Merge tag 'sound-4.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull sound updates from Takashi Iwai:
 "Here is the first batch of updates for sound system on 4.4-rc1.

  Again at this time, the update looks fairly calm; no big changes in
  either ALSA core or ASoC infrastructures, rather all small cleanups,
  in addition to the new stuff as usual.

  The biggest changes are about Firewire sound devices.  It gained lots
  of new device support, and MIDI functionality.  Also there are updates
  for a few still working-in-progress stuff (topology API and ASoC
  skylake), too.  But overall, this update should give no big surprise.

  Some highlights are below:

  Core:
   - A few more Kconfig items for tinification; it's marked as EXPERT,
     so normal user should't be bothered :)
   - Refactoring with a new PCM hw_constraint helper
   - Removal of unused transfer_ack_{begin,end} PCM callbacks

  Firewire:
   - Restructuring of code subtree, lots of refactoring
   - Support AMDTP variants
   - New driver for Digidesign 002/003 family
   - Adds support for TASCAM FireOne to ALSA OXFW driver
   - Add MIDI support to TASCAM and Digi00x devices

  HD-Audio:
   - Automated modalias generation for codec drivers, finally
   - Improvement on heuristics for setting mixer name
   - A few fixes for longstanding bugs on Creative CA0132 cards
   - Addition of audio rate callback with i915 communication
   - Fix suspend issue on recent Dell XPS
   - Intel Lewisburg controller support

  ASoC:
   - Updates to the topology userspace interface
   - Big updates to the Renesas support (rcar)
   - More updates for supporting Intel Sky Lake systems
   - New drivers for Asahi Kasei Microdevices AK4613, Allwinnner A10,
     Cirrus Logic WM8998, Dialog DA7219, Nuvoton NAU8825, Rockchip
     S/PDIF, and Atmel class D amplifier

  USB-Audio:
   - A fix for newer Roland MIDI devices
   - Quirks and workarounds for Zoom R16/24 device

  Misc:
   - A few fixes for some old Cirrus CS46xx PCI sound boards
   - Yet another fixes for some old ESS Maestro3 PCI sound boards"

* tag 'sound-4.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (330 commits)
  ALSA: hda - Add Intel Lewisburg device IDs Audio
  ALSA: hda - Apply pin fixup for HP ProBook 6550b
  ALSA: hda - Fix lost 4k BDL boundary workaround
  ALSA: maestro3: Fix Allegro mute until master volume/mute is touched
  ALSA: maestro3: Enable docking support for Dell Latitude C810
  ALSA: firewire-digi00x: add another rawmidi character device for MIDI control ports
  ALSA: firewire-digi00x: add MIDI operations for MIDI control port
  ALSA: firewire-digi00x: rename identifiers of MIDI operation for physical ports
  ALSA: cs46xx: Fix suspend for all channels
  ALSA: cs46xx: Fix Duplicate front for CS4294 and CS4298 codecs
  ALSA: DocBook: Add soc-ops.c and soc-compress.c
  ALSA: hda - Add / fix kernel doc comments
  ALSA: Constify ratden/ratnum constraints
  ALSA: hda - Disable 64bit address for Creative HDA controllers
  ALSA: hda/realtek - Dell XPS one ALC3260 speaker no sound after resume back
  ALSA: hda/ca0132 - Convert leftover pr_info() and pr_err()
  ASoC: fsl: Use #ifdef instead of #if for CONFIG_PM_SLEEP
  ASoC: rt5645: Sort the order for register bit defines
  ASoC: dwc: add check for master/slave format
  ASoC: rt5645: Add the HWEQ for the speaker output
  ...

1 files changed, 73 insertions, 0 deletions

diff --git a/sound/soc/fsl/fsl_spdif.c b/sound/soc/fsl/fsl_spdif.c
index ab729f2426fe..3d59bb6719f2 100644
--- a/sound/soc/fsl/fsl_spdif.c
+++ b/sound/soc/fsl/fsl_spdif.c
@@ -108,6 +108,8 @@ struct fsl_spdif_priv {
 	struct clk *sysclk;
 	struct snd_dmaengine_dai_dma_data dma_params_tx;
 	struct snd_dmaengine_dai_dma_data dma_params_rx;
+	/* regcache for SRPC */
+	u32 regcache_srpc;
 };
 
 /* DPLL locked and lock loss interrupt handler */
@@ -300,6 +302,8 @@ static int spdif_softreset(struct fsl_spdif_priv *spdif_priv)
 	struct regmap *regmap = spdif_priv->regmap;
 	u32 val, cycle = 1000;
 
+	regcache_cache_bypass(regmap, true);
+
 	regmap_write(regmap, REG_SPDIF_SCR, SCR_SOFT_RESET);
 
 	/*
@@ -310,6 +314,10 @@ static int spdif_softreset(struct fsl_spdif_priv *spdif_priv)
 		regmap_read(regmap, REG_SPDIF_SCR, &val);
 	} while ((val & SCR_SOFT_RESET) && cycle--);
 
+	regcache_cache_bypass(regmap, false);
+	regcache_mark_dirty(regmap);
+	regcache_sync(regmap);
+
 	if (cycle)
 		return 0;
 	else
@@ -997,6 +1005,14 @@ static const struct snd_soc_component_driver fsl_spdif_component = {
 };
 
 /* FSL SPDIF REGMAP */
+static const struct reg_default fsl_spdif_reg_defaults[] = {
+	{0x0,  0x00000400},
+	{0x4,  0x00000000},
+	{0xc,  0x00000000},
+	{0x34, 0x00000000},
+	{0x38, 0x00000000},
+	{0x50, 0x00020f00},
+};
 
 static bool fsl_spdif_readable_reg(struct device *dev, unsigned int reg)
 {
@@ -1022,6 +1038,26 @@ static bool fsl_spdif_readable_reg(struct device *dev, unsigned int reg)
 	}
 }
 
+static bool fsl_spdif_volatile_reg(struct device *dev, unsigned int reg)
+{
+	switch (reg) {
+	case REG_SPDIF_SRPC:
+	case REG_SPDIF_SIS:
+	case REG_SPDIF_SRL:
+	case REG_SPDIF_SRR:
+	case REG_SPDIF_SRCSH:
+	case REG_SPDIF_SRCSL:
+	case REG_SPDIF_SRU:
+	case REG_SPDIF_SRQ:
+	case REG_SPDIF_STL:
+	case REG_SPDIF_STR:
+	case REG_SPDIF_SRFM:
+		return true;
+	default:
+		return false;
+	}
+}
+
 static bool fsl_spdif_writeable_reg(struct device *dev, unsigned int reg)
 {
 	switch (reg) {
@@ -1047,8 +1083,12 @@ static const struct regmap_config fsl_spdif_regmap_config = {
 	.val_bits = 32,
 
 	.max_register = REG_SPDIF_STC,
+	.reg_defaults = fsl_spdif_reg_defaults,
+	.num_reg_defaults = ARRAY_SIZE(fsl_spdif_reg_defaults),
 	.readable_reg = fsl_spdif_readable_reg,
+	.volatile_reg = fsl_spdif_volatile_reg,
 	.writeable_reg = fsl_spdif_writeable_reg,
+	.cache_type = REGCACHE_RBTREE,
 };
 
 static u32 fsl_spdif_txclk_caldiv(struct fsl_spdif_priv *spdif_priv,
@@ -1271,6 +1311,38 @@ static int fsl_spdif_probe(struct platform_device *pdev)
 	return ret;
 }
 
+#ifdef CONFIG_PM_SLEEP
+static int fsl_spdif_suspend(struct device *dev)
+{
+	struct fsl_spdif_priv *spdif_priv = dev_get_drvdata(dev);
+
+	regmap_read(spdif_priv->regmap, REG_SPDIF_SRPC,
+			&spdif_priv->regcache_srpc);
+
+	regcache_cache_only(spdif_priv->regmap, true);
+	regcache_mark_dirty(spdif_priv->regmap);
+
+	return 0;
+}
+
+static int fsl_spdif_resume(struct device *dev)
+{
+	struct fsl_spdif_priv *spdif_priv = dev_get_drvdata(dev);
+
+	regcache_cache_only(spdif_priv->regmap, false);
+
+	regmap_update_bits(spdif_priv->regmap, REG_SPDIF_SRPC,
+			SRPC_CLKSRC_SEL_MASK | SRPC_GAINSEL_MASK,
+			spdif_priv->regcache_srpc);
+
+	return regcache_sync(spdif_priv->regmap);
+}
+#endif /* CONFIG_PM_SLEEP */
+
+static const struct dev_pm_ops fsl_spdif_pm = {
+	SET_SYSTEM_SLEEP_PM_OPS(fsl_spdif_suspend, fsl_spdif_resume)
+};
+
 static const struct of_device_id fsl_spdif_dt_ids[] = {
 	{ .compatible = "fsl,imx35-spdif", },
 	{ .compatible = "fsl,vf610-spdif", },
@@ -1282,6 +1354,7 @@ static struct platform_driver fsl_spdif_driver = {
 	.driver = {
 		.name = "fsl-spdif-dai",
 		.of_match_table = fsl_spdif_dt_ids,
+		.pm = &fsl_spdif_pm,
 	},
 	.probe = fsl_spdif_probe,
 };