From 4501fe2b46c34001185d90abffa5de7cb784580b Mon Sep 17 00:00:00 2001 From: Tony Truong Date: Fri, 28 Apr 2017 18:17:04 -0700 Subject: [PATCH] msm: pcie: switch GPIO to sleep state before asserting PERST 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 --- drivers/pci/host/pci-msm.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/pci/host/pci-msm.c b/drivers/pci/host/pci-msm.c index 9dc678ce4a48..93caf755ee16 100644 --- a/drivers/pci/host/pci-msm.c +++ b/drivers/pci/host/pci-msm.c @@ -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;