diff options
| -rw-r--r-- | Documentation/devicetree/bindings/sound/mt8195-afe-pcm.yaml | 10 | ||||
| -rw-r--r-- | sound/soc/mediatek/mt8195/mt8195-afe-pcm.c | 16 |
2 files changed, 26 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/sound/mt8195-afe-pcm.yaml b/Documentation/devicetree/bindings/sound/mt8195-afe-pcm.yaml index 6d0975b33d15..4452a4070eff 100644 --- a/Documentation/devicetree/bindings/sound/mt8195-afe-pcm.yaml +++ b/Documentation/devicetree/bindings/sound/mt8195-afe-pcm.yaml @@ -19,6 +19,12 @@ properties: interrupts: maxItems: 1 + resets: + maxItems: 1 + + reset-names: + const: audiosys + memory-region: maxItems: 1 description: | @@ -127,6 +133,8 @@ required: - compatible - reg - interrupts + - resets + - reset-names - mediatek,topckgen - power-domains - clocks @@ -144,6 +152,8 @@ examples: compatible = "mediatek,mt8195-audio"; reg = <0x10890000 0x10000>; interrupts = <GIC_SPI 822 IRQ_TYPE_LEVEL_HIGH 0>; + resets = <&watchdog 14>; + reset-names = "audiosys"; mediatek,topckgen = <&topckgen>; power-domains = <&spm 7>; //MT8195_POWER_DOMAIN_AUDIO memory-region = <&snd_dma_mem_reserved>; diff --git a/sound/soc/mediatek/mt8195/mt8195-afe-pcm.c b/sound/soc/mediatek/mt8195/mt8195-afe-pcm.c index 550636500949..72b2c6d629b9 100644 --- a/sound/soc/mediatek/mt8195/mt8195-afe-pcm.c +++ b/sound/soc/mediatek/mt8195/mt8195-afe-pcm.c @@ -16,6 +16,7 @@ #include <linux/of_platform.h> #include <linux/of_reserved_mem.h> #include <linux/pm_runtime.h> +#include <linux/reset.h> #include "mt8195-afe-common.h" #include "mt8195-afe-clk.h" #include "mt8195-reg.h" @@ -3056,6 +3057,7 @@ static int mt8195_afe_pcm_dev_probe(struct platform_device *pdev) struct mtk_base_afe *afe; struct mt8195_afe_private *afe_priv; struct device *dev = &pdev->dev; + struct reset_control *rstc; int i, irq_id, ret; struct snd_soc_component *component; @@ -3092,6 +3094,20 @@ static int mt8195_afe_pcm_dev_probe(struct platform_device *pdev) return ret; } + /* reset controller to reset audio regs before regmap cache */ + rstc = devm_reset_control_get_exclusive(dev, "audiosys"); + if (IS_ERR(rstc)) { + ret = PTR_ERR(rstc); + dev_err(dev, "could not get audiosys reset:%d\n", ret); + return ret; + } + + ret = reset_control_reset(rstc); + if (ret) { + dev_err(dev, "failed to trigger audio reset:%d\n", ret); + return ret; + } + spin_lock_init(&afe_priv->afe_ctrl_lock); mutex_init(&afe->irq_alloc_lock); |