diff options
| author | Trevor Wu <trevor.wu@mediatek.com> | 2023-06-29 10:43:47 +0300 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2023-07-10 00:47:29 +0300 |
| commit | fd9965235099fc4cccd94f82a371192bf7645a3e (patch) | |
| tree | f7348ad556993ca89d31940fcf1a6601e0965870 | |
| parent | 3d74f42c56db263e82ad96f8fe23aef38cdc071f (diff) | |
| download | linux-fd9965235099fc4cccd94f82a371192bf7645a3e.tar.xz | |
ASoC: mediatek: mt8188: add memory-region support
In certain projects, it is necessary to utilize the reserved memory
region for audio dma. The patch takes into account the dts property
'memory-region', allowing for the specification of memory for afe memif
through device tree.
Signed-off-by: Trevor Wu <trevor.wu@mediatek.com>
Link: https://lore.kernel.org/r/20230629074348.21670-2-trevor.wu@mediatek.com
Signed-off-by: Mark Brown <broonie@kernel.org>
| -rw-r--r-- | sound/soc/mediatek/mt8188/mt8188-afe-pcm.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/sound/soc/mediatek/mt8188/mt8188-afe-pcm.c b/sound/soc/mediatek/mt8188/mt8188-afe-pcm.c index 6a24b339444b..5e14655c5617 100644 --- a/sound/soc/mediatek/mt8188/mt8188-afe-pcm.c +++ b/sound/soc/mediatek/mt8188/mt8188-afe-pcm.c @@ -16,6 +16,7 @@ #include <linux/of.h> #include <linux/of_address.h> #include <linux/of_platform.h> +#include <linux/of_reserved_mem.h> #include <linux/pm_runtime.h> #include <linux/soc/mediatek/infracfg.h> #include <linux/reset.h> @@ -3193,11 +3194,15 @@ 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; + struct device *dev = &pdev->dev; struct reset_control *rstc; struct regmap *infra_ao; int i, irq_id, ret; + ret = of_reserved_mem_device_init(dev); + if (ret) + dev_dbg(dev, "failed to assign memory region: %d\n", ret); + ret = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(33)); if (ret) return ret; @@ -3213,7 +3218,6 @@ static int mt8188_afe_pcm_dev_probe(struct platform_device *pdev) afe_priv = afe->platform_priv; afe->dev = &pdev->dev; - dev = afe->dev; afe->base_addr = devm_platform_ioremap_resource(pdev, 0); if (IS_ERR(afe->base_addr)) |