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swh:1:snp:77163734605b0ec556b01d897b7bb4a7e30d46b6
Revision c149dcb5c60bfea8871f16dfcc0690255eeb825f authored by Jani Nikula on 04 July 2014, 02:00:37 UTC, committed by Takashi Iwai on 04 July 2014, 05:46:09 UTC 
drm/i915: provide interface for audio driver to query cdclk
 
For Haswell and Broadwell, if the display power well has been disabled,
the display audio controller divider values EM4 M VALUE and EM5 N VALUE
will have been lost. The CDCLK frequency is required for reprogramming them
to generate 24MHz HD-A link BCLK. So provide a private interface for the
audio driver to query CDCLK.

This is a stopgap solution until a more generic interface between audio
and display drivers has been implemented.

Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Mengdong Lin <mengdong.lin@intel.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
1 parent a12137e
History
Tip revision: a4412fdd49dc011bcc2c0d81ac4cab7457092650 authored by Steven Rostedt (Google) on 21 November 2022, 15:44:03 UTC
error-injection: Add prompt for function error injection
Tip revision: a4412fd
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.gitignore -rw-r--r-- 1.1 KB
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MAINTAINERS -rw-r--r-- 275.0 KB
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REPORTING-BUGS -rw-r--r-- 7.3 KB

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