UbiquitousOS
/
OpenCloudOS-Kernel
mirror of https://gitee.com/OpenCloudOS/OpenCloudOS-Kernel.git
11
0
Fork 0
Code Issues Projects Releases Wiki Activity

extcon: arizona: Don't ground flip when using HPDET identification 

This extra check makes the procedure take longer and is of marginal use
in identification so do not execute it.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
This commit is contained in:
Mark Brown 2013-04-01 19:10:28 +01:00
parent 9dd5e53d9d
commit db924ff5c7
1 changed files with 1 additions and 23 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

24
drivers/extcon/extcon-arizona.c
View File

@ -470,29 +470,7 @@ static int arizona_hpdet_do_id(struct arizona_extcon_info *info, int *reading)
*/
if (arizona->pdata.hpdet_acc_id) {
info->hpdet_res[info->num_hpdet_res++] = *reading;
/*
* If the impedence is too high don't measure the
* second ground.
*/
if (info->num_hpdet_res == 1 && *reading >= 45) {
dev_dbg(arizona->dev, "Skipping ground flip\n");
info->hpdet_res[info->num_hpdet_res++] = *reading;
}
if (info->num_hpdet_res == 1) {
dev_dbg(arizona->dev, "Flipping ground\n");
regmap_update_bits(arizona->regmap,
ARIZONA_ACCESSORY_DETECT_MODE_1,
ARIZONA_ACCDET_SRC,
~info->micd_modes[0].src);
regmap_update_bits(arizona->regmap,
ARIZONA_HEADPHONE_DETECT_1,
ARIZONA_HP_POLL, ARIZONA_HP_POLL);
return -EAGAIN;
}
info->hpdet_res[info->num_hpdet_res++] = *reading;
/* Only check the mic directly if we didn't already ID it */
if (id_gpio && info->num_hpdet_res == 2 &&