mirror of
https://github.com/torvalds/linux.git
synced 2024-12-17 08:31:39 +00:00
b139f1fb0f
The pasemi pci configuration space write method reads the written location immediately after the write is performed, presumably in order to flush the write. However, configuration space writes are not allowed to be posted, making these reads gratuitous. Furthermore, this behavior potentially causes us to violate the PCI PM spec when changing between e.g. D0 and D3 states, because a delay of up to 10ms may be required before the OS accesses configuration space after the write which initiates the transition. Remove the unnecessary reads from pa_pxp_write_config. Signed-off-by: Nathan Lynch <ntl@pobox.com> Acked-by: Olof Johansson <olof@lixom.net> Signed-off-by: Paul Mackerras <paulus@samba.org> |
||
|---|---|---|
| .. | ||
| cpufreq.c | ||
| electra_ide.c | ||
| gpio_mdio.c | ||
| idle.c | ||
| iommu.c | ||
| Kconfig | ||
| Makefile | ||
| pasemi.h | ||
| pci.c | ||
| powersave.S | ||
| setup.c | ||
| time.c | ||