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author | Ryder Lee <ryder.lee@mediatek.com> | 2018-04-25 06:19:57 +0200 |
---|---|---|
committer | Mark Brown <broonie@kernel.org> | 2018-04-26 16:09:02 +0200 |
commit | bfdc56e54890fd6be05f14c9441c540e649468f7 (patch) | |
tree | 5ff668098eb07f7f6544e1098933390187b9fcf9 /sound/soc/mediatek/mt2701/mt2701-afe-pcm.c | |
parent | ASoC: mediatek: Add MTK_STREAM_NUM to mtk-base-afe.h (diff) | |
download | linux-bfdc56e54890fd6be05f14c9441c540e649468f7.tar.xz linux-bfdc56e54890fd6be05f14c9441c540e649468f7.zip |
ASoC: mediatek: add MT7622 AFE support
This patch adds support for the MT7622 AFE which reuses MT2701 driver.
We also introduce the 'struct mt2701_soc_variants' to differentiate
between the SoC generations as there might be other (existing or future)
chips that use the same binding and driver, then being a little more
abstract could help in the long run.
Cc: Jia Zeng <jia.zeng@mediatek.com>
Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
Reviewed-by: Garlic Tseng <garlic.tseng@mediatek.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound/soc/mediatek/mt2701/mt2701-afe-pcm.c')
-rw-r--r-- | sound/soc/mediatek/mt2701/mt2701-afe-pcm.c | 49 |
1 files changed, 38 insertions, 11 deletions
diff --git a/sound/soc/mediatek/mt2701/mt2701-afe-pcm.c b/sound/soc/mediatek/mt2701/mt2701-afe-pcm.c index 99094a574213..21652db6e6a3 100644 --- a/sound/soc/mediatek/mt2701/mt2701-afe-pcm.c +++ b/sound/soc/mediatek/mt2701/mt2701-afe-pcm.c @@ -21,6 +21,7 @@ #include <linux/mfd/syscon.h> #include <linux/of.h> #include <linux/of_address.h> +#include <linux/of_device.h> #include <linux/pm_runtime.h> #include "mt2701-afe-common.h" @@ -37,7 +38,7 @@ static const struct snd_pcm_hardware mt2701_afe_hardware = { .period_bytes_max = 1024 * 256, .periods_min = 4, .periods_max = 1024, - .buffer_bytes_max = 1024 * 1024 * 16, + .buffer_bytes_max = 1024 * 1024, .fifo_size = 0, }; @@ -69,9 +70,10 @@ static const struct mt2701_afe_rate mt2701_afe_i2s_rates[] = { static int mt2701_dai_num_to_i2s(struct mtk_base_afe *afe, int num) { + struct mt2701_afe_private *afe_priv = afe->platform_priv; int val = num - MT2701_IO_I2S; - if (val < 0 || val >= MT2701_I2S_NUM) { + if (val < 0 || val >= afe_priv->soc->i2s_num) { dev_err(afe->dev, "%s, num not available, num %d, val %d\n", __func__, num, val); return -EINVAL; @@ -94,12 +96,14 @@ static int mt2701_afe_i2s_startup(struct snd_pcm_substream *substream, struct snd_soc_dai *dai) { struct mtk_base_afe *afe = snd_soc_dai_get_drvdata(dai); + struct mt2701_afe_private *afe_priv = afe->platform_priv; int i2s_num = mt2701_dai_num_to_i2s(afe, dai->id); + bool mode = afe_priv->soc->has_one_heart_mode; if (i2s_num < 0) return i2s_num; - return mt2701_afe_enable_mclk(afe, i2s_num); + return mt2701_afe_enable_mclk(afe, mode ? 1 : i2s_num); } static int mt2701_afe_i2s_path_disable(struct mtk_base_afe *afe, @@ -130,6 +134,7 @@ static void mt2701_afe_i2s_shutdown(struct snd_pcm_substream *substream, struct mt2701_afe_private *afe_priv = afe->platform_priv; int i2s_num = mt2701_dai_num_to_i2s(afe, dai->id); struct mt2701_i2s_path *i2s_path; + bool mode = afe_priv->soc->has_one_heart_mode; if (i2s_num < 0) return; @@ -149,7 +154,7 @@ static void mt2701_afe_i2s_shutdown(struct snd_pcm_substream *substream, exit: /* disable mclk */ - mt2701_afe_disable_mclk(afe, i2s_num); + mt2701_afe_disable_mclk(afe, mode ? 1 : i2s_num); } static int mt2701_i2s_path_enable(struct mtk_base_afe *afe, @@ -157,6 +162,7 @@ static int mt2701_i2s_path_enable(struct mtk_base_afe *afe, int stream_dir, int rate) { const struct mt2701_i2s_data *i2s_data = i2s_path->i2s_data[stream_dir]; + struct mt2701_afe_private *afe_priv = afe->platform_priv; int reg, fs, w_len = 1; /* now we support bck 64bits only */ unsigned int mask, val; @@ -180,6 +186,10 @@ static int mt2701_i2s_path_enable(struct mtk_base_afe *afe, val |= ASYS_I2S_IN_PHASE_FIX; reg = ASMI_TIMING_CON1; } else { + if (afe_priv->soc->has_one_heart_mode) { + mask |= ASYS_I2S_CON_ONE_HEART_MODE; + val |= ASYS_I2S_CON_ONE_HEART_MODE; + } reg = ASMO_TIMING_CON1; } @@ -212,6 +222,7 @@ static int mt2701_afe_i2s_prepare(struct snd_pcm_substream *substream, struct mt2701_afe_private *afe_priv = afe->platform_priv; int ret, i2s_num = mt2701_dai_num_to_i2s(afe, dai->id); struct mt2701_i2s_path *i2s_path; + bool mode = afe_priv->soc->has_one_heart_mode; if (i2s_num < 0) return i2s_num; @@ -221,7 +232,7 @@ static int mt2701_afe_i2s_prepare(struct snd_pcm_substream *substream, if (i2s_path->occupied[substream->stream]) return -EBUSY; - ret = mt2701_mclk_configuration(afe, i2s_num); + ret = mt2701_mclk_configuration(afe, mode ? 1 : i2s_num); if (ret) return ret; @@ -244,19 +255,18 @@ static int mt2701_afe_i2s_set_sysclk(struct snd_soc_dai *dai, int clk_id, struct mtk_base_afe *afe = snd_soc_dai_get_drvdata(dai); struct mt2701_afe_private *afe_priv = afe->platform_priv; int i2s_num = mt2701_dai_num_to_i2s(afe, dai->id); + bool mode = afe_priv->soc->has_one_heart_mode; if (i2s_num < 0) return i2s_num; /* mclk */ if (dir == SND_SOC_CLOCK_IN) { - dev_warn(dai->dev, - "%s() warning: mt2701 doesn't support mclk input\n", - __func__); + dev_warn(dai->dev, "The SoCs doesn't support mclk input\n"); return -EINVAL; } - afe_priv->i2s_path[i2s_num].mclk_rate = freq; + afe_priv->i2s_path[mode ? 1 : i2s_num].mclk_rate = freq; return 0; } @@ -1347,9 +1357,16 @@ static int mt2701_afe_pcm_dev_probe(struct platform_device *pdev) return -ENOMEM; afe_priv = afe->platform_priv; + afe_priv->soc = of_device_get_match_data(&pdev->dev); afe->dev = &pdev->dev; dev = afe->dev; + afe_priv->i2s_path = devm_kzalloc(dev, afe_priv->soc->i2s_num * + sizeof(struct mt2701_i2s_path), + GFP_KERNEL); + if (!afe_priv->i2s_path) + return -ENOMEM; + irq_id = platform_get_irq_byname(pdev, "asys"); if (irq_id < 0) { dev_err(dev, "unable to get ASYS IRQ\n"); @@ -1394,7 +1411,7 @@ static int mt2701_afe_pcm_dev_probe(struct platform_device *pdev) afe->irqs[i].irq_data = &irq_data[i]; /* I2S initialize */ - for (i = 0; i < MT2701_I2S_NUM; i++) { + for (i = 0; i < afe_priv->soc->i2s_num; i++) { afe_priv->i2s_path[i].i2s_data[SNDRV_PCM_STREAM_PLAYBACK] = &mt2701_i2s_data[i][SNDRV_PCM_STREAM_PLAYBACK]; afe_priv->i2s_path[i].i2s_data[SNDRV_PCM_STREAM_CAPTURE] = @@ -1459,8 +1476,18 @@ static int mt2701_afe_pcm_dev_remove(struct platform_device *pdev) return 0; } +static const struct mt2701_soc_variants mt2701_soc_v1 = { + .i2s_num = 4, +}; + +static const struct mt2701_soc_variants mt2701_soc_v2 = { + .has_one_heart_mode = true, + .i2s_num = 4, +}; + static const struct of_device_id mt2701_afe_pcm_dt_match[] = { - { .compatible = "mediatek,mt2701-audio", }, + { .compatible = "mediatek,mt2701-audio", .data = &mt2701_soc_v1 }, + { .compatible = "mediatek,mt7622-audio", .data = &mt2701_soc_v2 }, {}, }; MODULE_DEVICE_TABLE(of, mt2701_afe_pcm_dt_match); |