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author | Linus Torvalds <torvalds@linux-foundation.org> | 2023-02-22 21:29:05 +0300 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2023-02-22 21:29:05 +0300 |
commit | 064d7dcf51a82b480e953a15cca47e5df0426502 (patch) | |
tree | b34ab58ee35e827c14071024dfc79fe50a5f31e6 /sound/soc/atmel/mchp-pdmc.c | |
parent | f3dd0c53370e70c0f9b7e931bbec12916f3bb8cc (diff) | |
parent | 7933b90b42896f5b6596e6a829bb31c5121fc2a9 (diff) | |
download | linux-064d7dcf51a82b480e953a15cca47e5df0426502.tar.xz |
Merge tag 'sound-6.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound updates from Takashi Iwai:
"The majority of works in this cycle are about ASoC spread over trees.
Most of them are for new devices and cleanups / refactoring works, and
not much significant changes are seen in the core side.
Below are some highlights:
ASoC:
- Continued refactoring to move into common helper functions
- Lots of DT schema conversons and stylistic nits
- Continued work on building out the new SOF IPC4 scheme
- Continued work for Intel AVS
- New drivers for Awinc AT88395, Infineon PEB2466, Iron Device
SMA1303, Mediatek MT8188, Realtek RT712, Renesas IDT821034,
Samsung/Tesla FSD SoC I2S, and TI TAS5720A-Q1
ALSA:
- A few cleanups to make the remove callbacks to void returns
- FireWire refactoring and enhancements
- PCM kselftest enhancements"
* tag 'sound-6.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (398 commits)
ALSA: hda/hdmi: Register with vga_switcheroo on Dual GPU Macbooks
ASoC: soc-ac97: Return correct error codes
ASoC: soc-dapm.h: fixup warning struct snd_pcm_substream not declared
ASoC: cs35l45: Remove separate namespace for tables
ASoC: cs35l45: Remove separate tables module
ASoC: soc-ac97: Convert to agnostic GPIO API
ASoC: dt-bindings: renesas,rsnd.yaml: drop "dmas/dma-names" from "rcar_sound,ssi"
ALSA: hda: cs35l41: Enable Amp High Pass Filter
ALSA: hda: cs35l41: Ensure firmware/tuning pairs are always loaded
ALSA: hda: cs35l41: Correct error condition handling
ASoC: codecs: wcd934x: Use min macro for comparison and assignment
ASoC: Intel: Skylake: Fix struct definition
ASoC: tlv320adcx140: extend list of supported samplerates
ASoC: imx-pcm-rpmsg: Remove unused variable
SoC: rt5682s: Disable jack detection interrupt during suspend
ASoC: SOF: Intel: hda-dsp: Set streaming flag for d0i3
ASoC: SOF: Intel: Enable d0i3 work for ipc4
ASoC: SOF: ipc4: Wake up dsp core before sending ipc msg
ASoC: SOF: Intel: hda-dsp: use set_pm_gate according to ipc version
ASoC: SOF: Introduce a new set_pm_gate() IPC PM op
...
Diffstat (limited to 'sound/soc/atmel/mchp-pdmc.c')
-rw-r--r-- | sound/soc/atmel/mchp-pdmc.c | 145 |
1 files changed, 97 insertions, 48 deletions
diff --git a/sound/soc/atmel/mchp-pdmc.c b/sound/soc/atmel/mchp-pdmc.c index 44aefbd5b62c..cf4084dcbd5e 100644 --- a/sound/soc/atmel/mchp-pdmc.c +++ b/sound/soc/atmel/mchp-pdmc.c @@ -11,6 +11,7 @@ #include <linux/clk.h> #include <linux/module.h> #include <linux/of.h> +#include <linux/pm_runtime.h> #include <linux/regmap.h> #include <sound/core.h> @@ -112,10 +113,10 @@ struct mchp_pdmc { struct clk *pclk; struct clk *gclk; u32 pdmcen; + u32 suspend_irq; int mic_no; int sinc_order; bool audio_filter_en; - u8 gclk_enabled:1; }; static const char *const mchp_pdmc_sinc_filter_order_text[] = { @@ -454,13 +455,6 @@ static int mchp_pdmc_startup(struct snd_pcm_substream *substream, struct snd_soc_dai *dai) { struct mchp_pdmc *dd = snd_soc_dai_get_drvdata(dai); - int ret; - - ret = clk_prepare_enable(dd->pclk); - if (ret) { - dev_err(dd->dev, "failed to enable the peripheral clock: %d\n", ret); - return ret; - } regmap_write(dd->regmap, MCHP_PDMC_CR, MCHP_PDMC_CR_SWRST); @@ -470,14 +464,6 @@ static int mchp_pdmc_startup(struct snd_pcm_substream *substream, return 0; } -static void mchp_pdmc_shutdown(struct snd_pcm_substream *substream, - struct snd_soc_dai *dai) -{ - struct mchp_pdmc *dd = snd_soc_dai_get_drvdata(dai); - - clk_disable_unprepare(dd->pclk); -} - static int mchp_pdmc_dai_probe(struct snd_soc_dai *dai) { struct mchp_pdmc *dd = snd_soc_dai_get_drvdata(dai); @@ -594,11 +580,6 @@ static int mchp_pdmc_hw_params(struct snd_pcm_substream *substream, cfgr_val |= MCHP_PDMC_CFGR_BSSEL(i); } - if (dd->gclk_enabled) { - clk_disable_unprepare(dd->gclk); - dd->gclk_enabled = 0; - } - for (osr_start = dd->audio_filter_en ? 64 : 8; osr_start <= 256 && best_diff_rate; osr_start *= 2) { long round_rate; @@ -620,8 +601,12 @@ static int mchp_pdmc_hw_params(struct snd_pcm_substream *substream, return -EINVAL; } + /* CLK is enabled by runtime PM. */ + clk_disable_unprepare(dd->gclk); + /* set the rate */ ret = clk_set_rate(dd->gclk, gclk_rate); + clk_prepare_enable(dd->gclk); if (ret) { dev_err(comp->dev, "unable to set rate %lu to GCLK: %d\n", gclk_rate, ret); @@ -636,9 +621,6 @@ static int mchp_pdmc_hw_params(struct snd_pcm_substream *substream, mr_val |= MCHP_PDMC_MR_CHUNK(dd->addr.maxburst); dev_dbg(comp->dev, "maxburst set to %d\n", dd->addr.maxburst); - clk_prepare_enable(dd->gclk); - dd->gclk_enabled = 1; - snd_soc_component_update_bits(comp, MCHP_PDMC_MR, MCHP_PDMC_MR_OSR_MASK | MCHP_PDMC_MR_SINCORDER_MASK | @@ -650,19 +632,6 @@ static int mchp_pdmc_hw_params(struct snd_pcm_substream *substream, return 0; } -static int mchp_pdmc_hw_free(struct snd_pcm_substream *substream, - struct snd_soc_dai *dai) -{ - struct mchp_pdmc *dd = snd_soc_dai_get_drvdata(dai); - - if (dd->gclk_enabled) { - clk_disable_unprepare(dd->gclk); - dd->gclk_enabled = 0; - } - - return 0; -} - static int mchp_pdmc_trigger(struct snd_pcm_substream *substream, int cmd, struct snd_soc_dai *dai) { @@ -673,22 +642,27 @@ static int mchp_pdmc_trigger(struct snd_pcm_substream *substream, #endif switch (cmd) { - case SNDRV_PCM_TRIGGER_START: case SNDRV_PCM_TRIGGER_RESUME: - case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: + case SNDRV_PCM_TRIGGER_START: /* Enable overrun and underrun error interrupts */ - regmap_write(dd->regmap, MCHP_PDMC_IER, + regmap_write(dd->regmap, MCHP_PDMC_IER, dd->suspend_irq | MCHP_PDMC_IR_RXOVR | MCHP_PDMC_IR_RXUDR); + dd->suspend_irq = 0; + fallthrough; + case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: snd_soc_component_update_bits(cpu, MCHP_PDMC_MR, MCHP_PDMC_MR_PDMCEN_MASK, dd->pdmcen); break; - case SNDRV_PCM_TRIGGER_STOP: case SNDRV_PCM_TRIGGER_SUSPEND: - case SNDRV_PCM_TRIGGER_PAUSE_PUSH: + regmap_read(dd->regmap, MCHP_PDMC_IMR, &dd->suspend_irq); + fallthrough; + case SNDRV_PCM_TRIGGER_STOP: /* Disable overrun and underrun error interrupts */ - regmap_write(dd->regmap, MCHP_PDMC_IDR, + regmap_write(dd->regmap, MCHP_PDMC_IDR, dd->suspend_irq | MCHP_PDMC_IR_RXOVR | MCHP_PDMC_IR_RXUDR); + fallthrough; + case SNDRV_PCM_TRIGGER_PAUSE_PUSH: snd_soc_component_update_bits(cpu, MCHP_PDMC_MR, MCHP_PDMC_MR_PDMCEN_MASK, 0); break; @@ -711,9 +685,7 @@ static int mchp_pdmc_trigger(struct snd_pcm_substream *substream, static const struct snd_soc_dai_ops mchp_pdmc_dai_ops = { .set_fmt = mchp_pdmc_set_fmt, .startup = mchp_pdmc_startup, - .shutdown = mchp_pdmc_shutdown, .hw_params = mchp_pdmc_hw_params, - .hw_free = mchp_pdmc_hw_free, .trigger = mchp_pdmc_trigger, }; @@ -864,6 +836,7 @@ static const struct regmap_config mchp_pdmc_regmap_config = { .readable_reg = mchp_pdmc_readable_reg, .writeable_reg = mchp_pdmc_writeable_reg, .precious_reg = mchp_pdmc_precious_reg, + .cache_type = REGCACHE_FLAT, }; static int mchp_pdmc_dt_init(struct mchp_pdmc *dd) @@ -970,6 +943,49 @@ static struct snd_dmaengine_pcm_config mchp_pdmc_config = { .prepare_slave_config = snd_dmaengine_pcm_prepare_slave_config, }; +static int mchp_pdmc_runtime_suspend(struct device *dev) +{ + struct mchp_pdmc *dd = dev_get_drvdata(dev); + + regcache_cache_only(dd->regmap, true); + + clk_disable_unprepare(dd->gclk); + clk_disable_unprepare(dd->pclk); + + return 0; +} + +static int mchp_pdmc_runtime_resume(struct device *dev) +{ + struct mchp_pdmc *dd = dev_get_drvdata(dev); + int ret; + + ret = clk_prepare_enable(dd->pclk); + if (ret) { + dev_err(dd->dev, + "failed to enable the peripheral clock: %d\n", ret); + return ret; + } + ret = clk_prepare_enable(dd->gclk); + if (ret) { + dev_err(dd->dev, + "failed to enable generic clock: %d\n", ret); + goto disable_pclk; + } + + regcache_cache_only(dd->regmap, false); + regcache_mark_dirty(dd->regmap); + ret = regcache_sync(dd->regmap); + if (ret) { + regcache_cache_only(dd->regmap, true); + clk_disable_unprepare(dd->gclk); +disable_pclk: + clk_disable_unprepare(dd->pclk); + } + + return ret; +} + static int mchp_pdmc_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; @@ -1039,18 +1055,25 @@ static int mchp_pdmc_probe(struct platform_device *pdev) dd->addr.addr = (dma_addr_t)res->start + MCHP_PDMC_RHR; platform_set_drvdata(pdev, dd); + pm_runtime_enable(dd->dev); + if (!pm_runtime_enabled(dd->dev)) { + ret = mchp_pdmc_runtime_resume(dd->dev); + if (ret) + return ret; + } + /* register platform */ ret = devm_snd_dmaengine_pcm_register(dev, &mchp_pdmc_config, 0); if (ret) { dev_err(dev, "could not register platform: %d\n", ret); - return ret; + goto pm_runtime_suspend; } ret = devm_snd_soc_register_component(dev, &mchp_pdmc_dai_component, &mchp_pdmc_dai, 1); if (ret) { dev_err(dev, "could not register CPU DAI: %d\n", ret); - return ret; + goto pm_runtime_suspend; } /* print IP version */ @@ -1059,6 +1082,25 @@ static int mchp_pdmc_probe(struct platform_device *pdev) version & MCHP_PDMC_VER_VERSION); return 0; + +pm_runtime_suspend: + if (!pm_runtime_status_suspended(dd->dev)) + mchp_pdmc_runtime_suspend(dd->dev); + pm_runtime_disable(dd->dev); + + return ret; +} + +static int mchp_pdmc_remove(struct platform_device *pdev) +{ + struct mchp_pdmc *dd = platform_get_drvdata(pdev); + + if (!pm_runtime_status_suspended(dd->dev)) + mchp_pdmc_runtime_suspend(dd->dev); + + pm_runtime_disable(dd->dev); + + return 0; } static const struct of_device_id mchp_pdmc_of_match[] = { @@ -1070,13 +1112,20 @@ static const struct of_device_id mchp_pdmc_of_match[] = { }; MODULE_DEVICE_TABLE(of, mchp_pdmc_of_match); +static const struct dev_pm_ops mchp_pdmc_pm_ops = { + SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend, pm_runtime_force_resume) + RUNTIME_PM_OPS(mchp_pdmc_runtime_suspend, mchp_pdmc_runtime_resume, + NULL) +}; + static struct platform_driver mchp_pdmc_driver = { .driver = { .name = "mchp-pdmc", .of_match_table = of_match_ptr(mchp_pdmc_of_match), - .pm = &snd_soc_pm_ops, + .pm = pm_ptr(&mchp_pdmc_pm_ops), }, .probe = mchp_pdmc_probe, + .remove = mchp_pdmc_remove, }; module_platform_driver(mchp_pdmc_driver); |