Commit a728f91b authored by Dmitry Osipenko's avatar Dmitry Osipenko Committed by Greg Kroah-Hartman
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usb: chipidea: tegra: Support runtime PM 



Tegra PHY driver now supports waking up controller from a low power mode.
Enable runtime PM in order to put controller into the LPM during idle.

Tested-by: default avatarMatt Merhar <mattmerhar@protonmail.com>
Tested-by: default avatarNicolas Chauvet <kwizart@gmail.com>
Tested-by: default avatarPeter Geis <pgwipeout@gmail.com>
Tested-by: default avatarIon Agorria <ion@agorria.com>
Acked-by: default avatarPeter Chen <peter.chen@kernel.org>
Signed-off-by: default avatarDmitry Osipenko <digetx@gmail.com>
Link: https://lore.kernel.org/r/20201218120246.7759-7-digetx@gmail.com


Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent fc53d527

drivers/usb/chipidea/ci_hdrc_tegra.c

+10 −3
Original line number Diff line number Diff line
@@ -38,21 +38,24 @@ struct tegra_usb_soc_info { 


static const struct tegra_usb_soc_info tegra20_ehci_soc_info = {

	.flags = CI_HDRC_REQUIRES_ALIGNED_DMA |

		 CI_HDRC_OVERRIDE_PHY_CONTROL,

		 CI_HDRC_OVERRIDE_PHY_CONTROL |

		 CI_HDRC_SUPPORTS_RUNTIME_PM,

	.dr_mode = USB_DR_MODE_HOST,

	.txfifothresh = 10,

};



static const struct tegra_usb_soc_info tegra30_ehci_soc_info = {

	.flags = CI_HDRC_REQUIRES_ALIGNED_DMA |

		 CI_HDRC_OVERRIDE_PHY_CONTROL,

		 CI_HDRC_OVERRIDE_PHY_CONTROL |

		 CI_HDRC_SUPPORTS_RUNTIME_PM,

	.dr_mode = USB_DR_MODE_HOST,

	.txfifothresh = 16,

};



static const struct tegra_usb_soc_info tegra_udc_soc_info = {

	.flags = CI_HDRC_REQUIRES_ALIGNED_DMA |

		 CI_HDRC_OVERRIDE_PHY_CONTROL,

		 CI_HDRC_OVERRIDE_PHY_CONTROL |

		 CI_HDRC_SUPPORTS_RUNTIME_PM,

	.dr_mode = USB_DR_MODE_UNKNOWN,

};
@@ -323,6 +326,10 @@ static int tegra_usb_probe(struct platform_device *pdev) 
	usb->data.hub_control = tegra_ehci_hub_control;

	usb->data.notify_event = tegra_usb_notify_event;



	/* Tegra PHY driver currently doesn't support LPM for ULPI */

	if (of_usb_get_phy_mode(pdev->dev.of_node) == USBPHY_INTERFACE_MODE_ULPI)

		usb->data.flags &= ~CI_HDRC_SUPPORTS_RUNTIME_PM;



	usb->dev = ci_hdrc_add_device(&pdev->dev, pdev->resource,

				      pdev->num_resources, &usb->data);

	if (IS_ERR(usb->dev)) {