On Tue, Jan 19, 2021 at 04:55:38PM +0800, JC Kuo wrote: > 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@xxxxxxxxxx> > --- > v6: > no change > v5: > no change > v4: > move sleepwalk/wake stubs from 'struct tegra_xusb_padctl_ops' to > 'struct tegra_xusb_lane_ops' > v3: > commit message improvement, no change in code > > drivers/phy/tegra/xusb.c | 82 ++++++++++++++++++++++++++++++++++ > drivers/phy/tegra/xusb.h | 8 ++++ > include/linux/phy/tegra/xusb.h | 10 ++++- > 3 files changed, 99 insertions(+), 1 deletion(-) Acked-by: Thierry Reding <treding@xxxxxxxxxx>
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