From 5c3eb9f7bdf1f141e051605b7b4225b1e83820a2 Mon Sep 17 00:00:00 2001 From: Sanyog Kale Date: Thu, 26 Apr 2018 18:38:33 +0530 Subject: soundwire: Add stream configuration APIs Add APIs for prepare, enable, disable and de-prepare stream. Signed-off-by: Sanyog Kale Signed-off-by: Shreyas NC Signed-off-by: Vinod Koul --- drivers/soundwire/bus.c | 9 +++++++++ 1 file changed, 9 insertions(+) (limited to 'drivers/soundwire/bus.c') diff --git a/drivers/soundwire/bus.c b/drivers/soundwire/bus.c index 084bf71b2b87..dcc0ff9f0c22 100644 --- a/drivers/soundwire/bus.c +++ b/drivers/soundwire/bus.c @@ -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; -- cgit v1.2.3-58-ga151