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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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