diff options
| author | Claudiu Beznea <claudiu.beznea@microchip.com> | 2022-11-17 14:37:50 +0200 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2022-11-18 11:57:06 +0000 |
| commit | abc7edb0329cd2eabc0b948f5e248c85f6268296 (patch) | |
| tree | 461428151bf79e6f7334c77b7562c4025f9384b6 /sound/soc/atmel/mchp-spdiftx.c | |
| parent | 4bf54ca60f99643cfaa3e5b532f139f6501f318e (diff) | |
| download | linux-stable-abc7edb0329cd2eabc0b948f5e248c85f6268296.tar.gz linux-stable-abc7edb0329cd2eabc0b948f5e248c85f6268296.tar.bz2 linux-stable-abc7edb0329cd2eabc0b948f5e248c85f6268296.zip | |
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/mchp-spdiftx.c')
| -rw-r--r-- | sound/soc/atmel/mchp-spdiftx.c | 22 |
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) }; |