The irq_to_gpio() is old, most platforms use GENERIC_GPIO framework and
don't support this API anymore.
The i.MX6q sabrelite platform equips an egalax touchscreen controller,
and this platform already transfered to GENERIC_GPIO framework, to
support this driver, we use a more generic way to get gpio.
Signed-off-by: Hui Wang <jason77.wang@xxxxxxxxx>
---
drivers/input/touchscreen/egalax_ts.c | 12 ++++++++++--
1 files changed, 10 insertions(+), 2 deletions(-)
diff --git a/drivers/input/touchscreen/egalax_ts.c b/drivers/input/touchscreen/egalax_ts.c
index 70524dd..b94eb50 100644
--- a/drivers/input/touchscreen/egalax_ts.c
+++ b/drivers/input/touchscreen/egalax_ts.c
@@ -28,6 +28,7 @@
#include <linux/slab.h>
#include <linux/bitops.h>
#include <linux/input/mt.h>
+#include <linux/of_gpio.h>
/*
* Mouse Mode: some panel may configure the controller to mouse mode,
@@ -122,8 +123,15 @@ static irqreturn_t egalax_ts_interrupt(int irq, void *dev_id)
/* wake up controller by an falling edge of interrupt gpio. */
static int egalax_wake_up_device(struct i2c_client *client)
{
- int gpio = irq_to_gpio(client->irq);
- int ret;
+ struct device_node *np = client->dev.of_node;
+ int gpio, ret;
+
+ if (!np)
+ return -ENODEV;
+
+ gpio = of_get_named_gpio(np, "irq-gpio", 0);
+ if (!gpio_is_valid(gpio))
+ return -ENODEV;
ret = gpio_request(gpio, "egalax_irq");
if (ret < 0) {
--
1.7.6
--
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