[PATCH 13/16] drm/i915: Add new CRC sources

Daniel Vetter
2013-10-16T21:00:18Z

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.

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
drivers/gpu/drm/i915/i915_debugfs.c | 16 ++++++++++------
drivers/gpu/drm/i915/i915_drv.h | 5 +++++
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 59c7653..c504c27 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 09857f8..4ba0a79 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -1223,6 +1223,11 @@ 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,
};

--
1.8.4.rc3