diff options
| -rw-r--r-- | drivers/net/ipa/ipa_endpoint.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/drivers/net/ipa/ipa_endpoint.c b/drivers/net/ipa/ipa_endpoint.c index 3520852936ed..ab02669bae4e 100644 --- a/drivers/net/ipa/ipa_endpoint.c +++ b/drivers/net/ipa/ipa_endpoint.c @@ -1731,6 +1731,21 @@ int ipa_endpoint_config(struct ipa *ipa) u32 max; u32 val; + /* Prior to IPAv3.5, the FLAVOR_0 register was not supported. + * Furthermore, the endpoints were not grouped such that TX + * endpoint numbers started with 0 and RX endpoints had numbers + * higher than all TX endpoints, so we can't do the simple + * direction check used for newer hardware below. + * + * For hardware that doesn't support the FLAVOR_0 register, + * just set the available mask to support any endpoint, and + * assume the configuration is valid. + */ + if (ipa->version < IPA_VERSION_3_5) { + ipa->available = ~0; + return 0; + } + /* Find out about the endpoints supplied by the hardware, and ensure * the highest one doesn't exceed the number we support. */ |