diff options
Diffstat (limited to 'drivers/net/ipa/ipa_clock.h')
| -rw-r--r-- | drivers/net/ipa/ipa_clock.h | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/drivers/net/ipa/ipa_clock.h b/drivers/net/ipa/ipa_clock.h index 2a0f7ff3c9e6..8692c0d98bd1 100644 --- a/drivers/net/ipa/ipa_clock.h +++ b/drivers/net/ipa/ipa_clock.h @@ -54,14 +54,20 @@ void ipa_clock_exit(struct ipa_clock *clock); * ipa_clock_get() - Get an IPA clock reference * @ipa: IPA pointer * - * This call blocks if this is the first reference. + * Return: 0 if clock started, 1 if clock already running, or a negative + * error code + * + * This call blocks if this is the first reference. A reference is + * taken even if an error occurs starting the IPA clock. */ -void ipa_clock_get(struct ipa *ipa); +int ipa_clock_get(struct ipa *ipa); /** * ipa_clock_get_additional() - Get an IPA clock reference if not first * @ipa: IPA pointer * + * Return: true if reference taken, false otherwise + * * This returns immediately, and only takes a reference if not the first */ bool ipa_clock_get_additional(struct ipa *ipa); @@ -70,10 +76,12 @@ bool ipa_clock_get_additional(struct ipa *ipa); * ipa_clock_put() - Drop an IPA clock reference * @ipa: IPA pointer * + * Return: 0 if successful, or a negative error code + * * This drops a clock reference. If the last reference is being dropped, * the clock is stopped and RX endpoints are suspended. This call will * not block unless the last reference is dropped. */ -void ipa_clock_put(struct ipa *ipa); +int ipa_clock_put(struct ipa *ipa); #endif /* _IPA_CLOCK_H_ */ |