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Date: Sun, 16 Dec 2012 12:08:26 +0100 From: Fabio Baltieri <fabio.baltieri@...il.com> To: Marc Kleine-Budde <mkl@...gutronix.de>, linux-can@...r.kernel.org Cc: Kurt Van Dijck <kurt.van.dijck@....be>, Wolfgang Grandegger <wg@...ndegger.com>, Oliver Hartkopp <socketcan@...tkopp.net>, linux-kernel@...r.kernel.org, Fabio Baltieri <fabio.baltieri@...il.com> Subject: [PATCH 2/9] can: flexcan: add LED trigger support Add support for canbus activity led indicators on flexcan devices by calling appropriate can_led_* functions. These are only enabled when CONFIG_CAN_LEDS is Y, becomes no-op otherwise. Cc: Oliver Hartkopp <socketcan@...tkopp.net> Cc: Wolfgang Grandegger <wg@...ndegger.com> Cc: Marc Kleine-Budde <mkl@...gutronix.de> Signed-off-by: Fabio Baltieri <fabio.baltieri@...il.com> --- drivers/net/can/flexcan.c | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/drivers/net/can/flexcan.c b/drivers/net/can/flexcan.c index 0289a6d..769d29e 100644 --- a/drivers/net/can/flexcan.c +++ b/drivers/net/can/flexcan.c @@ -23,6 +23,7 @@ #include <linux/can.h> #include <linux/can/dev.h> #include <linux/can/error.h> +#include <linux/can/led.h> #include <linux/can/platform/flexcan.h> #include <linux/clk.h> #include <linux/delay.h> @@ -564,6 +565,8 @@ static int flexcan_read_frame(struct net_device *dev) stats->rx_packets++; stats->rx_bytes += cf->can_dlc; + can_led_event(dev, CAN_LED_EVENT_RX); + return 1; } @@ -652,6 +655,7 @@ static irqreturn_t flexcan_irq(int irq, void *dev_id) if (reg_iflag1 & (1 << FLEXCAN_TX_BUF_ID)) { stats->tx_bytes += can_get_echo_skb(dev, 0); stats->tx_packets++; + can_led_event(dev, CAN_LED_EVENT_TX); flexcan_write((1 << FLEXCAN_TX_BUF_ID), ®s->iflag1); netif_wake_queue(dev); } @@ -865,6 +869,9 @@ static int flexcan_open(struct net_device *dev) err = flexcan_chip_start(dev); if (err) goto out_close; + + can_led_event(dev, CAN_LED_EVENT_OPEN); + napi_enable(&priv->napi); netif_start_queue(dev); @@ -893,6 +900,8 @@ static int flexcan_close(struct net_device *dev) close_candev(dev); + can_led_event(dev, CAN_LED_EVENT_STOP); + return 0; } @@ -1092,6 +1101,8 @@ static int flexcan_probe(struct platform_device *pdev) goto failed_register; } + devm_can_led_init(dev); + dev_info(&pdev->dev, "device registered (reg_base=%p, irq=%d)\n", priv->base, dev->irq); -- 1.7.12.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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