diff options
| author | Srinivas Kandagatla <srinivas.kandagatla@linaro.org> | 2016-01-28 15:28:40 +0000 |
|---|---|---|
| committer | Srinivas Kandagatla <srinivas.kandagatla@linaro.org> | 2016-02-05 08:12:56 +0000 |
| commit | 46c8a269dcd842a9eea5a579e1a161f7d6af975e (patch) | |
| tree | f2e95de0eab65c716dd418b71b4c0a1a5fcd2a07 | |
| parent | 5c573f4f2f3cdb01f605305636b3d59f3d97a203 (diff) | |
ASoC: qcom: apq8016: add wrdma support
This patch adds wrdma support in lpass-apq8016 by providing the register
offsets and adding support in dma channel allocation callback.
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
| -rw-r--r-- | sound/soc/qcom/lpass-apq8016.c | 24 |
1 files changed, 20 insertions, 4 deletions
diff --git a/sound/soc/qcom/lpass-apq8016.c b/sound/soc/qcom/lpass-apq8016.c index df44f09431fc4..3eef0c37ba50d 100644 --- a/sound/soc/qcom/lpass-apq8016.c +++ b/sound/soc/qcom/lpass-apq8016.c @@ -137,11 +137,23 @@ static int apq8016_lpass_alloc_dma_channel(struct lpass_data *drvdata, int direction) { struct lpass_variant *v = drvdata->variant; - int chan = find_first_zero_bit(&drvdata->dma_ch_bit_map, + int chan = 0; + + if (direction == SNDRV_PCM_STREAM_PLAYBACK) { + chan = find_first_zero_bit(&drvdata->dma_ch_bit_map, v->rdma_channels); - if (chan >= v->rdma_channels) - return -EBUSY; + if (chan >= v->rdma_channels) + return -EBUSY; + } else { + chan = find_next_zero_bit(&drvdata->dma_ch_bit_map, + v->wrdma_channel_start + + v->wrdma_channels, + v->wrdma_channel_start); + + if (chan >= v->wrdma_channel_start + v->wrdma_channels) + return -EBUSY; + } set_bit(chan, &drvdata->dma_ch_bit_map); @@ -213,7 +225,11 @@ static struct lpass_variant apq8016_data = { .rdma_reg_base = 0x8400, .rdma_reg_stride = 0x1000, .rdma_channels = 2, - .rdmactl_audif_start = 1, + .dmactl_audif_start = 1, + .wrdma_reg_base = 0xB000, + .wrdma_reg_stride = 0x1000, + .wrdma_channel_start = 5, + .wrdma_channels = 2, .dai_driver = apq8016_lpass_cpu_dai_driver, .num_dai = ARRAY_SIZE(apq8016_lpass_cpu_dai_driver), .init = apq8016_lpass_init, |