[PATCH] PCI: imx6:don't sleep in atomic context

[Sanjeev Sharma]

If additional PCIe switch get connected between the
host and the NIC,the kernel crashes with "BUG:
scheduling while atomic". To handle this we need to
call mdelay() instead of usleep_range().

For more detail please refer bugzilla.kernel.org, Bug
100031

Signed-off-by: Sanjeev Sharma <sanjeev_sharma@xxxxxxxxxx>
Signed-off-by: David Mueller <dave.mueller@xxxxxx>
---
 drivers/pci/host/pci-imx6.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/pci/host/pci-imx6.c b/drivers/pci/host/pci-imx6.c
index 233a196..9769b13 100644
--- a/drivers/pci/host/pci-imx6.c
+++ b/drivers/pci/host/pci-imx6.c
@@ -499,7 +499,7 @@ static int imx6_pcie_link_up(struct pcie_port *pp)
 		 * Wait a little bit, then re-check if the link finished
 		 * the training.
 		 */
-		usleep_range(1000, 2000);
+		mdelay(1000);
 	}
 	/*
 	 * From L0, initiate MAC entry to gen2 if EP/RC supports gen2.
-- 
1.7.11.7

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