drm/i915/dsi: move wait_for_dsi_fifo_empty to intel_dsi.c
wait_for_dsi_fifo_empty can be static in intel_dsi.c. No functional
changes.
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-By: Shobhit Kumar <shobhit.kumar@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
diff --git a/drivers/gpu/drm/i915/intel_dsi.c b/drivers/gpu/drm/i915/intel_dsi.c
index dac4104..94865eb 100644
--- a/drivers/gpu/drm/i915/intel_dsi.c
+++ b/drivers/gpu/drm/i915/intel_dsi.c
@@ -42,6 +42,22 @@
},
};
+static void wait_for_dsi_fifo_empty(struct intel_dsi *intel_dsi)
+{
+ struct drm_encoder *encoder = &intel_dsi->base.base;
+ struct drm_device *dev = encoder->dev;
+ struct drm_i915_private *dev_priv = dev->dev_private;
+ struct intel_crtc *intel_crtc = to_intel_crtc(encoder->crtc);
+ enum port port = intel_dsi_pipe_to_port(intel_crtc->pipe);
+ u32 mask;
+
+ mask = LP_CTRL_FIFO_EMPTY | HS_CTRL_FIFO_EMPTY |
+ LP_DATA_FIFO_EMPTY | HS_DATA_FIFO_EMPTY;
+
+ if (wait_for((I915_READ(MIPI_GEN_FIFO_STAT(port)) & mask) == mask, 100))
+ DRM_ERROR("DPI FIFOs are not empty\n");
+}
+
static void band_gap_reset(struct drm_i915_private *dev_priv)
{
mutex_lock(&dev_priv->dpio_lock);