| Message ID | 20211008111902.103473-1-tanureal@opensource.cirrus.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | [RFC] sound: cs35l41: Add support for Legion 7 16ACHg6 laptop | expand |
On Fri, 08 Oct 2021 13:19:02 +0200, Lucas Tanure wrote: > > Hi, > > I would like to get some guidance about this solution to > support the 16ACHg6 laptop. > > Hardware: > - The 16ACHg6 laptop has two CS35L41 amplifiers, connected > to Realtek ALC287 by an I2S bus and by and direct I2C to the CPU. > - The ALC287 codec is connected to the CPU by an HDA bus. > - The CS35L41 has a DSP which will require firmware to be loaded. > > Architecture: > - To load the firmware for CS35L41, this solution will require > the wm_adsp library, which requires regmap, header definitions and > register tables. > - To minimize the duplication of the code, the HDA functions will > be placed inside the ASoC CS35L41 driver. > - Finally, HDA patch_realtek will access exposed functions from > ASoC CS35L41 driver to initialize the amplifiers, start and stop > streams and load firmware. Through a very quick glance, a potential problem is that this design would make the HD-audio codec driver dependent on those other ASoC ones. As the Realtek HD-audio codec driver is used by quite many other people, we'd like to reduce such dependency mess. Maybe a dynamic binding with component framework can be used? Alternatively, we may build up a stuff on top of ASoC like what SOF driver did. It'll be another lot of work, though. thanks, Takashi > Notes: > - This is a work in progress, so the code is not functional, its > only intent is to demonstrate the overall solution > - If accepted, this will be split into a couple of patches for > a new patch chain > > Signed-off-by: Lucas Tanure <tanureal@opensource.cirrus.com> > --- > drivers/acpi/scan.c | 1 + > drivers/platform/x86/i2c-multi-instantiate.c | 7 ++ > include/sound/cs35l41.h | 4 ++ > sound/pci/hda/Kconfig | 1 + > sound/pci/hda/patch_realtek.c | 21 +++++- > sound/soc/codecs/cs35l41.c | 75 ++++++++++++++++---- > 6 files changed, 95 insertions(+), 14 deletions(-) > > diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c > index 5b54c80b9d32..c1c27a408420 100644 > --- a/drivers/acpi/scan.c > +++ b/drivers/acpi/scan.c > @@ -1703,6 +1703,7 @@ static bool acpi_device_enumeration_by_parent(struct acpi_device *device) > {"BSG2150", }, > {"INT33FE", }, > {"INT3515", }, > + {"CLSA0100", }, > {} > }; > > diff --git a/drivers/platform/x86/i2c-multi-instantiate.c b/drivers/platform/x86/i2c-multi-instantiate.c > index a50153ecd560..b61f7e30d42a 100644 > --- a/drivers/platform/x86/i2c-multi-instantiate.c > +++ b/drivers/platform/x86/i2c-multi-instantiate.c > @@ -139,6 +139,12 @@ static const struct i2c_inst_data bsg2150_data[] = { > {} > }; > > +static const struct i2c_inst_data clsa0100_data[] = { > + { "cs35l41", IRQ_RESOURCE_GPIO, 0 }, > + { "cs35l41", IRQ_RESOURCE_GPIO, 0 }, > + {} > +}; > + > /* > * Device with _HID INT3515 (TI PD controllers) has some unresolved interrupt > * issues. The most common problem seen is interrupt flood. > @@ -170,6 +176,7 @@ static const struct i2c_inst_data bsg2150_data[] = { > static const struct acpi_device_id i2c_multi_inst_acpi_ids[] = { > { "BSG1160", (unsigned long)bsg1160_data }, > { "BSG2150", (unsigned long)bsg2150_data }, > + { "CLSA0100", (unsigned long)clsa0100_data }, > { } > }; > MODULE_DEVICE_TABLE(acpi, i2c_multi_inst_acpi_ids); > diff --git a/include/sound/cs35l41.h b/include/sound/cs35l41.h > index 1f1e3c6c9be1..4d665b7dbfdf 100644 > --- a/include/sound/cs35l41.h > +++ b/include/sound/cs35l41.h > @@ -23,6 +23,8 @@ struct cs35l41_irq_cfg { > }; > > struct cs35l41_platform_data { > + bool no_bst; > + bool hda; > int bst_ind; > int bst_ipk; > int bst_cap; > @@ -31,4 +33,6 @@ struct cs35l41_platform_data { > struct cs35l41_irq_cfg irq_config2; > }; > > +void cs35l41_hda_init(void); > + > #endif /* __CS35L41_H */ > diff --git a/sound/pci/hda/Kconfig b/sound/pci/hda/Kconfig > index ab9d2746e804..37202466f033 100644 > --- a/sound/pci/hda/Kconfig > +++ b/sound/pci/hda/Kconfig > @@ -95,6 +95,7 @@ config SND_HDA_CODEC_REALTEK > tristate "Build Realtek HD-audio codec support" > select SND_HDA_GENERIC > select SND_HDA_GENERIC_LEDS > + select SND_SOC_CS35L41_I2C > help > Say Y or M here to include Realtek HD-audio codec support in > snd-hda-intel driver, such as ALC880. > diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c > index 4407f7da57c4..2a0ac9a1b613 100644 > --- a/sound/pci/hda/patch_realtek.c > +++ b/sound/pci/hda/patch_realtek.c > @@ -21,6 +21,7 @@ > #include <sound/core.h> > #include <sound/jack.h> > #include <sound/hda_codec.h> > +#include <sound/cs35l41.h> > #include "hda_local.h" > #include "hda_auto_parser.h" > #include "hda_jack.h" > @@ -6443,6 +6444,18 @@ static void alc287_fixup_legion_15imhg05_speakers(struct hda_codec *codec, > } > } > > +static void alc287_fixup_lenovo_y760(struct hda_codec *cdc, const struct hda_fixup *fix, int action) > +{ > + if (action == HDA_FIXUP_ACT_PROBE) { > + codec_info(cdc, "HDA_FIXUP_ACT_PROBE\n"); > + cs35l41_hda_init(); > + } else if (action == HDA_FIXUP_ACT_INIT) { > + codec_info(cdc, "HDA_FIXUP_ACT_INIT\n"); > + } else if (action == HDA_FIXUP_ACT_FREE) { > + codec_info(cdc, "HDA_FIXUP_ACT_FREE\n"); > + } > +} > + > /* for alc295_fixup_hp_top_speakers */ > #include "hp_x360_helper.c" > > @@ -6663,7 +6676,8 @@ enum { > ALC287_FIXUP_LEGION_15IMHG05_SPEAKERS, > ALC287_FIXUP_LEGION_15IMHG05_AUTOMUTE, > ALC287_FIXUP_YOGA7_14ITL_SPEAKERS, > - ALC287_FIXUP_13S_GEN2_SPEAKERS > + ALC287_FIXUP_13S_GEN2_SPEAKERS, > + ALC287_FIXUP_LENOVO_Y760 > }; > > static const struct hda_fixup alc269_fixups[] = { > @@ -8361,6 +8375,10 @@ static const struct hda_fixup alc269_fixups[] = { > .chained = true, > .chain_id = ALC269_FIXUP_HEADSET_MODE, > }, > + [ALC287_FIXUP_LENOVO_Y760] = { > + .type = HDA_FIXUP_FUNC, > + .v.func = alc287_fixup_lenovo_y760, > + }, > }; > > static const struct snd_pci_quirk alc269_fixup_tbl[] = { > @@ -8755,6 +8773,7 @@ static const struct snd_pci_quirk alc269_fixup_tbl[] = { > SND_PCI_QUIRK(0x17aa, 0x3818, "Lenovo C940", ALC298_FIXUP_LENOVO_SPK_VOLUME), > SND_PCI_QUIRK(0x17aa, 0x3827, "Ideapad S740", ALC285_FIXUP_IDEAPAD_S740_COEF), > SND_PCI_QUIRK(0x17aa, 0x3843, "Yoga 9i", ALC287_FIXUP_IDEAPAD_BASS_SPK_AMP), > + SND_PCI_QUIRK(0x17aa, 0x3847, "Legion Y760", ALC287_FIXUP_LENOVO_Y760), > SND_PCI_QUIRK(0x17aa, 0x3813, "Legion 7i 15IMHG05", ALC287_FIXUP_LEGION_15IMHG05_SPEAKERS), > SND_PCI_QUIRK(0x17aa, 0x3852, "Lenovo Yoga 7 14ITL5", ALC287_FIXUP_YOGA7_14ITL_SPEAKERS), > SND_PCI_QUIRK(0x17aa, 0x3853, "Lenovo Yoga 7 15ITL5", ALC287_FIXUP_YOGA7_14ITL_SPEAKERS), > diff --git a/sound/soc/codecs/cs35l41.c b/sound/soc/codecs/cs35l41.c > index b16eb6610c0e..f643ed1b48c0 100644 > --- a/sound/soc/codecs/cs35l41.c > +++ b/sound/soc/codecs/cs35l41.c > @@ -21,9 +21,17 @@ > #include <sound/soc.h> > #include <sound/soc-dapm.h> > #include <sound/tlv.h> > +#include <linux/acpi.h> > > #include "cs35l41.h" > > +static struct list_head *cs35l41_hda_lst; > + > +struct cs35l41_hda_node { > + struct list_head node; > + struct cs35l41_private *cs35l41; > +}; > + > static const char * const cs35l41_supplies[CS35L41_NUM_SUPPLIES] = { > "VA", > "VP", > @@ -1039,9 +1047,7 @@ static int cs35l41_set_pdata(struct cs35l41_private *cs35l41) > { > int ret; > > - /* Set Platform Data */ > - /* Required */ > - if (cs35l41->pdata.bst_ipk && > + if (!cs35l41->pdata.no_bst && cs35l41->pdata.bst_ipk && > cs35l41->pdata.bst_ind && cs35l41->pdata.bst_cap) { > ret = cs35l41_boost_config(cs35l41, cs35l41->pdata.bst_ind, > cs35l41->pdata.bst_cap, > @@ -1051,8 +1057,7 @@ static int cs35l41_set_pdata(struct cs35l41_private *cs35l41) > return ret; > } > } else { > - dev_err(cs35l41->dev, "Incomplete Boost component DT config\n"); > - return -EINVAL; > + dev_info(cs35l41->dev, "Boost disabled\n"); > } > > /* Optional */ > @@ -1148,9 +1153,31 @@ static int cs35l41_handle_pdata(struct device *dev, > { > struct cs35l41_irq_cfg *irq_gpio1_config = &pdata->irq_config1; > struct cs35l41_irq_cfg *irq_gpio2_config = &pdata->irq_config2; > + struct acpi_device *adev; > + struct device *phys_dev; > unsigned int val; > int ret; > > + if (memcmp(dev_name(cs35l41->dev), "i2c-CLSA0100", 12) == 0) { > + pdata->no_bst = true; > + pdata->hda = true; > + adev = acpi_dev_get_first_match_dev("CLSA0100", "1", -1); > + if (!adev) { > + dev_err(dev, "Failed to find an ACPI device\n"); > + return -ENODEV; > + } > + > + phys_dev = get_device(acpi_get_first_physical_node(adev)); > + acpi_dev_put(adev); > + > + if (!phys_dev) { > + dev_err(dev, "Failed to find a physical device\n"); > + return -ENODEV; > + } > + cs35l41->reset_gpio = gpiod_get_index(phys_dev, NULL, 0, GPIOD_ASIS); > + return 0; > + } > + > ret = device_property_read_u32(dev, "cirrus,boost-peak-milliamp", &val); > if (ret >= 0) > pdata->bst_ipk = val; > @@ -1237,10 +1264,22 @@ static const struct reg_sequence cs35l41_revb2_errata_patch[] = { > { 0x00000040, 0x00003333 }, > }; > > +void cs35l41_hda_init(void) > +{ > + struct list_head *p; > + int i = 0; > + > + list_for_each(p, cs35l41_hda_lst) { > + pr_info("%s %d\n", __func__, i++); > + } > +} > +EXPORT_SYMBOL_GPL(cs35l41_hda_init); > + > int cs35l41_probe(struct cs35l41_private *cs35l41, > struct cs35l41_platform_data *pdata) > { > u32 regid, reg_revid, i, mtl_revid, int_status, chipid_match; > + struct cs35l41_hda_node *cs35l41_hda; > int irq_pol = 0; > int ret; > > @@ -1269,8 +1308,8 @@ int cs35l41_probe(struct cs35l41_private *cs35l41, > } > > /* returning NULL can be an option if in stereo mode */ > - cs35l41->reset_gpio = devm_gpiod_get_optional(cs35l41->dev, "reset", > - GPIOD_OUT_LOW); > + if (!cs35l41->reset_gpio) > + cs35l41->reset_gpio = devm_gpiod_get_optional(cs35l41->dev, "reset", GPIOD_OUT_LOW); > if (IS_ERR(cs35l41->reset_gpio)) { > ret = PTR_ERR(cs35l41->reset_gpio); > cs35l41->reset_gpio = NULL; > @@ -1413,12 +1452,22 @@ int cs35l41_probe(struct cs35l41_private *cs35l41, > goto err; > } > > - ret = devm_snd_soc_register_component(cs35l41->dev, > - &soc_component_dev_cs35l41, > - cs35l41_dai, ARRAY_SIZE(cs35l41_dai)); > - if (ret < 0) { > - dev_err(cs35l41->dev, "Register codec failed: %d\n", ret); > - goto err; > + if (!cs35l41->pdata.hda) { > + ret = devm_snd_soc_register_component(cs35l41->dev, > + &soc_component_dev_cs35l41, > + cs35l41_dai, ARRAY_SIZE(cs35l41_dai)); > + if (ret < 0) { > + dev_err(cs35l41->dev, "Register codec failed: %d\n", ret); > + goto err; > + } > + } else { > + if (!cs35l41_hda_lst) { > + cs35l41_hda_lst = devm_kzalloc(cs35l41->dev, sizeof(*cs35l41_hda_lst), > + GFP_KERNEL); > + INIT_LIST_HEAD(cs35l41_hda_lst); > + } > + cs35l41_hda = devm_kzalloc(cs35l41->dev, sizeof(*cs35l41_hda), GFP_KERNEL); > + list_add(&cs35l41_hda->node, cs35l41_hda_lst); > } > > dev_info(cs35l41->dev, "Cirrus Logic CS35L41 (%x), Revision: %02X\n", > -- > 2.33.0 >
On Tue, 12 Oct 2021 22:22:07 +0200, Takashi Iwai wrote: > > On Fri, 08 Oct 2021 13:19:02 +0200, > Lucas Tanure wrote: > > > > Hi, > > > > I would like to get some guidance about this solution to > > support the 16ACHg6 laptop. > > > > Hardware: > > - The 16ACHg6 laptop has two CS35L41 amplifiers, connected > > to Realtek ALC287 by an I2S bus and by and direct I2C to the CPU. > > - The ALC287 codec is connected to the CPU by an HDA bus. > > - The CS35L41 has a DSP which will require firmware to be loaded. > > > > Architecture: > > - To load the firmware for CS35L41, this solution will require > > the wm_adsp library, which requires regmap, header definitions and > > register tables. > > - To minimize the duplication of the code, the HDA functions will > > be placed inside the ASoC CS35L41 driver. > > - Finally, HDA patch_realtek will access exposed functions from > > ASoC CS35L41 driver to initialize the amplifiers, start and stop > > streams and load firmware. > > Through a very quick glance, a potential problem is that this design > would make the HD-audio codec driver dependent on those other ASoC > ones. As the Realtek HD-audio codec driver is used by quite many > other people, we'd like to reduce such dependency mess. > > Maybe a dynamic binding with component framework can be used? > > Alternatively, we may build up a stuff on top of ASoC like what SOF > driver did. It'll be another lot of work, though. Or, yet another (and easier) alternative would be to create a new codec driver that is specific to vendor+subsystem pair. We'll need to extend the hda_device_id and its matching mechanism, and the realtek codec driver needs to exclude the matching with the given SSID explicitly. A patch below is an example. Takashi --- diff --git a/include/linux/mod_devicetable.h b/include/linux/mod_devicetable.h index ae2e75d15b21..5558f2ba2fcf 100644 --- a/include/linux/mod_devicetable.h +++ b/include/linux/mod_devicetable.h @@ -248,6 +248,7 @@ struct serio_device_id { struct hda_device_id { __u32 vendor_id; + __u32 subsystem_id; __u32 rev_id; __u8 api_version; const char *name; diff --git a/include/sound/hda_codec.h b/include/sound/hda_codec.h index 0e45963bb767..3e316a798361 100644 --- a/include/sound/hda_codec.h +++ b/include/sound/hda_codec.h @@ -79,10 +79,12 @@ typedef int (*hda_codec_patch_t)(struct hda_codec *); #define HDA_CODEC_ID_GENERIC_HDMI 0x00000101 #define HDA_CODEC_ID_GENERIC 0x00000201 -#define HDA_CODEC_REV_ENTRY(_vid, _rev, _name, _patch) \ - { .vendor_id = (_vid), .rev_id = (_rev), .name = (_name), \ - .api_version = HDA_DEV_LEGACY, \ +#define HDA_CODEC_FULL_ENTRY(_vid, _subsystem, _rev, _name, _patch) \ + { .vendor_id = (_vid), .subsystem_id = (_subsystem), .rev_id = (_rev), \ + .name = (_name), .api_version = HDA_DEV_LEGACY, \ .driver_data = (unsigned long)(_patch) } +#define HDA_CODEC_REV_ENTRY(_vid, _rev, _name, _patch) \ + HDA_CODEC_FULL_ENTRY(_vid, 0, _rev, _name, _patch) #define HDA_CODEC_ENTRY(_vid, _name, _patch) \ HDA_CODEC_REV_ENTRY(_vid, 0, _name, _patch) diff --git a/scripts/mod/devicetable-offsets.c b/scripts/mod/devicetable-offsets.c index cc3625617a0e..641b4f9bb2be 100644 --- a/scripts/mod/devicetable-offsets.c +++ b/scripts/mod/devicetable-offsets.c @@ -211,6 +211,7 @@ int main(void) DEVID(hda_device_id); DEVID_FIELD(hda_device_id, vendor_id); + DEVID_FIELD(hda_device_id, subsystem_id); DEVID_FIELD(hda_device_id, rev_id); DEVID_FIELD(hda_device_id, api_version); diff --git a/scripts/mod/file2alias.c b/scripts/mod/file2alias.c index 49aba862073e..d8faf0065c95 100644 --- a/scripts/mod/file2alias.c +++ b/scripts/mod/file2alias.c @@ -1255,15 +1255,17 @@ static int do_ulpi_entry(const char *filename, void *symval, return 1; } -/* Looks like: hdaudio:vNrNaN */ +/* Looks like: hdaudio:vNsNrNaN */ static int do_hda_entry(const char *filename, void *symval, char *alias) { DEF_FIELD(symval, hda_device_id, vendor_id); + DEF_FIELD(symval, hda_device_id, subsystem_id); DEF_FIELD(symval, hda_device_id, rev_id); DEF_FIELD(symval, hda_device_id, api_version); strcpy(alias, "hdaudio:"); ADD(alias, "v", vendor_id != 0, vendor_id); + ADD(alias, "s", subsystem_id != 0, subsystem_id); ADD(alias, "r", rev_id != 0, rev_id); ADD(alias, "a", api_version != 0, api_version); diff --git a/sound/hda/hdac_device.c b/sound/hda/hdac_device.c index 3e9e9ac804f6..662abd40ca6a 100644 --- a/sound/hda/hdac_device.c +++ b/sound/hda/hdac_device.c @@ -206,8 +206,9 @@ EXPORT_SYMBOL_GPL(snd_hdac_device_set_chip_name); */ int snd_hdac_codec_modalias(struct hdac_device *codec, char *buf, size_t size) { - return scnprintf(buf, size, "hdaudio:v%08Xr%08Xa%02X\n", - codec->vendor_id, codec->revision_id, codec->type); + return scnprintf(buf, size, "hdaudio:v%08Xs%08Xr%08Xa%02X\n", + codec->vendor_id, codec->subsystem_id, + codec->revision_id, codec->type); } EXPORT_SYMBOL_GPL(snd_hdac_codec_modalias); diff --git a/sound/pci/hda/Makefile b/sound/pci/hda/Makefile index b8fa682ce66a..9f559773bf99 100644 --- a/sound/pci/hda/Makefile +++ b/sound/pci/hda/Makefile @@ -15,6 +15,7 @@ CFLAGS_hda_intel.o := -I$(src) snd-hda-codec-generic-objs := hda_generic.o snd-hda-codec-realtek-objs := patch_realtek.o +snd-hda-codec-test-objs := patch_test.o snd-hda-codec-cmedia-objs := patch_cmedia.o snd-hda-codec-analog-objs := patch_analog.o snd-hda-codec-idt-objs := patch_sigmatel.o @@ -32,7 +33,7 @@ obj-$(CONFIG_SND_HDA) := snd-hda-codec.o # codec drivers obj-$(CONFIG_SND_HDA_GENERIC) += snd-hda-codec-generic.o -obj-$(CONFIG_SND_HDA_CODEC_REALTEK) += snd-hda-codec-realtek.o +obj-$(CONFIG_SND_HDA_CODEC_REALTEK) += snd-hda-codec-realtek.o snd-hda-codec-test.o obj-$(CONFIG_SND_HDA_CODEC_CMEDIA) += snd-hda-codec-cmedia.o obj-$(CONFIG_SND_HDA_CODEC_ANALOG) += snd-hda-codec-analog.o obj-$(CONFIG_SND_HDA_CODEC_SIGMATEL) += snd-hda-codec-idt.o diff --git a/sound/pci/hda/hda_bind.c b/sound/pci/hda/hda_bind.c index 1c8bffc3eec6..367f220ec91e 100644 --- a/sound/pci/hda/hda_bind.c +++ b/sound/pci/hda/hda_bind.c @@ -200,7 +200,7 @@ static inline bool codec_probed(struct hda_codec *codec) static void request_codec_module(struct hda_codec *codec) { #ifdef MODULE - char modalias[32]; + char modalias[64]; const char *mod = NULL; switch (codec->probe_id) { diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c index 22d27b12c4e7..993b49554457 100644 --- a/sound/pci/hda/patch_realtek.c +++ b/sound/pci/hda/patch_realtek.c @@ -16,6 +16,7 @@ #include <linux/pci.h> #include <linux/dmi.h> #include <linux/module.h> +#include <linux/export.h> #include <linux/input.h> #include <linux/leds.h> #include <sound/core.h> @@ -9510,7 +9511,7 @@ static void alc269_fill_coef(struct hda_codec *codec) /* */ -static int patch_alc269(struct hda_codec *codec) +int snd_hda_codec_realtek_alc269_probe(struct hda_codec *codec) { struct alc_spec *spec; int err; @@ -9667,6 +9668,9 @@ static int patch_alc269(struct hda_codec *codec) alc_pre_init(codec); + if (codec->fixup_id != HDA_FIXUP_ID_NOT_SET) + goto skip_pick_fixup; + snd_hda_pick_fixup(codec, alc269_fixup_models, alc269_fixup_tbl, alc269_fixups); /* FIXME: both TX300 and ROG Strix G17 have the same SSID, and @@ -9683,6 +9687,8 @@ static int patch_alc269(struct hda_codec *codec) snd_hda_pick_pin_fixup(codec, alc269_fallback_pin_fixup_tbl, alc269_fixups, false); snd_hda_pick_fixup(codec, NULL, alc269_fixup_vendor_tbl, alc269_fixups); + + skip_pick_fixup: snd_hda_apply_fixup(codec, HDA_FIXUP_ACT_PRE_PROBE); alc_auto_parse_customize_define(codec); @@ -9709,6 +9715,18 @@ static int patch_alc269(struct hda_codec *codec) alc_free(codec); return err; } +EXPORT_SYMBOL(snd_hda_codec_realtek_alc269_probe); + +static int patch_alc269(struct hda_codec *codec) +{ + if (codec->core.vendor_id == 0x10ec0298 && + codec->core.subsystem_id == 0x102806e5) { + pr_info("XXX realtek codec driver: skipping\n"); + return -ENODEV; + } + + return snd_hda_codec_realtek_alc269_probe(codec); +} /* * ALC861 diff --git a/sound/pci/hda/patch_test.c b/sound/pci/hda/patch_test.c new file mode 100644 index 000000000000..9070cc075af0 --- /dev/null +++ b/sound/pci/hda/patch_test.c @@ -0,0 +1,31 @@ +#include <linux/init.h> +#include <linux/module.h> +#include <sound/core.h> +#include <sound/hda_codec.h> + +int snd_hda_codec_realtek_alc269_probe(struct hda_codec *codec); + +// static const struct hda_fixup test_fixup = { ... }; + +static int test_probe(struct hda_codec *codec) +{ + pr_info("XXX forked driver\n"); + // codec->fixup_id = 0; + // codec->fixup_list = &test_fixup; + return snd_hda_codec_realtek_alc269_probe(codec); +} + +static const struct hda_device_id snd_hda_id_test[] = { + HDA_CODEC_FULL_ENTRY(0x10ec0298, 0x102806e5, 0, test_probe), + {} /* terminator */ +}; +MODULE_DEVICE_TABLE(hdaudio, snd_hda_id_test); + +MODULE_LICENSE("GPL"); +MODULE_DESCRIPTION("Test HD-audio codec"); + +static struct hda_codec_driver test_driver = { + .id = snd_hda_id_test, +}; + +module_hda_codec_driver(test_driver);
On 10/13/21 5:15 PM, Takashi Iwai <tiwai@suse.de> wrote: > On Tue, 12 Oct 2021 22:22:07 +0200, > Takashi Iwai wrote: > > > > On Fri, 08 Oct 2021 13:19:02 +0200, > > Lucas Tanure wrote: > >> > >> Hi, > >> > >> I would like to get some guidance about this solution to > >> support the 16ACHg6 laptop. > >> > >> Hardware: > >> - The 16ACHg6 laptop has two CS35L41 amplifiers, connected > >> to Realtek ALC287 by an I2S bus and by and direct I2C to the CPU. > >> - The ALC287 codec is connected to the CPU by an HDA bus. > >> - The CS35L41 has a DSP which will require firmware to be loaded. > >> > >> Architecture: > >> - To load the firmware for CS35L41, this solution will require > >> the wm_adsp library, which requires regmap, header definitions and > >> register tables. > >> - To minimize the duplication of the code, the HDA functions will > >> be placed inside the ASoC CS35L41 driver. > >> - Finally, HDA patch_realtek will access exposed functions from > >> ASoC CS35L41 driver to initialize the amplifiers, start and stop > >> streams and load firmware. > > > > Through a very quick glance, a potential problem is that this design > > would make the HD-audio codec driver dependent on those other ASoC > > ones. As the Realtek HD-audio codec driver is used by quite many > > other people, we'd like to reduce such dependency mess. > > > > Maybe a dynamic binding with component framework can be used? > > > > Alternatively, we may build up a stuff on top of ASoC like what SOF > > driver did. It'll be another lot of work, though. > > Or, yet another (and easier) alternative would be to create a new > codec driver that is specific to vendor+subsystem pair. We'll need to > extend the hda_device_id and its matching mechanism, and the realtek > codec driver needs to exclude the matching with the given SSID > explicitly. > > A patch below is an example. > > > Takashi > > --- > diff --git a/include/linux/mod_devicetable.h b/include/linux/mod_devicetable.h > index ae2e75d15b21..5558f2ba2fcf 100644 > --- a/include/linux/mod_devicetable.h > +++ b/include/linux/mod_devicetable.h > @@ -248,6 +248,7 @@ struct serio_device_id { > > struct hda_device_id { > __u32 vendor_id; > + __u32 subsystem_id; > __u32 rev_id; > __u8 api_version; > const char *name; > diff --git a/include/sound/hda_codec.h b/include/sound/hda_codec.h > index 0e45963bb767..3e316a798361 100644 > --- a/include/sound/hda_codec.h > +++ b/include/sound/hda_codec.h > @@ -79,10 +79,12 @@ typedef int (*hda_codec_patch_t)(struct hda_codec *); > #define HDA_CODEC_ID_GENERIC_HDMI 0x00000101 > #define HDA_CODEC_ID_GENERIC 0x00000201 > > -#define HDA_CODEC_REV_ENTRY(_vid, _rev, _name, _patch) \ > - { .vendor_id = (_vid), .rev_id = (_rev), .name = (_name), \ > - .api_version = HDA_DEV_LEGACY, \ > +#define HDA_CODEC_FULL_ENTRY(_vid, _subsystem, _rev, _name, _patch) \ > + { .vendor_id = (_vid), .subsystem_id = (_subsystem), .rev_id = (_rev), \ > + .name = (_name), .api_version = HDA_DEV_LEGACY, \ > .driver_data = (unsigned long)(_patch) } > +#define HDA_CODEC_REV_ENTRY(_vid, _rev, _name, _patch) \ > + HDA_CODEC_FULL_ENTRY(_vid, 0, _rev, _name, _patch) > #define HDA_CODEC_ENTRY(_vid, _name, _patch) \ > HDA_CODEC_REV_ENTRY(_vid, 0, _name, _patch) > > diff --git a/scripts/mod/devicetable-offsets.c b/scripts/mod/devicetable-offsets.c > index cc3625617a0e..641b4f9bb2be 100644 > --- a/scripts/mod/devicetable-offsets.c > +++ b/scripts/mod/devicetable-offsets.c > @@ -211,6 +211,7 @@ int main(void) > > DEVID(hda_device_id); > DEVID_FIELD(hda_device_id, vendor_id); > + DEVID_FIELD(hda_device_id, subsystem_id); > DEVID_FIELD(hda_device_id, rev_id); > DEVID_FIELD(hda_device_id, api_version); > > diff --git a/scripts/mod/file2alias.c b/scripts/mod/file2alias.c > index 49aba862073e..d8faf0065c95 100644 > --- a/scripts/mod/file2alias.c > +++ b/scripts/mod/file2alias.c > @@ -1255,15 +1255,17 @@ static int do_ulpi_entry(const char *filename, void *symval, > return 1; > } > > -/* Looks like: hdaudio:vNrNaN */ > +/* Looks like: hdaudio:vNsNrNaN */ > static int do_hda_entry(const char *filename, void *symval, char *alias) > { > DEF_FIELD(symval, hda_device_id, vendor_id); > + DEF_FIELD(symval, hda_device_id, subsystem_id); > DEF_FIELD(symval, hda_device_id, rev_id); > DEF_FIELD(symval, hda_device_id, api_version); > > strcpy(alias, "hdaudio:"); > ADD(alias, "v", vendor_id != 0, vendor_id); > + ADD(alias, "s", subsystem_id != 0, subsystem_id); > ADD(alias, "r", rev_id != 0, rev_id); > ADD(alias, "a", api_version != 0, api_version); > > diff --git a/sound/hda/hdac_device.c b/sound/hda/hdac_device.c > index 3e9e9ac804f6..662abd40ca6a 100644 > --- a/sound/hda/hdac_device.c > +++ b/sound/hda/hdac_device.c > @@ -206,8 +206,9 @@ EXPORT_SYMBOL_GPL(snd_hdac_device_set_chip_name); > */ > int snd_hdac_codec_modalias(struct hdac_device *codec, char *buf, size_t size) > { > - return scnprintf(buf, size, "hdaudio:v%08Xr%08Xa%02X\n", > - codec->vendor_id, codec->revision_id, codec->type); > + return scnprintf(buf, size, "hdaudio:v%08Xs%08Xr%08Xa%02X\n", > + codec->vendor_id, codec->subsystem_id, > + codec->revision_id, codec->type); > } > EXPORT_SYMBOL_GPL(snd_hdac_codec_modalias); > > diff --git a/sound/pci/hda/Makefile b/sound/pci/hda/Makefile > index b8fa682ce66a..9f559773bf99 100644 > --- a/sound/pci/hda/Makefile > +++ b/sound/pci/hda/Makefile > @@ -15,6 +15,7 @@ CFLAGS_hda_intel.o := -I$(src) > > snd-hda-codec-generic-objs := hda_generic.o > snd-hda-codec-realtek-objs := patch_realtek.o > +snd-hda-codec-test-objs := patch_test.o > snd-hda-codec-cmedia-objs := patch_cmedia.o > snd-hda-codec-analog-objs := patch_analog.o > snd-hda-codec-idt-objs := patch_sigmatel.o > @@ -32,7 +33,7 @@ obj-$(CONFIG_SND_HDA) := snd-hda-codec.o > > # codec drivers > obj-$(CONFIG_SND_HDA_GENERIC) += snd-hda-codec-generic.o > -obj-$(CONFIG_SND_HDA_CODEC_REALTEK) += snd-hda-codec-realtek.o > +obj-$(CONFIG_SND_HDA_CODEC_REALTEK) += snd-hda-codec-realtek.o snd-hda-codec-test.o > obj-$(CONFIG_SND_HDA_CODEC_CMEDIA) += snd-hda-codec-cmedia.o > obj-$(CONFIG_SND_HDA_CODEC_ANALOG) += snd-hda-codec-analog.o > obj-$(CONFIG_SND_HDA_CODEC_SIGMATEL) += snd-hda-codec-idt.o > diff --git a/sound/pci/hda/hda_bind.c b/sound/pci/hda/hda_bind.c > index 1c8bffc3eec6..367f220ec91e 100644 > --- a/sound/pci/hda/hda_bind.c > +++ b/sound/pci/hda/hda_bind.c > @@ -200,7 +200,7 @@ static inline bool codec_probed(struct hda_codec *codec) > static void request_codec_module(struct hda_codec *codec) > { > #ifdef MODULE > - char modalias[32]; > + char modalias[64]; > const char *mod = NULL; > > switch (codec->probe_id) { > diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c > index 22d27b12c4e7..993b49554457 100644 > --- a/sound/pci/hda/patch_realtek.c > +++ b/sound/pci/hda/patch_realtek.c > @@ -16,6 +16,7 @@ > #include <linux/pci.h> > #include <linux/dmi.h> > #include <linux/module.h> > +#include <linux/export.h> > #include <linux/input.h> > #include <linux/leds.h> > #include <sound/core.h> > @@ -9510,7 +9511,7 @@ static void alc269_fill_coef(struct hda_codec *codec) > > /* > */ > -static int patch_alc269(struct hda_codec *codec) > +int snd_hda_codec_realtek_alc269_probe(struct hda_codec *codec) > { > struct alc_spec *spec; > int err; > @@ -9667,6 +9668,9 @@ static int patch_alc269(struct hda_codec *codec) > > alc_pre_init(codec); > > + if (codec->fixup_id != HDA_FIXUP_ID_NOT_SET) > + goto skip_pick_fixup; > + > snd_hda_pick_fixup(codec, alc269_fixup_models, > alc269_fixup_tbl, alc269_fixups); > /* FIXME: both TX300 and ROG Strix G17 have the same SSID, and > @@ -9683,6 +9687,8 @@ static int patch_alc269(struct hda_codec *codec) > snd_hda_pick_pin_fixup(codec, alc269_fallback_pin_fixup_tbl, alc269_fixups, false); > snd_hda_pick_fixup(codec, NULL, alc269_fixup_vendor_tbl, > alc269_fixups); > + > + skip_pick_fixup: > snd_hda_apply_fixup(codec, HDA_FIXUP_ACT_PRE_PROBE); > > alc_auto_parse_customize_define(codec); > @@ -9709,6 +9715,18 @@ static int patch_alc269(struct hda_codec *codec) > alc_free(codec); > return err; > } > +EXPORT_SYMBOL(snd_hda_codec_realtek_alc269_probe); > + > +static int patch_alc269(struct hda_codec *codec) > +{ > + if (codec->core.vendor_id == 0x10ec0298 && > + codec->core.subsystem_id == 0x102806e5) { > + pr_info("XXX realtek codec driver: skipping\n"); > + return -ENODEV; > + } > + > + return snd_hda_codec_realtek_alc269_probe(codec); > +} > > /* > * ALC861 > diff --git a/sound/pci/hda/patch_test.c b/sound/pci/hda/patch_test.c > new file mode 100644 > index 000000000000..9070cc075af0 > --- /dev/null > +++ b/sound/pci/hda/patch_test.c > @@ -0,0 +1,31 @@ > +#include <linux/init.h> > +#include <linux/module.h> > +#include <sound/core.h> > +#include <sound/hda_codec.h> > + > +int snd_hda_codec_realtek_alc269_probe(struct hda_codec *codec); > + > +// static const struct hda_fixup test_fixup = { ... }; > + > +static int test_probe(struct hda_codec *codec) > +{ > + pr_info("XXX forked driver\n"); > + // codec->fixup_id = 0; > + // codec->fixup_list = &test_fixup; > + return snd_hda_codec_realtek_alc269_probe(codec); > +} > + > +static const struct hda_device_id snd_hda_id_test[] = { > + HDA_CODEC_FULL_ENTRY(0x10ec0298, 0x102806e5, 0, test_probe), > + {} /* terminator */ > +}; > +MODULE_DEVICE_TABLE(hdaudio, snd_hda_id_test); > + > +MODULE_LICENSE("GPL"); > +MODULE_DESCRIPTION("Test HD-audio codec"); > + > +static struct hda_codec_driver test_driver = { > + .id = snd_hda_id_test, > +}; > + > +module_hda_codec_driver(test_driver); > > We need the Realtek for the I2S of cs35l41, the audio goes from CPU to Realtek then cs35l41. So we don't want to skip realtek initializations and functions. I am finishing a second version that I will send soon. Thanks Lucas
diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c index 5b54c80b9d32..c1c27a408420 100644 --- a/drivers/acpi/scan.c +++ b/drivers/acpi/scan.c @@ -1703,6 +1703,7 @@ static bool acpi_device_enumeration_by_parent(struct acpi_device *device) {"BSG2150", }, {"INT33FE", }, {"INT3515", }, + {"CLSA0100", }, {} }; diff --git a/drivers/platform/x86/i2c-multi-instantiate.c b/drivers/platform/x86/i2c-multi-instantiate.c index a50153ecd560..b61f7e30d42a 100644 --- a/drivers/platform/x86/i2c-multi-instantiate.c +++ b/drivers/platform/x86/i2c-multi-instantiate.c @@ -139,6 +139,12 @@ static const struct i2c_inst_data bsg2150_data[] = { {} }; +static const struct i2c_inst_data clsa0100_data[] = { + { "cs35l41", IRQ_RESOURCE_GPIO, 0 }, + { "cs35l41", IRQ_RESOURCE_GPIO, 0 }, + {} +}; + /* * Device with _HID INT3515 (TI PD controllers) has some unresolved interrupt * issues. The most common problem seen is interrupt flood. @@ -170,6 +176,7 @@ static const struct i2c_inst_data bsg2150_data[] = { static const struct acpi_device_id i2c_multi_inst_acpi_ids[] = { { "BSG1160", (unsigned long)bsg1160_data }, { "BSG2150", (unsigned long)bsg2150_data }, + { "CLSA0100", (unsigned long)clsa0100_data }, { } }; MODULE_DEVICE_TABLE(acpi, i2c_multi_inst_acpi_ids); diff --git a/include/sound/cs35l41.h b/include/sound/cs35l41.h index 1f1e3c6c9be1..4d665b7dbfdf 100644 --- a/include/sound/cs35l41.h +++ b/include/sound/cs35l41.h @@ -23,6 +23,8 @@ struct cs35l41_irq_cfg { }; struct cs35l41_platform_data { + bool no_bst; + bool hda; int bst_ind; int bst_ipk; int bst_cap; @@ -31,4 +33,6 @@ struct cs35l41_platform_data { struct cs35l41_irq_cfg irq_config2; }; +void cs35l41_hda_init(void); + #endif /* __CS35L41_H */ diff --git a/sound/pci/hda/Kconfig b/sound/pci/hda/Kconfig index ab9d2746e804..37202466f033 100644 --- a/sound/pci/hda/Kconfig +++ b/sound/pci/hda/Kconfig @@ -95,6 +95,7 @@ config SND_HDA_CODEC_REALTEK tristate "Build Realtek HD-audio codec support" select SND_HDA_GENERIC select SND_HDA_GENERIC_LEDS + select SND_SOC_CS35L41_I2C help Say Y or M here to include Realtek HD-audio codec support in snd-hda-intel driver, such as ALC880. diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c index 4407f7da57c4..2a0ac9a1b613 100644 --- a/sound/pci/hda/patch_realtek.c +++ b/sound/pci/hda/patch_realtek.c @@ -21,6 +21,7 @@ #include <sound/core.h> #include <sound/jack.h> #include <sound/hda_codec.h> +#include <sound/cs35l41.h> #include "hda_local.h" #include "hda_auto_parser.h" #include "hda_jack.h" @@ -6443,6 +6444,18 @@ static void alc287_fixup_legion_15imhg05_speakers(struct hda_codec *codec, } } +static void alc287_fixup_lenovo_y760(struct hda_codec *cdc, const struct hda_fixup *fix, int action) +{ + if (action == HDA_FIXUP_ACT_PROBE) { + codec_info(cdc, "HDA_FIXUP_ACT_PROBE\n"); + cs35l41_hda_init(); + } else if (action == HDA_FIXUP_ACT_INIT) { + codec_info(cdc, "HDA_FIXUP_ACT_INIT\n"); + } else if (action == HDA_FIXUP_ACT_FREE) { + codec_info(cdc, "HDA_FIXUP_ACT_FREE\n"); + } +} + /* for alc295_fixup_hp_top_speakers */ #include "hp_x360_helper.c" @@ -6663,7 +6676,8 @@ enum { ALC287_FIXUP_LEGION_15IMHG05_SPEAKERS, ALC287_FIXUP_LEGION_15IMHG05_AUTOMUTE, ALC287_FIXUP_YOGA7_14ITL_SPEAKERS, - ALC287_FIXUP_13S_GEN2_SPEAKERS + ALC287_FIXUP_13S_GEN2_SPEAKERS, + ALC287_FIXUP_LENOVO_Y760 }; static const struct hda_fixup alc269_fixups[] = { @@ -8361,6 +8375,10 @@ static const struct hda_fixup alc269_fixups[] = { .chained = true, .chain_id = ALC269_FIXUP_HEADSET_MODE, }, + [ALC287_FIXUP_LENOVO_Y760] = { + .type = HDA_FIXUP_FUNC, + .v.func = alc287_fixup_lenovo_y760, + }, }; static const struct snd_pci_quirk alc269_fixup_tbl[] = { @@ -8755,6 +8773,7 @@ static const struct snd_pci_quirk alc269_fixup_tbl[] = { SND_PCI_QUIRK(0x17aa, 0x3818, "Lenovo C940", ALC298_FIXUP_LENOVO_SPK_VOLUME), SND_PCI_QUIRK(0x17aa, 0x3827, "Ideapad S740", ALC285_FIXUP_IDEAPAD_S740_COEF), SND_PCI_QUIRK(0x17aa, 0x3843, "Yoga 9i", ALC287_FIXUP_IDEAPAD_BASS_SPK_AMP), + SND_PCI_QUIRK(0x17aa, 0x3847, "Legion Y760", ALC287_FIXUP_LENOVO_Y760), SND_PCI_QUIRK(0x17aa, 0x3813, "Legion 7i 15IMHG05", ALC287_FIXUP_LEGION_15IMHG05_SPEAKERS), SND_PCI_QUIRK(0x17aa, 0x3852, "Lenovo Yoga 7 14ITL5", ALC287_FIXUP_YOGA7_14ITL_SPEAKERS), SND_PCI_QUIRK(0x17aa, 0x3853, "Lenovo Yoga 7 15ITL5", ALC287_FIXUP_YOGA7_14ITL_SPEAKERS), diff --git a/sound/soc/codecs/cs35l41.c b/sound/soc/codecs/cs35l41.c index b16eb6610c0e..f643ed1b48c0 100644 --- a/sound/soc/codecs/cs35l41.c +++ b/sound/soc/codecs/cs35l41.c @@ -21,9 +21,17 @@ #include <sound/soc.h> #include <sound/soc-dapm.h> #include <sound/tlv.h> +#include <linux/acpi.h> #include "cs35l41.h" +static struct list_head *cs35l41_hda_lst; + +struct cs35l41_hda_node { + struct list_head node; + struct cs35l41_private *cs35l41; +}; + static const char * const cs35l41_supplies[CS35L41_NUM_SUPPLIES] = { "VA", "VP", @@ -1039,9 +1047,7 @@ static int cs35l41_set_pdata(struct cs35l41_private *cs35l41) { int ret; - /* Set Platform Data */ - /* Required */ - if (cs35l41->pdata.bst_ipk && + if (!cs35l41->pdata.no_bst && cs35l41->pdata.bst_ipk && cs35l41->pdata.bst_ind && cs35l41->pdata.bst_cap) { ret = cs35l41_boost_config(cs35l41, cs35l41->pdata.bst_ind, cs35l41->pdata.bst_cap, @@ -1051,8 +1057,7 @@ static int cs35l41_set_pdata(struct cs35l41_private *cs35l41) return ret; } } else { - dev_err(cs35l41->dev, "Incomplete Boost component DT config\n"); - return -EINVAL; + dev_info(cs35l41->dev, "Boost disabled\n"); } /* Optional */ @@ -1148,9 +1153,31 @@ static int cs35l41_handle_pdata(struct device *dev, { struct cs35l41_irq_cfg *irq_gpio1_config = &pdata->irq_config1; struct cs35l41_irq_cfg *irq_gpio2_config = &pdata->irq_config2; + struct acpi_device *adev; + struct device *phys_dev; unsigned int val; int ret; + if (memcmp(dev_name(cs35l41->dev), "i2c-CLSA0100", 12) == 0) { + pdata->no_bst = true; + pdata->hda = true; + adev = acpi_dev_get_first_match_dev("CLSA0100", "1", -1); + if (!adev) { + dev_err(dev, "Failed to find an ACPI device\n"); + return -ENODEV; + } + + phys_dev = get_device(acpi_get_first_physical_node(adev)); + acpi_dev_put(adev); + + if (!phys_dev) { + dev_err(dev, "Failed to find a physical device\n"); + return -ENODEV; + } + cs35l41->reset_gpio = gpiod_get_index(phys_dev, NULL, 0, GPIOD_ASIS); + return 0; + } + ret = device_property_read_u32(dev, "cirrus,boost-peak-milliamp", &val); if (ret >= 0) pdata->bst_ipk = val; @@ -1237,10 +1264,22 @@ static const struct reg_sequence cs35l41_revb2_errata_patch[] = { { 0x00000040, 0x00003333 }, }; +void cs35l41_hda_init(void) +{ + struct list_head *p; + int i = 0; + + list_for_each(p, cs35l41_hda_lst) { + pr_info("%s %d\n", __func__, i++); + } +} +EXPORT_SYMBOL_GPL(cs35l41_hda_init); + int cs35l41_probe(struct cs35l41_private *cs35l41, struct cs35l41_platform_data *pdata) { u32 regid, reg_revid, i, mtl_revid, int_status, chipid_match; + struct cs35l41_hda_node *cs35l41_hda; int irq_pol = 0; int ret; @@ -1269,8 +1308,8 @@ int cs35l41_probe(struct cs35l41_private *cs35l41, } /* returning NULL can be an option if in stereo mode */ - cs35l41->reset_gpio = devm_gpiod_get_optional(cs35l41->dev, "reset", - GPIOD_OUT_LOW); + if (!cs35l41->reset_gpio) + cs35l41->reset_gpio = devm_gpiod_get_optional(cs35l41->dev, "reset", GPIOD_OUT_LOW); if (IS_ERR(cs35l41->reset_gpio)) { ret = PTR_ERR(cs35l41->reset_gpio); cs35l41->reset_gpio = NULL; @@ -1413,12 +1452,22 @@ int cs35l41_probe(struct cs35l41_private *cs35l41, goto err; } - ret = devm_snd_soc_register_component(cs35l41->dev, - &soc_component_dev_cs35l41, - cs35l41_dai, ARRAY_SIZE(cs35l41_dai)); - if (ret < 0) { - dev_err(cs35l41->dev, "Register codec failed: %d\n", ret); - goto err; + if (!cs35l41->pdata.hda) { + ret = devm_snd_soc_register_component(cs35l41->dev, + &soc_component_dev_cs35l41, + cs35l41_dai, ARRAY_SIZE(cs35l41_dai)); + if (ret < 0) { + dev_err(cs35l41->dev, "Register codec failed: %d\n", ret); + goto err; + } + } else { + if (!cs35l41_hda_lst) { + cs35l41_hda_lst = devm_kzalloc(cs35l41->dev, sizeof(*cs35l41_hda_lst), + GFP_KERNEL); + INIT_LIST_HEAD(cs35l41_hda_lst); + } + cs35l41_hda = devm_kzalloc(cs35l41->dev, sizeof(*cs35l41_hda), GFP_KERNEL); + list_add(&cs35l41_hda->node, cs35l41_hda_lst); } dev_info(cs35l41->dev, "Cirrus Logic CS35L41 (%x), Revision: %02X\n",
Hi, I would like to get some guidance about this solution to support the 16ACHg6 laptop. Hardware: - The 16ACHg6 laptop has two CS35L41 amplifiers, connected to Realtek ALC287 by an I2S bus and by and direct I2C to the CPU. - The ALC287 codec is connected to the CPU by an HDA bus. - The CS35L41 has a DSP which will require firmware to be loaded. Architecture: - To load the firmware for CS35L41, this solution will require the wm_adsp library, which requires regmap, header definitions and register tables. - To minimize the duplication of the code, the HDA functions will be placed inside the ASoC CS35L41 driver. - Finally, HDA patch_realtek will access exposed functions from ASoC CS35L41 driver to initialize the amplifiers, start and stop streams and load firmware. Notes: - This is a work in progress, so the code is not functional, its only intent is to demonstrate the overall solution - If accepted, this will be split into a couple of patches for a new patch chain Signed-off-by: Lucas Tanure <tanureal@opensource.cirrus.com> --- drivers/acpi/scan.c | 1 + drivers/platform/x86/i2c-multi-instantiate.c | 7 ++ include/sound/cs35l41.h | 4 ++ sound/pci/hda/Kconfig | 1 + sound/pci/hda/patch_realtek.c | 21 +++++- sound/soc/codecs/cs35l41.c | 75 ++++++++++++++++---- 6 files changed, 95 insertions(+), 14 deletions(-)