PCI: tegra: Fix CLKREQ dependency programming

Corrects the programming to provide REFCLK to the downstream device
when there is no CLKREQ sideband signal routing present from root port
to the endpont.

Signed-off-by: Vidya Sagar <[email protected]>
Signed-off-by: Lorenzo Pieralisi <[email protected]>
Acked-by: Thierry Reding <[email protected]>

Author: Vidya Sagar

drivers/pci/controller/dwc/pcie-tegra194.c

@@ -40,8 +40,6 @@
 #define APPL_PINMUX_CLKREQ_OVERRIDE		BIT(3)
 #define APPL_PINMUX_CLK_OUTPUT_IN_OVERRIDE_EN	BIT(4)
 #define APPL_PINMUX_CLK_OUTPUT_IN_OVERRIDE	BIT(5)
-#define APPL_PINMUX_CLKREQ_OUT_OVRD_EN		BIT(9)
-#define APPL_PINMUX_CLKREQ_OUT_OVRD		BIT(10)
 
 #define APPL_CTRL				0x4
 #define APPL_CTRL_SYS_PRE_DET_STATE		BIT(6)
@@ -1193,8 +1191,8 @@ static int tegra_pcie_config_controller(struct tegra_pcie_dw *pcie,
 
 	if (!pcie->supports_clkreq) {
 		val = appl_readl(pcie, APPL_PINMUX);
-		val |= APPL_PINMUX_CLKREQ_OUT_OVRD_EN;
-		val |= APPL_PINMUX_CLKREQ_OUT_OVRD;
+		val |= APPL_PINMUX_CLKREQ_OVERRIDE_EN;
+		val &= ~APPL_PINMUX_CLKREQ_OVERRIDE;
 		appl_writel(pcie, val, APPL_PINMUX);
 	}