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| author | Kyle Tso <kyletso@google.com> | 2021-06-01 00:49:28 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-06-04 13:24:16 +0200 |
| commit | 063933f47a7af01650af9c4fbcc5831f1c4eb7d9 (patch) | |
| tree | 07d2a92b5e3f049219f140a5257f9b8d6e0f79ee /include | |
| parent | 4d2aa178d2ad2fb156711113790dde13e9aa2376 (diff) | |
| download | lwn-063933f47a7af01650af9c4fbcc5831f1c4eb7d9.tar.gz lwn-063933f47a7af01650af9c4fbcc5831f1c4eb7d9.zip | |
usb: typec: tcpm: Properly handle Alert and Status Messages
When receiving Alert Message, if it is not unexpected but is
unsupported for some reason, the port should return Not_Supported
Message response.
Also, according to PD3.0 Spec 6.5.2.1.4 Event Flags Field, the
OTP/OVP/OCP flags in the Event Flags field in Status Message no longer
require Get_PPS_Status Message to clear them. Thus remove it when
receiving Status Message with those flags being set.
In addition, add the missing AMS operations for Status Message.
Fixes: 64f7c494a3c0 ("typec: tcpm: Add support for sink PPS related messages")
Fixes: 0908c5aca31e ("usb: typec: tcpm: AMS and Collision Avoidance")
Signed-off-by: Kyle Tso <kyletso@google.com>
Link: https://lore.kernel.org/r/20210531164928.2368606-1-kyletso@google.com
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/usb/pd_ext_sdb.h | 4 |
1 files changed, 0 insertions, 4 deletions
diff --git a/include/linux/usb/pd_ext_sdb.h b/include/linux/usb/pd_ext_sdb.h index 0eb83ce19597..b517ebc8f0ff 100644 --- a/include/linux/usb/pd_ext_sdb.h +++ b/include/linux/usb/pd_ext_sdb.h @@ -24,8 +24,4 @@ enum usb_pd_ext_sdb_fields { #define USB_PD_EXT_SDB_EVENT_OVP BIT(3) #define USB_PD_EXT_SDB_EVENT_CF_CV_MODE BIT(4) -#define USB_PD_EXT_SDB_PPS_EVENTS (USB_PD_EXT_SDB_EVENT_OCP | \ - USB_PD_EXT_SDB_EVENT_OTP | \ - USB_PD_EXT_SDB_EVENT_OVP) - #endif /* __LINUX_USB_PD_EXT_SDB_H */ |