xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

soundwire: Add stream configuration APIs

Browse Source 
Add APIs for prepare, enable, disable and de-prepare stream.

Signed-off-by: Sanyog Kale <sanyog.r.kale@intel.com>
Signed-off-by: Shreyas NC <shreyas.nc@intel.com>
Signed-off-by: Vinod Koul <vkoul@kernel.org>
This commit is contained in:
Sanyog Kale
2018-04-26 18:38:33 +05:30
committed by Vinod Koul
parent 99b8a5d608
commit 5c3eb9f7bd
3 changed files with 257 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

9
drivers/soundwire/bus.c
View File

@@ -17,6 +17,7 @@
*/
int sdw_add_bus_master(struct sdw_bus *bus)
{
struct sdw_master_prop *prop = NULL;
int ret;
if (!bus->dev) {
@@ -79,9 +80,17 @@ int sdw_add_bus_master(struct sdw_bus *bus)
}
/*
* Initialize clock values based on Master properties. The max
* frequency is read from max_freq property. Current assumption
* is that the bus will start at highest clock frequency when
* powered on.
*
* Default active bank will be 0 as out of reset the Slaves have
* to start with bank 0 (Table 40 of Spec)
*/
prop = &bus->prop;
bus->params.max_dr_freq = prop->max_freq * SDW_DOUBLE_RATE_FACTOR;
bus->params.curr_dr_freq = bus->params.max_dr_freq;
bus->params.curr_bank = SDW_BANK0;
bus->params.next_bank = SDW_BANK1;