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,
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,
mengdong.lin@intel.com, bard.liao@intel.com
Subject: [PATCH 5/5] soundwire: bus: only clear valid DPN interrupts
Date: Tue, 24 Nov 2020 09:33:18 +0800 [thread overview]
Message-ID: <20201124013318.8963-6-yung-chuan.liao@linux.intel.com> (raw)
In-Reply-To: <20201124013318.8963-1-yung-chuan.liao@linux.intel.com>
From: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Mirror the changes made for DP0 and don't modify reserved fields.
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com>
Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com>
---
drivers/soundwire/bus.c | 8 +++++---
1 file changed, 5 insertions(+), 3 deletions(-)
diff --git a/drivers/soundwire/bus.c b/drivers/soundwire/bus.c
index f66a804f9b74..d1e8c3a54976 100644
--- a/drivers/soundwire/bus.c
+++ b/drivers/soundwire/bus.c
@@ -1353,7 +1353,7 @@ static int sdw_handle_dp0_interrupt(struct sdw_slave *slave, u8 *slave_status)
static int sdw_handle_port_interrupt(struct sdw_slave *slave,
int port, u8 *slave_status)
{
- u8 clear = 0, impl_int_mask;
+ u8 clear, impl_int_mask;
int status, status2, ret, count = 0;
u32 addr;
@@ -1370,6 +1370,8 @@ static int sdw_handle_port_interrupt(struct sdw_slave *slave,
}
do {
+ clear = status & ~SDW_DPN_INTERRUPTS;
+
if (status & SDW_DPN_INT_TEST_FAIL) {
dev_err(&slave->dev, "Test fail for port:%d\n", port);
clear |= SDW_DPN_INT_TEST_FAIL;
@@ -1392,7 +1394,7 @@ static int sdw_handle_port_interrupt(struct sdw_slave *slave,
*slave_status = clear;
}
- /* clear the interrupt */
+ /* clear the interrupt but don't touch reserved fields */
ret = sdw_write(slave, addr, clear);
if (ret < 0) {
dev_err(slave->bus->dev,
@@ -1413,7 +1415,7 @@ static int sdw_handle_port_interrupt(struct sdw_slave *slave,
count++;
/* we can get alerts while processing so keep retrying */
- } while (status != 0 && count < SDW_READ_INTR_CLEAR_RETRY);
+ } 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");
--
2.17.1
next prev parent reply other threads:[~2020-11-24 13:26 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-11-24 1:33 [PATCH 0/5] soundwire: only clear valid interrupts Bard Liao
2020-11-24 1:33 ` [PATCH 1/5] soundwire: bus: add comments to explain interrupt loop filter Bard Liao
2020-11-24 1:33 ` [PATCH 2/5] soundwire: bus: reset slave_notify status at each loop Bard Liao
2020-11-24 1:33 ` [PATCH 3/5] soundwire: registers: add definitions for clearable interrupt fields Bard Liao
2020-11-24 1:33 ` [PATCH 4/5] soundwire: bus: only clear valid DP0 interrupts Bard Liao
2020-11-24 1:33 ` Bard Liao [this message]
2020-11-25 5:02 ` [PATCH 0/5] soundwire: only clear valid interrupts 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=20201124013318.8963-6-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=gregkh@linuxfoundation.org \
--cc=hui.wang@canonical.com \
--cc=jank@cadence.com \
--cc=linux-kernel@vger.kernel.org \
--cc=mengdong.lin@intel.com \
--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=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®