From: Thierry Reding <thierry.reding@gmail.com>
To: JC Kuo <jckuo@nvidia.com>
Cc: gregkh@linuxfoundation.org, robh@kernel.org,
jonathanh@nvidia.com, kishon@ti.com, linux-tegra@vger.kernel.org,
linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org,
devicetree@vger.kernel.org, nkristam@nvidia.com
Subject: Re: [PATCH v6 07/15] phy: tegra: xusb: Add sleepwalk and suspend/resume
Date: Tue, 19 Jan 2021 14:54:58 +0100 [thread overview]
Message-ID: <YAbksocGBUShr1lP@ulmo> (raw)
In-Reply-To: <20210119085546.725005-8-jckuo@nvidia.com>
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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@nvidia.com>
> ---
> 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@nvidia.com>
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next prev parent reply other threads:[~2021-01-19 23:58 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-01-19 8:55 [PATCH v6 00/15] Tegra XHCI controller ELPG support JC Kuo
2021-01-19 8:55 ` [PATCH v6 01/15] clk: tegra: Add PLLE HW power sequencer control JC Kuo
2021-01-19 14:11 ` Thierry Reding
2021-02-11 3:06 ` Stephen Boyd
2021-01-19 8:55 ` [PATCH v6 02/15] clk: tegra: Don't enable PLLE HW sequencer at init JC Kuo
2021-01-19 14:12 ` Thierry Reding
2021-02-11 3:06 ` Stephen Boyd
2021-01-19 8:55 ` [PATCH v6 03/15] phy: tegra: xusb: Move usb3 port init for Tegra210 JC Kuo
2021-01-19 8:55 ` [PATCH v6 04/15] phy: tegra: xusb: tegra210: Do not reset UPHY PLL JC Kuo
2021-01-19 13:52 ` Thierry Reding
2021-01-20 1:42 ` JC Kuo
2021-01-19 8:55 ` [PATCH v6 05/15] phy: tegra: xusb: Rearrange UPHY init on Tegra210 JC Kuo
2021-01-19 8:55 ` [PATCH v6 06/15] phy: tegra: xusb: Add Tegra210 lane_iddq operation JC Kuo
2021-01-19 8:55 ` [PATCH v6 07/15] phy: tegra: xusb: Add sleepwalk and suspend/resume JC Kuo
2021-01-19 13:54 ` Thierry Reding [this message]
2021-01-19 8:55 ` [PATCH v6 08/15] soc/tegra: pmc: Provide USB sleepwalk register map JC Kuo
2021-01-19 8:55 ` [PATCH v6 09/15] arm64: tegra210: XUSB PADCTL add "nvidia,pmc" prop JC Kuo
2021-01-19 8:55 ` [PATCH v6 10/15] dt-bindings: phy: tegra-xusb: Add nvidia,pmc prop JC Kuo
2021-01-19 8:55 ` [PATCH v6 11/15] phy: tegra: xusb: Add wake/sleepwalk for Tegra210 JC Kuo
2021-01-19 13:58 ` Thierry Reding
2021-01-19 8:55 ` [PATCH v6 12/15] phy: tegra: xusb: Tegra210 host mode VBUS control JC Kuo
2021-01-19 8:55 ` [PATCH v6 13/15] phy: tegra: xusb: Add wake/sleepwalk for Tegra186 JC Kuo
2021-01-19 13:59 ` Thierry Reding
2021-01-19 8:55 ` [PATCH v6 14/15] usb: host: xhci-tegra: Unlink power domain devices JC Kuo
2021-01-19 14:04 ` Thierry Reding
2021-01-19 8:55 ` [PATCH v6 15/15] xhci: tegra: Enable ELPG for runtime/system PM JC Kuo
2021-01-19 14:04 ` Thierry Reding
2021-01-19 14:07 ` [PATCH v6 00/15] Tegra XHCI controller ELPG support Thierry Reding
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