diff options
| author | Jiri Kosina <jkosina@suse.cz> | 2012-10-28 19:28:52 +0100 |
|---|---|---|
| committer | Jiri Kosina <jkosina@suse.cz> | 2012-10-28 19:29:19 +0100 |
| commit | 3bd7bf1f0fe14f591c089ae61bbfa9bd356f178a (patch) | |
| tree | 0058693cc9e70b7461dae551f8a19aff2efd13ca /drivers/usb/chipidea/core.c | |
| parent | f16f84937d769c893492160b1a8c3672e3992beb (diff) | |
| parent | e657e078d3dfa9f96976db7a2b5fd7d7c9f1f1a6 (diff) | |
Merge branch 'master' into for-next
Sync up with Linus' tree to be able to apply Cesar's patch
against newer version of the code.
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Diffstat (limited to 'drivers/usb/chipidea/core.c')
| -rw-r--r-- | drivers/usb/chipidea/core.c | 24 |
1 files changed, 15 insertions, 9 deletions
diff --git a/drivers/usb/chipidea/core.c b/drivers/usb/chipidea/core.c index 1083585fad00..f69d029b4607 100644 --- a/drivers/usb/chipidea/core.c +++ b/drivers/usb/chipidea/core.c @@ -273,14 +273,13 @@ static void ci_role_work(struct work_struct *work) struct ci13xxx *ci = container_of(work, struct ci13xxx, work); enum ci_role role = ci_otg_role(ci); - hw_write(ci, OP_OTGSC, OTGSC_IDIS, OTGSC_IDIS); - if (role != ci->role) { dev_dbg(ci->dev, "switching from %s to %s\n", ci_role(ci)->name, ci->roles[role]->name); ci_role_stop(ci); ci_role_start(ci, role); + enable_irq(ci->irq); } } @@ -320,17 +319,22 @@ static irqreturn_t ci_irq(int irq, void *data) { struct ci13xxx *ci = data; irqreturn_t ret = IRQ_NONE; + u32 otgsc = 0; + + if (ci->is_otg) + otgsc = hw_read(ci, OP_OTGSC, ~0); - if (ci->is_otg) { - u32 sts = hw_read(ci, OP_OTGSC, ~0); + if (ci->role != CI_ROLE_END) + ret = ci_role(ci)->irq(ci); - if (sts & OTGSC_IDIS) { - queue_work(ci->wq, &ci->work); - ret = IRQ_HANDLED; - } + if (ci->is_otg && (otgsc & OTGSC_IDIS)) { + hw_write(ci, OP_OTGSC, OTGSC_IDIS, OTGSC_IDIS); + disable_irq_nosync(ci->irq); + queue_work(ci->wq, &ci->work); + ret = IRQ_HANDLED; } - return ci->role == CI_ROLE_END ? ret : ci_role(ci)->irq(ci); + return ret; } static DEFINE_IDA(ci_ida); @@ -462,6 +466,8 @@ static int __devinit ci_hdrc_probe(struct platform_device *pdev) if (ci->roles[CI_ROLE_HOST] && ci->roles[CI_ROLE_GADGET]) { ci->is_otg = true; + /* ID pin needs 1ms debouce time, we delay 2ms for safe */ + mdelay(2); ci->role = ci_otg_role(ci); } else { ci->role = ci->roles[CI_ROLE_HOST] |