[PATCH 3/4] tty: serial: bcm63xx_uart: add support for DT probing

[Florian Fainelli <f.fainelli@gmail.com>]

Add a matching table for the the bcm63xx_uart driver on the compatible
string "brcm,bcm63xx-uart" which covers all BCM63xx implementations.
Also make sure that we convert the id based on the uart aliases provided
by the relevant Device Tree.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
---
 drivers/tty/serial/bcm63xx_uart.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/drivers/tty/serial/bcm63xx_uart.c b/drivers/tty/serial/bcm63xx_uart.c
index 37e7e33..538e84c 100644
--- a/drivers/tty/serial/bcm63xx_uart.c
+++ b/drivers/tty/serial/bcm63xx_uart.c
@@ -31,6 +31,7 @@
 #include <linux/serial_core.h>
 #include <linux/serial_bcm63xx.h>
 #include <linux/io.h>
+#include <linux/of.h>
 
 #define BCM63XX_NR_UARTS	2
 
@@ -806,6 +807,9 @@ static int bcm_uart_probe(struct platform_device *pdev)
 	struct clk *clk;
 	int ret;
 
+	if (pdev->dev.of_node)
+		pdev->id = of_alias_get_id(pdev->dev.of_node, "uart");
+
 	if (pdev->id < 0 || pdev->id >= BCM63XX_NR_UARTS)
 		return -EINVAL;
 
@@ -857,6 +861,12 @@ static int bcm_uart_remove(struct platform_device *pdev)
 	return 0;
 }
 
+static const struct of_device_id bcm63xx_of_match[] = {
+	{ .compatible = "brcm,bcm63xx-uart" },
+	{ /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(of, bcm63xx_of_match);
+
 /*
  * platform driver stuff
  */
@@ -866,6 +876,7 @@ static struct platform_driver bcm_uart_platform_driver = {
 	.driver	= {
 		.owner = THIS_MODULE,
 		.name  = "bcm63xx_uart",
+		.of_match_table = bcm63xx_of_match,
 	},
 };
 
-- 
1.8.3.2