[Intel-gfx] [PATCH 3/4] drm/i915: ELiminate intel_pipe_to_cpu_transcoder() from assert_fdi_tx()

[Ville Syrjala]

From: Ville Syrjälä <ville.syrjala at linux.intel.com>

Let's start to eliminate intel_pipe_to_cpu_transcoder() so that
we can get rid of one more crtc->config usage (which we will want
to nuke as well).

In the case of assert_fdi_tx() we know that we're never
dealing with the EDP transcoder so we can simply replace
this with a cast.

Signed-off-by: Ville Syrjälä <ville.syrjala at linux.intel.com>
---
 drivers/gpu/drm/i915/display/intel_display.c | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
index e7e5497e6f2e..cabd88337822 100644
--- a/drivers/gpu/drm/i915/display/intel_display.c
+++ b/drivers/gpu/drm/i915/display/intel_display.c
@@ -1141,11 +1141,15 @@ static void assert_fdi_tx(struct drm_i915_private *dev_priv,
 			  enum pipe pipe, bool state)
 {
 	bool cur_state;
-	enum transcoder cpu_transcoder = intel_pipe_to_cpu_transcoder(dev_priv,
-								      pipe);
 
 	if (HAS_DDI(dev_priv)) {
-		/* DDI does not have a specific FDI_TX register */
+		/*
+		 * DDI does not have a specific FDI_TX register.
+		 *
+		 * FDI is never hooked fed from EDP transcoder
+		 * so pipe->transcoder cast is fine here.
+		 */
+		enum transcoder cpu_transcoder = (enum transcoder)pipe;
 		u32 val = I915_READ(TRANS_DDI_FUNC_CTL(cpu_transcoder));
 		cur_state = !!(val & TRANS_DDI_FUNC_ENABLE);
 	} else {
-- 
2.23.0