summaryrefslogtreecommitdiffstats
path: root/sound/soc/rockchip
diff options
context:
space:
mode:
authorSugar Zhang <sugar.zhang@rock-chips.com>2015-11-10 15:32:07 +0800
committerMark Brown <broonie@kernel.org>2015-11-16 17:38:05 +0000
commitc4f9374ddc461ed76be30f4d354a6d1ecb94dfa5 (patch)
tree2f439a721f6f6b12730236265630b6b2178f1afe /sound/soc/rockchip
parent3a3b070da98e43037e35b9ad02eb0fff1a57e318 (diff)
downloadlinux-c4f9374ddc461ed76be30f4d354a6d1ecb94dfa5.tar.bz2
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.c20
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;