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authorTakashi Iwai <tiwai@suse.de>2015-04-13 14:14:29 +0200
committerTakashi Iwai <tiwai@suse.de>2015-04-13 14:14:29 +0200
commitce4524e5a78123fbf2db5b1549798c91a6d98294 (patch)
treefc6450c80af14542f8bdb6b4726674669d259969 /drivers/net/can/flexcan.c
parentf2aa111041ce36b94e651d882458dea502e76721 (diff)
parent7667428f80526d908124e0647ac5dbe3dad88900 (diff)
Merge tag 'asoc-v4.1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus
ASoC: Updates for v4.1 More updates for v4.1, pretty much all drivers: - Lots of cleanups from Lars, mainly moving things from the CODEC level to the card level. - Continuing improvements to rcar from Morimoto-san, pcm512x from Howard and Peter, the Intel platforms from Vinod, Jie, Jin and Han, and to rt5670 from Bard. - Support for some non-DSP Qualcomm platforms, Google's Storm platform, Maxmim MAX98925 CODECs and the Ingenic JZ4780 SoC.
Diffstat (limited to 'drivers/net/can/flexcan.c')
-rw-r--r--drivers/net/can/flexcan.c18
1 files changed, 11 insertions, 7 deletions
diff --git a/drivers/net/can/flexcan.c b/drivers/net/can/flexcan.c
index 80c46ad4cee4..ad0a7e8c2c2b 100644
--- a/drivers/net/can/flexcan.c
+++ b/drivers/net/can/flexcan.c
@@ -592,13 +592,12 @@ static int flexcan_poll_state(struct net_device *dev, u32 reg_esr)
rx_state = unlikely(reg_esr & FLEXCAN_ESR_RX_WRN) ?
CAN_STATE_ERROR_WARNING : CAN_STATE_ERROR_ACTIVE;
new_state = max(tx_state, rx_state);
- } else if (unlikely(flt == FLEXCAN_ESR_FLT_CONF_PASSIVE)) {
+ } else {
__flexcan_get_berr_counter(dev, &bec);
- new_state = CAN_STATE_ERROR_PASSIVE;
+ new_state = flt == FLEXCAN_ESR_FLT_CONF_PASSIVE ?
+ CAN_STATE_ERROR_PASSIVE : CAN_STATE_BUS_OFF;
rx_state = bec.rxerr >= bec.txerr ? new_state : 0;
tx_state = bec.rxerr <= bec.txerr ? new_state : 0;
- } else {
- new_state = CAN_STATE_BUS_OFF;
}
/* state hasn't changed */
@@ -1158,12 +1157,19 @@ static int flexcan_probe(struct platform_device *pdev)
const struct flexcan_devtype_data *devtype_data;
struct net_device *dev;
struct flexcan_priv *priv;
+ struct regulator *reg_xceiver;
struct resource *mem;
struct clk *clk_ipg = NULL, *clk_per = NULL;
void __iomem *base;
int err, irq;
u32 clock_freq = 0;
+ reg_xceiver = devm_regulator_get(&pdev->dev, "xceiver");
+ if (PTR_ERR(reg_xceiver) == -EPROBE_DEFER)
+ return -EPROBE_DEFER;
+ else if (IS_ERR(reg_xceiver))
+ reg_xceiver = NULL;
+
if (pdev->dev.of_node)
of_property_read_u32(pdev->dev.of_node,
"clock-frequency", &clock_freq);
@@ -1224,9 +1230,7 @@ static int flexcan_probe(struct platform_device *pdev)
priv->pdata = dev_get_platdata(&pdev->dev);
priv->devtype_data = devtype_data;
- priv->reg_xceiver = devm_regulator_get(&pdev->dev, "xceiver");
- if (IS_ERR(priv->reg_xceiver))
- priv->reg_xceiver = NULL;
+ priv->reg_xceiver = reg_xceiver;
netif_napi_add(dev, &priv->napi, flexcan_poll, FLEXCAN_NAPI_WEIGHT);