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usb: chipidea: clear otg interrupt status for otg capable controller

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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>
This commit is contained in:
Peter Chen 2015-02-11 12:44:51 +08:00 committed by Greg Kroah-Hartman
parent 01e3ad863f
commit 2e37cfd8e0
1 changed files with 5 additions and 4 deletions
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9
drivers/usb/chipidea/core.c
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@ -649,8 +649,12 @@ static void ci_get_otg_capable(struct ci_hdrc *ci)
ci->is_otg = (hw_read(ci, CAP_DCCPARAMS, ci->is_otg = (hw_read(ci, CAP_DCCPARAMS,
DCCPARAMS_DC | DCCPARAMS_HC) DCCPARAMS_DC | DCCPARAMS_HC)
== (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"); 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) 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]) { 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); ret = ci_hdrc_otg_init(ci);
if (ret) { if (ret) {
dev_err(dev, "init otg fails, ret = %d\n", ret); dev_err(dev, "init otg fails, ret = %d\n", ret);