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| author | Richard Zhao <richard.zhao@freescale.com> | 2012-09-12 14:58:05 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-09-12 11:20:38 -0700 |
| commit | d142d6be231713330f9c0d7ee52f23e1b3f19ee4 (patch) | |
| tree | 22c13437373301d2ff9c2b311c42eaab2d079a1e /Documentation | |
| parent | 08d9c74d45ceb581c11d2ab265c32236b0321a56 (diff) | |
| download | linux-d142d6be231713330f9c0d7ee52f23e1b3f19ee4.tar.gz linux-d142d6be231713330f9c0d7ee52f23e1b3f19ee4.tar.bz2 linux-d142d6be231713330f9c0d7ee52f23e1b3f19ee4.zip | |
USB: chipidea: add imx usbmisc support
i.MX usb controllers share non-core registers, which may include
SoC specific controls. We turn it into a usbmisc device and usbmisc
driver set operations needed by ci13xxx_imx driver.
For example, Sabrelite board has bad over-current design, we can
usbmisc to disable over-current detection.
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Richard Zhao <richard.zhao@freescale.com>
Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/devicetree/bindings/usb/ci13xxx-imx.txt | 5 | ||||
| -rw-r--r-- | Documentation/devicetree/bindings/usb/usbmisc-imx.txt | 14 |
2 files changed, 19 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/usb/ci13xxx-imx.txt b/Documentation/devicetree/bindings/usb/ci13xxx-imx.txt index 2c290418bb2d..5778b9c83bd8 100644 --- a/Documentation/devicetree/bindings/usb/ci13xxx-imx.txt +++ b/Documentation/devicetree/bindings/usb/ci13xxx-imx.txt @@ -7,7 +7,10 @@ Required properties: Optional properties: - fsl,usbphy: phandler of usb phy that connects to the only one port +- fsl,usbmisc: phandler of non-core register device, with one argument + that indicate usb controller index - vbus-supply: regulator for vbus +- disable-over-current: disable over current detect Examples: usb@02184000 { /* USB OTG */ @@ -15,4 +18,6 @@ usb@02184000 { /* USB OTG */ reg = <0x02184000 0x200>; interrupts = <0 43 0x04>; fsl,usbphy = <&usbphy1>; + fsl,usbmisc = <&usbmisc 0>; + disable-over-current; }; diff --git a/Documentation/devicetree/bindings/usb/usbmisc-imx.txt b/Documentation/devicetree/bindings/usb/usbmisc-imx.txt new file mode 100644 index 000000000000..97ce94e1a6cc --- /dev/null +++ b/Documentation/devicetree/bindings/usb/usbmisc-imx.txt @@ -0,0 +1,14 @@ +* Freescale i.MX non-core registers + +Required properties: +- #index-cells: Cells used to descibe usb controller index. Should be <1> +- compatible: Should be one of below: + "fsl,imx6q-usbmisc" for imx6q +- reg: Should contain registers location and length + +Examples: +usbmisc@02184800 { + #index-cells = <1>; + compatible = "fsl,imx6q-usbmisc"; + reg = <0x02184800 0x200>; +}; |