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| author | Peter Chen <peter.chen@freescale.com> | 2014-09-22 08:14:16 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-09-23 21:32:31 -0700 |
| commit | 27c62c2da177178771517744acaced08767214e2 (patch) | |
| tree | 72b57e9d294226fc672d352894ef95b5fd39b42a /drivers | |
| parent | f40017e0f3325b4c42139f54748ac4f0bbed3c52 (diff) | |
| download | linux-27c62c2da177178771517744acaced08767214e2.tar.gz linux-27c62c2da177178771517744acaced08767214e2.tar.bz2 linux-27c62c2da177178771517744acaced08767214e2.zip | |
usb: chipidea: otg initialization is only needed when the gadget is supported
We have only needed to enable otg initialization when both of
below conditions are satisfied:
- The controller is otg capable
- The gadget function is enabled
If the controller is otg capable, but is host-only configuration, we do
not need to access register otgsc and do any otg operations (eg, create
otg workqueue).
Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/usb/chipidea/core.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/usb/chipidea/core.c b/drivers/usb/chipidea/core.c index 41d45a16dd30..7cb74c4f0e92 100644 --- a/drivers/usb/chipidea/core.c +++ b/drivers/usb/chipidea/core.c @@ -662,7 +662,7 @@ static int ci_hdrc_probe(struct platform_device *pdev) goto deinit_phy; } - if (ci->is_otg) { + 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); |