[alsa-devel] [PATCH] ASoC: Intel: add bytcr-wm5102 machine driver
pstglia at android-x86.org
pstglia at android-x86.org
Sat Jun 3 21:54:16 CEST 2017
From: Paulo Sergio Travaglia <pstglia at gmail.com>
based on bytcr-rt5640 machine driver and android kernel source released
by Lenovo [1]
This currently targets Baytrail Lenovo Yoga 2 Tablets (tested with 1051F)
- use arizona specific constants
- set clock to codecs using snd_soc_codec_set_sysclk
- map codec member from snd_soc_dai and set pll
using snd_soc_codec_set_pll
NOTE: Currently only routes to Headphones are supported
(Speaker seems to need power/activation)
[1] - https://goo.gl/J1TR6n
Signed-off-by: Paulo Sergio Travaglia <pstglia at gmail.com>
diff --git a/sound/soc/intel/Kconfig b/sound/soc/intel/Kconfig
index 67968ef..8a6a25a 100644
--- a/sound/soc/intel/Kconfig
+++ b/sound/soc/intel/Kconfig
@@ -151,6 +151,19 @@ config SND_SOC_INTEL_BYTCR_RT5640_MACH
Say Y if you have such a device.
If unsure select "N".
+config SND_SOC_INTEL_BYTCR_WM5102_MACH
+ tristate "ASoC Audio driver for Intel Baytrail and Baytrail-CR with WM5102 codec"
+ depends on X86 && SPI && ACPI
+ select SND_SOC_WM5102
+ select SND_SST_ATOM_HIFI2_PLATFORM
+ select SND_SST_IPC_ACPI
+ select SND_SOC_INTEL_SST_MATCH if ACPI
+ 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_BYTCR_RT5651_MACH
tristate "ASoC Audio driver for Intel Baytrail and Baytrail-CR with RT5651 codec"
depends on X86 && I2C && ACPI
diff --git a/sound/soc/intel/atom/sst/sst_acpi.c b/sound/soc/intel/atom/sst/sst_acpi.c
index dd250b8..1669c46 100644
--- a/sound/soc/intel/atom/sst/sst_acpi.c
+++ b/sound/soc/intel/atom/sst/sst_acpi.c
@@ -240,10 +240,17 @@ static int sst_platform_get_resources(struct intel_sst_drv *ctx)
}
-static int is_byt_cr(struct device *dev, bool *bytcr)
+static int is_byt_cr(struct device *dev, struct sst_acpi_mach *mach, bool *bytcr)
{
int status = 0;
+ /* Lenovo Yoga2 exception - acpi_ipc_irq_index is the 1st index,
+ but iosf_mbi_read (bios_status) returns 0 for bits 26:27 */
+ if (!strcmp(mach->drv_name, "bytcr_wm5102")) {
+ *bytcr = true;
+ return status;
+ }
+
if (IS_ENABLED(CONFIG_IOSF_MBI)) {
static const struct x86_cpu_id cpu_ids[] = {
{ X86_VENDOR_INTEL, 6, 55 }, /* Valleyview, Bay Trail */
@@ -320,7 +327,7 @@ static int sst_acpi_probe(struct platform_device *pdev)
if (ret < 0)
return ret;
- ret = is_byt_cr(dev, &bytcr);
+ ret = is_byt_cr(dev, mach, &bytcr);
if (!((ret < 0) || (bytcr == false))) {
dev_info(dev, "Detected Baytrail-CR platform\n");
@@ -492,6 +499,10 @@ static struct sst_acpi_mach sst_acpi_bytcr[] = {
&byt_rvp_platform_data },
{"INTCCFFD", "bytcr_rt5640", "intel/fw_sst_0f28.bin", "bytcr_rt5640", NULL,
&byt_rvp_platform_data },
+ {"WM510204", "bytcr_wm5102", "intel/fw_sst_0f28.bin", "bytcr_wm5102", NULL,
+ &byt_rvp_platform_data },
+ {"WM510205", "bytcr_wm5102", "intel/fw_sst_0f28.bin", "bytcr_wm5102", NULL,
+ &byt_rvp_platform_data },
{"10EC5651", "bytcr_rt5651", "intel/fw_sst_0f28.bin", "bytcr_rt5651", NULL,
&byt_rvp_platform_data },
{"DLGS7212", "bytcht_da7213", "intel/fw_sst_0f28.bin", "bytcht_da7213", NULL,
diff --git a/sound/soc/intel/boards/Makefile b/sound/soc/intel/boards/Makefile
index 56896e0..396e5cf 100644
--- a/sound/soc/intel/boards/Makefile
+++ b/sound/soc/intel/boards/Makefile
@@ -6,6 +6,7 @@ snd-soc-sst-broadwell-objs := broadwell.o
snd-soc-sst-bxt-da7219_max98357a-objs := bxt_da7219_max98357a.o
snd-soc-sst-bxt-rt298-objs := bxt_rt298.o
snd-soc-sst-bytcr-rt5640-objs := bytcr_rt5640.o
+snd-soc-sst-bytcr-wm5102-objs := bytcr_wm5102.o
snd-soc-sst-bytcr-rt5651-objs := bytcr_rt5651.o
snd-soc-sst-cht-bsw-rt5672-objs := cht_bsw_rt5672.o
snd-soc-sst-cht-bsw-rt5645-objs := cht_bsw_rt5645.o
@@ -24,6 +25,7 @@ obj-$(CONFIG_SND_SOC_INTEL_BXT_RT298_MACH) += snd-soc-sst-bxt-rt298.o
obj-$(CONFIG_SND_SOC_INTEL_BROADWELL_MACH) += snd-soc-sst-broadwell.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-$(CONFIG_SND_SOC_INTEL_BYTCR_WM5102_MACH) += snd-soc-sst-bytcr-wm5102.o
obj-$(CONFIG_SND_SOC_INTEL_BYTCR_RT5651_MACH) += snd-soc-sst-bytcr-rt5651.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
diff --git a/sound/soc/intel/boards/bytcr_wm5102.c b/sound/soc/intel/boards/bytcr_wm5102.c
new file mode 100644
index 0000000..ade1e67
--- /dev/null
+++ b/sound/soc/intel/boards/bytcr_wm5102.c
@@ -0,0 +1,769 @@
+/*
+ * byt_cr_dpcm_wm5102.c - ASoc Machine driver for Intel Byt CR platform
+ *
+ * Based on bytcr_rt5640 driver
+ * Copyright (C) 2014 Intel Corp
+ * Author: Subhransu S. Prusty <subhransu.s.prusty at intel.com>
+ * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ */
+
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/acpi.h>
+#include <linux/device.h>
+#include <linux/dmi.h>
+#include <linux/slab.h>
+#include <asm/cpu_device_id.h>
+#include <asm/platform_sst_audio.h>
+#include <linux/clk.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+#include <sound/jack.h>
+#include "../../codecs/wm5102.h"
+#include "../atom/sst-atom-controls.h"
+#include "../common/sst-acpi.h"
+#include "../common/sst-dsp.h"
+
+enum {
+ BYT_WM5102_DMIC1_MAP,
+ BYT_WM5102_DMIC2_MAP,
+ BYT_WM5102_IN1_MAP,
+ BYT_WM5102_IN3_MAP,
+};
+
+#define BYT_WM5102_MAP(quirk) ((quirk) & 0xff)
+#define BYT_WM5102_DMIC_EN BIT(16)
+#define BYT_WM5102_MONO_SPEAKER BIT(17)
+#define BYT_WM5102_DIFF_MIC BIT(18) /* defaut is single-ended */
+#define BYT_WM5102_SSP2_AIF2 BIT(19) /* default is using AIF1 */
+#define BYT_WM5102_SSP0_AIF1 BIT(20)
+#define BYT_WM5102_SSP0_AIF2 BIT(21)
+#define BYT_WM5102_MCLK_EN BIT(22)
+#define BYT_WM5102_MCLK_25MHZ BIT(23)
+
+#define WM5102_MAX_SYSCLK_1 49152000 /*max sysclk for 4K family*/
+#define WM5102_MAX_SYSCLK_2 45158400 /*max sysclk for 11.025K family*/
+
+struct byt_wm5102_private {
+ struct clk *mclk;
+};
+
+static unsigned long byt_wm5102_quirk = BYT_WM5102_MCLK_EN;
+
+static void log_quirks(struct device *dev)
+{
+ if (BYT_WM5102_MAP(byt_wm5102_quirk) == BYT_WM5102_DMIC1_MAP)
+ dev_info(dev, "quirk DMIC1_MAP enabled");
+ if (BYT_WM5102_MAP(byt_wm5102_quirk) == BYT_WM5102_DMIC2_MAP)
+ dev_info(dev, "quirk DMIC2_MAP enabled");
+ if (BYT_WM5102_MAP(byt_wm5102_quirk) == BYT_WM5102_IN1_MAP)
+ dev_info(dev, "quirk IN1_MAP enabled");
+ if (BYT_WM5102_MAP(byt_wm5102_quirk) == BYT_WM5102_IN3_MAP)
+ dev_info(dev, "quirk IN3_MAP enabled");
+ if (byt_wm5102_quirk & BYT_WM5102_DMIC_EN)
+ dev_info(dev, "quirk DMIC enabled");
+ if (byt_wm5102_quirk & BYT_WM5102_MONO_SPEAKER)
+ dev_info(dev, "quirk MONO_SPEAKER enabled");
+ if (byt_wm5102_quirk & BYT_WM5102_DIFF_MIC)
+ dev_info(dev, "quirk DIFF_MIC enabled");
+ if (byt_wm5102_quirk & BYT_WM5102_SSP2_AIF2)
+ dev_info(dev, "quirk SSP2_AIF2 enabled");
+ if (byt_wm5102_quirk & BYT_WM5102_SSP0_AIF1)
+ dev_info(dev, "quirk SSP0_AIF1 enabled");
+ if (byt_wm5102_quirk & BYT_WM5102_SSP0_AIF2)
+ dev_info(dev, "quirk SSP0_AIF2 enabled");
+ if (byt_wm5102_quirk & BYT_WM5102_MCLK_EN)
+ dev_info(dev, "quirk MCLK_EN enabled");
+ if (byt_wm5102_quirk & BYT_WM5102_MCLK_25MHZ)
+ dev_info(dev, "quirk MCLK_25MHZ enabled");
+}
+
+
+#define BYT_CODEC_DAI1 "wm5102-aif1"
+#define BYT_CODEC_DAI2 "wm5102-aif2"
+
+static inline struct snd_soc_dai *byt_get_codec_dai(struct snd_soc_card *card)
+{
+ struct snd_soc_pcm_runtime *rtd;
+
+ list_for_each_entry(rtd, &card->rtd_list, list) {
+ if (!strncmp(rtd->codec_dai->name, BYT_CODEC_DAI1,
+ strlen(BYT_CODEC_DAI1)))
+ return rtd->codec_dai;
+ if (!strncmp(rtd->codec_dai->name, BYT_CODEC_DAI2,
+ strlen(BYT_CODEC_DAI2)))
+ return rtd->codec_dai;
+
+ }
+ return NULL;
+}
+
+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 = byt_get_codec_dai(card);
+ if (!codec_dai) {
+ dev_err(card->dev,
+ "Codec dai not found; Unable to set platform clock\n");
+ return -EIO;
+ }
+
+ if (SND_SOC_DAPM_EVENT_ON(event)) {
+ if ((byt_wm5102_quirk & BYT_WM5102_MCLK_EN) && priv->mclk) {
+ ret = clk_prepare_enable(priv->mclk);
+ if (ret < 0) {
+ dev_err(card->dev,
+ "could not configure MCLK state");
+ return ret;
+ }
+ }
+ ret = snd_soc_dai_set_sysclk(codec_dai, ARIZONA_CLK_SYSCLK,
+ 48000 * 512,
+ SND_SOC_CLOCK_IN);
+ } else {
+ /*
+ * Set codec clock source to internal clock before
+ * turning off the platform clock. Codec needs clock
+ * for Jack detection and button press
+ */
+ ret = snd_soc_dai_set_sysclk(codec_dai, ARIZONA_CLK_SYSCLK,
+ 48000 * 512,
+ SND_SOC_CLOCK_IN);
+ if (!ret) {
+ if ((byt_wm5102_quirk & BYT_WM5102_MCLK_EN) && priv->mclk)
+ clk_disable_unprepare(priv->mclk);
+ }
+ }
+
+ if (ret < 0) {
+ dev_err(card->dev, "can't set codec sysclk: %d\n", ret);
+ return ret;
+ }
+
+ 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),
+
+};
+
+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"},
+
+ {"Headset Mic", NULL, "MICBIAS1"},
+ {"IN1L", NULL, "Headset Mic"},
+ {"Headphone", NULL, "HPOUT1L"},
+ {"Headphone", NULL, "HPOUT1R"},
+};
+
+static const struct snd_soc_dapm_route byt_wm5102_intmic_dmic1_map[] = {
+ {"DMIC1", NULL, "Internal Mic"},
+};
+
+static const struct snd_soc_dapm_route byt_wm5102_intmic_dmic2_map[] = {
+ {"DMIC2", NULL, "Internal Mic"},
+};
+
+static const struct snd_soc_dapm_route byt_wm5102_intmic_in1_map[] = {
+ {"Internal Mic", NULL, "MICBIAS1"},
+ {"IN1P", NULL, "Internal Mic"},
+};
+
+static const struct snd_soc_dapm_route byt_wm5102_intmic_in3_map[] = {
+ {"Internal Mic", NULL, "MICBIAS1"},
+ {"IN3P", NULL, "Internal Mic"},
+};
+
+static const struct snd_soc_dapm_route byt_wm5102_ssp2_aif1_map[] = {
+ {"ssp2 Tx", NULL, "codec_out0"},
+ {"ssp2 Tx", NULL, "codec_out1"},
+ {"codec_in0", NULL, "ssp2 Rx"},
+ {"codec_in1", NULL, "ssp2 Rx"},
+
+ {"AIF1 Playback", NULL, "ssp2 Tx"},
+ {"ssp2 Rx", NULL, "AIF1 Capture"},
+};
+
+static const struct snd_soc_dapm_route byt_wm5102_ssp2_aif2_map[] = {
+ {"ssp2 Tx", NULL, "codec_out0"},
+ {"ssp2 Tx", NULL, "codec_out1"},
+ {"codec_in0", NULL, "ssp2 Rx"},
+ {"codec_in1", NULL, "ssp2 Rx"},
+
+ {"AIF2 Playback", NULL, "ssp2 Tx"},
+ {"ssp2 Rx", NULL, "AIF2 Capture"},
+};
+
+static const struct snd_soc_dapm_route byt_wm5102_ssp0_aif1_map[] = {
+ {"ssp0 Tx", NULL, "modem_out"},
+ {"modem_in", NULL, "ssp0 Rx"},
+
+ {"AIF1 Playback", NULL, "ssp0 Tx"},
+ {"ssp0 Rx", NULL, "AIF1 Capture"},
+};
+
+static const struct snd_soc_dapm_route byt_wm5102_ssp0_aif2_map[] = {
+ {"ssp0 Tx", NULL, "modem_out"},
+ {"modem_in", NULL, "ssp0 Rx"},
+
+ {"AIF2 Playback", NULL, "ssp0 Tx"},
+ {"ssp0 Rx", NULL, "AIF2 Capture"},
+};
+
+static const struct snd_soc_dapm_route byt_wm5102_stereo_spk_map[] = {
+ {"Speaker", NULL, "SPKOUTLP"},
+ {"Speaker", NULL, "SPKOUTLN"},
+ {"Speaker", NULL, "SPKOUTRP"},
+ {"Speaker", NULL, "SPKOUTRN"},
+};
+
+static const struct snd_soc_dapm_route byt_wm5102_mono_spk_map[] = {
+ {"Speaker", NULL, "SPKOUTLP"},
+ {"Speaker", NULL, "SPKOUTLN"},
+};
+
+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_aif1_hw_params(struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *params)
+{
+ struct snd_soc_pcm_runtime *rtd = substream->private_data;
+ struct snd_soc_dai *codec_dai = rtd->codec_dai;
+ struct snd_soc_codec *wm5102_codec = codec_dai->codec;
+ int ret;
+
+ int sr = params_rate(params);
+ int sr_mult = (params_rate(params) % 4000 == 0) ? (WM5102_MAX_SYSCLK_1/params_rate(params)) : (WM5102_MAX_SYSCLK_2/params_rate(params));
+
+
+ ret = snd_soc_dai_set_sysclk(codec_dai, ARIZONA_CLK_SYSCLK,
+ params_rate(params) * 512,
+ SND_SOC_CLOCK_IN);
+
+ if (ret < 0) {
+ dev_err(rtd->dev, "can't set codec clock %d\n", ret);
+ return ret;
+ }
+
+ /*reset FLL1*/
+ snd_soc_codec_set_pll(wm5102_codec, WM5102_FLL1_REFCLK,
+ ARIZONA_FLL_SRC_NONE,
+ 0,
+ 0);
+
+ snd_soc_codec_set_pll(wm5102_codec, WM5102_FLL1,
+ ARIZONA_FLL_SRC_NONE,
+ 0,
+ 0);
+
+ ret = snd_soc_codec_set_pll(wm5102_codec, WM5102_FLL1,
+ ARIZONA_CLK_SRC_MCLK1,
+ 25000000,
+ sr * sr_mult);
+
+ if (ret < 0) {
+ dev_err(rtd->dev, "can't set codec pll: %d\n", ret);
+ return ret;
+ }
+
+ ret = snd_soc_codec_set_sysclk(wm5102_codec,
+ ARIZONA_CLK_SYSCLK,
+ ARIZONA_CLK_SRC_FLL1,
+ sr * sr_mult,
+ SND_SOC_CLOCK_IN);
+ if (ret != 0) {
+ dev_err(wm5102_codec->dev, "Failed to set AYNCCLK: %d\n", ret);
+ return ret;
+ }
+
+ ret = snd_soc_codec_set_sysclk(wm5102_codec,
+ ARIZONA_CLK_SYSCLK, 0,
+ sr * sr_mult,
+ SND_SOC_CLOCK_OUT);
+ if (ret < 0) {
+ dev_err(rtd->dev, "can't set OPCLK %d\n", ret);
+ }
+
+ return 0;
+}
+
+static int byt_wm5102_quirk_cb(const struct dmi_system_id *id)
+{
+ byt_wm5102_quirk = (unsigned long)id->driver_data;
+ return 1;
+}
+
+static const struct dmi_system_id byt_wm5102_quirk_table[] = {
+ {
+ .callback = byt_wm5102_quirk_cb,
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
+ DMI_MATCH(DMI_CHASSIS_VERSION, "1051F"),
+ },
+ .driver_data = (unsigned long *)(BYT_WM5102_MCLK_25MHZ |
+ BYT_WM5102_MCLK_EN |
+ BYT_WM5102_SSP0_AIF1),
+
+ },
+ {}
+};
+
+static int byt_wm5102_init(struct snd_soc_pcm_runtime *runtime)
+{
+ int ret;
+ struct snd_soc_codec *codec = runtime->codec;
+ struct snd_soc_card *card = runtime->card;
+ const struct snd_soc_dapm_route *custom_map;
+ struct byt_wm5102_private *priv = snd_soc_card_get_drvdata(card);
+ int num_routes;
+
+ 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, "unable to add card controls\n");
+ return ret;
+ }
+
+ if (byt_wm5102_quirk & BYT_WM5102_SSP2_AIF2) {
+ ret = snd_soc_dapm_add_routes(&card->dapm,
+ byt_wm5102_ssp2_aif2_map,
+ ARRAY_SIZE(byt_wm5102_ssp2_aif2_map));
+ } else if (byt_wm5102_quirk & BYT_WM5102_SSP0_AIF1) {
+ ret = snd_soc_dapm_add_routes(&card->dapm,
+ byt_wm5102_ssp0_aif1_map,
+ ARRAY_SIZE(byt_wm5102_ssp0_aif1_map));
+ } else if (byt_wm5102_quirk & BYT_WM5102_SSP0_AIF2) {
+ ret = snd_soc_dapm_add_routes(&card->dapm,
+ byt_wm5102_ssp0_aif2_map,
+ ARRAY_SIZE(byt_wm5102_ssp0_aif2_map));
+ } else {
+ ret = snd_soc_dapm_add_routes(&card->dapm,
+ byt_wm5102_ssp2_aif1_map,
+ ARRAY_SIZE(byt_wm5102_ssp2_aif1_map));
+ }
+ if (ret)
+ return ret;
+
+ if (byt_wm5102_quirk & BYT_WM5102_MONO_SPEAKER) {
+ ret = snd_soc_dapm_add_routes(&card->dapm,
+ byt_wm5102_mono_spk_map,
+ ARRAY_SIZE(byt_wm5102_mono_spk_map));
+ } else {
+ ret = snd_soc_dapm_add_routes(&card->dapm,
+ byt_wm5102_stereo_spk_map,
+ ARRAY_SIZE(byt_wm5102_stereo_spk_map));
+ }
+ if (ret)
+ return ret;
+
+ snd_soc_dapm_ignore_suspend(&card->dapm, "Headphone");
+ snd_soc_dapm_ignore_suspend(&card->dapm, "Speaker");
+
+ if ((byt_wm5102_quirk & BYT_WM5102_MCLK_EN) && priv->mclk) {
+ /*
+ * 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);
+
+ if (byt_wm5102_quirk & BYT_WM5102_MCLK_25MHZ)
+ ret = clk_set_rate(priv->mclk, 25000000);
+ else
+ ret = clk_set_rate(priv->mclk, 19200000);
+
+ if (ret)
+ dev_err(card->dev, "unable to set MCLK rate\n");
+ }
+
+ return ret;
+}
+
+static const struct snd_soc_pcm_stream byt_wm5102_dai_params = {
+ .formats = SNDRV_PCM_FMTBIT_S24_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 = rate->max = 48000;
+ channels->min = channels->max = 2;
+
+ if ((byt_wm5102_quirk & BYT_WM5102_SSP0_AIF1) ||
+ (byt_wm5102_quirk & BYT_WM5102_SSP0_AIF2)) {
+
+ /* 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(rtd->cpu_dai,
+ SND_SOC_DAIFMT_I2S |
+ SND_SOC_DAIFMT_NB_NF |
+ SND_SOC_DAIFMT_CBS_CFS
+ );
+ if (ret < 0) {
+ dev_err(rtd->dev, "can't set format to I2S, err %d\n", ret);
+ return ret;
+ }
+
+ ret = snd_soc_dai_set_tdm_slot(rtd->cpu_dai, 0x3, 0x3, 2, 16);
+ if (ret < 0) {
+ dev_err(rtd->dev, "can't set I2S config, err %d\n", ret);
+ return ret;
+ }
+
+ } else {
+
+ /* set SSP2 to 24-bit */
+ params_set_format(params, SNDRV_PCM_FORMAT_S24_LE);
+
+ /*
+ * Default mode for SSP configuration is TDM 4 slot, override config
+ * with explicit setting to I2S 2ch 24-bit. The word length is set with
+ * dai_set_tdm_slot() since there is no other API exposed
+ */
+ ret = snd_soc_dai_set_fmt(rtd->cpu_dai,
+ SND_SOC_DAIFMT_I2S |
+ SND_SOC_DAIFMT_NB_NF |
+ SND_SOC_DAIFMT_CBS_CFS
+ );
+ if (ret < 0) {
+ dev_err(rtd->dev, "can't set format to I2S, err %d\n", ret);
+ return ret;
+ }
+
+ ret = snd_soc_dai_set_tdm_slot(rtd->cpu_dai, 0x3, 0x3, 2, 24);
+ if (ret < 0) {
+ dev_err(rtd->dev, "can't set I2S config, err %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,
+};
+
+static const struct snd_soc_ops byt_wm5102_be_ssp2_ops = {
+ .hw_params = byt_wm5102_aif1_hw_params,
+};
+
+static struct snd_soc_dai_link byt_wm5102_dais[] = {
+ [MERR_DPCM_AUDIO] = {
+ .name = "Baytrail Audio Port",
+ .stream_name = "Baytrail Audio",
+ .cpu_dai_name = "media-cpu-dai",
+ .codec_dai_name = "snd-soc-dummy-dai",
+ .codec_name = "snd-soc-dummy",
+ .platform_name = "sst-mfld-platform",
+ .nonatomic = true,
+ .dynamic = 1,
+ .dpcm_playback = 1,
+ .dpcm_capture = 1,
+ .ops = &byt_wm5102_aif1_ops,
+ },
+ [MERR_DPCM_DEEP_BUFFER] = {
+ .name = "Deep-Buffer Audio Port",
+ .stream_name = "Deep-Buffer Audio",
+ .cpu_dai_name = "deepbuffer-cpu-dai",
+ .codec_dai_name = "snd-soc-dummy-dai",
+ .codec_name = "snd-soc-dummy",
+ .platform_name = "sst-mfld-platform",
+ .nonatomic = true,
+ .dynamic = 1,
+ .dpcm_playback = 1,
+ .ops = &byt_wm5102_aif1_ops,
+ },
+ [MERR_DPCM_COMPR] = {
+ .name = "Baytrail Compressed Port",
+ .stream_name = "Baytrail Compress",
+ .cpu_dai_name = "compress-cpu-dai",
+ .codec_dai_name = "snd-soc-dummy-dai",
+ .codec_name = "snd-soc-dummy",
+ .platform_name = "sst-mfld-platform",
+ },
+ /* back ends */
+ {
+ .name = "SSP2-Codec",
+ .id = 1,
+ .cpu_dai_name = "ssp2-port", /* overwritten for ssp0 routing */
+ .platform_name = "sst-mfld-platform",
+ .no_pcm = 1,
+ .codec_dai_name = "wm5102-aif1", /* changed w/ quirk */
+ .codec_name = "wm5102-codec", /* overwritten with HID */
+ .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
+ | SND_SOC_DAIFMT_CBS_CFS,
+ .be_hw_params_fixup = byt_wm5102_codec_fixup,
+ .ignore_suspend = 1,
+ .nonatomic = true,
+ .dpcm_playback = 1,
+ .dpcm_capture = 1,
+ .init = byt_wm5102_init,
+ .ops = &byt_wm5102_be_ssp2_ops,
+ },
+};
+
+/* SoC card */
+static struct snd_soc_card byt_wm5102_card = {
+ .name = "bytcr-wm5102",
+ .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 char byt_wm5102_codec_name[13]; /* wm5102-codec */
+static char byt_wm5102_codec_aif_name[12]; /* = "wm5102-aif[1|2]" */
+static char byt_wm5102_cpu_dai_name[10]; /* = "ssp[0|2]-port" */
+
+static bool is_valleyview(void)
+{
+ static const struct x86_cpu_id cpu_ids[] = {
+ { X86_VENDOR_INTEL, 6, 55 }, /* Valleyview, Bay Trail */
+ {}
+ };
+
+ if (!x86_match_cpu(cpu_ids))
+ return false;
+ return true;
+}
+
+struct acpi_chan_package { /* ACPICA seems to require 64 bit integers */
+ u64 aif_value; /* 1: AIF1, 2: AIF2 */
+ u64 mclock_value; /* usually 25MHz (0x17d7940), ignored */
+};
+
+static int snd_byt_wm5102_mc_probe(struct platform_device *pdev)
+{
+ int ret_val = 0;
+ struct sst_acpi_mach *mach;
+ int i;
+ int dai_index;
+ struct byt_wm5102_private *priv;
+ bool is_bytcr = false;
+
+ priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_ATOMIC);
+ if (!priv)
+ return -ENOMEM;
+
+ /* register the soc card */
+ byt_wm5102_card.dev = &pdev->dev;
+ mach = byt_wm5102_card.dev->platform_data;
+ snd_soc_card_set_drvdata(&byt_wm5102_card, priv);
+
+ /* fix index of codec dai */
+ dai_index = MERR_DPCM_COMPR + 1;
+ for (i = 0; i < ARRAY_SIZE(byt_wm5102_dais); i++) {
+ if (!strcmp(byt_wm5102_dais[i].codec_name, "wm5102-codec")) {
+ dai_index = i;
+ break;
+ }
+ }
+
+ /*
+ * swap SSP0 if bytcr is detected
+ * (will be overridden if DMI quirk is detected)
+ */
+ if (is_valleyview()) {
+ struct sst_platform_info *p_info = mach->pdata;
+ const struct sst_res_info *res_info = p_info->res_info;
+
+ if (res_info->acpi_ipc_irq_index == 0) {
+ is_bytcr = true;
+ }
+ }
+
+ if (is_bytcr) {
+ /*
+ * Baytrail CR platforms may have CHAN package in BIOS, try
+ * to find relevant routing quirk based as done on Windows
+ * platforms. We have to read the information directly from the
+ * BIOS, at this stage the card is not created and the links
+ * with the codec driver/pdata are non-existent
+ */
+
+ struct acpi_chan_package chan_package;
+
+ /* format specified: 2 64-bit integers */
+ struct acpi_buffer format = {sizeof("NN"), "NN"};
+ struct acpi_buffer state = {0, NULL};
+ struct sst_acpi_package_context pkg_ctx;
+ bool pkg_found = false;
+
+ state.length = sizeof(chan_package);
+ state.pointer = &chan_package;
+
+ pkg_ctx.name = "CHAN";
+ pkg_ctx.length = 2;
+ pkg_ctx.format = &format;
+ pkg_ctx.state = &state;
+ pkg_ctx.data_valid = false;
+
+ pkg_found = sst_acpi_find_package_from_hid(mach->id, &pkg_ctx);
+ if (pkg_found) {
+ if (chan_package.aif_value == 1) {
+ dev_info(&pdev->dev, "BIOS Routing: AIF1 connected\n");
+ byt_wm5102_quirk |= BYT_WM5102_SSP0_AIF1;
+ } else if (chan_package.aif_value == 2) {
+ dev_info(&pdev->dev, "BIOS Routing: AIF2 connected\n");
+ byt_wm5102_quirk |= BYT_WM5102_SSP0_AIF2;
+ } else {
+ dev_info(&pdev->dev, "BIOS Routing isn't valid, ignored\n");
+ pkg_found = false;
+ }
+ }
+
+ if (!pkg_found) {
+ /* no BIOS indications, assume SSP0-AIF1 connection */
+ byt_wm5102_quirk |= BYT_WM5102_SSP0_AIF1;
+ }
+
+ /* change defaults for Baytrail-CR capture */
+ byt_wm5102_quirk |= BYT_WM5102_IN1_MAP;
+ byt_wm5102_quirk |= BYT_WM5102_DIFF_MIC;
+ } else {
+ byt_wm5102_quirk |= (BYT_WM5102_DMIC1_MAP |
+ BYT_WM5102_DMIC_EN);
+ }
+
+ /* check quirks before creating card */
+ dmi_check_system(byt_wm5102_quirk_table);
+ log_quirks(&pdev->dev);
+
+ if ((byt_wm5102_quirk & BYT_WM5102_SSP2_AIF2) ||
+ (byt_wm5102_quirk & BYT_WM5102_SSP0_AIF2)) {
+
+ /* fixup codec aif name */
+ snprintf(byt_wm5102_codec_aif_name,
+ sizeof(byt_wm5102_codec_aif_name),
+ "%s", "wm5102-aif2");
+
+ byt_wm5102_dais[dai_index].codec_dai_name =
+ byt_wm5102_codec_aif_name;
+ }
+
+ if ((byt_wm5102_quirk & BYT_WM5102_SSP0_AIF1) ||
+ (byt_wm5102_quirk & BYT_WM5102_SSP0_AIF2)) {
+
+ /* fixup cpu dai name name */
+ snprintf(byt_wm5102_cpu_dai_name,
+ sizeof(byt_wm5102_cpu_dai_name),
+ "%s", "ssp0-port");
+
+ byt_wm5102_dais[dai_index].cpu_dai_name =
+ byt_wm5102_cpu_dai_name;
+ }
+
+ if ((byt_wm5102_quirk & BYT_WM5102_MCLK_EN) && (is_valleyview())) {
+ priv->mclk = devm_clk_get(&pdev->dev, "pmc_plt_clk_3");
+ if (IS_ERR(priv->mclk)) {
+ ret_val = PTR_ERR(priv->mclk);
+
+ dev_err(&pdev->dev,
+ "Failed to get MCLK from pmc_plt_clk_3: %d\n",
+ ret_val);
+
+ /*
+ * Fall back to bit clock usage for -ENOENT (clock not
+ * available likely due to missing dependencies), bail
+ * for all other errors, including -EPROBE_DEFER
+ */
+ if (ret_val != -ENOENT)
+ return ret_val;
+ byt_wm5102_quirk &= ~BYT_WM5102_MCLK_EN;
+ }
+ }
+
+ ret_val = devm_snd_soc_register_card(&pdev->dev, &byt_wm5102_card);
+
+ if (ret_val) {
+ dev_err(&pdev->dev, "devm_snd_soc_register_card failed %d\n",
+ ret_val);
+ return ret_val;
+ }
+ platform_set_drvdata(pdev, &byt_wm5102_card);
+ return ret_val;
+}
+
+static struct platform_driver snd_byt_wm5102_mc_driver = {
+ .driver = {
+ .name = "bytcr_wm5102",
+ },
+ .probe = snd_byt_wm5102_mc_probe,
+};
+
+module_platform_driver(snd_byt_wm5102_mc_driver);
+
+MODULE_DESCRIPTION("ASoC Intel(R) Baytrail CR Machine driver");
+MODULE_AUTHOR("Subhransu S. Prusty <subhransu.s.prusty at intel.com>");
+MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("platform:bytcr_wm5102");
--
2.7.4
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