Merge tag 'sound-4.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull sound updates from Takashi Iwai:
 "It was a busy development cycle at this time, as you can see a wide
  range of changes in diffstat.  There are no big changes but many
  refactoring and improvements.  Here we go some highlights:

  ALSA core:
   - Procfs codes were cleaned up to use seq_file
   - Procfs can be opt out via Kconfig (only for EXPERT)
   - Two types of jack API were unified finally; now both kctl and input
     jack devs are handled via a single function call.

  HD-audio:
   - Continued code restructuring for the future ASoC driver; now HDA
     controller driver is split to a core helper module.
   - Preliminary codes for Skylake audio support in HDA core.
   - Proper i915 gfx power well management for SKL & co
   - Enabled runtime PM as default for Intel HDMI/DP codecs
   - Newer Tegra chip supports
   - More quirks for Dell headsets, Alienware (with CA0132), etc.
   - A couple of DRM ELD helper API functions

  ASoC:
   - Support for loading ASoC topology maps from firmware, intended to
     be used to allow self-describing DSP firmware images to be built
     which can map controls added by the DSP to userspace without the
     kernel needing to know about individual DSP firmwares
   - Lots of refactoring to avoid direct access to snd_soc_codec where
     it's not needed supporting future refactoring
   - Big refactoring, cleanup and enhancement for the Wolfson ADSP
     driver
   - Cleanup series for TI TAS2552 and R-CAR drivers
   - Fixes and improvements on RT56xx codecs
   - Support for TI TAS571x power amplifiers
   - Support for Qualcomm APQ8016 and ZTE ZX296702 SoCs
   - Support for x86 systems with RT5650 and Qualcomm Storm
   - Support for Mediatek AFE (Audio Front End) unit
   - Other various small fixes to ASoC codec drivers

  Firewire:
   - Enhanced to allow non-blocking streams to use timestamp
     synchronization
   - Improve support for DM1500 and BeBoBv3

  Misc:
   - Cleanup of old pci API functions over all PCI sound drivers
   - Fix long-standing regression of the old powermac i2c setup"

* tag 'sound-4.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (533 commits)
  ALSA: pcm: Fix pcm_class sysfs output
  ALSA: hda-beep: Update authors dead email address
  ASoC: wm_adsp: Move DSP Rate controls into the codec
  ASoC: wm8995: Fix setting sysclk for WM8995_SYSCLK_MCLK2 case
  ALSA: hda: provide default bus io ops extended hdac
  ALSA: hda: add hda link cleanup routine
  ALSA: hda: add hdac_ext stream creation and cleanup routines
  ASoC: rsrc-card: remove unused ret
  ALSA: HDAC: move SND_HDA_PREALLOC_SIZE to core
  ASoC: mediatek: Add machine driver for rt5650 rt5676 codec
  ASoC: mediatek: Add machine driver for MAX98090 codec
  ASoC: mediatek: Add AFE platform driver
  ASoC: rsnd: remove io from rsnd_mod
  ASoC: rsnd: move rsnd_mod_is_working() to rsnd_io_is_working()
  ASoC: rsnd: don't use rsnd_mod_to_io() on snd_kcontrol
  ASoC: rsnd: don't use rsnd_mod_to_io() on rsnd_src_xxx()
  ASoC: rsnd: don't use rsnd_mod_to_io() on rsnd_ssi_xxx()
  ASoC: rsnd: don't use rsnd_mod_to_io() on rsnd_dma_xxx()
  ASoC: rsnd: don't use rsnd_mod_to_io() on rsnd_get_adinr()
  ASoC: rsnd: add common interrupt handler for SSI/SRC/DMA
  ...

1 files changed, 174 insertions, 0 deletions

diff --git a/sound/hda/ext/hdac_ext_bus.c b/sound/hda/ext/hdac_ext_bus.c
new file mode 100644
index 000000000000..0aa5d9eb6c3f
--- /dev/null
+++ b/sound/hda/ext/hdac_ext_bus.c
@@ -0,0 +1,174 @@
+/*
+ *  hdac-ext-bus.c - HD-audio extended core bus functions.
+ *
+ *  Copyright (C) 2014-2015 Intel Corp
+ *  Author: Jeeja KP <jeeja.kp@intel.com>
+ *  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; version 2 of the License.
+ *
+ *  This program is distributed in the hope that it will be useful, but
+ *  WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ *  General Public License for more details.
+ *
+ * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ */
+
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <sound/hdaudio_ext.h>
+
+MODULE_DESCRIPTION("HDA extended core");
+MODULE_LICENSE("GPL v2");
+
+static void hdac_ext_writel(u32 value, u32 __iomem *addr)
+{
+	writel(value, addr);
+}
+
+static u32 hdac_ext_readl(u32 __iomem *addr)
+{
+	return readl(addr);
+}
+
+static void hdac_ext_writew(u16 value, u16 __iomem *addr)
+{
+	writew(value, addr);
+}
+
+static u16 hdac_ext_readw(u16 __iomem *addr)
+{
+	return readw(addr);
+}
+
+static void hdac_ext_writeb(u8 value, u8 __iomem *addr)
+{
+	writeb(value, addr);
+}
+
+static u8 hdac_ext_readb(u8 __iomem *addr)
+{
+	return readb(addr);
+}
+
+static int hdac_ext_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 hdac_ext_dma_free_pages(struct hdac_bus *bus, struct snd_dma_buffer *buf)
+{
+	snd_dma_free_pages(buf);
+}
+
+static const struct hdac_io_ops hdac_ext_default_io = {
+	.reg_writel = hdac_ext_writel,
+	.reg_readl = hdac_ext_readl,
+	.reg_writew = hdac_ext_writew,
+	.reg_readw = hdac_ext_readw,
+	.reg_writeb = hdac_ext_writeb,
+	.reg_readb = hdac_ext_readb,
+	.dma_alloc_pages = hdac_ext_dma_alloc_pages,
+	.dma_free_pages = hdac_ext_dma_free_pages,
+};
+
+/**
+ * snd_hdac_ext_bus_init - initialize a HD-audio extended bus
+ * @ebus: the pointer to extended bus object
+ * @dev: device pointer
+ * @ops: bus verb operators
+ * @io_ops: lowlevel I/O operators, can be NULL. If NULL core will use
+ * default ops
+ *
+ * Returns 0 if successful, or a negative error code.
+ */
+int snd_hdac_ext_bus_init(struct hdac_ext_bus *ebus, struct device *dev,
+			const struct hdac_bus_ops *ops,
+			const struct hdac_io_ops *io_ops)
+{
+	int ret;
+	static int idx;
+
+	/* check if io ops are provided, if not load the defaults */
+	if (io_ops == NULL)
+		io_ops = &hdac_ext_default_io;
+
+	ret = snd_hdac_bus_init(&ebus->bus, dev, ops, io_ops);
+	if (ret < 0)
+		return ret;
+
+	INIT_LIST_HEAD(&ebus->hlink_list);
+	ebus->idx = idx++;
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(snd_hdac_ext_bus_init);
+
+/**
+ * snd_hdac_ext_bus_exit - clean up a HD-audio extended bus
+ * @ebus: the pointer to extended bus object
+ */
+void snd_hdac_ext_bus_exit(struct hdac_ext_bus *ebus)
+{
+	snd_hdac_bus_exit(&ebus->bus);
+	WARN_ON(!list_empty(&ebus->hlink_list));
+}
+EXPORT_SYMBOL_GPL(snd_hdac_ext_bus_exit);
+
+static void default_release(struct device *dev)
+{
+	snd_hdac_ext_bus_device_exit(container_of(dev, struct hdac_device, dev));
+}
+
+/**
+ * snd_hdac_ext_device_init - initialize the HDA extended codec base device
+ * @ebus: hdac extended bus to attach to
+ * @addr: codec address
+ *
+ * Returns zero for success or a negative error code.
+ */
+int snd_hdac_ext_bus_device_init(struct hdac_ext_bus *ebus, int addr)
+{
+	struct hdac_device *hdev = NULL;
+	struct hdac_bus *bus = ebus_to_hbus(ebus);
+	char name[15];
+	int ret;
+
+	hdev = kzalloc(sizeof(*hdev), GFP_KERNEL);
+	if (!hdev)
+		return -ENOMEM;
+
+	snprintf(name, sizeof(name), "ehdaudio%dD%d", ebus->idx, addr);
+
+	ret  = snd_hdac_device_init(hdev, bus, name, addr);
+	if (ret < 0) {
+		dev_err(bus->dev, "device init failed for hdac device\n");
+		return ret;
+	}
+	hdev->type = HDA_DEV_ASOC;
+	hdev->dev.release = default_release;
+
+	ret = snd_hdac_device_register(hdev);
+	if (ret) {
+		dev_err(bus->dev, "failed to register hdac device\n");
+		snd_hdac_ext_bus_device_exit(hdev);
+		return ret;
+	}
+	return 0;
+}
+EXPORT_SYMBOL_GPL(snd_hdac_ext_bus_device_init);
+
+/**
+ * snd_hdac_ext_bus_device_exit - clean up a HD-audio extended codec base device
+ * @hdev: hdac device to clean up
+ */
+void snd_hdac_ext_bus_device_exit(struct hdac_device *hdev)
+{
+	snd_hdac_device_exit(hdev);
+	kfree(hdev);
+}
+EXPORT_SYMBOL_GPL(snd_hdac_ext_bus_device_exit);