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[PATCH 0/9] Add STM32 EXTI interrupt controller support

Started byMaxime Coquelin <mcoquelin.stm32@gmail.com>
First post2015-10-17 19:30 +0200
Last post2015-10-17 19:30 +0200
Articles 6 — 1 participant

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  [PATCH 0/9] Add STM32 EXTI interrupt controller support Maxime Coquelin <mcoquelin.stm32@gmail.com> - 2015-10-17 19:30 +0200
    [PATCH 1/9] Documentation: dt-bindings: Document STM32 EXTI controller bindings Maxime Coquelin <mcoquelin.stm32@gmail.com> - 2015-10-17 19:30 +0200
    [PATCH 9/9] ARM: config: Enable GPIO Key driver in stm32_defconfig Maxime Coquelin <mcoquelin.stm32@gmail.com> - 2015-10-17 19:30 +0200
    [PATCH 7/9] ARM: dts: Add GPIO irq support to STM2F429 Maxime Coquelin <mcoquelin.stm32@gmail.com> - 2015-10-17 19:30 +0200
    [PATCH 8/9] ARM: dts: Declare push button as GPIO key on stm32f429 Disco board Maxime Coquelin <mcoquelin.stm32@gmail.com> - 2015-10-17 19:30 +0200
    [PATCH 5/9] Documentation: dt-bindings: Add IRQ related properties of STM32 pinctrl Maxime Coquelin <mcoquelin.stm32@gmail.com> - 2015-10-17 19:30 +0200

#1249384 — [PATCH 0/9] Add STM32 EXTI interrupt controller support

FromMaxime Coquelin <mcoquelin.stm32@gmail.com>
Date2015-10-17 19:30 +0200
Subject[PATCH 0/9] Add STM32 EXTI interrupt controller support
Message-ID<qkDsR-4cT-3@gated-at.bofh.it>
This series adds support to EXTI interrupt controller and GPIO IRQ support in
STM32 pinctrl driver.

The STM32 external interrupt controller consists of edge detectors that
generate interrupts requests or wake-up events.

Each line can be independently configured as interrupt or wake-up source,
and triggers either on rising, fallin or both edges. Each line can also
be masked independently.

This series applies on top of STM32 pinctrl v2 series.

Regards,
Maxime

Maxime Coquelin (9):
  Documentation: dt-bindings: Document STM32 EXTI controller bindings
  drivers: irqchip: Add STM32 external interrupts support
  ARM: STM32: Select external interrupts controller
  ARM: dts: Add EXTI controller node to stm32f429
  Documentation: dt-bindings: Add IRQ related properties of STM32
    pinctrl
  pinctrl: Add IRQ support to STM32 gpios
  ARM: dts: Add GPIO irq support to STM2F429
  ARM: dts: Declare push button as GPIO key on stm32f429 Disco board
  ARM: config: Enable GPIO Key driver in stm32_defconfig

 .../interrupt-controller/st,stm32-exti.txt         |  20 +++
 .../bindings/pinctrl/st,stm32-pinctrl.txt          |   3 +
 arch/arm/Kconfig                                   |   1 +
 arch/arm/boot/dts/stm32429i-eval.dts               |  19 +++
 arch/arm/boot/dts/stm32f429-disco.dts              |  13 ++
 arch/arm/boot/dts/stm32f429.dtsi                   |  15 ++
 arch/arm/configs/stm32_defconfig                   |   6 +-
 drivers/irqchip/Kconfig                            |   4 +
 drivers/irqchip/Makefile                           |   1 +
 drivers/irqchip/irq-stm32-exti.c                   | 169 +++++++++++++++++++++
 drivers/pinctrl/stm32/Kconfig                      |   1 +
 drivers/pinctrl/stm32/pinctrl-stm32.c              |  68 +++++++++
 12 files changed, 319 insertions(+), 1 deletion(-)
 create mode 100644 Documentation/devicetree/bindings/interrupt-controller/st,stm32-exti.txt
 create mode 100644 drivers/irqchip/irq-stm32-exti.c

-- 
1.9.1

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#1249385 — [PATCH 1/9] Documentation: dt-bindings: Document STM32 EXTI controller bindings

FromMaxime Coquelin <mcoquelin.stm32@gmail.com>
Date2015-10-17 19:30 +0200
Subject[PATCH 1/9] Documentation: dt-bindings: Document STM32 EXTI controller bindings
Message-ID<qkDsS-4cT-33@gated-at.bofh.it>
In reply to#1249384
Signed-off-by: Maxime Coquelin <mcoquelin.stm32@gmail.com>
---
 .../bindings/interrupt-controller/st,stm32-exti.txt  | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/interrupt-controller/st,stm32-exti.txt

diff --git a/Documentation/devicetree/bindings/interrupt-controller/st,stm32-exti.txt b/Documentation/devicetree/bindings/interrupt-controller/st,stm32-exti.txt
new file mode 100644
index 0000000..6e7703d
--- /dev/null
+++ b/Documentation/devicetree/bindings/interrupt-controller/st,stm32-exti.txt
@@ -0,0 +1,20 @@
+STM32 External Interrupt Controller
+
+Required properties:
+
+- compatible: Should be "st,stm32-exti"
+- reg: Specifies base physical address and size of the registers
+- interrupt-controller: Indentifies the node as an interrupt controller
+- #interrupt-cells: Specifies the number of cells to encode an interrupt
+  specifier, shall be 2
+- interrupts: interrupts references to primary interrupt controller
+
+Example:
+
+exti: interrupt-controller@40013c00 {
+	compatible = "st,stm32-exti";
+	interrupt-controller;
+	#interrupt-cells = <2>;
+	reg = <0x40013C00 0x400>;
+	interrupts = <1>, <2>, <3>, <6>, <7>, <8>, <9>, <10>, <23>, <40>, <41>, <42>, <62>, <76>;
+};
-- 
1.9.1

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#1249386 — [PATCH 9/9] ARM: config: Enable GPIO Key driver in stm32_defconfig

FromMaxime Coquelin <mcoquelin.stm32@gmail.com>
Date2015-10-17 19:30 +0200
Subject[PATCH 9/9] ARM: config: Enable GPIO Key driver in stm32_defconfig
Message-ID<qkDsS-4cT-37@gated-at.bofh.it>
In reply to#1249384
Signed-off-by: Maxime Coquelin <mcoquelin.stm32@gmail.com>
---
 arch/arm/configs/stm32_defconfig | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/arch/arm/configs/stm32_defconfig b/arch/arm/configs/stm32_defconfig
index 92ade2e..31894ef 100644
--- a/arch/arm/configs/stm32_defconfig
+++ b/arch/arm/configs/stm32_defconfig
@@ -38,7 +38,11 @@ CONFIG_DEVTMPFS_MOUNT=y
 # CONFIG_FW_LOADER is not set
 # CONFIG_BLK_DEV is not set
 CONFIG_EEPROM_93CX6=y
-# CONFIG_INPUT is not set
+# CONFIG_INPUT_LEDS is not set
+# CONFIG_INPUT_MOUSEDEV is not set
+# CONFIG_KEYBOARD_ATKBD is not set
+CONFIG_KEYBOARD_GPIO=y
+# CONFIG_INPUT_MOUSE is not set
 # CONFIG_SERIO is not set
 # CONFIG_VT is not set
 # CONFIG_UNIX98_PTYS is not set
-- 
1.9.1

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#1249387 — [PATCH 7/9] ARM: dts: Add GPIO irq support to STM2F429

FromMaxime Coquelin <mcoquelin.stm32@gmail.com>
Date2015-10-17 19:30 +0200
Subject[PATCH 7/9] ARM: dts: Add GPIO irq support to STM2F429
Message-ID<qkDsS-4cT-35@gated-at.bofh.it>
In reply to#1249384
Signed-off-by: Maxime Coquelin <mcoquelin.stm32@gmail.com>
---
 arch/arm/boot/dts/stm32f429.dtsi | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/arch/arm/boot/dts/stm32f429.dtsi b/arch/arm/boot/dts/stm32f429.dtsi
index a2c3aaa..bc84e8b 100644
--- a/arch/arm/boot/dts/stm32f429.dtsi
+++ b/arch/arm/boot/dts/stm32f429.dtsi
@@ -169,6 +169,11 @@
 			status = "disabled";
 		};
 
+		syscfg: system-config@40013800 {
+			compatible = "syscon";
+			reg = <0x40013800 0x400>;
+		};
+
 		exti: interrupt-controller@40013c00 {
 			compatible = "st,stm32-exti";
 			interrupt-controller;
@@ -182,6 +187,8 @@
 			#size-cells = <1>;
 			compatible = "st,stm32f429-pinctrl";
 			ranges = <0 0x40020000 0x3000>;
+			interrupt-parent = <&exti>;
+			st,syscfg = <&syscfg 0x8>;
 			pins-are-numbered;
 
 			gpioa: gpio@40020000 {
-- 
1.9.1

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#1249389 — [PATCH 8/9] ARM: dts: Declare push button as GPIO key on stm32f429 Disco board

FromMaxime Coquelin <mcoquelin.stm32@gmail.com>
Date2015-10-17 19:30 +0200
Subject[PATCH 8/9] ARM: dts: Declare push button as GPIO key on stm32f429 Disco board
Message-ID<qkDsT-4cT-41@gated-at.bofh.it>
In reply to#1249384
Signed-off-by: Maxime Coquelin <mcoquelin.stm32@gmail.com>
---
 arch/arm/boot/dts/stm32429i-eval.dts  | 19 +++++++++++++++++++
 arch/arm/boot/dts/stm32f429-disco.dts | 13 +++++++++++++
 2 files changed, 32 insertions(+)

diff --git a/arch/arm/boot/dts/stm32429i-eval.dts b/arch/arm/boot/dts/stm32429i-eval.dts
index 71fe17a..be21931 100644
--- a/arch/arm/boot/dts/stm32429i-eval.dts
+++ b/arch/arm/boot/dts/stm32429i-eval.dts
@@ -47,6 +47,7 @@
 
 /dts-v1/;
 #include "stm32f429.dtsi"
+#include <dt-bindings/input/input.h>
 
 / {
 	model = "STMicroelectronics STM32429i-EVAL board";
@@ -64,6 +65,24 @@
 	aliases {
 		serial0 = &usart1;
 	};
+
+	gpio_keys {
+		compatible = "gpio-keys";
+		#address-cells = <1>;
+		#size-cells = <0>;
+		autorepeat;
+		button@0 {
+			label = "Wake up";
+			linux,code = <KEY_WAKEUP>;
+			gpios = <&gpioa 0 0>;
+		};
+		button@1 {
+			label = "Tamper";
+			linux,code = <KEY_RESTART>;
+			gpios = <&gpioc 13 0>;
+		};
+
+	};
 };
 
 &clk_hse {
diff --git a/arch/arm/boot/dts/stm32f429-disco.dts b/arch/arm/boot/dts/stm32f429-disco.dts
index 532c499..2cb4c9e 100644
--- a/arch/arm/boot/dts/stm32f429-disco.dts
+++ b/arch/arm/boot/dts/stm32f429-disco.dts
@@ -47,6 +47,7 @@
 
 /dts-v1/;
 #include "stm32f429.dtsi"
+#include <dt-bindings/input/input.h>
 
 / {
 	model = "STMicroelectronics STM32F429i-DISCO board";
@@ -74,6 +75,18 @@
 			gpios = <&gpiog 13 0>;
 		};
 	};
+
+	gpio_keys {
+		compatible = "gpio-keys";
+		#address-cells = <1>;
+		#size-cells = <0>;
+		autorepeat;
+		button@0 {
+			label = "User";
+			linux,code = <KEY_HOME>;
+			gpios = <&gpioa 0 0>;
+		};
+	};
 };
 
 &clk_hse {
-- 
1.9.1

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#1249392 — [PATCH 5/9] Documentation: dt-bindings: Add IRQ related properties of STM32 pinctrl

FromMaxime Coquelin <mcoquelin.stm32@gmail.com>
Date2015-10-17 19:30 +0200
Subject[PATCH 5/9] Documentation: dt-bindings: Add IRQ related properties of STM32 pinctrl
Message-ID<qkDsT-4cT-49@gated-at.bofh.it>
In reply to#1249384
Signed-off-by: Maxime Coquelin <mcoquelin.stm32@gmail.com>
---
 Documentation/devicetree/bindings/pinctrl/st,stm32-pinctrl.txt | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/Documentation/devicetree/bindings/pinctrl/st,stm32-pinctrl.txt b/Documentation/devicetree/bindings/pinctrl/st,stm32-pinctrl.txt
index 7b4800c..dd95bec 100644
--- a/Documentation/devicetree/bindings/pinctrl/st,stm32-pinctrl.txt
+++ b/Documentation/devicetree/bindings/pinctrl/st,stm32-pinctrl.txt
@@ -13,6 +13,9 @@ Required properies:
  - #size-cells	: The value of this property must be 1
  - ranges	: defines mapping between pin controller node (parent) to
    gpio-bank node (children).
+ - interrupt-parent: phandle of the interrupt parent to which the external
+   GPIO interrupts are forwarded to.
+ - st,syscfg: phandle of the syscfg node used for IRQ mux selection.
  - pins-are-numbered: Specify the subnodes are using numbered pinmux to
    specify pins.
 
-- 
1.9.1

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