diff mbox series

[v4,06/11] PCI/ASPM: Clear aspm_disable as part of __pci_enable_link_state()

Message ID 20250609-mhi_bw_up-v4-6-3faa8fe92b05@qti.qualcomm.com
State New
Headers show
Series bus: mhi: host: Add support for mhi bus bw | expand

Commit Message

Krishna Chaitanya Chundru June 9, 2025, 10:51 a.m. UTC 
ASPM states are not being enabled back with pci_enable_link_state() when
they are disabled by pci_disable_link_state(). This is because of the
aspm_disable flag is not getting cleared in pci_enable_link_state(), this
flag is being properly cleared when ASPM is controlled by sysfs.

Clear the aspm_disable flag with the requested ASPM states requested by
pci_enable_link_state().

Signed-off-by: Krishna Chaitanya Chundru <krishna.chundru@oss.qualcomm.com>
---
 drivers/pci/pcie/aspm.c | 1 +
 1 file changed, 1 insertion(+)
diff mbox series

Patch

diff --git a/drivers/pci/pcie/aspm.c b/drivers/pci/pcie/aspm.c
index 94324fc0d3e650cd3ca2c0bb8c1895ca7e647b9d..0f858ef86111b43328bc7db01e6493ce67178458 100644
--- a/drivers/pci/pcie/aspm.c
+++ b/drivers/pci/pcie/aspm.c
@@ -1453,6 +1453,7 @@  static int __pci_enable_link_state(struct pci_dev *pdev, int state, bool locked)
 		down_read(&pci_bus_sem);
 	mutex_lock(&aspm_lock);
 	link->aspm_default = pci_calc_aspm_enable_mask(state);
+	link->aspm_disable &= ~state;
 	pcie_config_aspm_link(link, policy_to_aspm_state(link));
 
 	link->clkpm_default = (state & PCIE_LINK_STATE_CLKPM) ? 1 : 0;