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| author | Dmitry Osipenko <digetx@gmail.com> | 2020-12-18 15:02:43 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-01-13 13:26:34 +0300 |
| commit | a728f91bcc70dc9c7f50ac25a37806c0bbb7108b (patch) | |
| tree | b013147b9fe08a63788bb4728705344b18f14deb /drivers/usb/chipidea | |
| parent | fc53d5279094e38e6363506339772a7021da2df8 (diff) | |
| download | linux-a728f91bcc70dc9c7f50ac25a37806c0bbb7108b.tar.xz | |
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: Matt Merhar <mattmerhar@protonmail.com>
Tested-by: Nicolas Chauvet <kwizart@gmail.com>
Tested-by: Peter Geis <pgwipeout@gmail.com>
Tested-by: Ion Agorria <ion@agorria.com>
Acked-by: Peter Chen <peter.chen@kernel.org>
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Link: https://lore.kernel.org/r/20201218120246.7759-7-digetx@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/chipidea')
| -rw-r--r-- | drivers/usb/chipidea/ci_hdrc_tegra.c | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/drivers/usb/chipidea/ci_hdrc_tegra.c b/drivers/usb/chipidea/ci_hdrc_tegra.c index 5fccdeeefc64..655671159511 100644 --- a/drivers/usb/chipidea/ci_hdrc_tegra.c +++ b/drivers/usb/chipidea/ci_hdrc_tegra.c @@ -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)) { |