netdev - [PATCH net-next 14/29] can: gs_usb: add ability to enable / disable berr reporting

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Message-Id: <20221026084007.1583333-15-mkl@pengutronix.de>
Date:   Wed, 26 Oct 2022 10:39:52 +0200
From:   Marc Kleine-Budde <mkl@...gutronix.de>
To:     netdev@...r.kernel.org
Cc:     davem@...emloft.net, kuba@...nel.org, linux-can@...r.kernel.org,
        kernel@...gutronix.de, Jeroen Hofstee <jhofstee@...tronenergy.com>,
        Marc Kleine-Budde <mkl@...gutronix.de>
Subject: [PATCH net-next 14/29] can: gs_usb: add ability to enable / disable berr reporting

From: Jeroen Hofstee <jhofstee@...tronenergy.com>

The open source firmware candleLight report bus errors
unconditionally. This adds support to enable / disable bus error
reporting with the standard netlink property.

Signed-off-by: Jeroen Hofstee <jhofstee@...tronenergy.com>
Link: https://lore.kernel.org/all/20221019221016.1659260-6-mkl@pengutronix.de
Signed-off-by: Marc Kleine-Budde <mkl@...gutronix.de>
---
 drivers/net/can/usb/gs_usb.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/net/can/usb/gs_usb.c b/drivers/net/can/usb/gs_usb.c
index 68e474a762c5..e2e23467caf2 100644
--- a/drivers/net/can/usb/gs_usb.c
+++ b/drivers/net/can/usb/gs_usb.c
@@ -921,6 +921,9 @@ static int gs_can_open(struct net_device *netdev)
 	if (ctrlmode & CAN_CTRLMODE_ONE_SHOT)
 		flags |= GS_CAN_MODE_ONE_SHOT;
 
+	if (ctrlmode & CAN_CTRLMODE_BERR_REPORTING)
+		flags |= GS_CAN_MODE_BERR_REPORTING;
+
 	if (ctrlmode & CAN_CTRLMODE_FD)
 		flags |= GS_CAN_MODE_FD;
 
@@ -1226,6 +1229,9 @@ static struct gs_can *gs_make_candev(unsigned int channel,
 		}
 	}
 
+	if (feature & GS_CAN_FEATURE_BERR_REPORTING)
+		dev->can.ctrlmode_supported |= CAN_CTRLMODE_BERR_REPORTING;
+
 	/* The CANtact Pro from LinkLayer Labs is based on the
 	 * LPC54616 µC, which is affected by the NXP LPC USB transfer
 	 * erratum. However, the current firmware (version 2) doesn't
-- 
2.35.1