diff options
Diffstat (limited to 'meta-rcar-gen2/recipes-kernel/linux/linux-renesas/0017-can-rcar_can-add-device-tree-support.patch')
| -rw-r--r-- | meta-rcar-gen2/recipes-kernel/linux/linux-renesas/0017-can-rcar_can-add-device-tree-support.patch | 77 |
1 files changed, 77 insertions, 0 deletions
diff --git a/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/0017-can-rcar_can-add-device-tree-support.patch b/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/0017-can-rcar_can-add-device-tree-support.patch new file mode 100644 index 0000000..716bdbc --- /dev/null +++ b/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/0017-can-rcar_can-add-device-tree-support.patch @@ -0,0 +1,77 @@ +From a268de6c68e4933234e9ac62f2ab7ff8264ce0b4 Mon Sep 17 00:00:00 2001 +From: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> +Date: Fri, 1 Aug 2014 01:25:53 +0400 +Subject: [PATCH] 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> +--- + drivers/net/can/rcar_can.c | 28 ++++++++++++++++++++++------ + 1 file changed, 22 insertions(+), 6 deletions(-) + +diff --git a/drivers/net/can/rcar_can.c b/drivers/net/can/rcar_can.c +index c02fcf3..1abe133 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, +-- +1.9.1 + |