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Merge "msm: pcie: add logs for link bandwidth switching"

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qctecmdr 2020-03-14 15:40:37 -07:00 • committed by Gerrit - the friendly Code Review server
commit e9c4f4cb2a
1 changed files with 13 additions and 0 deletions
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13
drivers/pci/controller/pci-msm.c
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@ -6171,9 +6171,19 @@ int msm_pcie_set_link_bandwidth(struct pci_dev *pci_dev, u16 target_link_speed,
if (target_link_speed == current_link_speed)
set_link_speed = false;
else
PCIE_DBG(pcie_dev,
"PCIe: RC%d: switching from Gen%d to Gen%d\n",
pcie_dev->rc_idx, current_link_speed,
target_link_speed);
if (target_link_width == current_link_width)
set_link_width = false;
else
PCIE_DBG(pcie_dev,
"PCIe: RC%d: switching from x%d to x%d\n",
pcie_dev->rc_idx, current_link_width,
target_link_width);
if (!set_link_speed && !set_link_width)
return 0;
@ -6216,6 +6226,9 @@ int msm_pcie_set_link_bandwidth(struct pci_dev *pci_dev, u16 target_link_speed,
if (target_link_speed < current_link_speed)
msm_pcie_scale_link_bandwidth(pcie_dev, target_link_speed);
PCIE_DBG(pcie_dev, "PCIe: RC%d: successfully switched link bandwidth\n",
pcie_dev->rc_idx);
out:
msm_pcie_allow_l1(root_pci_dev);