diff options
author | Mark Brown <broonie@kernel.org> | 2021-08-20 15:32:26 +0100 |
---|---|---|
committer | Mark Brown <broonie@kernel.org> | 2021-08-20 15:32:26 +0100 |
commit | 77eca00f8366238398b9f2f6eea1707a0832f79e (patch) | |
tree | f728a703dfa03d52a71e2e341211ccd8ae66f0ff /sound/soc/codecs | |
parent | cc64c390b215b404524725a94857d6fb58d9a62a (diff) | |
parent | 9ba00856686ade106afee2884b5e8ac1e09d137a (diff) |
Merge series "ASoC: Intel/rt5640: Add support for HP Elite Pad 1000G2 jack-detect" from Hans de Goede <hdegoede@redhat.com>:
Changes in v2:
- Rebase on asoc/for-next
- New patch: "ASoC: Intel: bytct_rt5640: Add a separate "Headset Mic 2"
DAPM pin for the mic on the 2nd jack"
- Addressed Pierre-Louis' comments about calling
acpi_dev_add_driver_gpios() twice
Original cover-letter:
The HP Elitepad 1000 G2 tablet has 2 headset jacks:
1. on the dock which uses the output of the codecs built-in HP-amp +
the standard IN2 input which is always used with the headset-jack.
2. on the tablet itself, this uses the line-out of the codec + an external
HP-amp, which gets enabled by the ALC5642 codec's GPIO1 pin; and IN1 for
the headset-mic.
The codec's GPIO1 is also its only IRQ output pin, so this means that
the codec's IRQ cannot be used on this tablet. Instead the jack-detect
is connected directly to GPIOs on the main SoC. The dock has a helper
chip which also detects if a headset-mic is present or not, so there
are 2 GPIOs for the jack-detect status of the dock. The tablet jack
uses a single GPIO which indicates if a jack is present or not.
Differentiating between between headphones vs a headset on the tablet jack
is done by using the usual mic-bias over-current-detection mechanism.
Regards,
Hans
Hans de Goede (6):
ASoC: rt5640: Move rt5640_disable_jack_detect() up in the rt5640.c
file
ASoC: rt5640: Delay requesting IRQ until the machine-drv calls
set_jack
ASoC: rt5640: Add optional hp_det_gpio parameter to
rt5640_detect_headset()
ASoC: rt5640: Add rt5640_set_ovcd_params() helper
ASoC: Intel: bytct_rt5640: Add a separate "Headset Mic 2" DAPM pin for
the mic on the 2nd jack
ASoC: Intel: bytcr_rt5640: Add support for HP Elite Pad 1000G2
jack-detect
sound/soc/codecs/rt5640.c | 136 ++++++++++++----------
sound/soc/codecs/rt5640.h | 6 +
sound/soc/intel/boards/bytcr_rt5640.c | 158 +++++++++++++++++++++++++-
3 files changed, 234 insertions(+), 66 deletions(-)
--
2.31.1
Diffstat (limited to 'sound/soc/codecs')
-rw-r--r-- | sound/soc/codecs/rt5640.c | 136 | ||||
-rw-r--r-- | sound/soc/codecs/rt5640.h | 6 |
2 files changed, 80 insertions, 62 deletions
diff --git a/sound/soc/codecs/rt5640.c b/sound/soc/codecs/rt5640.c index 0f5087a7644b..cd1db5caabad 100644 --- a/sound/soc/codecs/rt5640.c +++ b/sound/soc/codecs/rt5640.c @@ -2093,7 +2093,7 @@ int rt5640_sel_asrc_clk_src(struct snd_soc_component *component, } EXPORT_SYMBOL_GPL(rt5640_sel_asrc_clk_src); -static void rt5640_enable_micbias1_for_ovcd(struct snd_soc_component *component) +void rt5640_enable_micbias1_for_ovcd(struct snd_soc_component *component) { struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component); @@ -2105,8 +2105,9 @@ static void rt5640_enable_micbias1_for_ovcd(struct snd_soc_component *component) snd_soc_dapm_sync_unlocked(dapm); snd_soc_dapm_mutex_unlock(dapm); } +EXPORT_SYMBOL_GPL(rt5640_enable_micbias1_for_ovcd); -static void rt5640_disable_micbias1_for_ovcd(struct snd_soc_component *component) +void rt5640_disable_micbias1_for_ovcd(struct snd_soc_component *component) { struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component); @@ -2117,6 +2118,7 @@ static void rt5640_disable_micbias1_for_ovcd(struct snd_soc_component *component snd_soc_dapm_sync_unlocked(dapm); snd_soc_dapm_mutex_unlock(dapm); } +EXPORT_SYMBOL_GPL(rt5640_disable_micbias1_for_ovcd); static void rt5640_enable_micbias1_ovcd_irq(struct snd_soc_component *component) { @@ -2241,7 +2243,7 @@ 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 +2261,13 @@ 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 +2292,7 @@ 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 +2317,7 @@ 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); @@ -2362,10 +2370,59 @@ static void rt5640_cancel_work(void *data) cancel_delayed_work_sync(&rt5640->bp_work); } +void rt5640_set_ovcd_params(struct snd_soc_component *component) +{ + struct rt5640_priv *rt5640 = snd_soc_component_get_drvdata(component); + + snd_soc_component_write(component, RT5640_PR_BASE + RT5640_BIAS_CUR4, + 0xa800 | rt5640->ovcd_sf); + + snd_soc_component_update_bits(component, RT5640_MICBIAS, + RT5640_MIC1_OVTH_MASK | RT5640_MIC1_OVCD_MASK, + rt5640->ovcd_th | RT5640_MIC1_OVCD_EN); + + /* + * The over-current-detect is only reliable in detecting the absence + * of over-current, when the mic-contact in the jack is short-circuited, + * the hardware periodically retries if it can apply the bias-current + * leading to the ovcd status flip-flopping 1-0-1 with it being 0 about + * 10% of the time, as we poll the ovcd status bit we might hit that + * 10%, so we enable sticky mode and when checking OVCD we clear the + * status, msleep() a bit and then check to get a reliable reading. + */ + snd_soc_component_update_bits(component, RT5640_IRQ_CTRL2, + RT5640_MB1_OC_STKY_MASK, RT5640_MB1_OC_STKY_EN); +} +EXPORT_SYMBOL_GPL(rt5640_set_ovcd_params); + +static void rt5640_disable_jack_detect(struct snd_soc_component *component) +{ + struct rt5640_priv *rt5640 = snd_soc_component_get_drvdata(component); + + /* + * soc_remove_component() force-disables jack and thus rt5640->jack + * could be NULL at the time of driver's module unloading. + */ + if (!rt5640->jack) + return; + + free_irq(rt5640->irq, rt5640); + rt5640_cancel_work(rt5640); + + if (rt5640->jack->status & SND_JACK_MICROPHONE) { + rt5640_disable_micbias1_ovcd_irq(component); + rt5640_disable_micbias1_for_ovcd(component); + snd_soc_jack_report(rt5640->jack, 0, SND_JACK_BTN_0); + } + + rt5640->jack = NULL; +} + static void rt5640_enable_jack_detect(struct snd_soc_component *component, struct snd_soc_jack *jack) { struct rt5640_priv *rt5640 = snd_soc_component_get_drvdata(component); + int ret; /* Select JD-source */ snd_soc_component_update_bits(component, RT5640_JD_CTRL, @@ -2385,24 +2442,7 @@ static void rt5640_enable_jack_detect(struct snd_soc_component *component, /* Enabling jd2 in general control 2 */ snd_soc_component_write(component, RT5640_DUMMY2, 0x4001); - snd_soc_component_write(component, RT5640_PR_BASE + RT5640_BIAS_CUR4, - 0xa800 | rt5640->ovcd_sf); - - snd_soc_component_update_bits(component, RT5640_MICBIAS, - RT5640_MIC1_OVTH_MASK | RT5640_MIC1_OVCD_MASK, - rt5640->ovcd_th | RT5640_MIC1_OVCD_EN); - - /* - * The over-current-detect is only reliable in detecting the absence - * of over-current, when the mic-contact in the jack is short-circuited, - * the hardware periodically retries if it can apply the bias-current - * leading to the ovcd status flip-flopping 1-0-1 with it being 0 about - * 10% of the time, as we poll the ovcd status bit we might hit that - * 10%, so we enable sticky mode and when checking OVCD we clear the - * status, msleep() a bit and then check to get a reliable reading. - */ - snd_soc_component_update_bits(component, RT5640_IRQ_CTRL2, - RT5640_MB1_OC_STKY_MASK, RT5640_MB1_OC_STKY_EN); + rt5640_set_ovcd_params(component); /* * All IRQs get or-ed together, so we need the jack IRQ to report 0 @@ -2423,32 +2463,19 @@ static void rt5640_enable_jack_detect(struct snd_soc_component *component, rt5640_enable_micbias1_ovcd_irq(component); } - enable_irq(rt5640->irq); - /* sync initial jack state */ - queue_work(system_long_wq, &rt5640->jack_work); -} - -static void rt5640_disable_jack_detect(struct snd_soc_component *component) -{ - struct rt5640_priv *rt5640 = snd_soc_component_get_drvdata(component); - - /* - * soc_remove_component() force-disables jack and thus rt5640->jack - * could be NULL at the time of driver's module unloading. - */ - if (!rt5640->jack) + ret = request_irq(rt5640->irq, rt5640_irq, + IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING | IRQF_ONESHOT, + "rt5640", rt5640); + if (ret) { + dev_warn(component->dev, "Failed to reguest IRQ %d: %d\n", rt5640->irq, ret); + rt5640->irq = -ENXIO; + /* Undo above settings */ + rt5640_disable_jack_detect(component); return; - - disable_irq(rt5640->irq); - rt5640_cancel_work(rt5640); - - if (rt5640->jack->status & SND_JACK_MICROPHONE) { - rt5640_disable_micbias1_ovcd_irq(component); - rt5640_disable_micbias1_for_ovcd(component); - snd_soc_jack_report(rt5640->jack, 0, SND_JACK_BTN_0); } - rt5640->jack = NULL; + /* sync initial jack state */ + queue_work(system_long_wq, &rt5640->jack_work); } static int rt5640_set_jack(struct snd_soc_component *component, @@ -2836,21 +2863,6 @@ static int rt5640_i2c_probe(struct i2c_client *i2c, if (ret) return ret; - if (rt5640->irq) { - /* enabled by rt5640_set_jack() */ - ret = devm_request_irq(&i2c->dev, rt5640->irq, rt5640_irq, - IRQF_TRIGGER_RISING | IRQF_NO_AUTOEN | - IRQF_TRIGGER_FALLING | IRQF_ONESHOT, - "rt5640", rt5640); - if (ret) { - dev_err(&i2c->dev, "Failed to request IRQ %d: %d\n", - rt5640->irq, ret); - return ret; - } - } else { - rt5640->irq = -ENXIO; - } - return devm_snd_soc_register_component(&i2c->dev, &soc_component_dev_rt5640, rt5640_dai, ARRAY_SIZE(rt5640_dai)); diff --git a/sound/soc/codecs/rt5640.h b/sound/soc/codecs/rt5640.h index 4fd47f2b936b..2c28f83e338a 100644 --- a/sound/soc/codecs/rt5640.h +++ b/sound/soc/codecs/rt5640.h @@ -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> @@ -2157,4 +2158,9 @@ int rt5640_dmic_enable(struct snd_soc_component *component, int rt5640_sel_asrc_clk_src(struct snd_soc_component *component, unsigned int filter_mask, unsigned int clk_src); +void rt5640_set_ovcd_params(struct snd_soc_component *component); +void rt5640_enable_micbias1_for_ovcd(struct snd_soc_component *component); +void rt5640_disable_micbias1_for_ovcd(struct snd_soc_component *component); +int rt5640_detect_headset(struct snd_soc_component *component, struct gpio_desc *hp_det_gpio); + #endif |