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| author | Jesse Barnes <jbarnes@virtuousgeek.org> | 2011-09-22 07:46:00 +0200 |
|---|---|---|
| committer | Keith Packard <keithp@keithp.com> | 2011-10-21 08:22:02 +0200 |
| commit | 64a8fc0145a1d0fdc25fc9367c2e6c621955fb3b (patch) | |
| tree | 4493ede40ed91d9e2835078f4d6397f65adcce68 /drivers | |
| parent | drm/i915: add DP test request handling (diff) | |
| download | linux-64a8fc0145a1d0fdc25fc9367c2e6c621955fb3b.tar.xz linux-64a8fc0145a1d0fdc25fc9367c2e6c621955fb3b.zip | |
drm/i915: fix ILK+ infoframe support
Misc fixes based on tests with an infoframe analyzer:
- checksum *does* include header bytes
- DIP enable & AVI infoframe are tied together in hw, so disable both
and make sure AVI frames are enabled first
- use every vsync flag for SPD frames to avoid reserved value in
frequency field when enabling both AVI & SPD
Fixes https://bugs.freedesktop.org/show_bug.cgi?id=40281.
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Cc: stable@kernel.org
Signed-off-by: Keith Packard <keithp@keithp.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_hdmi.c | 18 |
1 files changed, 11 insertions, 7 deletions
diff --git a/drivers/gpu/drm/i915/intel_hdmi.c b/drivers/gpu/drm/i915/intel_hdmi.c index e7e716cb1c99..d4f5a0b2120d 100644 --- a/drivers/gpu/drm/i915/intel_hdmi.c +++ b/drivers/gpu/drm/i915/intel_hdmi.c @@ -69,8 +69,7 @@ void intel_dip_infoframe_csum(struct dip_infoframe *frame) frame->checksum = 0; frame->ecc = 0; - /* Header isn't part of the checksum */ - for (i = 5; i < frame->len; i++) + for (i = 0; i < frame->len + DIP_HEADER_SIZE; i++) sum += data[i]; frame->checksum = 0x100 - sum; @@ -104,7 +103,7 @@ static u32 intel_infoframe_flags(struct dip_infoframe *frame) flags |= VIDEO_DIP_ENABLE_AVI | VIDEO_DIP_FREQ_VSYNC; break; case DIP_TYPE_SPD: - flags |= VIDEO_DIP_ENABLE_SPD | VIDEO_DIP_FREQ_2VSYNC; + flags |= VIDEO_DIP_ENABLE_SPD | VIDEO_DIP_FREQ_VSYNC; break; default: DRM_DEBUG_DRIVER("unknown info frame type %d\n", frame->type); @@ -165,9 +164,9 @@ static void ironlake_write_infoframe(struct drm_encoder *encoder, flags = intel_infoframe_index(frame); - val &= ~VIDEO_DIP_SELECT_MASK; + val &= ~(VIDEO_DIP_SELECT_MASK | 0xf); /* clear DIP data offset */ - I915_WRITE(reg, val | flags); + I915_WRITE(reg, VIDEO_DIP_ENABLE | val | flags); for (i = 0; i < len; i += 4) { I915_WRITE(TVIDEO_DIP_DATA(intel_crtc->pipe), *data); @@ -487,6 +486,7 @@ void intel_hdmi_init(struct drm_device *dev, int sdvox_reg) struct intel_encoder *intel_encoder; struct intel_connector *intel_connector; struct intel_hdmi *intel_hdmi; + int i; intel_hdmi = kzalloc(sizeof(struct intel_hdmi), GFP_KERNEL); if (!intel_hdmi) @@ -539,10 +539,14 @@ void intel_hdmi_init(struct drm_device *dev, int sdvox_reg) intel_hdmi->sdvox_reg = sdvox_reg; - if (!HAS_PCH_SPLIT(dev)) + if (!HAS_PCH_SPLIT(dev)) { intel_hdmi->write_infoframe = i9xx_write_infoframe; - else + I915_WRITE(VIDEO_DIP_CTL, 0); + } else { intel_hdmi->write_infoframe = ironlake_write_infoframe; + for_each_pipe(i) + I915_WRITE(TVIDEO_DIP_CTL(i), 0); + } drm_encoder_helper_add(&intel_encoder->base, &intel_hdmi_helper_funcs); |