* [PATCH] ARM: dts: stm32: set i2c4 bus freq to 400KHz on stm32mp15 DK boards
@ 2020-02-10 17:17 Alain Volmat
2020-03-13 12:50 ` Alexandre Torgue
0 siblings, 1 reply; 2+ messages in thread
From: Alain Volmat @ 2020-02-10 17:17 UTC (permalink / raw)
To: wsa, robh+dt
Cc: mark.rutland, pierre-yves.mordret, mcoquelin.stm32,
alexandre.torgue, linux-i2c, devicetree, linux-stm32,
linux-arm-kernel, linux-kernel, fabrice.gasnier, alain.volmat
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;
--
2.7.4
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH] ARM: dts: stm32: set i2c4 bus freq to 400KHz on stm32mp15 DK boards
2020-02-10 17:17 [PATCH] ARM: dts: stm32: set i2c4 bus freq to 400KHz on stm32mp15 DK boards Alain Volmat
@ 2020-03-13 12:50 ` Alexandre Torgue
0 siblings, 0 replies; 2+ messages in thread
From: Alexandre Torgue @ 2020-03-13 12:50 UTC (permalink / raw)
To: Alain Volmat, wsa, robh+dt
Cc: mark.rutland, pierre-yves.mordret, mcoquelin.stm32, linux-i2c,
devicetree, linux-stm32, linux-arm-kernel, linux-kernel,
fabrice.gasnier
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
^ permalink raw reply [flat|nested] 2+ messages in thread
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2020-02-10 17:17 [PATCH] ARM: dts: stm32: set i2c4 bus freq to 400KHz on stm32mp15 DK boards Alain Volmat
2020-03-13 12:50 ` Alexandre Torgue
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