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| author | Peter Chen <peter.chen@freescale.com> | 2015-02-11 12:44:51 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2015-03-18 16:19:09 +0100 |
| commit | 2e37cfd8e0a0bb161a75ce2bc2302a1a1662fdb7 (patch) | |
| tree | aeb71ea89c3ceaa076969ecd410fca615c6ef29b /drivers/usb/chipidea | |
| parent | 01e3ad863fc0f15b802c8a5247e1c252bd04f429 (diff) | |
| download | blackbird-op-linux-2e37cfd8e0a0bb161a75ce2bc2302a1a1662fdb7.tar.gz blackbird-op-linux-2e37cfd8e0a0bb161a75ce2bc2302a1a1662fdb7.zip | |
usb: chipidea: clear otg interrupt status for otg capable controller
We need to do it for all otg capable controller, not only peripheral
featured otg capable controller, otherwise, the host-only role, but
otg capable controller may be responded by otg interrupt.
Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/chipidea')
| -rw-r--r-- | drivers/usb/chipidea/core.c | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/drivers/usb/chipidea/core.c b/drivers/usb/chipidea/core.c index 6d9dc2d175eb..23373543a149 100644 --- a/drivers/usb/chipidea/core.c +++ b/drivers/usb/chipidea/core.c @@ -649,8 +649,12 @@ static void ci_get_otg_capable(struct ci_hdrc *ci) ci->is_otg = (hw_read(ci, CAP_DCCPARAMS, DCCPARAMS_DC | DCCPARAMS_HC) == (DCCPARAMS_DC | DCCPARAMS_HC)); - if (ci->is_otg) + if (ci->is_otg) { dev_dbg(ci->dev, "It is OTG capable controller\n"); + /* Disable and clear all OTG irq */ + hw_write_otgsc(ci, OTGSC_INT_EN_BITS | OTGSC_INT_STATUS_BITS, + OTGSC_INT_STATUS_BITS); + } } static int ci_hdrc_probe(struct platform_device *pdev) @@ -749,9 +753,6 @@ static int ci_hdrc_probe(struct platform_device *pdev) } if (ci->is_otg && ci->roles[CI_ROLE_GADGET]) { - /* Disable and clear all OTG irq */ - hw_write_otgsc(ci, OTGSC_INT_EN_BITS | OTGSC_INT_STATUS_BITS, - OTGSC_INT_STATUS_BITS); ret = ci_hdrc_otg_init(ci); if (ret) { dev_err(dev, "init otg fails, ret = %d\n", ret); |
