Add the call back for MIPI reset sequence in drm for
fine grained panel control. This is needed to
reset the panel based on the panel schematics.
Signed-off-by: Uma Shankar <uma.shankar@xxxxxxxxx>
---
include/drm/drm_panel.h | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/include/drm/drm_panel.h b/include/drm/drm_panel.h
index 515595b..c49358e 100644
--- a/include/drm/drm_panel.h
+++ b/include/drm/drm_panel.h
@@ -69,6 +69,7 @@ struct drm_panel_funcs {
int (*disable)(struct drm_panel *panel);
int (*unprepare)(struct drm_panel *panel);
int (*prepare)(struct drm_panel *panel);
+ int (*reset)(struct drm_panel *panel);
int (*power_on)(struct drm_panel *panel);
int (*power_off)(struct drm_panel *panel);
int (*enable)(struct drm_panel *panel);
@@ -132,6 +133,14 @@ static inline int drm_panel_disable(struct drm_panel *panel)
return panel ? -ENOSYS : -EINVAL;
}
+static inline int drm_panel_reset(struct drm_panel *panel)
+{
+ if (panel && panel->funcs && panel->funcs->reset)
+ return panel->funcs->reset(panel);
+
+ return panel ? -ENOSYS : -EINVAL;
+}
+
/**
* drm_panel_prepare - power on a panel
* @panel: DRM panel
--
1.9.1
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