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authorMark Brown <broonie@opensource.wolfsonmicro.com>2013-01-11 03:55:51 +0400
committerChanwoo Choi <cw00.choi@samsung.com>2013-01-15 10:42:18 +0400
commitdd235eea4ed75b1599dd9a53bb618fe5befeb731 (patch)
treefa179be072d4865c3590599c14f02ee761c8326e /include/linux/mfd/arizona/pdata.h
parent9b1270c71fb5f4783c72cae7e458b2cf8c657f84 (diff)
downloadlinux-dd235eea4ed75b1599dd9a53bb618fe5befeb731.tar.xz
extcon: arizona: Support HPDET based accessory identification
The accessory detection functionality in Arizona devices is flexible and supports several system designs in addition to the default one implemented by the existing driver. One such design uses the HPDET feature to determine what kind of accessory is present by comparing measurements taken with the two headphone grounds available on the device, implement that if selected by platform data. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com> Signed-off-by: Myungjoo Ham <myungjoo.ham@samsung.com>
Diffstat (limited to 'include/linux/mfd/arizona/pdata.h')
-rw-r--r--include/linux/mfd/arizona/pdata.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/mfd/arizona/pdata.h b/include/linux/mfd/arizona/pdata.h
index 0fc26a480be3..7c0878778357 100644
--- a/include/linux/mfd/arizona/pdata.h
+++ b/include/linux/mfd/arizona/pdata.h
@@ -99,6 +99,9 @@ struct arizona_pdata {
/** GPIO5 is used for jack detection */
bool jd_gpio5;
+ /** Use the headphone detect circuit to identify the accessory */
+ bool hpdet_acc_id;
+
/** GPIO for mic detection polarity */
int micd_pol_gpio;