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| author | Jon Derrick <jonathan.derrick@intel.com> | 2020-05-11 12:21:14 -0400 |
|---|---|---|
| committer | Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> | 2020-05-22 12:39:35 +0100 |
| commit | c88d19181771bd189147681ef38fc1533ebeff4c (patch) | |
| tree | b2b31f4dedfb65128ce5b1ed7324c8124fad97a5 /drivers/pci | |
| parent | 8f3d9f354286745c751374f5f1fcafee6b3f3136 (diff) | |
| download | linux-c88d19181771bd189147681ef38fc1533ebeff4c.tar.gz linux-c88d19181771bd189147681ef38fc1533ebeff4c.tar.bz2 linux-c88d19181771bd189147681ef38fc1533ebeff4c.zip | |
PCI: pci-bridge-emul: Fix PCIe bit conflicts
This patch fixes two bit conflicts in the pci-bridge-emul driver:
1. Bit 3 of Device Status (19 of Device Control) is marked as both
Write-1-to-Clear and Read-Only. It should be Write-1-to-Clear.
The Read-Only and Reserved bitmasks are shifted by 1 bit due to this
error.
2. Bit 12 of Slot Control is marked as both Read-Write and Reserved.
It should be Read-Write.
Link: https://lore.kernel.org/r/20200511162117.6674-2-jonathan.derrick@intel.com
Signed-off-by: Jon Derrick <jonathan.derrick@intel.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Acked-by: Rob Herring <robh@kernel.org>
Diffstat (limited to 'drivers/pci')
| -rw-r--r-- | drivers/pci/pci-bridge-emul.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/pci/pci-bridge-emul.c b/drivers/pci/pci-bridge-emul.c index 4f4f54bc732e..faa414655f33 100644 --- a/drivers/pci/pci-bridge-emul.c +++ b/drivers/pci/pci-bridge-emul.c @@ -185,8 +185,8 @@ static const struct pci_bridge_reg_behavior pcie_cap_regs_behavior[] = { * RO, the rest is reserved */ .w1c = GENMASK(19, 16), - .ro = GENMASK(20, 19), - .rsvd = GENMASK(31, 21), + .ro = GENMASK(21, 20), + .rsvd = GENMASK(31, 22), }, [PCI_EXP_LNKCAP / 4] = { @@ -226,7 +226,7 @@ static const struct pci_bridge_reg_behavior pcie_cap_regs_behavior[] = { PCI_EXP_SLTSTA_CC | PCI_EXP_SLTSTA_DLLSC) << 16, .ro = (PCI_EXP_SLTSTA_MRLSS | PCI_EXP_SLTSTA_PDS | PCI_EXP_SLTSTA_EIS) << 16, - .rsvd = GENMASK(15, 12) | (GENMASK(15, 9) << 16), + .rsvd = GENMASK(15, 13) | (GENMASK(15, 9) << 16), }, [PCI_EXP_RTCTL / 4] = { |