diff options
Diffstat (limited to 'drivers/gpio/gpiolib-cdev.c')
| -rw-r--r-- | drivers/gpio/gpiolib-cdev.c | 25 |
1 files changed, 15 insertions, 10 deletions
diff --git a/drivers/gpio/gpiolib-cdev.c b/drivers/gpio/gpiolib-cdev.c index cb4fb55e2696..13d83675bf4f 100644 --- a/drivers/gpio/gpiolib-cdev.c +++ b/drivers/gpio/gpiolib-cdev.c @@ -187,11 +187,11 @@ static long linehandle_set_config(struct linehandle_state *lh, if (lflags & GPIOHANDLE_REQUEST_OUTPUT) { int val = !!gcnf.default_values[i]; - ret = gpiod_direction_output(desc, val); + ret = gpiod_direction_output_nonotify(desc, val); if (ret) return ret; } else { - ret = gpiod_direction_input(desc); + ret = gpiod_direction_input_nonotify(desc); if (ret) return ret; } @@ -362,11 +362,11 @@ static int linehandle_create(struct gpio_device *gdev, void __user *ip) if (lflags & GPIOHANDLE_REQUEST_OUTPUT) { int val = !!handlereq.default_values[i]; - ret = gpiod_direction_output(desc, val); + ret = gpiod_direction_output_nonotify(desc, val); if (ret) goto out_free_lh; } else if (lflags & GPIOHANDLE_REQUEST_INPUT) { - ret = gpiod_direction_input(desc); + ret = gpiod_direction_input_nonotify(desc); if (ret) goto out_free_lh; } @@ -922,8 +922,13 @@ static int debounce_setup(struct line *line, unsigned int debounce_period_us) int ret, level, irq; char *label; - /* try hardware */ - ret = gpiod_set_debounce(line->desc, debounce_period_us); + /* + * Try hardware. Skip gpiod_set_config() to avoid emitting two + * CHANGED_CONFIG line state events. + */ + ret = gpio_do_set_config(line->desc, + pinconf_to_config_packed(PIN_CONFIG_INPUT_DEBOUNCE, + debounce_period_us)); if (!ret) { WRITE_ONCE(line->desc->debounce_period_us, debounce_period_us); return ret; @@ -1433,11 +1438,11 @@ static long linereq_set_config(struct linereq *lr, void __user *ip) int val = gpio_v2_line_config_output_value(&lc, i); edge_detector_stop(line); - ret = gpiod_direction_output(desc, val); + ret = gpiod_direction_output_nonotify(desc, val); if (ret) return ret; } else { - ret = gpiod_direction_input(desc); + ret = gpiod_direction_input_nonotify(desc); if (ret) return ret; @@ -1700,11 +1705,11 @@ static int linereq_create(struct gpio_device *gdev, void __user *ip) if (flags & GPIO_V2_LINE_FLAG_OUTPUT) { int val = gpio_v2_line_config_output_value(lc, i); - ret = gpiod_direction_output(desc, val); + ret = gpiod_direction_output_nonotify(desc, val); if (ret) goto out_free_linereq; } else if (flags & GPIO_V2_LINE_FLAG_INPUT) { - ret = gpiod_direction_input(desc); + ret = gpiod_direction_input_nonotify(desc); if (ret) goto out_free_linereq; |