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| author | Sugar Zhang <sugar.zhang@rock-chips.com> | 2015-11-10 15:32:07 +0800 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2015-11-16 17:38:05 +0000 |
| commit | c4f9374ddc461ed76be30f4d354a6d1ecb94dfa5 (patch) | |
| tree | 2f439a721f6f6b12730236265630b6b2178f1afe /sound/soc/rockchip | |
| parent | 3a3b070da98e43037e35b9ad02eb0fff1a57e318 (diff) | |
| download | linux-stable-c4f9374ddc461ed76be30f4d354a6d1ecb94dfa5.tar.gz linux-stable-c4f9374ddc461ed76be30f4d354a6d1ecb94dfa5.tar.bz2 linux-stable-c4f9374ddc461ed76be30f4d354a6d1ecb94dfa5.zip | |
ASoC: rockchip: i2s: compatible with different chips
there maybe more than one i2s module inside chip, and these i2s modules
have different channels features.
for example: there are 3 i2s in rk3066, one support 8 channels playback
and 2 channels capture, but the others only support 2 channels playback
and 2 channels capture.
in order to compatible with these various chips, we add playback and
capture property to specify these values.
there are default channels configuration in driver: 8 channels playback
and 2 channels capture. if not add property, we use the default values.
Signed-off-by: Sugar Zhang <sugar.zhang@rock-chips.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound/soc/rockchip')
| -rw-r--r-- | sound/soc/rockchip/rockchip_i2s.c | 20 |
1 files changed, 15 insertions, 5 deletions
diff --git a/sound/soc/rockchip/rockchip_i2s.c b/sound/soc/rockchip/rockchip_i2s.c index ce880f3bccc7..83b1b9c9e017 100644 --- a/sound/soc/rockchip/rockchip_i2s.c +++ b/sound/soc/rockchip/rockchip_i2s.c @@ -474,6 +474,7 @@ static int rockchip_i2s_probe(struct platform_device *pdev) { struct device_node *node = pdev->dev.of_node; struct rk_i2s_dev *i2s; + struct snd_soc_dai_driver *soc_dai; struct resource *res; void __iomem *regs; int ret; @@ -534,17 +535,26 @@ static int rockchip_i2s_probe(struct platform_device *pdev) goto err_pm_disable; } - /* refine capture channels */ + soc_dai = devm_kzalloc(&pdev->dev, + sizeof(*soc_dai), GFP_KERNEL); + if (!soc_dai) + return -ENOMEM; + + memcpy(soc_dai, &rockchip_i2s_dai, sizeof(*soc_dai)); + if (!of_property_read_u32(node, "rockchip,playback-channels", &val)) { + if (val >= 2 && val <= 8) + soc_dai->playback.channels_max = val; + } + if (!of_property_read_u32(node, "rockchip,capture-channels", &val)) { if (val >= 2 && val <= 8) - rockchip_i2s_dai.capture.channels_max = val; - else - rockchip_i2s_dai.capture.channels_max = 2; + soc_dai->capture.channels_max = val; } ret = devm_snd_soc_register_component(&pdev->dev, &rockchip_i2s_component, - &rockchip_i2s_dai, 1); + soc_dai, 1); + if (ret) { dev_err(&pdev->dev, "Could not register DAI\n"); goto err_suspend; |