diff options
Diffstat (limited to 'sound/soc/codecs/cs42l42.c')
| -rw-r--r-- | sound/soc/codecs/cs42l42.c | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/sound/soc/codecs/cs42l42.c b/sound/soc/codecs/cs42l42.c index cefefd706168..aa8d724432ab 100644 --- a/sound/soc/codecs/cs42l42.c +++ b/sound/soc/codecs/cs42l42.c @@ -20,6 +20,7 @@ #include <linux/slab.h> #include <linux/acpi.h> #include <linux/platform_device.h> +#include <linux/pm_runtime.h> #include <linux/property.h> #include <linux/regulator/consumer.h> #include <linux/gpio/consumer.h> @@ -525,6 +526,10 @@ static const struct snd_soc_dapm_widget cs42l42_dapm_widgets[] = { /* Playback/Capture Requirements */ SND_SOC_DAPM_SUPPLY("SCLK", CS42L42_ASP_CLK_CFG, CS42L42_ASP_SCLK_EN_SHIFT, 0, NULL, 0), + + /* Soundwire SRC power control */ + SND_SOC_DAPM_PGA("DACSRC", CS42L42_PWR_CTL2, CS42L42_DAC_SRC_PDNB_SHIFT, 0, NULL, 0), + SND_SOC_DAPM_PGA("ADCSRC", CS42L42_PWR_CTL2, CS42L42_ADC_SRC_PDNB_SHIFT, 0, NULL, 0), }; static const struct snd_soc_dapm_route cs42l42_audio_map[] = { @@ -1660,9 +1665,11 @@ irqreturn_t cs42l42_irq_thread(int irq, void *data) unsigned int current_button_status; unsigned int i; + pm_runtime_get_sync(cs42l42->dev); mutex_lock(&cs42l42->irq_lock); if (cs42l42->suspended || !cs42l42->init_done) { mutex_unlock(&cs42l42->irq_lock); + pm_runtime_put_autosuspend(cs42l42->dev); return IRQ_NONE; } @@ -1765,6 +1772,8 @@ irqreturn_t cs42l42_irq_thread(int irq, void *data) } mutex_unlock(&cs42l42->irq_lock); + pm_runtime_mark_last_busy(cs42l42->dev); + pm_runtime_put_autosuspend(cs42l42->dev); return IRQ_HANDLED; } @@ -2144,6 +2153,9 @@ int cs42l42_suspend(struct device *dev) u8 save_regs[ARRAY_SIZE(cs42l42_shutdown_seq)]; int i, ret; + if (!cs42l42->init_done) + return 0; + /* * Wait for threaded irq handler to be idle and stop it processing * future interrupts. This ensures a safe disable if the interrupt @@ -2204,6 +2216,9 @@ int cs42l42_resume(struct device *dev) struct cs42l42_private *cs42l42 = dev_get_drvdata(dev); int ret; + if (!cs42l42->init_done) + return 0; + /* * If jack was unplugged and re-plugged during suspend it could * have changed type but the tip-sense state hasn't changed. @@ -2388,6 +2403,18 @@ int cs42l42_init(struct cs42l42_private *cs42l42) if (ret != 0) goto err_shutdown; + /* + * SRC power is linked to ASP power so doesn't work in Soundwire mode. + * Override it and use DAPM to control SRC power for Soundwire. + */ + if (cs42l42->sdw_peripheral) { + regmap_update_bits(cs42l42->regmap, CS42L42_PWR_CTL2, + CS42L42_SRC_PDN_OVERRIDE_MASK | + CS42L42_DAC_SRC_PDNB_MASK | + CS42L42_ADC_SRC_PDNB_MASK, + CS42L42_SRC_PDN_OVERRIDE_MASK); + } + /* Setup headset detection */ cs42l42_setup_hs_type_detect(cs42l42); |