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path: root/drivers/net/can/ti_hecc.c
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Diffstat (limited to 'drivers/net/can/ti_hecc.c')
-rw-r--r--drivers/net/can/ti_hecc.c56
1 files changed, 21 insertions, 35 deletions
diff --git a/drivers/net/can/ti_hecc.c b/drivers/net/can/ti_hecc.c
index 73245d8836a9..1d3dbf28b105 100644
--- a/drivers/net/can/ti_hecc.c
+++ b/drivers/net/can/ti_hecc.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* TI HECC (CAN) device driver
*
@@ -6,16 +7,6 @@
*
* Copyright (C) 2009 Texas Instruments Incorporated - http://www.ti.com/
* Copyright (C) 2019 Jeroen Hofstee <jhofstee@victronenergy.com>
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation version 2.
- *
- * This program is distributed as is WITHOUT ANY WARRANTY of any
- * kind, whether express or implied; without even the implied warranty
- * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
*/
#include <linux/module.h>
@@ -23,18 +14,17 @@
#include <linux/types.h>
#include <linux/interrupt.h>
#include <linux/errno.h>
+#include <linux/ethtool.h>
#include <linux/netdevice.h>
#include <linux/skbuff.h>
#include <linux/platform_device.h>
#include <linux/clk.h>
#include <linux/io.h>
#include <linux/of.h>
-#include <linux/of_device.h>
#include <linux/regulator/consumer.h>
#include <linux/can/dev.h>
#include <linux/can/error.h>
-#include <linux/can/led.h>
#include <linux/can/rx-offload.h>
#define DRV_NAME "ti_hecc"
@@ -393,7 +383,7 @@ static void ti_hecc_start(struct net_device *ndev)
* overflows instead of the hardware silently dropping the
* messages.
*/
- mbx_mask = ~BIT(HECC_RX_LAST_MBOX);
+ mbx_mask = ~BIT_U32(HECC_RX_LAST_MBOX);
hecc_write(priv, HECC_CANOPC, mbx_mask);
/* Enable interrupts */
@@ -479,7 +469,7 @@ static netdev_tx_t ti_hecc_xmit(struct sk_buff *skb, struct net_device *ndev)
u32 mbxno, mbx_mask, data;
unsigned long flags;
- if (can_dropped_invalid_skb(ndev, skb))
+ if (can_dev_dropped_skb(ndev, skb))
return NETDEV_TX_OK;
mbxno = get_tx_head_mb(priv);
@@ -633,8 +623,8 @@ static int ti_hecc_error(struct net_device *ndev, int int_status,
cf->data[3] = CAN_ERR_PROT_LOC_ACK;
timestamp = hecc_read(priv, HECC_CANLNT);
- err = can_rx_offload_queue_sorted(&priv->offload, skb,
- timestamp);
+ err = can_rx_offload_queue_timestamp(&priv->offload, skb,
+ timestamp);
if (err)
ndev->stats.rx_fifo_errors++;
}
@@ -663,12 +653,13 @@ static void ti_hecc_change_state(struct net_device *ndev,
can_change_state(priv->ndev, cf, tx_state, rx_state);
if (max(tx_state, rx_state) != CAN_STATE_BUS_OFF) {
+ cf->can_id |= CAN_ERR_CNT;
cf->data[6] = hecc_read(priv, HECC_CANTEC);
cf->data[7] = hecc_read(priv, HECC_CANREC);
}
timestamp = hecc_read(priv, HECC_CANLNT);
- err = can_rx_offload_queue_sorted(&priv->offload, skb, timestamp);
+ err = can_rx_offload_queue_timestamp(&priv->offload, skb, timestamp);
if (err)
ndev->stats.rx_fifo_errors++;
}
@@ -756,10 +747,9 @@ static irqreturn_t ti_hecc_interrupt(int irq, void *dev_id)
spin_unlock_irqrestore(&priv->mbx_lock, flags);
stamp = hecc_read_stamp(priv, mbxno);
stats->tx_bytes +=
- can_rx_offload_get_echo_skb(&priv->offload,
- mbxno, stamp, NULL);
+ can_rx_offload_get_echo_skb_queue_timestamp(&priv->offload,
+ mbxno, stamp, NULL);
stats->tx_packets++;
- can_led_event(ndev, CAN_LED_EVENT_TX);
--priv->tx_tail;
}
@@ -786,6 +776,8 @@ static irqreturn_t ti_hecc_interrupt(int irq, void *dev_id)
int_status = hecc_read(priv, HECC_CANGIF0);
}
+ can_rx_offload_irq_finish(&priv->offload);
+
return IRQ_HANDLED;
}
@@ -812,8 +804,6 @@ static int ti_hecc_open(struct net_device *ndev)
return err;
}
- can_led_event(ndev, CAN_LED_EVENT_OPEN);
-
ti_hecc_start(ndev);
can_rx_offload_enable(&priv->offload);
netif_start_queue(ndev);
@@ -832,8 +822,6 @@ static int ti_hecc_close(struct net_device *ndev)
close_candev(ndev);
ti_hecc_transceiver_switch(priv, 0);
- can_led_event(ndev, CAN_LED_EVENT_STOP);
-
return 0;
}
@@ -841,7 +829,10 @@ static const struct net_device_ops ti_hecc_netdev_ops = {
.ndo_open = ti_hecc_open,
.ndo_stop = ti_hecc_close,
.ndo_start_xmit = ti_hecc_xmit,
- .ndo_change_mtu = can_change_mtu,
+};
+
+static const struct ethtool_ops ti_hecc_ethtool_ops = {
+ .get_ts_info = ethtool_op_get_ts_info,
};
static const struct of_device_id ti_hecc_dt_ids[] = {
@@ -857,7 +848,6 @@ static int ti_hecc_probe(struct platform_device *pdev)
struct net_device *ndev = (struct net_device *)0;
struct ti_hecc_priv *priv;
struct device_node *np = pdev->dev.of_node;
- struct resource *irq;
struct regulator *reg_xceiver;
int err = -ENODEV;
@@ -902,9 +892,9 @@ static int ti_hecc_probe(struct platform_device *pdev)
goto probe_exit_candev;
}
- irq = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
- if (!irq) {
- dev_err(&pdev->dev, "No irq resource\n");
+ ndev->irq = platform_get_irq(pdev, 0);
+ if (ndev->irq < 0) {
+ err = ndev->irq;
goto probe_exit_candev;
}
@@ -918,11 +908,11 @@ static int ti_hecc_probe(struct platform_device *pdev)
priv->can.ctrlmode_supported = CAN_CTRLMODE_3_SAMPLES;
spin_lock_init(&priv->mbx_lock);
- ndev->irq = irq->start;
ndev->flags |= IFF_ECHO;
platform_set_drvdata(pdev, ndev);
SET_NETDEV_DEV(ndev, &pdev->dev);
ndev->netdev_ops = &ti_hecc_netdev_ops;
+ ndev->ethtool_ops = &ti_hecc_ethtool_ops;
priv->clk = clk_get(&pdev->dev, "hecc_ck");
if (IS_ERR(priv->clk)) {
@@ -954,8 +944,6 @@ static int ti_hecc_probe(struct platform_device *pdev)
goto probe_exit_offload;
}
- devm_can_led_init(ndev);
-
dev_info(&pdev->dev, "device registered (reg_base=%p, irq=%u)\n",
priv->base, (u32)ndev->irq);
@@ -973,7 +961,7 @@ probe_exit_candev:
return err;
}
-static int ti_hecc_remove(struct platform_device *pdev)
+static void ti_hecc_remove(struct platform_device *pdev)
{
struct net_device *ndev = platform_get_drvdata(pdev);
struct ti_hecc_priv *priv = netdev_priv(ndev);
@@ -983,8 +971,6 @@ static int ti_hecc_remove(struct platform_device *pdev)
clk_put(priv->clk);
can_rx_offload_del(&priv->offload);
free_candev(ndev);
-
- return 0;
}
#ifdef CONFIG_PM
generated by cgit (git 2.34.1) at 2025-12-25 02:45:44 +0000