mbox series

[v2,0/3] Add support for STM32 vrefbuf regulator

Message ID 1504108529-31727-1-git-send-email-fabrice.gasnier@st.com
Headers show
Series Add support for STM32 vrefbuf regulator | expand

Message

Fabrice Gasnier Aug. 30, 2017, 3:55 p.m. UTC 
Some STM32 devices embed a voltage reference buffer which can be used as
voltage reference for ADCs, DACs and also as voltage reference
for external components through the dedicated VREF+ pin.

This patchset adds vrefbuf regulator driver, device tree bindings and
vrefbuf device tree node for STM32H7 SoC.

---
Changes in v2:
- Update regulator driver following Mark's remarks

Fabrice Gasnier (3):
  dt-bindings: regulator: Add STM32 Voltage Reference Buffer
  regulator: Add support for stm32-vrefbuf
  ARM: dts: stm32: add vrefbuf to stm32h743

 .../bindings/regulator/st,stm32-vrefbuf.txt        |  20 ++
 arch/arm/boot/dts/stm32h743.dtsi                   |   9 +
 drivers/regulator/Kconfig                          |  12 ++
 drivers/regulator/Makefile                         |   1 +
 drivers/regulator/stm32-vrefbuf.c                  | 202 +++++++++++++++++++++
 5 files changed, 244 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/regulator/st,stm32-vrefbuf.txt
 create mode 100644 drivers/regulator/stm32-vrefbuf.c

Comments

Alexandre TORGUE Oct. 6, 2017, 1:01 p.m. UTC | #1 
Hi Fabrice,

On 08/30/2017 05:55 PM, Fabrice Gasnier wrote:
> Add STM32H743 VREFBUF (Voltage Reference Buffer) definition.
> 
> Signed-off-by: Fabrice Gasnier <fabrice.gasnier@st.com>
> ---
>   arch/arm/boot/dts/stm32h743.dtsi | 9 +++++++++
>   1 file changed, 9 insertions(+)
> 
> diff --git a/arch/arm/boot/dts/stm32h743.dtsi b/arch/arm/boot/dts/stm32h743.dtsi
> index 36a99db..83ee8fe 100644
> --- a/arch/arm/boot/dts/stm32h743.dtsi
> +++ b/arch/arm/boot/dts/stm32h743.dtsi
> @@ -82,6 +82,15 @@
>   			interrupts = <50>;
>   			clocks = <&timer_clk>;
>   		};
> +
> +		vrefbuf: regulator@58003C00 {
> +			compatible = "st,stm32-vrefbuf";
> +			reg = <0x58003C00 0x8>;
> +			clocks = <&timer_clk>;
> +			regulator-min-microvolt = <1500000>;
> +			regulator-max-microvolt = <2500000>;
> +			status = "disabled";
> +		};
>   	};
>   };
>   
> 
Applied on stm32-dt-for-v4.15 branch.

Thanks
Alex
--
To unsubscribe from this list: send the line "unsubscribe devicetree" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html