| Message ID | 20230918131103.24119-10-ilpo.jarvinen@linux.intel.com (mailing list archive) |
|---|---|
| State | Not Applicable |
| Delegated to: | Kalle Valo |
| Headers | show |
| Series | PCI/ASPM: Make ASPM in core robust and remove driver workarounds | expand |
Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> writes: > ath10k driver adjusts ASPM state itself which leaves ASPM service > driver in PCI core unaware of the link state changes the driver > implemented. > > Call pci_disable_link_state() and pci_enable_link_state() instead of > adjusting ASPMC field in LNKCTL directly in the driver and let PCI core > handle the ASPM state management. > > Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Acked-by: Kalle Valo <kvalo@kernel.org>
diff --git a/drivers/net/wireless/ath/ath10k/pci.c b/drivers/net/wireless/ath/ath10k/pci.c index 23f366221939..64f7133ce122 100644 --- a/drivers/net/wireless/ath/ath10k/pci.c +++ b/drivers/net/wireless/ath/ath10k/pci.c @@ -1963,9 +1963,8 @@ static int ath10k_pci_hif_start(struct ath10k *ar) ath10k_pci_irq_enable(ar); ath10k_pci_rx_post(ar); - pcie_capability_clear_and_set_word(ar_pci->pdev, PCI_EXP_LNKCTL, - PCI_EXP_LNKCTL_ASPMC, - ar_pci->link_ctl & PCI_EXP_LNKCTL_ASPMC); + pci_enable_link_state(ar_pci->pdev, ar_pci->link_ctl & + (PCIE_LINK_STATE_L0S | PCIE_LINK_STATE_L1)); return 0; } @@ -2822,8 +2821,7 @@ static int ath10k_pci_hif_power_up(struct ath10k *ar, pcie_capability_read_word(ar_pci->pdev, PCI_EXP_LNKCTL, &ar_pci->link_ctl); - pcie_capability_clear_word(ar_pci->pdev, PCI_EXP_LNKCTL, - PCI_EXP_LNKCTL_ASPMC); + pci_disable_link_state(ar_pci->pdev, PCIE_LINK_STATE_L0S | PCIE_LINK_STATE_L1); /* * Bring the target up cleanly.
ath10k driver adjusts ASPM state itself which leaves ASPM service driver in PCI core unaware of the link state changes the driver implemented. Call pci_disable_link_state() and pci_enable_link_state() instead of adjusting ASPMC field in LNKCTL directly in the driver and let PCI core handle the ASPM state management. Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> --- drivers/net/wireless/ath/ath10k/pci.c | 8 +++----- 1 file changed, 3 insertions(+), 5 deletions(-)