[PATCH v1] PCI: imx6: Fix reference clock source selection

[Franz Schnyder <fra.schnyder@gmail.com>]

From: Franz Schnyder <franz.schnyder@toradex.com>

In the PCIe PHY init for the iMX95, the reference clock source selection
uses a conditional instead of always passing the mask. This currently
breaks functionality if the internal refclk is used.

Pass always IMX95_PCIE_REF_USE_PAD as the mask and clear the bit if
external refclk is not used.

Fixes: d8574ce57d76 ("PCI: imx6: Add external reference clock input mode support")
Cc: stable@vger.kernel.org
Signed-off-by: Franz Schnyder <franz.schnyder@toradex.com>
---
 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 81a7093494c8..e0580d6efa57 100644
--- a/drivers/pci/controller/dwc/pci-imx6.c
+++ b/drivers/pci/controller/dwc/pci-imx6.c
@@ -268,8 +268,8 @@ static int imx95_pcie_init_phy(struct imx_pcie *imx_pcie)
 			IMX95_PCIE_PHY_CR_PARA_SEL);
 
 	regmap_update_bits(imx_pcie->iomuxc_gpr, IMX95_PCIE_PHY_GEN_CTRL,
-			   ext ? IMX95_PCIE_REF_USE_PAD : 0,
-			   IMX95_PCIE_REF_USE_PAD);
+			   IMX95_PCIE_REF_USE_PAD,
+			   ext ? IMX95_PCIE_REF_USE_PAD : 0);
 	regmap_update_bits(imx_pcie->iomuxc_gpr, IMX95_PCIE_SS_RW_REG_0,
 			   IMX95_PCIE_REF_CLKEN,
 			   ext ? 0 : IMX95_PCIE_REF_CLKEN);
-- 
2.43.0