drm/i915: enable and disable DDI_FUNC_CTL at the right time
And the right time is exactly after/before changing PIPE_CONF. See the
documentation about the mode set sequence.
This code is not inside any encoder-specific callback because
DDI_FUNC_CTL is part of the pipe, so it is used by all encoders.
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h
index 57566b7..0253bb4 100644
--- a/drivers/gpu/drm/i915/intel_drv.h
+++ b/drivers/gpu/drm/i915/intel_drv.h
@@ -581,5 +581,8 @@
struct drm_display_mode *mode,
struct drm_display_mode *adjusted_mode);
extern void intel_ddi_pll_init(struct drm_device *dev);
+extern void intel_ddi_enable_pipe_func(struct drm_crtc *crtc);
+extern void intel_ddi_disable_pipe_func(struct drm_i915_private *dev_priv,
+ enum pipe pipe);
#endif /* __INTEL_DRV_H__ */