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mailbox: qcom-ipcc: Fix IPCC mbox channel exhaustion

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Fix IPCC (Inter-Processor Communication Controller) channel exhaustion by
setting the channel private data to NULL on mbox shutdown.

Err Logs:
remoteproc: MBA booted without debug policy, loading mpss
remoteproc: glink-edge: failed to acquire IPC channel
remoteproc: failed to probe subdevices for remoteproc: -16

Fixes: fa74a0257f ("mailbox: Add support for Qualcomm IPCC")
Signed-off-by: Sibi Sankar <[email protected]>
Cc: [email protected]
Reviewed-by: Bjorn Andersson <[email protected]>
Reviewed-by: Manivannan Sadhasivam <[email protected]>
Signed-off-by: Jassi Brar <[email protected]>
This commit is contained in:
Sibi Sankar authored and Jassi Brar committed 2021-06-26 11:40:29 -05:00
1 parent 8ebc3b5aa4
commit d6fbfdbc12
1 file changed
+6
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drivers/mailbox/qcom-ipcc.c
+6
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@@ -155,6 +155,11 @@ static int qcom_ipcc_mbox_send_data(struct mbox_chan *chan, void *data)
return 0;
}
static void qcom_ipcc_mbox_shutdown(struct mbox_chan *chan)
{
chan->con_priv = NULL;
}
static struct mbox_chan *qcom_ipcc_mbox_xlate(struct mbox_controller *mbox,
const struct of_phandle_args *ph)
{
@@ -184,6 +189,7 @@ static struct mbox_chan *qcom_ipcc_mbox_xlate(struct mbox_controller *mbox,
static const struct mbox_chan_ops ipcc_mbox_chan_ops = {
.send_data = qcom_ipcc_mbox_send_data,
.shutdown = qcom_ipcc_mbox_shutdown,
};
static int qcom_ipcc_setup_mbox(struct qcom_ipcc *ipcc)