diff options
10 files changed, 200 insertions, 94 deletions
diff --git a/Documentation/devicetree/bindings/sound/mediatek,mt8173-afe-pcm.yaml b/Documentation/devicetree/bindings/sound/mediatek,mt8173-afe-pcm.yaml new file mode 100644 index 000000000000..d8993b5d457a --- /dev/null +++ b/Documentation/devicetree/bindings/sound/mediatek,mt8173-afe-pcm.yaml @@ -0,0 +1,98 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/sound/mediatek,mt8173-afe-pcm.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Mediatek AFE PCM controller for MT8173 + +maintainers: + - Trevor Wu <trevor.wu@mediatek.com> + +properties: + compatible: + const: mediatek,mt8173-afe-pcm + + reg: + maxItems: 1 + + interrupts: + maxItems: 1 + + clocks: + items: + - description: audio infra sys clock + - description: audio top mux + - description: audio intbus mux + - description: apll1 clock + - description: apll2 clock + - description: i2s0 mclk mux + - description: i2s1 mclk mux + - description: i2s2 mclk mux + - description: i2s3 mclk mux + - description: i2s3 bclk mux + + clock-names: + items: + - const: infra_sys_audio_clk + - const: top_pdn_audio + - const: top_pdn_aud_intbus + - const: bck0 + - const: bck1 + - const: i2s0_m + - const: i2s1_m + - const: i2s2_m + - const: i2s3_m + - const: i2s3_b + + power-domains: + maxItems: 1 + + memory-region: + description: memory region for audio DMA buffers + maxItems: 1 + +required: + - compatible + - reg + - interrupts + - clocks + - clock-names + - power-domains + +additionalProperties: false + +examples: + - | + #include <dt-bindings/clock/mt8173-clk.h> + #include <dt-bindings/interrupt-controller/arm-gic.h> + #include <dt-bindings/interrupt-controller/irq.h> + #include <dt-bindings/power/mt8173-power.h> + + mt8173-afe-pcm@11220000 { + compatible = "mediatek,mt8173-afe-pcm"; + reg = <0x11220000 0x1000>; + interrupts = <GIC_SPI 134 IRQ_TYPE_EDGE_FALLING>; + power-domains = <&spm MT8173_POWER_DOMAIN_AUDIO>; + clocks = <&infracfg CLK_INFRA_AUDIO>, + <&topckgen CLK_TOP_AUDIO_SEL>, + <&topckgen CLK_TOP_AUD_INTBUS_SEL>, + <&topckgen CLK_TOP_APLL1_DIV0>, + <&topckgen CLK_TOP_APLL2_DIV0>, + <&topckgen CLK_TOP_I2S0_M_SEL>, + <&topckgen CLK_TOP_I2S1_M_SEL>, + <&topckgen CLK_TOP_I2S2_M_SEL>, + <&topckgen CLK_TOP_I2S3_M_SEL>, + <&topckgen CLK_TOP_I2S3_B_SEL>; + clock-names = "infra_sys_audio_clk", + "top_pdn_audio", + "top_pdn_aud_intbus", + "bck0", + "bck1", + "i2s0_m", + "i2s1_m", + "i2s2_m", + "i2s3_m", + "i2s3_b"; + memory-region = <&afe_dma_mem>; + }; diff --git a/Documentation/devicetree/bindings/sound/mt8186-afe-pcm.yaml b/Documentation/devicetree/bindings/sound/mt8186-afe-pcm.yaml index 7fe85b08f9df..f5af2cf18158 100644 --- a/Documentation/devicetree/bindings/sound/mt8186-afe-pcm.yaml +++ b/Documentation/devicetree/bindings/sound/mt8186-afe-pcm.yaml @@ -25,6 +25,10 @@ properties: reset-names: const: audiosys + memory-region: + description: memory region for audio DMA buffers + maxItems: 1 + mediatek,apmixedsys: $ref: /schemas/types.yaml#/definitions/phandle description: The phandle of the mediatek apmixedsys controller @@ -170,6 +174,7 @@ examples: "top_apll12_div_tdm", "top_mux_audio_h", "top_clk26m_clk"; + memory-region = <&afe_dma_mem>; }; ... diff --git a/Documentation/devicetree/bindings/sound/mt8192-afe-pcm.yaml b/Documentation/devicetree/bindings/sound/mt8192-afe-pcm.yaml index 064ef172bef4..8ddf49b0040d 100644 --- a/Documentation/devicetree/bindings/sound/mt8192-afe-pcm.yaml +++ b/Documentation/devicetree/bindings/sound/mt8192-afe-pcm.yaml @@ -23,6 +23,10 @@ properties: reset-names: const: audiosys + memory-region: + description: memory region for audio DMA buffers + maxItems: 1 + mediatek,apmixedsys: $ref: /schemas/types.yaml#/definitions/phandle description: The phandle of the mediatek apmixedsys controller @@ -95,6 +99,7 @@ examples: "aud_dac_predis_clk", "aud_infra_clk", "aud_infra_26m_clk"; + memory-region = <&afe_dma_mem>; }; ... diff --git a/Documentation/devicetree/bindings/sound/mtk-afe-pcm.txt b/Documentation/devicetree/bindings/sound/mtk-afe-pcm.txt deleted file mode 100644 index e302c7f43b95..000000000000 --- a/Documentation/devicetree/bindings/sound/mtk-afe-pcm.txt +++ /dev/null @@ -1,45 +0,0 @@ -Mediatek AFE PCM controller - -Required properties: -- compatible = "mediatek,mt8173-afe-pcm"; -- reg: register location and size -- interrupts: Should contain AFE interrupt -- clock-names: should have these clock names: - "infra_sys_audio_clk", - "top_pdn_audio", - "top_pdn_aud_intbus", - "bck0", - "bck1", - "i2s0_m", - "i2s1_m", - "i2s2_m", - "i2s3_m", - "i2s3_b"; - -Example: - - afe: mt8173-afe-pcm@11220000 { - compatible = "mediatek,mt8173-afe-pcm"; - reg = <0 0x11220000 0 0x1000>; - interrupts = <GIC_SPI 134 IRQ_TYPE_EDGE_FALLING>; - clocks = <&infracfg INFRA_AUDIO>, - <&topckgen TOP_AUDIO_SEL>, - <&topckgen TOP_AUD_INTBUS_SEL>, - <&topckgen TOP_APLL1_DIV0>, - <&topckgen TOP_APLL2_DIV0>, - <&topckgen TOP_I2S0_M_CK_SEL>, - <&topckgen TOP_I2S1_M_CK_SEL>, - <&topckgen TOP_I2S2_M_CK_SEL>, - <&topckgen TOP_I2S3_M_CK_SEL>, - <&topckgen TOP_I2S3_B_CK_SEL>; - clock-names = "infra_sys_audio_clk", - "top_pdn_audio", - "top_pdn_aud_intbus", - "bck0", - "bck1", - "i2s0_m", - "i2s1_m", - "i2s2_m", - "i2s3_m", - "i2s3_b"; - }; diff --git a/sound/soc/mediatek/common/mtk-afe-platform-driver.c b/sound/soc/mediatek/common/mtk-afe-platform-driver.c index 6b6330583941..70fd05d5ff48 100644 --- a/sound/soc/mediatek/common/mtk-afe-platform-driver.c +++ b/sound/soc/mediatek/common/mtk-afe-platform-driver.c @@ -120,7 +120,9 @@ int mtk_afe_pcm_new(struct snd_soc_component *component, struct mtk_base_afe *afe = snd_soc_component_get_drvdata(component); size = afe->mtk_afe_hardware->buffer_bytes_max; - snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_DEV, afe->dev, 0, size); + snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_DEV, afe->dev, + afe->preallocate_buffers ? size : 0, + size); return 0; } diff --git a/sound/soc/mediatek/common/mtk-base-afe.h b/sound/soc/mediatek/common/mtk-base-afe.h index f51578b6c50a..a406f2e3e7a8 100644 --- a/sound/soc/mediatek/common/mtk-base-afe.h +++ b/sound/soc/mediatek/common/mtk-base-afe.h @@ -117,6 +117,7 @@ struct mtk_base_afe { struct mtk_base_afe_irq *irqs; int irqs_size; int memif_32bit_supported; + bool preallocate_buffers; struct list_head sub_dais; struct snd_soc_dai_driver *dai_drivers; diff --git a/sound/soc/mediatek/mt8173/mt8173-afe-pcm.c b/sound/soc/mediatek/mt8173/mt8173-afe-pcm.c index 04ed0cfec174..c0fa623e0b17 100644 --- a/sound/soc/mediatek/mt8173/mt8173-afe-pcm.c +++ b/sound/soc/mediatek/mt8173/mt8173-afe-pcm.c @@ -13,6 +13,7 @@ #include <linux/module.h> #include <linux/of.h> #include <linux/of_address.h> +#include <linux/of_reserved_mem.h> #include <linux/dma-mapping.h> #include <linux/pm_runtime.h> #include <sound/soc.h> @@ -1053,22 +1054,28 @@ static int mt8173_afe_pcm_dev_probe(struct platform_device *pdev) struct mtk_base_afe *afe; struct mt8173_afe_private *afe_priv; struct snd_soc_component *comp_pcm, *comp_hdmi; + struct device *dev = &pdev->dev; - ret = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(33)); + ret = dma_set_mask_and_coherent(dev, DMA_BIT_MASK(33)); if (ret) return ret; - afe = devm_kzalloc(&pdev->dev, sizeof(*afe), GFP_KERNEL); + afe = devm_kzalloc(dev, sizeof(*afe), GFP_KERNEL); if (!afe) return -ENOMEM; - afe->platform_priv = devm_kzalloc(&pdev->dev, sizeof(*afe_priv), - GFP_KERNEL); + afe->platform_priv = devm_kzalloc(dev, sizeof(*afe_priv), GFP_KERNEL); afe_priv = afe->platform_priv; if (!afe_priv) return -ENOMEM; - afe->dev = &pdev->dev; + afe->dev = dev; + + ret = of_reserved_mem_device_init(dev); + if (ret) { + dev_info(dev, "no reserved memory found, pre-allocating buffers instead\n"); + afe->preallocate_buffers = true; + } irq_id = platform_get_irq(pdev, 0); if (irq_id <= 0) @@ -1078,27 +1085,27 @@ static int mt8173_afe_pcm_dev_probe(struct platform_device *pdev) if (IS_ERR(afe->base_addr)) return PTR_ERR(afe->base_addr); - afe->regmap = devm_regmap_init_mmio(&pdev->dev, afe->base_addr, - &mt8173_afe_regmap_config); + afe->regmap = devm_regmap_init_mmio(dev, afe->base_addr, + &mt8173_afe_regmap_config); if (IS_ERR(afe->regmap)) return PTR_ERR(afe->regmap); /* initial audio related clock */ ret = mt8173_afe_init_audio_clk(afe); if (ret) { - dev_err(afe->dev, "mt8173_afe_init_audio_clk fail\n"); + dev_err(dev, "mt8173_afe_init_audio_clk fail\n"); return ret; } /* memif % irq initialize*/ afe->memif_size = MT8173_AFE_MEMIF_NUM; - afe->memif = devm_kcalloc(afe->dev, afe->memif_size, + afe->memif = devm_kcalloc(dev, afe->memif_size, sizeof(*afe->memif), GFP_KERNEL); if (!afe->memif) return -ENOMEM; afe->irqs_size = MT8173_AFE_IRQ_NUM; - afe->irqs = devm_kcalloc(afe->dev, afe->irqs_size, + afe->irqs = devm_kcalloc(dev, afe->irqs_size, sizeof(*afe->irqs), GFP_KERNEL); if (!afe->irqs) return -ENOMEM; @@ -1117,9 +1124,9 @@ static int mt8173_afe_pcm_dev_probe(struct platform_device *pdev) platform_set_drvdata(pdev, afe); - pm_runtime_enable(&pdev->dev); - if (!pm_runtime_enabled(&pdev->dev)) { - ret = mt8173_afe_runtime_resume(&pdev->dev); + pm_runtime_enable(dev); + if (!pm_runtime_enabled(dev)) { + ret = mt8173_afe_runtime_resume(dev); if (ret) goto err_pm_disable; } @@ -1129,13 +1136,12 @@ static int mt8173_afe_pcm_dev_probe(struct platform_device *pdev) afe->runtime_resume = mt8173_afe_runtime_resume; afe->runtime_suspend = mt8173_afe_runtime_suspend; - ret = devm_snd_soc_register_component(&pdev->dev, - &mtk_afe_pcm_platform, - NULL, 0); + ret = devm_snd_soc_register_component(dev, &mtk_afe_pcm_platform, + NULL, 0); if (ret) goto err_pm_disable; - comp_pcm = devm_kzalloc(&pdev->dev, sizeof(*comp_pcm), GFP_KERNEL); + comp_pcm = devm_kzalloc(dev, sizeof(*comp_pcm), GFP_KERNEL); if (!comp_pcm) { ret = -ENOMEM; goto err_pm_disable; @@ -1143,7 +1149,7 @@ static int mt8173_afe_pcm_dev_probe(struct platform_device *pdev) ret = snd_soc_component_initialize(comp_pcm, &mt8173_afe_pcm_dai_component, - &pdev->dev); + dev); if (ret) goto err_pm_disable; @@ -1157,7 +1163,7 @@ static int mt8173_afe_pcm_dev_probe(struct platform_device *pdev) if (ret) goto err_pm_disable; - comp_hdmi = devm_kzalloc(&pdev->dev, sizeof(*comp_hdmi), GFP_KERNEL); + comp_hdmi = devm_kzalloc(dev, sizeof(*comp_hdmi), GFP_KERNEL); if (!comp_hdmi) { ret = -ENOMEM; goto err_cleanup_components; @@ -1165,7 +1171,7 @@ static int mt8173_afe_pcm_dev_probe(struct platform_device *pdev) ret = snd_soc_component_initialize(comp_hdmi, &mt8173_afe_hdmi_dai_component, - &pdev->dev); + dev); if (ret) goto err_cleanup_components; @@ -1179,30 +1185,32 @@ static int mt8173_afe_pcm_dev_probe(struct platform_device *pdev) if (ret) goto err_cleanup_components; - ret = devm_request_irq(afe->dev, irq_id, mt8173_afe_irq_handler, + ret = devm_request_irq(dev, irq_id, mt8173_afe_irq_handler, 0, "Afe_ISR_Handle", (void *)afe); if (ret) { - dev_err(afe->dev, "could not request_irq\n"); + dev_err(dev, "could not request_irq\n"); goto err_cleanup_components; } - dev_info(&pdev->dev, "MT8173 AFE driver initialized.\n"); + dev_info(dev, "MT8173 AFE driver initialized.\n"); return 0; err_cleanup_components: - snd_soc_unregister_component(&pdev->dev); + snd_soc_unregister_component(dev); err_pm_disable: - pm_runtime_disable(&pdev->dev); + pm_runtime_disable(dev); return ret; } static void mt8173_afe_pcm_dev_remove(struct platform_device *pdev) { - snd_soc_unregister_component(&pdev->dev); + struct device *dev = &pdev->dev; + + snd_soc_unregister_component(dev); - pm_runtime_disable(&pdev->dev); - if (!pm_runtime_status_suspended(&pdev->dev)) - mt8173_afe_runtime_suspend(&pdev->dev); + pm_runtime_disable(dev); + if (!pm_runtime_status_suspended(dev)) + mt8173_afe_runtime_suspend(dev); } static const struct of_device_id mt8173_afe_pcm_dt_match[] = { diff --git a/sound/soc/mediatek/mt8183/mt8183-afe-pcm.c b/sound/soc/mediatek/mt8183/mt8183-afe-pcm.c index e8884354995c..a7fef772760a 100644 --- a/sound/soc/mediatek/mt8183/mt8183-afe-pcm.c +++ b/sound/soc/mediatek/mt8183/mt8183-afe-pcm.c @@ -6,10 +6,12 @@ // Author: KaiChieh Chuang <kaichieh.chuang@mediatek.com> #include <linux/delay.h> +#include <linux/dma-mapping.h> #include <linux/module.h> #include <linux/mfd/syscon.h> #include <linux/of.h> #include <linux/of_address.h> +#include <linux/of_reserved_mem.h> #include <linux/pm_runtime.h> #include <linux/reset.h> @@ -431,6 +433,9 @@ static const struct snd_soc_component_driver mt8183_afe_pcm_dai_component = { .reg_ofs_base = AFE_##_id##_BASE, \ .reg_ofs_cur = AFE_##_id##_CUR, \ .reg_ofs_end = AFE_##_id##_END, \ + .reg_ofs_base_msb = AFE_##_id##_BASE_MSB, \ + .reg_ofs_cur_msb = AFE_##_id##_CUR_MSB, \ + .reg_ofs_end_msb = AFE_##_id##_END_MSB, \ .fs_reg = (_fs_reg), \ .fs_shift = _id##_MODE_SFT, \ .fs_maskbit = _id##_MODE_MASK, \ @@ -462,11 +467,17 @@ static const struct snd_soc_component_driver mt8183_afe_pcm_dai_component = { #define AFE_VUL12_BASE AFE_VUL_D2_BASE #define AFE_VUL12_CUR AFE_VUL_D2_CUR #define AFE_VUL12_END AFE_VUL_D2_END +#define AFE_VUL12_BASE_MSB AFE_VUL_D2_BASE_MSB +#define AFE_VUL12_CUR_MSB AFE_VUL_D2_CUR_MSB +#define AFE_VUL12_END_MSB AFE_VUL_D2_END_MSB #define AWB2_HD_ALIGN_SFT AWB2_ALIGN_SFT #define VUL12_DATA_SFT VUL12_MONO_SFT #define AFE_HDMI_BASE AFE_HDMI_OUT_BASE #define AFE_HDMI_CUR AFE_HDMI_OUT_CUR #define AFE_HDMI_END AFE_HDMI_OUT_END +#define AFE_HDMI_BASE_MSB AFE_HDMI_OUT_BASE_MSB +#define AFE_HDMI_CUR_MSB AFE_HDMI_OUT_CUR_MSB +#define AFE_HDMI_END_MSB AFE_HDMI_OUT_END_MSB static const struct mtk_base_memif_data memif_data[MT8183_MEMIF_NUM] = { MT8183_MEMIF(DL1, AFE_DAC_CON1, AFE_DAC_CON1), @@ -759,23 +770,31 @@ static int mt8183_afe_pcm_dev_probe(struct platform_device *pdev) { struct mtk_base_afe *afe; struct mt8183_afe_private *afe_priv; - struct device *dev; + struct device *dev = &pdev->dev; struct reset_control *rstc; int i, irq_id, ret; - afe = devm_kzalloc(&pdev->dev, sizeof(*afe), GFP_KERNEL); + 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(&pdev->dev, sizeof(*afe_priv), - GFP_KERNEL); + 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; - dev = afe->dev; + afe->dev = dev; + + ret = of_reserved_mem_device_init(dev); + if (ret) { + dev_info(dev, "no reserved memory found, pre-allocating buffers instead\n"); + afe->preallocate_buffers = true; + } /* initial audio related clock */ ret = mt8183_init_clock(afe); @@ -814,7 +833,7 @@ static int mt8183_afe_pcm_dev_probe(struct platform_device *pdev) /* enable clock for regcache get default value from hw */ afe_priv->pm_runtime_bypass_reg_ctl = true; - pm_runtime_get_sync(&pdev->dev); + pm_runtime_get_sync(dev); ret = regmap_reinit_cache(afe->regmap, &mt8183_afe_regmap_config); if (ret) { @@ -822,7 +841,7 @@ static int mt8183_afe_pcm_dev_probe(struct platform_device *pdev) goto err_pm_disable; } - pm_runtime_put_sync(&pdev->dev); + pm_runtime_put_sync(dev); afe_priv->pm_runtime_bypass_reg_ctl = false; regcache_cache_only(afe->regmap, true); @@ -880,7 +899,7 @@ static int mt8183_afe_pcm_dev_probe(struct platform_device *pdev) for (i = 0; i < ARRAY_SIZE(dai_register_cbs); i++) { ret = dai_register_cbs[i](afe); if (ret) { - dev_warn(afe->dev, "dai register i %d fail, ret %d\n", + dev_warn(dev, "dai register i %d fail, ret %d\n", i, ret); goto err_pm_disable; } @@ -889,8 +908,7 @@ static int mt8183_afe_pcm_dev_probe(struct platform_device *pdev) /* init dai_driver and component_driver */ ret = mtk_afe_combine_sub_dai(afe); if (ret) { - dev_warn(afe->dev, "mtk_afe_combine_sub_dai fail, ret %d\n", - ret); + dev_warn(dev, "mtk_afe_combine_sub_dai fail, ret %d\n", ret); goto err_pm_disable; } @@ -902,16 +920,14 @@ static int mt8183_afe_pcm_dev_probe(struct platform_device *pdev) afe->runtime_suspend = mt8183_afe_runtime_suspend; /* register component */ - ret = devm_snd_soc_register_component(&pdev->dev, - &mtk_afe_pcm_platform, + ret = devm_snd_soc_register_component(dev, &mtk_afe_pcm_platform, NULL, 0); if (ret) { dev_warn(dev, "err_platform\n"); goto err_pm_disable; } - ret = devm_snd_soc_register_component(afe->dev, - &mt8183_afe_pcm_dai_component, + ret = devm_snd_soc_register_component(dev, &mt8183_afe_pcm_dai_component, afe->dai_drivers, afe->num_dai_drivers); if (ret) { @@ -922,15 +938,17 @@ static int mt8183_afe_pcm_dev_probe(struct platform_device *pdev) return ret; err_pm_disable: - pm_runtime_disable(&pdev->dev); + pm_runtime_disable(dev); return ret; } static void mt8183_afe_pcm_dev_remove(struct platform_device *pdev) { - pm_runtime_disable(&pdev->dev); - if (!pm_runtime_status_suspended(&pdev->dev)) - mt8183_afe_runtime_suspend(&pdev->dev); + struct device *dev = &pdev->dev; + + pm_runtime_disable(dev); + if (!pm_runtime_status_suspended(dev)) + mt8183_afe_runtime_suspend(dev); } static const struct of_device_id mt8183_afe_pcm_dt_match[] = { diff --git a/sound/soc/mediatek/mt8186/mt8186-afe-pcm.c b/sound/soc/mediatek/mt8186/mt8186-afe-pcm.c index db7c93401bee..c73b4664e53e 100644 --- a/sound/soc/mediatek/mt8186/mt8186-afe-pcm.c +++ b/sound/soc/mediatek/mt8186/mt8186-afe-pcm.c @@ -10,6 +10,7 @@ #include <linux/module.h> #include <linux/of.h> #include <linux/of_address.h> +#include <linux/of_reserved_mem.h> #include <linux/pm_runtime.h> #include <linux/reset.h> #include <sound/soc.h> @@ -2835,6 +2836,12 @@ static int mt8186_afe_pcm_dev_probe(struct platform_device *pdev) afe_priv = afe->platform_priv; afe->dev = &pdev->dev; + ret = of_reserved_mem_device_init(dev); + if (ret) { + dev_info(dev, "no reserved memory found, pre-allocating buffers instead\n"); + afe->preallocate_buffers = true; + } + afe->base_addr = devm_platform_ioremap_resource(pdev, 0); if (IS_ERR(afe->base_addr)) return PTR_ERR(afe->base_addr); diff --git a/sound/soc/mediatek/mt8192/mt8192-afe-pcm.c b/sound/soc/mediatek/mt8192/mt8192-afe-pcm.c index fd6af74d7995..3d32fe46118e 100644 --- a/sound/soc/mediatek/mt8192/mt8192-afe-pcm.c +++ b/sound/soc/mediatek/mt8192/mt8192-afe-pcm.c @@ -12,6 +12,7 @@ #include <linux/mfd/syscon.h> #include <linux/of.h> #include <linux/of_address.h> +#include <linux/of_reserved_mem.h> #include <linux/pm_runtime.h> #include <linux/reset.h> #include <sound/soc.h> @@ -2179,6 +2180,12 @@ static int mt8192_afe_pcm_dev_probe(struct platform_device *pdev) afe->dev = dev; + ret = of_reserved_mem_device_init(dev); + if (ret) { + dev_info(dev, "no reserved memory found, pre-allocating buffers instead\n"); + afe->preallocate_buffers = true; + } + /* init audio related clock */ ret = mt8192_init_clock(afe); if (ret) { |