aboutsummaryrefslogtreecommitdiffstats
path: root/include/sound/cs4271.h
diff options
context:
space:
mode:
authorDaniel Vetter <daniel.vetter@ffwll.ch>2013-03-19 04:47:30 -0400
committerDaniel Vetter <daniel.vetter@ffwll.ch>2013-03-19 04:47:30 -0400
commit0d4a42f6bd298e826620585e766a154ab460617a (patch)
tree406d8f7778691d858dbe3e48e4bbb10e99c0a58a /include/sound/cs4271.h
parentd62b4892f3d9f7dd2002e5309be10719d6805b0f (diff)
parenta937536b868b8369b98967929045f1df54234323 (diff)
Merge tag 'v3.9-rc3' into drm-intel-next-queued
Backmerge so that I can merge Imre Deak's coalesced sg entries fixes, which depend upon the new for_each_sg_page introduce in commit a321e91b6d73ed011ffceed384c40d2785cf723b Author: Imre Deak <imre.deak@intel.com> Date: Wed Feb 27 17:02:56 2013 -0800 lib/scatterlist: add simple page iterator The merge itself is just two trivial conflicts: Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'include/sound/cs4271.h')
-rw-r--r--include/sound/cs4271.h15
1 files changed, 15 insertions, 0 deletions
diff --git a/include/sound/cs4271.h b/include/sound/cs4271.h
index dd8c48d14ed9..70f45355acaa 100644
--- a/include/sound/cs4271.h
+++ b/include/sound/cs4271.h
@@ -20,6 +20,21 @@
20struct cs4271_platform_data { 20struct cs4271_platform_data {
21 int gpio_nreset; /* GPIO driving Reset pin, if any */ 21 int gpio_nreset; /* GPIO driving Reset pin, if any */
22 bool amutec_eq_bmutec; /* flag to enable AMUTEC=BMUTEC */ 22 bool amutec_eq_bmutec; /* flag to enable AMUTEC=BMUTEC */
23
24 /*
25 * The CS4271 requires its LRCLK and MCLK to be stable before its RESET
26 * line is de-asserted. That also means that clocks cannot be changed
27 * without putting the chip back into hardware reset, which also requires
28 * a complete re-initialization of all registers.
29 *
30 * One (undocumented) workaround is to assert and de-assert the PDN bit
31 * in the MODE2 register. This workaround can be enabled with the
32 * following flag.
33 *
34 * Note that this is not needed in case the clocks are stable
35 * throughout the entire runtime of the codec.
36 */
37 bool enable_soft_reset;
23}; 38};
24 39
25#endif /* __CS4271_H */ 40#endif /* __CS4271_H */