evie/android_kernel_oneplus_msm8998
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msm: pcie: switch GPIO to sleep state before asserting PERST

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Before asserting PERST, PCIe bus driver should switch GPIO to
sleep state. This will prevent host from missing any events after
the link is off.

Change-Id: Ie57d339da02dde6cbb3c41d2be52ee0602227193
Signed-off-by: Tony Truong <truong@codeaurora.org>
This commit is contained in:
Tony Truong 2017-04-28 18:17:04 -07:00
parent 2d6bacdbca
commit 4501fe2b46
1 changed files with 2 additions and 2 deletions
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4
drivers/pci/host/pci-msm.c
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@ -6742,12 +6742,12 @@ static int msm_pcie_pm_suspend(struct pci_dev *dev,
PCIE_DBG(pcie_dev, "RC%d: PM_Enter_L23 is NOT received\n",
pcie_dev->rc_idx);
msm_pcie_disable(pcie_dev, PM_PIPE_CLK | PM_CLK | PM_VREG);
if (pcie_dev->use_pinctrl && pcie_dev->pins_sleep)
pinctrl_select_state(pcie_dev->pinctrl,
pcie_dev->pins_sleep);
msm_pcie_disable(pcie_dev, PM_PIPE_CLK | PM_CLK | PM_VREG);
PCIE_DBG(pcie_dev, "RC%d: exit\n", pcie_dev->rc_idx);
return ret;