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ASoC: rt5640: Add optional hp_det_gpio parameter to rt5640_detect_headset()

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Some devices don't use the builtin jack-detect but can still benefit
from the mic-bias-current over-current-detection headphones vs
headset detection done by rt5640_detect_headset().

In this case the jack-inserted check done by rt5640_detect_headset()
needs to be done through a GPIO rather then by using the codec's
builtin jack-detect. Add an optional hp_det_gpio parameter and export
rt5640_detect_headset() for use on machines where jack-detect is
handled outside of the codec.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20210819190543.784415-4-hdegoede@redhat.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Hans de Goede 2021-08-19 21:05:40 +02:00 committed by Mark Brown
parent 15d54840ec
commit d21213b450
No known key found for this signature in database
GPG Key ID: 24D68B725D5487D0
2 changed files with 12 additions and 4 deletions
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14
sound/soc/codecs/rt5640.c
View File

@ -2241,7 +2241,7 @@ static void rt5640_button_press_work(struct work_struct *work)
schedule_delayed_work(&rt5640->bp_work, msecs_to_jiffies(BP_POLL_TIME));
}
static int rt5640_detect_headset(struct snd_soc_component *component)
int rt5640_detect_headset(struct snd_soc_component *component, struct gpio_desc *hp_det_gpio)
{
int i, headset_count = 0, headphone_count = 0;
@ -2259,8 +2259,13 @@ static int rt5640_detect_headset(struct snd_soc_component *component)
msleep(JACK_SETTLE_TIME);
/* Check the jack is still connected before checking ovcd */
if (!rt5640_jack_inserted(component))
return 0;
if (hp_det_gpio) {
if (gpiod_get_value_cansleep(hp_det_gpio))
return 0;
} else {
if (!rt5640_jack_inserted(component))
return 0;
}
if (rt5640_micbias1_ovcd(component)) {
/*
@ -2285,6 +2290,7 @@ static int rt5640_detect_headset(struct snd_soc_component *component)
dev_err(component->dev, "Error detecting headset vs headphones, bad contact?, assuming headphones\n");
return SND_JACK_HEADPHONE;
}
EXPORT_SYMBOL_GPL(rt5640_detect_headset);
static void rt5640_jack_work(struct work_struct *work)
{
@ -2309,7 +2315,7 @@ static void rt5640_jack_work(struct work_struct *work)
/* Jack inserted */
WARN_ON(rt5640->ovcd_irq_enabled);
rt5640_enable_micbias1_for_ovcd(component);
status = rt5640_detect_headset(component);
status = rt5640_detect_headset(component, NULL);
if (status == SND_JACK_HEADSET) {
/* Enable ovcd IRQ for button press detect. */
rt5640_enable_micbias1_ovcd_irq(component);

2
sound/soc/codecs/rt5640.h
View File

@ -10,6 +10,7 @@
#define _RT5640_H
#include <linux/clk.h>
#include <linux/gpio/consumer.h>
#include <linux/workqueue.h>
#include <dt-bindings/sound/rt5640.h>
@ -2156,5 +2157,6 @@ int rt5640_dmic_enable(struct snd_soc_component *component,
bool dmic1_data_pin, bool dmic2_data_pin);
int rt5640_sel_asrc_clk_src(struct snd_soc_component *component,
unsigned int filter_mask, unsigned int clk_src);
int rt5640_detect_headset(struct snd_soc_component *component, struct gpio_desc *hp_det_gpio);
#endif