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mailbox: imx: Forward the timeout/ error in imx_mu_generic_tx()

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imx_mu_generic_tx() for the IMX_MU_TYPE_TXDB_V2 type polls on a register
which may timeout and is recognized as an error. This error is siltently
dropped and not dropped to the caller.

Forward the error to the caller.

Fixes: b5ef17917f ("mailbox: imx: fix TXDB_V2 channel race condition")
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 08:55:26 +02:00 committed by Jassi Brar
parent 9b2ffcfb32
commit 82ef9a635d
1 changed files with 2 additions and 1 deletions
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3
drivers/mailbox/imx-mailbox.c
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@ -227,6 +227,7 @@ static int imx_mu_generic_tx(struct imx_mu_priv *priv,
u32 val;
int ret, count;
ret = 0;
switch (cp->type) {
case IMX_MU_TYPE_TX:
imx_mu_write(priv, *arg, priv->dcfg->xTR + cp->idx * 4);
@ -259,7 +260,7 @@ static int imx_mu_generic_tx(struct imx_mu_priv *priv,
return -EINVAL;
}
return 0;
return ret;
}
static int imx_mu_generic_rx(struct imx_mu_priv *priv,