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Commit a268de6c authored by Sergei Shtylyov's avatar Sergei Shtylyov Committed by Marc Kleine-Budde
Browse files

can: rcar_can: add device tree support 



Add support of the device tree probing for the Renesas R-Car CAN controllers.

Signed-off-by: default avatarSergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: default avatarMarc Kleine-Budde <mkl@pengutronix.de>
parent 632e25ca

drivers/net/can/rcar_can.c

+22 −6
Original line number Diff line number Diff line
@@ -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;



	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;

	}



	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,