drm/i915: Add new CRC sources

On pre-gen5 and vlv we can't use the pipe source when TV-out or a DP
port is connected to the pipe. Hence we need to expose new CRC
sources.

Also simplify the existing pipe source platform code a bit by
rejecting all unhandled sources by default.

Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

2 files changed, 15 insertions, 6 deletions

diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
index 061182a0ce1b..d7ee350fc6a3 100644
--- a/drivers/gpu/drm/i915/i915_debugfs.c
+++ b/drivers/gpu/drm/i915/i915_debugfs.c
@@ -1915,6 +1915,10 @@ static const char * const pipe_crc_sources[] = {
         "plane2",
         "pf",
         "pipe",
+        "TV",
+        "DP-B",
+        "DP-C",
+        "DP-D",
 };
 
 static const char *pipe_crc_source_name(enum intel_pipe_crc_source source)
@@ -1953,14 +1957,14 @@ static int ilk_pipe_crc_ctl_reg(enum intel_pipe_crc_source source,
         case INTEL_PIPE_CRC_SOURCE_PLANE2:
                 *val = PIPE_CRC_ENABLE | PIPE_CRC_SOURCE_SPRITE_ILK;
                 break;
-        case INTEL_PIPE_CRC_SOURCE_PF:
-                return -EINVAL;
         case INTEL_PIPE_CRC_SOURCE_PIPE:
                 *val = PIPE_CRC_ENABLE | PIPE_CRC_SOURCE_PIPE_ILK;
                 break;
-        default:
+        case INTEL_PIPE_CRC_SOURCE_NONE:
                 *val = 0;
                 break;
+        default:
+                return -EINVAL;
         }
 
         return 0;
@@ -1979,11 +1983,11 @@ static int ivb_pipe_crc_ctl_reg(enum intel_pipe_crc_source source,
         case INTEL_PIPE_CRC_SOURCE_PF:
                 *val = PIPE_CRC_ENABLE | PIPE_CRC_SOURCE_PF_IVB;
                 break;
-        case INTEL_PIPE_CRC_SOURCE_PIPE:
-                return -EINVAL;
-        default:
+        case INTEL_PIPE_CRC_SOURCE_NONE:
                 *val = 0;
                 break;
+        default:
+                return -EINVAL;
         }
 
         return 0;
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index dee03325d596..07e4949c5f3c 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -1224,6 +1224,11 @@ enum intel_pipe_crc_source {
         INTEL_PIPE_CRC_SOURCE_PLANE2,
         INTEL_PIPE_CRC_SOURCE_PF,
         INTEL_PIPE_CRC_SOURCE_PIPE,
+        /* TV/DP on pre-gen5/vlv can't use the pipe source. */
+        INTEL_PIPE_CRC_SOURCE_TV,
+        INTEL_PIPE_CRC_SOURCE_DP_B,
+        INTEL_PIPE_CRC_SOURCE_DP_C,
+        INTEL_PIPE_CRC_SOURCE_DP_D,
         INTEL_PIPE_CRC_SOURCE_MAX,
 };