net: ipa: move version test inside ipa_endpoint_program_suspend()
IPA version 4.0+ does not support endpoint suspend. Put a test at the top of ipa_endpoint_program_suspend() that returns immediately if suspend is not supported rather than making that check in the caller. Signed-off-by: Alex Elder <elder@linaro.org> Signed-off-by: David S. Miller <davem@davemloft.net>
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@ -378,6 +378,9 @@ ipa_endpoint_program_suspend(struct ipa_endpoint *endpoint, bool enable)
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{
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bool suspended;
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if (endpoint->ipa->version != IPA_VERSION_3_5_1)
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return enable; /* For IPA v4.0+, no change made */
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/* assert(!endpoint->toward_ipa); */
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suspended = ipa_endpoint_init_ctrl(endpoint, enable);
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@ -395,26 +398,22 @@ ipa_endpoint_program_suspend(struct ipa_endpoint *endpoint, bool enable)
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/* Enable or disable delay or suspend mode on all modem endpoints */
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void ipa_endpoint_modem_pause_all(struct ipa *ipa, bool enable)
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{
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bool support_suspend;
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u32 endpoint_id;
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/* DELAY mode doesn't work correctly on IPA v4.2 */
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if (ipa->version == IPA_VERSION_4_2)
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return;
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/* Only IPA v3.5.1 supports SUSPEND mode on RX endpoints */
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support_suspend = ipa->version == IPA_VERSION_3_5_1;
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for (endpoint_id = 0; endpoint_id < IPA_ENDPOINT_MAX; endpoint_id++) {
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struct ipa_endpoint *endpoint = &ipa->endpoint[endpoint_id];
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if (endpoint->ee_id != GSI_EE_MODEM)
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continue;
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/* Set TX delay mode, or for IPA v3.5.1 RX suspend mode */
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/* Set TX delay mode or RX suspend mode */
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if (endpoint->toward_ipa)
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ipa_endpoint_program_delay(endpoint, enable);
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else if (support_suspend)
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else
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(void)ipa_endpoint_program_suspend(endpoint, enable);
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}
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}
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@ -1248,8 +1247,7 @@ static int ipa_endpoint_reset_rx_aggr(struct ipa_endpoint *endpoint)
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gsi_channel_reset(gsi, endpoint->channel_id, false);
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/* Make sure the channel isn't suspended */
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if (endpoint->ipa->version == IPA_VERSION_3_5_1)
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suspended = ipa_endpoint_program_suspend(endpoint, false);
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suspended = ipa_endpoint_program_suspend(endpoint, false);
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/* Start channel and do a 1 byte read */
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ret = gsi_channel_start(gsi, endpoint->channel_id);
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@ -1340,8 +1338,7 @@ static void ipa_endpoint_program(struct ipa_endpoint *endpoint)
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ipa_endpoint_init_seq(endpoint);
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ipa_endpoint_init_mode(endpoint);
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} else {
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if (endpoint->ipa->version == IPA_VERSION_3_5_1)
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(void)ipa_endpoint_program_suspend(endpoint, false);
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(void)ipa_endpoint_program_suspend(endpoint, false);
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ipa_endpoint_init_hdr_ext(endpoint);
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ipa_endpoint_init_aggr(endpoint);
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ipa_endpoint_init_hdr_metadata_mask(endpoint);
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@ -1416,11 +1413,11 @@ void ipa_endpoint_suspend_one(struct ipa_endpoint *endpoint)
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if (!endpoint->toward_ipa)
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ipa_endpoint_replenish_disable(endpoint);
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/* IPA v3.5.1 doesn't use channel stop for suspend */
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stop_channel = endpoint->ipa->version != IPA_VERSION_3_5_1;
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if (!endpoint->toward_ipa && !stop_channel)
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if (!endpoint->toward_ipa)
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(void)ipa_endpoint_program_suspend(endpoint, true);
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/* IPA v3.5.1 doesn't use channel stop for suspend */
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stop_channel = endpoint->ipa->version != IPA_VERSION_3_5_1;
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ret = gsi_channel_suspend(gsi, endpoint->channel_id, stop_channel);
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if (ret)
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dev_err(dev, "error %d suspending channel %u\n", ret,
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@ -1437,11 +1434,11 @@ void ipa_endpoint_resume_one(struct ipa_endpoint *endpoint)
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if (!(endpoint->ipa->enabled & BIT(endpoint->endpoint_id)))
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return;
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/* IPA v3.5.1 doesn't use channel start for resume */
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start_channel = endpoint->ipa->version != IPA_VERSION_3_5_1;
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if (!endpoint->toward_ipa && !start_channel)
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if (!endpoint->toward_ipa)
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(void)ipa_endpoint_program_suspend(endpoint, false);
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/* IPA v3.5.1 doesn't use channel start for resume */
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start_channel = endpoint->ipa->version != IPA_VERSION_3_5_1;
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ret = gsi_channel_resume(gsi, endpoint->channel_id, start_channel);
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if (ret)
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dev_err(dev, "error %d resuming channel %u\n", ret,
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