From: Thierry Reding <thierry.reding@gmail.com>
To: Dmitry Osipenko <digetx@gmail.com>
Cc: Jonathan Hunter <jonathanh@nvidia.com>,
Peter Chen <Peter.Chen@nxp.com>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Alan Stern <stern@rowland.harvard.edu>,
Felipe Balbi <balbi@kernel.org>,
Matt Merhar <mattmerhar@protonmail.com>,
Nicolas Chauvet <kwizart@gmail.com>,
Peter Geis <pgwipeout@gmail.com>, Ion Agorria <ion@agorria.com>,
linux-tegra@vger.kernel.org, linux-usb@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH v2 6/8] usb: chipidea: tegra: Support runtime PM
Date: Thu, 17 Dec 2020 14:41:35 +0100 [thread overview]
Message-ID: <X9tgD+KSU1bIvht5@ulmo> (raw)
In-Reply-To: <20201217094007.19336-7-digetx@gmail.com>
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On Thu, Dec 17, 2020 at 12:40:05PM +0300, Dmitry Osipenko wrote:
> 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>
> Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
> ---
> drivers/usb/chipidea/ci_hdrc_tegra.c | 13 ++++++++++---
> 1 file 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;
> +
Does this prevent the wakeup_enabled from being set for ULPI PHYs?
Thierry
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next prev parent reply other threads:[~2020-12-17 13:42 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-12-17 9:39 [PATCH v2 0/8] Support Runtime PM and host mode by Tegra ChipIdea USB driver Dmitry Osipenko
2020-12-17 9:40 ` [PATCH v2 1/8] usb: phy: tegra: Add delay after power up Dmitry Osipenko
2020-12-17 13:25 ` Thierry Reding
2020-12-17 9:40 ` [PATCH v2 2/8] usb: phy: tegra: Support waking up from a low power mode Dmitry Osipenko
2020-12-17 13:33 ` Thierry Reding
2020-12-17 13:47 ` Dmitry Osipenko
2020-12-17 15:04 ` Thierry Reding
2020-12-17 9:40 ` [PATCH v2 3/8] usb: chipidea: tegra: Remove MODULE_ALIAS Dmitry Osipenko
2020-12-17 9:40 ` [PATCH v2 4/8] usb: chipidea: tegra: Rename UDC to USB Dmitry Osipenko
2020-12-17 13:36 ` Thierry Reding
2020-12-17 14:00 ` Dmitry Osipenko
2020-12-17 9:40 ` [PATCH v2 5/8] usb: chipidea: tegra: Support host mode Dmitry Osipenko
2020-12-17 13:40 ` Thierry Reding
2020-12-17 9:40 ` [PATCH v2 6/8] usb: chipidea: tegra: Support runtime PM Dmitry Osipenko
2020-12-17 13:41 ` Thierry Reding [this message]
2020-12-17 13:45 ` Dmitry Osipenko
2020-12-17 15:02 ` Thierry Reding
2020-12-17 19:51 ` Dmitry Osipenko
2020-12-17 15:02 ` Thierry Reding
2020-12-17 9:40 ` [PATCH v2 7/8] usb: host: ehci-tegra: Remove the driver Dmitry Osipenko
2020-12-17 13:42 ` Thierry Reding
2020-12-17 15:50 ` Alan Stern
2020-12-17 19:43 ` Dmitry Osipenko
2020-12-17 9:40 ` [PATCH v2 8/8] ARM: tegra_defconfig: Enable USB_CHIPIDEA and remove USB_EHCI_TEGRA Dmitry Osipenko
2020-12-17 13:45 ` Thierry Reding
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