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| author | Ayushee <ayushee.shah@intel.com> | 2020-05-21 09:50:59 -0700 |
|---|---|---|
| committer | Commit Bot <commit-bot@chromium.org> | 2020-05-27 00:30:16 +0000 |
| commit | 6789d685454c5163b30487a2e1c7e2213a446dbf (patch) | |
| tree | e8d416d2aa4df1539c93655b940499d69726b898 | |
| parent | e6675aae6cf084a80317de56242338d1c5fa79ce (diff) | |
| download | chrome-ec-6789d685454c5163b30487a2e1c7e2213a446dbf.tar.gz | |
Virtual Mux: Send host events regardless of cached virtual mux state
Send host events on every virtual mux state update to avoid missed HPD
events and role swap events in the kernel.
BUG=b:157216436
BRANCH=None
TEST=Able to see 5 consecutive HPD signals on the kernel console
Signed-off-by: Ayushee <ayushee.shah@intel.com>
Change-Id: Ifca3fbe3f04a08ad78daa3a562149e7ab075e078
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/2212607
Reviewed-by: Keith Short <keithshort@chromium.org>
| -rw-r--r-- | driver/usb_mux/virtual.c | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/driver/usb_mux/virtual.c b/driver/usb_mux/virtual.c index 5a2f4a62d3..ac41686e1f 100644 --- a/driver/usb_mux/virtual.c +++ b/driver/usb_mux/virtual.c @@ -26,11 +26,9 @@ static mux_state_t virtual_mux_state[CONFIG_USB_PD_PORT_MAX_COUNT]; static inline void virtual_mux_update_state(int port, mux_state_t mux_state) { - if (virtual_mux_state[port] != mux_state) { - virtual_mux_state[port] = mux_state; + virtual_mux_state[port] = mux_state; - host_set_single_event(EC_HOST_EVENT_USB_MUX); - } + host_set_single_event(EC_HOST_EVENT_USB_MUX); } static int virtual_init(const struct usb_mux *me) |