Signed-off-by: Xiong Zhang <xiong.y.zhang@xxxxxxxxx>
---
drivers/gpu/drm/i915/intel_drv.h | 1 +
drivers/gpu/drm/i915/intel_panel.c | 10 ++++++++++
2 files changed, 11 insertions(+)
diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h
index 47cef0e..f57a0b4 100644
--- a/drivers/gpu/drm/i915/intel_drv.h
+++ b/drivers/gpu/drm/i915/intel_drv.h
@@ -1287,6 +1287,7 @@ int intel_panel_init(struct intel_panel *panel,
void intel_panel_fini(struct intel_panel *panel);
void intel_fixed_panel_mode(const struct drm_display_mode *fixed_mode,
struct drm_display_mode *adjusted_mode);
+bool intel_panel_scale_none(struct intel_panel *panel);
void intel_pch_panel_fitting(struct intel_crtc *crtc,
struct intel_crtc_state *pipe_config,
int fitting_mode);
diff --git a/drivers/gpu/drm/i915/intel_panel.c b/drivers/gpu/drm/i915/intel_panel.c
index e2ab3f6..4a573ac 100644
--- a/drivers/gpu/drm/i915/intel_panel.c
+++ b/drivers/gpu/drm/i915/intel_panel.c
@@ -46,6 +46,16 @@ intel_fixed_panel_mode(const struct drm_display_mode *fixed_mode,
drm_mode_set_crtcinfo(adjusted_mode, 0);
}
+bool
+intel_panel_scale_none(struct intel_panel *panel)
+{
+ if (panel->fitting_mode == DRM_MODE_SCALE_NONE ||
+ panel->fixed_mode == NULL)
+ return true;
+ else
+ return false;
+}
+
/**
* intel_find_panel_downclock - find the reduced downclock for LVDS in EDID
* @dev: drm device
--
1.8.2.1
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