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Subject: Re: [PATCH] ARM: dts: stm32: set i2c4 bus freq to 400KHz on stm32mp15
 DK boards
To:     Alain Volmat <alain.volmat@st.com>, <wsa@the-dreams.de>,
        <robh+dt@kernel.org>
CC:     <mark.rutland@arm.com>, <pierre-yves.mordret@st.com>,
        <mcoquelin.stm32@gmail.com>, <linux-i2c@vger.kernel.org>,
        <devicetree@vger.kernel.org>,
        <linux-stm32@st-md-mailman.stormreply.com>,
        <linux-arm-kernel@lists.infradead.org>,
        <linux-kernel@vger.kernel.org>, <fabrice.gasnier@st.com>
References: <1581355056-13884-1-git-send-email-alain.volmat@st.com>
From:   Alexandre Torgue <alexandre.torgue@st.com>
Message-ID: <7f8a5f6d-4d62-3649-efda-3d02f89a4d07@st.com>
Date:   Fri, 13 Mar 2020 13:50:10 +0100
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Hi Alain

On 2/10/20 6:17 PM, Alain Volmat wrote:
> On DK boards, all I2C4 bus slaves supports I2C Fast Mode hence setting
> the bus frequency to 400 KHz.
> 
> Signed-off-by: Alain Volmat <alain.volmat@st.com>
> ---
>   arch/arm/boot/dts/stm32mp15xx-dkx.dtsi | 1 +
>   1 file changed, 1 insertion(+)
> 
> diff --git a/arch/arm/boot/dts/stm32mp15xx-dkx.dtsi b/arch/arm/boot/dts/stm32mp15xx-dkx.dtsi
> index 7f5fcb2c5b03..2521f428ae67 100644
> --- a/arch/arm/boot/dts/stm32mp15xx-dkx.dtsi
> +++ b/arch/arm/boot/dts/stm32mp15xx-dkx.dtsi
> @@ -221,6 +221,7 @@
>   	pinctrl-1 = <&i2c4_pins_sleep_a>;
>   	i2c-scl-rising-time-ns = <185>;
>   	i2c-scl-falling-time-ns = <20>;
> +	clock-frequency = <400000>;
>   	status = "okay";
>   	/* spare dmas for other usage */
>   	/delete-property/dmas;
> 

Applied on stm32-next.

Thanks.
Alex