Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 4723f2b8 authored by Fabio Baltieri's avatar Fabio Baltieri Committed by Marc Kleine-Budde
Browse files

can: at91_can: add LED trigger support 



Add support for canbus activity led indicators on at91_can devices by
calling appropriate can_led functions.

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

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 adccadb9

drivers/net/can/at91_can.c

+10 −0
Original line number Diff line number Diff line
@@ -37,6 +37,7 @@ 


#include <linux/can/dev.h>

#include <linux/can/error.h>

#include <linux/can/led.h>



#define AT91_MB_MASK(i)		((1 << (i)) - 1)
@@ -641,6 +642,8 @@ static void at91_read_msg(struct net_device *dev, unsigned int mb) 


	stats->rx_packets++;

	stats->rx_bytes += cf->can_dlc;



	can_led_event(dev, CAN_LED_EVENT_RX);

}



/**
@@ -875,6 +878,7 @@ static void at91_irq_tx(struct net_device *dev, u32 reg_sr) 
			/* _NOTE_: subtract AT91_MB_TX_FIRST offset from mb! */

			can_get_echo_skb(dev, mb - get_mb_tx_first(priv));

			dev->stats.tx_packets++;

			can_led_event(dev, CAN_LED_EVENT_TX);

		}

	}
@@ -1128,6 +1132,8 @@ static int at91_open(struct net_device *dev) 
		goto out_close;

	}



	can_led_event(dev, CAN_LED_EVENT_OPEN);



	/* start chip and queuing */

	at91_chip_start(dev);

	napi_enable(&priv->napi);
@@ -1159,6 +1165,8 @@ static int at91_close(struct net_device *dev) 


	close_candev(dev);



	can_led_event(dev, CAN_LED_EVENT_STOP);



	return 0;

}
@@ -1321,6 +1329,8 @@ static int at91_can_probe(struct platform_device *pdev) 
		goto exit_free;

	}



	devm_can_led_init(dev);



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

		 priv->reg_base, dev->irq);