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mailbox: imx: Move the RXDB part of the mailbox into the threaded handler

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Move RXDB callback handling into the threaded handler. This similar to
the RX side and since the imx_mu_dcfg::rxdb callback can return an error, the
interrupt is only enabled on success.

Move RXDB callback handling into the threaded handler.

Reviewed-by: Peng Fan <peng.fan@nxp.com>
Reviewed-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Jassi Brar <jassisinghbrar@gmail.com>
This commit is contained in:
Sebastian Andrzej Siewior 2026-06-17 08:55:33 +02:00 committed by Jassi Brar
parent e55bea377d
commit 3225a745f5
1 changed files with 7 additions and 1 deletions
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8
drivers/mailbox/imx-mailbox.c
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@ -554,6 +554,11 @@ static irqreturn_t imx_mu_isr_th(int irq, void *p)
imx_mu_xcr_set_act(priv, cp, IMX_MU_RCR, IMX_MU_xCR_RIEn(priv->dcfg->type, cp->idx));
break;
case IMX_MU_TYPE_RXDB:
if (!priv->dcfg->rxdb(priv, cp))
imx_mu_xcr_set_act(priv, cp, IMX_MU_GIER, IMX_MU_xCR_GIEn(priv->dcfg->type, cp->idx));
break;
default:
dev_warn_ratelimited(priv->dev, "Unhandled channel type %d\n",
cp->type);
@ -610,7 +615,8 @@ 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);
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;