drm/i915: Stop using encoder->type in intel_ddi_enable_transcoder_func()

intel_ddi_enable_transcoder_func() already has the crtc state so we can
use that instead of the untrustworthy encoder->type.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20171019133721.11794-5-ville.syrjala@linux.intel.com
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>

diff --git a/drivers/gpu/drm/i915/intel_ddi.c b/drivers/gpu/drm/i915/intel_ddi.c
index 0595824..c721775 100644 (file)
--- a/drivers/gpu/drm/i915/intel_ddi.c
+++ b/drivers/gpu/drm/i915/intel_ddi.c
@@ -1550,7 +1550,6 @@ void intel_ddi_enable_transcoder_func(const struct intel_crtc_state *crtc_state)
        enum pipe pipe = crtc->pipe;
        enum transcoder cpu_transcoder = crtc_state->cpu_transcoder;
        enum port port = intel_ddi_get_encoder_port(encoder);
-       int type = encoder->type;
        uint32_t temp;
 
        /* Enable TRANS_DDI_FUNC_CTL for the pipe to work in HDMI mode */
@@ -1605,7 +1604,7 @@ void intel_ddi_enable_transcoder_func(const struct intel_crtc_state *crtc_state)
                }
        }
 
-       if (type == INTEL_OUTPUT_HDMI) {
+       if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_HDMI)) {
                if (crtc_state->has_hdmi_sink)
                        temp |= TRANS_DDI_MODE_SELECT_HDMI;
                else
@@ -1615,19 +1614,15 @@ void intel_ddi_enable_transcoder_func(const struct intel_crtc_state *crtc_state)
                        temp |= TRANS_DDI_HDMI_SCRAMBLING_MASK;
                if (crtc_state->hdmi_high_tmds_clock_ratio)
                        temp |= TRANS_DDI_HIGH_TMDS_CHAR_RATE;
-       } else if (type == INTEL_OUTPUT_ANALOG) {
+       } else if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_ANALOG)) {
                temp |= TRANS_DDI_MODE_SELECT_FDI;
                temp |= (crtc_state->fdi_lanes - 1) << 1;
-       } else if (type == INTEL_OUTPUT_DP ||
-                  type == INTEL_OUTPUT_EDP) {
-               temp |= TRANS_DDI_MODE_SELECT_DP_SST;
-               temp |= DDI_PORT_WIDTH(crtc_state->lane_count);
-       } else if (type == INTEL_OUTPUT_DP_MST) {
+       } else if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_DP_MST)) {
                temp |= TRANS_DDI_MODE_SELECT_DP_MST;
                temp |= DDI_PORT_WIDTH(crtc_state->lane_count);
        } else {
-               WARN(1, "Invalid encoder type %d for pipe %c\n",
-                    encoder->type, pipe_name(pipe));
+               temp |= TRANS_DDI_MODE_SELECT_DP_SST;
+               temp |= DDI_PORT_WIDTH(crtc_state->lane_count);
        }
 
        I915_WRITE(TRANS_DDI_FUNC_CTL(cpu_transcoder), temp);