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2017-07-09Merge tag 'drm-for-v4.13' of git://people.freedesktop.org/~airlied/linuxLinus Torvalds2-128/+216
Pull drm updates from Dave Airlie: "This is the main pull request for the drm, I think I've got one later driver pull for mediatek SoC driver, I'm undecided on if it needs to go to you yet. Otherwise summary below: Core drm: - Atomic add driver private objects - Deprecate preclose hook in modern drivers - MST bandwidth tracking - Use kvmalloc in more places - Add mode_valid hook for crtc/encoder/bridge - Reduce sync_file construction time - Documentation updates - New DRM synchronisation object support New drivers: - pl111 - pl111 CLCD display controller Panel: - Innolux P079ZCA panel driver - Add NL12880B20-05, NL192108AC18-02D, P320HVN03 panels - panel-samsung-s6e3ha2: Add s6e3hf2 panel support i915: - SKL+ watermark fixes - G4x/G33 reset improvements - DP AUX backlight improvements - Buffer based GuC/host communication - New getparam for (sub)slice infomation - Cannonlake and Coffeelake initial patches - Execbuf optimisations radeon/amdgpu: - Lots of Vega10 bug fixes - Preliminary raven support - KIQ support for compute rings - MEC queue management rework - DCE6 Audio support - SR-IOV improvements - Better radeon/amdgpu selection support nouveau: - HDMI stereoscopic support - Display code rework for >= GM20x GPUs msm: - GEM rework for fine-grained locking - Per-process pagetable work - HDMI fixes for Snapdragon 820. vc4: - Remove 256MB CMA limit from vc4 - Add out-fence support - Add support for cygnus - Get/set tiling ioctls support - Add T-format tiling support for scanout zte: - add VGA support. etnaviv: - Thermal throttle support for newer GPUs - Restore userspace buffer cache performance - dma-buf sync fix stm: - add stm32f429 display support exynos: - Rework vblank handling - Fixup sw-trigger code sun4i: - V3s display engine support - HDMI support for older SoCs - Preliminary work on dual-pipeline SoCs. rcar-du: - VSP work imx-drm: - Remove counter load enable from PRE - Double read/write reduction flag support tegra: - Documentation for the host1x and drm driver. - Lots of staging ioctl fixes due to grate project work. omapdrm: - dma-buf fence support - TILER rotation fixes" * tag 'drm-for-v4.13' of git://people.freedesktop.org/~airlied/linux: (1270 commits) drm: Remove unused drm_file parameter to drm_syncobj_replace_fence() drm/amd/powerplay: fix bug fail to remove sysfs when rmmod amdgpu. amdgpu: Set cik/si_support to 1 by default if radeon isn't built drm/amdgpu/gfx9: fix driver reload with KIQ drm/amdgpu/gfx8: fix driver reload with KIQ drm/amdgpu: Don't call amd_powerplay_destroy() if we don't have powerplay drm/ttm: Fix use-after-free in ttm_bo_clean_mm drm/amd/amdgpu: move get memory type function from early init to sw init drm/amdgpu/cgs: always set reference clock in mode_info drm/amdgpu: fix vblank_time when displays are off drm/amd/powerplay: power value format change for Vega10 drm/amdgpu/gfx9: support the amdgpu.disable_cu option drm/amd/powerplay: change PPSMC_MSG_GetCurrPkgPwr for Vega10 drm/amdgpu: Make amdgpu_cs_parser_init static (v2) drm/amdgpu/cs: fix a typo in a comment drm/amdgpu: Fix the exported always on CU bitmap drm/amdgpu/gfx9: gfx_v9_0_enable_gfx_static_mg_power_gating() can be static drm/amdgpu/psp: upper_32_bits/lower_32_bits for address setup drm/amd/powerplay/cz: print message if smc message fails drm/amdgpu: fix typo in amdgpu_debugfs_test_ib_init ...
2017-06-30ALSA: x86: fix error return code in hdmi_lpe_audio_probe()Gustavo A. R. Silva1-2/+2
platform_get_irq() returns an error code, but the intel_hdmi_audio driver ignores it and always returns -ENODEV. This is not correct, and prevents -EPROBE_DEFER from being propagated properly. Also, notice that platform_get_irq() no longer returns 0 on error. Print error message and propagate the return value of platform_get_irq on failure. Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2017-05-30Merge tag 'drm-intel-next-2017-05-29' of ↵Dave Airlie2-132/+216
git://anongit.freedesktop.org/git/drm-intel into drm-next More stuff for 4.13: - skl+ wm fixes from Mahesh Kumar - some refactor and tests for i915_sw_fence (Chris) - tune execlist/scheduler code (Chris) - g4x,g33 gpu reset improvements (Chris, Mika) - guc code cleanup (Michal Wajdeczko, Michał Winiarski) - dp aux backlight improvements (Puthikorn Voravootivat) - buffer based guc/host communication (Michal Wajdeczko) * tag 'drm-intel-next-2017-05-29' of git://anongit.freedesktop.org/git/drm-intel: (253 commits) drm/i915: Update DRIVER_DATE to 20170529 drm/i915: Keep the forcewake timer alive for 1ms past the most recent use drm/i915/guc: capture GuC logs if FW fails to load drm/i915/guc: Introduce buffer based cmd transport drm/i915/guc: Disable send function on fini drm: Add definition for eDP backlight frequency drm/i915: Drop AUX backlight enable check for backlight control drm/i915: Consolidate #ifdef CONFIG_INTEL_IOMMU drm/i915: Only GGTT vma may be pinned and prevent shrinking drm/i915: Serialize GTT/Aperture accesses on BXT drm/i915: Convert i915_gem_object_ops->flags values to use BIT() drm/i915/selftests: Silence compiler warning in igt_ctx_exec drm/i915/guc: Skip port assign on first iteration of GuC dequeue drm/i915: Remove misleading comment in request_alloc drm/i915/g33: Improve reset reliability Revert "drm/i915: Restore lost "Initialized i915" welcome message" drm/i915/huc: Update GLK HuC version drm/i915: Check for allocation failure drm/i915/guc: Remove action status and statistics from debugfs drm/i915/g4x: Improve gpu reset reliability ...
2017-05-15drm/i915: Fix runtime PM for LPE audioVille Syrjälä1-4/+0
Not calling pm_runtime_enable() means that runtime PM can't be enabled at all via sysfs. So we definitely need to call it from somewhere. Calling it from the driver seems like a bad idea because it would have to be paired with a pm_runtime_disable() at driver unload time, otherwise the core gets upset. Also if there's no LPE audio driver loaded then we couldn't runtime suspend i915 either. So it looks like a better plan is to call it from i915 when we register the platform device. That seems to match how pci generally does things. I cargo culted the pm_runtime_forbid() and pm_runtime_set_active() calls from pci as well. The exposed runtime PM API is massive an thorougly misleading, so I don't actually know if this is how you're supposed to use the API or not. But it seems to work. I can now runtime suspend i915 again with or without the LPE audio driver loaded, and reloading the LPE audio driver also seems to work. Note that powertop won't auto-tune runtime PM for platform devices, which is a little annoying. So I'm not sure that leaving runtime PM in "on" mode by default is the best choice here. But I've left it like that for now at least. Also remove the comment about there not being much benefit from LPE audio runtime PM. Not allowing runtime PM blocks i915 runtime PM, which will also block s0ix, and that could have a measurable impact on power consumption. Cc: stable@vger.kernel.org Cc: Takashi Iwai <tiwai@suse.de> Cc: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Fixes: 0b6b524f3915 ("ALSA: x86: Don't enable runtime PM as default") Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/20170427160231.13337-2-ville.syrjala@linux.intel.com Reviewed-by: Takashi Iwai <tiwai@suse.de> (cherry picked from commit 183c00350ccda86781f6695840e6c5f5b22efbd1) Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2017-05-08alsa: use set_memory.h headerLaura Abbott1-1/+1
set_memory_* functions have moved to set_memory.h. Switch to this explicitly. Link: http://lkml.kernel.org/r/1488920133-27229-14-git-send-email-labbott@redhat.com Signed-off-by: Laura Abbott <labbott@redhat.com> Acked-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-05-03ALSA: x86: Register multiple PCM devices for the LPE audio cardVille Syrjälä2-55/+78
Now that everything is in place let's register a PCM device for each port of the display engine. This will make it possible to actually output audio to multiple displays at the same time. And it avoids modesets on unrelated displays from clobbering up the ELD and whatnot for the display currently doing the playback. v2: Add a PCM per port instead of per pipe v3: Fix off by one error with port numbers (Pierre-Louis) Fix .notify_audio_lpe() prototype (Pierre-Louis) Cc: Takashi Iwai <tiwai@suse.de> Cc: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/20170427160231.13337-12-ville.syrjala@linux.intel.com Reviewed-by: Takashi Iwai <tiwai@suse.de>
2017-05-03ALSA: x86: Split snd_intelhad into card and PCM specific structuresVille Syrjälä2-100/+142
To allow multiple PCM devices to be registered for the LPE audio card, split the private data into card and PCM specific chunks. For now we'll stick to just one PCM device as before. v2: Rework to do a pcm device per port instead of per pipe Cc: Takashi Iwai <tiwai@suse.de> Cc: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/20170427160231.13337-11-ville.syrjala@linux.intel.com Reviewed-by: Takashi Iwai <tiwai@suse.de>
2017-05-03ALSA: x86: Prepare LPE audio ctls for multiple PCMsVille Syrjälä1-4/+19
In preparation for register a PCM device for each pipe adjust link up the ctl elements with the corresponding PCM device. Cc: Takashi Iwai <tiwai@suse.de> Cc: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/20170427160231.13337-10-ville.syrjala@linux.intel.com Reviewed-by: Takashi Iwai <tiwai@suse.de>
2017-05-03drm/i915: Clean up the LPE audio platform dataVille Syrjälä1-10/+9
Split the LPE audio platform data into a port specific chunk and device specific chunk. Eventually we'll have a port specific chunk for each port, but for now we'll stick to just one. We'll also get rid of the intel_hdmi_lpe_audio_eld structure which doesn't seem to have any real reason to exist. v2: Organize per port instead of per pipe Cc: Takashi Iwai <tiwai@suse.de> Cc: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/20170427160231.13337-9-ville.syrjala@linux.intel.com Reviewed-by: Takashi Iwai <tiwai@suse.de>
2017-05-03drm/i915: Remove hdmi_connected from LPE audio pdataVille Syrjälä1-4/+4
We can determine that the pipe was shut down from pipe<0, so there's no point in duplicating that information as 'hdmi_connected'. v2: Use pipe<0 instead of port<0 as we'll want to do per-port PCM devices later Initialize pipe to -1 to inidicate inactive initial state Cc: Takashi Iwai <tiwai@suse.de> Cc: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/20170427160231.13337-7-ville.syrjala@linux.intel.com Reviewed-by: Takashi Iwai <tiwai@suse.de>
2017-05-03drm/i915: Replace tmds_clock_speed and link_rate with just ls_clockVille Syrjälä1-3/+8
There's no need to distinguish between the DP link rate and HDMI TMDS clock for the purposes of the LPE audio. Both are actually the same thing more or less, which is the link symbol clock. So let's just call the thing ls_clock and simplify the code. Cc: Takashi Iwai <tiwai@suse.de> Cc: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/20170427160231.13337-6-ville.syrjala@linux.intel.com Reviewed-by: Takashi Iwai <tiwai@suse.de>
2017-05-03drm/i915: Remove the unused pending_notify from LPE platform dataVille Syrjälä1-1/+0
The pending_notify flag in the LPE audio platform data is pointless, actually unused. So let's kill it off. v2: Fix typo in patch subject Cc: Takashi Iwai <tiwai@suse.de> Cc: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/20170427160231.13337-5-ville.syrjala@linux.intel.com Reviewed-by: Takashi Iwai <tiwai@suse.de>
2017-05-03ALSA: x86: Clear the pdata.notify_lpe_audio pointer before teardownVille Syrjälä1-0/+5
Clear the notify function pointer in the platform data before we tear down the driver. Otherwise i915 would end up calling a stale function pointer and possibly explode. Cc: stable@vger.kernel.org Cc: Takashi Iwai <tiwai@suse.de> Cc: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/20170427160231.13337-3-ville.syrjala@linux.intel.com Reviewed-by: Takashi Iwai <tiwai@suse.de>
2017-05-03drm/i915: Fix runtime PM for LPE audioVille Syrjälä1-4/+0
Not calling pm_runtime_enable() means that runtime PM can't be enabled at all via sysfs. So we definitely need to call it from somewhere. Calling it from the driver seems like a bad idea because it would have to be paired with a pm_runtime_disable() at driver unload time, otherwise the core gets upset. Also if there's no LPE audio driver loaded then we couldn't runtime suspend i915 either. So it looks like a better plan is to call it from i915 when we register the platform device. That seems to match how pci generally does things. I cargo culted the pm_runtime_forbid() and pm_runtime_set_active() calls from pci as well. The exposed runtime PM API is massive an thorougly misleading, so I don't actually know if this is how you're supposed to use the API or not. But it seems to work. I can now runtime suspend i915 again with or without the LPE audio driver loaded, and reloading the LPE audio driver also seems to work. Note that powertop won't auto-tune runtime PM for platform devices, which is a little annoying. So I'm not sure that leaving runtime PM in "on" mode by default is the best choice here. But I've left it like that for now at least. Also remove the comment about there not being much benefit from LPE audio runtime PM. Not allowing runtime PM blocks i915 runtime PM, which will also block s0ix, and that could have a measurable impact on power consumption. Cc: stable@vger.kernel.org Cc: Takashi Iwai <tiwai@suse.de> Cc: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Fixes: 0b6b524f3915 ("ALSA: x86: Don't enable runtime PM as default") Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/20170427160231.13337-2-ville.syrjala@linux.intel.com Reviewed-by: Takashi Iwai <tiwai@suse.de>
2017-03-21ALSA: x86: Make CONFIG_SND_X86 boolTakashi Iwai1-1/+2
CONFIG_SND_X86 is a menu config to filter only for x86-specific drivers in its sub-menu, and this doesn't have to be tristate but rather it should be a bool. Also, like other sub-menu configs, it's more user-friendly to be default=y; it's merely a menu config and the actual drivers are configured in the sub-menu, after all. Fixes: 287599cf2d77 ("ALSA: add Intel HDMI LPE audio driver for BYT/CHT-T") Signed-off-by: Takashi Iwai <tiwai@suse.de>
2017-02-21ALSA: x86: hdmi: select CONFIG_SND_PCMArnd Bergmann1-0/+1
The newly added driver uses the PCM helpers and fails to link if they are disabled: sound/built-in.o: In function `hdmi_lpe_audio_runtime_suspend': intel_hdmi_audio.c:(.text+0x15906): undefined reference to `snd_pcm_suspend' sound/built-in.o: In function `had_pcm_hw_params': intel_hdmi_audio.c:(.text+0x15ac7): undefined reference to `snd_pcm_lib_malloc_pages' sound/built-in.o: In function `had_pcm_open': intel_hdmi_audio.c:(.text+0x15d49): undefined reference to `snd_pcm_hw_constraint_integer' This uses a Kconfig 'select' statement to make sure they are enabled. Fixes: 5dab11d89777 ("ALSA: x86: hdmi: Add audio support for BYT and CHT") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2017-02-21ALSA: x86: Don't enable runtime PM as defaultTakashi Iwai1-2/+4
Unlike HSW and newer, BYT/CHT devices have no fine control of audio power domain in i915 side. Since there is little gain by runtime PM on BYT/CHT, so far, this commit removes the pm_runtime_enable() call as default. User who still wants the runtime PM may adjust the corresponding sysfs files (power/control and power/autosuspend_delay_ms) appropriately, of course. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2017-02-21ALSA: x86: Use runtime PM autosuspendTakashi Iwai1-4/+18
This patch adds a few lines to the driver to use autosuspend for the runtime PM. It'll become useful with the combination of the keep-link feature. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2017-02-16ALSA: x86: Don't bail out from PCM ops when disconnectedTakashi Iwai1-22/+0
Currently the driver returns -ENODEV when the monitor is disconnected. But PA alsa module doesn't like this and it starts playing Juliet, kills itself as if it were a fatal tragedy. Since we protect the whole read/write at disconnection, just allow the PCM accesses even during disconnection. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2017-02-16ALSA: x86: Minor code rearrangementTakashi Iwai1-16/+11
Put the stuff in the right order; notification should be at the end of the action. Also dropped a superfluous debug print and incorrect comments. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2017-02-16ALSA: x86: Stop the stream when buffer is processed after disconnectionTakashi Iwai1-3/+6
This shouldn't happen, but just to be sure... Signed-off-by: Takashi Iwai <tiwai@suse.de>
2017-02-16ALSA: x86: Avoid register accesses during disconnectionTakashi Iwai1-8/+26
It seems that accessing registers during disconnection often leads to the GPU pipe error. The original driver had a similar check in the past, but it was lost through refactoring. Now put a connection check in the register access functions. One exception is the irq handler: it still needs to access the raw register even while disconnected, because it has to read and write to ACK the irq mask. Although the irq shouldn't be raised while disconnected (the stream should have been disabled), let's make it safer for now. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2017-02-16ALSA: x86: Don't return an error from chmap ctl at disconnectedTakashi Iwai1-9/+3
It's not wise to return an error at info/get callback when disconnected, which happens at any time. The chmap ctl is supposed to fill zero for such a case, instead. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2017-02-16ALSA: x86: Fix memory leak in had_build_channel_allocation_map()Takashi Iwai1-6/+5
The previously allocated chmap has to be released before setting the new one. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2017-02-16ALSA: x86: Use snd_pcm_stop_xrun() for connection / disconnection pathsTakashi Iwai1-2/+2
This seems more friendly to user-space, as it's notified at least as an error, instead of forcibly moving the PCM state to SETUP out of sudden. Moreover, snd_pcm_stop() needs an extra PCM spinlock I forgot, while snd_pcm_stop_xrun() takes the spinlock by itself. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2017-02-16ALSA: x86: Implement jack controlTakashi Iwai2-0/+24
This patch implements a jack interface for notifying HDMI/DP connection. PA listens to this, so it can handle the monitor connection more gracefully. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2017-02-13ALSA: x86: Drop unused stream.running fieldTakashi Iwai2-10/+2
The pcm_stream_info.running field is only set in the PCM trigger callback but never referred, thus it can be safely removed. Also, properly cover the spinlock in both the trigger START and STOP to protect had_enable_audio() calls. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2017-02-13ALSA: x86: Handle reset at prepare callbackTakashi Iwai2-14/+26
Currently the driver handles some reset procedure at the trigger STOP and the underrun functions, where both are executed in the interrupt context. Especially the underrun function has a sync-loop to clear the UNDERRUN status bit, and this is supposed to be one of plausible causes of GPU hangup. Since the job to be done in the interrupt handler should be minimum, we move the reset function out of trigger and underrun, and push it into the prepare (and hw_free) callbacks instead. Here a new flag, need_reset, is introduced to indicate the requirement of the reset procedure. This is for avoiding the multiple resets when PCM prepare is called sequentially. Also in the UNDERRUN bit-clear sync loop, take a longer pause to be in the safer side. Taking a longer delay is no longer a problem now because we're running in the normal context. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2017-02-10ALSA: x86: Support S16 formatTakashi Iwai1-3/+5
Now we support S16 PCM format in addition. For this, we need to set packet_mode=1 in AUD_CONFIG register. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2017-02-10ALSA: x86: Support S32 formatTakashi Iwai1-9/+19
The hardware has the support for the left-aligned 24bit format in 32bit packet. This corresponds to S32 format in ALSA. We need to set the msbits restriction as well to inform user-space that only MSB 24bit are available. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2017-02-10ALSA: x86: Allow no-period-wakeup setupTakashi Iwai1-2/+5
In the current implementation, the driver may update the BDs even at PCM pointer callback. This allows us to skip the period interrupt effectively. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2017-02-10ALSA: x86: Allow single period PCM operationTakashi Iwai2-3/+13
This is an implementation of PCM streaming with only 1 period. Since the hardware requires the refresh of BDs after each BD processing finishes, we'd need at least two BDs. The trick is that both BDs point to the same content: the address of the PCM buffer head, and the whole buffer size. Then it loops over to the whole buffer again after it finished once. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2017-02-10ALSA: x86: Don't pass SNDRV_PCM_INFO_BATCH flagTakashi Iwai1-4/+2
The PCM engine on LPE audio isn't like a batch-style process any longer, but rather it deals with the standard ring buffer. Remove the BATCH info flag so that PA can handle the buffer in timer-sched mode. Similarly, the DOUBLE flag is also superfluous. Drop both bits. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2017-02-07ALSA: x86: Cache AUD_CONFIG register valueTakashi Iwai2-27/+13
At enabling the audio, we modify AUD_CONFIG register bit 0. So far, it does read-modify-write procedure with a special hack for the channel bits due to the silicon bug. But we can optimize it by remembering the AUD_CONFIG register value privately. This simplifies the things a lot. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2017-02-07ALSA: x86: Rearrange definesTakashi Iwai3-81/+83
We have two header files and everything is mixed up chaotically. Move the chip-specific definitions like the hardware registers to intel_hdmi_lpe_audio.h, and the rest, the implementation specific stuff into intel_hdmi_audio.h. In addition, put some more comments to the register fields, and fix the incorrect name prefix for AUD_HDMI_STATUS bits, too. The whole changes are merely a code shuffling, and there is no functional change. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2017-02-07ALSA: x86: mark hdmi suspend/resume functions as __maybe_unusedArnd Bergmann1-2/+2
The two functions are unused when CONFIG_PM_SLEEP is disabled: sound/x86/intel_hdmi_audio.c:1633:12: error: 'hdmi_lpe_audio_resume' defined but not used [-Werror=unused-function] sound/x86/intel_hdmi_audio.c:1622:12: error: 'hdmi_lpe_audio_suspend' defined but not used [-Werror=unused-function] Marking them as __maybe_unused avoids the warning without introducing an ugly #ifdef. Fixes: 182cdf23dbf6 ("ALSA: x86: Implement runtime PM") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2017-02-07ALSA: x86: Fix driver name string overflowTakashi Iwai2-2/+3
The driver sets card->driver name string over its size (16 bytes). Shorten the name string to fit with it. Also, set more verbose string to card->shortname and ->longname. This doesn't have to be identical with card->driver at all. Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2017-02-07ALSA: x86: Rename had_enable_audio_int() to had_ack_irqs()Takashi Iwai1-14/+7
had_enable_audio_int() came from the LPE audio shell set_caps callback with ENABLE_INT and DISABLE_INT caps. I interpreted as these correspond to enabling / disabling the audio interface, but the actual implementation is only to clear (send ACK) to both BUFFER_DONE and BUFFER_UNDERRUN interrupts unconditionally. And, there is no counterpart, DISABLE_INT, code at all. For avoiding the further misunderstanding, rename the function to the more fitting one, had_ack_irqs(), and drop the calls with enable=false in allover places. There is no functional changes at all. After this patch, there is only one caller at the PCM trigger start. Then it's doubtful whether this call is still really needed or not; I bet it not, but let's stay in the safer side for now and keep it as was. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2017-02-07ALSA: x86: Drop suspicious U24 format supportTakashi Iwai1-2/+1
U24 format is declared to be supported by the driver, but this looks really doubtful, as there is no corresponding code. Better to drop it. This format is very uncommon, so there should be practically no impact by this change. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2017-02-06ALSA: x86: Refactor PCM process engineTakashi Iwai3-354/+231
This is again a big rewrite of the driver; now it touches the code to process PCM stream transfers. The most fundamental change is that the driver may support more than four periods. Instead of keeping the same index between both the ring buffer (with the fixed four buffer descriptors) and the PCM buffer periods, we keep difference indices for both (bd_head and pcm_head fields). In addition, when the periods are more than four, we need to track both head and next indices. That is, we now have three indices: bd_head, pcm_head and pcm_filled. Also, the driver works better for periods < 4, too: the remaining BDs out of four are marked as invalid, so that the hardware skips those BDs in its loop. By this flexibility, we can use even ALSA-lib dmix plugin, which requires 16 periods as default. The buffer size could be up to 20bit, so the max buffer size was increased accordingly. However, the buffer pre-allocation is kept as the old value (600kB) as default. The reason is the limited number of BDs: since it doesn't suffice for the useful SG page management that can fit with the usual page allocator like some other drivers, we have to still allocate continuous pages, hence we shouldn't take too big memories there. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2017-02-05ALSA: x86: Unify local function prefixTakashi Iwai1-67/+60
Use had_ prefix consistently to all local helper functions, as well as had_pcm_ for PCM ops. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2017-02-05ALSA: x86: Minor cleanup of reset buffer procedureTakashi Iwai1-7/+6
The procedure to reset buffer pointers is performed in two places and still open-coded. Simplify the helper function and use it consistently. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2017-02-05ALSA: x86: Don't check connection in lowlevel accessorsTakashi Iwai1-66/+25
The lowlevel register read/write don't have to be careful about the connection state. It should be checked in the caller side instead. By dropping the check, we can simplify the code, and readability. This patch also refacors the functions slightly: namely, - drop the useless always-zero return values - fold the inline functions to the main accessor functions themselves - move the DP audio hack for AUD_CONFIG to the caller side - simplify snd_intelhad_eanble_audio() and drop the unused had_read_modify() Signed-off-by: Takashi Iwai <tiwai@suse.de>
2017-02-05ALSA: x86: Explicit specify 32bit DMATakashi Iwai1-2/+6
LPE audio is capable only up to 32bit address, as it seems. Then we should limit the DMA addresses accordingly via dma-mapping API. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2017-02-03ALSA: x86: Rename drv_status to connectedTakashi Iwai3-30/+22
After the rewrite of the runtime PM code, we have only two driver status: CONNECTED and DISCONNECTED. So it's clearer to use a boolean flag, and name it easier one, "connected". Signed-off-by: Takashi Iwai <tiwai@suse.de>
2017-02-03ALSA: x86: Yet more tidy-up and clean-upsTakashi Iwai1-32/+36
- Add a few more comments to functions. - Move the initialization of some PCM state variables to open and prepare callbacks, where these are clearer places. - Remove superfluous NULL checks. - Get rid of the bogus drv_status change to CONNECTED at close; this doesn't make any sense. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2017-02-03ALSA: x86: Simplify commentsTakashi Iwai1-52/+14
It's a stand-alone small driver code, and we don't have to describe too much formalized comments in kernel-doc style for local functions at all. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2017-02-03ALSA: x86: Set CA bits for DisplayPort tooTakashi Iwai1-4/+4
This is a guess work. Usually the DP audio info frame is just 8-bit shifted from HDMI AI, so let's try to put CA in DIP frame 2 [24-31]. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2017-02-03ALSA: x86: Create ELD control elementTakashi Iwai1-21/+51
Like other drivers, expose the ELD bytes via a control element so that user-space can parse it. For the simplicity, the code to register the ctl elements is refactored using an array. Also, since ELD ctl read copies the bytes also during disconnection, clear the ELD bytes at hot-unplug, in order to avoid the leak of the previous bogus ELD. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2017-02-03ALSA: x86: Clean up unused defines and inclusionsTakashi Iwai3-69/+20
Many defines and constants are left unused. Clean them up. Signed-off-by: Takashi Iwai <tiwai@suse.de>
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