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| author |  Bjorn Helgaas <bhelgaas@google.com>
| 2022-07-14 15:30:57 +0800 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com>
| 2022-08-01 15:33:24 -0500 |
| commit | d0a75c791f981546618c917293bc20094a923410 (patch) | |
| tree | 723ea21a5baa5f06415b336d5dd96567207afb43 /drivers/pci/controller | |
| parent | PCI: imx6: Move imx6_pcie_clk_disable() earlier (diff) | |
| download | linux-d0a75c791f981546618c917293bc20094a923410.tar.gz linux-d0a75c791f981546618c917293bc20094a923410.tar.bz2 linux-d0a75c791f981546618c917293bc20094a923410.zip | |
PCI: imx6: Factor out ref clock disable to match enable
The PCIe ref clocks are specific to different variants. The enables are
already split out into imx6_pcie_enable_ref_clk(), but the disables were
combined with the more generic bus/phy/pcie clock disables in
imx6_pcie_clk_disable().
Split out the variant-specific disables into imx6_pcie_disable_ref_clk() to
match imx6_pcie_enable_ref_clk().
No functional change intended.
Link: https://lore.kernel.org/r/1657783869-19194-6-git-send-email-hongxing.zhu@nxp.com
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Lucas Stach <l.stach@pengutronix.de>
Acked-by: Richard Zhu <hongxing.zhu@nxp.com>
Diffstat (limited to 'drivers/pci/controller')
| -rw-r--r-- | drivers/pci/controller/dwc/pci-imx6.c | 16 |
1 files changed, 10 insertions, 6 deletions
diff --git a/drivers/pci/controller/dwc/pci-imx6.c b/drivers/pci/controller/dwc/pci-imx6.c index 09cf496b9a2a..848c8eef949a 100644 --- a/drivers/pci/controller/dwc/pci-imx6.c +++ b/drivers/pci/controller/dwc/pci-imx6.c @@ -580,12 +580,8 @@ static int imx6_pcie_enable_ref_clk(struct imx6_pcie *imx6_pcie) return ret; } -static void imx6_pcie_clk_disable(struct imx6_pcie *imx6_pcie) +static void imx6_pcie_disable_ref_clk(struct imx6_pcie *imx6_pcie) { - clk_disable_unprepare(imx6_pcie->pcie); - clk_disable_unprepare(imx6_pcie->pcie_phy); - clk_disable_unprepare(imx6_pcie->pcie_bus); - switch (imx6_pcie->drvdata->variant) { case IMX6SX: clk_disable_unprepare(imx6_pcie->pcie_inbound_axi); @@ -595,8 +591,8 @@ static void imx6_pcie_clk_disable(struct imx6_pcie *imx6_pcie) IMX7D_GPR12_PCIE_PHY_REFCLK_SEL, IMX7D_GPR12_PCIE_PHY_REFCLK_SEL); break; - case IMX8MQ: case IMX8MM: + case IMX8MQ: clk_disable_unprepare(imx6_pcie->pcie_aux); break; default: @@ -604,6 +600,14 @@ static void imx6_pcie_clk_disable(struct imx6_pcie *imx6_pcie) } } +static void imx6_pcie_clk_disable(struct imx6_pcie *imx6_pcie) +{ + clk_disable_unprepare(imx6_pcie->pcie); + clk_disable_unprepare(imx6_pcie->pcie_phy); + clk_disable_unprepare(imx6_pcie->pcie_bus); + imx6_pcie_disable_ref_clk(imx6_pcie); +} + static void imx6_pcie_assert_core_reset(struct imx6_pcie *imx6_pcie) { struct device *dev = imx6_pcie->pci->dev; |