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From: Benjamin Gaignard <benjamin.gaignard@linaro.org>
To: Rob Herring <robh@kernel.org>
Cc: Lee Jones <lee.jones@linaro.org>,
	Mark Rutland <mark.rutland@arm.com>,
	alexandre.torgue@st.com, devicetree@vger.kernel.org,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
	Thierry Reding <thierry.reding@gmail.com>,
	linux-pwm@vger.kernel.org, Jonathan Cameron <jic23@kernel.org>,
	knaack.h@gmx.de, Lars-Peter Clausen <lars@metafoo.de>,
	Peter Meerwald-Stadler <pmeerw@pmeerw.net>,
	linux-iio@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
	Fabrice Gasnier <fabrice.gasnier@st.com>,
	Gerald Baeza <gerald.baeza@st.com>,
	Arnaud Pouliquen <arnaud.pouliquen@st.com>,
	Linus Walleij <linus.walleij@linaro.org>,
	Linaro Kernel Mailman List <linaro-kernel@lists.linaro.org>,
	Benjamin Gaignard <benjamin.gaignard@st.com>
Subject: Re: [PATCH v6 7/8] ARM: dts: stm32: add Timers driver for stm32f429 MCU
Date: Tue, 13 Dec 2016 10:15:21 +0100	[thread overview]
Message-ID: <CA+M3ks6hMDVqDkjn_vcu-d2YkJkiAmCS44Nc7rtfgAkD09LNFA@mail.gmail.com> (raw)
In-Reply-To: <20161212185943.ph7njaqb2lxtgdn4@rob-hp-laptop>

2016-12-12 19:59 GMT+01:00 Rob Herring <robh@kernel.org>:
> On Fri, Dec 09, 2016 at 03:15:18PM +0100, Benjamin Gaignard wrote:
>> Add Timers and it sub-nodes into DT for stm32f429 family.
>>
>> version 6:
>> - split patch in two: one for SoC family and one for stm32f469
>>   discovery board.
>>
>> version 5:
>> - rename gptimer node to timers
>> - re-order timers node par addresses
>>
>> version 4:
>> - remove unwanted indexing in pwm@ and timer@ node name
>> - use "reg" instead of additional parameters to set timer
>>   configuration
>>
>> version 3:
>> - use "st,stm32-timer-trigger" in DT
>>
>> version 2:
>> - use parameters to describe hardware capabilities
>> - do not use references for pwm and iio timer subnodes
>>
>> Signed-off-by: Benjamin Gaignard <benjamin.gaignard@st.com>
>> ---
>>  arch/arm/boot/dts/stm32f429.dtsi | 275 +++++++++++++++++++++++++++++++++++++++
>>  1 file changed, 275 insertions(+)
>>
>> diff --git a/arch/arm/boot/dts/stm32f429.dtsi b/arch/arm/boot/dts/stm32f429.dtsi
>> index bca491d..d0fb9cc 100644
>> --- a/arch/arm/boot/dts/stm32f429.dtsi
>> +++ b/arch/arm/boot/dts/stm32f429.dtsi
>> @@ -355,6 +355,21 @@
>>                                       slew-rate = <2>;
>>                               };
>>                       };
>> +
>> +                     pwm1_pins: pwm@1 {
>
> No reg prop, so should not have a unit-address. Given the names in the
> define below, seems like "timer1" would be appropriate.
>
>> +                             pins {
>> +                                     pinmux = <STM32F429_PA8_FUNC_TIM1_CH1>,
>> +                                              <STM32F429_PB13_FUNC_TIM1_CH1N>,
>> +                                              <STM32F429_PB12_FUNC_TIM1_BKIN>;
>> +                             };
>> +                     };
>> +
>> +                     pwm3_pins: pwm@3 {
>> +                             pins {
>> +                                     pinmux = <STM32F429_PB4_FUNC_TIM3_CH1>,
>> +                                              <STM32F429_PB5_FUNC_TIM3_CH2>;
>> +                             };
>> +                     };
>>               };
>>
>>               rcc: rcc@40023810 {
>> @@ -426,6 +441,266 @@
>>                       interrupts = <80>;
>>                       clocks = <&rcc 0 38>;
>>               };
>> +
>> +             timers2: timers@40000000 {
>
> timer@...
>
> It may be more than just a timer, there's not a better generic name.
>
>> +                     #address-cells = <1>;
>> +                     #size-cells = <0>;
>> +                     compatible = "st,stm32-timers";
>> +                     reg = <0x40000000 0x400>;
>> +                     clocks = <&rcc 0 128>;
>> +                     clock-names = "clk_int";
>> +                     status = "disabled";
>> +
>> +                     pwm {
>> +                             compatible = "st,stm32-pwm";
>> +                             status = "disabled";
>> +                     };
>> +
>> +                     timer {
>> +                             compatible = "st,stm32-timer-trigger";
>> +                             reg = <1>;
>> +                             status = "disabled";
>> +                     };
>> +             };
>> +
>> +             timers3: timers@40000400 {
>
> ditto
>
>> +                     #address-cells = <1>;
>> +                     #size-cells = <0>;
>> +                     compatible = "st,stm32-timers";
>> +                     reg = <0x40000400 0x400>;
>> +                     clocks = <&rcc 0 129>;
>> +                     clock-names = "clk_int";
>> +                     status = "disabled";
>> +
>> +                     pwm {
>> +                             compatible = "st,stm32-pwm";
>> +                             status = "disabled";
>> +                     };
>> +
>> +                     timer {
>> +                             compatible = "st,stm32-timer-trigger";
>> +                             reg = <2>;
>> +                             status = "disabled";
>> +                     };
>> +             };
>> +
>> +             timers4: timers@40000800 {
>> +                     #address-cells = <1>;
>> +                     #size-cells = <0>;
>> +                     compatible = "st,stm32-timers";
>> +                     reg = <0x40000800 0x400>;
>> +                     clocks = <&rcc 0 130>;
>> +                     clock-names = "clk_int";
>> +                     status = "disabled";
>> +
>> +                     pwm {
>> +                             compatible = "st,stm32-pwm";
>> +                             status = "disabled";
>> +                     };
>> +
>> +                     timer {
>> +                             compatible = "st,stm32-timer-trigger";
>> +                             reg = <3>;
>> +                             status = "disabled";
>> +                     };
>> +             };
>> +
>> +             timers5: timers@40000C00 {
>
> timer@...
>
> And use lowercase hex.
>
>> +                     #address-cells = <1>;
>> +                     #size-cells = <0>;
>> +                     compatible = "st,stm32-timers";
>> +                     reg = <0x40000C00 0x400>;
>
> ditto
>
>> +                     clocks = <&rcc 0 131>;
>> +                     clock-names = "clk_int";
>> +                     status = "disabled";
>> +
>> +                     pwm {
>> +                             compatible = "st,stm32-pwm";
>> +                             status = "disabled";
>> +                     };
>> +
>> +                     timer {
>> +                             compatible = "st,stm32-timer-trigger";
>> +                             reg = <4>;
>> +                             status = "disabled";
>> +                     };
>> +             };
>> +
>> +             timers6: timers@40001000 {
>> +                     #address-cells = <1>;
>> +                     #size-cells = <0>;
>> +                     compatible = "st,stm32-timers";
>> +                     reg = <0x40001000 0x400>;
>> +                     clocks = <&rcc 0 132>;
>> +                     clock-names = "clk_int";
>> +                     status = "disabled";
>> +
>> +                     timer {
>> +                             compatible = "st,stm32-timer-trigger";
>> +                             reg = <5>;
>> +                             status = "disabled";
>> +                     };
>> +             };
>> +
>> +             timers7: timers@40001400 {
>> +                     #address-cells = <1>;
>> +                     #size-cells = <0>;
>> +                     compatible = "st,stm32-timers";
>> +                     reg = <0x40001400 0x400>;
>> +                     clocks = <&rcc 0 133>;
>> +                     clock-names = "clk_int";
>> +                     status = "disabled";
>> +
>> +                     timer {
>> +                             compatible = "st,stm32-timer-trigger";
>> +                             reg = <6>;
>> +                             status = "disabled";
>> +                     };
>> +             };
>> +
>> +             timers12: timers@40001800 {
>> +                     #address-cells = <1>;
>> +                     #size-cells = <0>;
>> +                     compatible = "st,stm32-timers";
>> +                     reg = <0x40001800 0x400>;
>> +                     clocks = <&rcc 0 134>;
>> +                     clock-names = "clk_int";
>> +                     status = "disabled";
>> +
>> +                     pwm {
>> +                             compatible = "st,stm32-pwm";
>> +                             status = "disabled";
>> +                     };
>> +
>> +                     timer {
>> +                             compatible = "st,stm32-timer-trigger";
>> +                             reg = <9>;
>> +                             status = "disabled";
>> +                     };
>> +             };
>> +
>> +             timers13: timers@40001C00 {
>> +                     #address-cells = <1>;
>> +                     #size-cells = <0>;
>> +                     compatible = "st,stm32-timers";
>> +                     reg = <0x40001C00 0x400>;
>> +                     clocks = <&rcc 0 135>;
>> +                     clock-names = "clk_int";
>> +                     status = "disabled";
>> +
>> +                     pwm {
>> +                             compatible = "st,stm32-pwm";
>> +                             status = "disabled";
>> +                     };
>> +             };
>> +
>> +             timers14: timers@40002000 {
>> +                     #address-cells = <1>;
>> +                     #size-cells = <0>;
>> +                     compatible = "st,stm32-timers";
>> +                     reg = <0x40002000 0x400>;
>> +                     clocks = <&rcc 0 136>;
>> +                     clock-names = "clk_int";
>> +                     status = "disabled";
>> +
>> +                     pwm {
>> +                             compatible = "st,stm32-pwm";
>> +                             status = "disabled";
>> +                     };
>> +             };
>> +
>> +             timers1: timers@40010000 {
>> +                     #address-cells = <1>;
>> +                     #size-cells = <0>;
>> +                     compatible = "st,stm32-timers";
>> +                     reg = <0x40010000 0x400>;
>> +                     clocks = <&rcc 0 160>;
>> +                     clock-names = "clk_int";
>> +                     status = "disabled";
>> +
>> +                     pwm {
>> +                             compatible = "st,stm32-pwm";
>> +                             status = "disabled";
>> +                     };
>> +
>> +                     timer {
>> +                             compatible = "st,stm32-timer-trigger";
>> +                             reg = <0>;
>> +                             status = "disabled";
>> +                     };
>> +             };
>> +
>> +             timers8: timers@40010400 {
>> +                     #address-cells = <1>;
>> +                     #size-cells = <0>;
>> +                     compatible = "st,stm32-timers";
>> +                     reg = <0x40010400 0x400>;
>> +                     clocks = <&rcc 0 161>;
>> +                     clock-names = "clk_int";
>> +                     status = "disabled";
>> +
>> +                     pwm {
>> +                             compatible = "st,stm32-pwm";
>> +                             status = "disabled";
>> +                     };
>> +
>> +                     timer {
>> +                             compatible = "st,stm32-timer-trigger";
>> +                             reg = <7>;
>> +                             status = "disabled";
>> +                     };
>> +             };
>> +
>> +             timers9: timers@40014000 {
>> +                     #address-cells = <1>;
>> +                     #size-cells = <0>;
>> +                     compatible = "st,stm32-timers";
>> +                     reg = <0x40014000 0x400>;
>> +                     clocks = <&rcc 0 176>;
>> +                     clock-names = "clk_int";
>> +                     status = "disabled";
>> +
>> +                     pwm {
>> +                             compatible = "st,stm32-pwm";
>> +                             status = "disabled";
>> +                     };
>> +
>> +                     timer {
>> +                             compatible = "st,stm32-timer-trigger";
>> +                             reg = <8>;
>> +                             status = "disabled";
>> +                     };
>> +             };
>> +
>> +             timers10: timers@40014400 {
>> +                     #address-cells = <1>;
>> +                     #size-cells = <0>;
>> +                     compatible = "st,stm32-timers";
>> +                     reg = <0x40014400 0x400>;
>> +                     clocks = <&rcc 0 177>;
>> +                     clock-names = "clk_int";
>> +                     status = "disabled";
>> +
>> +                     pwm {
>> +                             compatible = "st,stm32-pwm";
>> +                             status = "disabled";
>> +                     };
>> +             };
>> +
>> +             timers11: timers@40014800 {
>> +                     #address-cells = <1>;
>> +                     #size-cells = <0>;
>> +                     compatible = "st,stm32-timers";
>> +                     reg = <0x40014800 0x400>;
>> +                     clocks = <&rcc 0 178>;
>> +                     clock-names = "clk_int";
>> +                     status = "disabled";
>> +
>> +                     pwm {
>> +                             compatible = "st,stm32-pwm";
>> +                             status = "disabled";
>> +                     };
>> +             };
>>       };
>>  };
>>
>> --
>> 1.9.1
>>



-- 
Benjamin Gaignard

Graphic Study Group

Linaro.org │ Open source software for ARM SoCs

Follow Linaro: Facebook | Twitter | Blog

  reply	other threads:[~2016-12-13  9:15 UTC|newest]

Thread overview: 34+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-12-09 14:15 [PATCH v6 0/8] Add PWM and IIO timer drivers for STM32 Benjamin Gaignard
2016-12-09 14:15 ` [PATCH v6 1/8] MFD: add bindings for STM32 Timers driver Benjamin Gaignard
2016-12-12  7:46   ` Lee Jones
2016-12-12 18:51   ` Rob Herring
2016-12-13  9:29     ` Benjamin Gaignard
2016-12-13 21:07       ` Rob Herring
2016-12-14 13:07         ` Benjamin Gaignard
2016-12-09 14:15 ` [PATCH v6 2/8] MFD: add " Benjamin Gaignard
2016-12-12  7:47   ` Lee Jones
2016-12-30 20:38   ` Jonathan Cameron
2016-12-09 14:15 ` [PATCH v6 3/8] PWM: add pwm-stm32 DT bindings Benjamin Gaignard
2016-12-12 19:02   ` Rob Herring
2016-12-13 11:11     ` Lee Jones
2016-12-13 15:57       ` Rob Herring
2016-12-13 16:28         ` Benjamin Gaignard
2016-12-13 17:11           ` Rob Herring
2016-12-19 12:55         ` Lee Jones
2016-12-09 14:15 ` [PATCH v6 4/8] PWM: add PWM driver for STM32 plaftorm Benjamin Gaignard
2016-12-09 14:15 ` [PATCH v6 5/8] IIO: add bindings for STM32 timer trigger driver Benjamin Gaignard
2016-12-12 19:28   ` Rob Herring
2016-12-09 14:15 ` [PATCH v6 6/8] IIO: add " Benjamin Gaignard
2016-12-30 21:12   ` Jonathan Cameron
2017-01-02  8:46     ` Benjamin Gaignard
2017-01-02 18:22       ` Jonathan Cameron
2017-01-03  9:23         ` Benjamin Gaignard
2017-01-03 12:59           ` Benjamin Gaignard
2017-01-03 17:24             ` Jonathan Cameron
2017-01-03 17:16           ` Jonathan Cameron
2016-12-09 14:15 ` [PATCH v6 7/8] ARM: dts: stm32: add Timers driver for stm32f429 MCU Benjamin Gaignard
2016-12-12 18:59   ` Rob Herring
2016-12-13  9:15     ` Benjamin Gaignard [this message]
2016-12-13  9:29     ` Benjamin Gaignard
2016-12-09 14:15 ` [PATCH v6 8/8] ARM: dts: stm32: Enable pw1 and pwm3 for stm32f469-disco Benjamin Gaignard
2016-12-12  7:48 ` [PATCH v6 0/8] Add PWM and IIO timer drivers for STM32 Lee Jones

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