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@@ -28,6 +28,7 @@
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#include <linux/slab.h>
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#include <linux/bitops.h>
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#include <linux/input/mt.h>
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+#include <linux/of_gpio.h>
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/*
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* Mouse Mode: some panel may configure the controller to mouse mode,
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@@ -122,9 +123,17 @@ static irqreturn_t egalax_ts_interrupt(int irq, void *dev_id)
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/* wake up controller by an falling edge of interrupt gpio. */
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static int egalax_wake_up_device(struct i2c_client *client)
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{
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- int gpio = irq_to_gpio(client->irq);
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+ struct device_node *np = client->dev.of_node;
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+ int gpio;
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int ret;
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+ if (!np)
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+ return -ENODEV;
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+
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+ gpio = of_get_named_gpio(np, "wakeup-gpios", 0);
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+ if (!gpio_is_valid(gpio))
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+ return -ENODEV;
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+
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ret = gpio_request(gpio, "egalax_irq");
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if (ret < 0) {
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dev_err(&client->dev,
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@@ -181,7 +190,11 @@ static int __devinit egalax_ts_probe(struct i2c_client *client,
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ts->input_dev = input_dev;
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/* controller may be in sleep, wake it up. */
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- egalax_wake_up_device(client);
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+ error = egalax_wake_up_device(client);
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+ if (error) {
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+ dev_err(&client->dev, "Failed to wake up the controller\n");
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+ goto err_free_dev;
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+ }
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ret = egalax_firmware_version(client);
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if (ret < 0) {
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@@ -274,11 +287,17 @@ static int egalax_ts_resume(struct device *dev)
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static SIMPLE_DEV_PM_OPS(egalax_ts_pm_ops, egalax_ts_suspend, egalax_ts_resume);
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+static struct of_device_id egalax_ts_dt_ids[] = {
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+ { .compatible = "eeti,egalax_ts" },
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+ { /* sentinel */ }
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+};
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+
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static struct i2c_driver egalax_ts_driver = {
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.driver = {
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.name = "egalax_ts",
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.owner = THIS_MODULE,
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.pm = &egalax_ts_pm_ops,
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+ .of_match_table = of_match_ptr(egalax_ts_dt_ids),
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},
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.id_table = egalax_ts_id,
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.probe = egalax_ts_probe,
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