Merge tag 'sound-5.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull sound updates from Takashi Iwai:
 "We had again a busy development cycle with many new drivers as well as
  lots of core improvements / cleanups. Let's go for highlights:

  ALSA core:

   - PCM locking scheme was refactored for reducing a global rwlock

   - PCM suspend is handled in the device type PM ops now; lots of
     explicit calls were reduced by this action

   - Cleanups about PCM buffer preallocation calls

   - Kill NULL device object in memory allocations

   - Lots of procfs API cleanups

  ASoC core:

   - Support for only powering up channels that are actively being used

   - Cleanups / fixes of topology API

  ASoC drivers:

   - MediaTek BTCVSD for a Bluetooth radio chip, which is the first such
     driver we've had upstream!

   - Quite a few improvements to simplify the generic card drivers,
     especially the merge of the SCU cards into the main generic drivers

   - Lots of fixes for probing on Intel systems to follow more standard
     styles

   - A big refresh and cleanup of the Samsung drivers

   - New drivers: Asahi Kasei Microdevices AK4497, Cirrus Logic CS4341
     and CS35L26, Google ChromeOS embedded controllers, Ingenic JZ4725B,
     MediaTek BTCVSD, MT8183 and MT6358, NXP MICFIL, Rockchip RK3328,
     Spreadtrum DMA controllers, Qualcomm WCD9335, Xilinx S/PDIF and PCM
     formatters

  ALSA drivers:

   - Improvements of Tegra HD-audio controller driver for supporting new
     chips

   - HD-audio codec quirks for ALC294 S4 resume, ASUS laptop, Chrome
     headset button support and Dell workstations

   - Improved DSD support on USB-audio

   - Quirk for MOTU MicroBook II USB-audio

   - Support for Fireface UCX support and Solid State Logic Duende
     Classic/Mini"

* tag 'sound-5.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (461 commits)
  ALSA: usb-audio: Add quirk for MOTU MicroBook II
  ASoC: stm32: i2s: skip useless write in slave mode
  ASoC: stm32: i2s: fix race condition in irq handler
  ASoC: stm32: i2s: remove useless callback
  ASoC: stm32: i2s: fix dma configuration
  ASoC: stm32: i2s: fix stream count management
  ASoC: stm32: i2s: fix 16 bit format support
  ASoC: stm32: i2s: fix IRQ clearing
  ASoC: qcom: Kconfig: fix dependency for sdm845
  ASoC: Intel: Boards: Add Maxim98373 support
  ASoC: rsnd: gen: fix SSI9 4/5/6/7 busif related register address
  ALSA: firewire-motu: fix construction of PCM frame for capture direction
  ALSA: bebob: use more identical mod_alias for Saffire Pro 10 I/O against Liquid Saffire 56
  ALSA: hda: Extend i915 component bind timeout
  ASoC: wm_adsp: Improve logging messages
  ASoC: wm_adsp: Add support for multiple compressed buffers
  ASoC: wm_adsp: Refactor compress stream initialisation
  ASoC: wm_adsp: Reorder some functions for improved clarity
  ASoC: wm_adsp: Factor out stripping padding from ADSP data
  ASoC: cs35l36: Fix an IS_ERR() vs NULL checking bug
  ...

1 files changed, 156 insertions, 19 deletions

diff --git a/sound/soc/ti/davinci-mcasp.c b/sound/soc/ti/davinci-mcasp.c
index a10fcb5963c6..a3a67a8f0f54 100644
--- a/sound/soc/ti/davinci-mcasp.c
+++ b/sound/soc/ti/davinci-mcasp.c
@@ -29,6 +29,7 @@
 #include <linux/platform_data/davinci_asp.h>
 #include <linux/math64.h>
 #include <linux/bitmap.h>
+#include <linux/gpio/driver.h>
 
 #include <sound/asoundef.h>
 #include <sound/core.h>
@@ -54,6 +55,7 @@ static u32 context_regs[] = {
 	DAVINCI_MCASP_AHCLKXCTL_REG,
 	DAVINCI_MCASP_AHCLKRCTL_REG,
 	DAVINCI_MCASP_PDIR_REG,
+	DAVINCI_MCASP_PFUNC_REG,
 	DAVINCI_MCASP_RXMASK_REG,
 	DAVINCI_MCASP_TXMASK_REG,
 	DAVINCI_MCASP_RXTDM_REG,
@@ -108,6 +110,10 @@ struct davinci_mcasp {
 	/* Used for comstraint setting on the second stream */
 	u32	channels;
 
+#ifdef CONFIG_GPIOLIB
+	struct gpio_chip gpio_chip;
+#endif
+
 #ifdef CONFIG_PM
 	struct davinci_mcasp_context context;
 #endif
@@ -818,9 +824,6 @@ static int mcasp_common_hw_param(struct davinci_mcasp *mcasp, int stream,
 	if (mcasp->version < MCASP_VERSION_3)
 		mcasp_set_bits(mcasp, DAVINCI_MCASP_PWREMUMGT_REG, MCASP_SOFT);
 
-	/* All PINS as McASP */
-	mcasp_set_reg(mcasp, DAVINCI_MCASP_PFUNC_REG, 0x00000000);
-
 	if (stream == SNDRV_PCM_STREAM_PLAYBACK) {
 		mcasp_set_reg(mcasp, DAVINCI_MCASP_TXSTAT_REG, 0xFFFFFFFF);
 		mcasp_clr_bits(mcasp, DAVINCI_MCASP_XEVTCTL_REG, TXDATADMADIS);
@@ -1845,6 +1848,147 @@ static u32 davinci_mcasp_rxdma_offset(struct davinci_mcasp_pdata *pdata)
 	return offset;
 }
 
+#ifdef CONFIG_GPIOLIB
+static int davinci_mcasp_gpio_request(struct gpio_chip *chip, unsigned offset)
+{
+	struct davinci_mcasp *mcasp = gpiochip_get_data(chip);
+
+	if (mcasp->num_serializer && offset < mcasp->num_serializer &&
+	    mcasp->serial_dir[offset] != INACTIVE_MODE) {
+		dev_err(mcasp->dev, "AXR%u pin is  used for audio\n", offset);
+		return -EBUSY;
+	}
+
+	/* Do not change the PIN yet */
+
+	return pm_runtime_get_sync(mcasp->dev);
+}
+
+static void davinci_mcasp_gpio_free(struct gpio_chip *chip, unsigned offset)
+{
+	struct davinci_mcasp *mcasp = gpiochip_get_data(chip);
+
+	/* Set the direction to input */
+	mcasp_clr_bits(mcasp, DAVINCI_MCASP_PDIR_REG, BIT(offset));
+
+	/* Set the pin as McASP pin */
+	mcasp_clr_bits(mcasp, DAVINCI_MCASP_PFUNC_REG, BIT(offset));
+
+	pm_runtime_put_sync(mcasp->dev);
+}
+
+static int davinci_mcasp_gpio_direction_out(struct gpio_chip *chip,
+					    unsigned offset, int value)
+{
+	struct davinci_mcasp *mcasp = gpiochip_get_data(chip);
+	u32 val;
+
+	if (value)
+		mcasp_set_bits(mcasp, DAVINCI_MCASP_PDOUT_REG, BIT(offset));
+	else
+		mcasp_clr_bits(mcasp, DAVINCI_MCASP_PDOUT_REG, BIT(offset));
+
+	val = mcasp_get_reg(mcasp, DAVINCI_MCASP_PFUNC_REG);
+	if (!(val & BIT(offset))) {
+		/* Set the pin as GPIO pin */
+		mcasp_set_bits(mcasp, DAVINCI_MCASP_PFUNC_REG, BIT(offset));
+
+		/* Set the direction to output */
+		mcasp_set_bits(mcasp, DAVINCI_MCASP_PDIR_REG, BIT(offset));
+	}
+
+	return 0;
+}
+
+static void davinci_mcasp_gpio_set(struct gpio_chip *chip, unsigned offset,
+				  int value)
+{
+	struct davinci_mcasp *mcasp = gpiochip_get_data(chip);
+
+	if (value)
+		mcasp_set_bits(mcasp, DAVINCI_MCASP_PDOUT_REG, BIT(offset));
+	else
+		mcasp_clr_bits(mcasp, DAVINCI_MCASP_PDOUT_REG, BIT(offset));
+}
+
+static int davinci_mcasp_gpio_direction_in(struct gpio_chip *chip,
+					   unsigned offset)
+{
+	struct davinci_mcasp *mcasp = gpiochip_get_data(chip);
+	u32 val;
+
+	val = mcasp_get_reg(mcasp, DAVINCI_MCASP_PFUNC_REG);
+	if (!(val & BIT(offset))) {
+		/* Set the direction to input */
+		mcasp_clr_bits(mcasp, DAVINCI_MCASP_PDIR_REG, BIT(offset));
+
+		/* Set the pin as GPIO pin */
+		mcasp_set_bits(mcasp, DAVINCI_MCASP_PFUNC_REG, BIT(offset));
+	}
+
+	return 0;
+}
+
+static int davinci_mcasp_gpio_get(struct gpio_chip *chip, unsigned offset)
+{
+	struct davinci_mcasp *mcasp = gpiochip_get_data(chip);
+	u32 val;
+
+	val = mcasp_get_reg(mcasp, DAVINCI_MCASP_PDSET_REG);
+	if (val & BIT(offset))
+		return 1;
+
+	return 0;
+}
+
+static int davinci_mcasp_gpio_get_direction(struct gpio_chip *chip,
+					    unsigned offset)
+{
+	struct davinci_mcasp *mcasp = gpiochip_get_data(chip);
+	u32 val;
+
+	val = mcasp_get_reg(mcasp, DAVINCI_MCASP_PDIR_REG);
+	if (val & BIT(offset))
+		return 0;
+
+	return 1;
+}
+
+static const struct gpio_chip davinci_mcasp_template_chip = {
+	.owner			= THIS_MODULE,
+	.request		= davinci_mcasp_gpio_request,
+	.free			= davinci_mcasp_gpio_free,
+	.direction_output	= davinci_mcasp_gpio_direction_out,
+	.set			= davinci_mcasp_gpio_set,
+	.direction_input	= davinci_mcasp_gpio_direction_in,
+	.get			= davinci_mcasp_gpio_get,
+	.get_direction		= davinci_mcasp_gpio_get_direction,
+	.base			= -1,
+	.ngpio			= 32,
+};
+
+static int davinci_mcasp_init_gpiochip(struct davinci_mcasp *mcasp)
+{
+	if (!of_property_read_bool(mcasp->dev->of_node, "gpio-controller"))
+		return 0;
+
+	mcasp->gpio_chip = davinci_mcasp_template_chip;
+	mcasp->gpio_chip.label = dev_name(mcasp->dev);
+	mcasp->gpio_chip.parent = mcasp->dev;
+#ifdef CONFIG_OF_GPIO
+	mcasp->gpio_chip.of_node = mcasp->dev->of_node;
+#endif
+
+	return devm_gpiochip_add_data(mcasp->dev, &mcasp->gpio_chip, mcasp);
+}
+
+#else /* CONFIG_GPIOLIB */
+static inline int davinci_mcasp_init_gpiochip(struct davinci_mcasp *mcasp)
+{
+	return 0;
+}
+#endif /* CONFIG_GPIOLIB */
+
 static int davinci_mcasp_probe(struct platform_device *pdev)
 {
 	struct snd_dmaengine_dai_dma_data *dma_data;
@@ -2069,6 +2213,15 @@ static int davinci_mcasp_probe(struct platform_device *pdev)
 
 	mcasp_reparent_fck(pdev);
 
+	/* All PINS as McASP */
+	pm_runtime_get_sync(mcasp->dev);
+	mcasp_set_reg(mcasp, DAVINCI_MCASP_PFUNC_REG, 0x00000000);
+	pm_runtime_put(mcasp->dev);
+
+	ret = davinci_mcasp_init_gpiochip(mcasp);
+	if (ret)
+		goto err;
+
 	ret = devm_snd_soc_register_component(&pdev->dev,
 					&davinci_mcasp_component,
 					&davinci_mcasp_dai[pdata->op_mode], 1);
@@ -2079,26 +2232,10 @@ static int davinci_mcasp_probe(struct platform_device *pdev)
 	ret = davinci_mcasp_get_dma_type(mcasp);
 	switch (ret) {
 	case PCM_EDMA:
-#if IS_BUILTIN(CONFIG_SND_SOC_TI_EDMA_PCM) || \
-	(IS_MODULE(CONFIG_SND_SOC_DAVINCI_MCASP) && \
-	 IS_MODULE(CONFIG_SND_SOC_TI_EDMA_PCM))
 		ret = edma_pcm_platform_register(&pdev->dev);
-#else
-		dev_err(&pdev->dev, "Missing SND_EDMA_SOC\n");
-		ret = -EINVAL;
-		goto err;
-#endif
 		break;
 	case PCM_SDMA:
-#if IS_BUILTIN(CONFIG_SND_SOC_TI_SDMA_PCM) || \
-	(IS_MODULE(CONFIG_SND_SOC_DAVINCI_MCASP) && \
-	 IS_MODULE(CONFIG_SND_SOC_TI_SDMA_PCM))
 		ret = sdma_pcm_platform_register(&pdev->dev, NULL, NULL);
-#else
-		dev_err(&pdev->dev, "Missing SND_SDMA_SOC\n");
-		ret = -EINVAL;
-		goto err;
-#endif
 		break;
 	default:
 		dev_err(&pdev->dev, "No DMA controller found (%d)\n", ret);