leandrof/linux
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Merge series "MFD/ASoC: Add support for Intel Bay Trail boards with WM5102 codec" from Hans de Goede <hdegoede@redhat.com>:

Browse Source 
Hi All,

Here is v4 of my series to add support for Intel Bay Trail based devices
which use a WM5102 codec for audio output/input.

This was developed and tested on a Lenovo Yoga Tablet 1051L.

The MFD and ASoC parts do not have any build-time dependencies
on each other. But the follow-up jack-detect series does have
patches depending on each-other and on this series. So IMHO it
would be best if this entire series would be merged through the
MFD tree to make merging the follow-up series easier.

Mark, if that is ok with you (and you are happy with the ASoC
changes) can you please Ack this ?

Changes in v4:
- Add a comment to the irq-flags override explaining that theoretically
  DSDTs using IRQF_TRIGGER_FALLING could be correct on boards where the
  IRQ controller does not support active low level interrupts

Changes in v3:
- Fix compilation error when CONFIG_ACPI is not set

Changes in v2:
- Split my WM5102 work into 2 series, one series adding basic support
  for Bay Trail boards with a WM5102 codec and a second series with
  the jack-detect work
- Various other minor code tweaks

Hans de Goede (4):
  mfd: arizona: Add MODULE_SOFTDEP("pre: arizona_ldo1")
  mfd: arizona: Replace arizona_of_get_type() with
    device_get_match_data()
  mfd: arizona: Add support for ACPI enumeration of WM5102 connected
    over SPI
  ASoC: Intel: Add DMI quirk table to soc_intel_is_byt_cr()

Pierre-Louis Bossart (1):
  ASoC: Intel: bytcr_wm5102: Add machine driver for BYT/WM5102

 drivers/mfd/arizona-core.c                    |  11 -
 drivers/mfd/arizona-i2c.c                     |  11 +-
 drivers/mfd/arizona-spi.c                     | 138 +++++-
 drivers/mfd/arizona.h                         |   9 -
 sound/soc/intel/boards/Kconfig                |  12 +
 sound/soc/intel/boards/Makefile               |   2 +
 sound/soc/intel/boards/bytcr_wm5102.c         | 465 ++++++++++++++++++
 .../intel/common/soc-acpi-intel-byt-match.c   |  16 +
 sound/soc/intel/common/soc-intel-quirks.h     |  25 +
 9 files changed, 661 insertions(+), 28 deletions(-)
 create mode 100644 sound/soc/intel/boards/bytcr_wm5102.c

Regards,

Hans
This commit is contained in:
Mark Brown 2021-02-08 18:35:55 +00:00
commit d40dac7ae8
No known key found for this signature in database
GPG Key ID: 24D68B725D5487D0
5 changed files with 520 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
sound/soc/intel/boards/Kconfig
View File

@ -111,6 +111,18 @@ config SND_SOC_INTEL_BYTCR_RT5651_MACH
Say Y or m if you have such a device. This is a recommended option.
If unsure select "N".
config SND_SOC_INTEL_BYTCR_WM5102_MACH
tristate "Baytrail and Baytrail-CR with WM5102 codec"
depends on MFD_ARIZONA && MFD_WM5102 && SPI_MASTER && ACPI
depends on X86_INTEL_LPSS || COMPILE_TEST
select SND_SOC_ACPI
select SND_SOC_WM5102
help
This adds support for ASoC machine driver for Intel(R) Baytrail and Baytrail-CR
platforms with WM5102 audio codec.
Say Y if you have such a device.
If unsure select "N".
config SND_SOC_INTEL_CHT_BSW_RT5672_MACH
tristate "Cherrytrail & Braswell with RT5672 codec"
depends on I2C && ACPI

2
sound/soc/intel/boards/Makefile
View File

@ -10,6 +10,7 @@ snd-soc-sst-sof-wm8804-objs := sof_wm8804.o
snd-soc-sst-glk-rt5682_max98357a-objs := glk_rt5682_max98357a.o hda_dsp_common.o
snd-soc-sst-bytcr-rt5640-objs := bytcr_rt5640.o
snd-soc-sst-bytcr-rt5651-objs := bytcr_rt5651.o
snd-soc-sst-bytcr-wm5102-objs := bytcr_wm5102.o
snd-soc-sst-cht-bsw-rt5672-objs := cht_bsw_rt5672.o
snd-soc-sst-cht-bsw-rt5645-objs := cht_bsw_rt5645.o
snd-soc-sst-cht-bsw-max98090_ti-objs := cht_bsw_max98090_ti.o
@ -51,6 +52,7 @@ obj-$(CONFIG_SND_SOC_INTEL_BDW_RT5650_MACH) += snd-soc-sst-bdw-rt5650-mach.o
obj-$(CONFIG_SND_SOC_INTEL_BDW_RT5677_MACH) += snd-soc-sst-bdw-rt5677-mach.o
obj-$(CONFIG_SND_SOC_INTEL_BYTCR_RT5640_MACH) += snd-soc-sst-bytcr-rt5640.o
obj-$(CONFIG_SND_SOC_INTEL_BYTCR_RT5651_MACH) += snd-soc-sst-bytcr-rt5651.o
obj-$(CONFIG_SND_SOC_INTEL_BYTCR_WM5102_MACH) += snd-soc-sst-bytcr-wm5102.o
obj-$(CONFIG_SND_SOC_INTEL_CHT_BSW_RT5672_MACH) += snd-soc-sst-cht-bsw-rt5672.o
obj-$(CONFIG_SND_SOC_INTEL_CHT_BSW_RT5645_MACH) += snd-soc-sst-cht-bsw-rt5645.o
obj-$(CONFIG_SND_SOC_INTEL_CHT_BSW_MAX98090_TI_MACH) += snd-soc-sst-cht-bsw-max98090_ti.o

465
sound/soc/intel/boards/bytcr_wm5102.c Normal file
View File

@ -0,0 +1,465 @@
// SPDX-License-Identifier: GPL-2.0-only
/*
* bytcr_wm5102.c - ASoc Machine driver for Intel Baytrail platforms with a
* Wolfson Microelectronics WM5102 codec
*
* Copyright (C) 2020 Hans de Goede <hdegoede@redhat.com>
* Loosely based on bytcr_rt5640.c which is:
* Copyright (C) 2014-2020 Intel Corp
* Author: Subhransu S. Prusty <subhransu.s.prusty@intel.com>
*/
#include <linux/acpi.h>
#include <linux/clk.h>
#include <linux/device.h>
#include <linux/init.h>
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/platform_device.h>
#include <linux/slab.h>
#include <linux/spi/spi.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include <sound/soc.h>
#include <sound/soc-acpi.h>
#include "../../codecs/wm5102.h"
#include "../atom/sst-atom-controls.h"
#define MCLK_FREQ 25000000
#define WM5102_MAX_SYSCLK_4K 49152000 /* max sysclk for 4K family */
#define WM5102_MAX_SYSCLK_11025 45158400 /* max sysclk for 11.025K family */
struct byt_wm5102_private {
struct clk *mclk;
struct gpio_desc *spkvdd_en_gpio;
};
static int byt_wm5102_spkvdd_power_event(struct snd_soc_dapm_widget *w,
struct snd_kcontrol *kcontrol, int event)
{
struct snd_soc_card *card = w->dapm->card;
struct byt_wm5102_private *priv = snd_soc_card_get_drvdata(card);
gpiod_set_value_cansleep(priv->spkvdd_en_gpio,
!!SND_SOC_DAPM_EVENT_ON(event));
return 0;
}
static int byt_wm5102_prepare_and_enable_pll1(struct snd_soc_dai *codec_dai, int rate)
{
struct snd_soc_component *codec_component = codec_dai->component;
int sr_mult = ((rate % 4000) == 0) ?
(WM5102_MAX_SYSCLK_4K / rate) :
(WM5102_MAX_SYSCLK_11025 / rate);
int ret;
/* Reset FLL1 */
snd_soc_dai_set_pll(codec_dai, WM5102_FLL1_REFCLK, ARIZONA_FLL_SRC_NONE, 0, 0);
snd_soc_dai_set_pll(codec_dai, WM5102_FLL1, ARIZONA_FLL_SRC_NONE, 0, 0);
/* Configure the FLL1 PLL before selecting it */
ret = snd_soc_dai_set_pll(codec_dai, WM5102_FLL1, ARIZONA_CLK_SRC_MCLK1,
MCLK_FREQ, rate * sr_mult);
if (ret) {
dev_err(codec_component->dev, "Error setting PLL: %d\n", ret);
return ret;
}
ret = snd_soc_component_set_sysclk(codec_component, ARIZONA_CLK_SYSCLK,
ARIZONA_CLK_SRC_FLL1, rate * sr_mult,
SND_SOC_CLOCK_IN);
if (ret) {
dev_err(codec_component->dev, "Error setting SYSCLK: %d\n", ret);
return ret;
}
ret = snd_soc_dai_set_sysclk(codec_dai, ARIZONA_CLK_SYSCLK,
rate * 512, SND_SOC_CLOCK_IN);
if (ret) {
dev_err(codec_component->dev, "Error setting clock: %d\n", ret);
return ret;
}
return 0;
}
static int platform_clock_control(struct snd_soc_dapm_widget *w,
struct snd_kcontrol *k, int event)
{
struct snd_soc_dapm_context *dapm = w->dapm;
struct snd_soc_card *card = dapm->card;
struct snd_soc_dai *codec_dai;
struct byt_wm5102_private *priv = snd_soc_card_get_drvdata(card);
int ret;
codec_dai = snd_soc_card_get_codec_dai(card, "wm5102-aif1");
if (!codec_dai) {
dev_err(card->dev, "Error codec DAI not found\n");
return -EIO;
}
if (SND_SOC_DAPM_EVENT_ON(event)) {
ret = clk_prepare_enable(priv->mclk);
if (ret) {
dev_err(card->dev, "Error enabling MCLK: %d\n", ret);
return ret;
}
ret = byt_wm5102_prepare_and_enable_pll1(codec_dai, 48000);
if (ret) {
dev_err(card->dev, "Error setting codec sysclk: %d\n", ret);
return ret;
}
} else {
/*
* The WM5102 has a separate 32KHz clock for jack-detect
* so we can disable the PLL, followed by disabling the
* platform clock which is the source-clock for the PLL.
*/
snd_soc_dai_set_pll(codec_dai, WM5102_FLL1, ARIZONA_FLL_SRC_NONE, 0, 0);
clk_disable_unprepare(priv->mclk);
}
return 0;
}
static const struct snd_soc_dapm_widget byt_wm5102_widgets[] = {
SND_SOC_DAPM_HP("Headphone", NULL),
SND_SOC_DAPM_MIC("Headset Mic", NULL),
SND_SOC_DAPM_MIC("Internal Mic", NULL),
SND_SOC_DAPM_SPK("Speaker", NULL),
SND_SOC_DAPM_SUPPLY("Platform Clock", SND_SOC_NOPM, 0, 0,
platform_clock_control, SND_SOC_DAPM_PRE_PMU |
SND_SOC_DAPM_POST_PMD),
SND_SOC_DAPM_SUPPLY("Speaker VDD", SND_SOC_NOPM, 0, 0,
byt_wm5102_spkvdd_power_event,
SND_SOC_DAPM_PRE_PMD | SND_SOC_DAPM_POST_PMU),
};
static const struct snd_soc_dapm_route byt_wm5102_audio_map[] = {
{"Headphone", NULL, "Platform Clock"},
{"Headset Mic", NULL, "Platform Clock"},
{"Internal Mic", NULL, "Platform Clock"},
{"Speaker", NULL, "Platform Clock"},
{"Speaker", NULL, "SPKOUTLP"},
{"Speaker", NULL, "SPKOUTLN"},
{"Speaker", NULL, "SPKOUTRP"},
{"Speaker", NULL, "SPKOUTRN"},
{"Speaker", NULL, "Speaker VDD"},
{"Headphone", NULL, "HPOUT1L"},
{"Headphone", NULL, "HPOUT1R"},
{"Internal Mic", NULL, "MICBIAS3"},
{"IN3L", NULL, "Internal Mic"},
/*
* The Headset Mix uses MICBIAS1 or 2 depending on if a CTIA/OMTP Headset
* is connected, as the MICBIAS is applied after the CTIA/OMTP cross-switch.
*/
{"Headset Mic", NULL, "MICBIAS1"},
{"Headset Mic", NULL, "MICBIAS2"},
{"IN1L", NULL, "Headset Mic"},
{"AIF1 Playback", NULL, "ssp0 Tx"},
{"ssp0 Tx", NULL, "modem_out"},
{"modem_in", NULL, "ssp0 Rx"},
{"ssp0 Rx", NULL, "AIF1 Capture"},
};
static const struct snd_kcontrol_new byt_wm5102_controls[] = {
SOC_DAPM_PIN_SWITCH("Headphone"),
SOC_DAPM_PIN_SWITCH("Headset Mic"),
SOC_DAPM_PIN_SWITCH("Internal Mic"),
SOC_DAPM_PIN_SWITCH("Speaker"),
};
static int byt_wm5102_init(struct snd_soc_pcm_runtime *runtime)
{
struct snd_soc_card *card = runtime->card;
struct byt_wm5102_private *priv = snd_soc_card_get_drvdata(card);
int ret;
card->dapm.idle_bias_off = true;
ret = snd_soc_add_card_controls(card, byt_wm5102_controls,
ARRAY_SIZE(byt_wm5102_controls));
if (ret) {
dev_err(card->dev, "Error adding card controls: %d\n", ret);
return ret;
}
/*
* The firmware might enable the clock at boot (this information
* may or may not be reflected in the enable clock register).
* To change the rate we must disable the clock first to cover these
* cases. Due to common clock framework restrictions that do not allow
* to disable a clock that has not been enabled, we need to enable
* the clock first.
*/
ret = clk_prepare_enable(priv->mclk);
if (!ret)
clk_disable_unprepare(priv->mclk);
ret = clk_set_rate(priv->mclk, MCLK_FREQ);
if (ret) {
dev_err(card->dev, "Error setting MCLK rate: %d\n", ret);
return ret;
}
return 0;
}
static const struct snd_soc_pcm_stream byt_wm5102_dai_params = {
.formats = SNDRV_PCM_FMTBIT_S16_LE,
.rate_min = 48000,
.rate_max = 48000,
.channels_min = 2,
.channels_max = 2,
};
static int byt_wm5102_codec_fixup(struct snd_soc_pcm_runtime *rtd,
struct snd_pcm_hw_params *params)
{
struct snd_interval *rate = hw_param_interval(params,
SNDRV_PCM_HW_PARAM_RATE);
struct snd_interval *channels = hw_param_interval(params,
SNDRV_PCM_HW_PARAM_CHANNELS);
int ret;
/* The DSP will covert the FE rate to 48k, stereo */
rate->min = 48000;
rate->max = 48000;
channels->min = 2;
channels->max = 2;
/* set SSP0 to 16-bit */
params_set_format(params, SNDRV_PCM_FORMAT_S16_LE);
/*
* Default mode for SSP configuration is TDM 4 slot, override config
* with explicit setting to I2S 2ch 16-bit. The word length is set with
* dai_set_tdm_slot() since there is no other API exposed
*/
ret = snd_soc_dai_set_fmt(asoc_rtd_to_cpu(rtd, 0),
SND_SOC_DAIFMT_I2S |
SND_SOC_DAIFMT_NB_NF |
SND_SOC_DAIFMT_CBS_CFS);
if (ret) {
dev_err(rtd->dev, "Error setting format to I2S: %d\n", ret);
return ret;
}
ret = snd_soc_dai_set_tdm_slot(asoc_rtd_to_cpu(rtd, 0), 0x3, 0x3, 2, 16);
if (ret) {
dev_err(rtd->dev, "Error setting I2S config: %d\n", ret);
return ret;
}
return 0;
}
static int byt_wm5102_aif1_startup(struct snd_pcm_substream *substream)
{
return snd_pcm_hw_constraint_single(substream->runtime,
SNDRV_PCM_HW_PARAM_RATE, 48000);
}
static const struct snd_soc_ops byt_wm5102_aif1_ops = {
.startup = byt_wm5102_aif1_startup,
};
SND_SOC_DAILINK_DEF(dummy,
DAILINK_COMP_ARRAY(COMP_DUMMY()));
SND_SOC_DAILINK_DEF(media,
DAILINK_COMP_ARRAY(COMP_CPU("media-cpu-dai")));
SND_SOC_DAILINK_DEF(deepbuffer,
DAILINK_COMP_ARRAY(COMP_CPU("deepbuffer-cpu-dai")));
SND_SOC_DAILINK_DEF(ssp0_port,
DAILINK_COMP_ARRAY(COMP_CPU("ssp0-port")));
SND_SOC_DAILINK_DEF(ssp0_codec,
DAILINK_COMP_ARRAY(COMP_CODEC(
/*
* Note there is no need to overwrite the codec-name as is done in
* other bytcr machine drivers, because the codec is a MFD child-dev.
*/
"wm5102-codec",
"wm5102-aif1")));
SND_SOC_DAILINK_DEF(platform,
DAILINK_COMP_ARRAY(COMP_PLATFORM("sst-mfld-platform")));
static struct snd_soc_dai_link byt_wm5102_dais[] = {
[MERR_DPCM_AUDIO] = {
.name = "Baytrail Audio Port",
.stream_name = "Baytrail Audio",
.nonatomic = true,
.dynamic = 1,
.dpcm_playback = 1,
.dpcm_capture = 1,
.ops = &byt_wm5102_aif1_ops,
SND_SOC_DAILINK_REG(media, dummy, platform),
},
[MERR_DPCM_DEEP_BUFFER] = {
.name = "Deep-Buffer Audio Port",
.stream_name = "Deep-Buffer Audio",
.nonatomic = true,
.dynamic = 1,
.dpcm_playback = 1,
.ops = &byt_wm5102_aif1_ops,
SND_SOC_DAILINK_REG(deepbuffer, dummy, platform),
},
/* back ends */
{
/*
* This must be named SSP2-Codec even though this machine driver
* always uses SSP0. Most machine drivers support both and dynamically
* update the dailink to point to SSP0 or SSP2, while keeping the name
* as "SSP2-Codec". The SOF tplg files hardcode the "SSP2-Codec" even
* in the byt-foo-ssp0.tplg versions because the other machine-drivers
* use "SSP2-Codec" even when SSP0 is used.
*/
.name = "SSP2-Codec",
.id = 0,
.no_pcm = 1,
.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
| SND_SOC_DAIFMT_CBS_CFS,
.be_hw_params_fixup = byt_wm5102_codec_fixup,
.nonatomic = true,
.dpcm_playback = 1,
.dpcm_capture = 1,
.init = byt_wm5102_init,
SND_SOC_DAILINK_REG(ssp0_port, ssp0_codec, platform),
},
};
/* use space before codec name to simplify card ID, and simplify driver name */
#define SOF_CARD_NAME "bytcht wm5102" /* card name will be 'sof-bytcht wm5102' */
#define SOF_DRIVER_NAME "SOF"
#define CARD_NAME "bytcr-wm5102"
#define DRIVER_NAME NULL /* card name will be used for driver name */
/* SoC card */
static struct snd_soc_card byt_wm5102_card = {
.owner = THIS_MODULE,
.dai_link = byt_wm5102_dais,
.num_links = ARRAY_SIZE(byt_wm5102_dais),
.dapm_widgets = byt_wm5102_widgets,
.num_dapm_widgets = ARRAY_SIZE(byt_wm5102_widgets),
.dapm_routes = byt_wm5102_audio_map,
.num_dapm_routes = ARRAY_SIZE(byt_wm5102_audio_map),
.fully_routed = true,
};
static int snd_byt_wm5102_mc_probe(struct platform_device *pdev)
{
char codec_name[SND_ACPI_I2C_ID_LEN];
struct device *dev = &pdev->dev;
struct byt_wm5102_private *priv;
struct snd_soc_acpi_mach *mach;
const char *platform_name;
struct acpi_device *adev;
struct device *codec_dev;
bool sof_parent;
int ret;
priv = devm_kzalloc(dev, sizeof(*priv), GFP_ATOMIC);
if (!priv)
return -ENOMEM;
/* Get MCLK */
priv->mclk = devm_clk_get(dev, "pmc_plt_clk_3");
if (IS_ERR(priv->mclk))
return dev_err_probe(dev, PTR_ERR(priv->mclk), "getting pmc_plt_clk_3\n");
/*
* Get speaker VDD enable GPIO:
* 1. Get codec-device-name
* 2. Get codec-device
* 3. Get GPIO from codec-device
*/
mach = dev->platform_data;
adev = acpi_dev_get_first_match_dev(mach->id, NULL, -1);
if (!adev) {
dev_err(dev, "Error cannot find acpi-dev for codec\n");
return -ENOENT;
}
snprintf(codec_name, sizeof(codec_name), "spi-%s", acpi_dev_name(adev));
put_device(&adev->dev);
codec_dev = bus_find_device_by_name(&spi_bus_type, NULL, codec_name);
if (!codec_dev)
return -EPROBE_DEFER;
/* Note no devm_ here since we call gpiod_get on codec_dev rather then dev */
priv->spkvdd_en_gpio = gpiod_get(codec_dev, "wlf,spkvdd-ena", GPIOD_OUT_LOW);
put_device(codec_dev);
if (IS_ERR(priv->spkvdd_en_gpio))
return dev_err_probe(dev, PTR_ERR(priv->spkvdd_en_gpio), "getting spkvdd-GPIO\n");
/* override platform name, if required */
byt_wm5102_card.dev = dev;
platform_name = mach->mach_params.platform;
ret = snd_soc_fixup_dai_links_platform_name(&byt_wm5102_card, platform_name);
if (ret)
goto out_put_gpio;
/* set card and driver name and pm-ops */
sof_parent = snd_soc_acpi_sof_parent(dev);
if (sof_parent) {
byt_wm5102_card.name = SOF_CARD_NAME;
byt_wm5102_card.driver_name = SOF_DRIVER_NAME;
dev->driver->pm = &snd_soc_pm_ops;
} else {
byt_wm5102_card.name = CARD_NAME;
byt_wm5102_card.driver_name = DRIVER_NAME;
}
snd_soc_card_set_drvdata(&byt_wm5102_card, priv);
ret = devm_snd_soc_register_card(dev, &byt_wm5102_card);
if (ret) {
dev_err_probe(dev, ret, "registering card\n");
goto out_put_gpio;
}
platform_set_drvdata(pdev, &byt_wm5102_card);
return 0;
out_put_gpio:
gpiod_put(priv->spkvdd_en_gpio);
return ret;
}
static int snd_byt_wm5102_mc_remove(struct platform_device *pdev)
{
struct snd_soc_card *card = platform_get_drvdata(pdev);
struct byt_wm5102_private *priv = snd_soc_card_get_drvdata(card);
gpiod_put(priv->spkvdd_en_gpio);
return 0;
}
static struct platform_driver snd_byt_wm5102_mc_driver = {
.driver = {
.name = "bytcr_wm5102",
},
.probe = snd_byt_wm5102_mc_probe,
.remove = snd_byt_wm5102_mc_remove,
};
module_platform_driver(snd_byt_wm5102_mc_driver);
MODULE_DESCRIPTION("ASoC Baytrail with WM5102 codec machine driver");
MODULE_AUTHOR("Hans de Goede <hdegoede@redhat.com>");
MODULE_LICENSE("GPL v2");
MODULE_ALIAS("platform:bytcr_wm5102");

16
sound/soc/intel/common/soc-acpi-intel-byt-match.c
View File

@ -154,6 +154,22 @@ struct snd_soc_acpi_mach snd_soc_acpi_intel_baytrail_machines[] = {
.sof_fw_filename = "sof-byt.ri",
.sof_tplg_filename = "sof-byt-rt5651.tplg",
},
{
.id = "WM510204",
.drv_name = "bytcr_wm5102",
.fw_filename = "intel/fw_sst_0f28.bin",
.board = "bytcr_wm5102",
.sof_fw_filename = "sof-byt.ri",
.sof_tplg_filename = "sof-byt-wm5102.tplg",
},
{
.id = "WM510205",
.drv_name = "bytcr_wm5102",
.fw_filename = "intel/fw_sst_0f28.bin",
.board = "bytcr_wm5102",
.sof_fw_filename = "sof-byt.ri",
.sof_tplg_filename = "sof-byt-wm5102.tplg",
},
{
.id = "DLGS7212",
.drv_name = "bytcht_da7213",

25
sound/soc/intel/common/soc-intel-quirks.h
View File

@ -11,6 +11,7 @@
#if IS_ENABLED(CONFIG_X86)
#include <linux/dmi.h>
#include <asm/cpu_device_id.h>
#include <asm/intel-family.h>
#include <asm/iosf_mbi.h>
@ -38,12 +39,36 @@ SOC_INTEL_IS_CPU(cml, KABYLAKE_L);
static inline bool soc_intel_is_byt_cr(struct platform_device *pdev)
{
/*
* List of systems which:
* 1. Use a non CR version of the Bay Trail SoC
* 2. Contain at least 6 interrupt resources so that the
* platform_get_resource(pdev, IORESOURCE_IRQ, 5) check below
* succeeds
* 3. Despite 1. and 2. still have their IPC IRQ at index 0 rather then 5
*
* This needs to be here so that it can be shared between the SST and
* SOF drivers. We rely on the compiler to optimize this out in files
* where soc_intel_is_byt_cr is not used.
*/
static const struct dmi_system_id force_bytcr_table[] = {
{ /* Lenovo Yoga Tablet 2 series */
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
DMI_MATCH(DMI_PRODUCT_FAMILY, "YOGATablet2"),
},
},
{}
};
struct device *dev = &pdev->dev;
int status = 0;
if (!soc_intel_is_byt())
return false;
if (dmi_check_system(force_bytcr_table))
return true;
if (iosf_mbi_available()) {
u32 bios_status;