sound updates for 4.19 It's been busy summer weeks and hence lots of changes, partly for a few new drivers and partly for a wide range of fixes. Here are highlights: ALSA Core: - Fix rawmidi buffer management, code cleanup / refactoring - Fix the SG-buffer page handling with incorrect fallback size - Fix the stall at virmidi trigger callback with a large buffer; also offloading and code-refactoring along with it - Various ALSA sequencer code cleanups ASoC: - Deploy the standard snd_pcm_stop_xrun() helper in several drivers - Support for providing name prefixes to generic component nodes - Quite a few fixes for DPCM as it gains a bit wider use and more robust testing - Generalization of the DIO2125 support to a simple amplifier driver - Accessory detection support for the audio graph card - DT support for PXA AC'97 devices - Quirks for a number of new x86 systems - Support for AM Logic Meson, Everest ES7154, Intel systems with RT5682, Qualcomm QDSP6 and WCD9335, Realtek RT5682 and TI TAS5707 HD-audio: - Code refactoring in HD-audio ext codec codes to drop own classes; preliminary works for the upcoming legacy codec support - Generalized DRM audio component for the upcoming radeon / amdgpu support - Unification of mic mute-LED and GPIO support for various codecs - Further improvement of CA0132 codec support including Recon3D - Proper vga_switcheroo handling for AMD i-GPU - Update of model list in documentation - Fixups for another HP Spectre x360, Conexant codecs, power-save blacklist update USB-audio: - Fix the invalid sample rate setup with external clock - Support of UAC3 selector units and processing units - Basic UAC3 power-domain support - Support for Encore mDSD and Thesycon-based DSD devices - Preparation for future complete callback changes Firewire: - Add support for MOTU Traveler Misc: - The endianess notation fixes in various drivers - Add fall-through comment in lots of drivers - Various sparse warning fixes, e.g. about PCM format types