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usb: pd: policy_engine: Handle Get_Source_Cap properly from PE_SRC_Ready

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Get_Source_Cap message is responded by sending source capability message
without running sender response timer after GoodCRC is received. As a
result if sender response is timed out driver is not issuing hard reset.
Fix the issue by moving policy engine state from PE_SRC_READY to
PE_SRC_SEND_CAPABILITIES which starts sender response timer and handles
timeout.

Change-Id: Id47a4c8f989db19d28ef9c8b2c069d0b7797e17f
Signed-off-by: Hemant Kumar <hemantk@codeaurora.org>
This commit is contained in:
Hemant Kumar 2017-05-30 14:52:18 -07:00
parent 25865f691b
commit f26a5ca364
1 changed files with 2 additions and 8 deletions
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10
drivers/usb/pd/policy_engine.c
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@ -1725,14 +1725,8 @@ static void usbpd_sm(struct work_struct *w)
case PE_SRC_READY:
if (IS_CTRL(rx_msg, MSG_GET_SOURCE_CAP)) {
ret = pd_send_msg(pd, MSG_SOURCE_CAPABILITIES,
default_src_caps,
ARRAY_SIZE(default_src_caps), SOP_MSG);
if (ret) {
usbpd_err(&pd->dev, "Error sending SRC CAPs\n");
usbpd_set_state(pd, PE_SRC_SEND_SOFT_RESET);
break;
}
pd->current_state = PE_SRC_SEND_CAPABILITIES;
kick_sm(pd, 0);
} else if (IS_CTRL(rx_msg, MSG_GET_SINK_CAP)) {
ret = pd_send_msg(pd, MSG_SINK_CAPABILITIES,
pd->sink_caps, pd->num_sink_caps,