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Commit 5090f805 authored by Fabio Baltieri's avatar Fabio Baltieri Committed by Marc Kleine-Budde
Browse files

can: c_can: add LED trigger support 



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

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

Cc: Bhupesh Sharma <bhupesh.sharma@st.com>
Cc: AnilKumar Ch <anilkumar@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 d7ff5aae

drivers/net/can/c_can/c_can.c

+10 −0
Original line number Diff line number Diff line
@@ -39,6 +39,7 @@ 
#include <linux/can.h>

#include <linux/can/dev.h>

#include <linux/can/error.h>

#include <linux/can/led.h>



#include "c_can.h"
@@ -477,6 +478,8 @@ static int c_can_read_msg_object(struct net_device *dev, int iface, int ctrl) 
	stats->rx_packets++;

	stats->rx_bytes += frame->can_dlc;



	can_led_event(dev, CAN_LED_EVENT_RX);



	return 0;

}
@@ -751,6 +754,7 @@ static void c_can_do_tx(struct net_device *dev) 
					C_CAN_IFACE(MSGCTRL_REG, 0))

					& IF_MCONT_DLC_MASK;

			stats->tx_packets++;

			can_led_event(dev, CAN_LED_EVENT_TX);

			c_can_inval_msg_object(dev, 0, msg_obj_no);

		} else {

			break;
@@ -1115,6 +1119,8 @@ static int c_can_open(struct net_device *dev) 


	napi_enable(&priv->napi);



	can_led_event(dev, CAN_LED_EVENT_OPEN);



	/* start the c_can controller */

	c_can_start(dev);
@@ -1143,6 +1149,8 @@ static int c_can_close(struct net_device *dev) 
	c_can_reset_ram(priv, false);

	c_can_pm_runtime_put_sync(priv);



	can_led_event(dev, CAN_LED_EVENT_STOP);



	return 0;

}
@@ -1268,6 +1276,8 @@ int register_c_can_dev(struct net_device *dev) 
	err = register_candev(dev);

	if (err)

		c_can_pm_runtime_disable(priv);

	else

		devm_can_led_init(dev);



	return err;

}