From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754989AbaHULeW (ORCPT ); Thu, 21 Aug 2014 07:34:22 -0400 Received: from mga02.intel.com ([134.134.136.20]:29709 "EHLO mga02.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754941AbaHULeO (ORCPT ); Thu, 21 Aug 2014 07:34:14 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.01,908,1400050800"; d="scan'208";a="591291334" From: Heikki Krogerus To: Kishon Vijay Abraham I Cc: Greg Kroah-Hartman , Felipe Balbi , Vivek Gautam , linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org Subject: [PATCH 6/6] usb: dwc3: host: convey the PHYs to xhci Date: Thu, 21 Aug 2014 14:33:23 +0300 Message-Id: <1408620803-10464-7-git-send-email-heikki.krogerus@linux.intel.com> X-Mailer: git-send-email 2.1.0 In-Reply-To: <1408620803-10464-1-git-send-email-heikki.krogerus@linux.intel.com> References: <1408620803-10464-1-git-send-email-heikki.krogerus@linux.intel.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On some platforms a PHY may need to be handled also in the host controller driver. Exynos5420 SoC requires some "PHY tuning" based on the USB speed. This patch delivers dwc3's PHYs to the xhci platform device when it's created. Signed-off-by: Heikki Krogerus Tested-by: Vivek Gautam Acked-by: Felipe Balbi --- drivers/usb/dwc3/host.c | 22 ++++++++++++++++------ 1 file changed, 16 insertions(+), 6 deletions(-) diff --git a/drivers/usb/dwc3/host.c b/drivers/usb/dwc3/host.c index dcb8ca0..12bfd3c 100644 --- a/drivers/usb/dwc3/host.c +++ b/drivers/usb/dwc3/host.c @@ -29,8 +29,7 @@ int dwc3_host_init(struct dwc3 *dwc) xhci = platform_device_alloc("xhci-hcd", PLATFORM_DEVID_AUTO); if (!xhci) { dev_err(dwc->dev, "couldn't allocate xHCI device\n"); - ret = -ENOMEM; - goto err0; + return -ENOMEM; } dma_set_coherent_mask(&xhci->dev, dwc->dev->coherent_dma_mask); @@ -60,22 +59,33 @@ int dwc3_host_init(struct dwc3 *dwc) goto err1; } + phy_create_lookup(dwc->usb2_generic_phy, "usb2-phy", + dev_name(&xhci->dev)); + phy_create_lookup(dwc->usb3_generic_phy, "usb3-phy", + dev_name(&xhci->dev)); + ret = platform_device_add(xhci); if (ret) { dev_err(dwc->dev, "failed to register xHCI device\n"); - goto err1; + goto err2; } return 0; - +err2: + phy_remove_lookup(dwc->usb2_generic_phy, "usb2-phy", + dev_name(&xhci->dev)); + phy_remove_lookup(dwc->usb3_generic_phy, "usb3-phy", + dev_name(&xhci->dev)); err1: platform_device_put(xhci); - -err0: return ret; } void dwc3_host_exit(struct dwc3 *dwc) { + phy_remove_lookup(dwc->usb2_generic_phy, "usb2-phy", + dev_name(&dwc->xhci->dev)); + phy_remove_lookup(dwc->usb3_generic_phy, "usb3-phy", + dev_name(&dwc->xhci->dev)); platform_device_unregister(dwc->xhci); } -- 2.1.0