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authorVinod Koul <vkoul@kernel.org>2019-08-13 11:35:46 +0300
committerVinod Koul <vkoul@kernel.org>2019-09-04 12:27:19 +0300
commitc7578c1d6285252d862b324f6fc26dd5adc8517c (patch)
treedf8b857395a35ee11673115f6ea70c26bcefdb75 /drivers/soundwire
parenta2e484585ad306aa8ac84140ef54d722ac8f45df (diff)
downloadlinux-c7578c1d6285252d862b324f6fc26dd5adc8517c.tar.xz
soundwire: Add compute_params callback
This callback allows masters to compute the bus parameters required. Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Link: https://lore.kernel.org/r/20190813083550.5877-2-srinivas.kandagatla@linaro.org Signed-off-by: Vinod Koul <vkoul@kernel.org>
Diffstat (limited to 'drivers/soundwire')
-rw-r--r--drivers/soundwire/stream.c10
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/soundwire/stream.c b/drivers/soundwire/stream.c
index 8d6c13528b68..0bc1b4dbd14b 100644
--- a/drivers/soundwire/stream.c
+++ b/drivers/soundwire/stream.c
@@ -1485,6 +1485,16 @@ static int _sdw_prepare_stream(struct sdw_stream_runtime *stream)
bus->params.bandwidth += m_rt->stream->params.rate *
m_rt->ch_count * m_rt->stream->params.bps;
+ /* Compute params */
+ if (bus->compute_params) {
+ ret = bus->compute_params(bus);
+ if (ret < 0) {
+ dev_err(bus->dev, "Compute params failed: %d",
+ ret);
+ return ret;
+ }
+ }
+
/* Program params */
ret = sdw_program_params(bus);
if (ret < 0) {