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authorChanwoo Choi <cw00.choi@samsung.com>2015-06-11 20:17:02 +0900
committerChanwoo Choi <cw00.choi@samsung.com>2015-08-10 11:48:55 +0900
commit2519b7650e99d90643a7a20d623513de9c95a817 (patch)
tree1bd74e01d8e4d7f2b23725db9d0fb480212fcd17
parent85a77ff0160ab0a70eb4e8b14200e29b4d35c355 (diff)
extcon: Remove optional print_state() function pointer of struct extcon_dev
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>
-rw-r--r--drivers/extcon/extcon-gpio.c18
-rw-r--r--drivers/extcon/extcon.c8
-rw-r--r--include/linux/extcon.h5
3 files changed, 0 insertions, 31 deletions
diff --git a/drivers/extcon/extcon-gpio.c b/drivers/extcon/extcon-gpio.c
index 355459a54e8b..57c24fa52edb 100644
--- a/drivers/extcon/extcon-gpio.c
+++ b/drivers/extcon/extcon-gpio.c
@@ -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);
diff --git a/drivers/extcon/extcon.c b/drivers/extcon/extcon.c
index 43b57b02d050..d1fb5b4d024a 100644
--- a/drivers/extcon/extcon.c
+++ b/drivers/extcon/extcon.c
@@ -172,14 +172,6 @@ static ssize_t state_show(struct device *dev, struct device_attribute *attr,
int i, count = 0;
struct extcon_dev *edev = dev_get_drvdata(dev);
- if (edev->print_state) {
- int ret = edev->print_state(edev, buf);
-
- if (ret >= 0)
- return ret;
- /* Use default if failed */
- }
-
if (edev->max_supported == 0)
return sprintf(buf, "%u\n", edev->state);
diff --git a/include/linux/extcon.h b/include/linux/extcon.h
index 1656c98175f5..c0f8c4fc5d45 100644
--- a/include/linux/extcon.h
+++ b/include/linux/extcon.h
@@ -75,8 +75,6 @@ struct extcon_cable;
* be attached simulataneously. {0x7, 0} is equivalent to
* {0x3, 0x6, 0x5, 0}. If it is {0xFFFFFFFF, 0}, there
* can be no simultaneous connections.
- * @print_state: An optional callback to override the method to print the
- * status of the extcon device.
* @dev: Device of this extcon.
* @state: Attach/detach state of this extcon. Do not provide at
* register-time.
@@ -100,9 +98,6 @@ struct extcon_dev {
const unsigned int *supported_cable;
const u32 *mutually_exclusive;
- /* Optional callbacks to override class functions */
- ssize_t (*print_state)(struct extcon_dev *edev, char *buf);
-
/* Internal data. Please do not set. */
struct device dev;
struct raw_notifier_head *nh;