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mailbox: mpfs-mbox: fix MMIO mapping calculation

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Correct the MMIO mapping size calculation, which
previously relied on an invalid start/end subtraction.

This change corrects a functional bug and cleans up the driver without
altering its behavior.

Fixes: 111e9bf6a5 ("mailbox: add PolarFire SoC mailbox driver")
Signed-off-by: Jamie Gibbons <jamie.gibbons@microchip.com>
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
This commit is contained in:
Jamie Gibbons
2026-05-18 15:17:09 +01:00
committed by Tom Rini
parent 1296a428c6
commit a05adbb9b3
1 changed files with 2 additions and 2 deletions
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4
drivers/mailbox/mpfs-mbox.c
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@@ -145,7 +145,7 @@ static int mpfs_mbox_probe(struct udevice *dev)
return ret;
};
mbox->ctrl_base = devm_ioremap(dev, regs.start, regs.start - regs.end);
mbox->ctrl_base = devm_ioremap(dev, res.start, resource_size(&res));
ret = ofnode_read_resource(node, 2, &regs);
if (ret) {
@@ -153,7 +153,7 @@ static int mpfs_mbox_probe(struct udevice *dev)
return ret;
};
mbox->mbox_base = devm_ioremap(dev, regs.start, regs.start - regs.end);
mbox->mbox_base = devm_ioremap(dev, res.start, resource_size(&res));
mbox->dev = dev;
dev_set_priv(dev, mbox);