May 2015 - Alsa-devel - mailman.alsa-project.org

[alsa-devel] [PATCH V4 0/5] tas571x amplifier driver
by Kevin Cernekee 06 May '15

06 May '15

V3->V4: Eliminate unnecessary dev->of_node NULL check. Move the "should I sync this register?" test into a common helper function. Clear map->no_sync_defaults at the end of the regcache_sync functions. Kevin Cernekee (5): regmap: Add a helper function for regcache sync test regmap: Use regcache_mark_dirty() to indicate power loss or reset ASoC: tas571x: Add DT binding document ASoC: tas571x: New driver for TI TAS571x power amplifiers MAINTAINERS: Add entry for tas571x ASoC codec driver .../devicetree/bindings/sound/tas571x.txt | 41 ++ MAINTAINERS | 6 + drivers/base/regmap/internal.h | 3 + drivers/base/regmap/regcache.c | 45 +- sound/soc/codecs/Kconfig | 5 + sound/soc/codecs/Makefile | 2 + sound/soc/codecs/tas571x.c | 515 +++++++++++++++++++++ sound/soc/codecs/tas571x.h | 33 ++ 8 files changed, 635 insertions(+), 15 deletions(-) create mode 100644 Documentation/devicetree/bindings/sound/tas571x.txt create mode 100644 sound/soc/codecs/tas571x.c create mode 100644 sound/soc/codecs/tas571x.h -- 2.2.0.rc0.207.ga3a616c

2 10

[alsa-devel] [PATCH] ASoC: Intel: Enabled button jack for BSW platform with rt5650 codec
by yang.a.fang＠intel.com 06 May '15

06 May '15

From: "Fang, Yang A" <yang.a.fang(a)intel.com> rt5650 codec supports 4 buttons detections so enabled it Signed-off-by: Fang, Yang A <yang.a.fang(a)intel.com> --- sound/soc/intel/boards/cht_bsw_rt5645.c | 23 ++++++++++++++++++++++- 1 file changed, 22 insertions(+), 1 deletion(-) diff --git a/sound/soc/intel/boards/cht_bsw_rt5645.c b/sound/soc/intel/boards/cht_bsw_rt5645.c index 8f96c21..1468c3d 100644 --- a/sound/soc/intel/boards/cht_bsw_rt5645.c +++ b/sound/soc/intel/boards/cht_bsw_rt5645.c @@ -43,6 +43,7 @@ struct cht_acpi_card { struct cht_mc_private { struct snd_soc_jack hp_jack; struct snd_soc_jack mic_jack; + struct snd_soc_jack btn_jack; struct cht_acpi_card *acpi_card; }; @@ -182,6 +183,7 @@ static int cht_codec_init(struct snd_soc_pcm_runtime *runtime) struct snd_soc_codec *codec = runtime->codec; struct snd_soc_dai *codec_dai = runtime->codec_dai; struct cht_mc_private *ctx = snd_soc_card_get_drvdata(runtime->card); + struct snd_soc_jack *btn_jack; /* Select clk_i2s1_asrc as ASRC clock source */ rt5645_sel_asrc_clk_src(codec, @@ -214,7 +216,26 @@ static int cht_codec_init(struct snd_soc_pcm_runtime *runtime) return ret; } - rt5645_set_jack_detect(codec, &ctx->hp_jack, &ctx->mic_jack, NULL); + if (ctx->acpi_card->codec_type == CODEC_TYPE_RT5650) { + + ret = snd_soc_card_jack_new(runtime->card, "Button Jack", + SND_JACK_BTN_0 | + SND_JACK_BTN_1 | + SND_JACK_BTN_2 | + SND_JACK_BTN_3, &ctx->btn_jack, + NULL, 0); + if (ret) { + dev_err(runtime->dev, + "Btn jack creation failed %d\n", ret); + return ret; + } + + btn_jack = &ctx->btn_jack; + } else { + btn_jack = NULL; + } + + rt5645_set_jack_detect(codec, &ctx->hp_jack, &ctx->mic_jack, btn_jack); return ret; } -- 1.7.9.5

5 12

[alsa-devel] [PATCH] ASoC: tas571x: Eliminate redundant dev->of_node NULL check
by Kevin Cernekee 06 May '15

06 May '15

of_match_device() checks if dev->of_node is NULL, so we don't need to do it again in the probe function. Signed-off-by: Kevin Cernekee <cernekee(a)chromium.org> --- This applies to the broonie/sound.git for-next branch. sound/soc/codecs/tas571x.c | 13 ++++--------- 1 file changed, 4 insertions(+), 9 deletions(-) diff --git a/sound/soc/codecs/tas571x.c b/sound/soc/codecs/tas571x.c index b187ea53a7f9..85bcc374c8e8 100644 --- a/sound/soc/codecs/tas571x.c +++ b/sound/soc/codecs/tas571x.c @@ -377,6 +377,7 @@ static int tas571x_i2c_probe(struct i2c_client *client, { struct tas571x_private *priv; struct device *dev = &client->dev; + const struct of_device_id *of_id; int i, ret; priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL); @@ -384,18 +385,12 @@ static int tas571x_i2c_probe(struct i2c_client *client, return -ENOMEM; i2c_set_clientdata(client, priv); - if (dev->of_node) { - const struct of_device_id *of_id; - - of_id = of_match_device(tas571x_of_match, dev); - if (of_id) - priv->chip = of_id->data; - } - - if (!priv->chip) { + of_id = of_match_device(tas571x_of_match, dev); + if (!of_id) { dev_err(dev, "Unknown device type\n"); return -EINVAL; } + priv->chip = of_id->data; priv->mclk = devm_clk_get(dev, "mclk"); if (IS_ERR(priv->mclk) && PTR_ERR(priv->mclk) != -ENOENT) { -- 2.2.0.rc0.207.ga3a616c

2 1

[alsa-devel] [PATCH] ALSA: hda - Add headset mic quirk for Dell Inspiron 5548
by David Henningsson 06 May '15

06 May '15

This enables the headset microphone on Dell Inspiron 5548, or at least some variants of it. Cc: stable(a)kernel.org BugLink: https://bugs.launchpad.net/bugs/1452175 Signed-off-by: David Henningsson <david.henningsson(a)canonical.com> --- sound/pci/hda/patch_realtek.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c index 06199e4..c5413e9 100644 --- a/sound/pci/hda/patch_realtek.c +++ b/sound/pci/hda/patch_realtek.c @@ -5337,6 +5337,13 @@ static const struct snd_hda_pin_quirk alc269_pin_fixup_tbl[] = { {0x17, 0x40000000}, {0x1d, 0x40700001}, {0x21, 0x02211050}), + SND_HDA_PIN_QUIRK(0x10ec0255, 0x1028, "Dell Inspiron 5548", ALC255_FIXUP_DELL1_MIC_NO_PRESENCE, + ALC255_STANDARD_PINS, + {0x12, 0x90a60180}, + {0x14, 0x90170130}, + {0x17, 0x40000000}, + {0x1d, 0x40700001}, + {0x21, 0x02211040}), SND_HDA_PIN_QUIRK(0x10ec0256, 0x1028, "Dell", ALC255_FIXUP_DELL1_MIC_NO_PRESENCE, ALC256_STANDARD_PINS, {0x13, 0x40000000}), -- 1.9.1

1 0

[alsa-devel] [PATCH v11 0/3] ASoC: tda998x: add a codec to the HDMI transmitter
by Jean-Francois Moine 06 May '15

06 May '15

Based on 4.1-rc1 v11: - reduce the patch series to adding the tda998x codec only v10: - add the generic dt-card - define the audio ports from a DT graph of ports (Russell King) - reuse HDMI constants (Andrew Jackson - Jyri Sarha) - alloc rate_constraints in codec (Jyri Sarha) - fix bad number of channels (Jyri Sarha) - correct codec generation from config (Russell King - Jyri Sarha) - no module init/exit (Russell King) v9: - back to a TDA998x specific CODEC - more comments - change magic values to constants v8: - change some comments about the patches v7: - remove the change of the K predivider (Jyri Sarha) - add S24_3LE and S32_LE as possible audio formats (Jyri Sarha) - don't move the struct priv2 definition and use the slave encoder private data as the device private data (Russell King) - remove the useless request_module (Russell King/Mark Brown) - don't lock the HDMI module (Russell King) - use platform_device_unregister to remove the codec (Russell King) v6: - extend the HDMI CODEC instead of using a specific CODEC v5: - use the TDA998x private data instead of a specific area for the CODEC interface - the CODEC is TDA998x specific (Mark Brown) v4: - remove all the TDA998x specific stuff from the CODEC - move the EDID scan from the CODEC to the TDA998x - move the CODEC to sound/soc (Mark Brown) - update the audio_sample_rate from the EDID (Andrew Jackson) v3: fix bad rate (Andrew Jackson) v2: check double stream start (Mark Brown) Jean-Francois Moine (3): drm/i2c: tda998x: Add support of a DT graph of ports drm/i2c: tda998x: Change drvdata for audio extension ASoC: tda998x: add a codec to the HDMI transmitter .../devicetree/bindings/drm/i2c/tda998x.txt | 51 +++++ drivers/gpu/drm/i2c/tda998x_drv.c | 220 +++++++++++++++++++-- include/sound/tda998x.h | 30 +++ sound/soc/codecs/Kconfig | 5 + sound/soc/codecs/Makefile | 2 + sound/soc/codecs/tda998x.c | 174 ++++++++++++++++ 6 files changed, 471 insertions(+), 11 deletions(-) create mode 100644 include/sound/tda998x.h create mode 100644 sound/soc/codecs/tda998x.c -- 2.1.4

2 4

Re: [alsa-devel] [PATCH 2/2] ASoC: zx: Add zx296702 SPDIF support
by Mark Brown 06 May '15

06 May '15

On Tue, May 05, 2015 at 09:43:56AM +0800, Jun Nie wrote: > 2015-05-04 21:54 GMT+08:00 Mark Brown <broonie(a)kernel.org>: > > So this special HDMI S/PDIF controller is directly integrated with the > > HDMI IP in the SoC and not usable as a generic S/PDIF controller? That > > seems to mirror system designs which have an external HDMI encoder which > > use S/PDIF or I2S to connect the audio portion to an external device. > The first SPDIF controller on ZTE SOC is dedicated for HDMI and the > 2nd one is for external output only via physical pad. The two > controller IPs are identical, also independent with each other and > HDMI in register address region. OK, so this does sound like the software should like one of the systems with an external HDMI encoder and the HDMI handled separately rather than in this driver anyway. > > I'd suggest for future versions reorganizing things so that you add the > > S/PDIF driver with only S/PDIF support and then have a separate patch > > that layers on the HDMI support. > Reasonable suggestion. Then I can have more time to think about HDMI > part. More comments is welcome if any. This sounds like the software should look like a TDA998x (which is having patches posted still) so just have the S/PDIF controllers as pure S/PDIF controllers and then a separate driver for the HDMI part that it's hooked up to which deals with the audio configuration for the HDMI side.

1 0

Re: [alsa-devel] Front speakers doesn't work in multichannel output, regression in ALC888
by Raymond Yau 05 May '15

05 May '15

> > > seem internal subwoofer only use one channel and don't have any stereo to > > mono downmix according to your patch > > > > It is not easy to assign different name to internal 4.1 and external 5.1 > > speaker when alc888 only has five DAC > > > > Some playback volume control must be shared > > If you know what's missing, you could send a few lines of code and I will test > it, otherwise I'll have to experiment on my own. https://git.kernel.org/cgit/linux/kernel/git/tiwai/sound.git/patch/sound/pc… c3e837bbcc03e39991da5dd1f791c0 6cde9f7a45 As your patch indicate internal subwoofer use external center speaker channel and your codec does not support L/R swap You may need to reserve Audio mixer 0x26 for internal subwoofer playback volume by restrict the connection of the internal rear speaker excluding 0x26 so that last DAC can be assigned to the internal subwoofer similar to alc889_fixup_dac_route void alc888_fixup_dac_route(struct hda_codec *codec, const struct alc_fixup *fix, int action) { if (action == ALC_FIXUP_ACT_PRE_PROBE) { hda_nid_t conn1[4] = { 0x0c, 0x0d, 0x0e, 0x0f}; snd_hda_override_conn_list(codec, 0x17, 4, conn1); } else if (action == ALC_FIXUP_ACT_PROBE) { conn[5] = { 0x0c, 0x0d, 0x0e, 0x0f, 0x26 }; snd_hda_override_conn_list(codec, 0x17, 5, conn); } } > https://git.kernel.org/cgit/linux/kernel/git/tiwai/sound.git/patch/sound/pc… c3e837bbcc03e39991da5dd1f791c0 6cde9f7a45 > > > > Do you mean internal subwoofer has low pass filter > > I don't know. How to check it? > > > > what do you mean when you say 4.1 worked fine ? > > External 5.1 speakers working as 4.1 speakers because such profile was set. > > > > The channel map of internal 4.1 speaker are different from external 5.1 > > speaker > > Recently I also made such conclusion. > https://git.kernel.org/cgit/linux/kernel/git/tiwai/sound.git/commit/?id=2d3… Seem 4.1 is not defined in snd_pcm_std_chmap and you need to define and add your 4.1 chmap similar to 2.1 https://git.kernel.org/cgit/linux/kernel/git/tiwai/sound.git/commit/?id=ee8…

1 0

[alsa-devel] [RFC PATCH] ASoC: wm8741: Add differential mono mode support
by Sergej Sawazki 05 May '15

05 May '15

The WM8741 DAC supports several differential output modes (stereo, stereo reversed, mono left, mono right). Add platform data and DT bindings to configure it. Signed-off-by: Sergej Sawazki <ce3a(a)gmx.de> --- Documentation/devicetree/bindings/sound/wm8741.txt | 11 ++ sound/soc/codecs/wm8741.c | 129 ++++++++++++++++++--- sound/soc/codecs/wm8741.h | 10 ++ 3 files changed, 137 insertions(+), 13 deletions(-) diff --git a/Documentation/devicetree/bindings/sound/wm8741.txt b/Documentation/devicetree/bindings/sound/wm8741.txt index 74bda58..a133154 100644 --- a/Documentation/devicetree/bindings/sound/wm8741.txt +++ b/Documentation/devicetree/bindings/sound/wm8741.txt @@ -10,9 +10,20 @@ Required properties: - reg : the I2C address of the device for I2C, the chip select number for SPI. +Optional properties: + + - diff-mode: Differential output mode configuration. Default value for field + DIFF in register R8 (MODE_CONTROL_2). If absent, the default is 0, shall be: + 0 = stereo + 1 = mono left + 2 = stereo reversed + 3 = mono right + Example: codec: wm8741@1a { compatible = "wlf,wm8741"; reg = <0x1a>; + + diff-mode = <3>; }; diff --git a/sound/soc/codecs/wm8741.c b/sound/soc/codecs/wm8741.c index 9e71c76..9b777a6 100644 --- a/sound/soc/codecs/wm8741.c +++ b/sound/soc/codecs/wm8741.c @@ -41,6 +41,7 @@ static const char *wm8741_supply_names[WM8741_NUM_SUPPLIES] = { /* codec private data */ struct wm8741_priv { + struct wm8741_platform_data pdata; struct regmap *regmap; struct regulator_bulk_data supplies[WM8741_NUM_SUPPLIES]; unsigned int sysclk; @@ -87,13 +88,27 @@ static int wm8741_reset(struct snd_soc_codec *codec) static const DECLARE_TLV_DB_SCALE(dac_tlv_fine, -12700, 13, 0); static const DECLARE_TLV_DB_SCALE(dac_tlv, -12700, 400, 0); -static const struct snd_kcontrol_new wm8741_snd_controls[] = { +static const struct snd_kcontrol_new wm8741_snd_controls_stereo[] = { SOC_DOUBLE_R_TLV("Fine Playback Volume", WM8741_DACLLSB_ATTENUATION, WM8741_DACRLSB_ATTENUATION, 1, 255, 1, dac_tlv_fine), SOC_DOUBLE_R_TLV("Playback Volume", WM8741_DACLMSB_ATTENUATION, WM8741_DACRMSB_ATTENUATION, 0, 511, 1, dac_tlv), }; +static const struct snd_kcontrol_new wm8741_snd_controls_mono_left[] = { +SOC_SINGLE_TLV("Fine Playback Volume Left", WM8741_DACLLSB_ATTENUATION, + 1, 255, 1, dac_tlv_fine), +SOC_SINGLE_TLV("Playback Volume Left", WM8741_DACLMSB_ATTENUATION, + 0, 511, 1, dac_tlv), +}; + +static const struct snd_kcontrol_new wm8741_snd_controls_mono_right[] = { + SOC_SINGLE_TLV("Fine Playback Volume Right", WM8741_DACRLSB_ATTENUATION, + 1, 255, 1, dac_tlv_fine), + SOC_SINGLE_TLV("Playback Volume Right", WM8741_DACRMSB_ATTENUATION, + 0, 511, 1, dac_tlv), +}; + static const struct snd_soc_dapm_widget wm8741_dapm_widgets[] = { SND_SOC_DAPM_DAC("DACL", "Playback", SND_SOC_NOPM, 0, 0), SND_SOC_DAPM_DAC("DACR", "Playback", SND_SOC_NOPM, 0, 0), @@ -398,7 +413,7 @@ static struct snd_soc_dai_driver wm8741_dai = { .name = "wm8741", .playback = { .stream_name = "Playback", - .channels_min = 2, /* Mono modes not yet supported */ + .channels_min = 1, .channels_max = 2, .rates = WM8741_RATES, .formats = WM8741_FORMATS, @@ -416,6 +431,65 @@ static int wm8741_resume(struct snd_soc_codec *codec) #define wm8741_resume NULL #endif +static int wm8741_configure(struct snd_soc_codec *codec) +{ + struct wm8741_priv *wm8741 = snd_soc_codec_get_drvdata(codec); + + /* Configure differential mode */ + switch (wm8741->pdata.diff_mode) { + case WM8741_DIFF_MODE_STEREO: + case WM8741_DIFF_MODE_STEREO_REVERSED: + case WM8741_DIFF_MODE_MONO_LEFT: + case WM8741_DIFF_MODE_MONO_RIGHT: + snd_soc_update_bits(codec, WM8741_MODE_CONTROL_2, + WM8741_DIFF_MASK, + wm8741->pdata.diff_mode << WM8741_DIFF_SHIFT); + break; + default: + return -EINVAL; + } + + /* Change some default settings - latch VU */ + snd_soc_update_bits(codec, WM8741_DACLLSB_ATTENUATION, + WM8741_UPDATELL, WM8741_UPDATELL); + snd_soc_update_bits(codec, WM8741_DACLMSB_ATTENUATION, + WM8741_UPDATELM, WM8741_UPDATELM); + snd_soc_update_bits(codec, WM8741_DACRLSB_ATTENUATION, + WM8741_UPDATERL, WM8741_UPDATERL); + snd_soc_update_bits(codec, WM8741_DACRMSB_ATTENUATION, + WM8741_UPDATERM, WM8741_UPDATERM); + + return 0; +} + +static int wm8741_add_controls(struct snd_soc_codec *codec) +{ + struct wm8741_priv *wm8741 = snd_soc_codec_get_drvdata(codec); + + switch (wm8741->pdata.diff_mode) { + case WM8741_DIFF_MODE_STEREO: + case WM8741_DIFF_MODE_STEREO_REVERSED: + snd_soc_add_codec_controls(codec, + wm8741_snd_controls_stereo, + ARRAY_SIZE(wm8741_snd_controls_stereo)); + break; + case WM8741_DIFF_MODE_MONO_LEFT: + snd_soc_add_codec_controls(codec, + wm8741_snd_controls_mono_left, + ARRAY_SIZE(wm8741_snd_controls_mono_left)); + break; + case WM8741_DIFF_MODE_MONO_RIGHT: + snd_soc_add_codec_controls(codec, + wm8741_snd_controls_mono_right, + ARRAY_SIZE(wm8741_snd_controls_mono_right)); + break; + default: + return -EINVAL; + } + + return 0; +} + static int wm8741_probe(struct snd_soc_codec *codec) { struct wm8741_priv *wm8741 = snd_soc_codec_get_drvdata(codec); @@ -434,15 +508,17 @@ static int wm8741_probe(struct snd_soc_codec *codec) goto err_enable; } - /* Change some default settings - latch VU */ - snd_soc_update_bits(codec, WM8741_DACLLSB_ATTENUATION, - WM8741_UPDATELL, WM8741_UPDATELL); - snd_soc_update_bits(codec, WM8741_DACLMSB_ATTENUATION, - WM8741_UPDATELM, WM8741_UPDATELM); - snd_soc_update_bits(codec, WM8741_DACRLSB_ATTENUATION, - WM8741_UPDATERL, WM8741_UPDATERL); - snd_soc_update_bits(codec, WM8741_DACRMSB_ATTENUATION, - WM8741_UPDATERM, WM8741_UPDATERM); + ret = wm8741_configure(codec); + if (ret < 0) { + dev_err(codec->dev, "Failed to change default settings\n"); + goto err_enable; + } + + ret = wm8741_add_controls(codec); + if (ret < 0) { + dev_err(codec->dev, "Failed to add controls\n"); + goto err_enable; + } dev_dbg(codec->dev, "Successful registration\n"); return ret; @@ -467,8 +543,6 @@ static struct snd_soc_codec_driver soc_codec_dev_wm8741 = { .remove = wm8741_remove, .resume = wm8741_resume, - .controls = wm8741_snd_controls, - .num_controls = ARRAY_SIZE(wm8741_snd_controls), .dapm_widgets = wm8741_dapm_widgets, .num_dapm_widgets = ARRAY_SIZE(wm8741_dapm_widgets), .dapm_routes = wm8741_dapm_routes, @@ -493,6 +567,23 @@ static const struct regmap_config wm8741_regmap = { .readable_reg = wm8741_readable, }; +static int wm8741_set_pdata(struct device *dev, struct wm8741_priv *wm8741) +{ + const struct wm8741_platform_data *pdata = dev_get_platdata(dev); + u32 diff_mode; + + if (dev->of_node) { + if (of_property_read_u32(dev->of_node, "diff-mode", &diff_mode) + >= 0) + wm8741->pdata.diff_mode = diff_mode; + } else { + if (pdata != NULL) + memcpy(&wm8741->pdata, pdata, sizeof(wm8741->pdata)); + } + + return 0; +} + #if IS_ENABLED(CONFIG_I2C) static int wm8741_i2c_probe(struct i2c_client *i2c, const struct i2c_device_id *id) @@ -522,6 +613,12 @@ static int wm8741_i2c_probe(struct i2c_client *i2c, return ret; } + wm8741_set_pdata(&i2c->dev, wm8741); + if (ret != 0) { + dev_err(&i2c->dev, "Failed to set pdata: %d\n", ret); + return ret; + } + i2c_set_clientdata(i2c, wm8741); ret = snd_soc_register_codec(&i2c->dev, @@ -582,6 +679,12 @@ static int wm8741_spi_probe(struct spi_device *spi) return ret; } + wm8741_set_pdata(&spi->dev, wm8741); + if (ret != 0) { + dev_err(&spi->dev, "Failed to set pdata: %d\n", ret); + return ret; + } + spi_set_drvdata(spi, wm8741); ret = snd_soc_register_codec(&spi->dev, diff --git a/sound/soc/codecs/wm8741.h b/sound/soc/codecs/wm8741.h index 56c1b1d..c8835f6 100644 --- a/sound/soc/codecs/wm8741.h +++ b/sound/soc/codecs/wm8741.h @@ -194,6 +194,12 @@ #define WM8741_DITHER_SHIFT 0 /* DITHER - [1:0] */ #define WM8741_DITHER_WIDTH 2 /* DITHER - [1:0] */ +/* DIFF field values */ +#define WM8741_DIFF_MODE_STEREO 0 /* stereo normal */ +#define WM8741_DIFF_MODE_STEREO_REVERSED 2 /* stereo reversed */ +#define WM8741_DIFF_MODE_MONO_LEFT 1 /* mono left */ +#define WM8741_DIFF_MODE_MONO_RIGHT 3 /* mono right */ + /* * R32 (0x20) - ADDITONAL_CONTROL_1 */ @@ -208,4 +214,8 @@ #define WM8741_SYSCLK 0 +struct wm8741_platform_data { + u32 diff_mode; /* Differential Output Mode */ +}; + #endif -- 1.9.1

3 7

[alsa-devel] [PATCH] ALSA: hda/tegra - Fix oops
by Thierry Reding 05 May '15

05 May '15

From: Thierry Reding <treding(a)nvidia.com> Commit a41d122449be ("ALSA: hda - Embed bus into controller object") introduced a regression in the Tegra HDA driver that causes the following oops during boot: [ 2.333458] Unable to handle kernel NULL pointer dereference at virtual address 000004c4 [ 2.341537] pgd = c0004000 [ 2.344312] [000004c4] *pgd=00000000 [ 2.347898] Internal error: Oops: 5 [#1] PREEMPT SMP ARM [ 2.353200] Modules linked in: [ 2.356264] CPU: 0 PID: 1 Comm: swapper/0 Tainted: G W 4.1.0-rc2-next-20150505-00344-g8577890defbf #79 [ 2.366682] Hardware name: NVIDIA Tegra SoC (Flattened Device Tree) [ 2.372939] task: ee0d8b40 ti: ee0da000 task.ti: ee0da000 [ 2.378336] PC is at azx_bus_init+0x18/0xf4 [ 2.382516] LR is at hda_tegra_probe+0x6c/0x478 [ 2.387043] pc : [<c06156c4>] lr : [<c061cf00>] psr: 60000113 [ 2.387043] sp : ee0dbe38 ip : 00000000 fp : 00000000 [ 2.398501] r10: ed874c00 r9 : 000000fd r8 : 00000000 [ 2.403717] r7 : ed874c10 r6 : 00000000 r5 : 00000000 r4 : ed016810 [ 2.410232] r3 : c08a2ad4 r2 : c08a1ea0 r1 : 00000000 r0 : ed016810 [ 2.416750] Flags: nZCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment kernel [ 2.424046] Control: 10c5387d Table: 8000406a DAC: 00000015 [ 2.429783] Process swapper/0 (pid: 1, stack limit = 0xee0da210) [ 2.435778] Stack: (0xee0dbe38 to 0xee0dc000) [ 2.440129] be20: 00000000 ed016810 [ 2.448297] be40: 00000000 c061cf00 00000000 ee0dbe5c ed8735d0 c0a7bc48 ed02fd50 ed016000 [ 2.456462] be60: c1250164 ed874c10 c0c66bf8 fffffdfb 00000000 000000fd c0b8dc98 c046664c [ 2.464628] be80: c0466608 c1250164 ed874c10 00000000 c0c66bf8 c0464eb4 ed874c10 c0c66bf8 [ 2.472793] bea0: ed874c44 c0c43458 00000000 c04650d0 00000000 c0c66bf8 c046503c c04633b4 [ 2.480959] bec0: ee11bea4 ed85f390 c0c66bf8 ed017ac0 00000000 c0464634 c0ab2b7c c0c66bf8 [ 2.489125] bee0: c0bfde20 c0c66bf8 c0bfde20 ed01ce40 c0b7b414 c04656e8 c04665b0 c0bfde20 [ 2.497291] bf00: c0bfde20 c0009770 ee0d8b40 c0c02488 60000113 00000000 00000000 00000003 [ 2.505458] bf20: 00000000 c0c02488 60000113 00000000 c0b54598 c0b16a90 ef7fcc57 c0041228 [ 2.513624] bf40: c0a9150c ef7fcc5f 00000006 00000006 00000000 c0bf1fa8 c0bf2354 00000006 [ 2.521790] bf60: c0b8dc90 c0c7c000 c0c7c000 c0b8dc98 00000000 c0b54dd8 00000006 00000006 [ 2.529956] bf80: c0b54598 00000000 00000000 c07ff08c 00000000 00000000 00000000 00000000 [ 2.538122] bfa0: 00000000 c07ff094 00000000 c000f5a0 00000000 00000000 00000000 00000000 [ 2.546286] bfc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 [ 2.554451] bfe0: 00000000 00000000 00000000 00000000 00000013 00000000 fffff7ff c013f264 [ 2.562624] [<c06156c4>] (azx_bus_init) from [<c061cf00>] (hda_tegra_probe+0x6c/0x478) [ 2.570535] [<c061cf00>] (hda_tegra_probe) from [<c046664c>] (platform_drv_probe+0x44/0xa4) [ 2.578879] [<c046664c>] (platform_drv_probe) from [<c0464eb4>] (driver_probe_device+0x174/0x2b8) [ 2.587739] [<c0464eb4>] (driver_probe_device) from [<c04650d0>] (__driver_attach+0x94/0x98) [ 2.596172] [<c04650d0>] (__driver_attach) from [<c04633b4>] (bus_for_each_dev+0x6c/0xa0) [ 2.604342] [<c04633b4>] (bus_for_each_dev) from [<c0464634>] (bus_add_driver+0x148/0x1f0) [ 2.612597] [<c0464634>] (bus_add_driver) from [<c04656e8>] (driver_register+0x78/0xf8) [ 2.620593] [<c04656e8>] (driver_register) from [<c0009770>] (do_one_initcall+0x8c/0x1d4) [ 2.628765] [<c0009770>] (do_one_initcall) from [<c0b54dd8>] (kernel_init_freeable+0x144/0x1e4) [ 2.637459] [<c0b54dd8>] (kernel_init_freeable) from [<c07ff094>] (kernel_init+0x8/0xe8) [ 2.645543] [<c07ff094>] (kernel_init) from [<c000f5a0>] (ret_from_fork+0x14/0x34) This is caused by azx_bus_init() trying to dereference chip->card, which for the Tegra driver doesn't get initialized until sometime later during the call to hda_tegra_create(). Fix this by mimicking the behaviour of the Intel driver and defer HDA bus initialization until right before the call to snd_device_new(). Signed-off-by: Thierry Reding <treding(a)nvidia.com> --- sound/pci/hda/hda_tegra.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/sound/pci/hda/hda_tegra.c b/sound/pci/hda/hda_tegra.c index 801e9fb4a467..db0bb50fa5b9 100644 --- a/sound/pci/hda/hda_tegra.c +++ b/sound/pci/hda/hda_tegra.c @@ -439,6 +439,10 @@ static int hda_tegra_create(struct snd_card *card, chip->single_cmd = false; chip->snoop = true; + err = azx_bus_init(chip, NULL, &hda_tegra_io_ops); + if (err < 0) + return err; + err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops); if (err < 0) { dev_err(card->dev, "Error creating device\n"); @@ -475,10 +479,6 @@ static int hda_tegra_probe(struct platform_device *pdev) return err; } - err = azx_bus_init(chip, NULL, &hda_tegra_io_ops); - if (err < 0) - goto out_free; - err = hda_tegra_create(card, driver_flags, hda); if (err < 0) goto out_free; -- 2.3.5

2 1

Re: [alsa-devel] Add ALC298 alias name for Dell
by Takashi Iwai 05 May '15

05 May '15

At Tue, 5 May 2015 07:19:04 +0000, Kailang wrote: > > Hi Takashi, > > Dell has new platform use ALC298 codec. > ALC298 for Dell is call ALC3266. Thanks, applied. Takashi > > BR, > Kailang > [1.2 <text/html; us-ascii (quoted-printable)>] > > [2 0000-add-alc298-alias-name-for-Dell.patch <application/octet-stream (base64)>] >

1 0