2016-12-09 9:53 GMT+01:00 Lee Jones <lee.jones@xxxxxxxxxx>:
> Sorry to do this Ben. Not much to do now though!
>
>> Add bindings information for STM32 General Purpose Timer
>>
>> version 2:
>> - rename stm32-mfd-timer to stm32-gptimer
>> - only keep one compatible string
>>
>> Signed-off-by: Benjamin Gaignard <benjamin.gaignard@xxxxxx>
>> ---
>> .../bindings/mfd/stm32-general-purpose-timer.txt | 39 ++++++++++++++++++++++
>> 1 file changed, 39 insertions(+)
>> create mode 100644 Documentation/devicetree/bindings/mfd/stm32-general-purpose-timer.txt
>>
>> diff --git a/Documentation/devicetree/bindings/mfd/stm32-general-purpose-timer.txt b/Documentation/devicetree/bindings/mfd/stm32-general-purpose-timer.txt
>> new file mode 100644
>> index 0000000..ce67755
>> --- /dev/null
>> +++ b/Documentation/devicetree/bindings/mfd/stm32-general-purpose-timer.txt
>> @@ -0,0 +1,39 @@
>> +STM32 General Purpose Timer driver bindings
>
> This is a great place to describe what we're *actually* trying to
> achieve with this driver, and the worst place to use the term "general
> purpose", since this IP is so much more than that.
>
>
> "STM32 Timers
>
> This IP provides 3 types of timer along with PWM functionality.
>
> [...]"
>
> ... then go on to explain what the 3 types are and how they can be
> used.
>
>> +Required parameters:
>> +- compatible: must be "st,stm32-gptimer"
>
> I vehemently disagree that this entire IP is a GP Timer. It contains
> GP timers, sure, but it also contains Advanced and Basic timers.
>
> IMHO this compatible should be "st,stm32-timers".
>
> And the file name of both this and the *.c file should reflect that
> too.
I will do those name changes in v6.
>
> Remainder looks nice.
>
>> +- reg: Physical base address and length of the controller's
>> + registers.
>> +- clock-names: Set to "clk_int".
>> +- clocks: Phandle to the clock used by the timer module.
>> + For Clk properties, please refer to ../clock/clock-bindings.txt
>> +
>> +Optional parameters:
>> +- resets: Phandle to the parent reset controller.
>> + See ../reset/st,stm32-rcc.txt
>> +
>> +Optional subnodes:
>> +- pwm: See ../pwm/pwm-stm32.txt
>> +- timer: See ../iio/timer/stm32-timer-trigger.txt
>> +
>> +Example:
>> + timers@40010000 {
>> + #address-cells = <1>;
>> + #size-cells = <0>;
>> + compatible = "st,stm32-gptimer";
>> + reg = <0x40010000 0x400>;
>> + clocks = <&rcc 0 160>;
>> + clock-names = "clk_int";
>> +
>> + pwm@0 {
>
> Out of interest, do you use the "@0", "@1" for anything now?
No I don't use them so I will remove them in v6
>
>> + compatible = "st,stm32-pwm";
>> + pinctrl-0 = <&pwm1_pins>;
>> + pinctrl-names = "default";
>> + };
>> +
>> + timer@0 {
>> + compatible = "st,stm32-timer-trigger";
>> + reg = <0>;
>> + };
>> + };
>
> --
> Lee Jones
> Linaro STMicroelectronics Landing Team Lead
> Linaro.org │ Open source software for ARM SoCs
> Follow Linaro: Facebook | Twitter | Blog
--
Benjamin Gaignard
Graphic Study Group
Linaro.org │ Open source software for ARM SoCs
Follow Linaro: Facebook | Twitter | Blog
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