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| author |   Manikanta Maddireddy <mmaddireddy@nvidia.com> | 2019-06-18 23:32:02 +0530 |
|---|---|---|
| committer |   Thierry Reding <treding@nvidia.com> | 2019-06-21 16:04:52 +0200 |
| commit | 871be845dfee0a29572ae360c48f8fe20a81a126 (patch) | |
| tree | 6eac85b60faeedd6f119179011a57154536b3d8f /arch/arm64/boot/dts/nvidia/tegra210.dtsi | |
| parent | arm64: tegra: Enable ACONNECT, ADMA and AGIC (diff) | |
| download | linux-dev-871be845dfee0a29572ae360c48f8fe20a81a126.tar.xz linux-dev-871be845dfee0a29572ae360c48f8fe20a81a126.zip | |
arm64: tegra: Add PEX DPD states as pinctrl properties
Add PEX deep power down states as pinctrl properties to set in PCIe driver.
In Tegra210, BIAS pads are not in power down mode when clamps are applied.
To set the pads in DPD, pass the PEX DPD states as pinctrl properties to
PCIe driver.
Signed-off-by: Manikanta Maddireddy <mmaddireddy@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Diffstat (limited to 'arch/arm64/boot/dts/nvidia/tegra210.dtsi')
| -rw-r--r-- | arch/arm64/boot/dts/nvidia/tegra210.dtsi | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/arch/arm64/boot/dts/nvidia/tegra210.dtsi b/arch/arm64/boot/dts/nvidia/tegra210.dtsi index ec762b3455b4..659753118e96 100644 --- a/arch/arm64/boot/dts/nvidia/tegra210.dtsi +++ b/arch/arm64/boot/dts/nvidia/tegra210.dtsi @@ -48,6 +48,11 @@ <&tegra_car 72>, <&tegra_car 74>; reset-names = "pex", "afi", "pcie_x"; + + pinctrl-names = "default", "idle"; + pinctrl-0 = <&pex_dpd_disable>; + pinctrl-1 = <&pex_dpd_enable>; + status = "disabled"; pci@1,0 { @@ -848,6 +853,20 @@ pins = "sdmmc3"; power-source = <TEGRA_IO_PAD_VOLTAGE_1V8>; }; + + pex_dpd_disable: pex_en { + pex-dpd-disable { + pins = "pex-bias", "pex-clk1", "pex-clk2"; + low-power-disable; + }; + }; + + pex_dpd_enable: pex_dis { + pex-dpd-enable { + pins = "pex-bias", "pex-clk1", "pex-clk2"; + low-power-enable; + }; + }; }; fuse@7000f800 { |