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| author |  Richard Zhu <hongxing.zhu@nxp.com>
| 2022-07-14 15:31:00 +0800 |
|---|---|---|
| committer |  Bjorn Helgaas <bhelgaas@google.com>
| 2022-08-01 15:33:35 -0500 |
| commit | fea446eb9c77209dcd056fbd86c269a390075a29 (patch) | |
| tree | ea8318728a55226a3b3cd17e6023b7c7428d3748 /drivers/pci/controller | |
| parent | PCI: imx6: Propagate .host_init() errors to caller (diff) | |
| download | linux-fea446eb9c77209dcd056fbd86c269a390075a29.tar.gz linux-fea446eb9c77209dcd056fbd86c269a390075a29.tar.bz2 linux-fea446eb9c77209dcd056fbd86c269a390075a29.zip | |
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>
Diffstat (limited to 'drivers/pci/controller')
| -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 515515145306..f2157533442f 100644 --- 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, |