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[86.30.250.44]) by smtp.gmail.com with ESMTPSA id m11sm27568999wrn.92.2020.03.12.03.01.12 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 12 Mar 2020 03:01:12 -0700 (PDT) From: Srinivas Kandagatla To: vkoul@kernel.org Subject: [PATCH] soundwire: stream: use sdw_write instead of update Date: Thu, 12 Mar 2020 10:01:05 +0000 Message-Id: <20200312100105.5293-1-srinivas.kandagatla@linaro.org> X-Mailer: git-send-email 2.21.0 MIME-Version: 1.0 Cc: alsa-devel@alsa-project.org, Srinivas Kandagatla , pierre-louis.bossart@linux.intel.com, linux-kernel@vger.kernel.org X-BeenThere: alsa-devel@alsa-project.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: "Alsa-devel mailing list for ALSA developers - http://www.alsa-project.org" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: alsa-devel-bounces@alsa-project.org Sender: "Alsa-devel" There is no point in using update for registers with write mask as 0xFF, this adds unecessary traffic on the bus. Just use sdw_write directly. Signed-off-by: Srinivas Kandagatla Acked-by: Pierre-Louis Bossart --- 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 00348d1fc606..1b43d03c79ea 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,