diff options
| author | Tomasz Figa <t.figa@samsung.com> | 2013-06-25 15:38:23 (GMT) |
|---|---|---|
| committer | Felipe Balbi <balbi@ti.com> | 2013-07-29 10:56:49 (GMT) |
| commit | c50f056c360673ef196b49bfa161d841f0fbe92e (patch) | |
| tree | 9d1f89634838ea37fa1e1e44fb90b094d0dbab8c | |
| parent | 22a5aa170c5231e64e1598a55dee92ea9a26183e (diff) | |
| download | linux-c50f056c360673ef196b49bfa161d841f0fbe92e.tar.xz | |
usb: gadget: s3c-hsotg: Allow driver instantiation using device tree
This patch adds OF match table to the driver to allow instantiating it
using device tree.
Signed-off-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
| -rw-r--r-- | Documentation/devicetree/bindings/usb/samsung-hsotg.txt | 40 | ||||
| -rw-r--r-- | drivers/usb/gadget/s3c-hsotg.c | 10 |
2 files changed, 50 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/usb/samsung-hsotg.txt b/Documentation/devicetree/bindings/usb/samsung-hsotg.txt new file mode 100644 index 0000000..b83d428 --- /dev/null +++ b/Documentation/devicetree/bindings/usb/samsung-hsotg.txt @@ -0,0 +1,40 @@ +Samsung High Speed USB OTG controller +----------------------------- + +The Samsung HSOTG IP can be found on Samsung SoCs, from S3C6400 onwards. +It gives functionality of OTG-compliant USB 2.0 host and device with +support for USB 2.0 high-speed (480Mbps) and full-speed (12 Mbps) +operation. + +Currently only device mode is supported. + +Binding details +----- + +Required properties: +- compatible: "samsung,s3c6400-hsotg" should be used for all currently + supported SoC, +- interrupt-parent: phandle for the interrupt controller to which the + interrupt signal of the HSOTG block is routed, +- interrupts: specifier of interrupt signal of interrupt controller, + according to bindings of interrupt controller, +- clocks: contains an array of clock specifiers: + - first entry: OTG clock +- clock-names: contains array of clock names: + - first entry: must be "otg" +- vusb_d-supply: phandle to voltage regulator of digital section, +- vusb_a-supply: phandle to voltage regulator of analog section. + +Example +----- + + hsotg@12480000 { + compatible = "samsung,s3c6400-hsotg"; + reg = <0x12480000 0x20000>; + interrupts = <0 71 0>; + clocks = <&clock 305>; + clock-names = "otg"; + vusb_d-supply = <&vusb_reg>; + vusb_a-supply = <&vusbdac_reg>; + }; + diff --git a/drivers/usb/gadget/s3c-hsotg.c b/drivers/usb/gadget/s3c-hsotg.c index af22f24..616ed51 100644 --- a/drivers/usb/gadget/s3c-hsotg.c +++ b/drivers/usb/gadget/s3c-hsotg.c @@ -29,6 +29,7 @@ #include <linux/slab.h> #include <linux/clk.h> #include <linux/regulator/consumer.h> +#include <linux/of_platform.h> #include <linux/usb/ch9.h> #include <linux/usb/gadget.h> @@ -3648,10 +3649,19 @@ static int s3c_hsotg_remove(struct platform_device *pdev) #define s3c_hsotg_resume NULL #endif +#ifdef CONFIG_OF +static const struct of_device_id s3c_hsotg_of_ids[] = { + { .compatible = "samsung,s3c6400-hsotg", }, + { /* sentinel */ } +}; +MODULE_DEVICE_TABLE(of, s3c_hsotg_of_ids); +#endif + static struct platform_driver s3c_hsotg_driver = { .driver = { .name = "s3c-hsotg", .owner = THIS_MODULE, + .of_match_table = of_match_ptr(s3c_hsotg_of_ids), }, .probe = s3c_hsotg_probe, .remove = s3c_hsotg_remove, |