November 2020 - Alsa-devel - mailman.alsa-project.org

[PATCH v2] ASoC: hdmi-codec: Get ELD in before reporting plugged event
by Cheng-Yi Chiang 23 Nov '20

23 Nov '20

In plugged callback, ELD should be updated from display driver so that user space can query information from ELD immediately after receiving jack plugged event. When jack is unplugged, clear ELD buffer so that user space does not get obsolete information of unplugged HDMI. Signed-off-by: Cheng-Yi Chiang <cychiang(a)chromium.org> --- Change from v1 to v2: - Report jack unplug event then clear ELD. This makes sure user will not get a cleared ELD during their usage of jack. sound/soc/codecs/hdmi-codec.c | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) diff --git a/sound/soc/codecs/hdmi-codec.c b/sound/soc/codecs/hdmi-codec.c index 403d4c6a49a8..e8410b2433de 100644 --- a/sound/soc/codecs/hdmi-codec.c +++ b/sound/soc/codecs/hdmi-codec.c @@ -692,10 +692,16 @@ static void plugged_cb(struct device *dev, bool plugged) { struct hdmi_codec_priv *hcp = dev_get_drvdata(dev); - if (plugged) + if (plugged) { + if (hcp->hcd.ops->get_eld) { + hcp->hcd.ops->get_eld(dev->parent, hcp->hcd.data, + hcp->eld, sizeof(hcp->eld)); + } hdmi_codec_jack_report(hcp, SND_JACK_LINEOUT); - else + } else { hdmi_codec_jack_report(hcp, 0); + memset(hcp->eld, 0, sizeof(hcp->eld)); + } } static int hdmi_codec_set_jack(struct snd_soc_component *component, -- 2.29.2.299.gdc1121823c-goog

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[RFC] MAINTAINERS tag for cleanup robot
by trix＠redhat.com 23 Nov '20

23 Nov '20

A difficult part of automating commits is composing the subsystem preamble in the commit log. For the ongoing effort of a fixer producing one or two fixes a release the use of 'treewide:' does not seem appropriate. It would be better if the normal prefix was used. Unfortunately normal is not consistent across the tree. So I am looking for comments for adding a new tag to the MAINTAINERS file D: Commit subsystem prefix ex/ for FPGA DFL DRIVERS D: fpga: dfl: Continuing with cleaning up clang's -Wextra-semi-stmt A significant number of warnings are caused by function like macros with a trailing semicolon. For example. #define FOO(a) a++; <-- extra, unneeded semicolon void bar() { int v = 0; FOO(a); } Clang will warn at the FOO(a); expansion location. Instead of removing the semicolon there, the fixer removes semicolon from the macro definition. After the fixer, the code will be: #define FOO(a) a++ void bar() { int v = 0; FOO(a); } The fixer review is https://reviews.llvm.org/D91789 A run over allyesconfig for x86_64 finds 62 issues, 5 are false positives. The false positives are caused by macros passed to other macros and by some macro expansions that did not have an extra semicolon. This cleans up about 1,000 of the current 10,000 -Wextra-semi-stmt warnings in linux-next. An update to [RFC] clang tooling cleanup This change adds the clang-tidy-fix as a top level target and uses it to do the cleaning. The next iteration will do a loop of cleaners. This will mean breaking clang-tidy-fix out into its own processing function 'run_fixers'. Makefile: Add toplevel target clang-tidy-fix to makefile Calls clang-tidy with -fix option for a set of checkers that programatically fixes the kernel source in place, treewide. Signed-off-by: Tom Rix <trix(a)redhat.com> --- Makefile | 7 ++++--- scripts/clang-tools/run-clang-tools.py | 20 +++++++++++++++++--- 2 files changed, 21 insertions(+), 6 deletions(-) diff --git a/Makefile b/Makefile index 47a8add4dd28..57756dbb767b 100644 --- a/Makefile +++ b/Makefile @@ -1567,20 +1567,21 @@ help: echo '' @echo 'Static analysers:' @echo ' checkstack - Generate a list of stack hogs' @echo ' versioncheck - Sanity check on version.h usage' @echo ' includecheck - Check for duplicate included header files' @echo ' export_report - List the usages of all exported symbols' @echo ' headerdep - Detect inclusion cycles in headers' @echo ' coccicheck - Check with Coccinelle' @echo ' clang-analyzer - Check with clang static analyzer' @echo ' clang-tidy - Check with clang-tidy' + @echo ' clang-tidy-fix - Check and fix with clang-tidy' @echo '' @echo 'Tools:' @echo ' nsdeps - Generate missing symbol namespace dependencies' @echo '' @echo 'Kernel selftest:' @echo ' kselftest - Build and run kernel selftest' @echo ' Build, install, and boot kernel before' @echo ' running kselftest on it' @echo ' Run as root for full coverage' @echo ' kselftest-all - Build kernel selftest' @@ -1842,30 +1843,30 @@ nsdeps: modules quiet_cmd_gen_compile_commands = GEN $@ cmd_gen_compile_commands = $(PYTHON3) $< -a $(AR) -o $@ $(filter-out $<, $(real-prereqs)) $(extmod-prefix)compile_commands.json: scripts/clang-tools/gen_compile_commands.py \ $(if $(KBUILD_EXTMOD),,$(KBUILD_VMLINUX_OBJS) $(KBUILD_VMLINUX_LIBS)) \ $(if $(CONFIG_MODULES), $(MODORDER)) FORCE $(call if_changed,gen_compile_commands) targets += $(extmod-prefix)compile_commands.json -PHONY += clang-tidy clang-analyzer +PHONY += clang-tidy-fix clang-tidy clang-analyzer ifdef CONFIG_CC_IS_CLANG quiet_cmd_clang_tools = CHECK $< cmd_clang_tools = $(PYTHON3) $(srctree)/scripts/clang-tools/run-clang-tools.py $@ $< -clang-tidy clang-analyzer: $(extmod-prefix)compile_commands.json +clang-tidy-fix clang-tidy clang-analyzer: $(extmod-prefix)compile_commands.json $(call cmd,clang_tools) else -clang-tidy clang-analyzer: +clang-tidy-fix clang-tidy clang-analyzer: @echo "$@ requires CC=clang" >&2 @false endif # Scripts to check various things for consistency # --------------------------------------------------------------------------- PHONY += includecheck versioncheck coccicheck export_report includecheck: diff --git a/scripts/clang-tools/run-clang-tools.py b/scripts/clang-tools/run-clang-tools.py index fa7655c7cec0..c177ca822c56 100755 --- a/scripts/clang-tools/run-clang-tools.py +++ b/scripts/clang-tools/run-clang-tools.py @@ -22,43 +22,57 @@ def parse_arguments(): Returns: args: Dict of parsed args Has keys: [path, type] """ usage = """Run clang-tidy or the clang static-analyzer on a compilation database.""" parser = argparse.ArgumentParser(description=usage) type_help = "Type of analysis to be performed" parser.add_argument("type", - choices=["clang-tidy", "clang-analyzer"], + choices=["clang-tidy-fix", "clang-tidy", "clang-analyzer"], help=type_help) path_help = "Path to the compilation database to parse" parser.add_argument("path", type=str, help=path_help) return parser.parse_args() def init(l, a): global lock global args lock = l args = a def run_analysis(entry): # Disable all checks, then re-enable the ones we want checks = "-checks=-*," - if args.type == "clang-tidy": + fix = "" + header_filter = "" + if args.type == "clang-tidy-fix": + checks += "linuxkernel-macro-trailing-semi" + # + # Fix this + # #define M(a) a++; <-- clang-tidy fixes the problem here + # int f() { + # int v = 0; + # M(v); <-- clang reports problem here + # return v; + # } + fix += "-fix" + header_filter += "-header-filter=.*" + elif args.type == "clang-tidy": checks += "linuxkernel-*" else: checks += "clang-analyzer-*" - p = subprocess.run(["clang-tidy", "-p", args.path, checks, entry["file"]], + p = subprocess.run(["clang-tidy", "-p", args.path, checks, header_filter, fix, entry["file"]], stdout=subprocess.PIPE, stderr=subprocess.STDOUT, cwd=entry["directory"]) with lock: sys.stderr.buffer.write(p.stdout) def main(): args = parse_arguments() -- 2.18.4

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[PATCH 01/38] ASoC: ak5558: drop of_match_ptr from of_device_id table
by Krzysztof Kozlowski 23 Nov '20

23 Nov '20

The driver can match only via the DT table so the table should be always used and the of_match_ptr does not have any sense (this also allows ACPI matching via PRP0001, even though it is not relevant here). This fixes compile warning (!CONFIG_OF on x86_64): sound/soc/codecs/ak5558.c:418:34: warning: ‘ak5558_i2c_dt_ids’ defined but not used [-Wunused-const-variable=] Signed-off-by: Krzysztof Kozlowski <krzk(a)kernel.org> --- sound/soc/codecs/ak5558.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/sound/soc/codecs/ak5558.c b/sound/soc/codecs/ak5558.c index 2f076d5ee284..427d7d51bf53 100644 --- a/sound/soc/codecs/ak5558.c +++ b/sound/soc/codecs/ak5558.c @@ -423,7 +423,7 @@ static const struct of_device_id ak5558_i2c_dt_ids[] = { static struct i2c_driver ak5558_i2c_driver = { .driver = { .name = "ak5558", - .of_match_table = of_match_ptr(ak5558_i2c_dt_ids), + .of_match_table = ak5558_i2c_dt_ids, .pm = &ak5558_pm, }, .probe_new = ak5558_i2c_probe, -- 2.25.1

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Poor performace on mmap reading arm64 on audio device
by Michael Nazzareno Trimarchi 23 Nov '20

23 Nov '20

Hi all I'm trying to figure out how to increase performance on audio reading using the mmap interface. Right now what I understand it's that allocation comes from core/memalloc.c ops that allocate the memory for dma under driver/dma. The reference platform I have is an imx8mm and the allocation in arm64 is: 0xffff800011ff5000-0xffff800012005000 64K PTE RW NX SHD AF UXN MEM/NORMAL-NC This is the reason that is allocated for dma interface. Now access linear on the multichannel interface the performance is bad but worse if I try to access a channel a time on read. So it looks like it is better to copy the block using memcpy on a cached area and then operate on a single channel sample. If it's correct what I'm saying the mmap_begin and mmap_commit basically they don't do anything on cache level so the page mapping and way is used is always the same. Can the interface be modified to allow cache the area during read and restore in the commit phase? Michael

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[PATCH v5 0/6] Tegra210 audio graph card
by Sameer Pujar 23 Nov '20

23 Nov '20

This series adds audio graph based sound card support for Tegra210 platforms like Jetson-TX1 an Jetson-Nano. The following preparatory audio graph enhancement series is already merged. * https://patchwork.kernel.org/project/alsa-devel/list/?series=375629&state=* Following are the summary of changes: * Add graph/audio-graph based schemas or schema updates for Tegra210 component and machine drivers. * Add Tegra audio graph machine driver. * Add required DT support for Jetson-TX1/Nano. This work is based on earlier discussion of DPCM usage for Tegra and simple card driver updates. * https://lkml.org/lkml/2020/4/30/519 * https://lkml.org/lkml/2020/6/27/4 This series has dependency over following graph and audio-graph series. * http://patchwork.ozlabs.org/project/devicetree-bindings/patch/2020110220365… * https://patchwork.kernel.org/project/alsa-devel/list/?series=382009&state=* Changelog ========= v4 -> v5 -------- * Audio graph related changes were sent in separate v5 series as mentioned above and are dropped from current series. * Graph and audio graph doc patches are dropped from this series and are sent separately as mentioned above. * Minor change with phandle label for TX1 and Nano platform DT files. * No changes in other patches. v3 -> v4 -------- * Added new patches to convert graph.txt and audio-graph-card.txt to corresponding json-schema files. Later these references are used in Tegra audio graph schema. * AHUB component binding docs are updated to reflect the usage of ports/port/endpoint * More common stuff is moved into graph_parse_of() and this is used by both generic and Tegra audio graph. * DT binding for Tegra audio graph is updated to included "ports { }" * As per the suggestion 'void *data' member is dropped from 'asoc_simple_priv' and instead container method is used to maintain required custom data internal to Tegra audio graph. v2 -> v3 -------- * Dropped new compatible addition in generic graph driver after reviewing it with Morimoto-san. Instead added Tegra audio graph driver and new compatibles are added in the same. * Added new patches to expose new members for customization in audio graph driver. * Added new patch for Tegra audio graph driver and related documentation. * Minor change in below commit where mutex version of helper is used "ASoC: audio-graph: Identify 'no_pcm' DAI links for DPCM" * DT binding is updated to use the newly exposed compatibles * No changes in other patches v1 -> v2 -------- * Re-organized ports/endpoints description for ADMAIF and XBAR. Updated DT patches accordingly. * After above change, multiple Codec endpoint support is not required and hence dropped for now. This will be considered separately if at all required in future. * Re-ordered patches in the series. Sameer Pujar (6): ASoC: dt-bindings: tegra: Add graph bindings ASoC: dt-bindings: tegra: Add json-schema for Tegra audio graph card ASoC: tegra: Add audio graph based card driver arm64: defconfig: Enable Tegra audio graph card driver arm64: tegra: Audio graph header for Tegra210 arm64: tegra: Audio graph sound card for Jetson Nano and TX1 .../sound/nvidia,tegra-audio-graph-card.yaml | 187 +++++++++++++++ .../bindings/sound/nvidia,tegra186-dspk.yaml | 6 + .../bindings/sound/nvidia,tegra210-admaif.yaml | 6 + .../bindings/sound/nvidia,tegra210-ahub.yaml | 13 +- .../bindings/sound/nvidia,tegra210-dmic.yaml | 6 + .../bindings/sound/nvidia,tegra210-i2s.yaml | 6 + .../boot/dts/nvidia/tegra210-audio-graph.dtsi | 153 ++++++++++++ arch/arm64/boot/dts/nvidia/tegra210-p2371-2180.dts | 262 +++++++++++++++++++++ arch/arm64/boot/dts/nvidia/tegra210-p3450-0000.dts | 146 ++++++++++++ arch/arm64/configs/defconfig | 1 + sound/soc/tegra/Kconfig | 9 + sound/soc/tegra/Makefile | 2 + sound/soc/tegra/tegra_audio_graph_card.c | 255 ++++++++++++++++++++ 13 files changed, 1050 insertions(+), 2 deletions(-) create mode 100644 Documentation/devicetree/bindings/sound/nvidia,tegra-audio-graph-card.yaml create mode 100644 arch/arm64/boot/dts/nvidia/tegra210-audio-graph.dtsi create mode 100644 sound/soc/tegra/tegra_audio_graph_card.c -- 2.7.4

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[PATCH] ALSA: usb-audio : Add support for the Pioneer DJ DDJ-RR controller.
by Daniel 21 Nov '20

21 Nov '20

--- sound/usb/quirks-table.h | 56 +++++++++++++++++++++++++++++++++++++++- 1 file changed, 55 insertions(+), 1 deletion(-) diff --git a/sound/usb/quirks-table.h b/sound/usb/quirks-table.h index 3c1697f6b60c..a39233cb4d72 100644 --- a/sound/usb/quirks-table.h +++ b/sound/usb/quirks-table.h @@ -3530,7 +3530,61 @@ AU0828_DEVICE(0x2040, 0x7270, "Hauppauge", "HVR-950Q"), } } }, - +{ + /* + * PIONEER DJ DDJ-RR + * PCM is 6 channels out & 4 channels in @ 44.1 fixed + */ + USB_DEVICE_VENDOR_SPEC(0x2b73, 0x000d), + .driver_info = (unsigned long) &(const struct snd_usb_audio_quirk) { + .ifnum = QUIRK_ANY_INTERFACE, + .type = QUIRK_COMPOSITE, + .data = (const struct snd_usb_audio_quirk[]) { + { + .ifnum = 0, + .type = QUIRK_AUDIO_FIXED_ENDPOINT, + .data = &(const struct audioformat) { + .formats = SNDRV_PCM_FMTBIT_S24_3LE, + .channels = 6, //Master, Headphones & Booth + .iface = 0, + .altsetting = 1, + .altset_idx = 1, + .endpoint = 0x01, + .ep_attr = USB_ENDPOINT_XFER_ISOC| + USB_ENDPOINT_SYNC_ASYNC, + .rates = SNDRV_PCM_RATE_44100, + .rate_min = 44100, + .rate_max = 44100, + .nr_rates = 1, + .rate_table = (unsigned int[]) { 44100 } + } + }, + { + .ifnum = 0, + .type = QUIRK_AUDIO_FIXED_ENDPOINT, + .data = &(const struct audioformat) { + .formats = SNDRV_PCM_FMTBIT_S24_3LE, + .channels = 4, //2x RCA inputs (CH1 & CH2) + .iface = 0, + .altsetting = 1, + .altset_idx = 1, + .endpoint = 0x82, + .ep_attr = USB_ENDPOINT_XFER_ISOC| + USB_ENDPOINT_SYNC_ASYNC| + USB_ENDPOINT_USAGE_IMPLICIT_FB, + .rates = SNDRV_PCM_RATE_44100, + .rate_min = 44100, + .rate_max = 44100, + .nr_rates = 1, + .rate_table = (unsigned int[]) { 44100 } + } + }, + { + .ifnum = -1 + } + } + } +}, { /* * Pioneer DJ DJM-900NXS2 -- 2.29.2

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[PATCH V2] ALSA: emu10k1: Use dma_set_mask_and_coherent to simplify code
by Christophe JAILLET 21 Nov '20

21 Nov '20

'pci_set_dma_mask()' + 'pci_set_consistent_dma_mask()' can be replaced by an equivalent 'dma_set_mask_and_coherent()' which is much less verbose. Signed-off-by: Christophe JAILLET <christophe.jaillet(a)wanadoo.fr> --- v2: do not update the dev_err message, to keep consistency with other dev_err --- sound/pci/emu10k1/emu10k1x.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/sound/pci/emu10k1/emu10k1x.c b/sound/pci/emu10k1/emu10k1x.c index def8161cde4c..f2b6fd434474 100644 --- a/sound/pci/emu10k1/emu10k1x.c +++ b/sound/pci/emu10k1/emu10k1x.c @@ -894,8 +894,8 @@ static int snd_emu10k1x_create(struct snd_card *card, if ((err = pci_enable_device(pci)) < 0) return err; - if (pci_set_dma_mask(pci, DMA_BIT_MASK(28)) < 0 || - pci_set_consistent_dma_mask(pci, DMA_BIT_MASK(28)) < 0) { + + if (dma_set_mask_and_coherent(&pci->dev, DMA_BIT_MASK(28)) < 0) { dev_err(card->dev, "error to set 28bit mask DMA\n"); pci_disable_device(pci); return -ENXIO; -- 2.27.0

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[PATCH] ALSA: aloop: Constify ops structs
by Rikard Falkeborn 21 Nov '20

21 Nov '20

The only usage of the ops field in the loopback_cable struct is to call its members, the field it self is never changed. Make it a pointer to const. This allows us to constify two static loopback_ops structs to allow the compiler to put them in read-only memory. Signed-off-by: Rikard Falkeborn <rikard.falkeborn(a)gmail.com> --- sound/drivers/aloop.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/sound/drivers/aloop.c b/sound/drivers/aloop.c index c91356326699..702f91b9c60f 100644 --- a/sound/drivers/aloop.c +++ b/sound/drivers/aloop.c @@ -105,7 +105,7 @@ struct loopback_cable { unsigned int running; unsigned int pause; /* timer specific */ - struct loopback_ops *ops; + const struct loopback_ops *ops; /* If sound timer is used */ struct { int stream; @@ -1021,7 +1021,7 @@ static int loopback_jiffies_timer_open(struct loopback_pcm *dpcm) return 0; } -static struct loopback_ops loopback_jiffies_timer_ops = { +static const struct loopback_ops loopback_jiffies_timer_ops = { .open = loopback_jiffies_timer_open, .start = loopback_jiffies_timer_start, .stop = loopback_jiffies_timer_stop, @@ -1172,7 +1172,7 @@ static int loopback_snd_timer_open(struct loopback_pcm *dpcm) /* stop_sync() is not required for sound timer because it does not need to be * restarted in loopback_prepare() on Xrun recovery */ -static struct loopback_ops loopback_snd_timer_ops = { +static const struct loopback_ops loopback_snd_timer_ops = { .open = loopback_snd_timer_open, .start = loopback_snd_timer_start, .stop = loopback_snd_timer_stop, -- 2.29.2

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[PATCH] ALSA: emu10k1: Use dma_set_mask_and_coherent to simplify code
by Christophe JAILLET 21 Nov '20

21 Nov '20

'pci_set_dma_mask()' + 'pci_set_consistent_dma_mask()' can be replaced by an equivalent 'dma_set_mask_and_coherent()' which is much less verbose. With at it replace the 'card->dev' parameter passed to a 'dev_err()' call by an equivalent '&pci->dev' which is more consistent with the test just one line above. Signed-off-by: Christophe JAILLET <christophe.jaillet(a)wanadoo.fr> --- sound/pci/emu10k1/emu10k1x.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/sound/pci/emu10k1/emu10k1x.c b/sound/pci/emu10k1/emu10k1x.c index def8161cde4c..f2b6fd434474 100644 --- a/sound/pci/emu10k1/emu10k1x.c +++ b/sound/pci/emu10k1/emu10k1x.c @@ -894,9 +894,9 @@ static int snd_emu10k1x_create(struct snd_card *card, if ((err = pci_enable_device(pci)) < 0) return err; - if (pci_set_dma_mask(pci, DMA_BIT_MASK(28)) < 0 || - pci_set_consistent_dma_mask(pci, DMA_BIT_MASK(28)) < 0) { - dev_err(card->dev, "error to set 28bit mask DMA\n"); + + if (dma_set_mask_and_coherent(&pci->dev, DMA_BIT_MASK(28)) < 0) { + dev_err(&pci->dev, "error to set 28bit mask DMA\n"); pci_disable_device(pci); return -ENXIO; } -- 2.27.0

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Announcement for alsa-gobject v0.2.0 release
by Takashi Sakamoto 21 Nov '20

21 Nov '20

Hi, This is an announcement for the second official release of alsa-gobject project[1]. The release is available in below URL: * https://github.com/alsa-project/alsa-gobject/releases/tag/v0.2.0 It includes some enhancements and bug fixes. * Some implementations of GLib GQuark is exported as error domain and corresponding enumerations are added. This improves error reporting in each libraries. It closes issue #47[2]. * Selection of substream in ALSARawmidi.StreamPair.open() now works well. This closes issue #53[3]. * Prototypes of some methods in ALSACtl.Card object for data of TLV(Type-Length-Value) in ALSA control interface are changed without backward compatibility. Corresponding exported symbols are maintained by new symbol version. In detail, refer to #55[4]. * Error handling is changed so that function call with invalid argument just returns with warnings instead of generating GError, according to convention for GLib application. Memory allocation failure is supposed to be unrecoverable error and aborts program, as well. * It's possible to build for older version Linux kernel, therefore build dependency is now Linux kernel v4.5 or later. For the new release, documentations are also updated. They're auto-generated by gtk-doc[5] from function annotations: * https://alsa-project.github.io/alsa-gobject-docs/ The new release of Rust crates are available as well in repository. They're auto-generated by gtk-rs/gir[6]: * https://github.com/alsa-project/alsa-gobject-rs/releases/tag/v0.2.0 I note that ALSA PCM interface is not supported yet. Please refer to my announcement for v0.1.0 for the reason[7]. [1] https://github.com/alsa-project/alsa-gobject [2] https://github.com/alsa-project/alsa-gobject/issues/47 [3] https://github.com/alsa-project/alsa-gobject/issues/53 [4] https://github.com/alsa-project/alsa-gobject/pull/55 [5] https://developer.gnome.org/gtk-doc-manual/ [6] https://github.com/gtk-rs/gir [7] https://mailman.alsa-project.org/pipermail/alsa-devel/2020-June/169488.html Regards Takashi Sakamoto

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