Am Sonntag, den 14.04.2013, 01:26 +0200 schrieb Rafał Miłecki: > Closed source driver fglrx seems to enable infoframes and audio packets > at the end, which makes sense, do the same.
Any functionality change? Does not sound like it, but being unambiguous is better. > Signed-off-by: Rafał Miłecki <zaj...@gmail.com> > --- > drivers/gpu/drm/radeon/evergreen_hdmi.c | 15 +++++++++++---- > drivers/gpu/drm/radeon/evergreend.h | 1 + > 2 files changed, 12 insertions(+), 4 deletions(-) > > diff --git a/drivers/gpu/drm/radeon/evergreen_hdmi.c > b/drivers/gpu/drm/radeon/evergreen_hdmi.c > index 8b64bf1..6b25c1b 100644 > --- a/drivers/gpu/drm/radeon/evergreen_hdmi.c > +++ b/drivers/gpu/drm/radeon/evergreen_hdmi.c > @@ -116,7 +116,6 @@ void evergreen_hdmi_setmode(struct drm_encoder *encoder, > struct drm_display_mode > HDMI_AUDIO_PACKETS_PER_LINE(3)); /* should be suffient for all > audio modes and small enough for all hblanks */ > > WREG32(AFMT_AUDIO_PACKET_CONTROL + offset, > - AFMT_AUDIO_SAMPLE_SEND | /* send audio packets */ > AFMT_60958_CS_UPDATE); /* allow 60958 channel status fields to > be updated */ > > WREG32(HDMI_ACR_PACKET_CONTROL + offset, > @@ -129,8 +128,6 @@ void evergreen_hdmi_setmode(struct drm_encoder *encoder, > struct drm_display_mode > HDMI_GC_CONT); /* send general control packets every frame */ > > WREG32(HDMI_INFOFRAME_CONTROL0 + offset, > - HDMI_AVI_INFO_SEND | /* enable AVI info frames */ > - HDMI_AVI_INFO_CONT | /* send AVI info frames every frame/field */ > HDMI_AUDIO_INFO_SEND | /* enable audio info frames (frames won't > be set until audio is enabled) */ > HDMI_AUDIO_INFO_CONT); /* required for audio info values to be > updated */ > > @@ -138,7 +135,6 @@ void evergreen_hdmi_setmode(struct drm_encoder *encoder, > struct drm_display_mode > AFMT_AUDIO_INFO_UPDATE); /* required for audio info values to be > updated */ > > WREG32(HDMI_INFOFRAME_CONTROL1 + offset, > - HDMI_AVI_INFO_LINE(2) | /* anything other than 0 */ > HDMI_AUDIO_INFO_LINE(2)); /* anything other than 0 */ > > WREG32(HDMI_GC + offset, 0); /* unset HDMI_GC_AVMUTE */ > @@ -165,6 +161,14 @@ void evergreen_hdmi_setmode(struct drm_encoder *encoder, > struct drm_display_mode > evergreen_hdmi_update_avi_infoframe(encoder, buffer, sizeof(buffer)); > evergreen_hdmi_update_ACR(encoder, mode->clock); > > + WREG32_OR(HDMI_INFOFRAME_CONTROL0 + offset, > + HDMI_AVI_INFO_SEND | /* enable AVI info frames */ > + HDMI_AVI_INFO_CONT); /* required for audio info values to be > updated */ > + > + WREG32_P(HDMI_INFOFRAME_CONTROL1 + offset, > + HDMI_AVI_INFO_LINE(2), /* anything other than 0 */ > + ~HDMI_AVI_INFO_LINE_MASK); > + > /* > * At this point fglrx changes following regs: > * DCE41: 0x7a70 > @@ -172,6 +176,9 @@ void evergreen_hdmi_setmode(struct drm_encoder *encoder, > struct drm_display_mode > * Is that something audio related? > */ > > + WREG32_OR(AFMT_AUDIO_PACKET_CONTROL + offset, > + AFMT_AUDIO_SAMPLE_SEND); /* send audio packets */ > + > /* it's unknown what these bits do excatly, but it's indeed quite > useful for debugging */ > WREG32(AFMT_RAMP_CONTROL0 + offset, 0x00FFFFFF); > WREG32(AFMT_RAMP_CONTROL1 + offset, 0x007FFFFF); > diff --git a/drivers/gpu/drm/radeon/evergreend.h > b/drivers/gpu/drm/radeon/evergreend.h > index 982d25a..e39e4f4 100644 > --- a/drivers/gpu/drm/radeon/evergreend.h > +++ b/drivers/gpu/drm/radeon/evergreend.h > @@ -197,6 +197,7 @@ > # define HDMI_MPEG_INFO_CONT (1 << 9) > #define HDMI_INFOFRAME_CONTROL1 0x7048 > # define HDMI_AVI_INFO_LINE(x) (((x) & 0x3f) << 0) > +# define HDMI_AVI_INFO_LINE_MASK (0x3f << 0) Is this in a data sheet? > # define HDMI_AUDIO_INFO_LINE(x) (((x) & 0x3f) << 8) > # define HDMI_MPEG_INFO_LINE(x) (((x) & 0x3f) << 16) > #define HDMI_GENERIC_PACKET_CONTROL 0x704c Thanks, Paul
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