summaryrefslogtreecommitdiff
path: root/drivers/net
diff options
context:
space:
mode:
authorDong Aisheng <b29396@freescale.com>2012-05-16 16:59:03 +0800
committerJason Liu <r64343@freescale.com>2012-07-20 13:37:30 +0800
commit07af8fc0f20f3f6d4e29463875ec6843307e2fcb (patch)
tree3c223e18144feadbaede451e87176a1209ab7835 /drivers/net
parent90fb0c14e9d8ea1e98767ca885b8a1c7b7384f4b (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>
Diffstat (limited to 'drivers/net')
-rw-r--r--drivers/net/can/flexcan.c11
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, &regs->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)