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x86: Update x86-pinctrl driver device-tree-bindings doc

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This updates the device-tree-bindings doc for x86-pinctrl driver:

 - clarify "gpio-offset" is required only when "mode-gpio" is set
 - correct property name "pull-strength"
 - use tab instead of space at several places

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Stefan Roese <sr@denx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Bin Meng 2016-06-08 05:07:36 -07:00
parent f7a01e4848
commit 2600ba6de0
1 changed files with 8 additions and 8 deletions
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16
doc/device-tree-bindings/gpio/intel,x86-pinctrl.txt
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@ -9,7 +9,7 @@ The PINCTRL master node requires the following properties:
Pin nodes must be children of the pinctrl master node and can
contain the following properties:
- pad-offset - (required) offset in the IOBASE for the pin to configure
- gpio-offset - (required) 2 cells
- gpio-offset - (required only when 'mode-gpio' is set) 2 cells
- offset in the GPIOBASE for the pin to configure
- the bit shift in this register (4 = bit 4)
- mode-gpio - (optional) standalone property to force the pin into GPIO mode
@ -18,16 +18,16 @@ contain the following properties:
in case of 'mode-gpio' property set:
- output-value - (optional) this set the default output value of the GPIO
- direction - (optional) this set the direction of the gpio
- pull-str - (optional) this set the pull strength of the pin
- pull-strength - (optional) this set the pull strength of the pin
- pull-assign - (optional) this set the pull assignement (up/down) of the pin
- invert - (optional) this input pin is inverted
- invert - (optional) this input pin is inverted
Example:
pin_usb_host_en0@0 {
gpio-offset = <0x80 8>;
pad-offset = <0x260>;
mode-gpio;
output-value = <1>;
direction = <PIN_OUTPUT>;
gpio-offset = <0x80 8>;
pad-offset = <0x260>;
mode-gpio;
output-value = <1>;
direction = <PIN_OUTPUT>;
};