[PATCH v1 2/3] PCI: imx6: move the wait for clock stabilization to enable ref clk

Stefan Eichenberger
2024-08-19T09:06:47Z

From: Stefan Eichenberger <stefan.eichenberger@toradex.com>

After enabling the ref clock, we should wait for the clock to stabilize.
To eliminate the need for code duplication in the future, move the
usleep to the enable_ref_clk function.

Signed-off-by: Stefan Eichenberger <stefan.eichenberger@toradex.com>
---
drivers/pci/controller/dwc/pci-imx6.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/pci/controller/dwc/pci-imx6.c b/drivers/pci/controller/dwc/pci-imx6.c
index fda704d82431f..f17561791e35a 100644
--- a/drivers/pci/controller/dwc/pci-imx6.c
+++ b/drivers/pci/controller/dwc/pci-imx6.c
@@ -632,6 +632,9 @@ static int imx6_pcie_enable_ref_clk(struct imx6_pcie *imx6_pcie)
break;
}

+ /* allow the clocks to stabilize */
+ usleep_range(200, 500);
+
return ret;
}

@@ -672,8 +675,6 @@ static int imx6_pcie_clk_enable(struct imx6_pcie *imx6_pcie)
goto err_ref_clk;
}

- /* allow the clocks to stabilize */
- usleep_range(200, 500);
return 0;

err_ref_clk:
--
2.43.0