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    Subject[PATCH v2 10/10] ARM: dts: stm32: add wakeup capability on each usart/uart on stm32mp157c
    Date
    - Mark all usart/uart devices as wakeup source.
    - Identify all dedicated interrupts with a specific interrupt name (either
    "event" or "wakeup").
    - add interrupts-extended wakeup interrupt

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

    diff --git a/arch/arm/boot/dts/stm32mp157c.dtsi b/arch/arm/boot/dts/stm32mp157c.dtsi
    index 2afeee6..de5b1bf 100644
    --- a/arch/arm/boot/dts/stm32mp157c.dtsi
    +++ b/arch/arm/boot/dts/stm32mp157c.dtsi
    @@ -395,32 +395,44 @@
    usart2: serial@4000e000 {
    compatible = "st,stm32h7-uart";
    reg = <0x4000e000 0x400>;
    - interrupts = <GIC_SPI 38 IRQ_TYPE_LEVEL_HIGH>;
    + interrupt-names = "event", "wakeup";
    + interrupts-extended = <&intc GIC_SPI 38 IRQ_TYPE_LEVEL_HIGH>,
    + <&exti 27 1>;
    clocks = <&rcc USART2_K>;
    + wakeup-source;
    status = "disabled";
    };

    usart3: serial@4000f000 {
    compatible = "st,stm32h7-uart";
    reg = <0x4000f000 0x400>;
    - interrupts = <GIC_SPI 39 IRQ_TYPE_LEVEL_HIGH>;
    + interrupt-names = "event", "wakeup";
    + interrupts-extended = <&intc GIC_SPI 39 IRQ_TYPE_LEVEL_HIGH>,
    + <&exti 28 1>;
    clocks = <&rcc USART3_K>;
    + wakeup-source;
    status = "disabled";
    };

    uart4: serial@40010000 {
    compatible = "st,stm32h7-uart";
    reg = <0x40010000 0x400>;
    - interrupts = <GIC_SPI 52 IRQ_TYPE_LEVEL_HIGH>;
    + interrupt-names = "event", "wakeup";
    + interrupts-extended = <&intc GIC_SPI 52 IRQ_TYPE_LEVEL_HIGH>,
    + <&exti 30 1>;
    clocks = <&rcc UART4_K>;
    + wakeup-source;
    status = "disabled";
    };

    uart5: serial@40011000 {
    compatible = "st,stm32h7-uart";
    reg = <0x40011000 0x400>;
    - interrupts = <GIC_SPI 53 IRQ_TYPE_LEVEL_HIGH>;
    + interrupt-names = "event", "wakeup";
    + interrupts-extended = <&intc GIC_SPI 53 IRQ_TYPE_LEVEL_HIGH>,
    + <&exti 31 1>;
    clocks = <&rcc UART5_K>;
    + wakeup-source;
    status = "disabled";
    };

    @@ -512,16 +524,22 @@
    uart7: serial@40018000 {
    compatible = "st,stm32h7-uart";
    reg = <0x40018000 0x400>;
    - interrupts = <GIC_SPI 82 IRQ_TYPE_LEVEL_HIGH>;
    + interrupt-names = "event", "wakeup";
    + interrupts-extended = <&intc GIC_SPI 82 IRQ_TYPE_LEVEL_HIGH>,
    + <&exti 32 1>;
    clocks = <&rcc UART7_K>;
    + wakeup-source;
    status = "disabled";
    };

    uart8: serial@40019000 {
    compatible = "st,stm32h7-uart";
    reg = <0x40019000 0x400>;
    - interrupts = <GIC_SPI 83 IRQ_TYPE_LEVEL_HIGH>;
    + interrupt-names = "event", "wakeup";
    + interrupts-extended = <&intc GIC_SPI 83 IRQ_TYPE_LEVEL_HIGH>,
    + <&exti 33 1>;
    clocks = <&rcc UART8_K>;
    + wakeup-source;
    status = "disabled";
    };

    @@ -588,8 +606,11 @@
    usart6: serial@44003000 {
    compatible = "st,stm32h7-uart";
    reg = <0x44003000 0x400>;
    - interrupts = <GIC_SPI 71 IRQ_TYPE_LEVEL_HIGH>;
    + interrupt-names = "event", "wakeup";
    + interrupts-extended = <&intc GIC_SPI 71 IRQ_TYPE_LEVEL_HIGH>,
    + <&exti 29 1>;
    clocks = <&rcc USART6_K>;
    + wakeup-source;
    status = "disabled";
    };

    @@ -1201,8 +1222,11 @@
    usart1: serial@5c000000 {
    compatible = "st,stm32h7-uart";
    reg = <0x5c000000 0x400>;
    - interrupts = <GIC_SPI 37 IRQ_TYPE_LEVEL_HIGH>;
    + interrupt-names = "event", "wakeup";
    + interrupts-extended = <&intc GIC_SPI 37 IRQ_TYPE_LEVEL_HIGH>,
    + <&exti 26 1>;
    clocks = <&rcc USART1_K>;
    + wakeup-source;
    status = "disabled";
    };

    --
    1.9.1
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