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, 111 insertions, 0 deletions

diff --git a/sound/soc/sof/intel/hda-bus.c b/sound/soc/sof/intel/hda-bus.c
new file mode 100644
index 000000000000..a7e6d8227df6
--- /dev/null
+++ b/sound/soc/sof/intel/hda-bus.c
@@ -0,0 +1,111 @@
+// SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause)
+//
+// This file is provided under a dual BSD/GPLv2 license.  When using or
+// redistributing this file, you may do so under either license.
+//
+// Copyright(c) 2018 Intel Corporation. All rights reserved.
+//
+// Authors: Keyon Jie <yang.jie@linux.intel.com>
+
+#include <linux/io.h>
+#include <sound/hdaudio.h>
+#include "../sof-priv.h"
+#include "hda.h"
+
+#if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA)
+
+static const struct hdac_bus_ops bus_ops = {
+	.command = snd_hdac_bus_send_cmd,
+	.get_response = snd_hdac_bus_get_response,
+};
+
+#endif
+
+static void sof_hda_writel(u32 value, u32 __iomem *addr)
+{
+	writel(value, addr);
+}
+
+static u32 sof_hda_readl(u32 __iomem *addr)
+{
+	return readl(addr);
+}
+
+static void sof_hda_writew(u16 value, u16 __iomem *addr)
+{
+	writew(value, addr);
+}
+
+static u16 sof_hda_readw(u16 __iomem *addr)
+{
+	return readw(addr);
+}
+
+static void sof_hda_writeb(u8 value, u8 __iomem *addr)
+{
+	writeb(value, addr);
+}
+
+static u8 sof_hda_readb(u8 __iomem *addr)
+{
+	return readb(addr);
+}
+
+static int sof_hda_dma_alloc_pages(struct hdac_bus *bus, int type,
+				   size_t size, struct snd_dma_buffer *buf)
+{
+	return snd_dma_alloc_pages(type, bus->dev, size, buf);
+}
+
+static void sof_hda_dma_free_pages(struct hdac_bus *bus,
+				   struct snd_dma_buffer *buf)
+{
+	snd_dma_free_pages(buf);
+}
+
+static const struct hdac_io_ops io_ops = {
+	.reg_writel = sof_hda_writel,
+	.reg_readl = sof_hda_readl,
+	.reg_writew = sof_hda_writew,
+	.reg_readw = sof_hda_readw,
+	.reg_writeb = sof_hda_writeb,
+	.reg_readb = sof_hda_readb,
+	.dma_alloc_pages = sof_hda_dma_alloc_pages,
+	.dma_free_pages = sof_hda_dma_free_pages,
+};
+
+/*
+ * This can be used for both with/without hda link support.
+ */
+void sof_hda_bus_init(struct hdac_bus *bus, struct device *dev,
+		      const struct hdac_ext_bus_ops *ext_ops)
+{
+	memset(bus, 0, sizeof(*bus));
+	bus->dev = dev;
+
+	bus->io_ops = &io_ops;
+	INIT_LIST_HEAD(&bus->stream_list);
+
+	bus->irq = -1;
+	bus->ext_ops = ext_ops;
+
+	/*
+	 * There is only one HDA bus atm. keep the index as 0.
+	 * Need to fix when there are more than one HDA bus.
+	 */
+	bus->idx = 0;
+
+	spin_lock_init(&bus->reg_lock);
+
+#if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA)
+	INIT_LIST_HEAD(&bus->codec_list);
+	INIT_LIST_HEAD(&bus->hlink_list);
+
+	mutex_init(&bus->cmd_mutex);
+	mutex_init(&bus->lock);
+	bus->ops = &bus_ops;
+	INIT_WORK(&bus->unsol_work, snd_hdac_bus_process_unsol_events);
+	bus->cmd_dma_state = true;
+#endif
+
+}