diff options
| -rw-r--r-- | Documentation/devicetree/bindings/i2c/i2c-st-ddci2c.txt | 15 | ||||
| -rw-r--r-- | drivers/i2c/busses/i2c-stu300.c | 12 |
2 files changed, 27 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/i2c/i2c-st-ddci2c.txt b/Documentation/devicetree/bindings/i2c/i2c-st-ddci2c.txt new file mode 100644 index 0000000..bd81a48 --- /dev/null +++ b/Documentation/devicetree/bindings/i2c/i2c-st-ddci2c.txt @@ -0,0 +1,15 @@ +ST Microelectronics DDC I2C + +Required properties : +- compatible : Must be "st,ddci2c" +- reg: physical base address of the controller and length of memory mapped + region. +- interrupts: interrupt number to the cpu. +- #address-cells = <1>; +- #size-cells = <0>; + +Optional properties: +- Child nodes conforming to i2c bus binding + +Examples : + diff --git a/drivers/i2c/busses/i2c-stu300.c b/drivers/i2c/busses/i2c-stu300.c index 0a6f941..1beaa05a 100644 --- a/drivers/i2c/busses/i2c-stu300.c +++ b/drivers/i2c/busses/i2c-stu300.c @@ -17,6 +17,7 @@ #include <linux/clk.h> #include <linux/io.h> #include <linux/slab.h> +#include <linux/of_i2c.h> /* the name of this kernel module */ #define NAME "stu300" @@ -923,6 +924,7 @@ stu300_probe(struct platform_device *pdev) adap->nr = bus_nr; adap->algo = &stu300_algo; adap->dev.parent = &pdev->dev; + adap->dev.of_node = pdev->dev.of_node; i2c_set_adapdata(adap, dev); /* i2c device drivers may be active on return from add_adapter() */ @@ -934,6 +936,10 @@ stu300_probe(struct platform_device *pdev) } platform_set_drvdata(pdev, dev); + dev_info(&pdev->dev, "ST DDC I2C @ %p, irq %d\n", + dev->virtbase, dev->irq); + of_i2c_register_devices(adap); + return 0; } @@ -978,11 +984,17 @@ stu300_remove(struct platform_device *pdev) return 0; } +static const struct of_device_id stu300_dt_match[] = { + { .compatible = "st,ddci2c" }, + {}, +}; + static struct platform_driver stu300_i2c_driver = { .driver = { .name = NAME, .owner = THIS_MODULE, .pm = STU300_I2C_PM, + .of_match_table = stu300_dt_match, }, .remove = __exit_p(stu300_remove), |
