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authorClaudiu Beznea <claudiu.beznea@microchip.com>2022-11-17 14:37:50 +0200
committerMark Brown <broonie@kernel.org>2022-11-18 11:57:06 +0000
commitabc7edb0329cd2eabc0b948f5e248c85f6268296 (patch)
tree461428151bf79e6f7334c77b7562c4025f9384b6 /sound/soc/atmel
parent4bf54ca60f99643cfaa3e5b532f139f6501f318e (diff)
ASoC: mchp-spdiftx: add support for system suspend/resume
Add support for system suspend/resume by moving the enable/disable of interrupts in mchp_spdiftx_trigger() on SNDRV_PCM_TRIGGER_SUSPEND/ SNDRV_PCM_TRIGGER_RESUME commands. Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com> Link: https://lore.kernel.org/r/20221117123750.291911-4-claudiu.beznea@microchip.com Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound/soc/atmel')
-rw-r--r--sound/soc/atmel/mchp-spdiftx.c22
1 files changed, 13 insertions, 9 deletions
diff --git a/sound/soc/atmel/mchp-spdiftx.c b/sound/soc/atmel/mchp-spdiftx.c
index ec454e64d85c..dc96a6fbf514 100644
--- a/sound/soc/atmel/mchp-spdiftx.c
+++ b/sound/soc/atmel/mchp-spdiftx.c
@@ -198,6 +198,7 @@ struct mchp_spdiftx_dev {
struct clk *pclk;
struct clk *gclk;
unsigned int fmt;
+ unsigned int suspend_irq;
};
static inline int mchp_spdiftx_is_running(struct mchp_spdiftx_dev *dev)
@@ -318,16 +319,25 @@ static int mchp_spdiftx_trigger(struct snd_pcm_substream *substream, int cmd,
running = !!(mr & SPDIFTX_MR_TXEN_ENABLE);
switch (cmd) {
- case SNDRV_PCM_TRIGGER_START:
case SNDRV_PCM_TRIGGER_RESUME:
+ case SNDRV_PCM_TRIGGER_START:
+ regmap_write(dev->regmap, SPDIFTX_IER, dev->suspend_irq |
+ SPDIFTX_IR_TXUDR | SPDIFTX_IR_TXOVR);
+ dev->suspend_irq = 0;
+ fallthrough;
case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
if (!running) {
mr &= ~SPDIFTX_MR_TXEN_MASK;
mr |= SPDIFTX_MR_TXEN_ENABLE;
}
break;
- case SNDRV_PCM_TRIGGER_STOP:
case SNDRV_PCM_TRIGGER_SUSPEND:
+ regmap_read(dev->regmap, SPDIFTX_IMR, &dev->suspend_irq);
+ fallthrough;
+ case SNDRV_PCM_TRIGGER_STOP:
+ regmap_write(dev->regmap, SPDIFTX_IDR, dev->suspend_irq |
+ SPDIFTX_IR_TXUDR | SPDIFTX_IR_TXOVR);
+ fallthrough;
case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
if (running) {
mr &= ~SPDIFTX_MR_TXEN_MASK;
@@ -507,10 +517,6 @@ static int mchp_spdiftx_hw_params(struct snd_pcm_substream *substream,
dev_dbg(dev->dev, "%s(): GCLK set to %d\n", __func__,
params_rate(params) * SPDIFTX_GCLK_RATIO);
- /* Enable interrupts */
- regmap_write(dev->regmap, SPDIFTX_IER,
- SPDIFTX_IR_TXUDR | SPDIFTX_IR_TXOVR);
-
regmap_write(dev->regmap, SPDIFTX_MR, mr);
return 0;
@@ -521,9 +527,6 @@ static int mchp_spdiftx_hw_free(struct snd_pcm_substream *substream,
{
struct mchp_spdiftx_dev *dev = snd_soc_dai_get_drvdata(dai);
- regmap_write(dev->regmap, SPDIFTX_IDR,
- SPDIFTX_IR_TXUDR | SPDIFTX_IR_TXOVR);
-
return regmap_write(dev->regmap, SPDIFTX_CR,
SPDIFTX_CR_SWRST | SPDIFTX_CR_FCLR);
}
@@ -785,6 +788,7 @@ disable_pclk:
}
static const struct dev_pm_ops mchp_spdiftx_pm_ops = {
+ SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend, pm_runtime_force_resume)
RUNTIME_PM_OPS(mchp_spdiftx_runtime_suspend, mchp_spdiftx_runtime_resume,
NULL)
};