PCI: imx6: Disable i.MX6QDL clock when disabling ref clocks

When disabling PCIe clocks, disable i.MX6QDL ref clock too.

Link: https://lore.kernel.org/r/1657783869-19194-9-git-send-email-hongxing.zhu@nxp.com
Signed-off-by: Richard Zhu <hongxing.zhu@nxp.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Lucas Stach <l.stach@pengutronix.de>

diff --git a/drivers/pci/controller/dwc/pci-imx6.c b/drivers/pci/controller/dwc/pci-imx6.c
index 5155151453069e7b0d74c90f401874368091520c..f2157533442ff97ca7c26c90cd773b84c1e1a781 100644 (file)
--- a/drivers/pci/controller/dwc/pci-imx6.c
+++ b/drivers/pci/controller/dwc/pci-imx6.c
@@ -586,6 +586,14 @@ static void imx6_pcie_disable_ref_clk(struct imx6_pcie *imx6_pcie)
        case IMX6SX:
                clk_disable_unprepare(imx6_pcie->pcie_inbound_axi);
                break;
+       case IMX6QP:
+       case IMX6Q:
+               regmap_update_bits(imx6_pcie->iomuxc_gpr, IOMUXC_GPR1,
+                               IMX6Q_GPR1_PCIE_REF_CLK_EN, 0);
+               regmap_update_bits(imx6_pcie->iomuxc_gpr, IOMUXC_GPR1,
+                               IMX6Q_GPR1_PCIE_TEST_PD,
+                               IMX6Q_GPR1_PCIE_TEST_PD);
+               break;
        case IMX7D:
                regmap_update_bits(imx6_pcie->iomuxc_gpr, IOMUXC_GPR12,
                                   IMX7D_GPR12_PCIE_PHY_REFCLK_SEL,