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| author | Tony Lindgren <tony@atomide.com> | 2019-12-22 21:17:03 +0300 |
|---|---|---|
| committer | Kishon Vijay Abraham I <kishon@ti.com> | 2019-12-26 13:57:53 +0300 |
| commit | 9492535ecd9b6df89e483ddd05740b3f3d547600 (patch) | |
| tree | 9536fdea98bc689dc7b2345be6a79afce09de139 /drivers/phy/rockchip/phy-rockchip-inno-hdmi.c | |
| parent | 63078b6ba09e842f09df052c5728857389fddcd2 (diff) | |
| download | linux-9492535ecd9b6df89e483ddd05740b3f3d547600.tar.xz | |
phy: cpcap-usb: Improve host vs docked mode detection
When docked to a Motorola lapdock or media dock, we're in USB A-host mode
with VBUS provided by the dock. When in regular USB A-host mode, we're
providing the VBUS. And in regular USB A-host mode we must also keep
kicking the VBUS to keep it active.
Let's wait a bit before configuring the USB PHY to allow some time between
the ID and VBUS changes. And let's add vbus_provider flag so we can detect
docked mode and regularo USB A-host mode better.
With better USB A-host mode detection, we can now also just kick the
VBUS to keep it enabled and leave out the unnecessary line muxing.
We only need to set and clear vbus_provider in the delayed work so no
locking is needed for it currently.
Cc: Merlijn Wajer <merlijn@wizzup.org>
Cc: Pavel Machek <pavel@ucw.cz>
Cc: Sebastian Reichel <sre@kernel.org>
Acked-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Diffstat (limited to 'drivers/phy/rockchip/phy-rockchip-inno-hdmi.c')
0 files changed, 0 insertions, 0 deletions