diff options
Diffstat (limited to 'sound/soc/mediatek/mt8188/mt8188-afe-pcm.c')
| -rw-r--r-- | sound/soc/mediatek/mt8188/mt8188-afe-pcm.c | 113 |
1 files changed, 78 insertions, 35 deletions
diff --git a/sound/soc/mediatek/mt8188/mt8188-afe-pcm.c b/sound/soc/mediatek/mt8188/mt8188-afe-pcm.c index bcf7025886df..6a24b339444b 100644 --- a/sound/soc/mediatek/mt8188/mt8188-afe-pcm.c +++ b/sound/soc/mediatek/mt8188/mt8188-afe-pcm.c @@ -17,6 +17,7 @@ #include <linux/of_address.h> #include <linux/of_platform.h> #include <linux/pm_runtime.h> +#include <linux/soc/mediatek/infracfg.h> #include <linux/reset.h> #include <sound/pcm_params.h> #include "mt8188-afe-common.h" @@ -1898,10 +1899,6 @@ static const struct snd_kcontrol_new mt8188_memif_controls[] = { MT8188_AFE_MEMIF_UL10), }; -static const struct snd_soc_component_driver mt8188_afe_pcm_dai_component = { - .name = "mt8188-afe-pcm-dai", -}; - static const struct mtk_base_memif_data memif_data[MT8188_AFE_MEMIF_NUM] = { [MT8188_AFE_MEMIF_DL2] = { .name = "DL2", @@ -3137,14 +3134,69 @@ static int mt8188_afe_parse_of(struct mtk_base_afe *afe, return 0; } +#define MT8188_DELAY_US 10 +#define MT8188_TIMEOUT_US USEC_PER_SEC + +static int bus_protect_enable(struct regmap *regmap) +{ + int ret; + u32 val; + u32 mask; + + val = 0; + mask = MT8188_TOP_AXI_PROT_EN_2_AUDIO_STEP1; + regmap_write(regmap, MT8188_TOP_AXI_PROT_EN_2_SET, mask); + + ret = regmap_read_poll_timeout(regmap, MT8188_TOP_AXI_PROT_EN_2_STA, + val, (val & mask) == mask, + MT8188_DELAY_US, MT8188_TIMEOUT_US); + if (ret) + return ret; + + val = 0; + mask = MT8188_TOP_AXI_PROT_EN_2_AUDIO_STEP2; + regmap_write(regmap, MT8188_TOP_AXI_PROT_EN_2_SET, mask); + + ret = regmap_read_poll_timeout(regmap, MT8188_TOP_AXI_PROT_EN_2_STA, + val, (val & mask) == mask, + MT8188_DELAY_US, MT8188_TIMEOUT_US); + return ret; +} + +static int bus_protect_disable(struct regmap *regmap) +{ + int ret; + u32 val; + u32 mask; + + val = 0; + mask = MT8188_TOP_AXI_PROT_EN_2_AUDIO_STEP2; + regmap_write(regmap, MT8188_TOP_AXI_PROT_EN_2_CLR, mask); + + ret = regmap_read_poll_timeout(regmap, MT8188_TOP_AXI_PROT_EN_2_STA, + val, !(val & mask), + MT8188_DELAY_US, MT8188_TIMEOUT_US); + if (ret) + return ret; + + val = 0; + mask = MT8188_TOP_AXI_PROT_EN_2_AUDIO_STEP1; + regmap_write(regmap, MT8188_TOP_AXI_PROT_EN_2_CLR, mask); + + ret = regmap_read_poll_timeout(regmap, MT8188_TOP_AXI_PROT_EN_2_STA, + val, !(val & mask), + MT8188_DELAY_US, MT8188_TIMEOUT_US); + return ret; +} + static int mt8188_afe_pcm_dev_probe(struct platform_device *pdev) { struct mtk_base_afe *afe; struct mt8188_afe_private *afe_priv; struct device *dev; - int i, irq_id, ret; - struct snd_soc_component *component; struct reset_control *rstc; + struct regmap *infra_ao; + int i, irq_id, ret; ret = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(33)); if (ret) @@ -3168,18 +3220,37 @@ static int mt8188_afe_pcm_dev_probe(struct platform_device *pdev) return dev_err_probe(dev, PTR_ERR(afe->base_addr), "AFE base_addr not found\n"); + infra_ao = syscon_regmap_lookup_by_phandle(dev->of_node, + "mediatek,infracfg"); + if (IS_ERR(infra_ao)) + return dev_err_probe(dev, PTR_ERR(infra_ao), + "%s() Cannot find infra_ao controller\n", + __func__); + /* 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 = bus_protect_enable(infra_ao); + if (ret) { + dev_err(dev, "bus_protect_enable failed\n"); + return ret; + } + ret = reset_control_reset(rstc); if (ret) { dev_err(dev, "failed to trigger audio reset:%d\n", ret); return ret; } + ret = bus_protect_disable(infra_ao); + if (ret) { + dev_err(dev, "bus_protect_disable failed\n"); + return ret; + } + /* initial audio related clock */ ret = mt8188_afe_init_clock(afe); if (ret) @@ -3276,34 +3347,12 @@ static int mt8188_afe_pcm_dev_probe(struct platform_device *pdev) /* register component */ ret = devm_snd_soc_register_component(dev, &mt8188_afe_component, - NULL, 0); + afe->dai_drivers, afe->num_dai_drivers); if (ret) { dev_warn(dev, "err_platform\n"); goto err_pm_put; } - component = devm_kzalloc(&pdev->dev, sizeof(*component), GFP_KERNEL); - if (!component) { - ret = -ENOMEM; - goto err_pm_put; - } - - ret = snd_soc_component_initialize(component, - &mt8188_afe_pcm_dai_component, - &pdev->dev); - if (ret) - goto err_pm_put; -#ifdef CONFIG_DEBUG_FS - component->debugfs_prefix = "pcm"; -#endif - ret = snd_soc_add_component(component, - afe->dai_drivers, - afe->num_dai_drivers); - if (ret) { - dev_warn(dev, "err_add_component\n"); - goto err_pm_put; - } - mt8188_afe_init_registers(afe); pm_runtime_put_sync(&pdev->dev); @@ -3319,11 +3368,6 @@ err_pm_put: return ret; } -static void mt8188_afe_pcm_dev_remove(struct platform_device *pdev) -{ - snd_soc_unregister_component(&pdev->dev); -} - static const struct of_device_id mt8188_afe_pcm_dt_match[] = { { .compatible = "mediatek,mt8188-afe", }, {}, @@ -3342,7 +3386,6 @@ static struct platform_driver mt8188_afe_pcm_driver = { .pm = &mt8188_afe_pm_ops, }, .probe = mt8188_afe_pcm_dev_probe, - .remove_new = mt8188_afe_pcm_dev_remove, }; module_platform_driver(mt8188_afe_pcm_driver); |