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| author | Jani Nikula <jani.nikula@intel.com> | 2014-10-28 16:20:48 +0200 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2014-11-14 10:29:12 +0100 |
| commit | 938fd8aaf5d5489957255530d1866332aeca7009 (patch) | |
| tree | 8364feba4d584cc97a82a33f81239a0ca9700506 /drivers/gpu/drm/i915/intel_audio.c | |
| parent | 6ccb81f2171ab48592946efab0ce0fd41978f4ba (diff) | |
| download | op-kernel-dev-938fd8aaf5d5489957255530d1866332aeca7009.zip op-kernel-dev-938fd8aaf5d5489957255530d1866332aeca7009.tar.gz | |
drm/edid: fix Baseline_ELD_Len field in drm_edid_to_eld()
The Baseline_ELD_Len field does not include ELD Header Block size.
From High Definition Audio Specification, Revision 1.0a:
The header block is a fixed size of 4 bytes. The baseline block
is variable size in multiple of 4 bytes, and its size is defined
in the header block Baseline_ELD_Len field (in number of
DWords).
Do not include the header size in Baseline_ELD_Len field. Fix all known
users of eld[2].
While at it, switch to DIV_ROUND_UP instead of open coding it.
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Acked-by: Ben Skeggs <bskeggs@redhat.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Acked-by: Dave Airlie <airlied@linux.ie>
[danvet: Fix compile fail in nouveau.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/gpu/drm/i915/intel_audio.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_audio.c | 16 |
1 files changed, 8 insertions, 8 deletions
diff --git a/drivers/gpu/drm/i915/intel_audio.c b/drivers/gpu/drm/i915/intel_audio.c index 44c49df..87750ef 100644 --- a/drivers/gpu/drm/i915/intel_audio.c +++ b/drivers/gpu/drm/i915/intel_audio.c @@ -107,7 +107,7 @@ static bool intel_eld_uptodate(struct drm_connector *connector, tmp &= ~bits_elda; I915_WRITE(reg_elda, tmp); - for (i = 0; i < eld[2]; i++) + for (i = 0; i < drm_eld_size(eld) / 4; i++) if (I915_READ(reg_edid) != *((uint32_t *)eld + i)) return false; @@ -162,7 +162,7 @@ static void g4x_audio_codec_enable(struct drm_connector *connector, len = (tmp >> 9) & 0x1f; /* ELD buffer size */ I915_WRITE(G4X_AUD_CNTL_ST, tmp); - len = min_t(int, eld[2], len); + len = min(drm_eld_size(eld) / 4, len); DRM_DEBUG_DRIVER("ELD size %d\n", len); for (i = 0; i < len; i++) I915_WRITE(G4X_HDMIW_HDMIEDID, *((uint32_t *)eld + i)); @@ -209,7 +209,7 @@ static void hsw_audio_codec_enable(struct drm_connector *connector, int len, i; DRM_DEBUG_KMS("Enable audio codec on pipe %c, %u bytes ELD\n", - pipe_name(pipe), eld[2]); + pipe_name(pipe), drm_eld_size(eld)); /* Enable audio presence detect, invalidate ELD */ tmp = I915_READ(HSW_AUD_PIN_ELD_CP_VLD); @@ -230,8 +230,8 @@ static void hsw_audio_codec_enable(struct drm_connector *connector, I915_WRITE(HSW_AUD_DIP_ELD_CTRL(pipe), tmp); /* Up to 84 bytes of hw ELD buffer */ - len = min_t(int, eld[2], 21); - for (i = 0; i < len; i++) + len = min(drm_eld_size(eld), 84); + for (i = 0; i < len / 4; i++) I915_WRITE(HSW_AUD_EDID_DATA(pipe), *((uint32_t *)eld + i)); /* ELD valid */ @@ -320,7 +320,7 @@ static void ilk_audio_codec_enable(struct drm_connector *connector, int aud_cntrl_st2; DRM_DEBUG_KMS("Enable audio codec on port %c, pipe %c, %u bytes ELD\n", - port_name(port), pipe_name(pipe), eld[2]); + port_name(port), pipe_name(pipe), drm_eld_size(eld)); /* * FIXME: We're supposed to wait for vblank here, but we have vblanks @@ -364,8 +364,8 @@ static void ilk_audio_codec_enable(struct drm_connector *connector, I915_WRITE(aud_cntl_st, tmp); /* Up to 84 bytes of hw ELD buffer */ - len = min_t(int, eld[2], 21); - for (i = 0; i < len; i++) + len = min(drm_eld_size(eld), 84); + for (i = 0; i < len / 4; i++) I915_WRITE(hdmiw_hdmiedid, *((uint32_t *)eld + i)); /* ELD valid */ |
