diff options
| author | Ivan T. Ivanov <ivan.ivanov@linaro.org> | 2015-09-07 14:45:25 +0300 |
|---|---|---|
| committer | Peter Chen <peter.chen@freescale.com> | 2015-10-22 09:24:25 +0800 |
| commit | 3ecb3e09b042e70799ff3a1ff464a5ecaa7547d9 (patch) | |
| tree | fea2789cc3e67fac569c9a47d7035b1e33a032d2 /drivers/usb/chipidea/otg.c | |
| parent | ffa2366666f06ce1df3296d106d90e0c2e0cd6b7 (diff) | |
usb: chipidea: Use extcon framework for VBUS and ID detect
On recent Qualcomm platforms VBUS and ID lines are not routed to
USB PHY LINK controller. Use extcon framework to receive connect
and disconnect ID and VBUS notification.
Signed-off-by: Ivan T. Ivanov <ivan.ivanov@linaro.org>
Signed-off-by: Peter Chen <peter.chen@freescale.com>
Diffstat (limited to 'drivers/usb/chipidea/otg.c')
| -rw-r--r-- | drivers/usb/chipidea/otg.c | 39 |
1 files changed, 38 insertions, 1 deletions
diff --git a/drivers/usb/chipidea/otg.c b/drivers/usb/chipidea/otg.c index ad6c87a4653c..ab4bd0c2d4ef 100644 --- a/drivers/usb/chipidea/otg.c +++ b/drivers/usb/chipidea/otg.c @@ -30,7 +30,44 @@ */ u32 hw_read_otgsc(struct ci_hdrc *ci, u32 mask) { - return hw_read(ci, OP_OTGSC, mask); + struct ci_hdrc_cable *cable; + u32 val = hw_read(ci, OP_OTGSC, mask); + + /* + * If using extcon framework for VBUS and/or ID signal + * detection overwrite OTGSC register value + */ + cable = &ci->platdata->vbus_extcon; + if (!IS_ERR(cable->edev)) { + if (cable->changed) + val |= OTGSC_BSVIS; + else + val &= ~OTGSC_BSVIS; + + cable->changed = false; + + if (cable->state) + val |= OTGSC_BSV; + else + val &= ~OTGSC_BSV; + } + + cable = &ci->platdata->id_extcon; + if (!IS_ERR(cable->edev)) { + if (cable->changed) + val |= OTGSC_IDIS; + else + val &= ~OTGSC_IDIS; + + cable->changed = false; + + if (cable->state) + val |= OTGSC_ID; + else + val &= ~OTGSC_ID; + } + + return val; } /** |