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* [PATCH 0/3] STM32 update uart4 pin configuration for low power
@ 2020-05-28  7:38 ` Erwan Le Ray
  0 siblings, 0 replies; 10+ messages in thread
From: Erwan Le Ray @ 2020-05-28  7:38 UTC (permalink / raw)
  To: Maxime Coquelin, Alexandre Torgue, Rob Herring, Mark Rutland
  Cc: linux-stm32, linux-arm-kernel, devicetree, linux-kernel,
	Erwan Le Ray, Fabrice Gasnier

Update uart4 pin configuration for low power in pinctrl, and for ed/ev
and dkx boards.

Erwan Le Ray (3):
  ARM: dts: stm32: update uart4 pin configuration for low power on
    stm32mp157
  ARM: dts: stm32: Update pin states for uart4 on stm32mp157c-ed1
  ARM: dts: stm32: Update UART4 pin states on stm32mp15xx-dkx

 arch/arm/boot/dts/stm32mp15-pinctrl.dtsi | 17 +++++++++++++++++
 arch/arm/boot/dts/stm32mp157c-ed1.dts    |  4 +++-
 arch/arm/boot/dts/stm32mp15xx-dkx.dtsi   |  4 +++-
 3 files changed, 23 insertions(+), 2 deletions(-)

-- 
2.17.1


^ permalink raw reply	[flat|nested] 10+ messages in thread
* [PATCH 0/3] STM32 update uart4 pin configuration for low power
@ 2020-05-28  7:38 ` Erwan Le Ray
  0 siblings, 0 replies; 10+ messages in thread
From: Erwan Le Ray @ 2020-05-28  7:38 UTC (permalink / raw)
  To: Maxime Coquelin, Alexandre Torgue, Rob Herring, Mark Rutland
  Cc: devicetree, linux-kernel, linux-arm-kernel, Fabrice Gasnier,
	linux-stm32, Erwan Le Ray

Update uart4 pin configuration for low power in pinctrl, and for ed/ev
and dkx boards.

Erwan Le Ray (3):
  ARM: dts: stm32: update uart4 pin configuration for low power on
    stm32mp157
  ARM: dts: stm32: Update pin states for uart4 on stm32mp157c-ed1
  ARM: dts: stm32: Update UART4 pin states on stm32mp15xx-dkx

 arch/arm/boot/dts/stm32mp15-pinctrl.dtsi | 17 +++++++++++++++++
 arch/arm/boot/dts/stm32mp157c-ed1.dts    |  4 +++-
 arch/arm/boot/dts/stm32mp15xx-dkx.dtsi   |  4 +++-
 3 files changed, 23 insertions(+), 2 deletions(-)

-- 
2.17.1


_______________________________________________
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] 10+ messages in thread
* [PATCH 1/3] ARM: dts: stm32: update uart4 pin configuration for low power on stm32mp157
  2020-05-28  7:38 ` Erwan Le Ray
@ 2020-05-28  7:38   ` Erwan Le Ray
  -1 siblings, 0 replies; 10+ messages in thread
From: Erwan Le Ray @ 2020-05-28  7:38 UTC (permalink / raw)
  To: Maxime Coquelin, Alexandre Torgue, Rob Herring, Mark Rutland
  Cc: linux-stm32, linux-arm-kernel, devicetree, linux-kernel,
	Erwan Le Ray, Fabrice Gasnier, Bich Hemon

Sleep pin configuration is refined for low power modes:
- "sleep" (no wakeup & console suspend enabled): put pins in analog state
  to optimize power
- "idle" (wakeup capability): keep Rx pin in alternate function

Signed-off-by: Bich Hemon <bich.hemon@st.com>
Signed-off-by: Erwan Le Ray <erwan.leray@st.com>

diff --git a/arch/arm/boot/dts/stm32mp15-pinctrl.dtsi b/arch/arm/boot/dts/stm32mp15-pinctrl.dtsi
index 7eb858732d6d..7cf535dc05f5 100644
--- a/arch/arm/boot/dts/stm32mp15-pinctrl.dtsi
+++ b/arch/arm/boot/dts/stm32mp15-pinctrl.dtsi
@@ -1648,6 +1648,23 @@
 		};
 	};
 
+	uart4_idle_pins_a: uart4-idle-0 {
+		   pins1 {
+			 pinmux = <STM32_PINMUX('G', 11, ANALOG)>; /* UART4_TX */
+		   };
+		   pins2 {
+			 pinmux = <STM32_PINMUX('B', 2, AF8)>; /* UART4_RX */
+			 bias-disable;
+		   };
+	};
+
+	uart4_sleep_pins_a: uart4-sleep-0 {
+		   pins {
+			pinmux = <STM32_PINMUX('G', 11, ANALOG)>, /* UART4_TX */
+				 <STM32_PINMUX('B', 2, ANALOG)>; /* UART4_RX */
+		    };
+	};
+
 	uart4_pins_b: uart4-1 {
 		pins1 {
 			pinmux = <STM32_PINMUX('D', 1, AF8)>; /* UART4_TX */
-- 
2.17.1


^ permalink raw reply related	[flat|nested] 10+ messages in thread
* [PATCH 1/3] ARM: dts: stm32: update uart4 pin configuration for low power on stm32mp157
@ 2020-05-28  7:38   ` Erwan Le Ray
  0 siblings, 0 replies; 10+ messages in thread
From: Erwan Le Ray @ 2020-05-28  7:38 UTC (permalink / raw)
  To: Maxime Coquelin, Alexandre Torgue, Rob Herring, Mark Rutland
  Cc: devicetree, linux-kernel, linux-arm-kernel, Bich Hemon,
	Fabrice Gasnier, linux-stm32, Erwan Le Ray

Sleep pin configuration is refined for low power modes:
- "sleep" (no wakeup & console suspend enabled): put pins in analog state
  to optimize power
- "idle" (wakeup capability): keep Rx pin in alternate function

Signed-off-by: Bich Hemon <bich.hemon@st.com>
Signed-off-by: Erwan Le Ray <erwan.leray@st.com>

diff --git a/arch/arm/boot/dts/stm32mp15-pinctrl.dtsi b/arch/arm/boot/dts/stm32mp15-pinctrl.dtsi
index 7eb858732d6d..7cf535dc05f5 100644
--- a/arch/arm/boot/dts/stm32mp15-pinctrl.dtsi
+++ b/arch/arm/boot/dts/stm32mp15-pinctrl.dtsi
@@ -1648,6 +1648,23 @@
 		};
 	};
 
+	uart4_idle_pins_a: uart4-idle-0 {
+		   pins1 {
+			 pinmux = <STM32_PINMUX('G', 11, ANALOG)>; /* UART4_TX */
+		   };
+		   pins2 {
+			 pinmux = <STM32_PINMUX('B', 2, AF8)>; /* UART4_RX */
+			 bias-disable;
+		   };
+	};
+
+	uart4_sleep_pins_a: uart4-sleep-0 {
+		   pins {
+			pinmux = <STM32_PINMUX('G', 11, ANALOG)>, /* UART4_TX */
+				 <STM32_PINMUX('B', 2, ANALOG)>; /* UART4_RX */
+		    };
+	};
+
 	uart4_pins_b: uart4-1 {
 		pins1 {
 			pinmux = <STM32_PINMUX('D', 1, AF8)>; /* UART4_TX */
-- 
2.17.1


_______________________________________________
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] 10+ messages in thread
* [PATCH 2/3] ARM: dts: stm32: Update pin states for uart4 on stm32mp157c-ed1
  2020-05-28  7:38 ` Erwan Le Ray
@ 2020-05-28  7:38   ` Erwan Le Ray
  -1 siblings, 0 replies; 10+ messages in thread
From: Erwan Le Ray @ 2020-05-28  7:38 UTC (permalink / raw)
  To: Maxime Coquelin, Alexandre Torgue, Rob Herring, Mark Rutland
  Cc: linux-stm32, linux-arm-kernel, devicetree, linux-kernel,
	Erwan Le Ray, Fabrice Gasnier

Add sleep and idle states to uart4 pin configuration.

Signed-off-by: Erwan Le Ray <erwan.leray@st.com>

diff --git a/arch/arm/boot/dts/stm32mp157c-ed1.dts b/arch/arm/boot/dts/stm32mp157c-ed1.dts
index 32ccd50b4144..ca109dc18238 100644
--- a/arch/arm/boot/dts/stm32mp157c-ed1.dts
+++ b/arch/arm/boot/dts/stm32mp157c-ed1.dts
@@ -353,8 +353,10 @@
 };
 
 &uart4 {
-	pinctrl-names = "default";
+	pinctrl-names = "default", "sleep", "idle";
 	pinctrl-0 = <&uart4_pins_a>;
+	pinctrl-1 = <&uart4_sleep_pins_a>;
+	pinctrl-2 = <&uart4_idle_pins_a>;
 	status = "okay";
 };
 
-- 
2.17.1


^ permalink raw reply related	[flat|nested] 10+ messages in thread
* [PATCH 2/3] ARM: dts: stm32: Update pin states for uart4 on stm32mp157c-ed1
@ 2020-05-28  7:38   ` Erwan Le Ray
  0 siblings, 0 replies; 10+ messages in thread
From: Erwan Le Ray @ 2020-05-28  7:38 UTC (permalink / raw)
  To: Maxime Coquelin, Alexandre Torgue, Rob Herring, Mark Rutland
  Cc: devicetree, linux-kernel, linux-arm-kernel, Fabrice Gasnier,
	linux-stm32, Erwan Le Ray

Add sleep and idle states to uart4 pin configuration.

Signed-off-by: Erwan Le Ray <erwan.leray@st.com>

diff --git a/arch/arm/boot/dts/stm32mp157c-ed1.dts b/arch/arm/boot/dts/stm32mp157c-ed1.dts
index 32ccd50b4144..ca109dc18238 100644
--- a/arch/arm/boot/dts/stm32mp157c-ed1.dts
+++ b/arch/arm/boot/dts/stm32mp157c-ed1.dts
@@ -353,8 +353,10 @@
 };
 
 &uart4 {
-	pinctrl-names = "default";
+	pinctrl-names = "default", "sleep", "idle";
 	pinctrl-0 = <&uart4_pins_a>;
+	pinctrl-1 = <&uart4_sleep_pins_a>;
+	pinctrl-2 = <&uart4_idle_pins_a>;
 	status = "okay";
 };
 
-- 
2.17.1


_______________________________________________
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] 10+ messages in thread
* [PATCH 3/3] ARM: dts: stm32: Update UART4 pin states on stm32mp15xx-dkx
  2020-05-28  7:38 ` Erwan Le Ray
@ 2020-05-28  7:38   ` Erwan Le Ray
  -1 siblings, 0 replies; 10+ messages in thread
From: Erwan Le Ray @ 2020-05-28  7:38 UTC (permalink / raw)
  To: Maxime Coquelin, Alexandre Torgue, Rob Herring, Mark Rutland
  Cc: linux-stm32, linux-arm-kernel, devicetree, linux-kernel,
	Erwan Le Ray, Fabrice Gasnier

Add sleep and idle states to uart4 pin configuration.

Signed-off-by: Erwan Le Ray <erwan.leray@st.com>

diff --git a/arch/arm/boot/dts/stm32mp15xx-dkx.dtsi b/arch/arm/boot/dts/stm32mp15xx-dkx.dtsi
index 70db923a45f7..e5fdbc149bf4 100644
--- a/arch/arm/boot/dts/stm32mp15xx-dkx.dtsi
+++ b/arch/arm/boot/dts/stm32mp15xx-dkx.dtsi
@@ -584,8 +584,10 @@
 };
 
 &uart4 {
-	pinctrl-names = "default";
+	pinctrl-names = "default", "sleep", "idle";
 	pinctrl-0 = <&uart4_pins_a>;
+	pinctrl-1 = <&uart4_sleep_pins_a>;
+	pinctrl-2 = <&uart4_idle_pins_a>;
 	status = "okay";
 };
 
-- 
2.17.1


^ permalink raw reply related	[flat|nested] 10+ messages in thread
* [PATCH 3/3] ARM: dts: stm32: Update UART4 pin states on stm32mp15xx-dkx
@ 2020-05-28  7:38   ` Erwan Le Ray
  0 siblings, 0 replies; 10+ messages in thread
From: Erwan Le Ray @ 2020-05-28  7:38 UTC (permalink / raw)
  To: Maxime Coquelin, Alexandre Torgue, Rob Herring, Mark Rutland
  Cc: devicetree, linux-kernel, linux-arm-kernel, Fabrice Gasnier,
	linux-stm32, Erwan Le Ray

Add sleep and idle states to uart4 pin configuration.

Signed-off-by: Erwan Le Ray <erwan.leray@st.com>

diff --git a/arch/arm/boot/dts/stm32mp15xx-dkx.dtsi b/arch/arm/boot/dts/stm32mp15xx-dkx.dtsi
index 70db923a45f7..e5fdbc149bf4 100644
--- a/arch/arm/boot/dts/stm32mp15xx-dkx.dtsi
+++ b/arch/arm/boot/dts/stm32mp15xx-dkx.dtsi
@@ -584,8 +584,10 @@
 };
 
 &uart4 {
-	pinctrl-names = "default";
+	pinctrl-names = "default", "sleep", "idle";
 	pinctrl-0 = <&uart4_pins_a>;
+	pinctrl-1 = <&uart4_sleep_pins_a>;
+	pinctrl-2 = <&uart4_idle_pins_a>;
 	status = "okay";
 };
 
-- 
2.17.1


_______________________________________________
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] 10+ messages in thread
* Re: [PATCH 0/3] STM32 update uart4 pin configuration for low power
  2020-05-28  7:38 ` Erwan Le Ray
@ 2020-06-15 10:12   ` Alexandre Torgue
  -1 siblings, 0 replies; 10+ messages in thread
From: Alexandre Torgue @ 2020-06-15 10:12 UTC (permalink / raw)
  To: Erwan Le Ray, Maxime Coquelin, Rob Herring, Mark Rutland
  Cc: linux-stm32, linux-arm-kernel, devicetree, linux-kernel, Fabrice Gasnier

Hi Erwan

On 5/28/20 9:38 AM, Erwan Le Ray wrote:
> Update uart4 pin configuration for low power in pinctrl, and for ed/ev
> and dkx boards.
> 
> Erwan Le Ray (3):
>    ARM: dts: stm32: update uart4 pin configuration for low power on
>      stm32mp157
>    ARM: dts: stm32: Update pin states for uart4 on stm32mp157c-ed1
>    ARM: dts: stm32: Update UART4 pin states on stm32mp15xx-dkx
> 
>   arch/arm/boot/dts/stm32mp15-pinctrl.dtsi | 17 +++++++++++++++++
>   arch/arm/boot/dts/stm32mp157c-ed1.dts    |  4 +++-
>   arch/arm/boot/dts/stm32mp15xx-dkx.dtsi   |  4 +++-
>   3 files changed, 23 insertions(+), 2 deletions(-)
> 

Series applied on stm32-next.

Regards
Alex

^ permalink raw reply	[flat|nested] 10+ messages in thread
* Re: [PATCH 0/3] STM32 update uart4 pin configuration for low power
@ 2020-06-15 10:12   ` Alexandre Torgue
  0 siblings, 0 replies; 10+ messages in thread
From: Alexandre Torgue @ 2020-06-15 10:12 UTC (permalink / raw)
  To: Erwan Le Ray, Maxime Coquelin, Rob Herring, Mark Rutland
  Cc: devicetree, Fabrice Gasnier, linux-stm32, linux-arm-kernel, linux-kernel

Hi Erwan

On 5/28/20 9:38 AM, Erwan Le Ray wrote:
> Update uart4 pin configuration for low power in pinctrl, and for ed/ev
> and dkx boards.
> 
> Erwan Le Ray (3):
>    ARM: dts: stm32: update uart4 pin configuration for low power on
>      stm32mp157
>    ARM: dts: stm32: Update pin states for uart4 on stm32mp157c-ed1
>    ARM: dts: stm32: Update UART4 pin states on stm32mp15xx-dkx
> 
>   arch/arm/boot/dts/stm32mp15-pinctrl.dtsi | 17 +++++++++++++++++
>   arch/arm/boot/dts/stm32mp157c-ed1.dts    |  4 +++-
>   arch/arm/boot/dts/stm32mp15xx-dkx.dtsi   |  4 +++-
>   3 files changed, 23 insertions(+), 2 deletions(-)
> 

Series applied on stm32-next.

Regards
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] 10+ messages in thread
end of thread, other threads:[~2020-06-15 10:12 UTC | newest]

Thread overview: 10+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2020-05-28  7:38 [PATCH 0/3] STM32 update uart4 pin configuration for low power Erwan Le Ray
2020-05-28  7:38 ` Erwan Le Ray
2020-05-28  7:38 ` [PATCH 1/3] ARM: dts: stm32: update uart4 pin configuration for low power on stm32mp157 Erwan Le Ray
2020-05-28  7:38   ` Erwan Le Ray
2020-05-28  7:38 ` [PATCH 2/3] ARM: dts: stm32: Update pin states for uart4 on stm32mp157c-ed1 Erwan Le Ray
2020-05-28  7:38   ` Erwan Le Ray
2020-05-28  7:38 ` [PATCH 3/3] ARM: dts: stm32: Update UART4 pin states on stm32mp15xx-dkx Erwan Le Ray
2020-05-28  7:38   ` Erwan Le Ray
2020-06-15 10:12 ` [PATCH 0/3] STM32 update uart4 pin configuration for low power Alexandre Torgue
2020-06-15 10:12   ` Alexandre Torgue

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