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author | Alex Elder <elder@linaro.org> | 2020-07-02 06:25:36 -0500 |
---|---|---|
committer | David S. Miller <davem@davemloft.net> | 2020-07-02 14:31:20 -0700 |
commit | b07f283ef3d0c97f67e5f446bb027c4456d75f1f (patch) | |
tree | 194cd7f8bf09ef4b18cb1a91b1b0349149ce9208 /drivers | |
parent | fff899716f88f84afef4c952a3d7b8b48a070c4c (diff) | |
download | linux-stable-b07f283ef3d0c97f67e5f446bb027c4456d75f1f.tar.gz linux-stable-b07f283ef3d0c97f67e5f446bb027c4456d75f1f.tar.bz2 linux-stable-b07f283ef3d0c97f67e5f446bb027c4456d75f1f.zip |
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>
Diffstat (limited to 'drivers')
-rw-r--r-- | drivers/net/ipa/ipa_endpoint.c | 29 |
1 files changed, 13 insertions, 16 deletions
diff --git a/drivers/net/ipa/ipa_endpoint.c b/drivers/net/ipa/ipa_endpoint.c index d6ef5b8647bf..df4202794e69 100644 --- a/drivers/net/ipa/ipa_endpoint.c +++ b/drivers/net/ipa/ipa_endpoint.c @@ -378,6 +378,9 @@ ipa_endpoint_program_suspend(struct ipa_endpoint *endpoint, bool enable) { bool suspended; + if (endpoint->ipa->version != IPA_VERSION_3_5_1) + return enable; /* For IPA v4.0+, no change made */ + /* assert(!endpoint->toward_ipa); */ suspended = ipa_endpoint_init_ctrl(endpoint, enable); @@ -395,26 +398,22 @@ ipa_endpoint_program_suspend(struct ipa_endpoint *endpoint, bool enable) /* Enable or disable delay or suspend mode on all modem endpoints */ void ipa_endpoint_modem_pause_all(struct ipa *ipa, bool enable) { - bool support_suspend; u32 endpoint_id; /* DELAY mode doesn't work correctly on IPA v4.2 */ if (ipa->version == IPA_VERSION_4_2) return; - /* Only IPA v3.5.1 supports SUSPEND mode on RX endpoints */ - support_suspend = ipa->version == IPA_VERSION_3_5_1; - for (endpoint_id = 0; endpoint_id < IPA_ENDPOINT_MAX; endpoint_id++) { struct ipa_endpoint *endpoint = &ipa->endpoint[endpoint_id]; if (endpoint->ee_id != GSI_EE_MODEM) continue; - /* Set TX delay mode, or for IPA v3.5.1 RX suspend mode */ + /* Set TX delay mode or RX suspend mode */ if (endpoint->toward_ipa) ipa_endpoint_program_delay(endpoint, enable); - else if (support_suspend) + else (void)ipa_endpoint_program_suspend(endpoint, enable); } } @@ -1248,8 +1247,7 @@ static int ipa_endpoint_reset_rx_aggr(struct ipa_endpoint *endpoint) gsi_channel_reset(gsi, endpoint->channel_id, false); /* Make sure the channel isn't suspended */ - if (endpoint->ipa->version == IPA_VERSION_3_5_1) - suspended = ipa_endpoint_program_suspend(endpoint, false); + suspended = ipa_endpoint_program_suspend(endpoint, false); /* Start channel and do a 1 byte read */ ret = gsi_channel_start(gsi, endpoint->channel_id); @@ -1340,8 +1338,7 @@ static void ipa_endpoint_program(struct ipa_endpoint *endpoint) ipa_endpoint_init_seq(endpoint); ipa_endpoint_init_mode(endpoint); } else { - if (endpoint->ipa->version == IPA_VERSION_3_5_1) - (void)ipa_endpoint_program_suspend(endpoint, false); + (void)ipa_endpoint_program_suspend(endpoint, false); ipa_endpoint_init_hdr_ext(endpoint); ipa_endpoint_init_aggr(endpoint); ipa_endpoint_init_hdr_metadata_mask(endpoint); @@ -1416,11 +1413,11 @@ void ipa_endpoint_suspend_one(struct ipa_endpoint *endpoint) if (!endpoint->toward_ipa) ipa_endpoint_replenish_disable(endpoint); - /* IPA v3.5.1 doesn't use channel stop for suspend */ - stop_channel = endpoint->ipa->version != IPA_VERSION_3_5_1; - if (!endpoint->toward_ipa && !stop_channel) + if (!endpoint->toward_ipa) (void)ipa_endpoint_program_suspend(endpoint, true); + /* IPA v3.5.1 doesn't use channel stop for suspend */ + stop_channel = endpoint->ipa->version != IPA_VERSION_3_5_1; ret = gsi_channel_suspend(gsi, endpoint->channel_id, stop_channel); if (ret) dev_err(dev, "error %d suspending channel %u\n", ret, @@ -1437,11 +1434,11 @@ void ipa_endpoint_resume_one(struct ipa_endpoint *endpoint) if (!(endpoint->ipa->enabled & BIT(endpoint->endpoint_id))) return; - /* IPA v3.5.1 doesn't use channel start for resume */ - start_channel = endpoint->ipa->version != IPA_VERSION_3_5_1; - if (!endpoint->toward_ipa && !start_channel) + if (!endpoint->toward_ipa) (void)ipa_endpoint_program_suspend(endpoint, false); + /* IPA v3.5.1 doesn't use channel start for resume */ + start_channel = endpoint->ipa->version != IPA_VERSION_3_5_1; ret = gsi_channel_resume(gsi, endpoint->channel_id, start_channel); if (ret) dev_err(dev, "error %d resuming channel %u\n", ret, |