diff options
Diffstat (limited to 'drivers/input')
| -rw-r--r-- | drivers/input/touchscreen/edt-ft5x06.c | 129 |
1 files changed, 38 insertions, 91 deletions
diff --git a/drivers/input/touchscreen/edt-ft5x06.c b/drivers/input/touchscreen/edt-ft5x06.c index 48de1e8b3c93..5738722873bb 100644 --- a/drivers/input/touchscreen/edt-ft5x06.c +++ b/drivers/input/touchscreen/edt-ft5x06.c @@ -34,8 +34,7 @@ #include <linux/delay.h> #include <linux/debugfs.h> #include <linux/slab.h> -#include <linux/gpio.h> -#include <linux/of_gpio.h> +#include <linux/gpio/consumer.h> #include <linux/input/mt.h> #include <linux/input/touchscreen.h> #include <linux/input/edt-ft5x06.h> @@ -91,9 +90,9 @@ struct edt_ft5x06_ts_data { u16 num_x; u16 num_y; - int reset_pin; - int irq_pin; - int wake_pin; + struct gpio_desc *reset_gpio; + struct gpio_desc *wake_gpio; + struct gpio_desc *irq_gpio; #if defined(CONFIG_DEBUG_FS) struct dentry *debug_dir; @@ -752,45 +751,6 @@ edt_ft5x06_ts_teardown_debugfs(struct edt_ft5x06_ts_data *tsdata) #endif /* CONFIG_DEBUGFS */ -static int edt_ft5x06_ts_reset(struct i2c_client *client, - struct edt_ft5x06_ts_data *tsdata) -{ - int error; - - if (gpio_is_valid(tsdata->wake_pin)) { - error = devm_gpio_request_one(&client->dev, - tsdata->wake_pin, GPIOF_OUT_INIT_LOW, - "edt-ft5x06 wake"); - if (error) { - dev_err(&client->dev, - "Failed to request GPIO %d as wake pin, error %d\n", - tsdata->wake_pin, error); - return error; - } - - msleep(5); - gpio_set_value(tsdata->wake_pin, 1); - } - if (gpio_is_valid(tsdata->reset_pin)) { - /* this pulls reset down, enabling the low active reset */ - error = devm_gpio_request_one(&client->dev, - tsdata->reset_pin, GPIOF_OUT_INIT_LOW, - "edt-ft5x06 reset"); - if (error) { - dev_err(&client->dev, - "Failed to request GPIO %d as reset pin, error %d\n", - tsdata->reset_pin, error); - return error; - } - - msleep(5); - gpio_set_value(tsdata->reset_pin, 1); - msleep(300); - } - - return 0; -} - static int edt_ft5x06_ts_identify(struct i2c_client *client, struct edt_ft5x06_ts_data *tsdata, char *fw_version) @@ -931,30 +891,6 @@ edt_ft5x06_ts_set_regs(struct edt_ft5x06_ts_data *tsdata) } } -#ifdef CONFIG_OF -static int edt_ft5x06_i2c_ts_probe_dt(struct device *dev, - struct edt_ft5x06_ts_data *tsdata) -{ - struct device_node *np = dev->of_node; - - /* - * irq_pin is not needed for DT setup. - * irq is associated via 'interrupts' property in DT - */ - tsdata->irq_pin = -EINVAL; - tsdata->reset_pin = of_get_named_gpio(np, "reset-gpios", 0); - tsdata->wake_pin = of_get_named_gpio(np, "wake-gpios", 0); - - return 0; -} -#else -static inline int edt_ft5x06_i2c_ts_probe_dt(struct device *dev, - struct edt_ft5x06_ts_data *tsdata) -{ - return -ENODEV; -} -#endif - static int edt_ft5x06_ts_probe(struct i2c_client *client, const struct i2c_device_id *id) { @@ -973,32 +909,42 @@ static int edt_ft5x06_ts_probe(struct i2c_client *client, return -ENOMEM; } - if (!pdata) { - error = edt_ft5x06_i2c_ts_probe_dt(&client->dev, tsdata); - if (error) { - dev_err(&client->dev, - "DT probe failed and no platform data present\n"); - return error; - } - } else { - tsdata->reset_pin = pdata->reset_pin; - tsdata->irq_pin = pdata->irq_pin; - tsdata->wake_pin = -EINVAL; + tsdata->reset_gpio = devm_gpiod_get_optional(&client->dev, + "reset", GPIOD_OUT_HIGH); + if (IS_ERR(tsdata->reset_gpio)) { + error = PTR_ERR(tsdata->reset_gpio); + dev_err(&client->dev, + "Failed to request GPIO reset pin, error %d\n", error); + return error; } - error = edt_ft5x06_ts_reset(client, tsdata); - if (error) + tsdata->wake_gpio = devm_gpiod_get_optional(&client->dev, + "wake", GPIOD_OUT_LOW); + if (IS_ERR(tsdata->wake_gpio)) { + error = PTR_ERR(tsdata->wake_gpio); + dev_err(&client->dev, + "Failed to request GPIO wake pin, error %d\n", error); return error; + } - if (gpio_is_valid(tsdata->irq_pin)) { - error = devm_gpio_request_one(&client->dev, tsdata->irq_pin, - GPIOF_IN, "edt-ft5x06 irq"); - if (error) { - dev_err(&client->dev, - "Failed to request GPIO %d, error %d\n", - tsdata->irq_pin, error); - return error; - } + tsdata->irq_gpio = devm_gpiod_get_optional(&client->dev, + "irq", GPIOD_IN); + if (IS_ERR(tsdata->irq_gpio)) { + error = PTR_ERR(tsdata->irq_gpio); + dev_err(&client->dev, + "Failed to request GPIO irq pin, error %d\n", error); + return error; + } + + if (tsdata->wake_gpio) { + usleep_range(5000, 6000); + gpiod_set_value_cansleep(tsdata->wake_gpio, 1); + } + + if (tsdata->reset_gpio) { + usleep_range(5000, 6000); + gpiod_set_value_cansleep(tsdata->reset_gpio, 0); + msleep(300); } input = devm_input_allocate_device(&client->dev); @@ -1074,7 +1020,8 @@ static int edt_ft5x06_ts_probe(struct i2c_client *client, dev_dbg(&client->dev, "EDT FT5x06 initialized: IRQ %d, WAKE pin %d, Reset pin %d.\n", - client->irq, tsdata->wake_pin, tsdata->reset_pin); + client->irq, desc_to_gpio(tsdata->wake_gpio), + desc_to_gpio(tsdata->reset_gpio)); return 0; |