From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Ivan T. Ivanov" Subject: [PATCH] usb: ehci-msm: Don't ioremap configuration space exclusively Date: Thu, 9 Apr 2015 11:33:56 +0300 Message-ID: <1428568436-9134-1-git-send-email-ivan.ivanov@linaro.org> Return-path: Sender: linux-kernel-owner@vger.kernel.org To: Alan Stern Cc: Greg Kroah-Hartman , linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org List-Id: linux-arm-msm@vger.kernel.org This allow same IO space to be shared between HCD and Device controller driver. Which can be loaded simultaneously and started/stopped on demand by USB OTG PHY driver. Signed-off-by: Ivan T. Ivanov --- drivers/usb/host/ehci-msm.c | 10 +++++++--- 1 file changed, 7 insertions(+), 3 deletions(-) diff --git a/drivers/usb/host/ehci-msm.c b/drivers/usb/host/ehci-msm.c index 9db74ca..f059e15 100644 --- a/drivers/usb/host/ehci-msm.c +++ b/drivers/usb/host/ehci-msm.c @@ -88,13 +88,17 @@ static int ehci_msm_probe(struct platform_device *pdev) } res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - hcd->regs = devm_ioremap_resource(&pdev->dev, res); + if (!res) + return -ENODEV; + + hcd->rsrc_start = res->start; + hcd->rsrc_len = resource_size(res); + + hcd->regs = devm_ioremap(&pdev->dev, hcd->rsrc_start, hcd->rsrc_len); if (IS_ERR(hcd->regs)) { ret = PTR_ERR(hcd->regs); goto put_hcd; } - hcd->rsrc_start = res->start; - hcd->rsrc_len = resource_size(res); /* * OTG driver takes care of PHY initialization, clock management, -- 1.9.1