@@ -763,7 +763,7 @@ static inline int picolcd_init_framebuffer(struct picolcd_data *data)
{
return 0;
}
-static void picolcd_exit_framebuffer(struct picolcd_data *data)
+static inline void picolcd_exit_framebuffer(struct picolcd_data *data)
{
}
#define picolcd_fbinfo(d) NULL
@@ -852,6 +852,18 @@ static inline int picolcd_resume_backlight(struct picolcd_data *data)
return picolcd_set_brightness(data->backlight);
}
+#ifdef CONFIG_PM
+static void picolcd_suspend_backlight(struct picolcd_data *data)
+{
+ int bl_power = data->lcd_power;
+ if (!data->backlight)
+ return;
+
+ data->backlight->props.power = FB_BLANK_POWERDOWN;
+ picolcd_set_brightness(data->backlight);
+ data->lcd_power = data->backlight->props.power = bl_power;
+}
+#endif /* CONFIG_PM */
#else
static inline int picolcd_init_backlight(struct picolcd_data *data,
struct hid_report *report)
@@ -865,6 +877,9 @@ static inline int picolcd_resume_backlight(struct picolcd_data *data)
{
return 0;
}
+static inline void picolcd_suspend_backlight(struct picolcd_data *data)
+{
+}
#endif /* CONFIG_HID_PICOLCD_BACKLIGHT */
#ifdef CONFIG_HID_PICOLCD_LCD
@@ -1098,7 +1113,7 @@ static inline int picolcd_init_leds(struct picolcd_data *data,
{
return 0;
}
-static void picolcd_exit_leds(struct picolcd_data *data)
+static inline void picolcd_exit_leds(struct picolcd_data *data)
{
}
static inline int picolcd_leds_set(struct picolcd_data *data)
@@ -2214,9 +2229,18 @@ static void picolcd_exit_devfs(struct picolcd_data *data)
mutex_destroy(&data->mutex_flash);
}
#else
-#define picolcd_debug_raw_event(data, hdev, report, raw_data, size)
-#define picolcd_init_devfs(data, eeprom_r, eeprom_w, flash_r, flash_w, reset)
-static void picolcd_exit_devfs(struct picolcd_data *data)
+static inline void picolcd_debug_raw_event(struct picolcd_data *data,
+ struct hid_device *hdev, struct hid_report *report,
+ u8 *raw_data, int size)
+{
+}
+static inline void picolcd_init_devfs(struct picolcd_data *data,
+ struct hid_report *eeprom_r, struct hid_report *eeprom_w,
+ struct hid_report *flash_r, struct hid_report *flash_w,
+ struct hid_report *reset)
+{
+}
+static inline void picolcd_exit_devfs(struct picolcd_data *data)
{
}
#endif /* CONFIG_DEBUG_FS */
@@ -2259,6 +2283,46 @@ static int picolcd_raw_event(struct hid_device *hdev,
return 1;
}
+#ifdef CONFIG_PM
+static int picolcd_suspend(struct hid_device *hdev, pm_message_t message)
+{
+ if (message.event & PM_EVENT_AUTO)
+ return 0;
+
+ picolcd_suspend_backlight(hid_get_drvdata(hdev));
+ dbg_hid(PICOLCD_NAME " device ready for suspend\n");
+ return 0;
+}
+
+static int picolcd_resume(struct hid_device *hdev)
+{
+ int ret;
+ ret = picolcd_resume_backlight(hid_get_drvdata(hdev));
+ if (ret)
+ dbg_hid(PICOLCD_NAME " restoring backlight failed: %d\n", ret);
+ return 0;
+}
+
+static int picolcd_reset_resume(struct hid_device *hdev)
+{
+ int ret;
+ ret = picolcd_reset(hdev);
+ if (ret)
+ dbg_hid(PICOLCD_NAME " resetting our device failed: %d\n", ret);
+ ret = picolcd_fb_reset(hid_get_drvdata(hdev), 0);
+ if (ret)
+ dbg_hid(PICOLCD_NAME " restoring framebuffer content failed: %d\n", ret);
+ ret = picolcd_resume_lcd(hid_get_drvdata(hdev));
+ if (ret)
+ dbg_hid(PICOLCD_NAME " restoring lcd failed: %d\n", ret);
+ ret = picolcd_resume_backlight(hid_get_drvdata(hdev));
+ if (ret)
+ dbg_hid(PICOLCD_NAME " restoring backlight failed: %d\n", ret);
+ picolcd_leds_set(hid_get_drvdata(hdev));
+ return 0;
+}
+#endif
+
/* initialize keypad input device */
static int picolcd_init_keys(struct picolcd_data *data,
struct hid_report *report)
@@ -2544,6 +2608,11 @@ static struct hid_driver picolcd_driver = {
.probe = picolcd_probe,
.remove = picolcd_remove,
.raw_event = picolcd_raw_event,
+#ifdef CONFIG_PM
+ .suspend = picolcd_suspend,
+ .resume = picolcd_resume,
+ .reset_resume = picolcd_reset_resume,
+#endif
};
static int __init picolcd_init(void)