evie/android_kernel_oneplus_msm8998
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msm: gsi: fix to client notify on poll mode

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When processing an IEOB interrupt, do not process the pending
events in case the channel is in polling mode.

Change-Id: I9b9fbc71ae33fe1bfef837580f9f8e9aa875160d
CRs-Fixed: 1112064
Acked-by: Ady Abraham <adya@qti.qualcomm.com>
Signed-off-by: Skylar Chang <chiaweic@codeaurora.org>
This commit is contained in:
Skylar Chang 2017-01-16 10:29:49 -08:00 • committed by Gerrit - the friendly Code Review server
parent 1f1d944084
commit 11f6178a51
1 changed files with 8 additions and 3 deletions
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11
drivers/platform/msm/gsi/gsi.c
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@ -1,4 +1,4 @@
/* Copyright (c) 2015-2016, The Linux Foundation. All rights reserved.
/* Copyright (c) 2015-2017, The Linux Foundation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 and
@ -362,9 +362,14 @@ static void gsi_process_chan(struct gsi_xfer_compl_evt *evt,
notify->chan_user_data = ch_ctx->props.chan_user_data;
notify->evt_id = evt->code;
notify->bytes_xfered = evt->len;
if (callback)
if (callback) {
if (atomic_read(&ch_ctx->poll_mode)) {
GSIERR("Calling client callback in polling mode\n");
WARN_ON(1);
}
ch_ctx->props.xfer_cb(notify);
}
}
static void gsi_process_evt_re(struct gsi_evt_ctx *ctx,
struct gsi_chan_xfer_notify *notify, bool callback)
@ -459,12 +464,12 @@ check_again:
ctx->ring.rp = rp;
while (ctx->ring.rp_local != rp) {
++cntr;
gsi_process_evt_re(ctx, &notify, true);
if (ctx->props.exclusive &&
atomic_read(&ctx->chan->poll_mode)) {
cntr = 0;
break;
}
gsi_process_evt_re(ctx, &notify, true);
}
gsi_ring_evt_doorbell(ctx);
if (cntr != 0)