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| author |  Rick Wertenbroek <rick.wertenbroek@gmail.com>
| 2024-04-03 16:45:08 +0200 |
|---|---|---|
| committer |  Bjorn Helgaas <bhelgaas@google.com>
| 2024-05-15 16:07:30 -0500 |
| commit | 2dba285caba53f309d6060fca911b43d63f41697 (patch) | |
| tree | 419e5390eba9bac1114b722791797fe807182c2a /drivers/pci/probe.c | |
| parent | PCI: rockchip-ep: Set a 64-bit BAR if requested (diff) | |
| download | linux-2dba285caba53f309d6060fca911b43d63f41697.tar.gz linux-2dba285caba53f309d6060fca911b43d63f41697.tar.bz2 linux-2dba285caba53f309d6060fca911b43d63f41697.zip | |
PCI: rockchip-ep: Remove wrong mask on subsys_vendor_id
Remove wrong mask on subsys_vendor_id. Both the Vendor ID and Subsystem
Vendor ID are u16 variables and are written to a u32 register of the
controller. The Subsystem Vendor ID was always 0 because the u16 value
was masked incorrectly with GENMASK(31,16) resulting in all lower 16
bits being set to 0 prior to the shift.
Remove both masks as they are unnecessary and set the register correctly
i.e., the lower 16-bits are the Vendor ID and the upper 16-bits are the
Subsystem Vendor ID.
This is documented in the RK3399 TRM section 17.6.7.1.17
[kwilczynski: removed unnecesary newline]
Fixes: cf590b078391 ("PCI: rockchip: Add EP driver for Rockchip PCIe controller")
Link: https://lore.kernel.org/linux-pci/20240403144508.489835-1-rick.wertenbroek@gmail.com
Signed-off-by: Rick Wertenbroek <rick.wertenbroek@gmail.com>
Signed-off-by: Krzysztof Wilczyński <kwilczynski@kernel.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Damien Le Moal <dlemoal@kernel.org>
Cc: stable@vger.kernel.org
Diffstat (limited to 'drivers/pci/probe.c')
0 files changed, 0 insertions, 0 deletions