[PATCH 3/5] mailbox: imx: Move the RXDB part of the mailbox into the threaded handler

[Sebastian Andrzej Siewior]

Move RXDB callback handling into the threaded handler. This similar to
the RX side except that we unmask it unconditionally in threaded
handler.

Move RXDB callback handling into the threaded handler.

Signed-off-by: Sebastian Andrzej Siewior <bigeasy at linutronix.de>
---
 drivers/mailbox/imx-mailbox.c | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/drivers/mailbox/imx-mailbox.c b/drivers/mailbox/imx-mailbox.c
index 30a52c609e56b..9bf6484af45ed 100644
--- a/drivers/mailbox/imx-mailbox.c
+++ b/drivers/mailbox/imx-mailbox.c
@@ -528,6 +528,12 @@ static irqreturn_t imx_mu_isr_th(int irq, void *p)
 			imx_mu_xcr_rmw(priv, IMX_MU_RCR, IMX_MU_xCR_RIEn(priv->dcfg->type, cp->idx), 0);
 		return IRQ_HANDLED;
 
+	case IMX_MU_TYPE_RXDB:
+		cp->pending = 0;
+		priv->dcfg->rxdb(priv, cp);
+		imx_mu_xcr_rmw(priv, IMX_MU_GIER, IMX_MU_xCR_RIEn(priv->dcfg->type, cp->idx), 0);
+		return IRQ_HANDLED;
+
 	default:
 		dev_warn_ratelimited(priv->dev, "Unhandled channel type %d\n",
 				     cp->type);
@@ -585,7 +591,9 @@ static irqreturn_t imx_mu_isr(int irq, void *p)
 		ret = IRQ_WAKE_THREAD;
 	} else if ((val == IMX_MU_xSR_GIPn(priv->dcfg->type, cp->idx)) &&
 		   (cp->type == IMX_MU_TYPE_RXDB)) {
-		priv->dcfg->rxdb(priv, cp);
+		cp->pending = 1;
+		imx_mu_xcr_rmw(priv, IMX_MU_GIER, 0, IMX_MU_xCR_GIEn(priv->dcfg->type, cp->idx));
+		ret = IRQ_WAKE_THREAD;
 	} else {
 		dev_warn_ratelimited(priv->dev, "Not handled interrupt\n");
 		return IRQ_NONE;

-- 
2.53.0