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extcon: Remove optional print_state() function pointer of struct extcon_dev

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This patch removes the optional print_state() function pointer which included
in 'struct extcon_dev' because the extcon must maintain the consistent name
of extcon device on sysfs instead of inconsistent state of external connectors.

Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
This commit is contained in:
Chanwoo Choi
2015-06-11 20:17:02 +09:00
parent 85a77ff016
commit 2519b7650e
3 changed files with 0 additions and 31 deletions
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18
drivers/extcon/extcon-gpio.c
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@@ -65,22 +65,6 @@ static irqreturn_t gpio_irq_handler(int irq, void *dev_id)
return IRQ_HANDLED;
}
static ssize_t extcon_gpio_print_state(struct extcon_dev *edev, char *buf)
{
struct device *dev = edev->dev.parent;
struct gpio_extcon_data *extcon_data = dev_get_drvdata(dev);
const char *state;
if (extcon_get_state(edev))
state = extcon_data->state_on;
else
state = extcon_data->state_off;
if (state)
return sprintf(buf, "%s\n", state);
return -EINVAL;
}
static int gpio_extcon_probe(struct platform_device *pdev)
{
struct gpio_extcon_platform_data *pdata = dev_get_platdata(&pdev->dev);
@@ -110,8 +94,6 @@ static int gpio_extcon_probe(struct platform_device *pdev)
extcon_data->state_on = pdata->state_on;
extcon_data->state_off = pdata->state_off;
extcon_data->check_on_resume = pdata->check_on_resume;
if (pdata->state_on && pdata->state_off)
extcon_data->edev->print_state = extcon_gpio_print_state;
ret = devm_gpio_request_one(&pdev->dev, extcon_data->gpio, GPIOF_DIR_IN,
pdev->name);