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Code Issues Releases Wiki Activity

mailbox: omap: Use mbox_bind_client

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Use generic mbox_bind_client() to bind omap mailbox channel to a client.

mbox_bind_client is identical to the replaced lines, except that it:
 - Does the operation under con_mutex which prevents possible races in
   removal path
 - Sets TXDONE_BY_ACK if omap uses TXDONE_BY_POLL. omap uses
   TXDONE_BY_IRQ, so this check is not applicable.
 - Calls chan->mbox->ops->startup, if available. omap doesn't have, so
   this is not applicable.

Signed-off-by: Elliot Berman <quic_eberman@quicinc.com>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
This commit is contained in:
Elliot Berman 2023-04-10 09:16:53 -07:00 committed by Jassi Brar
parent 85a9538065
commit f11ff34d88
1 changed files with 4 additions and 18 deletions
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22
drivers/mailbox/omap-mailbox.c
View file

@ -417,8 +417,6 @@ struct mbox_chan *omap_mbox_request_channel(struct mbox_client *cl,
struct device *dev = cl->dev;
struct omap_mbox *mbox = NULL;
struct omap_mbox_device *mdev;
struct mbox_chan *chan;
unsigned long flags;
int ret;
if (!dev)
@ -441,23 +439,11 @@ struct mbox_chan *omap_mbox_request_channel(struct mbox_client *cl,
if (!mbox || !mbox->chan)
return ERR_PTR(-ENOENT);
chan = mbox->chan;
spin_lock_irqsave(&chan->lock, flags);
chan->msg_free = 0;
chan->msg_count = 0;
chan->active_req = NULL;
chan->cl = cl;
init_completion(&chan->tx_complete);
spin_unlock_irqrestore(&chan->lock, flags);
ret = mbox_bind_client(mbox->chan, cl);
if (ret)
return ERR_PTR(ret);
ret = chan->mbox->ops->startup(chan);
if (ret) {
pr_err("Unable to startup the chan (%d)\n", ret);
mbox_free_channel(chan);
chan = ERR_PTR(ret);
}
return chan;
return mbox->chan;
}
EXPORT_SYMBOL(omap_mbox_request_channel);