Merge tag 'sound-5.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull sound updates from Takashi Iwai:
 "The most significant changes at this cycle are the Sound Open Firmware
  support from Intel for the common DSP framework along with its support
  for Intel platforms. It's a door opened to a real "free" firmware (in
  the sense of FOSS), and other parties show interests in it.

  In addition to SOF, we've got a bunch of updates and fixes as usual.
  Some highlights are below.

  ALSA core:
   - Cleanups and fixes in ALSA timer code to cover some races spotted
     by syzkaller
   - Cleanups and fixes in ALSA sequencer code to cover some races,
     again unsurprisingly, spotted by syzkaller
   - Optimize the common page allocation helper with alloc_pages_exact()

  ASoC:
   - Add SOF core support, as well as Intel SOF platform support
   - Generic card driver improvements: support for MCLK/sample rate
     ratio and pin switches
   - A big set of improvements to TLV320AIC32x4 drivers
   - New drivers for Freescale audio mixers, several Intel machines,
     several Mediatek machines, Meson G12A, Spreadtrum compressed audio
     and DMA devices

  HD-audio:
   - A few Realtek codec fixes for reducing pop noises
   - Quirks for Chromebooks
   - Workaround for faulty connection report on AMD/Nvidia HDMI

  Others:
   - A quirk for Focusrite Scarlett Solo USB-audio
   - Add support for MOTU 8pre FireWire
   - 24bit sample format support in aloop
   - GUS patch format support (finally, over a decade) in native emux
     synth code"

* tag 'sound-5.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (375 commits)
  ASoC: SOF: Fix unused variable warnings
  ALSA: line6: toneport: Fix broken usage of timer for delayed execution
  ALSA: aica: Fix a long-time build breakage
  ALSA: hda/realtek - Support low power consumption for ALC256
  ASoC: stm32: i2s: update pcm hardware constraints
  ASoC: codec: hdac_hdmi: no checking monitor in hw_params
  ASoC: mediatek: mt6358: save PGA for mixer control
  ASoC: mediatek: mt6358: save output volume for mixer controls
  ASoC: mediatek: mt6358: initialize setting when ramping volume
  ASoC: SOF: core: fix undefined nocodec reference
  ASoC: SOF: xtensa: fix undefined references
  ASoC: SOF: Propagate sof_get_ctrl_copy_params() error properly
  ALSA: hdea/realtek - Headset fixup for System76 Gazelle (gaze14)
  ALSA: hda/intel: add CometLake PCI IDs
  ALSA: hda/realtek - Support low power consumption for ALC295
  ASoC: rockchip: Fix an uninitialized variable compile warning
  ASoC: SOF: Fix a compile warning with CONFIG_PCI=n
  ASoC: da7219: Fix a compile warning at CONFIG_COMMON_CLK=n
  ASoC: sound/soc/sof/: fix kconfig dependency warning
  ASoC: stm32: spdifrx: change trace level on iec control
  ...

1 files changed, 48 insertions, 20 deletions

diff --git a/sound/soc/adi/axi-i2s.c b/sound/soc/adi/axi-i2s.c
index 4c23381727a1..273c543e8ff3 100644
--- a/sound/soc/adi/axi-i2s.c
+++ b/sound/soc/adi/axi-i2s.c
@@ -43,6 +43,9 @@ struct axi_i2s {
 	struct clk *clk;
 	struct clk *clk_ref;
 
+	bool   has_capture;
+	bool   has_playback;
+
 	struct snd_soc_dai_driver dai_driver;
 
 	struct snd_dmaengine_dai_dma_data capture_dma_data;
@@ -136,8 +139,10 @@ static int axi_i2s_dai_probe(struct snd_soc_dai *dai)
 {
 	struct axi_i2s *i2s = snd_soc_dai_get_drvdata(dai);
 
-	snd_soc_dai_init_dma_data(dai, &i2s->playback_dma_data,
-		&i2s->capture_dma_data);
+	snd_soc_dai_init_dma_data(
+		dai,
+		i2s->has_playback ? &i2s->playback_dma_data : NULL,
+		i2s->has_capture  ? &i2s->capture_dma_data  : NULL);
 
 	return 0;
 }
@@ -151,18 +156,6 @@ static const struct snd_soc_dai_ops axi_i2s_dai_ops = {
 
 static struct snd_soc_dai_driver axi_i2s_dai = {
 	.probe = axi_i2s_dai_probe,
-	.playback = {
-		.channels_min = 2,
-		.channels_max = 2,
-		.rates = SNDRV_PCM_RATE_KNOT,
-		.formats = SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_U32_LE,
-	},
-	.capture = {
-		.channels_min = 2,
-		.channels_max = 2,
-		.rates = SNDRV_PCM_RATE_KNOT,
-		.formats = SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_U32_LE,
-	},
 	.ops = &axi_i2s_dai_ops,
 	.symmetric_rates = 1,
 };
@@ -178,6 +171,19 @@ static const struct regmap_config axi_i2s_regmap_config = {
 	.max_register = AXI_I2S_REG_STATUS,
 };
 
+static void axi_i2s_parse_of(struct axi_i2s *i2s, const struct device_node *np)
+{
+	struct property *dma_names;
+	const char *dma_name;
+
+	of_property_for_each_string(np, "dma-names", dma_names, dma_name) {
+		if (strcmp(dma_name, "rx") == 0)
+			i2s->has_capture = true;
+		if (strcmp(dma_name, "tx") == 0)
+			i2s->has_playback = true;
+	}
+}
+
 static int axi_i2s_probe(struct platform_device *pdev)
 {
 	struct resource *res;
@@ -191,6 +197,8 @@ static int axi_i2s_probe(struct platform_device *pdev)
 
 	platform_set_drvdata(pdev, i2s);
 
+	axi_i2s_parse_of(i2s, pdev->dev.of_node);
+
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	base = devm_ioremap_resource(&pdev->dev, res);
 	if (IS_ERR(base))
@@ -213,13 +221,29 @@ static int axi_i2s_probe(struct platform_device *pdev)
 	if (ret)
 		return ret;
 
-	i2s->playback_dma_data.addr = res->start + AXI_I2S_REG_TX_FIFO;
-	i2s->playback_dma_data.addr_width = 4;
-	i2s->playback_dma_data.maxburst = 1;
+	if (i2s->has_playback) {
+		axi_i2s_dai.playback.channels_min = 2;
+		axi_i2s_dai.playback.channels_max = 2;
+		axi_i2s_dai.playback.rates = SNDRV_PCM_RATE_KNOT;
+		axi_i2s_dai.playback.formats =
+			SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_U32_LE;
+
+		i2s->playback_dma_data.addr = res->start + AXI_I2S_REG_TX_FIFO;
+		i2s->playback_dma_data.addr_width = 4;
+		i2s->playback_dma_data.maxburst = 1;
+	}
+
+	if (i2s->has_capture) {
+		axi_i2s_dai.capture.channels_min = 2;
+		axi_i2s_dai.capture.channels_max = 2;
+		axi_i2s_dai.capture.rates = SNDRV_PCM_RATE_KNOT;
+		axi_i2s_dai.capture.formats =
+			SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_U32_LE;
 
-	i2s->capture_dma_data.addr = res->start + AXI_I2S_REG_RX_FIFO;
-	i2s->capture_dma_data.addr_width = 4;
-	i2s->capture_dma_data.maxburst = 1;
+		i2s->capture_dma_data.addr = res->start + AXI_I2S_REG_RX_FIFO;
+		i2s->capture_dma_data.addr_width = 4;
+		i2s->capture_dma_data.maxburst = 1;
+	}
 
 	i2s->ratnum.num = clk_get_rate(i2s->clk_ref) / 2 / AXI_I2S_BITS_PER_FRAME;
 	i2s->ratnum.den_step = 1;
@@ -240,6 +264,10 @@ static int axi_i2s_probe(struct platform_device *pdev)
 	if (ret)
 		goto err_clk_disable;
 
+	dev_info(&pdev->dev, "probed, capture %s, playback %s\n",
+		 i2s->has_capture ? "enabled" : "disabled",
+		 i2s->has_playback ? "enabled" : "disabled");
+
 	return 0;
 
 err_clk_disable: