Commit a6fbb4a4 authored by Thierry Reding's avatar Thierry Reding Committed by Lorenzo Pieralisi
Browse files

PCI: tegra: Remove PLL power supplies 

The Tegra PCI controller driver doesn't need to control the PLL power
supplies directly, but rather uses the pads provided by the XUSB pad
controller, which in turn is responsible for supplying power to the
PLLs.

Link: https://lore.kernel.org/r/20200623145528.1658337-2-thierry.reding@gmail.com


Signed-off-by: default avatarThierry Reding <treding@nvidia.com>
Signed-off-by: default avatarLorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Reviewed-by: default avatarRob Herring <robh@kernel.org>
parent 980d1f2f

drivers/pci/controller/pci-tegra.c

+2 −8
Original line number Diff line number Diff line
@@ -2000,7 +2000,7 @@ static int tegra_pcie_get_regulators(struct tegra_pcie *pcie, u32 lane_mask) 
		pcie->supplies[i++].supply = "hvdd-pex";

		pcie->supplies[i++].supply = "vddio-pexctl-aud";

	} else if (of_device_is_compatible(np, "nvidia,tegra210-pcie")) {

		pcie->num_supplies = 6;

		pcie->num_supplies = 3;



		pcie->supplies = devm_kcalloc(pcie->dev, pcie->num_supplies,

					      sizeof(*pcie->supplies),
@@ -2008,14 +2008,11 @@ static int tegra_pcie_get_regulators(struct tegra_pcie *pcie, u32 lane_mask) 
		if (!pcie->supplies)

			return -ENOMEM;



		pcie->supplies[i++].supply = "avdd-pll-uerefe";

		pcie->supplies[i++].supply = "hvddio-pex";

		pcie->supplies[i++].supply = "dvddio-pex";

		pcie->supplies[i++].supply = "dvdd-pex-pll";

		pcie->supplies[i++].supply = "hvdd-pex-pll-e";

		pcie->supplies[i++].supply = "vddio-pex-ctl";

	} else if (of_device_is_compatible(np, "nvidia,tegra124-pcie")) {

		pcie->num_supplies = 7;

		pcie->num_supplies = 4;



		pcie->supplies = devm_kcalloc(dev, pcie->num_supplies,

					      sizeof(*pcie->supplies),
@@ -2025,11 +2022,8 @@ static int tegra_pcie_get_regulators(struct tegra_pcie *pcie, u32 lane_mask) 


		pcie->supplies[i++].supply = "avddio-pex";

		pcie->supplies[i++].supply = "dvddio-pex";

		pcie->supplies[i++].supply = "avdd-pex-pll";

		pcie->supplies[i++].supply = "hvdd-pex";

		pcie->supplies[i++].supply = "hvdd-pex-pll-e";

		pcie->supplies[i++].supply = "vddio-pex-ctl";

		pcie->supplies[i++].supply = "avdd-pll-erefe";

	} else if (of_device_is_compatible(np, "nvidia,tegra30-pcie")) {

		bool need_pexa = false, need_pexb = false;

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