From: JB Tsai <jb.tsai@mediatek.com>
To: <nbd@nbd.name>, <lorenzo@kernel.org>
Cc: <linux-wireless@vger.kernel.org>,
<linux-mediatek@lists.infradead.org>, <Deren.Wu@mediatek.com>,
<Sean.Wang@mediatek.com>, <Quan.Zhou@mediatek.com>,
<Ryder.Lee@mediatek.com>, <Leon.Yen@mediatek.com>,
<litien.chang@mediatek.com>, <jeff.hsu@mediatek.com>,
<jb.tsai@mediatek.com>, Jeff Hsu <Jeff.Hsu@mediatek.com>
Subject: [PATCH] wifi: mt76: mt7925: Add coredump callback in pci_driver
Date: Tue, 5 May 2026 13:52:52 +0800 [thread overview]
Message-ID: <20260505055252.2558613-1-jb.tsai@mediatek.com> (raw)
From: Jeff Hsu <Jeff.Hsu@mediatek.com>
Register coredump callback(mt7925_coredump) in pci_driver,
it can let platform can trigger core dump to collect the
log and recover back after coredump complete without debugfs
Some platform not have debugfs
Signed-off-by: Jeff Hsu <Jeff.Hsu@mediatek.com>
---
drivers/net/wireless/mediatek/mt76/mt7925/mcu.c | 1 +
drivers/net/wireless/mediatek/mt76/mt7925/pci.c | 12 ++++++++++++
2 files changed, 13 insertions(+)
diff --git a/drivers/net/wireless/mediatek/mt76/mt7925/mcu.c b/drivers/net/wireless/mediatek/mt76/mt7925/mcu.c
index 37cdf3e8a067..cd502166a7f9 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7925/mcu.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7925/mcu.c
@@ -1014,6 +1014,7 @@ int mt7925_mcu_chip_config(struct mt792x_dev *dev, const char *cmd)
return mt76_mcu_send_msg(&dev->mt76, MCU_UNI_CMD(CHIP_CONFIG),
&req, sizeof(req), false);
}
+EXPORT_SYMBOL_GPL(mt7925_mcu_chip_config);
int mt7925_mcu_set_deep_sleep(struct mt792x_dev *dev, bool enable)
{
diff --git a/drivers/net/wireless/mediatek/mt76/mt7925/pci.c b/drivers/net/wireless/mediatek/mt76/mt7925/pci.c
index c4161754c01d..5b3e62e5f157 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7925/pci.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7925/pci.c
@@ -610,6 +610,17 @@ static int mt7925_pci_restore(struct device *device)
return _mt7925_pci_resume(device, true);
}
+static void mt7925_coredump(struct device *dev)
+{
+ struct pci_dev *pdev = to_pci_dev(device);
+ struct mt76_dev *mdev = pci_get_drvdata(pdev);
+ struct mt792x_dev *dev_792x = container_of(mdev, struct mt792x_dev, mt76);
+
+ mt792x_mutex_acquire(dev_792x);
+ mt7925_mcu_chip_config(dev_792x, "assert");
+ mt792x_mutex_release(dev_792x);
+}
+
static const struct dev_pm_ops mt7925_pm_ops = {
.suspend = pm_sleep_ptr(mt7925_pci_suspend),
.resume = pm_sleep_ptr(mt7925_pci_resume),
@@ -626,6 +637,7 @@ static struct pci_driver mt7925_pci_driver = {
.remove = mt7925_pci_remove,
.shutdown = mt7925_pci_shutdown,
.driver.pm = pm_sleep_ptr(&mt7925_pm_ops),
+ .driver.coredump = mt7925_coredump,
};
module_pci_driver(mt7925_pci_driver);
--
2.45.2
reply other threads:[~2026-05-05 5:52 UTC|newest]
Thread overview: [no followups] expand[flat|nested] mbox.gz Atom feed
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=20260505055252.2558613-1-jb.tsai@mediatek.com \
--to=jb.tsai@mediatek.com \
--cc=Deren.Wu@mediatek.com \
--cc=Leon.Yen@mediatek.com \
--cc=Quan.Zhou@mediatek.com \
--cc=Ryder.Lee@mediatek.com \
--cc=Sean.Wang@mediatek.com \
--cc=jeff.hsu@mediatek.com \
--cc=linux-mediatek@lists.infradead.org \
--cc=linux-wireless@vger.kernel.org \
--cc=litien.chang@mediatek.com \
--cc=lorenzo@kernel.org \
--cc=nbd@nbd.name \
/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