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drm/i915/audio: drop extra crtc clock check from HDMI audio N lookup

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The array contains the crtc clock, rely on that. While at it, debug log
the HDMI N value or automatic mode.

Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: "Lin, Mengdong" <mengdong.lin@intel.com>
Cc: Libin Yang <libin.yang@linux.intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1477407258-30599-2-git-send-email-jani.nikula@intel.com
This commit is contained in:
Jani Nikula 2016-10-25 17:54:17 +03:00
parent 1aab956c7b
commit 9ca89c443d
1 changed files with 9 additions and 10 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

19
drivers/gpu/drm/i915/intel_audio.c
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@ -254,16 +254,15 @@ hsw_hdmi_audio_config_update(struct intel_crtc *intel_crtc, enum port port,
tmp &= ~AUD_CONFIG_N_PROG_ENABLE;
tmp |= audio_config_hdmi_pixel_clock(adjusted_mode);
if (adjusted_mode->crtc_clock == TMDS_296M ||
adjusted_mode->crtc_clock == TMDS_297M) {
n = audio_config_hdmi_get_n(adjusted_mode, rate);
if (n != 0) {
tmp &= ~AUD_CONFIG_N_MASK;
tmp |= AUD_CONFIG_N(n);
tmp |= AUD_CONFIG_N_PROG_ENABLE;
} else {
DRM_DEBUG_KMS("no suitable N value is found\n");
}
n = audio_config_hdmi_get_n(adjusted_mode, rate);
if (n != 0) {
DRM_DEBUG_KMS("using N %d\n", n);
tmp &= ~AUD_CONFIG_N_MASK;
tmp |= AUD_CONFIG_N(n);
tmp |= AUD_CONFIG_N_PROG_ENABLE;
} else {
DRM_DEBUG_KMS("using automatic N\n");
}
I915_WRITE(HSW_AUD_CFG(pipe), tmp);