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-rw-r--r--drivers/mailbox/imx-mailbox.c9
1 files changed, 7 insertions, 2 deletions
diff --git a/drivers/mailbox/imx-mailbox.c b/drivers/mailbox/imx-mailbox.c
index 080b60849e48..7205b825c8b5 100644
--- a/drivers/mailbox/imx-mailbox.c
+++ b/drivers/mailbox/imx-mailbox.c
@@ -292,6 +292,7 @@ static int imx_mu_startup(struct mbox_chan *chan)
{
struct imx_mu_priv *priv = to_imx_mu_priv(chan->mbox);
struct imx_mu_con_priv *cp = chan->con_priv;
+ unsigned long irq_flag = IRQF_SHARED;
int ret;
pm_runtime_get_sync(priv->dev);
@@ -302,8 +303,12 @@ static int imx_mu_startup(struct mbox_chan *chan)
return 0;
}
- ret = request_irq(priv->irq, imx_mu_isr, IRQF_SHARED |
- IRQF_NO_SUSPEND, cp->irq_desc, chan);
+ /* IPC MU should be with IRQF_NO_SUSPEND set */
+ if (!priv->dev->pm_domain)
+ irq_flag |= IRQF_NO_SUSPEND;
+
+ ret = request_irq(priv->irq, imx_mu_isr, irq_flag,
+ cp->irq_desc, chan);
if (ret) {
dev_err(priv->dev,
"Unable to acquire IRQ %d\n", priv->irq);