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Commit ad44b2b2 authored by Tony Truong's avatar Tony Truong Committed by Gerrit - the friendly Code Review server
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msm: pcie: add logs for link bandwidth switching 



Add logs to capture current and target link bandwidth settings.

Change-Id: Ifdb255719f8263fb501eef2449ad84332e34d0c8
Signed-off-by: default avatarTony Truong <truong@codeaurora.org>
parent 58f639fb

drivers/pci/controller/pci-msm.c

+13 −0
Original line number Diff line number Diff line
@@ -6225,9 +6225,19 @@ 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;
@@ -6270,6 +6280,9 @@ 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);