evie/android_kernel_oneplus_msm8998
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Merge branch 'master' of git://gitorious.org/linux-can/linux-can

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This commit is contained in:
David S. Miller 2012-06-04 11:51:37 -04:00
commit 3ab2cdd028
3 changed files with 11 additions and 8 deletions
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16
drivers/net/can/c_can/c_can.c
View file

@ -686,7 +686,7 @@ static int c_can_get_berr_counter(const struct net_device *dev,
* *
* We iterate from priv->tx_echo to priv->tx_next and check if the * We iterate from priv->tx_echo to priv->tx_next and check if the
* packet has been transmitted, echo it back to the CAN framework. * packet has been transmitted, echo it back to the CAN framework.
* If we discover a not yet transmitted package, stop looking for more. * If we discover a not yet transmitted packet, stop looking for more.
*/ */
static void c_can_do_tx(struct net_device *dev) static void c_can_do_tx(struct net_device *dev)
{ {
@ -698,7 +698,7 @@ static void c_can_do_tx(struct net_device *dev)
for (/* nix */; (priv->tx_next - priv->tx_echo) > 0; priv->tx_echo++) { for (/* nix */; (priv->tx_next - priv->tx_echo) > 0; priv->tx_echo++) {
msg_obj_no = get_tx_echo_msg_obj(priv); msg_obj_no = get_tx_echo_msg_obj(priv);
val = c_can_read_reg32(priv, &priv->regs->txrqst1); val = c_can_read_reg32(priv, &priv->regs->txrqst1);
if (!(val & (1 << msg_obj_no))) { if (!(val & (1 << (msg_obj_no - 1)))) {
can_get_echo_skb(dev, can_get_echo_skb(dev,
msg_obj_no - C_CAN_MSG_OBJ_TX_FIRST); msg_obj_no - C_CAN_MSG_OBJ_TX_FIRST);
stats->tx_bytes += priv->read_reg(priv, stats->tx_bytes += priv->read_reg(priv,
@ -706,6 +706,8 @@ static void c_can_do_tx(struct net_device *dev)
& IF_MCONT_DLC_MASK; & IF_MCONT_DLC_MASK;
stats->tx_packets++; stats->tx_packets++;
c_can_inval_msg_object(dev, 0, msg_obj_no); c_can_inval_msg_object(dev, 0, msg_obj_no);
} else {
break;
} }
} }
@ -950,7 +952,7 @@ static int c_can_poll(struct napi_struct *napi, int quota)
struct net_device *dev = napi->dev; struct net_device *dev = napi->dev;
struct c_can_priv *priv = netdev_priv(dev); struct c_can_priv *priv = netdev_priv(dev);
irqstatus = priv->read_reg(priv, &priv->regs->interrupt); irqstatus = priv->irqstatus;
if (!irqstatus) if (!irqstatus)
goto end; goto end;
@ -1028,12 +1030,11 @@ end:
static irqreturn_t c_can_isr(int irq, void *dev_id) static irqreturn_t c_can_isr(int irq, void *dev_id)
{ {
u16 irqstatus;
struct net_device *dev = (struct net_device *)dev_id; struct net_device *dev = (struct net_device *)dev_id;
struct c_can_priv *priv = netdev_priv(dev); struct c_can_priv *priv = netdev_priv(dev);
irqstatus = priv->read_reg(priv, &priv->regs->interrupt); priv->irqstatus = priv->read_reg(priv, &priv->regs->interrupt);
if (!irqstatus) if (!priv->irqstatus)
return IRQ_NONE; return IRQ_NONE;
/* disable all interrupts and schedule the NAPI */ /* disable all interrupts and schedule the NAPI */
@ -1063,10 +1064,11 @@ static int c_can_open(struct net_device *dev)
goto exit_irq_fail; goto exit_irq_fail;
} }
napi_enable(&priv->napi);
/* start the c_can controller */ /* start the c_can controller */
c_can_start(dev); c_can_start(dev);
napi_enable(&priv->napi);
netif_start_queue(dev); netif_start_queue(dev);
return 0; return 0;

1
drivers/net/can/c_can/c_can.h
View file

@ -76,6 +76,7 @@ struct c_can_priv {
unsigned int tx_next; unsigned int tx_next;
unsigned int tx_echo; unsigned int tx_echo;
void *priv; /* for board-specific data */ void *priv; /* for board-specific data */
u16 irqstatus;
}; };
struct net_device *alloc_c_can_dev(void); struct net_device *alloc_c_can_dev(void);

2
drivers/net/can/cc770/cc770_platform.c
View file

@ -154,7 +154,7 @@ static int __devinit cc770_get_platform_data(struct platform_device *pdev,
struct cc770_platform_data *pdata = pdev->dev.platform_data; struct cc770_platform_data *pdata = pdev->dev.platform_data;
priv->can.clock.freq = pdata->osc_freq; priv->can.clock.freq = pdata->osc_freq;
if (priv->cpu_interface | CPUIF_DSC) if (priv->cpu_interface & CPUIF_DSC)
priv->can.clock.freq /= 2; priv->can.clock.freq /= 2;
priv->clkout = pdata->cor; priv->clkout = pdata->cor;
priv->bus_config = pdata->bcr; priv->bus_config = pdata->bcr;