diff options
| author | Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> | 2014-08-01 01:25:53 +0400 |
|---|---|---|
| committer | Marc Kleine-Budde <mkl@pengutronix.de> | 2014-08-18 01:03:42 +0200 |
| commit | a268de6c68e4933234e9ac62f2ab7ff8264ce0b4 (patch) | |
| tree | 81f48df9c5d8ad0d7f5179460e74fbf53d66867a | |
| parent | 632e25ca722e5361a1b40d89e77808f8f1c6799f (diff) | |
can: rcar_can: add device tree support
Add support of the device tree probing for the Renesas R-Car CAN controllers.
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
| -rw-r--r-- | drivers/net/can/rcar_can.c | 28 |
1 files changed, 22 insertions, 6 deletions
diff --git a/drivers/net/can/rcar_can.c b/drivers/net/can/rcar_can.c index c02fcf369afd..1abe133d1594 100644 --- a/drivers/net/can/rcar_can.c +++ b/drivers/net/can/rcar_can.c @@ -20,6 +20,7 @@ #include <linux/can/dev.h> #include <linux/clk.h> #include <linux/can/platform/rcar_can.h> +#include <linux/of.h> #define RCAR_CAN_DRV_NAME "rcar_can" @@ -738,16 +739,21 @@ static int rcar_can_probe(struct platform_device *pdev) struct net_device *ndev; struct resource *mem; void __iomem *addr; - u32 clock_select; + u32 clock_select = CLKR_CLKP1; int err = -ENODEV; int irq; - pdata = dev_get_platdata(&pdev->dev); - if (!pdata) { - dev_err(&pdev->dev, "No platform data provided!\n"); - goto fail; + if (pdev->dev.of_node) { + of_property_read_u32(pdev->dev.of_node, + "renesas,can-clock-select", &clock_select); + } else { + pdata = dev_get_platdata(&pdev->dev); + if (!pdata) { + dev_err(&pdev->dev, "No platform data provided!\n"); + goto fail; + } + clock_select = pdata->clock_select; } - clock_select = pdata->clock_select; irq = platform_get_irq(pdev, 0); if (!irq) { @@ -888,10 +894,20 @@ static int __maybe_unused rcar_can_resume(struct device *dev) static SIMPLE_DEV_PM_OPS(rcar_can_pm_ops, rcar_can_suspend, rcar_can_resume); +static const struct of_device_id rcar_can_of_table[] __maybe_unused = { + { .compatible = "renesas,can-r8a7778" }, + { .compatible = "renesas,can-r8a7779" }, + { .compatible = "renesas,can-r8a7790" }, + { .compatible = "renesas,can-r8a7791" }, + { } +}; +MODULE_DEVICE_TABLE(of, rcar_can_of_table); + static struct platform_driver rcar_can_driver = { .driver = { .name = RCAR_CAN_DRV_NAME, .owner = THIS_MODULE, + .of_match_table = of_match_ptr(rcar_can_of_table), .pm = &rcar_can_pm_ops, }, .probe = rcar_can_probe, |