Signed-off-by: Stephen Warren <[email protected]>
---
drivers/gpio/gpio-tegra.c | 23 ++++++++++++++++++++++-
1 files changed, 22 insertions(+), 1 deletions(-)
diff --git a/drivers/gpio/gpio-tegra.c b/drivers/gpio/gpio-tegra.c
index 4da4839..a95b23a 100644
--- a/drivers/gpio/gpio-tegra.c
+++ b/drivers/gpio/gpio-tegra.c
@@ -326,7 +326,6 @@ static struct irq_chip tegra_gpio_irq_chip = {
#endif
};
-
/* This lock class tells lockdep that GPIO irqs are in a different
* category than their parents, so it won't report false recursion.
*/
@@ -371,13 +370,35 @@ static int __init tegra_gpio_probe(struct platform_device
*pdev)
spin_lock_init(&bank->lvl_lock[j]);
}
+ if (pdev->dev.of_node != NULL) {
+ const __be32 *gpios;
+ u32 gpioslen;
+
+ gpios = of_get_property(pdev->dev.of_node,
+ "nvidia,enabled-gpios", &gpioslen);
+ if (gpios != NULL) {
+ gpioslen /= sizeof(*gpios);
+ for (i = 0; i < gpioslen; i++, gpios++) {
+ u32 gpio = be32_to_cpup(gpios);
+ dev_dbg(&pdev->dev, "Enabling GPIO %d\n", gpio);
+ tegra_gpio_enable(gpio);
+ }
+ }
+ }
+
return 0;
}
+static struct of_device_id tegra_gpio_of_match[] __devinitdata = {
+ { .compatible = "nvidia,tegra20-gpio", },
+ { },
+};
+
static struct platform_driver tegra_gpio_driver = {
.driver = {
.name = "tegra-gpio",
.owner = THIS_MODULE,
+ .of_match_table = tegra_gpio_of_match,
},
.probe = tegra_gpio_probe,
};
--
1.7.0.4
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