From: Bard Liao <yung-chuan.liao@linux.intel.com>
To: alsa-devel@alsa-project.org, vkoul@kernel.org
Cc: vinod.koul@linaro.org, linux-kernel@vger.kernel.org,
tiwai@suse.de, broonie@kernel.org, gregkh@linuxfoundation.org,
jank@cadence.com, srinivas.kandagatla@linaro.org,
rander.wang@linux.intel.com, ranjani.sridharan@linux.intel.com,
hui.wang@canonical.com, pierre-louis.bossart@linux.intel.com,
sanyog.r.kale@intel.com, bard.liao@intel.com
Subject: [RESEND PATCH v2 9/9] soundwire: bus: clarify dev_err/dbg device references
Date: Fri, 22 Jan 2021 15:06:34 +0800 [thread overview]
Message-ID: <20210122070634.12825-10-yung-chuan.liao@linux.intel.com> (raw)
In-Reply-To: <20210122070634.12825-1-yung-chuan.liao@linux.intel.com>
From: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
The SoundWire bus code confuses bus and Slave device levels for
dev_err/dbg logs. That's not impacting functionality but the accuracy
of kernel logs.
We should only use bus->dev for bus-level operations and handling of
Device0. For all other logs where the device number is not zero, we
should use &slave->dev to provide more precisions to the
user/integrator.
Reported-by: Rander Wang <rander.wang@linux.intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Rander Wang <rander.wang@linux.intel.com>
Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com>
---
drivers/soundwire/bus.c | 63 +++++++++++++++++++++--------------------
1 file changed, 33 insertions(+), 30 deletions(-)
diff --git a/drivers/soundwire/bus.c b/drivers/soundwire/bus.c
index 7c4717dd9a34..39edf87cf832 100644
--- a/drivers/soundwire/bus.c
+++ b/drivers/soundwire/bus.c
@@ -636,6 +636,7 @@ static int sdw_get_device_num(struct sdw_slave *slave)
static int sdw_assign_device_num(struct sdw_slave *slave)
{
+ struct sdw_bus *bus = slave->bus;
int ret, dev_num;
bool new_device = false;
@@ -646,7 +647,7 @@ static int sdw_assign_device_num(struct sdw_slave *slave)
dev_num = sdw_get_device_num(slave);
mutex_unlock(&slave->bus->bus_lock);
if (dev_num < 0) {
- dev_err(slave->bus->dev, "Get dev_num failed: %d\n",
+ dev_err(bus->dev, "Get dev_num failed: %d\n",
dev_num);
return dev_num;
}
@@ -659,7 +660,7 @@ static int sdw_assign_device_num(struct sdw_slave *slave)
}
if (!new_device)
- dev_dbg(slave->bus->dev,
+ dev_dbg(bus->dev,
"Slave already registered, reusing dev_num:%d\n",
slave->dev_num);
@@ -669,7 +670,7 @@ static int sdw_assign_device_num(struct sdw_slave *slave)
ret = sdw_write_no_pm(slave, SDW_SCP_DEVNUMBER, dev_num);
if (ret < 0) {
- dev_err(&slave->dev, "Program device_num %d failed: %d\n",
+ dev_err(bus->dev, "Program device_num %d failed: %d\n",
dev_num, ret);
return ret;
}
@@ -748,7 +749,7 @@ static int sdw_program_device_num(struct sdw_bus *bus)
*/
ret = sdw_assign_device_num(slave);
if (ret) {
- dev_err(slave->bus->dev,
+ dev_err(bus->dev,
"Assign dev_num failed:%d\n",
ret);
return ret;
@@ -788,9 +789,11 @@ static int sdw_program_device_num(struct sdw_bus *bus)
static void sdw_modify_slave_status(struct sdw_slave *slave,
enum sdw_slave_status status)
{
- mutex_lock(&slave->bus->bus_lock);
+ struct sdw_bus *bus = slave->bus;
- dev_vdbg(&slave->dev,
+ mutex_lock(&bus->bus_lock);
+
+ dev_vdbg(bus->dev,
"%s: changing status slave %d status %d new status %d\n",
__func__, slave->dev_num, slave->status, status);
@@ -811,7 +814,7 @@ static void sdw_modify_slave_status(struct sdw_slave *slave,
complete(&slave->enumeration_complete);
}
slave->status = status;
- mutex_unlock(&slave->bus->bus_lock);
+ mutex_unlock(&bus->bus_lock);
}
static enum sdw_clk_stop_mode sdw_get_clk_stop_mode(struct sdw_slave *slave)
@@ -1140,7 +1143,7 @@ int sdw_configure_dpn_intr(struct sdw_slave *slave,
ret = sdw_update(slave, addr, (mask | SDW_DPN_INT_PORT_READY), val);
if (ret < 0)
- dev_err(slave->bus->dev,
+ dev_err(&slave->dev,
"SDW_DPN_INTMASK write failed:%d\n", val);
return ret;
@@ -1271,7 +1274,7 @@ static int sdw_initialize_slave(struct sdw_slave *slave)
/* Enable SCP interrupts */
ret = sdw_update_no_pm(slave, SDW_SCP_INTMASK1, val, val);
if (ret < 0) {
- dev_err(slave->bus->dev,
+ dev_err(&slave->dev,
"SDW_SCP_INTMASK1 write failed:%d\n", ret);
return ret;
}
@@ -1286,7 +1289,7 @@ static int sdw_initialize_slave(struct sdw_slave *slave)
ret = sdw_update_no_pm(slave, SDW_DP0_INTMASK, val, val);
if (ret < 0)
- dev_err(slave->bus->dev,
+ dev_err(&slave->dev,
"SDW_DP0_INTMASK read failed:%d\n", ret);
return ret;
}
@@ -1298,7 +1301,7 @@ static int sdw_handle_dp0_interrupt(struct sdw_slave *slave, u8 *slave_status)
status = sdw_read_no_pm(slave, SDW_DP0_INT);
if (status < 0) {
- dev_err(slave->bus->dev,
+ dev_err(&slave->dev,
"SDW_DP0_INT read failed:%d\n", status);
return status;
}
@@ -1337,7 +1340,7 @@ static int sdw_handle_dp0_interrupt(struct sdw_slave *slave, u8 *slave_status)
/* clear the interrupts but don't touch reserved and SDCA_CASCADE fields */
ret = sdw_write_no_pm(slave, SDW_DP0_INT, clear);
if (ret < 0) {
- dev_err(slave->bus->dev,
+ dev_err(&slave->dev,
"SDW_DP0_INT write failed:%d\n", ret);
return ret;
}
@@ -1345,7 +1348,7 @@ static int sdw_handle_dp0_interrupt(struct sdw_slave *slave, u8 *slave_status)
/* Read DP0 interrupt again */
status2 = sdw_read_no_pm(slave, SDW_DP0_INT);
if (status2 < 0) {
- dev_err(slave->bus->dev,
+ dev_err(&slave->dev,
"SDW_DP0_INT read failed:%d\n", status2);
return status2;
}
@@ -1358,7 +1361,7 @@ static int sdw_handle_dp0_interrupt(struct sdw_slave *slave, u8 *slave_status)
} while ((status & SDW_DP0_INTERRUPTS) && (count < SDW_READ_INTR_CLEAR_RETRY));
if (count == SDW_READ_INTR_CLEAR_RETRY)
- dev_warn(slave->bus->dev, "Reached MAX_RETRY on DP0 read\n");
+ dev_warn(&slave->dev, "Reached MAX_RETRY on DP0 read\n");
return ret;
}
@@ -1376,7 +1379,7 @@ static int sdw_handle_port_interrupt(struct sdw_slave *slave,
addr = SDW_DPN_INT(port);
status = sdw_read_no_pm(slave, addr);
if (status < 0) {
- dev_err(slave->bus->dev,
+ dev_err(&slave->dev,
"SDW_DPN_INT read failed:%d\n", status);
return status;
@@ -1410,7 +1413,7 @@ static int sdw_handle_port_interrupt(struct sdw_slave *slave,
/* clear the interrupt but don't touch reserved fields */
ret = sdw_write_no_pm(slave, addr, clear);
if (ret < 0) {
- dev_err(slave->bus->dev,
+ dev_err(&slave->dev,
"SDW_DPN_INT write failed:%d\n", ret);
return ret;
}
@@ -1418,7 +1421,7 @@ static int sdw_handle_port_interrupt(struct sdw_slave *slave,
/* Read DPN interrupt again */
status2 = sdw_read_no_pm(slave, addr);
if (status2 < 0) {
- dev_err(slave->bus->dev,
+ dev_err(&slave->dev,
"SDW_DPN_INT read failed:%d\n", status2);
return status2;
}
@@ -1431,7 +1434,7 @@ static int sdw_handle_port_interrupt(struct sdw_slave *slave,
} while ((status & SDW_DPN_INTERRUPTS) && (count < SDW_READ_INTR_CLEAR_RETRY));
if (count == SDW_READ_INTR_CLEAR_RETRY)
- dev_warn(slave->bus->dev, "Reached MAX_RETRY on port read");
+ dev_warn(&slave->dev, "Reached MAX_RETRY on port read");
return ret;
}
@@ -1460,7 +1463,7 @@ static int sdw_handle_slave_alerts(struct sdw_slave *slave)
/* Read Intstat 1, Intstat 2 and Intstat 3 registers */
ret = sdw_read_no_pm(slave, SDW_SCP_INT1);
if (ret < 0) {
- dev_err(slave->bus->dev,
+ dev_err(&slave->dev,
"SDW_SCP_INT1 read failed:%d\n", ret);
goto io_err;
}
@@ -1468,7 +1471,7 @@ static int sdw_handle_slave_alerts(struct sdw_slave *slave)
ret = sdw_nread_no_pm(slave, SDW_SCP_INTSTAT2, 2, buf2);
if (ret < 0) {
- dev_err(slave->bus->dev,
+ dev_err(&slave->dev,
"SDW_SCP_INT2/3 read failed:%d\n", ret);
goto io_err;
}
@@ -1476,7 +1479,7 @@ static int sdw_handle_slave_alerts(struct sdw_slave *slave)
if (slave->prop.is_sdca) {
ret = sdw_read_no_pm(slave, SDW_DP0_INT);
if (ret < 0) {
- dev_err(slave->bus->dev,
+ dev_err(&slave->dev,
"SDW_DP0_INT read failed:%d\n", ret);
goto io_err;
}
@@ -1573,7 +1576,7 @@ static int sdw_handle_slave_alerts(struct sdw_slave *slave)
/* Ack interrupt */
ret = sdw_write_no_pm(slave, SDW_SCP_INT1, clear);
if (ret < 0) {
- dev_err(slave->bus->dev,
+ dev_err(&slave->dev,
"SDW_SCP_INT1 write failed:%d\n", ret);
goto io_err;
}
@@ -1587,7 +1590,7 @@ static int sdw_handle_slave_alerts(struct sdw_slave *slave)
*/
ret = sdw_read_no_pm(slave, SDW_SCP_INT1);
if (ret < 0) {
- dev_err(slave->bus->dev,
+ dev_err(&slave->dev,
"SDW_SCP_INT1 read failed:%d\n", ret);
goto io_err;
}
@@ -1595,7 +1598,7 @@ static int sdw_handle_slave_alerts(struct sdw_slave *slave)
ret = sdw_nread_no_pm(slave, SDW_SCP_INTSTAT2, 2, _buf2);
if (ret < 0) {
- dev_err(slave->bus->dev,
+ dev_err(&slave->dev,
"SDW_SCP_INT2/3 read failed:%d\n", ret);
goto io_err;
}
@@ -1603,7 +1606,7 @@ static int sdw_handle_slave_alerts(struct sdw_slave *slave)
if (slave->prop.is_sdca) {
ret = sdw_read_no_pm(slave, SDW_DP0_INT);
if (ret < 0) {
- dev_err(slave->bus->dev,
+ dev_err(&slave->dev,
"SDW_DP0_INT read failed:%d\n", ret);
goto io_err;
}
@@ -1629,7 +1632,7 @@ static int sdw_handle_slave_alerts(struct sdw_slave *slave)
} while (stat != 0 && count < SDW_READ_INTR_CLEAR_RETRY);
if (count == SDW_READ_INTR_CLEAR_RETRY)
- dev_warn(slave->bus->dev, "Reached MAX_RETRY on alert read\n");
+ dev_warn(&slave->dev, "Reached MAX_RETRY on alert read\n");
io_err:
pm_runtime_mark_last_busy(&slave->dev);
@@ -1735,7 +1738,7 @@ int sdw_handle_slave_status(struct sdw_bus *bus,
case SDW_SLAVE_ALERT:
ret = sdw_handle_slave_alerts(slave);
if (ret)
- dev_err(bus->dev,
+ dev_err(&slave->dev,
"Slave %d alert handling failed: %d\n",
i, ret);
break;
@@ -1754,21 +1757,21 @@ int sdw_handle_slave_status(struct sdw_bus *bus,
ret = sdw_initialize_slave(slave);
if (ret)
- dev_err(bus->dev,
+ dev_err(&slave->dev,
"Slave %d initialization failed: %d\n",
i, ret);
break;
default:
- dev_err(bus->dev, "Invalid slave %d status:%d\n",
+ dev_err(&slave->dev, "Invalid slave %d status:%d\n",
i, status[i]);
break;
}
ret = sdw_update_slave_status(slave, status[i]);
if (ret)
- dev_err(slave->bus->dev,
+ dev_err(&slave->dev,
"Update Slave status failed:%d\n", ret);
if (attached_initializing)
complete(&slave->initialization_complete);
--
2.17.1
next prev parent reply other threads:[~2021-01-22 7:12 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-01-22 7:06 [RESEND PATCH v2 0/9] soundwire/regmap: use _no_pm routines Bard Liao
2021-01-22 7:06 ` [RESEND PATCH v2 1/9] soundwire: bus: use sdw_update_no_pm when initializing a device Bard Liao
2021-01-22 7:06 ` [RESEND PATCH v2 2/9] soundwire: bus: use sdw_write_no_pm when setting the bus scale registers Bard Liao
2021-01-22 7:06 ` [RESEND PATCH v2 3/9] soundwire: bus: use no_pm IO routines for all interrupt handling Bard Liao
2021-01-22 7:06 ` [RESEND PATCH v2 4/9] soundwire: export sdw_write/read_no_pm functions Bard Liao
2021-01-22 7:06 ` [RESEND PATCH v2 5/9] regmap: sdw: use _no_pm functions in regmap_read/write Bard Liao
2021-01-22 7:06 ` [RESEND PATCH v2 6/9] regmap: sdw: use no_pm routines for SoundWire 1.2 MBQ Bard Liao
2021-01-22 7:06 ` [RESEND PATCH v2 7/9] regmap: sdw-mbq: use MODULE_LICENSE("GPL") Bard Liao
2021-01-22 7:06 ` [RESEND PATCH v2 8/9] soundwire: bus: fix confusion on device used by pm_runtime Bard Liao
2021-01-22 7:06 ` Bard Liao [this message]
2021-02-06 10:26 ` [RESEND PATCH v2 0/9] soundwire/regmap: use _no_pm routines Vinod Koul
2021-02-08 12:50 ` Mark Brown
2021-02-08 15:04 ` Vinod Koul
2021-02-10 19:58 ` Mark Brown
2021-02-11 5:25 ` Vinod Koul
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20210122070634.12825-10-yung-chuan.liao@linux.intel.com \
--to=yung-chuan.liao@linux.intel.com \
--cc=alsa-devel@alsa-project.org \
--cc=bard.liao@intel.com \
--cc=broonie@kernel.org \
--cc=gregkh@linuxfoundation.org \
--cc=hui.wang@canonical.com \
--cc=jank@cadence.com \
--cc=linux-kernel@vger.kernel.org \
--cc=pierre-louis.bossart@linux.intel.com \
--cc=rander.wang@linux.intel.com \
--cc=ranjani.sridharan@linux.intel.com \
--cc=sanyog.r.kale@intel.com \
--cc=srinivas.kandagatla@linaro.org \
--cc=tiwai@suse.de \
--cc=vinod.koul@linaro.org \
--cc=vkoul@kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox
all inboxes | Powered by JetHome®