[RFC/RFT v2 00/12] ath9k: ASPM fixes
From: Stanislaw Gruszka <hidden>
Date: 2011-07-27 12:13:52
This patch series try to fix ath9k ASPM. Some of patches are cleanup only or do merging common code (with e1000e driver). With CONFIG_PCIEASPM it's possible to change ASPM settings on runtime via /sys/module/pcie_aspm/parameters/policy . However most drivers I looked at assume this setting is constant. I add a callback to pci driver to inform about the change, and allow driver to do needed hw related changes. Currently only ath9k implement the callback, but I think it will be useful for other drivers (i.e. iwlwifi, rtlwifi) that do some own ASPM handling. These patches needs wide testing as they may work on some systems and not work on others, that can depend on PCIe bridges. Cc: Jesse Barnes <redacted> Cc: linux-pci@vger.kernel.org Cc: Jeff Kirsher <redacted> Cc: e1000-devel@lists.sourceforge.net --- drivers/net/e1000e/netdev.c | 31 ---------- drivers/net/wireless/ath/ath9k/ar9002_hw.c | 12 --- drivers/net/wireless/ath/ath9k/ar9003_hw.c | 12 --- drivers/net/wireless/ath/ath9k/hw-ops.h | 9 +- drivers/net/wireless/ath/ath9k/hw.c | 17 +++-- drivers/net/wireless/ath/ath9k/hw.h | 12 +-- drivers/net/wireless/ath/ath9k/main.c | 8 -- drivers/net/wireless/ath/ath9k/pci.c | 88 ++++++++++++++++++++++------- drivers/pci/pcie/Makefile | 3 drivers/pci/pcie/aspm.c | 46 ++++++++++++++- include/linux/pci-aspm.h | 2 include/linux/pci.h | 3 12 files changed, 148 insertions(+), 95 deletions(-)