diff options
| author | Dong Aisheng <b29396@freescale.com> | 2012-05-16 16:59:03 +0800 |
|---|---|---|
| committer | Stefan Agner <stefan.agner@toradex.com> | 2014-06-17 09:26:44 +0200 |
| commit | 218fb818df422db5b90d8c3d7accd0ddfd7c52e6 (patch) | |
| tree | 0aee0bacb3db831134ba660fc8928088d839a7d1 | |
| parent | 768d4af538e6d1fbc3f3342d6179427fa3e22bfe (diff) | |
ENGR00171114 flexcan: enable can2 remote wakeup for mx6q
The root cause is missed to set CAN2_STOP_REQ in iomuxc
group register which is used to support can wakeup feature.
Signed-off-by: Dong Aisheng <b29396@freescale.com>
| -rw-r--r-- | drivers/net/can/flexcan.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/drivers/net/can/flexcan.c b/drivers/net/can/flexcan.c index 27dcf755debc..467b5355de89 100644 --- a/drivers/net/can/flexcan.c +++ b/drivers/net/can/flexcan.c @@ -195,6 +195,7 @@ struct flexcan_priv { struct clk *clk; struct flexcan_platform_data *pdata; enum flexcan_ip_version version; + int id; }; static struct can_bittiming_const flexcan_bittiming_const = { @@ -580,7 +581,8 @@ static irqreturn_t flexcan_irq(int irq, void *dev_id) if (reg_esr & FLEXCAN_ESR_WAK_INT) { /* first clear stop request then wakeup irq status */ if (priv->version >= FLEXCAN_VER_10_0_12) - mxc_iomux_set_gpr_register(13, 28, 1, 0); + /* CAN1/CAN2_STOP_REQ bit 28/29 in group 13 */ + mxc_iomux_set_gpr_register(13, 28 + priv->id, 1, 0); writel(FLEXCAN_ESR_WAK_INT, ®s->esr); } @@ -960,6 +962,9 @@ static int __devinit flexcan_probe(struct platform_device *pdev) resource_size_t mem_size; int err, irq; + if (pdev->id < 0) + return -ENODEV; + clk = clk_get(&pdev->dev, NULL); if (IS_ERR(clk)) { dev_err(&pdev->dev, "no clock defined\n"); @@ -1007,6 +1012,7 @@ static int __devinit flexcan_probe(struct platform_device *pdev) priv->base = base; priv->dev = dev; priv->clk = clk; + priv->id = pdev->id; priv->pdata = pdev->dev.platform_data; priv->version = pdev->id_entry->driver_data; @@ -1074,7 +1080,8 @@ static int flexcan_suspend(struct platform_device *pdev, pm_message_t state) /* enable stop request for wakeup */ if (priv->version >= FLEXCAN_VER_10_0_12) - mxc_iomux_set_gpr_register(13, 28, 1, 1); + /* CAN1/CAN2_STOP_REQ bit 28/29 in group 13 */ + mxc_iomux_set_gpr_register(13, 28 + priv->id, 1, 1); ret = irq_set_irq_wake(dev->irq, 1); if (ret) |