[PATCH 5/6] tty: of_serial: Add pinctrl support

[maxime.ripard@free-electrons.com (Maxime Ripard)]

Use pinctrl to configure the SoCs pins directly from the driver.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Cc: Alan Cox <alan@linux.intel.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: linux-serial at vger.kernel.org
---
 drivers/tty/serial/of_serial.c |    7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/drivers/tty/serial/of_serial.c b/drivers/tty/serial/of_serial.c
index df443b9..f66bdab 100644
--- a/drivers/tty/serial/of_serial.c
+++ b/drivers/tty/serial/of_serial.c
@@ -13,6 +13,7 @@
 #include <linux/module.h>
 #include <linux/slab.h>
 #include <linux/delay.h>
+#include <linux/pinctrl/consumer.h>
 #include <linux/serial_core.h>
 #include <linux/serial_8250.h>
 #include <linux/serial_reg.h>
@@ -54,6 +55,7 @@ static int __devinit of_platform_serial_setup(struct platform_device *ofdev,
 					int type, struct uart_port *port)
 {
 	struct resource resource;
+	struct pinctrl *pinctrl;
 	struct device_node *np = ofdev->dev.of_node;
 	u32 clk, spd, prop;
 	int ret;
@@ -73,6 +75,11 @@ static int __devinit of_platform_serial_setup(struct platform_device *ofdev,
 		return ret;
 	}
 
+	pinctrl = devm_pinctrl_get_select_default(&ofdev->dev);
+	if (IS_ERR(pinctrl))
+		dev_warn(&ofdev->dev,
+			"pins are not configured from the driver\n");
+
 	spin_lock_init(&port->lock);
 	port->mapbase = resource.start;
 
-- 
1.7.9.5