[PATCH] serial: sifive: Remove 0 from fu540-c000-uart0 binding.

[Sebastian Andrzej Siewior]

The driver is using "sifive,fu540-c000-uart0" as a binding. The device
tree and documentation states "sifive,fu540-c000-uart" instead. This
means the binding is not matched and not used.

This did not cause any problems because the alternative binding, used in
the device tree, "sifive,uart0" is not handling the hardware any
different.

Align the binding in the driver with the documentation.

Signed-off-by: Sebastian Andrzej Siewior <bigeasy at linutronix.de>
---
On 2024-03-06 18:48:13 [-0800], Paul Walmsley wrote:
> On Mon, 4 Mar 2024, Conor Dooley wrote:
> > I suspect that the driver is what's incorrect, given there's little
> > value in putting the IP version in the SoC-specific compatible as it's
> > a fixed implementation. I'd change the driver to match the bindings.
> 
> Agreed

I didn't add any stable/ fixes tags as I guess there is no point in
backporting this.

> - Paul

 drivers/tty/serial/sifive.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/tty/serial/sifive.c b/drivers/tty/serial/sifive.c
index 0670fd9f84967..cbfce65c9d221 100644
--- a/drivers/tty/serial/sifive.c
+++ b/drivers/tty/serial/sifive.c
@@ -761,7 +761,7 @@ static int __init early_sifive_serial_setup(struct earlycon_device *dev,
 }
 
 OF_EARLYCON_DECLARE(sifive, "sifive,uart0", early_sifive_serial_setup);
-OF_EARLYCON_DECLARE(sifive, "sifive,fu540-c000-uart0",
+OF_EARLYCON_DECLARE(sifive, "sifive,fu540-c000-uart",
 		    early_sifive_serial_setup);
 #endif /* CONFIG_SERIAL_EARLYCON */
 
@@ -1032,7 +1032,7 @@ static DEFINE_SIMPLE_DEV_PM_OPS(sifive_uart_pm_ops, sifive_serial_suspend,
 				sifive_serial_resume);
 
 static const struct of_device_id sifive_serial_of_match[] = {
-	{ .compatible = "sifive,fu540-c000-uart0" },
+	{ .compatible = "sifive,fu540-c000-uart" },
 	{ .compatible = "sifive,uart0" },
 	{},
 };
-- 
2.43.0

Sebastian