commit db606b0a39452c90e26692c22300c390f5822f29
author Joonwoo Park <joonwoop@codeaurora.org> Sat Aug 11 13:46:30 2012 -0700
committer Linux Build Service Account <lnxbuild@localhost> Tue Sep 04 17:19:18 2012 -0600
tree 80f60858255b7f5710675afba43fbf05af60fca3
parent fe0a7d26d3e8dd1f42840dc2a61b70b0d899d0b1

ASoC: wcd9310: reduce mbhc button release GPIO debounce time

Current GPIO debounce time is too long so it delays next button
press detection.  Reduce this debounce time so driver can detect
next button press and release quickly.
Typically mic voltage ramps up within few milliseconds after button
release so 50ms is long enough.

Change-Id: I41e1e55f9393686b5c64074fcf14012e99b13e4b
Signed-off-by: Joonwoo Park <joonwoop@codeaurora.org>

sound/soc/codecs/wcd9310.c

diff --git a/sound/soc/codecs/wcd9310.c b/sound/soc/codecs/wcd9310.c
index 09cb605..374269d 100644
--- a/sound/soc/codecs/wcd9310.c
+++ b/sound/soc/codecs/wcd9310.c
@@ -103,7 +103,7 @@
 
 #define TABLA_MBHC_STATUS_REL_DETECTION 0x0C
 
-#define TABLA_MBHC_GPIO_REL_DEBOUNCE_TIME_MS 200
+#define TABLA_MBHC_GPIO_REL_DEBOUNCE_TIME_MS 50
 
 #define TABLA_MBHC_FAKE_INS_DELTA_MV 200
 #define TABLA_MBHC_FAKE_INS_DELTA_SCALED_MV 300