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| author | Bard Liao <yung-chuan.liao@linux.intel.com> | 2020-09-08 16:15:20 +0300 |
|---|---|---|
| committer | Vinod Koul <vkoul@kernel.org> | 2020-09-18 15:18:51 +0300 |
| commit | 9026118f20e28f202dab34f219bbb831ffb8c4dc (patch) | |
| tree | 1ee57a6ac5368a66aad6feed6ac8074a15fdf05b /drivers/soundwire/intel.c | |
| parent | 32d2a8935bf8faf201ff1a859eeb43ef6e5e438d (diff) | |
| download | linux-9026118f20e28f202dab34f219bbb831ffb8c4dc.tar.xz | |
soundwire: Add generic bandwidth allocation algorithm
This algorithm computes bus parameters like clock frequency, frame
shape and port transport parameters based on active stream(s) running
on the bus.
Developers can also implement their own .compute_params() callback for
specific resource management algorithm, and set if before calling
sdw_add_bus_master()
Credits: this patch is based on an earlier internal contribution by
Vinod Koul, Sanyog Kale, Shreyas Nc and Hardik Shah. All hard-coded
values were removed from the initial contribution to use BIOS
information instead.
Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Acked-by: Jaroslav Kysela <perex@perex.cz>
Link: https://lore.kernel.org/r/20200908131520.5712-1-yung-chuan.liao@linux.intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Diffstat (limited to 'drivers/soundwire/intel.c')
| -rw-r--r-- | drivers/soundwire/intel.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/soundwire/intel.c b/drivers/soundwire/intel.c index e047910d73f5..1211d114ff59 100644 --- a/drivers/soundwire/intel.c +++ b/drivers/soundwire/intel.c @@ -1318,6 +1318,9 @@ static int intel_master_probe(struct platform_device *pdev) /* set driver data, accessed by snd_soc_dai_get_drvdata() */ dev_set_drvdata(dev, cdns); + /* use generic bandwidth allocation algorithm */ + sdw->cdns.bus.compute_params = sdw_compute_params; + ret = sdw_bus_master_add(bus, dev, dev->fwnode); if (ret) { dev_err(dev, "sdw_bus_master_add fail: %d\n", ret); |