From 0b43fef979b4664d51a09dc7e0c430ebb2d18267 Mon Sep 17 00:00:00 2001 From: Srinivas Kandagatla Date: Thu, 12 Mar 2020 10:01:05 +0000 Subject: [PATCH] soundwire: stream: use sdw_write instead of update There is no point in using update for registers with write mask as 0xFF, this adds unnecessary traffic on the bus. Just use sdw_write directly. Signed-off-by: Srinivas Kandagatla Acked-by: Pierre-Louis Bossart Link: https://lore.kernel.org/r/20200312100105.5293-1-srinivas.kandagatla@linaro.org Signed-off-by: Vinod Koul --- drivers/soundwire/stream.c | 9 ++++----- 1 file changed, 4 insertions(+), 5 deletions(-) diff --git a/drivers/soundwire/stream.c b/drivers/soundwire/stream.c index 00348d1..1b43d03 100644 --- a/drivers/soundwire/stream.c +++ b/drivers/soundwire/stream.c @@ -313,9 +313,9 @@ static int sdw_enable_disable_slave_ports(struct sdw_bus *bus, * it is safe to reset this register */ if (en) - ret = sdw_update(s_rt->slave, addr, 0xFF, p_rt->ch_mask); + ret = sdw_write(s_rt->slave, addr, p_rt->ch_mask); else - ret = sdw_update(s_rt->slave, addr, 0xFF, 0x0); + ret = sdw_write(s_rt->slave, addr, 0x0); if (ret < 0) dev_err(&s_rt->slave->dev, @@ -464,10 +464,9 @@ static int sdw_prep_deprep_slave_ports(struct sdw_bus *bus, addr = SDW_DPN_PREPARECTRL(p_rt->num); if (prep) - ret = sdw_update(s_rt->slave, addr, - 0xFF, p_rt->ch_mask); + ret = sdw_write(s_rt->slave, addr, p_rt->ch_mask); else - ret = sdw_update(s_rt->slave, addr, 0xFF, 0x0); + ret = sdw_write(s_rt->slave, addr, 0x0); if (ret < 0) { dev_err(&s_rt->slave->dev, -- 2.7.4