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Subject[PATCH can-next 2/5] can: ti_hecc: add LED trigger support
Date
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: Fabio Baltieri <fabio.baltieri@gmail.com>
---
drivers/net/can/ti_hecc.c | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/drivers/net/can/ti_hecc.c b/drivers/net/can/ti_hecc.c
index 527dbcf..0a45ba2 100644
--- a/drivers/net/can/ti_hecc.c
+++ b/drivers/net/can/ti_hecc.c
@@ -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);

--
1.7.11.rc1.9.gf623ca1.dirty


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