IPA version 4.2 has a hardware quirk that affects endpoint delay
mode, so it isn't used there.  Isolate the test that avoids using
delay mode for that version inside ipa_endpoint_program_delay(),
rather than making that check in the caller.

Signed-off-by: Alex Elder <el...@linaro.org>
---
 drivers/net/ipa/ipa_endpoint.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/net/ipa/ipa_endpoint.c b/drivers/net/ipa/ipa_endpoint.c
index a7b5a6407e8f..7f4bea18bd02 100644
--- a/drivers/net/ipa/ipa_endpoint.c
+++ b/drivers/net/ipa/ipa_endpoint.c
@@ -318,7 +318,9 @@ ipa_endpoint_program_delay(struct ipa_endpoint *endpoint, 
bool enable)
 {
        /* assert(endpoint->toward_ipa); */
 
-       (void)ipa_endpoint_init_ctrl(endpoint, enable);
+       /* Delay mode doesn't work properly for IPA v4.2 */
+       if (endpoint->ipa->version != IPA_VERSION_4_2)
+               (void)ipa_endpoint_init_ctrl(endpoint, enable);
 }
 
 /* Returns previous suspend state (true means it was enabled) */
@@ -1294,8 +1296,7 @@ static void ipa_endpoint_reset(struct ipa_endpoint 
*endpoint)
 static void ipa_endpoint_program(struct ipa_endpoint *endpoint)
 {
        if (endpoint->toward_ipa) {
-               if (endpoint->ipa->version != IPA_VERSION_4_2)
-                       ipa_endpoint_program_delay(endpoint, false);
+               ipa_endpoint_program_delay(endpoint, false);
                ipa_endpoint_init_hdr_ext(endpoint);
                ipa_endpoint_init_aggr(endpoint);
                ipa_endpoint_init_deaggr(endpoint);
-- 
2.25.1

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