Re: [PATCH v2 4/5] PCI: mvebu: add support for reset on GPIO

From: Sebastian Hesselbarth
Date: Wed Aug 14 2013 - 05:25:14 EST

On 08/14/2013 11:07 AM, Thierry Reding wrote:
On Tue, Aug 13, 2013 at 02:25:23PM +0200, Sebastian Hesselbarth wrote:
diff --git a/drivers/pci/host/pci-mvebu.c b/drivers/pci/host/pci-mvebu.c
@@ -897,6 +904,30 @@ static int mvebu_pcie_probe(struct platform_device *pdev)
+ u32 reset_udelay = 20000;
+ udelay(reset_udelay);

udelay(20000) is probably not a good idea. You should probably use
something like usleep_range() or msleep() here. Also see:



thanks for mentioning this. I clearly got distracted from ms to us
switch due to the different reset API convention. As the delay will
be most likely 10ms+, we should change the above to
msleep(reset_udelay/1000) instead.

To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at
Please read the FAQ at