gpio/tegra: add devicetree support

Add support for decoding gpios from the device tree

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Acked-by: Olof Johansson <olof@lixom.net>

1 files changed, 10 insertions, 0 deletions

diff --git a/drivers/gpio/gpio-tegra.c b/drivers/gpio/gpio-tegra.c
index 919d63837736..13afb881ffc3 100644
--- a/drivers/gpio/gpio-tegra.c
+++ b/drivers/gpio/gpio-tegra.c
@@ -23,6 +23,7 @@
 
 #include <linux/io.h>
 #include <linux/gpio.h>
+#include <linux/of.h>
 
 #include <asm/mach/irq.h>
 
@@ -340,6 +341,15 @@ static int __init tegra_gpio_init(void)
                 }
         }
 
+#ifdef CONFIG_OF_GPIO
+        /*
+         * This isn't ideal, but it gets things hooked up until this
+         * driver is converted into a platform_device
+         */
+        tegra_gpio_chip.of_node = of_find_compatible_node(NULL, NULL,
+                                                "nvidia,tegra250-gpio");
+#endif /* CONFIG_OF_GPIO */
+
         gpiochip_add(&tegra_gpio_chip);
 
         for (i = INT_GPIO_BASE; i < (INT_GPIO_BASE + TEGRA_NR_GPIOS); i++) {