Add mt8186 platform and affiliated driver.
Signed-off-by: Jiaxin Yu <jiaxin.yu@xxxxxxxxxxxx>
---
sound/soc/mediatek/Kconfig | 12 +
sound/soc/mediatek/Makefile | 1 +
sound/soc/mediatek/mt8186/Makefile | 19 +
sound/soc/mediatek/mt8186/mt8186-afe-common.h | 235 ++
.../soc/mediatek/mt8186/mt8186-afe-control.c | 261 ++
sound/soc/mediatek/mt8186/mt8186-afe-pcm.c | 3009 +++++++++++++++++
6 files changed, 3537 insertions(+)
create mode 100644 sound/soc/mediatek/mt8186/Makefile
create mode 100644 sound/soc/mediatek/mt8186/mt8186-afe-common.h
create mode 100644 sound/soc/mediatek/mt8186/mt8186-afe-control.c
create mode 100644 sound/soc/mediatek/mt8186/mt8186-afe-pcm.c
diff --git a/sound/soc/mediatek/mt8186/mt8186-afe-control.c b/sound/soc/mediatek/mt8186/mt8186-afe-control.c
new file mode 100644
index 000000000000..2d78212c3c3f
--- /dev/null
+++ b/sound/soc/mediatek/mt8186/mt8186-afe-control.c
@@ -0,0 +1,261 @@
+// SPDX-License-Identifier: GPL-2.0
+//
+// MediaTek ALSA SoC Audio Control
+//
+// Copyright (c) 2022 MediaTek Inc.
+// Author: Jiaxin Yu <jiaxin.yu@xxxxxxxxxxxx>
+
+#include "mt8186-afe-common.h"
+#include <linux/pm_runtime.h>
+
+
+static unsigned int pcm_rate_transform(struct device *dev,
+ unsigned int rate)
+{
+ switch (rate) {
+ case 8000:
+ return MTK_AFE_PCM_RATE_8K;
+ case 16000:
+ return MTK_AFE_PCM_RATE_16K;
+ case 32000:
+ return MTK_AFE_PCM_RATE_32K;
+ case 48000:
+ return MTK_AFE_PCM_RATE_48K;
+ default:
+ dev_info(dev, "%s(), rate %u invalid, use %d!!!\n",
+ __func__,
+ rate, MTK_AFE_PCM_RATE_32K);
+ return MTK_AFE_PCM_RATE_32K;
+ }
+}
+
+unsigned int mt8186_tdm_relatch_rate_transform(struct device *dev,
+ unsigned int rate)
+{
+ switch (rate) {
+ case 8000:
+ return MTK_AFE_TDM_RELATCH_RATE_8K;
+ case 11025:
+ return MTK_AFE_TDM_RELATCH_RATE_11K;
+ case 12000:
+ return MTK_AFE_TDM_RELATCH_RATE_12K;
+ case 16000:
+ return MTK_AFE_TDM_RELATCH_RATE_16K;
+ case 22050:
+ return MTK_AFE_TDM_RELATCH_RATE_22K;
+ case 24000:
+ return MTK_AFE_TDM_RELATCH_RATE_24K;
+ case 32000:
+ return MTK_AFE_TDM_RELATCH_RATE_32K;
+ case 44100:
+ return MTK_AFE_TDM_RELATCH_RATE_44K;
+ case 48000:
+ return MTK_AFE_TDM_RELATCH_RATE_48K;
+ case 88200:
+ return MTK_AFE_TDM_RELATCH_RATE_88K;
+ case 96000:
+ return MTK_AFE_TDM_RELATCH_RATE_96K;
+ case 176400:
+ return MTK_AFE_TDM_RELATCH_RATE_176K;
+ case 192000:
+ return MTK_AFE_TDM_RELATCH_RATE_192K;
+ case 352800:
+ return MTK_AFE_TDM_RELATCH_RATE_352K;
+ case 384000:
+ return MTK_AFE_TDM_RELATCH_RATE_384K;
+ default:
+ dev_info(dev, "%s(), rate %u invalid, use %d!!!\n",
+ __func__,
+ rate, MTK_AFE_TDM_RELATCH_RATE_48K);
+ return MTK_AFE_TDM_RELATCH_RATE_48K;
+ }
+}
+
+unsigned int mt8186_rate_transform(struct device *dev,
+ unsigned int rate, int aud_blk)
+{
+ switch (aud_blk) {
+ case MT8186_DAI_PCM:
+ return pcm_rate_transform(dev, rate);
+ case MT8186_DAI_TDM_IN:
+ return tdm_rate_transform(dev, rate);
+ default:
+ return mt8186_general_rate_transform(dev, rate);
+ }
+}
+
+int mt8186_dai_set_priv(struct mtk_base_afe *afe, int id,
+ int priv_size, const void *priv_data)
+{
+ struct mt8186_afe_private *afe_priv = afe->platform_priv;
+ void *temp_data;
+
+ temp_data = devm_kzalloc(afe->dev,
+ priv_size,
+ GFP_KERNEL);
+ if (!temp_data)
+ return -ENOMEM;
+
+ if (priv_data)
+ memcpy(temp_data, priv_data, priv_size);
+
+ afe_priv->dai_priv[id] = temp_data;
+
+ return 0;
+}
diff --git a/sound/soc/mediatek/mt8186/mt8186-afe-pcm.c b/sound/soc/mediatek/mt8186/mt8186-afe-pcm.c
new file mode 100644
index 000000000000..aaba8627d9e1
--- /dev/null
+++ b/sound/soc/mediatek/mt8186/mt8186-afe-pcm.c
@@ -0,0 +1,3009 @@
+// SPDX-License-Identifier: GPL-2.0
+//
+// Mediatek ALSA SoC AFE platform driver for 8186
+//
+// Copyright (c) 2022 MediaTek Inc.
+// Author: Jiaxin Yu <jiaxin.yu@xxxxxxxxxxxx>
+
+#include <linux/delay.h>
+#include <linux/dma-mapping.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/of_address.h>
+#include <linux/pm_runtime.h>
+#include <linux/reset.h>
+#include <sound/soc.h>
+
+#include "../common/mtk-afe-platform-driver.h"
+#include "../common/mtk-afe-fe-dai.h"
+
+#include "mt8186-afe-common.h"
+#include "mt8186-afe-clk.h"
+#include "mt8186-afe-gpio.h"
+#include "mt8186-interconnection.h"
+
+
+static int mt8186_fe_hw_free(struct snd_pcm_substream *substream,
+ struct snd_soc_dai *dai)
+{
+ int ret;
+
+ ret = mtk_afe_fe_hw_free(substream, dai);
+ if (ret)
+ goto exit;
+
+ /* wait for some platform related operation */
+exit:
+ return ret;
+}
+
+static int mt8186_fe_trigger(struct snd_pcm_substream *substream, int cmd,
+ struct snd_soc_dai *dai)
+{
+ struct snd_soc_pcm_runtime *rtd = substream->private_data;
+ struct snd_pcm_runtime * const runtime = substream->runtime;
+ struct mtk_base_afe *afe = snd_soc_dai_get_drvdata(dai);
+ struct mt8186_afe_private *afe_priv = afe->platform_priv;
+ int id = asoc_rtd_to_cpu(rtd, 0)->id;
+ struct mtk_base_afe_memif *memif = &afe->memif[id];
+ int irq_id = memif->irq_usage;
+ struct mtk_base_afe_irq *irqs = &afe->irqs[irq_id];
+ const struct mtk_base_irq_data *irq_data = irqs->irq_data;
+ unsigned int counter = runtime->period_size;
+ unsigned int rate = runtime->rate;
+ int fs;
+ int ret;
+
+ dev_dbg(afe->dev, "%s(), %s cmd %d, irq_id %d\n",
+ __func__, memif->data->name, cmd, irq_id);
+
+ switch (cmd) {
+ case SNDRV_PCM_TRIGGER_START:
+ case SNDRV_PCM_TRIGGER_RESUME:
+ ret = mtk_memif_set_enable(afe, id);
+ if (ret) {
+ dev_err(afe->dev, "%s(), error, id %d, memif enable, ret %d\n",
+ __func__, id, ret);
+ return ret;
+ }
+
+ /*
+ * for small latency record
+ * ul memif need read some data before irq enable
+ */
+ if (substream->stream == SNDRV_PCM_STREAM_CAPTURE &&
+ ((runtime->period_size * 1000) / rate <= 10))
+ udelay(300);
+
+ /* set irq counter */
+ if (afe_priv->irq_cnt[id] > 0)
+ counter = afe_priv->irq_cnt[id];
+
+ regmap_update_bits(afe->regmap, irq_data->irq_cnt_reg,
+ irq_data->irq_cnt_maskbit
+ << irq_data->irq_cnt_shift,
+ counter << irq_data->irq_cnt_shift);
+
+ /* set irq fs */
+ fs = afe->irq_fs(substream, runtime->rate);
+ if (fs < 0)
+ return -EINVAL;
+
+ regmap_update_bits(afe->regmap, irq_data->irq_fs_reg,
+ irq_data->irq_fs_maskbit
+ << irq_data->irq_fs_shift,
+ fs << irq_data->irq_fs_shift);
+
+ /* enable interrupt */
+ if (runtime->stop_threshold != ~(0U))
+ regmap_update_bits(afe->regmap,
+ irq_data->irq_en_reg,
+ 1 << irq_data->irq_en_shift,
+ 1 << irq_data->irq_en_shift);
+ return 0;
+ case SNDRV_PCM_TRIGGER_STOP:
+ case SNDRV_PCM_TRIGGER_SUSPEND:
+ if (afe_priv->xrun_assert[id] > 0) {
+ if (substream->stream == SNDRV_PCM_STREAM_CAPTURE) {
+ int avail = snd_pcm_capture_avail(runtime);
+
+ if (avail >= runtime->buffer_size) {
+ dev_err(afe->dev, "%s(), id %d, xrun assert\n",
+ __func__, id);
+ }
+ }
+ } > +
+ ret = mtk_memif_set_disable(afe, id);
+ if (ret)
+ dev_err(afe->dev, "%s(), error, id %d, memif enable, ret %d\n",
+ __func__, id, ret);
+
+ /* disable interrupt */
+ if (runtime->stop_threshold != ~(0U))
+ regmap_update_bits(afe->regmap,
+ irq_data->irq_en_reg,
+ 1 << irq_data->irq_en_shift,
+ 0 << irq_data->irq_en_shift);
+
+ /* clear pending IRQ */
+ regmap_write(afe->regmap, irq_data->irq_clr_reg,
+ 1 << irq_data->irq_clr_shift);
+ return ret;
+ default:
+ return -EINVAL;
+ }
+}
+
+
+static int mt8186_irq_cnt1_set(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_soc_component *cmpnt = snd_soc_kcontrol_component(kcontrol);
+ struct mtk_base_afe *afe = snd_soc_component_get_drvdata(cmpnt);
+ struct mt8186_afe_private *afe_priv = afe->platform_priv;
+ int memif_num = MT8186_PRIMARY_MEMIF;
+ struct mtk_base_afe_memif *memif = &afe->memif[memif_num];
+ int irq_id = memif->irq_usage;
+ int irq_cnt = afe_priv->irq_cnt[memif_num];
+
+ dev_dbg(afe->dev, "%s(), irq_id %d, irq_cnt = %d, value = %ld\n",
+ __func__, irq_id, irq_cnt, ucontrol->value.integer.value[0]);
+
+ if (irq_cnt == ucontrol->value.integer.value[0])
+ return 0;
+
+ irq_cnt = ucontrol->value.integer.value[0];
+ afe_priv->irq_cnt[memif_num] = irq_cnt;
+
+ if (pm_runtime_status_suspended(afe->dev) || irq_id < 0) {
+ dev_info(afe->dev, "%s(), suspended || irq_id %d, not set\n",
+ __func__, irq_id);
+ } else {
+ struct mtk_base_afe_irq *irqs = &afe->irqs[irq_id];
+ const struct mtk_base_irq_data *irq_data = irqs->irq_data;
+
+ regmap_update_bits(afe->regmap, irq_data->irq_cnt_reg,
+ irq_data->irq_cnt_maskbit
+ << irq_data->irq_cnt_shift,
+ irq_cnt << irq_data->irq_cnt_shift);
+ }
+
+ return 1;
+}
+
+static int mt8186_irq_cnt2_get(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_soc_component *cmpnt = snd_soc_kcontrol_component(kcontrol);
+ struct mtk_base_afe *afe = snd_soc_component_get_drvdata(cmpnt);
+ struct mt8186_afe_private *afe_priv = afe->platform_priv;
+
+ ucontrol->value.integer.value[0] =
+ afe_priv->irq_cnt[MT8186_RECORD_MEMIF];
+
+ return 0;
+}
+
+static int mt8186_irq_cnt2_set(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_soc_component *cmpnt = snd_soc_kcontrol_component(kcontrol);
+ struct mtk_base_afe *afe = snd_soc_component_get_drvdata(cmpnt);
+ struct mt8186_afe_private *afe_priv = afe->platform_priv;
+ int memif_num = MT8186_RECORD_MEMIF;
+ struct mtk_base_afe_memif *memif = &afe->memif[memif_num];
+ int irq_id = memif->irq_usage;
+ int irq_cnt = afe_priv->irq_cnt[memif_num];
+
+ dev_dbg(afe->dev, "%s(), irq_id %d, irq_cnt = %d, value = %ld\n",
+ __func__, irq_id, irq_cnt, ucontrol->value.integer.value[0]);
+
+ if (irq_cnt == ucontrol->value.integer.value[0])
+ return 0;
+
+ irq_cnt = ucontrol->value.integer.value[0];
+ afe_priv->irq_cnt[memif_num] = irq_cnt;
+
+ if (pm_runtime_status_suspended(afe->dev) || irq_id < 0) {
+ dev_info(afe->dev, "%s(), suspended || irq_id %d, not set\n",
+ __func__, irq_id);
+ } else {
+ struct mtk_base_afe_irq *irqs = &afe->irqs[irq_id];
+ const struct mtk_base_irq_data *irq_data = irqs->irq_data;
+
+ regmap_update_bits(afe->regmap, irq_data->irq_cnt_reg,
+ irq_data->irq_cnt_maskbit
+ << irq_data->irq_cnt_shift,
+ irq_cnt << irq_data->irq_cnt_shift);
+ }
+
+ return 1;
+}
+
+
+static int mt8186_afe_pcm_dev_probe(struct platform_device *pdev)
+{
+ struct mtk_base_afe *afe;
+ struct mt8186_afe_private *afe_priv;
+ struct resource *res;
+ struct reset_control *rstc;
+ struct device *dev = &pdev->dev;
+ int i, ret, irq_id;
+
+ ret = dma_set_mask_and_coherent(dev, DMA_BIT_MASK(34));
+ if (ret)
+ return ret;
+
+ afe = devm_kzalloc(dev, sizeof(*afe), GFP_KERNEL);
+ if (!afe)
+ return -ENOMEM;
+ platform_set_drvdata(pdev, afe);
+
+ afe->platform_priv = devm_kzalloc(dev, sizeof(*afe_priv), GFP_KERNEL);
+ if (!afe->platform_priv)
+ return -ENOMEM;
+
+ afe_priv = afe->platform_priv;
+ afe->dev = &pdev->dev;
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ afe->base_addr = devm_ioremap_resource(&pdev->dev, res);
+ if (IS_ERR(afe->base_addr))
+ return PTR_ERR(afe->base_addr);
+
+ /* init audio related clock */
+ ret = mt8186_init_clock(afe);
+ if (ret) {
+ dev_err(dev, "init clock error, ret %d\n", ret);
+ return ret;
+ }
+
+ /* init memif */
+ afe->memif_32bit_supported = 0;
+ afe->memif_size = MT8186_MEMIF_NUM;
+ afe->memif = devm_kcalloc(dev, afe->memif_size, sizeof(*afe->memif),
+ GFP_KERNEL);
+
+ if (!afe->memif)
+ return -ENOMEM;
+
+ for (i = 0; i < afe->memif_size; i++) {
+ afe->memif[i].data = &memif_data[i];
+ afe->memif[i].irq_usage = memif_irq_usage[i];
+ afe->memif[i].const_irq = 1;
+ }
+
+ mutex_init(&afe->irq_alloc_lock); /* needed when dynamic irq */
+
+ /* init irq */
+ afe->irqs_size = MT8186_IRQ_NUM;
+ afe->irqs = devm_kcalloc(dev, afe->irqs_size, sizeof(*afe->irqs),
+ GFP_KERNEL);
+
+ if (!afe->irqs)
+ return -ENOMEM;
+
+ for (i = 0; i < afe->irqs_size; i++)
+ afe->irqs[i].irq_data = &irq_data[i];
+
+ /* request irq */
+ irq_id = platform_get_irq(pdev, 0);
+ if (irq_id <= 0)
+ return dev_err_probe(dev, irq_id < 0 ? irq_id : -ENXIO,
+ "no irq found");
+
+ ret = devm_request_irq(dev, irq_id, mt8186_afe_irq_handler,
+ IRQF_TRIGGER_NONE,
+ "Afe_ISR_Handle", (void *)afe);
+ if (ret)
+ return dev_err_probe(dev, ret, "could not request_irq for Afe_ISR_Handle\n");
+
+ ret = enable_irq_wake(irq_id);
+ if (ret < 0)
+ return dev_err_probe(dev, ret, "enable_irq_wake %d\n", irq_id);
+
+ /* init sub_dais */
+ INIT_LIST_HEAD(&afe->sub_dais);
+
+ for (i = 0; i < ARRAY_SIZE(dai_register_cbs); i++) {
+ ret = dai_register_cbs[i](afe);
+ if (ret)
+ return dev_err_probe(dev, ret, "dai register i %d fail\n", i);
+ }
+
+ /* init dai_driver and component_driver */
+ ret = mtk_afe_combine_sub_dai(afe);
+ if (ret)
+ return dev_err_probe(dev, ret, "mtk_afe_combine_sub_dai fail\n");
+
+ /* reset controller to reset audio regs before regmap cache */
+ rstc = devm_reset_control_get_exclusive(dev, "audiosys");
+ if (IS_ERR(rstc))
+ return dev_err_probe(dev, PTR_ERR(rstc), "could not get audiosys reset\n");
+
+ ret = reset_control_reset(rstc);
+ if (ret)
+ return dev_err_probe(dev, ret, "failed to trigger audio reset\n");
+
+ /* enable clock for regcache get default value from hw */
+ afe_priv->pm_runtime_bypass_reg_ctl = true;
+ pm_runtime_enable(dev);
+ ret = pm_runtime_get_sync(dev);
+ if (ret) {
+ dev_err(dev, "failed to resume device: %d\n", ret);
+ goto err_pm_disable;
+ }
+
+ afe->regmap = devm_regmap_init_mmio(dev, afe->base_addr,
+ &mt8186_afe_regmap_config);
+ if (IS_ERR(afe->regmap)) {
+ ret = PTR_ERR(afe->regmap);
+ goto err_pm_disable;
+ }
+
+ /* others */
+ afe->mtk_afe_hardware = &mt8186_afe_hardware;
+ afe->memif_fs = mt8186_memif_fs;
+ afe->irq_fs = mt8186_irq_fs;
+ afe->get_dai_fs = mt8186_get_dai_fs;
+ afe->get_memif_pbuf_size = mt8186_get_memif_pbuf_size;
+
+ afe->runtime_resume = mt8186_afe_runtime_resume;
+ afe->runtime_suspend = mt8186_afe_runtime_suspend;
+
+ /* register platform */
+ dev_info(dev, "%s(), devm_snd_soc_register_component\n", __func__);
+
+ ret = devm_snd_soc_register_component(dev,
+ &mt8186_afe_component,
+ afe->dai_drivers,
+ afe->num_dai_drivers);
+ if (ret) {
+ dev_err(dev, "err_dai_component\n");
+ goto err_pm_disable;
+ }
+
+ ret = pm_runtime_put_sync(dev);
+ if (ret) {
+ pm_runtime_get_noresume(dev);
+ dev_err(dev, "failed to suspend device: %d\n", ret);
+ goto err_pm_disable;
+ }
+ afe_priv->pm_runtime_bypass_reg_ctl = false;
+
+ regcache_cache_only(afe->regmap, true);
+ regcache_mark_dirty(afe->regmap);
+
+ return 0;
+
+err_pm_disable:
+ pm_runtime_put_noidle(dev);
+ pm_runtime_set_suspended(dev);
+ pm_runtime_disable(dev);
+
+ return ret;
+}
+
+static int mt8186_afe_pcm_dev_remove(struct platform_device *pdev)
+{
+ struct mtk_base_afe *afe = platform_get_drvdata(pdev);
+
+ pm_runtime_disable(&pdev->dev);