From c7578c1d6285252d862b324f6fc26dd5adc8517c Mon Sep 17 00:00:00 2001 From: Vinod Koul Date: Tue, 13 Aug 2019 09:35:46 +0100 Subject: soundwire: Add compute_params callback This callback allows masters to compute the bus parameters required. Signed-off-by: Srinivas Kandagatla Link: https://lore.kernel.org/r/20190813083550.5877-2-srinivas.kandagatla@linaro.org Signed-off-by: Vinod Koul --- drivers/soundwire/stream.c | 10 ++++++++++ 1 file changed, 10 insertions(+) (limited to 'drivers/soundwire') 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) { -- cgit v1.2.3