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KASAN: invalid-free in snd_seq_port_disconnect
by syzbot 31 Jul '20

31 Jul '20

Hello, syzbot found the following issue on: HEAD commit: d3590ebf Merge tag 'audit-pr-20200729' of git://git.kernel.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=1797d388900000 kernel config: https://syzkaller.appspot.com/x/.config?x=812bbfcb6ae2cd60 dashboard link: https://syzkaller.appspot.com/bug?extid=9d2abfef257f3e2d4713 compiler: clang version 10.0.0 (https://github.com/llvm/llvm-project/ c2443155a0fb245c8f17f2c1c72b6ea391e86e81) syz repro: https://syzkaller.appspot.com/x/repro.syz?x=14761be4900000 IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+9d2abfef257f3e2d4713(a)syzkaller.appspotmail.com ================================================================== BUG: KASAN: double-free or invalid-free in snd_seq_port_disconnect+0x570/0x610 sound/core/seq/seq_ports.c:614 CPU: 1 PID: 7530 Comm: syz-executor.0 Not tainted 5.8.0-rc7-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1f0/0x31e lib/dump_stack.c:118 print_address_description+0x66/0x5a0 mm/kasan/report.c:383 kasan_report_invalid_free+0x54/0xd0 mm/kasan/report.c:477 __kasan_slab_free+0xae/0x170 mm/kasan/common.c:443 __cache_free mm/slab.c:3426 [inline] kfree+0x10a/0x220 mm/slab.c:3757 snd_seq_port_disconnect+0x570/0x610 sound/core/seq/seq_ports.c:614 snd_seq_ioctl_unsubscribe_port+0x349/0x6c0 sound/core/seq/seq_clientmgr.c:1525 snd_seq_oss_midi_close+0x397/0x620 sound/core/seq/oss/seq_oss_midi.c:405 snd_seq_oss_synth_reset+0x335/0x8b0 sound/core/seq/oss/seq_oss_synth.c:406 snd_seq_oss_reset+0x5b/0x250 sound/core/seq/oss/seq_oss_init.c:435 snd_seq_oss_ioctl+0x5c2/0x1090 sound/core/seq/oss/seq_oss_ioctl.c:93 odev_ioctl+0x51/0x70 sound/core/seq/oss/seq_oss.c:174 vfs_ioctl fs/ioctl.c:48 [inline] ksys_ioctl fs/ioctl.c:753 [inline] __do_sys_ioctl fs/ioctl.c:762 [inline] __se_sys_ioctl+0xf9/0x160 fs/ioctl.c:760 do_syscall_64+0x73/0xe0 arch/x86/entry/common.c:384 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x45c429 Code: 8d b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 5b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f25d0cb3c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00000000000154c0 RCX: 000000000045c429 RDX: 0000000000000000 RSI: 0000000000005100 RDI: 0000000000000003 RBP: 000000000078bfd8 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000078bfac R13: 00007ffe03b9f5df R14: 00007f25d0cb49c0 R15: 000000000078bfac Allocated by task 7529: save_stack mm/kasan/common.c:48 [inline] set_track mm/kasan/common.c:56 [inline] __kasan_kmalloc+0x103/0x140 mm/kasan/common.c:494 kmem_cache_alloc_trace+0x234/0x300 mm/slab.c:3551 kmalloc include/linux/slab.h:555 [inline] kzalloc include/linux/slab.h:669 [inline] snd_seq_port_connect+0x66/0x460 sound/core/seq/seq_ports.c:553 snd_seq_ioctl_subscribe_port+0x349/0x6c0 sound/core/seq/seq_clientmgr.c:1484 snd_seq_oss_midi_open+0x4db/0x830 sound/core/seq/oss/seq_oss_midi.c:364 snd_seq_oss_synth_setup_midi+0x108/0x510 sound/core/seq/oss/seq_oss_synth.c:269 snd_seq_oss_open+0x899/0xe90 sound/core/seq/oss/seq_oss_init.c:261 odev_open+0x5e/0x90 sound/core/seq/oss/seq_oss.c:125 chrdev_open+0x498/0x580 fs/char_dev.c:414 do_dentry_open+0x813/0x1070 fs/open.c:828 do_open fs/namei.c:3243 [inline] path_openat+0x278d/0x37f0 fs/namei.c:3360 do_filp_open+0x191/0x3a0 fs/namei.c:3387 do_sys_openat2+0x463/0x770 fs/open.c:1179 do_sys_open fs/open.c:1195 [inline] __do_sys_openat fs/open.c:1209 [inline] __se_sys_openat fs/open.c:1204 [inline] __x64_sys_openat+0x1c8/0x1f0 fs/open.c:1204 do_syscall_64+0x73/0xe0 arch/x86/entry/common.c:384 entry_SYSCALL_64_after_hwframe+0x44/0xa9 Freed by task 7529: save_stack mm/kasan/common.c:48 [inline] set_track mm/kasan/common.c:56 [inline] kasan_set_free_info mm/kasan/common.c:316 [inline] __kasan_slab_free+0x114/0x170 mm/kasan/common.c:455 __cache_free mm/slab.c:3426 [inline] kfree+0x10a/0x220 mm/slab.c:3757 snd_seq_port_disconnect+0x570/0x610 sound/core/seq/seq_ports.c:614 snd_seq_ioctl_unsubscribe_port+0x349/0x6c0 sound/core/seq/seq_clientmgr.c:1525 snd_seq_oss_midi_close+0x397/0x620 sound/core/seq/oss/seq_oss_midi.c:405 snd_seq_oss_synth_reset+0x335/0x8b0 sound/core/seq/oss/seq_oss_synth.c:406 snd_seq_oss_reset+0x5b/0x250 sound/core/seq/oss/seq_oss_init.c:435 snd_seq_oss_ioctl+0x5c2/0x1090 sound/core/seq/oss/seq_oss_ioctl.c:93 odev_ioctl+0x51/0x70 sound/core/seq/oss/seq_oss.c:174 vfs_ioctl fs/ioctl.c:48 [inline] ksys_ioctl fs/ioctl.c:753 [inline] __do_sys_ioctl fs/ioctl.c:762 [inline] __se_sys_ioctl+0xf9/0x160 fs/ioctl.c:760 do_syscall_64+0x73/0xe0 arch/x86/entry/common.c:384 entry_SYSCALL_64_after_hwframe+0x44/0xa9 The buggy address belongs to the object at ffff8880a3acdd00 which belongs to the cache kmalloc-128 of size 128 The buggy address is located 0 bytes inside of 128-byte region [ffff8880a3acdd00, ffff8880a3acdd80) The buggy address belongs to the page: page:ffffea00028eb340 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 flags: 0xfffe0000000200(slab) raw: 00fffe0000000200 ffffea00025c5208 ffffea0002a371c8 ffff8880aa400700 raw: 0000000000000000 ffff8880a3acd000 0000000100000010 0000000000000000 page dumped because: kasan: bad access detected Memory state around the buggy address: ffff8880a3acdc00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffff8880a3acdc80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc >ffff8880a3acdd00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ^ ffff8880a3acdd80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff8880a3acde00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ================================================================== --- This report is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller(a)googlegroups.com. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. syzbot can test patches for this issue, for details see: https://goo.gl/tpsmEJ#testing-patches

3 2

[PATCH v2 0/2] Add documentation and machine driver for SC7180 sound card
by Cheng-Yi Chiang 31 Jul '20

31 Jul '20

Note: - The machine driver patch depends on LPASS patch series so it is not ready to be merged now. ASoC: qcom: Add support for SC7180 lpass variant https://patchwork.kernel.org/cover/11650649/ - The machine driver patch is made by the collaboration of Cheng-Yi Chiang <cychiang(a)chromium.org> Rohit kumar <rohitkr(a)codeaurora.org> Ajit Pandey <ajitp(a)codeaurora.org> But Ajit has left codeaurora. Changes from v1 to v2: - Ducumentation: Addressed all suggestions from Doug. - Machine driver: - Fix comment style for license. - Sort includes. - Remove sc7180_snd_hw_params. - Remove sc7180_dai_init and use aux device instead for headset jack registration. - Statically define format for Primary MI2S. - Atomic is not a concern because there is mutex in card to make sure startup and shutdown happen sequentially. - Fix missing return -EINVAL in startup. - Use static sound card. - Use devm_kzalloc to avoid kfree. Thanks for the review! Ajit Pandey (1): ASoC: qcom: sc7180: Add machine driver for sound card registration Cheng-Yi Chiang (1): ASoC: qcom: dt-bindings: Add sc7180 machine bindings .../bindings/sound/qcom,sc7180.yaml | 130 ++++++ sound/soc/qcom/Kconfig | 11 + sound/soc/qcom/Makefile | 2 + sound/soc/qcom/sc7180.c | 380 ++++++++++++++++++ 4 files changed, 523 insertions(+) create mode 100644 Documentation/devicetree/bindings/sound/qcom,sc7180.yaml create mode 100644 sound/soc/qcom/sc7180.c -- 2.28.0.rc0.105.gf9edc3c819-goog

4 10

[RFC] ALSA: hda: Add workaround to adapt to Loongson 7A1000 controller
by Kaige Li 31 Jul '20

31 Jul '20

There's some issues that cause palyback without a sound on Loongson platform (3A3000 + 7A1000) with a Realtek ALC269 codec. After lengthy debugging sessions, we solved it by adding workaround. Signed-off-by: Kaige Li <likaige(a)loongson.cn> --- sound/hda/hdac_controller.c | 63 ++++++++++++++++++++++++++++++++++++------ sound/hda/hdac_stream.c | 22 +++++++++++++-- sound/pci/hda/hda_controller.h | 2 +- sound/pci/hda/hda_intel.c | 9 +++++- 4 files changed, 83 insertions(+), 13 deletions(-) diff --git a/sound/hda/hdac_controller.c b/sound/hda/hdac_controller.c index 011b17c..f60f49a 100644 --- a/sound/hda/hdac_controller.c +++ b/sound/hda/hdac_controller.c @@ -9,6 +9,7 @@ #include <sound/core.h> #include <sound/hdaudio.h> #include <sound/hda_register.h> +#include "../pci/hda/hda_controller.h" #include "local.h" /* clear CORB read pointer properly */ @@ -42,6 +43,8 @@ static void azx_clear_corbrp(struct hdac_bus *bus) */ void snd_hdac_bus_init_cmd_io(struct hdac_bus *bus) { + struct azx *chip = bus_to_azx(bus); + WARN_ON_ONCE(!bus->rb.area); spin_lock_irq(&bus->reg_lock); @@ -58,11 +61,15 @@ void snd_hdac_bus_init_cmd_io(struct hdac_bus *bus) /* reset the corb hw read pointer */ snd_hdac_chip_writew(bus, CORBRP, AZX_CORBRP_RST); - if (!bus->corbrp_self_clear) + if (chip->driver_caps & AZX_DCAPS_LOONGSON_HDA_WORKAROUND) + snd_hdac_chip_writew(bus, CORBRP, 0); + else if (!bus->corbrp_self_clear) azx_clear_corbrp(bus); /* enable corb dma */ snd_hdac_chip_writeb(bus, CORBCTL, AZX_CORBCTL_RUN); + if (chip->driver_caps & AZX_DCAPS_LOONGSON_HDA_WORKAROUND) + snd_hdac_chip_readb(bus, CORBCTL); /* RIRB set up */ bus->rirb.addr = bus->rb.addr + 2048; @@ -79,7 +86,12 @@ void snd_hdac_bus_init_cmd_io(struct hdac_bus *bus) /* set N=1, get RIRB response interrupt for new entry */ snd_hdac_chip_writew(bus, RINTCNT, 1); /* enable rirb dma and response irq */ - snd_hdac_chip_writeb(bus, RIRBCTL, AZX_RBCTL_DMA_EN | AZX_RBCTL_IRQ_EN); + if (chip->driver_caps & AZX_DCAPS_LOONGSON_HDA_WORKAROUND) { + snd_hdac_chip_writeb(bus, RIRBCTL, AZX_RBCTL_DMA_EN); + snd_hdac_chip_readb(bus, RIRBCTL); + } else { + snd_hdac_chip_writeb(bus, RIRBCTL, AZX_RBCTL_DMA_EN | AZX_RBCTL_IRQ_EN); + } /* Accept unsolicited responses */ snd_hdac_chip_updatel(bus, GCTL, AZX_GCTL_UNSOL, AZX_GCTL_UNSOL); spin_unlock_irq(&bus->reg_lock); @@ -132,6 +144,18 @@ static unsigned int azx_command_addr(u32 cmd) return addr; } +static unsigned int azx_response_addr(u32 res) +{ + unsigned int addr = res & 0xf; + + if (addr >= AZX_MAX_CODECS) { + snd_BUG(); + addr = 0; + } + + return addr; +} + /** * snd_hdac_bus_send_cmd - send a command verb via CORB * @bus: HD-audio core bus @@ -189,6 +213,7 @@ void snd_hdac_bus_update_rirb(struct hdac_bus *bus) unsigned int rp, wp; unsigned int addr; u32 res, res_ex; + struct azx *chip = bus_to_azx(bus); wp = snd_hdac_chip_readw(bus, RIRBWP); if (wp == 0xffff) { @@ -207,7 +232,11 @@ void snd_hdac_bus_update_rirb(struct hdac_bus *bus) rp = bus->rirb.rp << 1; /* an RIRB entry is 8-bytes */ res_ex = le32_to_cpu(bus->rirb.buf[rp + 1]); res = le32_to_cpu(bus->rirb.buf[rp]); - addr = res_ex & 0xf; + if (chip->driver_caps & AZX_DCAPS_LOONGSON_HDA_WORKAROUND) { + addr = azx_response_addr(res_ex); + } else { + addr = res_ex & 0xf; + } if (addr >= HDA_MAX_CODECS) { dev_err(bus->dev, "spurious response %#x:%#x, rp = %d, wp = %d", @@ -245,6 +274,7 @@ int snd_hdac_bus_get_response(struct hdac_bus *bus, unsigned int addr, unsigned long loopcounter; wait_queue_entry_t wait; bool warned = false; + struct azx *chip = bus_to_azx(bus); init_wait_entry(&wait, 0); timeout = jiffies + msecs_to_jiffies(1000); @@ -254,8 +284,11 @@ int snd_hdac_bus_get_response(struct hdac_bus *bus, unsigned int addr, if (!bus->polling_mode) prepare_to_wait(&bus->rirb_wq, &wait, TASK_UNINTERRUPTIBLE); - if (bus->polling_mode) + if (bus->polling_mode) { + if (chip->driver_caps & AZX_DCAPS_LOONGSON_HDA_WORKAROUND) + bus->rirb.cmds[addr] %= AZX_MAX_RIRB_ENTRIES; snd_hdac_bus_update_rirb(bus); + } if (!bus->rirb.cmds[addr]) { if (res) *res = bus->rirb.res[addr]; /* the last value */ @@ -484,16 +517,24 @@ static void azx_int_disable(struct hdac_bus *bus) static void azx_int_clear(struct hdac_bus *bus) { struct hdac_stream *azx_dev; + struct azx *chip = bus_to_azx(bus); /* clear stream status */ - list_for_each_entry(azx_dev, &bus->stream_list, list) - snd_hdac_stream_writeb(azx_dev, SD_STS, SD_INT_MASK); + list_for_each_entry(azx_dev, &bus->stream_list, list) { + if (chip->driver_caps & AZX_DCAPS_LOONGSON_HDA_WORKAROUND) + snd_hdac_stream_updateb(azx_dev, SD_STS, 0, 0); + else + snd_hdac_stream_writeb(azx_dev, SD_STS, SD_INT_MASK); + } /* clear STATESTS */ snd_hdac_chip_writew(bus, STATESTS, STATESTS_INT_MASK); /* clear rirb status */ - snd_hdac_chip_writeb(bus, RIRBSTS, RIRB_INT_MASK); + if (chip->driver_caps & AZX_DCAPS_LOONGSON_HDA_WORKAROUND) + snd_hdac_chip_updateb(bus, RIRBSTS, ~RIRB_INT_MASK, 0); + else + snd_hdac_chip_writeb(bus, RIRBSTS, RIRB_INT_MASK); /* clear int status */ snd_hdac_chip_writel(bus, INTSTS, AZX_INT_CTRL_EN | AZX_INT_ALL_STREAM); @@ -585,11 +626,17 @@ int snd_hdac_bus_handle_stream_irq(struct hdac_bus *bus, unsigned int status, struct hdac_stream *azx_dev; u8 sd_status; int handled = 0; + struct azx *chip = bus_to_azx(bus); list_for_each_entry(azx_dev, &bus->stream_list, list) { if (status & azx_dev->sd_int_sta_mask) { sd_status = snd_hdac_stream_readb(azx_dev, SD_STS); - snd_hdac_stream_writeb(azx_dev, SD_STS, SD_INT_MASK); + if (chip->driver_caps & AZX_DCAPS_LOONGSON_HDA_WORKAROUND) { + snd_hdac_stream_writeb(azx_dev, SD_STS, sd_status); + snd_hdac_stream_readb(azx_dev, SD_STS); + } else { + snd_hdac_stream_writeb(azx_dev, SD_STS, SD_INT_MASK); + } handled |= 1 << azx_dev->index; if (!azx_dev->substream || !azx_dev->running || !(sd_status & SD_INT_COMPLETE)) diff --git a/sound/hda/hdac_stream.c b/sound/hda/hdac_stream.c index a38a2af..fa91832 100644 --- a/sound/hda/hdac_stream.c +++ b/sound/hda/hdac_stream.c @@ -12,6 +12,7 @@ #include <sound/hdaudio.h> #include <sound/hda_register.h> #include "trace.h" +#include "../pci/hda/hda_controller.h" /** * snd_hdac_get_stream_stripe_ctl - get stripe control value @@ -83,6 +84,7 @@ EXPORT_SYMBOL_GPL(snd_hdac_stream_init); void snd_hdac_stream_start(struct hdac_stream *azx_dev, bool fresh_start) { struct hdac_bus *bus = azx_dev->bus; + struct azx *chip = bus_to_azx(bus); int stripe_ctl; trace_snd_hdac_stream_start(bus, azx_dev); @@ -105,7 +107,11 @@ void snd_hdac_stream_start(struct hdac_stream *azx_dev, bool fresh_start) stripe_ctl); } /* set DMA start and interrupt mask */ - snd_hdac_stream_updateb(azx_dev, SD_CTL, + if (chip->driver_caps & AZX_DCAPS_LOONGSON_HDA_WORKAROUND) + snd_hdac_stream_updatel(azx_dev, SD_CTL, + 0, SD_CTL_DMA_START | SD_INT_MASK); + else + snd_hdac_stream_updateb(azx_dev, SD_CTL, 0, SD_CTL_DMA_START | SD_INT_MASK); azx_dev->running = true; } @@ -190,6 +196,7 @@ int snd_hdac_stream_setup(struct hdac_stream *azx_dev) struct hdac_bus *bus = azx_dev->bus; struct snd_pcm_runtime *runtime; unsigned int val; + struct azx *chip = bus_to_azx(bus); if (azx_dev->substream) runtime = azx_dev->substream->runtime; @@ -206,8 +213,14 @@ int snd_hdac_stream_setup(struct hdac_stream *azx_dev) snd_hdac_stream_writel(azx_dev, SD_CTL, val); /* program the length of samples in cyclic buffer */ - snd_hdac_stream_writel(azx_dev, SD_CBL, azx_dev->bufsize); - + if (chip->driver_caps & AZX_DCAPS_LOONGSON_HDA_WORKAROUND) { + if (azx_dev->substream->stream == SNDRV_PCM_STREAM_PLAYBACK) + snd_hdac_stream_writel(azx_dev, SD_CBL, azx_dev->bufsize - 64); + else + snd_hdac_stream_writel(azx_dev, SD_CBL, azx_dev->bufsize - 16); + } else { + snd_hdac_stream_writel(azx_dev, SD_CBL, azx_dev->bufsize); + } /* program the stream format */ /* this value needs to be the same as the one programmed */ snd_hdac_stream_writew(azx_dev, SD_FORMAT, azx_dev->format_val); @@ -412,6 +425,7 @@ int snd_hdac_stream_setup_periods(struct hdac_stream *azx_dev) __le32 *bdl; int i, ofs, periods, period_bytes; int pos_adj, pos_align; + struct azx *chip = bus_to_azx(bus); /* reset BDL address */ snd_hdac_stream_writel(azx_dev, SD_BDLPL, 0); @@ -426,6 +440,8 @@ int snd_hdac_stream_setup_periods(struct hdac_stream *azx_dev) azx_dev->frags = 0; pos_adj = bus->bdl_pos_adj; + if (chip->driver_caps & AZX_DCAPS_LOONGSON_HDA_WORKAROUND) + pos_adj = 0; if (!azx_dev->no_period_wakeup && pos_adj > 0) { pos_align = pos_adj; pos_adj = (pos_adj * runtime->rate + 47999) / 48000; diff --git a/sound/pci/hda/hda_controller.h b/sound/pci/hda/hda_controller.h index fe17168..74fae0b 100644 --- a/sound/pci/hda/hda_controller.h +++ b/sound/pci/hda/hda_controller.h @@ -36,7 +36,7 @@ /* 19 unused */ #define AZX_DCAPS_OLD_SSYNC (1 << 20) /* Old SSYNC reg for ICH */ #define AZX_DCAPS_NO_ALIGN_BUFSIZE (1 << 21) /* no buffer size alignment */ -/* 22 unused */ +#define AZX_DCAPS_LOONGSON_HDA_WORKAROUND (1 << 22) /* Loongson-HDA workaround */ #define AZX_DCAPS_4K_BDLE_BOUNDARY (1 << 23) /* BDLE in 4k boundary */ /* 24 unused */ #define AZX_DCAPS_COUNT_LPIB_DELAY (1 << 25) /* Take LPIB as delay */ diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c index ea1d535..573e12f 100644 --- a/sound/pci/hda/hda_intel.c +++ b/sound/pci/hda/hda_intel.c @@ -678,6 +678,8 @@ static int azx_position_ok(struct azx *chip, struct azx_dev *azx_dev) u32 wallclk; unsigned int pos; + if (chip->driver_caps & AZX_DCAPS_LOONGSON_HDA_WORKAROUND) + return 1; wallclk = azx_readl(chip, WALLCLK) - azx_dev->core.start_wallclk; if (wallclk < (azx_dev->core.period_wallclk * 2) / 3) return -1; /* bogus (too early) interrupt */ @@ -1566,6 +1568,10 @@ static int check_position_fix(struct azx *chip, int fix) dev_dbg(chip->card->dev, "Using SKL position fix\n"); return POS_FIX_SKL; } + if (chip->driver_caps & AZX_DCAPS_LOONGSON_HDA_WORKAROUND) { + dev_dbg(chip->card->dev, "Using LPIB position fix\n"); + return POS_FIX_LPIB; + } return POS_FIX_AUTO; } @@ -2736,7 +2742,8 @@ static const struct pci_device_id azx_ids[] = { /* Zhaoxin */ { PCI_DEVICE(0x1d17, 0x3288), .driver_data = AZX_DRIVER_ZHAOXIN }, /* Loongson */ - { PCI_DEVICE(0x0014, 0x7a07), .driver_data = AZX_DRIVER_GENERIC }, + { PCI_DEVICE(0x0014, 0x7a07), + .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_LOONGSON_HDA_WORKAROUND}, { 0, } }; MODULE_DEVICE_TABLE(pci, azx_ids); -- 2.1.0

2 2

Ubuntu 20.04 Internal Microphone is not working. Input Device drop-down menu is empty in Sound settings
by GitHub issues - edited 31 Jul '20

31 Jul '20

alsa-project/alsa-utils issue #49 was edited from ReyanshKharga: [Link to question](https://askubuntu.com/questions/1262607/ubuntu-20-04-internal-mic… Issue URL : https://github.com/alsa-project/alsa-utils/issues/49 Repository URL: https://github.com/alsa-project/alsa-utils

1 0

Ubuntu 20.04 Internal Microphone is not working. Input Device drop-down menu is empty in Sound settings
by GitHub issues - opened 31 Jul '20

31 Jul '20

alsa-project/alsa-utils issue #49 was opened from ReyanshKharga: [](https://askubuntu.com/questions/1262607/ubuntu-20-04-internal-microphone-is-not-working-input-device-drop-down-menu-is) Issue URL : https://github.com/alsa-project/alsa-utils/issues/49 Repository URL: https://github.com/alsa-project/alsa-utils

1 0

[PATCH 0/7] drop unnecessary list_empty
by Julia Lawall 31 Jul '20

31 Jul '20

The various list iterators are able to handle an empty list. The only effect of avoiding the loop is not initializing some index variables. Drop list_empty tests in cases where these variables are not used. The semantic patch that makes these changes is as follows: (http://coccinelle.lip6.fr/) <smpl> @@ expression x,e; iterator name list_for_each_entry; statement S; identifier i; @@ -if (!(list_empty(x))) { list_for_each_entry(i,x,...) S - } ... when != i ? i = e @@ expression x,e; iterator name list_for_each_entry_safe; statement S; identifier i,j; @@ -if (!(list_empty(x))) { list_for_each_entry_safe(i,j,x,...) S - } ... when != i when != j ( i = e; | ? j = e; ) @@ expression x,e; iterator name list_for_each; statement S; identifier i; @@ -if (!(list_empty(x))) { list_for_each(i,x) S - } ... when != i ? i = e @@ expression x,e; iterator name list_for_each_safe; statement S; identifier i,j; @@ -if (!(list_empty(x))) { list_for_each_safe(i,j,x) S - } ... when != i when != j ( i = e; | ? j = e; ) // ------------------- @@ expression x,e; statement S; identifier i; @@ -if (!(list_empty(x))) list_for_each_entry(i,x,...) S ... when != i ? i = e @@ expression x,e; statement S; identifier i,j; @@ -if (!(list_empty(x))) list_for_each_entry_safe(i,j,x,...) S ... when != i when != j ( i = e; | ? j = e; ) @@ expression x,e; statement S; identifier i; @@ -if (!(list_empty(x))) list_for_each(i,x) S ... when != i ? i = e @@ expression x,e; statement S; identifier i,j; @@ -if (!(list_empty(x))) list_for_each_safe(i,j,x) S ... when != i when != j ( i = e; | ? j = e; ) </smpl> --- drivers/media/pci/saa7134/saa7134-core.c | 14 ++--- drivers/media/usb/cx231xx/cx231xx-core.c | 16 ++---- drivers/media/usb/tm6000/tm6000-core.c | 24 +++------- drivers/net/ethernet/mellanox/mlx5/core/steering/dr_matcher.c | 13 ++--- drivers/net/ethernet/mellanox/mlx5/core/steering/dr_rule.c | 5 -- drivers/net/ethernet/sfc/ptp.c | 20 +++----- drivers/net/wireless/ath/dfs_pattern_detector.c | 15 ++---- sound/soc/intel/atom/sst/sst_loader.c | 10 +--- sound/soc/intel/skylake/skl-pcm.c | 8 +-- sound/soc/intel/skylake/skl-topology.c | 5 -- 10 files changed, 53 insertions(+), 77 deletions(-)

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[PATCH] ASoC: soc-core: Fix regression causing sysfs entries to disappear
by Charles Keepax 31 Jul '20

31 Jul '20

The allocation order of things in soc_new_pcm_runtime was changed to move the device_register before the allocation of the rtd structure. This was to allow the rtd allocation to be managed by devm. However currently the sysfs entries are added by device_register and their visibility depends on variables within the rtd structure, this causes the pmdown_time and dapm_widgets sysfs entries to be missing for all rtds. Correct this issue by manually calling device_add_groups after the appropriate information is available. Fixes: d918a37610b1 ("ASoC: soc-core: tidyup soc_new_pcm_runtime() alloc order") Signed-off-by: Charles Keepax <ckeepax(a)opensource.cirrus.com> --- sound/soc/soc-core.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c index defd96b14c287..df4c7116f308c 100644 --- a/sound/soc/soc-core.c +++ b/sound/soc/soc-core.c @@ -446,7 +446,6 @@ static struct snd_soc_pcm_runtime *soc_new_pcm_runtime( dev->parent = card->dev; dev->release = soc_release_rtd_dev; - dev->groups = soc_dev_attr_groups; dev_set_name(dev, "%s", dai_link->name); @@ -503,6 +502,10 @@ static struct snd_soc_pcm_runtime *soc_new_pcm_runtime( /* see for_each_card_rtds */ list_add_tail(&rtd->list, &card->rtd_list); + ret = device_add_groups(dev, soc_dev_attr_groups); + if (ret < 0) + goto free_rtd; + return rtd; free_rtd: -- 2.11.0

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[PATCH v4] ASoC: dt-bindings: ak4613: switch to yaml base Documentation
by Kuninori Morimoto 31 Jul '20

31 Jul '20

From: Kuninori Morimoto <kuninori.morimoto.gx(a)renesas.com> This patch switches from .txt base to .yaml base Document. Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx(a)renesas.com> Reviewed-by: Rob Herring <robh(a)kernel.org> Link: https://lore.kernel.org/r/87mu4cxlo2.wl-kuninori.morimoto.gx@renesas.com Link: https://lore.kernel.org/r/87o8pf3923.wl-kuninori.morimoto.gx@renesas.com --- v3 -> v4 - rebase v2 patch - use generic node name Hi Mark, Rob I posted ak4613 3 times (= v1 - v3), and v2 patch got Reviewed-by from Rob (= https://lore.kernel.org/r/20200715220920.GA903738@bogus). But in the same time, it got review from Fabio to use generic node name. Then, I used v1 for v3 somehow and everything becoming wrong. This patch should be OK. I added Rob's Reviewed-by on this patch, too. .../devicetree/bindings/sound/ak4613.txt | 27 ---------- .../devicetree/bindings/sound/ak4613.yaml | 49 +++++++++++++++++++ 2 files changed, 49 insertions(+), 27 deletions(-) delete mode 100644 Documentation/devicetree/bindings/sound/ak4613.txt create mode 100644 Documentation/devicetree/bindings/sound/ak4613.yaml diff --git a/Documentation/devicetree/bindings/sound/ak4613.txt b/Documentation/devicetree/bindings/sound/ak4613.txt deleted file mode 100644 index 49a2e74fd9cb..000000000000 --- a/Documentation/devicetree/bindings/sound/ak4613.txt +++ /dev/null @@ -1,27 +0,0 @@ -AK4613 I2C transmitter - -This device supports I2C mode only. - -Required properties: - -- compatible : "asahi-kasei,ak4613" -- reg : The chip select number on the I2C bus - -Optional properties: -- asahi-kasei,in1-single-end : Boolean. Indicate input / output pins are single-ended. -- asahi-kasei,in2-single-end rather than differential. -- asahi-kasei,out1-single-end -- asahi-kasei,out2-single-end -- asahi-kasei,out3-single-end -- asahi-kasei,out4-single-end -- asahi-kasei,out5-single-end -- asahi-kasei,out6-single-end - -Example: - -&i2c { - ak4613: ak4613@10 { - compatible = "asahi-kasei,ak4613"; - reg = <0x10>; - }; -}; diff --git a/Documentation/devicetree/bindings/sound/ak4613.yaml b/Documentation/devicetree/bindings/sound/ak4613.yaml new file mode 100644 index 000000000000..ef4055ef0ccd --- /dev/null +++ b/Documentation/devicetree/bindings/sound/ak4613.yaml @@ -0,0 +1,49 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/sound/ak4613.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: AK4613 I2C transmitter Device Tree Bindings + +maintainers: + - Kuninori Morimoto <kuninori.morimoto.gx(a)renesas.com> + +properties: + compatible: + const: asahi-kasei,ak4613 + + reg: + maxItems: 1 + + clocks: + maxItems: 1 + + "#sound-dai-cells": + const: 0 + +patternProperties: + "^asahi-kasei,in[1-2]-single-end$": + description: Input Pin 1 - 2. + $ref: /schemas/types.yaml#/definitions/flag + + "^asahi-kasei,out[1-6]-single-end$": + description: Output Pin 1 - 6. + $ref: /schemas/types.yaml#/definitions/flag + +required: + - compatible + - reg + +additionalProperties: false + +examples: + - | + i2c { + #address-cells = <1>; + #size-cells = <0>; + ak4613: codec@10 { + compatible = "asahi-kasei,ak4613"; + reg = <0x10>; + }; + }; -- 2.25.1

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[PATCH 0/4] ASoC: meson: tdm fixes
by Jerome Brunet 31 Jul '20

31 Jul '20

This patcheset is collection of fixes for the TDM input and output the axg audio architecture. Its fixes: - slave mode format setting - g12 and sm1 skew offset - tdm clock inversion - standard daifmt props names which don't require a specific prefix Jerome Brunet (4): ASoC: meson: axg-tdm-interface: fix link fmt setup ASoC: meson: axg-tdmin: fix g12a skew ASoC: meson: axg-tdm-formatters: fix sclk inversion ASoC: meson: cards: remove DT_PREFIX for standard daifmt properties sound/soc/meson/axg-tdm-formatter.c | 11 ++++++----- sound/soc/meson/axg-tdm-formatter.h | 1 - sound/soc/meson/axg-tdm-interface.c | 26 +++++++++++++++++--------- sound/soc/meson/axg-tdmin.c | 16 +++++++++++++++- sound/soc/meson/axg-tdmout.c | 3 --- sound/soc/meson/meson-card-utils.c | 2 +- 6 files changed, 39 insertions(+), 20 deletions(-) -- 2.25.4

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[PATCH] ASoC: SOF: imx: use resource_size
by Julia Lawall 31 Jul '20

31 Jul '20

Use resource_size rather than a verbose computation on the end and start fields. The semantic patch that makes this change is as follows: (http://coccinelle.lip6.fr/) <smpl> @@ struct resource ptr; @@ - (ptr.end - ptr.start + 1) + resource_size(&ptr) </smpl> Signed-off-by: Julia Lawall <Julia.Lawall(a)inria.fr> --- sound/soc/sof/imx/imx8m.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff -u -p a/sound/soc/sof/imx/imx8m.c b/sound/soc/sof/imx/imx8m.c --- a/sound/soc/sof/imx/imx8m.c +++ b/sound/soc/sof/imx/imx8m.c @@ -188,8 +188,7 @@ static int imx8m_probe(struct snd_sof_de } sdev->bar[SOF_FW_BLK_TYPE_SRAM] = devm_ioremap_wc(sdev->dev, res.start, - res.end - res.start + - 1); + resource_size(&res)); if (!sdev->bar[SOF_FW_BLK_TYPE_SRAM]) { dev_err(sdev->dev, "failed to ioremap mem 0x%x size 0x%x\n", base, size);

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