linux-kernel - [PATCH v4 10/15] can: grcan: Add saving and restoring of CAN FD baud-rate registers

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20260128144921.5458-11-arun.muthusamy@gaisler.com>
Date: Wed, 28 Jan 2026 15:49:16 +0100
From: Arun Muthusamy <arun.muthusamy@...sler.com>
To: robh@...nel.org,
	krzk+dt@...nel.org,
	conor+dt@...nel.org,
	mkl@...gutronix.de,
	mailhol@...nel.org
Cc: devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	linux-can@...r.kernel.org,
	Daniel Hellstrom <daniel@...sler.com>,
	Arun Muthusamy <arun.muthusamy@...sler.com>
Subject: [PATCH v4 10/15] can: grcan: Add saving and restoring of CAN FD baud-rate registers

From: Daniel Hellstrom <daniel@...sler.com>

While reset the GRCAN baud-rates are preserved, since GRCANFD has the
baud-rate in different registers we need to add saving of those
registers too.

Signed-off-by: Daniel Hellstrom <daniel@...sler.com>
Signed-off-by: Arun Muthusamy <arun.muthusamy@...sler.com>
---
 drivers/net/can/grcan.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/net/can/grcan.c b/drivers/net/can/grcan.c
index 13dc4989f067..0ceda12335bc 100644
--- a/drivers/net/can/grcan.c
+++ b/drivers/net/can/grcan.c
@@ -525,6 +525,8 @@ static void grcan_reset(struct net_device *dev)

 	/* Turn off hardware filtering - regs->rxcode set to 0 by reset */
 	grcan_write_reg(&regs->rxmask, 0);
+
+	priv->hwcap->set_bittiming(dev);
 }

 /* stop device without changing any configurations */
--
2.51.0