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extcon_madera: support lineout report

Browse source 
when the hp impedance is greater than 5000, we regcognize it as
lineout to instead the orginal headphone

Change-Id: I0a7843c4e8fb7db3f0d5b681210c24e15d56a59c
Signed-off-by: huangys <huangys@motorola.com>
Reviewed-on: https://gerrit.mot.com/1275817
SLTApproved: Slta Waiver
SME-Granted: SME Approvals Granted
Tested-by: Jira Key
Reviewed-by: Guobin Zhang <zhanggb@motorola.com>
Submit-Approved: Jira Key
This commit is contained in:
huangys 2018-11-29 20:00:24 +08:00 • committed by Yuesheng Huang
commit dd9dd4ed04
1 changed files with 14 additions and 1 deletions
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15
drivers/extcon/extcon-madera.c
View file

@ -46,6 +46,7 @@
#define MADERA_MICD_WRONG_POLARITY 30
#define MADERA_HPDET_LINEOUT 500000 /* 5,000 ohms */
#define MADERA_HPDET_MAX_OHM 10000
#define MADERA_HPDET_MAX_HOHM (MADERA_HPDET_MAX_OHM * 100)
#define MADERA_HP_SHORT_IMPEDANCE_MIN 4
@ -64,6 +65,7 @@
static const unsigned int madera_cable[] = {
EXTCON_MECHANICAL,
EXTCON_JACK_HEADPHONE,
EXTCON_JACK_LINE_OUT,
EXTCON_JACK_MICROPHONE,
EXTCON_NONE,
};
@ -536,6 +538,11 @@ inline void madera_extcon_report(struct madera_extcon *info,
SW_HEADPHONE_INSERT,
attached);
break;
case EXTCON_JACK_LINE_OUT:
input_report_switch(info->input,
SW_LINEOUT_INSERT,
attached);
break;
case EXTCON_JACK_MICROPHONE:
input_report_switch(info->input,
SW_MICROPHONE_INSERT,
@ -1660,7 +1667,10 @@ int madera_hpdet_reading(struct madera_extcon *info, int val)
madera_set_headphone_imp(info, val);
madera_extcon_report(info, EXTCON_JACK_HEADPHONE, true);
if (val > MADERA_HPDET_LINEOUT)
madera_extcon_report(info, EXTCON_JACK_LINE_OUT, true);
else
madera_extcon_report(info, EXTCON_JACK_HEADPHONE, true);
if (info->have_mic)
madera_jds_set_state(info, &madera_micd_button);
@ -3229,6 +3239,9 @@ static int madera_extcon_probe(struct platform_device *pdev)
input_set_capability(info->input,
EV_SW,
SW_HEADPHONE_INSERT);
input_set_capability(info->input,
EV_SW,
SW_LINEOUT_INSERT);
input_set_capability(info->input,
EV_SW,
SW_JACK_PHYSICAL_INSERT);