diff options
| author | Max Krummenacher <max.krummenacher@toradex.com> | 2014-06-23 17:22:22 +0200 |
|---|---|---|
| committer | Max Krummenacher <max.krummenacher@toradex.com> | 2014-06-23 17:22:22 +0200 |
| commit | b5d9cf67a9593c07ab9d74f1d5cf83a497d577a4 (patch) | |
| tree | 474b580e36604cb5043940664a806b516e0f8104 /drivers | |
| parent | 67a4ed359a71a0bd1342b745413336736ef9f841 (diff) | |
pci-imx6.c: fix BUG, scheduling while atomic
Depending on the preemptive settings 'usleep_range' are called in code
where this is not allowed. Use udelay instead of usleep_range
BUG: scheduling while atomic: swapper/0/1/0x00000002
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/pci/host/pci-imx6.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/pci/host/pci-imx6.c b/drivers/pci/host/pci-imx6.c index ba8f1e6212aa..b434d6228430 100644 --- a/drivers/pci/host/pci-imx6.c +++ b/drivers/pci/host/pci-imx6.c @@ -449,7 +449,8 @@ static void imx6_pcie_reset_phy(struct pcie_port *pp) PHY_RX_OVRD_IN_LO_RX_PLL_EN); pcie_phy_write(pp->dbi_base, PHY_RX_OVRD_IN_LO, temp); - usleep_range(2000, 3000); + /* BUG: scheduling while atomic: swapper/0/1/0x00000002, use udelay instead of usleep_range*/ + udelay(2000); pcie_phy_read(pp->dbi_base, PHY_RX_OVRD_IN_LO, &temp); temp &= ~(PHY_RX_OVRD_IN_LO_RX_DATA_EN | @@ -491,7 +492,8 @@ 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); + /* BUG: scheduling while atomic: swapper/0/1/0x00000002, use udelay instead of usleep_range*/ + udelay(1000); } /* * From L0, initiate MAC entry to gen2 if EP/RC supports gen2. |