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* [PATCH] ARM: dts: stm32: set i2c4 bus freq to 400KHz on stm32mp157c-ed1
@ 2020-02-10 17:17 ` Alain Volmat
  0 siblings, 0 replies; 6+ 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 this board, the I2C4 bus has only a single slave (pmic) which
supports I2C Fast Mode hence setting bus frequency to 400 KHz.

Signed-off-by: Alain Volmat <alain.volmat@st.com>
---
 arch/arm/boot/dts/stm32mp157c-ed1.dts | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm/boot/dts/stm32mp157c-ed1.dts b/arch/arm/boot/dts/stm32mp157c-ed1.dts
index 209dae010be4..ac4f7ee4ad55 100644
--- a/arch/arm/boot/dts/stm32mp157c-ed1.dts
+++ b/arch/arm/boot/dts/stm32mp157c-ed1.dts
@@ -135,6 +135,7 @@
 	pinctrl-0 = <&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] 6+ messages in thread
* [PATCH] ARM: dts: stm32: set i2c4 bus freq to 400KHz on stm32mp157c-ed1
@ 2020-02-10 17:17 ` Alain Volmat
  0 siblings, 0 replies; 6+ messages in thread
From: Alain Volmat @ 2020-02-10 17:17 UTC (permalink / raw)
  To: wsa-z923LK4zBo2bacvFa/9K2g, robh+dt-DgEjT+Ai2ygdnm+yROfE0A
  Cc: mark.rutland-5wv7dgnIgG8, pierre-yves.mordret-qxv4g6HH51o,
	mcoquelin.stm32-Re5JQEeQqe8AvxtiuMwx3w,
	alexandre.torgue-qxv4g6HH51o, linux-i2c-u79uwXL29TY76Z2rM5mHXA,
	devicetree-u79uwXL29TY76Z2rM5mHXA,
	linux-stm32-XDFAJ8BFU24N7RejjzZ/Li2xQDfSxrLKVpNB7YpNyf8,
	linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r,
	linux-kernel-u79uwXL29TY76Z2rM5mHXA, fabrice.gasnier-qxv4g6HH51o,
	alain.volmat-qxv4g6HH51o

On this board, the I2C4 bus has only a single slave (pmic) which
supports I2C Fast Mode hence setting bus frequency to 400 KHz.

Signed-off-by: Alain Volmat <alain.volmat-qxv4g6HH51o@public.gmane.org>
---
 arch/arm/boot/dts/stm32mp157c-ed1.dts | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm/boot/dts/stm32mp157c-ed1.dts b/arch/arm/boot/dts/stm32mp157c-ed1.dts
index 209dae010be4..ac4f7ee4ad55 100644
--- a/arch/arm/boot/dts/stm32mp157c-ed1.dts
+++ b/arch/arm/boot/dts/stm32mp157c-ed1.dts
@@ -135,6 +135,7 @@
 	pinctrl-0 = <&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] 6+ messages in thread
* [PATCH] ARM: dts: stm32: set i2c4 bus freq to 400KHz on stm32mp157c-ed1
@ 2020-02-10 17:17 ` Alain Volmat
  0 siblings, 0 replies; 6+ messages in thread
From: Alain Volmat @ 2020-02-10 17:17 UTC (permalink / raw)
  To: wsa, robh+dt
  Cc: mark.rutland, devicetree, alexandre.torgue, linux-kernel,
	pierre-yves.mordret, alain.volmat, linux-i2c, mcoquelin.stm32,
	fabrice.gasnier, linux-stm32, linux-arm-kernel

On this board, the I2C4 bus has only a single slave (pmic) which
supports I2C Fast Mode hence setting bus frequency to 400 KHz.

Signed-off-by: Alain Volmat <alain.volmat@st.com>
---
 arch/arm/boot/dts/stm32mp157c-ed1.dts | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm/boot/dts/stm32mp157c-ed1.dts b/arch/arm/boot/dts/stm32mp157c-ed1.dts
index 209dae010be4..ac4f7ee4ad55 100644
--- a/arch/arm/boot/dts/stm32mp157c-ed1.dts
+++ b/arch/arm/boot/dts/stm32mp157c-ed1.dts
@@ -135,6 +135,7 @@
 	pinctrl-0 = <&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


_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

^ permalink raw reply related	[flat|nested] 6+ messages in thread
* Re: [PATCH] ARM: dts: stm32: set i2c4 bus freq to 400KHz on stm32mp157c-ed1
@ 2020-03-13 12:49   ` Alexandre Torgue
  0 siblings, 0 replies; 6+ messages in thread
From: Alexandre Torgue @ 2020-03-13 12:49 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 this board, the I2C4 bus has only a single slave (pmic) which
> supports I2C Fast Mode hence setting bus frequency to 400 KHz.
> 
> Signed-off-by: Alain Volmat <alain.volmat@st.com>
> ---
>   arch/arm/boot/dts/stm32mp157c-ed1.dts | 1 +
>   1 file changed, 1 insertion(+)
> 
> diff --git a/arch/arm/boot/dts/stm32mp157c-ed1.dts b/arch/arm/boot/dts/stm32mp157c-ed1.dts
> index 209dae010be4..ac4f7ee4ad55 100644
> --- a/arch/arm/boot/dts/stm32mp157c-ed1.dts
> +++ b/arch/arm/boot/dts/stm32mp157c-ed1.dts
> @@ -135,6 +135,7 @@
>   	pinctrl-0 = <&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] 6+ messages in thread
* Re: [PATCH] ARM: dts: stm32: set i2c4 bus freq to 400KHz on stm32mp157c-ed1
@ 2020-03-13 12:49   ` Alexandre Torgue
  0 siblings, 0 replies; 6+ messages in thread
From: Alexandre Torgue @ 2020-03-13 12:49 UTC (permalink / raw)
  To: Alain Volmat, wsa-z923LK4zBo2bacvFa/9K2g, robh+dt-DgEjT+Ai2ygdnm+yROfE0A
  Cc: mark.rutland-5wv7dgnIgG8, pierre-yves.mordret-qxv4g6HH51o,
	mcoquelin.stm32-Re5JQEeQqe8AvxtiuMwx3w,
	linux-i2c-u79uwXL29TY76Z2rM5mHXA,
	devicetree-u79uwXL29TY76Z2rM5mHXA,
	linux-stm32-XDFAJ8BFU24N7RejjzZ/Li2xQDfSxrLKVpNB7YpNyf8,
	linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r,
	linux-kernel-u79uwXL29TY76Z2rM5mHXA, fabrice.gasnier-qxv4g6HH51o

Hi Alain

On 2/10/20 6:17 PM, Alain Volmat wrote:
> On this board, the I2C4 bus has only a single slave (pmic) which
> supports I2C Fast Mode hence setting bus frequency to 400 KHz.
> 
> Signed-off-by: Alain Volmat <alain.volmat-qxv4g6HH51o@public.gmane.org>
> ---
>   arch/arm/boot/dts/stm32mp157c-ed1.dts | 1 +
>   1 file changed, 1 insertion(+)
> 
> diff --git a/arch/arm/boot/dts/stm32mp157c-ed1.dts b/arch/arm/boot/dts/stm32mp157c-ed1.dts
> index 209dae010be4..ac4f7ee4ad55 100644
> --- a/arch/arm/boot/dts/stm32mp157c-ed1.dts
> +++ b/arch/arm/boot/dts/stm32mp157c-ed1.dts
> @@ -135,6 +135,7 @@
>   	pinctrl-0 = <&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] 6+ messages in thread
* Re: [PATCH] ARM: dts: stm32: set i2c4 bus freq to 400KHz on stm32mp157c-ed1
@ 2020-03-13 12:49   ` Alexandre Torgue
  0 siblings, 0 replies; 6+ messages in thread
From: Alexandre Torgue @ 2020-03-13 12:49 UTC (permalink / raw)
  To: Alain Volmat, wsa, robh+dt
  Cc: mark.rutland, devicetree, linux-kernel, pierre-yves.mordret,
	linux-i2c, mcoquelin.stm32, fabrice.gasnier, linux-stm32,
	linux-arm-kernel

Hi Alain

On 2/10/20 6:17 PM, Alain Volmat wrote:
> On this board, the I2C4 bus has only a single slave (pmic) which
> supports I2C Fast Mode hence setting bus frequency to 400 KHz.
> 
> Signed-off-by: Alain Volmat <alain.volmat@st.com>
> ---
>   arch/arm/boot/dts/stm32mp157c-ed1.dts | 1 +
>   1 file changed, 1 insertion(+)
> 
> diff --git a/arch/arm/boot/dts/stm32mp157c-ed1.dts b/arch/arm/boot/dts/stm32mp157c-ed1.dts
> index 209dae010be4..ac4f7ee4ad55 100644
> --- a/arch/arm/boot/dts/stm32mp157c-ed1.dts
> +++ b/arch/arm/boot/dts/stm32mp157c-ed1.dts
> @@ -135,6 +135,7 @@
>   	pinctrl-0 = <&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

_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

^ permalink raw reply	[flat|nested] 6+ messages in thread
end of thread, other threads:[~2020-03-13 12:50 UTC | newest]

Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2020-02-10 17:17 [PATCH] ARM: dts: stm32: set i2c4 bus freq to 400KHz on stm32mp157c-ed1 Alain Volmat
2020-02-10 17:17 ` Alain Volmat
2020-02-10 17:17 ` Alain Volmat
2020-03-13 12:49 ` Alexandre Torgue
2020-03-13 12:49   ` Alexandre Torgue
2020-03-13 12:49   ` Alexandre Torgue

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