diff options
Diffstat (limited to 'drivers/net/ipa/gsi.c')
| -rw-r--r-- | drivers/net/ipa/gsi.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/net/ipa/gsi.c b/drivers/net/ipa/gsi.c index eb4c5d408a83..2cf10c9f0143 100644 --- a/drivers/net/ipa/gsi.c +++ b/drivers/net/ipa/gsi.c @@ -781,8 +781,10 @@ static void gsi_channel_program(struct gsi_channel *channel, bool doorbell) if (gsi->version == IPA_VERSION_3_5_1 && doorbell) val |= USE_DB_ENG_FMASK; - /* Starting with IPA v4.0 the command channel uses the escape buffer */ - if (gsi->version != IPA_VERSION_3_5_1 && channel->command) + /* v4.0 introduces an escape buffer for prefetch. We use it + * on all but the AP command channel. + */ + if (gsi->version != IPA_VERSION_3_5_1 && !channel->command) val |= USE_ESCAPE_BUF_ONLY_FMASK; iowrite32(val, gsi->virt + GSI_CH_C_QOS_OFFSET(channel_id)); |