On 08/19/2013 04:53 PM, Tomasz Figa wrote: > On Monday 19 of August 2013 16:30:45 Stephen Warren wrote: >> On 08/19/2013 11:25 AM, Sylwester Nawrocki wrote: >>> On 08/19/2013 03:25 PM, Pawel Moll wrote: >>>> On Mon, 2013-08-19 at 14:18 +0100, Andrzej Hajda wrote: >>>>> +++ b/Documentation/devicetree/bindings/media/samsung-s5k5baf.txt >>>>> @@ -0,0 +1,51 @@ >>>>> +Samsung S5K5BAF UXGA 1/5" 2M CMOS Image Sensor with embedded SoC >>>>> ISP >>>>> +------------------------------------------------------------- >>>>> + >>>>> +Required properties: >>>>> + >>>>> +- compatible : "samsung,s5k5baf"; >>>>> +- reg : I2C slave address of the sensor; >>>>> +- vdda-supply : analog power supply 2.8V (2.6V to 3.0V); >>>>> +- vddreg-supply : regulator input power supply 1.8V (1.7V >>>>> to 1.9V) + or 2.8V (2.6V to 3.0); >>>>> +- vddio-supply : I/O power supply 1.8V (1.65V to 1.95V) >>>>> + or 2.8V (2.5V to 3.1V); >>>>> +- gpios : GPIOs connected to STDBYN and RSTN pins, >>>>> + in order: STBYN, RSTN; >>>> >>>> You probably want to use the "[<name>-]gpios" convention here (see >>>> Documentation/devicetree/bindings/gpio/gpio.txt), so something like >>>> stbyn-gpios and rstn-gpios. >>> >>> Unless using multiple named properties is really preferred over a >>> single "gpios" property I would like to keep the single property >>> containing a list of GPIOs. ... >> >> Yes, a separate property for each type of GPIO is typical. Multiple >> entries in the same property are allowed if they're used for the same >> purpose/type, whereas here they're clearly different things. >> Inconsistent with (some) other properties, admittedly... > > I'm not really convinced about the superiority of named gpio properties > over a single gpios property with multiple entries in this case. I'd say > it's more just a matter of preference. > > See the clock or interrupt bindings. They all specify all the clocks and > interrupts in single property, without any differentiation based on their > purposes. Also keep in mind that original GPIO bindings used only a single > "gpios" property and was only extended to allow named ones. Well, it's not so much about what's best, but just being consistent with what's already there. -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
