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Date: Mon, 12 Dec 2016 12:59:43 -0600
From: Rob Herring <robh@...nel.org>
To: Benjamin Gaignard <benjamin.gaignard@...aro.org>
Cc: lee.jones@...aro.org, mark.rutland@....com,
alexandre.torgue@...com, devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org, thierry.reding@...il.com,
linux-pwm@...r.kernel.org, jic23@...nel.org, knaack.h@....de,
lars@...afoo.de, pmeerw@...erw.net, linux-iio@...r.kernel.org,
linux-arm-kernel@...ts.infradead.org, fabrice.gasnier@...com,
gerald.baeza@...com, arnaud.pouliquen@...com,
linus.walleij@...aro.org, linaro-kernel@...ts.linaro.org,
Benjamin Gaignard <benjamin.gaignard@...com>
Subject: Re: [PATCH v6 7/8] ARM: dts: stm32: add Timers driver for stm32f429
MCU
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@...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@...23810 {
> @@ -426,6 +441,266 @@
> interrupts = <80>;
> clocks = <&rcc 0 38>;
> };
> +
> + timers2: timers@...00000 {
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@...00400 {
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@...00800 {
> + #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@...00C00 {
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@...01000 {
> + #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@...01400 {
> + #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@...01800 {
> + #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@...01C00 {
> + #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@...02000 {
> + #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@...10000 {
> + #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@...10400 {
> + #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@...14000 {
> + #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@...14400 {
> + #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@...14800 {
> + #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
>
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