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https://gitee.com/bianbu-linux/linux-6.6
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c545a90567
This commit adds sleepwalk/wake and suspend/resume interfaces to Tegra XUSB PHY driver. Tegra XUSB host controller driver makes use of sleepwalk functions to enable/disable sleepwalk circuit which is in always-on partition and can respond to USB resume signals when controller is not powered. Sleepwalk can be enabled/disabled for any USB UPHY individually. - tegra_xusb_padctl_enable_phy_sleepwalk() - tegra_xusb_padctl_disable_phy_sleepwalk() Tegra XUSB host controller driver makes use of wake functions to enable/disable/query wake circuit which is in always-on partition can wake system up when USB resume happens. Wake circuit can be enabled/disabled for any USB PHY individually. - tegra_xusb_padctl_enable_phy_wake() - tegra_xusb_padctl_disable_phy_wake() - tegra_xusb_padctl_remote_wake_detected() This commit also adds two system suspend stubs that can be used to save and restore XUSB PADCTL context during system suspend and resume. - tegra_xusb_padctl_suspend_noirq() - tegra_xusb_padctl_resume_noirq() Signed-off-by: JC Kuo <jckuo@nvidia.com> Acked-By: Vinod Koul <vkoul@kernel.org> Signed-off-by: Thierry Reding <treding@nvidia.com>
34 lines
1.4 KiB
C
34 lines
1.4 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* Copyright (c) 2016-2020, NVIDIA CORPORATION. All rights reserved.
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*/
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#ifndef PHY_TEGRA_XUSB_H
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#define PHY_TEGRA_XUSB_H
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struct tegra_xusb_padctl;
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struct device;
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enum usb_device_speed;
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struct tegra_xusb_padctl *tegra_xusb_padctl_get(struct device *dev);
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void tegra_xusb_padctl_put(struct tegra_xusb_padctl *padctl);
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int tegra_xusb_padctl_usb3_save_context(struct tegra_xusb_padctl *padctl,
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unsigned int port);
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int tegra_xusb_padctl_hsic_set_idle(struct tegra_xusb_padctl *padctl,
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unsigned int port, bool idle);
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int tegra_xusb_padctl_usb3_set_lfps_detect(struct tegra_xusb_padctl *padctl,
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unsigned int port, bool enable);
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int tegra_xusb_padctl_set_vbus_override(struct tegra_xusb_padctl *padctl,
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bool val);
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int tegra_phy_xusb_utmi_port_reset(struct phy *phy);
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int tegra_xusb_padctl_get_usb3_companion(struct tegra_xusb_padctl *padctl,
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unsigned int port);
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int tegra_xusb_padctl_enable_phy_sleepwalk(struct tegra_xusb_padctl *padctl, struct phy *phy,
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enum usb_device_speed speed);
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int tegra_xusb_padctl_disable_phy_sleepwalk(struct tegra_xusb_padctl *padctl, struct phy *phy);
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int tegra_xusb_padctl_enable_phy_wake(struct tegra_xusb_padctl *padctl, struct phy *phy);
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int tegra_xusb_padctl_disable_phy_wake(struct tegra_xusb_padctl *padctl, struct phy *phy);
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bool tegra_xusb_padctl_remote_wake_detected(struct tegra_xusb_padctl *padctl, struct phy *phy);
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#endif /* PHY_TEGRA_XUSB_H */
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