* assume we are in input mode after this.
*/
if (guard.gc->direction_input) {
- ret = guard.gc->direction_input(guard.gc,
- gpio_chip_hwgpio(desc));
+ ret = gpiochip_direction_input(guard.gc,
+ gpio_chip_hwgpio(desc));
} else if (guard.gc->get_direction) {
- ret = gpiochip_get_direction(guard.gc, gpio_chip_hwgpio(desc));
- if (ret < 0)
- return ret;
- dir = guard.gc->get_direction(guard.gc,
- gpio_chip_hwgpio(desc));
++ dir = gpiochip_get_direction(guard.gc, gpio_chip_hwgpio(desc));
+ if (dir < 0)
+ return dir;
- if (ret != GPIO_LINE_DIRECTION_IN) {
+ if (dir != GPIO_LINE_DIRECTION_IN) {
gpiod_warn(desc,
"%s: missing direction_input() operation and line is output\n",
__func__);
return ret;
}
+static int gpiochip_set(struct gpio_chip *gc, unsigned int offset, int value)
+{
+ int ret;
+
+ lockdep_assert_held(&gc->gpiodev->srcu);
+
+ if (WARN_ON(unlikely(!gc->set && !gc->set_rv)))
+ return -EOPNOTSUPP;
+
+ if (gc->set_rv) {
+ ret = gc->set_rv(gc, offset, value);
+ if (ret > 0)
+ ret = -EBADE;
+
+ return ret;
+ }
+
+ gc->set(gc, offset, value);
+ return 0;
+}
+
static int gpiod_direction_output_raw_commit(struct gpio_desc *desc, int value)
{
- int val = !!value, ret = 0;
+ int val = !!value, ret = 0, dir;
CLASS(gpio_chip_guard, guard)(desc);
if (!guard.gc)
} else {
/* Check that we are in output mode if we can */
if (guard.gc->get_direction) {
- ret = gpiochip_get_direction(guard.gc,
- dir = guard.gc->get_direction(guard.gc,
- gpio_chip_hwgpio(desc));
++ dir = gpiochip_get_direction(guard.gc,
+ gpio_chip_hwgpio(desc));
- if (ret < 0)
- return ret;
+ if (dir < 0)
+ return dir;
- if (ret != GPIO_LINE_DIRECTION_OUT) {
+ if (dir != GPIO_LINE_DIRECTION_OUT) {
gpiod_warn(desc,
"%s: missing direction_output() operation\n",
__func__);