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Commit d7ff5aae authored by Fabio Baltieri's avatar Fabio Baltieri Committed by Marc Kleine-Budde
Browse files

can: ti_hecc: add LED trigger support 



Add support for canbus activity led indicators on ti_hecc devices by
calling appropriate can_led functions.

These are only enabled when CONFIG_CAN_LEDS is Y, becomes no-op
otherwise.

Cc: Anant Gole <anantgole@ti.com>
Cc: Wolfgang Grandegger <wg@grandegger.com>
Cc: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: default avatarFabio Baltieri <fabio.baltieri@gmail.com>
Signed-off-by: default avatarMarc Kleine-Budde <mkl@pengutronix.de>
parent 4723f2b8

drivers/net/can/ti_hecc.c

+10 −0
Original line number Diff line number Diff line
@@ -50,6 +50,7 @@ 


#include <linux/can/dev.h>

#include <linux/can/error.h>

#include <linux/can/led.h>

#include <linux/can/platform/ti_hecc.h>



#define DRV_NAME "ti_hecc"
@@ -593,6 +594,7 @@ static int ti_hecc_rx_pkt(struct ti_hecc_priv *priv, int mbxno) 
	spin_unlock_irqrestore(&priv->mbx_lock, flags);



	stats->rx_bytes += cf->can_dlc;

	can_led_event(priv->ndev, CAN_LED_EVENT_RX);

	netif_receive_skb(skb);

	stats->rx_packets++;
@@ -796,6 +798,7 @@ static irqreturn_t ti_hecc_interrupt(int irq, void *dev_id) 
			stats->tx_bytes += hecc_read_mbx(priv, mbxno,

						HECC_CANMCF) & 0xF;

			stats->tx_packets++;

			can_led_event(ndev, CAN_LED_EVENT_TX);

			can_get_echo_skb(ndev, mbxno);

			--priv->tx_tail;

		}
@@ -851,6 +854,8 @@ static int ti_hecc_open(struct net_device *ndev) 
		return err;

	}



	can_led_event(ndev, CAN_LED_EVENT_OPEN);



	ti_hecc_start(ndev);

	napi_enable(&priv->napi);

	netif_start_queue(ndev);
@@ -869,6 +874,8 @@ 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;

}
@@ -961,6 +968,9 @@ static int ti_hecc_probe(struct platform_device *pdev) 
		dev_err(&pdev->dev, "register_candev() failed\n");

		goto probe_exit_clk;

	}



	devm_can_led_init(ndev);



	dev_info(&pdev->dev, "device registered (reg_base=%p, irq=%u)\n",

		priv->base, (u32) ndev->irq);