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mailbox: rockchip: add shared irq support

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This fixed some Rockchip SoCs just shared one irq with
all mailbox channels.

Change-Id: Ie78a3372b58ad20a20e75046aca379a2db65260f
Signed-off-by: Frank Wang <frank.wang@rock-chips.com>
This commit is contained in:
Frank Wang
2020-02-04 18:05:03 +08:00
parent 305f424fda
commit 3a910524c9
1 changed files with 17 additions and 10 deletions
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27
drivers/mailbox/rockchip-mailbox.c
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@@ -207,18 +207,25 @@ static int rockchip_mbox_probe(struct platform_device *pdev)
for (i = 0; i < mb->mbox.num_chans; i++) {
irq = platform_get_irq(pdev, i);
if (irq < 0)
return irq;
ret = devm_request_threaded_irq(&pdev->dev, irq,
NULL,
rockchip_mbox_irq, IRQF_ONESHOT,
dev_name(&pdev->dev), mb);
if (ret < 0)
return ret;
if (irq < 0) {
/* For shared irq case, only could be got one time */
if (i > 0 && irq == -ENXIO)
mb->chans[i].irq = mb->chans[0].irq;
else
return irq;
} else {
mb->chans[i].irq = irq;
ret = devm_request_threaded_irq(&pdev->dev, irq,
NULL,
rockchip_mbox_irq,
IRQF_ONESHOT,
dev_name(&pdev->dev),
mb);
if (ret < 0)
return ret;
}
mb->chans[i].idx = i;
mb->chans[i].irq = irq;
mb->mbox.chans[i].con_priv = &mb->chans[i];
}