From: Alexandre TORGUE <alexandre.torgue@foss.st.com>
To: Amelie Delaunay <amelie.delaunay@foss.st.com>,
Rob Herring <robh+dt@kernel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
Maxime Coquelin <mcoquelin.stm32@gmail.com>
Cc: <devicetree@vger.kernel.org>,
<linux-stm32@st-md-mailman.stormreply.com>,
<linux-arm-kernel@lists.infradead.org>,
<linux-kernel@vger.kernel.org>
Subject: Re: [PATCH 2/2] ARM: dts: stm32: add mcp23017 IO expander on I2C1 on stm32mp135f-dk
Date: Thu, 17 Nov 2022 09:39:06 +0100 [thread overview]
Message-ID: <04c725a0-1382-10e7-8404-992aad007f78@foss.st.com> (raw)
In-Reply-To: <20221024094648.145251-3-amelie.delaunay@foss.st.com>
Hi Amélie
On 10/24/22 11:46, Amelie Delaunay wrote:
> MCP23017 is an IO expander offering 16 input/output port expander with
> interrupt output.
> On stm32mp135f-dk, only INTA is routed (on PG12), but MCP23017 can mirror
> the bank B interrupts on INTA, that's why the property microchip,irq-mirror
> is used.
>
> Signed-off-by: Amelie Delaunay <amelie.delaunay@foss.st.com>
> ---
> arch/arm/boot/dts/stm32mp135f-dk.dts | 14 ++++++++++++++
> 1 file changed, 14 insertions(+)
>
> diff --git a/arch/arm/boot/dts/stm32mp135f-dk.dts b/arch/arm/boot/dts/stm32mp135f-dk.dts
> index a87ab067c955..d5fc6462ba33 100644
> --- a/arch/arm/boot/dts/stm32mp135f-dk.dts
> +++ b/arch/arm/boot/dts/stm32mp135f-dk.dts
> @@ -112,6 +112,20 @@ &i2c1 {
> /* spare dmas for other usage */
> /delete-property/dmas;
> /delete-property/dma-names;
> +
> + mcp23017: pinctrl@21 {
> + compatible = "microchip,mcp23017";
> + reg = <0x21>;
> + gpio-controller;
> + #gpio-cells = <2>;
> + interrupts = <12 IRQ_TYPE_LEVEL_LOW>;
> + interrupt-parent = <&gpiog>;
> + pinctrl-names = "default";
> + pinctrl-0 = <&mcp23017_pins_a>;
> + interrupt-controller;
> + #interrupt-cells = <2>;
> + microchip,irq-mirror;
> + };
> };
>
> &i2c5 {
Both patches applied on stm32-next.
thanks
Alex
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prev parent reply other threads:[~2022-11-17 8:40 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-10-24 9:46 [PATCH 1/2] ARM: dts: stm32: add mcp23017 pinctrl entry for stm32mp13 Amelie Delaunay
2022-10-24 9:46 ` [PATCH 2/2] ARM: dts: stm32: add mcp23017 IO expander on I2C1 on stm32mp135f-dk Amelie Delaunay
2022-11-17 8:39 ` Alexandre TORGUE [this message]
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