serial: stm_serial: Add devicetree support

This adds device tree support for the stm serial driver. This
driver really is a AMBA primecell, so the amba-pl011 could be
used. However, the current code tries to get the apb_pclk before
the clocks are registered, so this does not work. Use the stm
driver instead until a solution is found.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

1 files changed, 9 insertions, 0 deletions

diff --git a/drivers/serial/stm-serial.c b/drivers/serial/stm-serial.c
index e5f57dc6e7..8bb242b14d 100644
--- a/drivers/serial/stm-serial.c
+++ b/drivers/serial/stm-serial.c
@@ -189,9 +189,18 @@ static void stm_serial_remove(struct device_d *dev)
 	free(priv);
 }
 
+static __maybe_unused struct of_device_id stm_serial_dt_ids[] = {
+	{
+		.compatible = "arm,pl011",
+	}, {
+		/* sentinel */
+	}
+};
+
 static struct driver_d stm_serial_driver = {
         .name   = "stm_serial",
         .probe  = stm_serial_probe,
 	.remove = stm_serial_remove,
+	.of_compatible = DRV_OF_COMPAT(stm_serial_dt_ids),
 };
 console_platform_driver(stm_serial_driver);