gpio: tps65910: dt: process gpio specific device node info
Parse the gpio specific device node information locally.
Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
diff --git a/drivers/gpio/gpio-tps65910.c b/drivers/gpio/gpio-tps65910.c
index af6dc83..c1ad288 100644
--- a/drivers/gpio/gpio-tps65910.c
+++ b/drivers/gpio/gpio-tps65910.c
@@ -20,6 +20,7 @@
#include <linux/i2c.h>
#include <linux/platform_device.h>
#include <linux/mfd/tps65910.h>
+#include <linux/of_device.h>
struct tps65910_gpio {
struct gpio_chip gpio_chip;
@@ -81,6 +82,37 @@
GPIO_CFG_MASK);
}
+#ifdef CONFIG_OF
+static struct tps65910_board *tps65910_parse_dt_for_gpio(struct device *dev,
+ struct tps65910 *tps65910, int chip_ngpio)
+{
+ struct tps65910_board *tps65910_board = tps65910->of_plat_data;
+ unsigned int prop_array[TPS6591X_MAX_NUM_GPIO];
+ int ngpio = min(chip_ngpio, TPS6591X_MAX_NUM_GPIO);
+ int ret;
+ int idx;
+
+ tps65910_board->gpio_base = -1;
+ ret = of_property_read_u32_array(tps65910->dev->of_node,
+ "ti,en-gpio-sleep", prop_array, ngpio);
+ if (ret < 0) {
+ dev_dbg(dev, "ti,en-gpio-sleep not specified\n");
+ return tps65910_board;
+ }
+
+ for (idx = 0; idx < ngpio; idx++)
+ tps65910_board->en_gpio_sleep[idx] = (prop_array[idx] != 0);
+
+ return tps65910_board;
+}
+#else
+static struct tps65910_board *tps65910_parse_dt_for_gpio(struct device *dev,
+ struct tps65910 *tps65910, int chip_ngpio)
+{
+ return NULL;
+}
+#endif
+
static int __devinit tps65910_gpio_probe(struct platform_device *pdev)
{
struct tps65910 *tps65910 = dev_get_drvdata(pdev->dev.parent);
@@ -122,6 +154,10 @@
else
tps65910_gpio->gpio_chip.base = -1;
+ if (!pdata && tps65910->dev->of_node)
+ pdata = tps65910_parse_dt_for_gpio(&pdev->dev, tps65910,
+ tps65910_gpio->gpio_chip.ngpio);
+
if (!pdata)
goto skip_init;