diff options
Diffstat (limited to 'drivers/pci/controller/dwc/pci-imx6.c')
| -rw-r--r-- | drivers/pci/controller/dwc/pci-imx6.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/pci/controller/dwc/pci-imx6.c b/drivers/pci/controller/dwc/pci-imx6.c index 059ad3ea9b98..0b3a65b8a798 100644 --- a/drivers/pci/controller/dwc/pci-imx6.c +++ b/drivers/pci/controller/dwc/pci-imx6.c @@ -2446,6 +2446,10 @@ static int imx6_pcie_probe(struct platform_device *pdev) imx6_pcie->ext_osc = 0; if (of_property_read_u32(node, "local-addr", &imx6_pcie->local_addr)) imx6_pcie->local_addr = 0; + if (of_property_read_bool(node, "l1ss-disabled")) + imx6_pcie->l1ss_clkreq = 0; + else + imx6_pcie->l1ss_clkreq = 1; /* Fetch GPIOs */ imx6_pcie->clkreq_gpio = of_get_named_gpio(node, "clkreq-gpio", 0); @@ -2932,6 +2936,10 @@ static void imx6_pcie_l1ss_quirk(struct pci_dev *dev) if (!(imx6_pcie->drvdata->flags & IMX6_PCIE_FLAG_SUPPORTS_L1SS)) return; + /* Make sure the L1SS is not force disabled. */ + if (imx6_pcie->l1ss_clkreq == 0) + return; + reg = dw_pcie_find_ext_capability(pci, PCI_EXT_CAP_ID_L1SS); rc_l1sub = dw_pcie_readl_dbi(pci, reg + PCI_L1SS_CAP); |