[PATCH v14 15/17] PCI: imx6: Disable clocks in reverse order of enable
Lucas Stach
l.stach at pengutronix.de
Wed Jul 13 01:59:27 PDT 2022
Am Freitag, dem 01.07.2022 um 11:25 +0800 schrieb Richard Zhu:
> From: Bjorn Helgaas <bhelgaas at google.com>
>
> imx6_pcie_clk_enable() enables clocks in the order:
>
> pcie_phy
> pcie_bus
> pcie
> imx6_pcie_enable_ref_clk
>
> Change imx6_pcie_clk_disable() to disable them in the reverse order.
>
> Signed-off-by: Bjorn Helgaas <bhelgaas at google.com>
> Acked-by: Richard Zhu <hongxing.zhu at nxp.com>
Reviewed-by: Lucas Stach <l.stach at pengutronix.de>
> ---
> drivers/pci/controller/dwc/pci-imx6.c | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/pci/controller/dwc/pci-imx6.c b/drivers/pci/controller/dwc/pci-imx6.c
> index 0b2a5256fb0d..79a05e190016 100644
> --- a/drivers/pci/controller/dwc/pci-imx6.c
> +++ b/drivers/pci/controller/dwc/pci-imx6.c
> @@ -655,10 +655,10 @@ static int imx6_pcie_clk_enable(struct imx6_pcie *imx6_pcie)
>
> static void imx6_pcie_clk_disable(struct imx6_pcie *imx6_pcie)
> {
> + imx6_pcie_disable_ref_clk(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);
> + clk_disable_unprepare(imx6_pcie->pcie_phy);
> }
>
> static void imx6_pcie_assert_core_reset(struct imx6_pcie *imx6_pcie)
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