The patch

ASoC: SOF: Intel: hda: fixup HDaudio topology name with DMIC number

has been applied to the asoc tree at

https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git for-5.4

All being well this means that it will be integrated into the linux-next tree (usually sometime in the next 24 hours) and sent to Linus during the next merge window (or sooner if it is a bug fix), however if problems are discovered then the patch may be dropped or reverted.

You may get further e-mails resulting from automated or manual testing and review of the tree, please engage with people reporting problems and send followup patches addressing any issues that are reported if needed.

If any updates are required or you are submitting further changes they should be sent as incremental updates against current git, existing patches will not be replaced.

Please add any relevant lists and maintainers to the CCs when replying to this mail.

Thanks, Mark

From 68b953aeb50d9206de27d6c216e301f01dfac34d Mon Sep 17 00:00:00 2001

From: Pierre-Louis Bossart pierre-louis.bossart@linux.intel.com Date: Mon, 12 Aug 2019 11:06:23 -0500 Subject: [PATCH] ASoC: SOF: Intel: hda: fixup HDaudio topology name with DMIC number

The SOF project maintains 6 topologies for HDaudio (iDisp or HDaudio+iDisp, no DMIC, 2 DMICs, 4 DMICs). The user is currently required to manually rename the topology file used in /lib/firmware/intel/sof-tplg. We can do better to avoid such renames and use logic to select the relevant file.

The NHLT information can be used to figure out which topology file should be used.

Alternatively, when NHLT is not present in ACPI tables or is possibly incorrect, a module parameter can provide that information, e.g. on Up^2 board with the test DMIC kit.

Tested on Up^2 board and Acer Swift-SF314-55

Signed-off-by: Pierre-Louis Bossart pierre-louis.bossart@linux.intel.com Link: https://lore.kernel.org/r/20190812160623.20821-1-pierre-louis.bossart@linux.... Signed-off-by: Mark Brown broonie@kernel.org --- sound/soc/sof/intel/Kconfig | 1 + sound/soc/sof/intel/hda.c | 75 +++++++++++++++++++++++++++++++------ 2 files changed, 64 insertions(+), 12 deletions(-)

diff --git a/sound/soc/sof/intel/Kconfig b/sound/soc/sof/intel/Kconfig index dd14ce92fe10..545071afbe18 100644 --- a/sound/soc/sof/intel/Kconfig +++ b/sound/soc/sof/intel/Kconfig @@ -254,6 +254,7 @@ config SND_SOC_SOF_HDA tristate select SND_HDA_EXT_CORE if SND_SOC_SOF_HDA_LINK select SND_SOC_HDAC_HDA if SND_SOC_SOF_HDA_AUDIO_CODEC + select SND_INTEL_NHLT help This option is not user-selectable but automagically handled by 'select' statements at a higher level diff --git a/sound/soc/sof/intel/hda.c b/sound/soc/sof/intel/hda.c index 28eb780494aa..c97c004afa43 100644 --- a/sound/soc/sof/intel/hda.c +++ b/sound/soc/sof/intel/hda.c @@ -19,6 +19,7 @@ #include <sound/hda_register.h>

#include <linux/module.h> +#include <sound/intel-nhlt.h> #include <sound/sof.h> #include <sound/sof/xtensa.h> #include "../ops.h" @@ -49,6 +50,12 @@ module_param_named(use_msi, hda_use_msi, bool, 0444); MODULE_PARM_DESC(use_msi, "SOF HDA use PCI MSI mode"); #endif

+#if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA) +static int hda_dmic_num = -1; +module_param_named(dmic_num, hda_dmic_num, int, 0444); +MODULE_PARM_DESC(dmic_num, "SOF HDA DMIC number"); +#endif + static const struct hda_dsp_msg_code hda_dsp_rom_msg[] = { {HDA_DSP_ROM_FW_MANIFEST_LOADED, "status: manifest loaded"}, {HDA_DSP_ROM_FW_FW_LOADED, "status: fw loaded"}, @@ -283,8 +290,26 @@ static int hda_init(struct snd_sof_dev *sdev)

#if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA)

+static int check_nhlt_dmic(struct snd_sof_dev *sdev) +{ + struct nhlt_acpi_table *nhlt; + int dmic_num; + + nhlt = intel_nhlt_init(sdev->dev); + if (nhlt) { + dmic_num = intel_nhlt_get_dmic_geo(sdev->dev, nhlt); + intel_nhlt_free(nhlt); + if (dmic_num == 2 || dmic_num == 4) + return dmic_num; + } + + return 0; +} + static const char *fixup_tplg_name(struct snd_sof_dev *sdev, - const char *sof_tplg_filename) + const char *sof_tplg_filename, + const char *idisp_str, + const char *dmic_str) { const char *tplg_filename = NULL; char *filename; @@ -298,7 +323,8 @@ static const char *fixup_tplg_name(struct snd_sof_dev *sdev, split_ext = strsep(&filename, "."); if (split_ext) { tplg_filename = devm_kasprintf(sdev->dev, GFP_KERNEL, - "%s-idisp.tplg", split_ext); + "%s%s%s.tplg", + split_ext, idisp_str, dmic_str); if (!tplg_filename) return NULL; } @@ -317,6 +343,9 @@ static int hda_init_caps(struct snd_sof_dev *sdev) struct snd_sof_pdata *pdata = sdev->pdata; struct snd_soc_acpi_mach *mach; const char *tplg_filename; + const char *idisp_str; + const char *dmic_str; + int dmic_num; int codec_num = 0; int i; #endif @@ -381,17 +410,39 @@ static int hda_init_caps(struct snd_sof_dev *sdev) dev_info(bus->dev, "using HDA machine driver %s now\n", hda_mach->drv_name);

- /* fixup topology file for HDMI only platforms */ - if (codec_num == 1) { - /* use local variable for readability */ - tplg_filename = pdata->tplg_filename; - tplg_filename = fixup_tplg_name(sdev, tplg_filename); - if (!tplg_filename) { - hda_codec_i915_exit(sdev); - return ret; - } - pdata->tplg_filename = tplg_filename; + if (codec_num == 1) + idisp_str = "-idisp"; + else + idisp_str = ""; + + /* first check NHLT for DMICs */ + dmic_num = check_nhlt_dmic(sdev); + + /* allow for module parameter override */ + if (hda_dmic_num != -1) + dmic_num = hda_dmic_num; + + switch (dmic_num) { + case 2: + dmic_str = "-2ch"; + break; + case 4: + dmic_str = "-4ch"; + break; + default: + dmic_num = 0; + dmic_str = ""; + break; + } + + tplg_filename = pdata->tplg_filename; + tplg_filename = fixup_tplg_name(sdev, tplg_filename, + idisp_str, dmic_str); + if (!tplg_filename) { + hda_codec_i915_exit(sdev); + return ret; } + pdata->tplg_filename = tplg_filename; } }