[PATCH tty-next v2 3/4] tty: serial: bcm63xx_uart: add support for DT probing
From: Florian Fainelli <f.fainelli@gmail.com>
Date: 2014-02-20 18:15:53
Also in:
linux-serial
Subsystem:
the rest, tty layer and serial drivers · Maintainers:
Linus Torvalds, Greg Kroah-Hartman, Jiri Slaby
Add a matching table for the the bcm63xx_uart driver on the compatible string "brcm,bcm6345-uart" which covers all BCM63xx implementations and reflects the fact that this block was first introduced with the BCM6345 SoC. 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> --- Changes in v2: - match on the compatible property "brcm,bcm6345-uart" as suggested 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..a47421e 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,bcm6345-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