Merge tag 'asoc-v6.5' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus

ASoC: Updates for v6.5

A fairly quiet release from a core and framework point of view, but a
very big one from the point of view of new drivers:

 - More refectoring from Morimoto-san, this time mainly around DAI
   links and how we control the ordering of trigger() callbacks.
 - Convert a lot of drivers to use maple tree based caches.
 - Lots of work on the x86 driver stack.
 - Compressed audio support for Qualcomm.
 - Support for AMD SoundWire, Analog Devices SSM3515, Google Chameleon,
   Ingenic X1000, Intel systems with various CODECs, Longsoon platforms,
   Maxim MAX98388, Mediatek MT8188, Nuvoton NAU8825C, NXP platforms with
   NAU8822, Qualcomm WSA884x, StarFive JH7110, Texas Instruments TAS2781.

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);