.0 type (UTMI+) and USB 3.0 type (PIPE3). Signed-off-by: Vivek Gautam --- drivers/usb/host/xhci-plat.c | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) diff --git a/drivers/usb/host/xhci-plat.c b/drivers/usb/host/xhci-plat.c index 1a0cf9f..d097d60 100644 --- a/drivers/usb/host/xhci-plat.c +++ b/drivers/usb/host/xhci-plat.c @@ -16,6 +16,7 @@ #include #include #include +#include #include #include @@ -180,6 +181,14 @@ static int xhci_plat_probe(struct platform_device *pdev) goto put_hcd; } + /* Get possile USB 2.0 type PHY (UTMI+) available with xhci */ + hcd->gen_phy = devm_phy_get(&pdev->dev, "usb2-phy"); + if (IS_ERR(hcd->gen_phy)) { + ret = PTR_ERR(hcd->gen_phy); + if (ret != -ENOSYS && ret != -ENODEV) + dev_dbg(&pdev->dev, "no usb2 phy configured\n"); + } + ret = usb_add_hcd(hcd, irq, IRQF_SHARED); if (ret) goto disable_clk; @@ -209,6 +218,14 @@ static int xhci_plat_probe(struct platform_device *pdev) if (HCC_MAX_PSA(xhci->hcc_params) >= 4) xhci->shared_hcd->can_do_streams = 1; + /* Get possile USB 3.0 type PHY (PIPE3) available with xhci */ + xhci->shared_hcd->gen_phy = devm_phy_get(&pdev->dev, "usb3-phy"); + if (IS_ERR(xhci->shared_hcd->gen_phy)) { + ret = PTR_ERR(xhci->shared_hcd->gen_phy); + if (ret != -ENOSYS && ret != -ENODEV) + dev_dbg(&pdev->dev, "no usb3 phy configured\n"); + } + ret = usb_add_hcd(xhci->shared_hcd, irq, IRQF_SHARED); if (ret) goto put_usb3_hcd; -- 1.7.10.4