On IPAv3.1 there is no such FLAVOR_0 register so it is impossible to read tx/rx channel masks and we have to rely on the correctness on the provided configuration. Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@xxxxxxxxxxxxxx> --- drivers/net/ipa/ipa_endpoint.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/drivers/net/ipa/ipa_endpoint.c b/drivers/net/ipa/ipa_endpoint.c index 06d8aa34276e..10c477e1bb90 100644 --- a/drivers/net/ipa/ipa_endpoint.c +++ b/drivers/net/ipa/ipa_endpoint.c @@ -1659,6 +1659,15 @@ int ipa_endpoint_config(struct ipa *ipa) u32 max; u32 val; + /* Some IPA versions don't provide a FLAVOR register and we cannot + * check the rx/tx masks hence we have to rely on the correctness + * of the provided configuration. + */ + if (ipa->version == IPA_VERSION_3_1) { + ipa->available = U32_MAX; + return 0; + } + /* Find out about the endpoints supplied by the hardware, and ensure * the highest one doesn't exceed the number we support. */ -- 2.30.0