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[V1,9/9] PCI: tegra194: Calibrate P2U for endpoint mode

Message ID 20220919143627.13803-10-vidyas@nvidia.com (mailing list archive)
State Superseded
Delegated to: Lorenzo Pieralisi
Headers show
Series Enhancements to pcie-tegra194 driver | expand

Commit Message

Vidya Sagar Sept. 19, 2022, 2:36 p.m. UTC 
Calibrate P2U for endpoint to request UPHY PLL rate change to Gen1 during
initialization.

Signed-off-by: Vidya Sagar <vidyas@nvidia.com>
---
 drivers/pci/controller/dwc/pcie-tegra194.c | 3 +++
 1 file changed, 3 insertions(+)
diff mbox series

Patch

diff --git a/drivers/pci/controller/dwc/pcie-tegra194.c b/drivers/pci/controller/dwc/pcie-tegra194.c
index 35d9c3ac3028..67dd97f3cd6e 100644
--- a/drivers/pci/controller/dwc/pcie-tegra194.c
+++ b/drivers/pci/controller/dwc/pcie-tegra194.c
@@ -1078,6 +1078,9 @@  static int tegra_pcie_enable_phy(struct tegra_pcie_dw *pcie)
 		ret = phy_power_on(pcie->phys[i]);
 		if (ret < 0)
 			goto phy_exit;
+
+		if (pcie->of_data->mode == DW_PCIE_EP_TYPE)
+			phy_calibrate(pcie->phys[i]);
 	}
 
 	return 0;