diff options
| author | Mark Brown <broonie@kernel.org> | 2021-12-06 17:25:00 +0000 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2021-12-06 17:25:00 +0000 |
| commit | 6e2127dcb78367443a27efb09a6dd7155eff56ef (patch) | |
| tree | e13c446684f699b0dc2052bd2c86470a0193170b /sound/soc/mediatek/mt8195 | |
| parent | c736d64daa7f7aec9a9ddad9c4d56b891d3b2c2b (diff) | |
| parent | 2da636247bb6f4fc3a9842ade04757790753fd2c (diff) | |
ASoC: mediatek: support memory-region assignment
Merge series from Trevor Wu <trevor.wu@mediatek.com>:
This series of patches adds support for memory-region assignment, so the
access region of DMA engine could be restricted.
Patches are based on broonie tree "for-next" branch.
Trevor Wu (2):
ASoC: mediatek: mt8195: support reserved memory assignment
dt-bindings: mediatek: mt8195: add memory-region property
.../devicetree/bindings/sound/mt8195-afe-pcm.yaml | 8 ++++++++
sound/soc/mediatek/mt8195/mt8195-afe-pcm.c | 7 +++++++
2 files changed, 15 insertions(+)
--
2.18.0
Diffstat (limited to 'sound/soc/mediatek/mt8195')
| -rw-r--r-- | sound/soc/mediatek/mt8195/mt8195-afe-pcm.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/sound/soc/mediatek/mt8195/mt8195-afe-pcm.c b/sound/soc/mediatek/mt8195/mt8195-afe-pcm.c index 2bb05a828e8d..8a6db24116e3 100644 --- a/sound/soc/mediatek/mt8195/mt8195-afe-pcm.c +++ b/sound/soc/mediatek/mt8195/mt8195-afe-pcm.c @@ -14,6 +14,7 @@ #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 "mt8195-afe-common.h" #include "mt8195-afe-clk.h" @@ -3061,6 +3062,12 @@ static int mt8195_afe_pcm_dev_probe(struct platform_device *pdev) int i, irq_id, ret; struct snd_soc_component *component; + ret = of_reserved_mem_device_init(dev); + if (ret) { + dev_err(dev, "failed to assign memory region: %d\n", ret); + return ret; + } + ret = dma_set_mask_and_coherent(dev, DMA_BIT_MASK(33)); if (ret) return ret; |