[PATCH 2/3] mailbox: mtk-cmdq: Use mailbox rx_callback

Chun-Kuang Hu
2021-03-14T23:35:52Z

rx_callback is a standard mailbox callback mechanism and could cover the
function of proprietary cmdq_task_cb, so use the standard one instead of
the proprietary one. But the client driver has already used cmdq_task_cb,
so keep cmdq_task_cb until all client driver use rx_callback instead of
cmdq_task_cb.

Cc: Jassi Brar <jassisinghbrar@gmail.com>
Cc: Matthias Brugger <matthias.bgg@gmail.com>
Cc: Houlong Wei <houlong.wei@mediatek.com>
Cc: Bibby Hsieh <bibby.hsieh@mediatek.com>
Cc: Dennis YC Hsieh <dennis-yc.hsieh@mediatek.com>
Cc: linux-kernel@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-mediatek@lists.infradead.org
Signed-off-by: Chun-Kuang Hu <chunkuang.hu@kernel.org>
---
drivers/mailbox/mtk-cmdq-mailbox.c | 14 +++++++++-----
1 file changed, 9 insertions(+), 5 deletions(-)

diff --git a/drivers/mailbox/mtk-cmdq-mailbox.c b/drivers/mailbox/mtk-cmdq-mailbox.c
index 3d37c1cd40f1..ef59e2234f22 100644
--- a/drivers/mailbox/mtk-cmdq-mailbox.c
+++ b/drivers/mailbox/mtk-cmdq-mailbox.c
@@ -188,7 +188,10 @@ static void cmdq_task_exec_done(struct cmdq_task *task, int sta)
WARN_ON(cb->cb == (cmdq_async_flush_cb)NULL);
data.sta = sta;
data.data = cb->data;
- cb->cb(data);
+ if (cb->cb)
+ cb->cb(data);
+
+ mbox_chan_received_data(task->thread->chan, &data);

list_del(&task->list_entry);
}
@@ -451,12 +454,13 @@ static int cmdq_mbox_flush(struct mbox_chan *chan, unsigned long timeout)

list_for_each_entry_safe(task, tmp, &thread->task_busy_list,
list_entry) {
+ data.sta = -ECONNABORTED;
+ data.data = cb->data;
cb = &task->pkt->async_cb;
- if (cb->cb) {
- data.sta = -ECONNABORTED;
- data.data = cb->data;
+ if (cb->cb)
cb->cb(data);
- }
+
+ mbox_chan_received_data(task->thread->chan, &data);
list_del(&task->list_entry);
kfree(task);
}
--
2.17.1