diff options
| author | Li Jun <jun.li@nxp.com> | 2016-02-19 05:04:45 +0300 |
|---|---|---|
| committer | Felipe Balbi <balbi@kernel.org> | 2016-03-04 16:14:37 +0300 |
| commit | 2dfb46be1a231888e8d51b97573f592e408d5199 (patch) | |
| tree | 086b970c61c0f51de5ad7440d447aba028d58267 | |
| parent | c5348b621bd8a61fab3de9f69bf14c8545d7d642 (diff) | |
| download | linux-2dfb46be1a231888e8d51b97573f592e408d5199.tar.xz | |
usb: chipidea: otg: set host_request_flag for gadget
Set host_request_flag if the current peripheral wants to take host role
via changing a_bus_req or b_bus_req by user application.
Acked-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Li Jun <jun.li@nxp.com>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
| -rw-r--r-- | drivers/usb/chipidea/otg_fsm.c | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/drivers/usb/chipidea/otg_fsm.c b/drivers/usb/chipidea/otg_fsm.c index ba90dc66703d..cb28e763f0b8 100644 --- a/drivers/usb/chipidea/otg_fsm.c +++ b/drivers/usb/chipidea/otg_fsm.c @@ -66,6 +66,11 @@ set_a_bus_req(struct device *dev, struct device_attribute *attr, return count; } ci->fsm.a_bus_req = 1; + if (ci->fsm.otg->state == OTG_STATE_A_PERIPHERAL) { + ci->gadget.host_request_flag = 1; + mutex_unlock(&ci->fsm.lock); + return count; + } } ci_otg_queue_work(ci); @@ -144,8 +149,14 @@ set_b_bus_req(struct device *dev, struct device_attribute *attr, mutex_lock(&ci->fsm.lock); if (buf[0] == '0') ci->fsm.b_bus_req = 0; - else if (buf[0] == '1') + else if (buf[0] == '1') { ci->fsm.b_bus_req = 1; + if (ci->fsm.otg->state == OTG_STATE_B_PERIPHERAL) { + ci->gadget.host_request_flag = 1; + mutex_unlock(&ci->fsm.lock); + return count; + } + } ci_otg_queue_work(ci); mutex_unlock(&ci->fsm.lock); |