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authorMark Brown <broonie@opensource.wolfsonmicro.com>2013-04-01 22:04:43 +0400
committerMark Brown <broonie@opensource.wolfsonmicro.com>2013-04-02 14:53:55 +0400
commit82e2e0fd3fcf2aec9d5796e31d7f29c738331f6b (patch)
treee44c7da4fa707db02dcce619a2c8a98cf447ac4b /drivers/extcon
parente56a0a572be150c79cdbf62ff98f4a63419e1c0b (diff)
downloadlinux-82e2e0fd3fcf2aec9d5796e31d7f29c738331f6b.tar.xz
extcon: arizona: Raise minimum microphone impedance for HPDET method
Ensure greater reliability by increasing the minimum threashold for identifying a microphone. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Diffstat (limited to 'drivers/extcon')
-rw-r--r--drivers/extcon/extcon-arizona.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/extcon/extcon-arizona.c b/drivers/extcon/extcon-arizona.c
index 132bc99fdc06..2f0bd4938fcc 100644
--- a/drivers/extcon/extcon-arizona.c
+++ b/drivers/extcon/extcon-arizona.c
@@ -519,7 +519,7 @@ static int arizona_hpdet_do_id(struct arizona_extcon_info *info, int *reading)
* measure the mic as high impedance.
*/
if ((info->hpdet_res[0] > info->hpdet_res[1] * 2) ||
- (id_gpio && info->hpdet_res[2] > 10)) {
+ (id_gpio && info->hpdet_res[2] > 1257)) {
dev_dbg(arizona->dev, "Detected mic\n");
info->mic = true;
info->detecting = true;