On Tue, Apr 12, 2016 at 12:10:48PM +0200, Takashi Iwai wrote:
On Tue, 12 Apr 2016 11:56:10 +0200, Subhransu S. Prusty wrote:
This helper is copied from legacy hda driver.
Signed-off-by: Subhransu S. Prusty subhransu.s.prusty@intel.com Signed-off-by: Vinod Koul vinod.koul@intel.com
sound/hda/local.h | 10 ++++++++++ 1 file changed, 10 insertions(+)
diff --git a/sound/hda/local.h b/sound/hda/local.h index d692f41..57f07d7 100644 --- a/sound/hda/local.h +++ b/sound/hda/local.h @@ -16,6 +16,16 @@ static inline int get_wcaps_type(unsigned int wcaps) return (wcaps & AC_WCAP_TYPE) >> AC_WCAP_TYPE_SHIFT; }
+static inline unsigned int get_wcaps_channels(u32 wcaps) +{
- unsigned int chans;
- chans = (wcaps & AC_WCAP_CHAN_CNT_EXT) >> 13;
- chans = ((chans << 1) | 1) + 1;
Let's make it simple. This is equivalent with chans = (chans + 1) * 2;
Sure.
Regards, Subhransu
Takashi
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