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| author | Jon Hunter <jonathanh@nvidia.com> | 2020-02-14 13:53:53 +0000 |
|---|---|---|
| committer | Thierry Reding <treding@nvidia.com> | 2020-03-12 12:14:25 +0100 |
| commit | f9f711efd441ad0d22874be49986d92121862335 (patch) | |
| tree | a9d88bc86da19ad499af2e6c1cf70cb05c3aa76d /.mailmap | |
| parent | dadf79561be0a0133cc3017b1f98e9abe9e90fb7 (diff) | |
| download | linux-f9f711efd441ad0d22874be49986d92121862335.tar.bz2 | |
arm64: tegra: Fix Tegra194 PCIe compatible string
If the kernel configuration option CONFIG_PCIE_DW_PLAT_HOST is enabled
then this can cause the kernel to incorrectly probe the generic
designware PCIe platform driver instead of the Tegra194 designware PCIe
driver. This causes a boot failure on Tegra194 because the necessary
configuration to access the hardware is not performed.
The order in which the compatible strings are populated in Device-Tree
is not relevant in this case, because the kernel will attempt to probe
the device as soon as a driver is loaded and if the generic designware
PCIe driver is loaded first, then this driver will be probed first.
Therefore, to fix this problem, remove the "snps,dw-pcie" string from
the compatible string as we never want this driver to be probe on
Tegra194.
Fixes: 2602c32f15e7 ("arm64: tegra: Add P2U and PCIe controller nodes to Tegra194 DT")
Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Diffstat (limited to '.mailmap')
0 files changed, 0 insertions, 0 deletions