netdev - [PATCH 2/7] can: m_can: Remove coalesing disable in isr during suspend

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Message-ID: <20240726195944.2414812-3-msp@baylibre.com>
Date: Fri, 26 Jul 2024 21:59:39 +0200
From: Markus Schneider-Pargmann <msp@...libre.com>
To: Chandrasekar Ramakrishnan <rcsekar@...sung.com>,
	Marc Kleine-Budde <mkl@...gutronix.de>,
	Vincent Mailhol <mailhol.vincent@...adoo.fr>,
	"David S . Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>,
	Paolo Abeni <pabeni@...hat.com>,
	Markus Schneider-Pargmann <msp@...libre.com>,
	Martin Hundebøll <martin@...nix.com>,
	Michal Kubiak <michal.kubiak@...el.com>,
	Simon Horman <horms@...nel.org>,
	Tony Lindgren <tony@...mide.com>,
	Judith Mendez <jm@...com>
Cc: Matthias Schiffer <matthias.schiffer@...tq-group.com>,
	Linux regression tracking <regressions@...mhuis.info>,
	linux-can@...r.kernel.org,
	netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH 2/7] can: m_can: Remove coalesing disable in isr during suspend

We don't need to disable coalescing when the interrupt handler executes
while the chip is suspended. The coalescing is already reset during
suspend.

Fixes: 07f25091ca02 ("can: m_can: Implement receive coalescing")
Signed-off-by: Markus Schneider-Pargmann <msp@...libre.com>
---
 drivers/net/can/m_can/m_can.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/net/can/m_can/m_can.c b/drivers/net/can/m_can/m_can.c
index 9d7d551e3534..fd600ab93218 100644
--- a/drivers/net/can/m_can/m_can.c
+++ b/drivers/net/can/m_can/m_can.c
@@ -1223,10 +1223,8 @@ static irqreturn_t m_can_isr(int irq, void *dev_id)
 	struct m_can_classdev *cdev = netdev_priv(dev);
 	u32 ir;
 
-	if (pm_runtime_suspended(cdev->dev)) {
-		m_can_coalescing_disable(cdev);
+	if (pm_runtime_suspended(cdev->dev))
 		return IRQ_NONE;
-	}
 
 	ir = m_can_read(cdev, M_CAN_IR);
 	m_can_coalescing_update(cdev, ir);
-- 
2.45.2