[alsa-devel] [PATCH 2/4] sound: soc: msm7k: improve buffer underrun issue

[Denis 'GNUtoo' Carikli]

This commit is a rebase of the following patch:
 commit ac97ef246a754b9a2b4236ca08c6ade389dc206f
 Author: Pradeep Jilagam <pjilagam at qualcomm.com>
 Date:   Wed Apr 7 17:38:20 2010 +0530

     alsa: 8k: Limit period size for sample rates greater than 8KHz

     The DSP interrupts are non-periodic. ALSA expects periodic
     acknowledgement for the buffers sent. Hence, the alsa driver uses
     timer as alternate interrupt source. The min resolution is 10ms
     which results in distorted audio for some sample rates. Hence
     restricting the minimum period size for sample rates greater
     than 8KHz to 512 frames.

     Change-Id: Ic8c4180fbee7242fa3139230ddcf6a9f98e4c7ab
     CRs-fixed: 231784
     Signed-off-by: Pradeep Jilagam <pjilagam at qualcomm.com>