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linux-can-fixes-for-4.17-20180508

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Merge tag 'linux-can-fixes-for-4.17-20180508' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can

Marc Kleine-Budde says:

====================
pull-request: can 2018-05-08

this is a pull request for 7 patches for net/master.

The first patch is by Jakob Unterwurzacher and increases the severity of
bus-off messages in the generic CAN device infrastructure. The next two patches
are by Uwe Kleine-König and fix the endianess detection in the flexcan driver.
Jimmy Assarsson's patch for the kvaser driver corrects the stats counter for
dropped tx-messages. Geert Uytterhoeven provides one patch and Sergei Shtylyov
two patches for the rcan_canfd device tree binding description.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2018-05-08 10:19:53 -04:00
commit 42f02130f9
6 changed files with 23 additions and 19 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
Documentation/devicetree/bindings/net/can/rcar_canfd.txt
View File

@ -5,7 +5,9 @@ Required properties:
- compatible: Must contain one or more of the following:
- "renesas,rcar-gen3-canfd" for R-Car Gen3 compatible controller.
- "renesas,r8a7795-canfd" for R8A7795 (R-Car H3) compatible controller.
- "renesas,r8a7796-canfd" for R8A7796 (R-Car M3) compatible controller.
- "renesas,r8a7796-canfd" for R8A7796 (R-Car M3-W) compatible controller.
- "renesas,r8a77970-canfd" for R8A77970 (R-Car V3M) compatible controller.
- "renesas,r8a77980-canfd" for R8A77980 (R-Car V3H) compatible controller.
When compatible with the generic version, nodes must list the
SoC-specific version corresponding to the platform first, followed by the

4
arch/arm/boot/dts/imx35.dtsi
View File

@ -303,7 +303,7 @@ wdog: wdog@53fdc000 {
};
can1: can@53fe4000 {
compatible = "fsl,imx35-flexcan";
compatible = "fsl,imx35-flexcan", "fsl,imx25-flexcan";
reg = <0x53fe4000 0x1000>;
clocks = <&clks 33>, <&clks 33>;
clock-names = "ipg", "per";
@ -312,7 +312,7 @@ can1: can@53fe4000 {
};
can2: can@53fe8000 {
compatible = "fsl,imx35-flexcan";
compatible = "fsl,imx35-flexcan", "fsl,imx25-flexcan";
reg = <0x53fe8000 0x1000>;
clocks = <&clks 34>, <&clks 34>;
clock-names = "ipg", "per";

4
arch/arm/boot/dts/imx53.dtsi
View File

@ -551,7 +551,7 @@ uart2: serial@53fc0000 {
};
can1: can@53fc8000 {
compatible = "fsl,imx53-flexcan";
compatible = "fsl,imx53-flexcan", "fsl,imx25-flexcan";
reg = <0x53fc8000 0x4000>;
interrupts = <82>;
clocks = <&clks IMX5_CLK_CAN1_IPG_GATE>,
@ -561,7 +561,7 @@ can1: can@53fc8000 {
};
can2: can@53fcc000 {
compatible = "fsl,imx53-flexcan";
compatible = "fsl,imx53-flexcan", "fsl,imx25-flexcan";
reg = <0x53fcc000 0x4000>;
interrupts = <83>;
clocks = <&clks IMX5_CLK_CAN2_IPG_GATE>,

2
drivers/net/can/dev.c
View File

@ -605,7 +605,7 @@ void can_bus_off(struct net_device *dev)
{
struct can_priv *priv = netdev_priv(dev);
netdev_dbg(dev, "bus-off\n");
netdev_info(dev, "bus-off\n");
netif_carrier_off(dev);

26
drivers/net/can/flexcan.c
View File

@ -200,6 +200,7 @@
#define FLEXCAN_QUIRK_DISABLE_MECR BIT(4) /* Disable Memory error detection */
#define FLEXCAN_QUIRK_USE_OFF_TIMESTAMP BIT(5) /* Use timestamp based offloading */
#define FLEXCAN_QUIRK_BROKEN_PERR_STATE BIT(6) /* No interrupt for error passive */
#define FLEXCAN_QUIRK_DEFAULT_BIG_ENDIAN BIT(7) /* default to BE register access */
/* Structure of the message buffer */
struct flexcan_mb {
@ -287,6 +288,12 @@ struct flexcan_priv {
};
static const struct flexcan_devtype_data fsl_p1010_devtype_data = {
.quirks = FLEXCAN_QUIRK_BROKEN_WERR_STATE |
FLEXCAN_QUIRK_BROKEN_PERR_STATE |
FLEXCAN_QUIRK_DEFAULT_BIG_ENDIAN,
};
static const struct flexcan_devtype_data fsl_imx25_devtype_data = {
.quirks = FLEXCAN_QUIRK_BROKEN_WERR_STATE |
FLEXCAN_QUIRK_BROKEN_PERR_STATE,
};
@ -1251,9 +1258,9 @@ static void unregister_flexcandev(struct net_device *dev)
static const struct of_device_id flexcan_of_match[] = {
{ .compatible = "fsl,imx6q-flexcan", .data = &fsl_imx6q_devtype_data, },
{ .compatible = "fsl,imx28-flexcan", .data = &fsl_imx28_devtype_data, },
{ .compatible = "fsl,imx53-flexcan", .data = &fsl_p1010_devtype_data, },
{ .compatible = "fsl,imx35-flexcan", .data = &fsl_p1010_devtype_data, },
{ .compatible = "fsl,imx25-flexcan", .data = &fsl_p1010_devtype_data, },
{ .compatible = "fsl,imx53-flexcan", .data = &fsl_imx25_devtype_data, },
{ .compatible = "fsl,imx35-flexcan", .data = &fsl_imx25_devtype_data, },
{ .compatible = "fsl,imx25-flexcan", .data = &fsl_imx25_devtype_data, },
{ .compatible = "fsl,p1010-flexcan", .data = &fsl_p1010_devtype_data, },
{ .compatible = "fsl,vf610-flexcan", .data = &fsl_vf610_devtype_data, },
{ .compatible = "fsl,ls1021ar2-flexcan", .data = &fsl_ls1021a_r2_devtype_data, },
@ -1337,18 +1344,13 @@ static int flexcan_probe(struct platform_device *pdev)
priv = netdev_priv(dev);
if (of_property_read_bool(pdev->dev.of_node, "big-endian")) {
if (of_property_read_bool(pdev->dev.of_node, "big-endian") ||
devtype_data->quirks & FLEXCAN_QUIRK_DEFAULT_BIG_ENDIAN) {
priv->read = flexcan_read_be;
priv->write = flexcan_write_be;
} else {
if (of_device_is_compatible(pdev->dev.of_node,
"fsl,p1010-flexcan")) {
priv->read = flexcan_read_be;
priv->write = flexcan_write_be;
} else {
priv->read = flexcan_read_le;
priv->write = flexcan_write_le;
}
priv->read = flexcan_read_le;
priv->write = flexcan_write_le;
}
priv->can.clock.freq = clock_freq;

2
drivers/net/can/usb/kvaser_usb.c
View File

@ -1179,7 +1179,7 @@ static void kvaser_usb_rx_can_msg(const struct kvaser_usb *dev,
skb = alloc_can_skb(priv->netdev, &cf);
if (!skb) {
stats->tx_dropped++;
stats->rx_dropped++;
return;
}