Merge tag 'sound-3.5' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull sound updates from Takashi Iwai:
 "This is the first big chunk for 3.5 merges of sound stuff.

  There are a few big changes in different areas.  First off, the
  streaming logic of USB-audio endpoints has been largely rewritten for
  the better support of "implicit feedback".  If anything about USB got
  broken, this change has to be checked.

  For HD-audio, the resume procedure was changed; instead of delaying
  the resume of the hardware until the first use, now waking up
  immediately at resume.  This is for buggy BIOS.

  For ASoC, dynamic PCM support and the improved support for digital
  links between off-SoC devices are major framework changes.

  Some highlights are below:

  * HD-audio
   - Avoid accesses of invalid pin-control bits that may stall the codec
   - V-ref setup cleanups
   - Fix the races in power-saving code
   - Fix the races in codec cache hashes and connection lists
   - Split some common codes for BIOS auto-parser to hda_auto_parser.c
   - Changed the PM resume code to wake up immediately for buggy BIOS
   - Creative SoundCore3D support
   - Add Conexant CX20751/2/3/4 codec support

  * ASoC
   - Dynamic PCM support, allowing support for SoCs with internal
     routing through components with tight sequencing and formatting
     constraints within their internal paths or where there are multiple
     components connected with CPU managed DMA controllers inside the
     SoC.
   - Greatly improved support for direct digital links between off-SoC
     devices, providing a much simpler way of connecting things like
     digital basebands to CODECs.
   - Much more fine grained and robust locking, cleaning up some of the
     confusion that crept in with multi-component.
   - CPU support for nVidia Tegra 30 I2S and audio hub controllers and
     ST-Ericsson MSP I2S controolers
   - New CODEC drivers for Cirrus CS42L52, LAPIS Semiconductor ML26124,
     Texas Instruments LM49453.
   - Some regmap changes needed by the Tegra I2S driver.
   - mc13783 audio support.

  * Misc
   - Rewrite with module_pci_driver()
   - Xonar DGX support for snd-oxygen
   - Improvement of packet handling in snd-firewire driver
   - New USB-endpoint streaming logic
   - Enhanced M-audio FTU quirks and relevant cleanups
   - Increment the support of OSS devices to 256
   - snd-aloop accuracy improvement

  There are a few more pending changes for 3.5, but they will be sent
  slightly later as partly depending on the changes of DRM."

Fix up conflicts in regmap (due to duplicate patches, with some further
updates then having already come in from the regmap tree).  Also some
fairly trivial context conflicts in the imx and mcx soc drivers.

* tag 'sound-3.5' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (280 commits)
  ALSA: snd-usb: fix stream info output in /proc
  ALSA: pcm - Add proper state checks to snd_pcm_drain()
  ALSA: sh: Fix up namespace collision in sh_dac_audio.
  ALSA: hda/realtek - Fix unused variable compile warning
  ASoC: sh: fsi: enable chip specific data transfer mode
  ASoC: sh: fsi: call fsi_hw_startup/shutdown from fsi_dai_trigger()
  ASoC: sh: fsi: use same format for IN/OUT
  ASoC: sh: fsi: add fsi_version() and removed meaningless version check
  ASoC: sh: fsi: use register field macro name on IN/OUT_DMAC
  ASoC: tegra: Add machine driver for WM8753 codec
  ALSA: hda - Fix possible races of accesses to connection list array
  ASoC: OMAP: HDMI: Introduce codec
  ARM: mx31_3ds: Add sound support
  ASoC: imx-mc13783 cleanup
  mx31moboard: Add sound support
  ASoC: mc13783 codec cleanups
  ASoC: add imx-mc13783 sound support
  ASoC: Add mc13783 codec
  mfd: mc13xxx: add codec platform data
  ASoC: don't flip master of DT-instantiated DAI links
  ...

1 files changed, 195 insertions, 25 deletions

diff --git a/sound/soc/codecs/wm_hubs.c b/sound/soc/codecs/wm_hubs.c
index 6c028c4..dfe957a 100644
--- a/sound/soc/codecs/wm_hubs.c
+++ b/sound/soc/codecs/wm_hubs.c
@@ -109,12 +109,103 @@ irqreturn_t wm_hubs_dcs_done(int irq, void *data)
 }
 EXPORT_SYMBOL_GPL(wm_hubs_dcs_done);
 
+static bool wm_hubs_dac_hp_direct(struct snd_soc_codec *codec)
+{
+	int reg;
+
+	/* If we're going via the mixer we'll need to do additional checks */
+	reg = snd_soc_read(codec, WM8993_OUTPUT_MIXER1);
+	if (!(reg & WM8993_DACL_TO_HPOUT1L)) {
+		if (reg & ~WM8993_DACL_TO_MIXOUTL) {
+			dev_vdbg(codec->dev, "Analogue paths connected: %x\n",
+				 reg & ~WM8993_DACL_TO_HPOUT1L);
+			return false;
+		} else {
+			dev_vdbg(codec->dev, "HPL connected to mixer\n");
+		}
+	} else {
+		dev_vdbg(codec->dev, "HPL connected to DAC\n");
+	}
+
+	reg = snd_soc_read(codec, WM8993_OUTPUT_MIXER2);
+	if (!(reg & WM8993_DACR_TO_HPOUT1R)) {
+		if (reg & ~WM8993_DACR_TO_MIXOUTR) {
+			dev_vdbg(codec->dev, "Analogue paths connected: %x\n",
+				 reg & ~WM8993_DACR_TO_HPOUT1R);
+			return false;
+		} else {
+			dev_vdbg(codec->dev, "HPR connected to mixer\n");
+		}
+	} else {
+		dev_vdbg(codec->dev, "HPR connected to DAC\n");
+	}
+
+	return true;
+}
+
+struct wm_hubs_dcs_cache {
+	struct list_head list;
+	unsigned int left;
+	unsigned int right;
+	u16 dcs_cfg;
+};
+
+static bool wm_hubs_dcs_cache_get(struct snd_soc_codec *codec,
+				  struct wm_hubs_dcs_cache **entry)
+{
+	struct wm_hubs_data *hubs = snd_soc_codec_get_drvdata(codec);
+	struct wm_hubs_dcs_cache *cache;
+	unsigned int left, right;
+
+	left = snd_soc_read(codec, WM8993_LEFT_OUTPUT_VOLUME);
+	left &= WM8993_HPOUT1L_VOL_MASK;
+
+	right = snd_soc_read(codec, WM8993_RIGHT_OUTPUT_VOLUME);
+	right &= WM8993_HPOUT1R_VOL_MASK;
+
+	list_for_each_entry(cache, &hubs->dcs_cache, list) {
+		if (cache->left != left || cache->right != right)
+			continue;
+
+		*entry = cache;
+		return true;
+	}
+
+	return false;
+}
+
+static void wm_hubs_dcs_cache_set(struct snd_soc_codec *codec, u16 dcs_cfg)
+{
+	struct wm_hubs_data *hubs = snd_soc_codec_get_drvdata(codec);
+	struct wm_hubs_dcs_cache *cache;
+
+	if (hubs->no_cache_dac_hp_direct)
+		return;
+
+	cache = devm_kzalloc(codec->dev, sizeof(*cache), GFP_KERNEL);
+	if (!cache) {
+		dev_err(codec->dev, "Failed to allocate DCS cache entry\n");
+		return;
+	}
+
+	cache->left = snd_soc_read(codec, WM8993_LEFT_OUTPUT_VOLUME);
+	cache->left &= WM8993_HPOUT1L_VOL_MASK;
+
+	cache->right = snd_soc_read(codec, WM8993_RIGHT_OUTPUT_VOLUME);
+	cache->right &= WM8993_HPOUT1R_VOL_MASK;
+
+	cache->dcs_cfg = dcs_cfg;
+
+	list_add_tail(&cache->list, &hubs->dcs_cache);
+}
+
 /*
  * Startup calibration of the DC servo
  */
 static void calibrate_dc_servo(struct snd_soc_codec *codec)
 {
 	struct wm_hubs_data *hubs = snd_soc_codec_get_drvdata(codec);
+	struct wm_hubs_dcs_cache *cache;
 	s8 offset;
 	u16 reg, reg_l, reg_r, dcs_cfg, dcs_reg;
 
@@ -129,10 +220,11 @@ static void calibrate_dc_servo(struct snd_soc_codec *codec)
 
 	/* If we're using a digital only path and have a previously
 	 * callibrated DC servo offset stored then use that. */
-	if (hubs->class_w && hubs->class_w_dcs) {
-		dev_dbg(codec->dev, "Using cached DC servo offset %x\n",
-			hubs->class_w_dcs);
-		snd_soc_write(codec, dcs_reg, hubs->class_w_dcs);
+	if (wm_hubs_dac_hp_direct(codec) &&
+	    wm_hubs_dcs_cache_get(codec, &cache)) {
+		dev_dbg(codec->dev, "Using cached DCS offset %x for %d,%d\n",
+			cache->dcs_cfg, cache->left, cache->right);
+		snd_soc_write(codec, dcs_reg, cache->dcs_cfg);
 		wait_for_dc_servo(codec,
 				  WM8993_DCS_TRIG_DAC_WR_0 |
 				  WM8993_DCS_TRIG_DAC_WR_1);
@@ -207,8 +299,8 @@ static void calibrate_dc_servo(struct snd_soc_codec *codec)
 
 	/* Save the callibrated offset if we're in class W mode and
 	 * therefore don't have any analogue signal mixed in. */
-	if (hubs->class_w && !hubs->no_cache_class_w)
-		hubs->class_w_dcs = dcs_cfg;
+	if (wm_hubs_dac_hp_direct(codec))
+		wm_hubs_dcs_cache_set(codec, dcs_cfg);
 }
 
 /*
@@ -223,9 +315,6 @@ static int wm8993_put_dc_servo(struct snd_kcontrol *kcontrol,
 
 	ret = snd_soc_put_volsw(kcontrol, ucontrol);
 
-	/* Updating the analogue gains invalidates the DC servo cache */
-	hubs->class_w_dcs = 0;
-
 	/* If we're applying an offset correction then updating the
 	 * callibration would be likely to introduce further offsets. */
 	if (hubs->dcs_codes_l || hubs->dcs_codes_r || hubs->no_series_update)
@@ -530,6 +619,86 @@ static int lineout_event(struct snd_soc_dapm_widget *w,
 	return 0;
 }
 
+void wm_hubs_update_class_w(struct snd_soc_codec *codec)
+{
+	struct wm_hubs_data *hubs = snd_soc_codec_get_drvdata(codec);
+	int enable = WM8993_CP_DYN_V | WM8993_CP_DYN_FREQ;
+
+	if (!wm_hubs_dac_hp_direct(codec))
+		enable = false;
+
+	if (hubs->check_class_w_digital && !hubs->check_class_w_digital(codec))
+		enable = false;
+
+	dev_vdbg(codec->dev, "Class W %s\n", enable ? "enabled" : "disabled");
+
+	snd_soc_update_bits(codec, WM8993_CLASS_W_0,
+			    WM8993_CP_DYN_V | WM8993_CP_DYN_FREQ, enable);
+}
+EXPORT_SYMBOL_GPL(wm_hubs_update_class_w);
+
+#define WM_HUBS_SINGLE_W(xname, reg, shift, max, invert) \
+{	.iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
+	.info = snd_soc_info_volsw, \
+	.get = snd_soc_dapm_get_volsw, .put = class_w_put_volsw, \
+	.private_value =  SOC_SINGLE_VALUE(reg, shift, max, invert) }
+
+static int class_w_put_volsw(struct snd_kcontrol *kcontrol,
+			      struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_dapm_widget_list *wlist = snd_kcontrol_chip(kcontrol);
+	struct snd_soc_dapm_widget *widget = wlist->widgets[0];
+	struct snd_soc_codec *codec = widget->codec;
+	int ret;
+
+	ret = snd_soc_dapm_put_volsw(kcontrol, ucontrol);
+
+	wm_hubs_update_class_w(codec);
+
+	return ret;
+}
+
+#define WM_HUBS_ENUM_W(xname, xenum) \
+{	.iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
+	.info = snd_soc_info_enum_double, \
+	.get = snd_soc_dapm_get_enum_double, \
+	.put = class_w_put_double, \
+	.private_value = (unsigned long)&xenum }
+
+static int class_w_put_double(struct snd_kcontrol *kcontrol,
+			      struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_dapm_widget_list *wlist = snd_kcontrol_chip(kcontrol);
+	struct snd_soc_dapm_widget *widget = wlist->widgets[0];
+	struct snd_soc_codec *codec = widget->codec;
+	int ret;
+
+	ret = snd_soc_dapm_put_enum_double(kcontrol, ucontrol);
+
+	wm_hubs_update_class_w(codec);
+
+	return ret;
+}
+
+static const char *hp_mux_text[] = {
+	"Mixer",
+	"DAC",
+};
+
+static const struct soc_enum hpl_enum =
+	SOC_ENUM_SINGLE(WM8993_OUTPUT_MIXER1, 8, 2, hp_mux_text);
+
+const struct snd_kcontrol_new wm_hubs_hpl_mux =
+	WM_HUBS_ENUM_W("Left Headphone Mux", hpl_enum);
+EXPORT_SYMBOL_GPL(wm_hubs_hpl_mux);
+
+static const struct soc_enum hpr_enum =
+	SOC_ENUM_SINGLE(WM8993_OUTPUT_MIXER2, 8, 2, hp_mux_text);
+
+const struct snd_kcontrol_new wm_hubs_hpr_mux =
+	WM_HUBS_ENUM_W("Right Headphone Mux", hpr_enum);
+EXPORT_SYMBOL_GPL(wm_hubs_hpr_mux);
+
 static const struct snd_kcontrol_new in1l_pga[] = {
 SOC_DAPM_SINGLE("IN1LP Switch", WM8993_INPUT_MIXER2, 5, 1, 0),
 SOC_DAPM_SINGLE("IN1LN Switch", WM8993_INPUT_MIXER2, 4, 1, 0),
@@ -561,25 +730,25 @@ SOC_DAPM_SINGLE("IN1R Switch", WM8993_INPUT_MIXER4, 5, 1, 0),
 };
 
 static const struct snd_kcontrol_new left_output_mixer[] = {
-SOC_DAPM_SINGLE("Right Input Switch", WM8993_OUTPUT_MIXER1, 7, 1, 0),
-SOC_DAPM_SINGLE("Left Input Switch", WM8993_OUTPUT_MIXER1, 6, 1, 0),
-SOC_DAPM_SINGLE("IN2RN Switch", WM8993_OUTPUT_MIXER1, 5, 1, 0),
-SOC_DAPM_SINGLE("IN2LN Switch", WM8993_OUTPUT_MIXER1, 4, 1, 0),
-SOC_DAPM_SINGLE("IN2LP Switch", WM8993_OUTPUT_MIXER1, 1, 1, 0),
-SOC_DAPM_SINGLE("IN1R Switch", WM8993_OUTPUT_MIXER1, 3, 1, 0),
-SOC_DAPM_SINGLE("IN1L Switch", WM8993_OUTPUT_MIXER1, 2, 1, 0),
-SOC_DAPM_SINGLE("DAC Switch", WM8993_OUTPUT_MIXER1, 0, 1, 0),
+WM_HUBS_SINGLE_W("Right Input Switch", WM8993_OUTPUT_MIXER1, 7, 1, 0),
+WM_HUBS_SINGLE_W("Left Input Switch", WM8993_OUTPUT_MIXER1, 6, 1, 0),
+WM_HUBS_SINGLE_W("IN2RN Switch", WM8993_OUTPUT_MIXER1, 5, 1, 0),
+WM_HUBS_SINGLE_W("IN2LN Switch", WM8993_OUTPUT_MIXER1, 4, 1, 0),
+WM_HUBS_SINGLE_W("IN2LP Switch", WM8993_OUTPUT_MIXER1, 1, 1, 0),
+WM_HUBS_SINGLE_W("IN1R Switch", WM8993_OUTPUT_MIXER1, 3, 1, 0),
+WM_HUBS_SINGLE_W("IN1L Switch", WM8993_OUTPUT_MIXER1, 2, 1, 0),
+WM_HUBS_SINGLE_W("DAC Switch", WM8993_OUTPUT_MIXER1, 0, 1, 0),
 };
 
 static const struct snd_kcontrol_new right_output_mixer[] = {
-SOC_DAPM_SINGLE("Left Input Switch", WM8993_OUTPUT_MIXER2, 7, 1, 0),
-SOC_DAPM_SINGLE("Right Input Switch", WM8993_OUTPUT_MIXER2, 6, 1, 0),
-SOC_DAPM_SINGLE("IN2LN Switch", WM8993_OUTPUT_MIXER2, 5, 1, 0),
-SOC_DAPM_SINGLE("IN2RN Switch", WM8993_OUTPUT_MIXER2, 4, 1, 0),
-SOC_DAPM_SINGLE("IN1L Switch", WM8993_OUTPUT_MIXER2, 3, 1, 0),
-SOC_DAPM_SINGLE("IN1R Switch", WM8993_OUTPUT_MIXER2, 2, 1, 0),
-SOC_DAPM_SINGLE("IN2RP Switch", WM8993_OUTPUT_MIXER2, 1, 1, 0),
-SOC_DAPM_SINGLE("DAC Switch", WM8993_OUTPUT_MIXER2, 0, 1, 0),
+WM_HUBS_SINGLE_W("Left Input Switch", WM8993_OUTPUT_MIXER2, 7, 1, 0),
+WM_HUBS_SINGLE_W("Right Input Switch", WM8993_OUTPUT_MIXER2, 6, 1, 0),
+WM_HUBS_SINGLE_W("IN2LN Switch", WM8993_OUTPUT_MIXER2, 5, 1, 0),
+WM_HUBS_SINGLE_W("IN2RN Switch", WM8993_OUTPUT_MIXER2, 4, 1, 0),
+WM_HUBS_SINGLE_W("IN1L Switch", WM8993_OUTPUT_MIXER2, 3, 1, 0),
+WM_HUBS_SINGLE_W("IN1R Switch", WM8993_OUTPUT_MIXER2, 2, 1, 0),
+WM_HUBS_SINGLE_W("IN2RP Switch", WM8993_OUTPUT_MIXER2, 1, 1, 0),
+WM_HUBS_SINGLE_W("DAC Switch", WM8993_OUTPUT_MIXER2, 0, 1, 0),
 };
 
 static const struct snd_kcontrol_new earpiece_mixer[] = {
@@ -943,6 +1112,7 @@ int wm_hubs_add_analogue_routes(struct snd_soc_codec *codec,
 	struct wm_hubs_data *hubs = snd_soc_codec_get_drvdata(codec);
 	struct snd_soc_dapm_context *dapm = &codec->dapm;
 
+	INIT_LIST_HEAD(&hubs->dcs_cache);
 	init_completion(&hubs->dcs_done);
 
 	snd_soc_dapm_add_routes(dapm, analogue_routes,