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| author |   Shreyas NC <shreyas.nc@intel.com> | 2018-07-27 14:44:16 +0530 |
|---|---|---|
| committer |   Vinod Koul <vkoul@kernel.org> | 2018-08-27 09:49:48 +0530 |
| commit | ce6e74d008ff5c8b43e3bafaa7343bf7eb69593e (patch) | |
| tree | 88194f56809b4631aba7cb4e7bfbb8a4b20c8afc /include/linux/soundwire | |
| parent | soundwire: Handle multiple master instances in a stream (diff) | |
| download | linux-dev-ce6e74d008ff5c8b43e3bafaa7343bf7eb69593e.tar.xz linux-dev-ce6e74d008ff5c8b43e3bafaa7343bf7eb69593e.zip | |
soundwire: Add support for multi link bank switch
In cases of multiple Masters in a stream, synchronization
between multiple Master(s) is achieved by performing bank switch
together and using Master methods.
Add sdw_ml_bank_switch() to wait for completion of bank switch.
Signed-off-by: Sanyog Kale <sanyog.r.kale@intel.com>
Signed-off-by: Shreyas NC <shreyas.nc@intel.com>
Acked-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Diffstat (limited to 'include/linux/soundwire')
| -rw-r--r-- | include/linux/soundwire/sdw.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/include/linux/soundwire/sdw.h b/include/linux/soundwire/sdw.h index 03df709fb8ef..c6aa2bf847c7 100644 --- a/include/linux/soundwire/sdw.h +++ b/include/linux/soundwire/sdw.h @@ -678,6 +678,9 @@ struct sdw_master_ops { * @defer_msg: Defer message * @clk_stop_timeout: Clock stop timeout computed * @bank_switch_timeout: Bank switch timeout computed + * @multi_link: Store bus property that indicates if multi links + * are supported. This flag is populated by drivers after reading + * appropriate firmware (ACPI/DT). */ struct sdw_bus { struct device *dev; @@ -694,6 +697,7 @@ struct sdw_bus { struct sdw_defer defer_msg; unsigned int clk_stop_timeout; u32 bank_switch_timeout; + bool multi_link; }; int sdw_add_bus_master(struct sdw_bus *bus); |