kernel/linux.git/drivers/soundwire/generic_bandwidth_allocation.c, branch v5.10.257

soundwire: remove an unnecessary NULL check

2020-09-23T10:04:48+00:00

The "bus" pointer isn't NULL so the address to a non-zero offset in middle of "bus" cannot be NULL. Delete the NULL check. Signed-off-by: Dan Carpenter Link: https://lore.kernel.org/r/20200923083235.GB1454948@mwanda Signed-off-by: Vinod Koul

soundwire: enable Data Port test modes

2020-09-23T09:59:29+00:00

Test modes are required for all SoundWire IP, and help debug integration issues. In theory each port can be configured with a different mode but to simplify this patch only offers separate configurations for the Master and Slave ports - this covers 99% of the intended cases during platform integration. The test mode value is set via platform-specific ways. Signed-off-by: Pierre-Louis Bossart Reviewed-by: Guennadi Liakhovetski Reviewed-by: Rander Wang Signed-off-by: Bard Liao Link: https://lore.kernel.org/r/20200920193207.31241-2-yung-chuan.liao@linux.intel.com Signed-off-by: Vinod Koul

soundwire: Add generic bandwidth allocation algorithm

2020-09-18T12:18:51+00:00

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 Acked-by: Jaroslav Kysela Link: https://lore.kernel.org/r/20200908131520.5712-1-yung-chuan.liao@linux.intel.com Signed-off-by: Vinod Koul