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From: Marc Kleine-Budde <mkl@pengutronix.de>
To: linux-can@vger.kernel.org
Cc: kernel@pengutronix.de, Dan Murphy <dmurphy@ti.com>,
	Sriram Dash <sriram.dash@samsung.com>,
	Sean Nyekjaer <sean@geanix.com>,
	Marc Kleine-Budde <mkl@pengutronix.de>
Subject: [net-rfc 2/2] can: tcan4x5x: fix bittiming const, use common bittiming from m_can driver
Date: Tue, 15 Dec 2020 11:32:38 +0100	[thread overview]
Message-ID: <20201215103238.524029-3-mkl@pengutronix.de> (raw)
In-Reply-To: <20201215103238.524029-1-mkl@pengutronix.de>

According to the TCAN4550 datasheet "SLLSF91 - DECEMBER 2018" the tcan4x5x has
the same bittiming constants as a m_can revision 3.2.x/3.3.0.

The tcan4x5x chip I'm using identifies itself as m_can revision 3.2.1, so
remove the tcan4x5x specific bittiming values and rely on the values in the
m_can driver, which are selected according to core revision.

Fixes: 5443c226ba91 ("can: tcan4x5x: Add tcan4x5x driver to the kernel")
Cc: Dan Murphy <dmurphy@ti.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
---
 drivers/net/can/m_can/tcan4x5x.c | 26 --------------------------
 1 file changed, 26 deletions(-)

diff --git a/drivers/net/can/m_can/tcan4x5x.c b/drivers/net/can/m_can/tcan4x5x.c
index 7347ab39c5b6..f726c5112294 100644
--- a/drivers/net/can/m_can/tcan4x5x.c
+++ b/drivers/net/can/m_can/tcan4x5x.c
@@ -129,30 +129,6 @@ struct tcan4x5x_priv {
 	int reg_offset;
 };
 
-static struct can_bittiming_const tcan4x5x_bittiming_const = {
-	.name = DEVICE_NAME,
-	.tseg1_min = 2,
-	.tseg1_max = 31,
-	.tseg2_min = 2,
-	.tseg2_max = 16,
-	.sjw_max = 16,
-	.brp_min = 1,
-	.brp_max = 32,
-	.brp_inc = 1,
-};
-
-static struct can_bittiming_const tcan4x5x_data_bittiming_const = {
-	.name = DEVICE_NAME,
-	.tseg1_min = 1,
-	.tseg1_max = 32,
-	.tseg2_min = 1,
-	.tseg2_max = 16,
-	.sjw_max = 16,
-	.brp_min = 1,
-	.brp_max = 32,
-	.brp_inc = 1,
-};
-
 static void tcan4x5x_check_wake(struct tcan4x5x_priv *priv)
 {
 	int wake_state = 0;
@@ -479,8 +455,6 @@ static int tcan4x5x_can_probe(struct spi_device *spi)
 	mcan_class->dev = &spi->dev;
 	mcan_class->ops = &tcan4x5x_ops;
 	mcan_class->is_peripheral = true;
-	mcan_class->bit_timing = &tcan4x5x_bittiming_const;
-	mcan_class->data_timing = &tcan4x5x_data_bittiming_const;
 	mcan_class->net->irq = spi->irq;
 
 	spi_set_drvdata(spi, priv);
-- 
2.29.2



  parent reply	other threads:[~2020-12-15 10:33 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-12-15 10:32 [RFC]: m_can fixes Marc Kleine-Budde
2020-12-15 10:32 ` [net-rfc 1/2] can: m_can: m_can_class_unregister(): remove erroneous m_can_clk_stop() Marc Kleine-Budde
2020-12-15 10:51   ` Sean Nyekjaer
2020-12-15 10:53     ` Marc Kleine-Budde
2020-12-15 10:32 ` Marc Kleine-Budde [this message]
2020-12-15 10:51   ` [net-rfc 2/2] can: tcan4x5x: fix bittiming const, use common bittiming from m_can driver Sean Nyekjaer
2020-12-15 10:52 ` [RFC]: m_can fixes Marc Kleine-Budde

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