diff options
Diffstat (limited to 'drivers/extcon')
| -rw-r--r-- | drivers/extcon/extcon-arizona.c | 44 |
1 files changed, 30 insertions, 14 deletions
diff --git a/drivers/extcon/extcon-arizona.c b/drivers/extcon/extcon-arizona.c index 896a923546e..b2892797212 100644 --- a/drivers/extcon/extcon-arizona.c +++ b/drivers/extcon/extcon-arizona.c @@ -104,29 +104,45 @@ static void arizona_extcon_do_magic(struct arizona_extcon_info *info, unsigned int magic) { struct arizona *arizona = info->arizona; - unsigned int val; int ret; mutex_lock(&arizona->dapm->card->dapm_mutex); - ret = regmap_read(arizona->regmap, ARIZONA_OUTPUT_ENABLES_1, &val); - if (ret != 0) { - dev_err(arizona->dev, "Failed to read output enables: %d\n", - ret); - val = 0; - } + arizona->hpdet_magic = magic; - if (!(val & (ARIZONA_OUT1L_ENA | ARIZONA_OUT1R_ENA))) { - ret = regmap_update_bits(arizona->regmap, 0x225, 0x4000, - magic); + /* Keep the HP output stages disabled while doing the magic */ + if (magic) { + ret = regmap_update_bits(arizona->regmap, + ARIZONA_OUTPUT_ENABLES_1, + ARIZONA_OUT1L_ENA | + ARIZONA_OUT1R_ENA, 0); if (ret != 0) - dev_warn(arizona->dev, "Failed to do magic: %d\n", + dev_warn(arizona->dev, + "Failed to disable headphone outputs: %d\n", + ret); + } + + ret = regmap_update_bits(arizona->regmap, 0x225, 0x4000, + magic); + if (ret != 0) + dev_warn(arizona->dev, "Failed to do magic: %d\n", ret); - ret = regmap_update_bits(arizona->regmap, 0x226, 0x4000, - magic); + ret = regmap_update_bits(arizona->regmap, 0x226, 0x4000, + magic); + if (ret != 0) + dev_warn(arizona->dev, "Failed to do magic: %d\n", + ret); + + /* Restore the desired state while not doing the magic */ + if (!magic) { + ret = regmap_update_bits(arizona->regmap, + ARIZONA_OUTPUT_ENABLES_1, + ARIZONA_OUT1L_ENA | + ARIZONA_OUT1R_ENA, arizona->hp_ena); if (ret != 0) - dev_warn(arizona->dev, "Failed to do magic: %d\n", + dev_warn(arizona->dev, + "Failed to restore headphone outputs: %d\n", ret); } |