[PATCH v2] Revert "usb: host: ehci-msm: Use devm_ioremap_resource instead of devm_ioremap"

[Ivan T. Ivanov]

This reverts commit 70843f623b58 ("usb: host: ehci-msm: Use
devm_ioremap_resource instead of devm_ioremap") and commit
e507bf577e5a ("host: ehci-msm: remove duplicate check on resource"),
because msm_otg and this driver are using same address space to
access AHB mode and USB command registers.

Cc: Vivek Gautam <gautam.vivek@xxxxxxxxxxx>
Signed-off-by: Ivan T. Ivanov <ivan.ivanov@xxxxxxxxxx>
---

Changes since v0:

* Add note to patch description that also commit e507bf577e5a is reverted.

 drivers/usb/host/ehci-msm.c | 13 ++++++++++---
 1 file changed, 10 insertions(+), 3 deletions(-)

diff --git a/drivers/usb/host/ehci-msm.c b/drivers/usb/host/ehci-msm.c
index 9db74ca..275c92e 100644
--- a/drivers/usb/host/ehci-msm.c
+++ b/drivers/usb/host/ehci-msm.c
@@ -88,13 +88,20 @@ 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 (IS_ERR(hcd->regs)) {
-		ret = PTR_ERR(hcd->regs);
+	if (!res) {
+		dev_err(&pdev->dev, "Unable to get memory resource\n");
+		ret = -ENODEV;
 		goto put_hcd;
 	}
+
 	hcd->rsrc_start = res->start;
 	hcd->rsrc_len = resource_size(res);
+	hcd->regs = devm_ioremap(&pdev->dev, hcd->rsrc_start, hcd->rsrc_len);
+	if (!hcd->regs) {
+		dev_err(&pdev->dev, "ioremap failed\n");
+		ret = -ENOMEM;
+		goto put_hcd;
+	}

 	/*
 	 * OTG driver takes care of PHY initialization, clock management,
--
1.9.1

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