[PATCH v3 5/5] ARM: at91/dt: define a dumb irq demultiplexer chip connected on irq1
From: Boris Brezillon <hidden>
Date: 2015-01-23 17:10:04
Also in:
linux-devicetree, lkml
Subsystem:
the rest · Maintainer:
Linus Torvalds
IRQ is multiplexing several peripheral IRQs, but there's no way to properly demultiplex those IRQs. Use a dumb irq demux chip to achieve this demultiplexing operation. Signed-off-by: Boris Brezillon <redacted> --- arch/arm/boot/dts/at91rm9200.dtsi | 20 +++++++++++++++++--- arch/arm/boot/dts/at91sam9260.dtsi | 26 +++++++++++++++++++++----- arch/arm/boot/dts/at91sam9261.dtsi | 26 +++++++++++++++++++++----- arch/arm/boot/dts/at91sam9263.dtsi | 29 +++++++++++++++++++++++------ arch/arm/boot/dts/at91sam9g45.dtsi | 29 +++++++++++++++++++++++------ arch/arm/boot/dts/at91sam9n12.dtsi | 25 +++++++++++++++++++++---- arch/arm/boot/dts/at91sam9rl.dtsi | 29 +++++++++++++++++++++++------ arch/arm/boot/dts/at91sam9x5.dtsi | 26 +++++++++++++++++++++----- 8 files changed, 170 insertions(+), 40 deletions(-)
diff --git a/arch/arm/boot/dts/at91rm9200.dtsi b/arch/arm/boot/dts/at91rm9200.dtsi
index 6c97d4a..9612d7c 100644
--- a/arch/arm/boot/dts/at91rm9200.dtsi
+++ b/arch/arm/boot/dts/at91rm9200.dtsi@@ -94,7 +94,7 @@ pmc: pmc at fffffc00 { compatible = "atmel,at91rm9200-pmc"; reg = <0xfffffc00 0x100>; - interrupts = <1 IRQ_TYPE_LEVEL_HIGH 7>; + interrupts-extended = <&dumb_irq1_demux 0>; interrupt-controller; #address-cells = <1>; #size-cells = <0>;
@@ -353,7 +353,7 @@ st: timer at fffffd00 { compatible = "atmel,at91rm9200-st"; reg = <0xfffffd00 0x100>; - interrupts = <1 IRQ_TYPE_LEVEL_HIGH 7>; + interrupts-extended = <&dumb_irq1_demux 1>; }; tcb0: timer at fffa0000 {
@@ -820,7 +820,7 @@ dbgu: serial at fffff200 { compatible = "atmel,at91rm9200-usart"; reg = <0xfffff200 0x200>; - interrupts = <1 IRQ_TYPE_LEVEL_HIGH 7>; + interrupts-extended = <&dumb_irq1_demux 2>; pinctrl-names = "default"; pinctrl-0 = <&pinctrl_dbgu>; clocks = <&mck>;
@@ -944,4 +944,18 @@ #size-cells = <0>; status = "disabled"; }; + + dumb_irq1_demux: dumb-irq-demux at 1 { + compatible = "virtual,dumb-irq-demux"; + interrupt-controller; + #interrupt-cells = <1>; + interrupts = <1 IRQ_TYPE_LEVEL_HIGH 7>; + /* + * Interrupt lines: + * 0: PMC + * 1: ST + * 2: DBGU + */ + irqs = <0x7>; + }; };
diff --git a/arch/arm/boot/dts/at91sam9260.dtsi b/arch/arm/boot/dts/at91sam9260.dtsi
index dd1313c..2cc31a3 100644
--- a/arch/arm/boot/dts/at91sam9260.dtsi
+++ b/arch/arm/boot/dts/at91sam9260.dtsi@@ -97,7 +97,7 @@ pmc: pmc at fffffc00 { compatible = "atmel,at91sam9260-pmc"; reg = <0xfffffc00 0x100>; - interrupts = <1 IRQ_TYPE_LEVEL_HIGH 7>; + interrupts-extended = <&dumb_irq1_demux 0>; interrupt-controller; #address-cells = <1>; #size-cells = <0>;
@@ -364,7 +364,7 @@ pit: timer at fffffd30 { compatible = "atmel,at91sam9260-pit"; reg = <0xfffffd30 0xf>; - interrupts = <1 IRQ_TYPE_LEVEL_HIGH 7>; + interrupts-extended = <&dumb_irq1_demux 1>; clocks = <&mck>; };
@@ -750,7 +750,7 @@ dbgu: serial at fffff200 { compatible = "atmel,at91sam9260-usart"; reg = <0xfffff200 0x200>; - interrupts = <1 IRQ_TYPE_LEVEL_HIGH 7>; + interrupts-extended = <&dumb_irq1_demux 2>; pinctrl-names = "default"; pinctrl-0 = <&pinctrl_dbgu>; clocks = <&mck>;
@@ -959,7 +959,7 @@ rtc at fffffd20 { compatible = "atmel,at91sam9260-rtt"; reg = <0xfffffd20 0x10>; - interrupts = <1 IRQ_TYPE_LEVEL_HIGH 7>; + interrupts-extended = <&dumb_irq1_demux 3>; clocks = <&clk32k>; status = "disabled"; };
@@ -967,7 +967,7 @@ watchdog at fffffd40 { compatible = "atmel,at91sam9260-wdt"; reg = <0xfffffd40 0x10>; - interrupts = <1 IRQ_TYPE_LEVEL_HIGH 7>; + interrupts-extended = <&dumb_irq1_demux 4>; atmel,watchdog-type = "hardware"; atmel,reset-type = "all"; atmel,dbg-halt;
@@ -1010,6 +1010,22 @@ }; }; + dumb_irq1_demux: dumb-irq-demux at 1 { + compatible = "virtual,dumb-irq-demux"; + interrupt-controller; + #interrupt-cells = <1>; + interrupts = <1 IRQ_TYPE_LEVEL_HIGH 7>; + /* + * Interrupt lines: + * 0: PMC + * 1: PIT + * 2: DBGU + * 3: RTT + * 4: WATCHDOG + */ + irqs = <0x1f>; + }; + i2c at 0 { compatible = "i2c-gpio"; gpios = <&pioA 23 GPIO_ACTIVE_HIGH /* sda */
diff --git a/arch/arm/boot/dts/at91sam9261.dtsi b/arch/arm/boot/dts/at91sam9261.dtsi
index cdb9ed6..b1d96bd 100644
--- a/arch/arm/boot/dts/at91sam9261.dtsi
+++ b/arch/arm/boot/dts/at91sam9261.dtsi@@ -272,7 +272,7 @@ dbgu: serial@fffff200 { compatible = "atmel,at91sam9260-usart"; reg = <0xfffff200 0x200>; - interrupts = <1 IRQ_TYPE_LEVEL_HIGH 7>; + interrupts-extended = <&dumb_irq1_demux 2>; pinctrl-names = "default"; pinctrl-0 = <&pinctrl_dbgu>; clocks = <&mck>;
@@ -564,7 +564,7 @@ pmc: pmc at fffffc00 { compatible = "atmel,at91rm9200-pmc"; reg = <0xfffffc00 0x100>; - interrupts = <1 IRQ_TYPE_LEVEL_HIGH 7>; + interrupts-extended = <&dumb_irq1_demux 0>; interrupt-controller; #address-cells = <1>; #size-cells = <0>;
@@ -824,14 +824,14 @@ pit: timer at fffffd30 { compatible = "atmel,at91sam9260-pit"; reg = <0xfffffd30 0xf>; - interrupts = <1 IRQ_TYPE_LEVEL_HIGH 7>; + interrupts-extended = <&dumb_irq1_demux 1>; clocks = <&mck>; }; rtc at fffffd20 { compatible = "atmel,at91sam9260-rtt"; reg = <0xfffffd20 0x10>; - interrupts = <1 IRQ_TYPE_LEVEL_HIGH 7>; + interrupts-extended = <&dumb_irq1_demux 3>; clocks = <&slow_xtal>; status = "disabled"; };
@@ -839,7 +839,7 @@ watchdog at fffffd40 { compatible = "atmel,at91sam9260-wdt"; reg = <0xfffffd40 0x10>; - interrupts = <1 IRQ_TYPE_LEVEL_HIGH 7>; + interrupts-extended = <&dumb_irq1_demux 4>; status = "disabled"; };
@@ -864,4 +864,20 @@ #size-cells = <0>; status = "disabled"; }; + + dumb_irq1_demux: dumb-irq-demux at 1 { + compatible = "virtual,dumb-irq-demux"; + interrupt-controller; + #interrupt-cells = <1>; + interrupts = <1 IRQ_TYPE_LEVEL_HIGH 7>; + /* + * Interrupt lines: + * 0: PMC + * 1: ST + * 2: DBGU + * 3: RTT + * 4: WATCHDOG + */ + irqs = <0x1f>; + }; };
diff --git a/arch/arm/boot/dts/at91sam9263.dtsi b/arch/arm/boot/dts/at91sam9263.dtsi
index e8c6c60..7810eb2 100644
--- a/arch/arm/boot/dts/at91sam9263.dtsi
+++ b/arch/arm/boot/dts/at91sam9263.dtsi@@ -85,7 +85,7 @@ pmc: pmc at fffffc00 { compatible = "atmel,at91rm9200-pmc"; reg = <0xfffffc00 0x100>; - interrupts = <1 IRQ_TYPE_LEVEL_HIGH 7>; + interrupts-extended = <&dumb_irq1_demux 0>; interrupt-controller; #address-cells = <1>; #size-cells = <0>;
@@ -359,7 +359,7 @@ pit: timer at fffffd30 { compatible = "atmel,at91sam9260-pit"; reg = <0xfffffd30 0xf>; - interrupts = <1 IRQ_TYPE_LEVEL_HIGH 7>; + interrupts-extended = <&dumb_irq1_demux 1>; clocks = <&mck>; };
@@ -744,7 +744,7 @@ dbgu: serial at ffffee00 { compatible = "atmel,at91sam9260-usart"; reg = <0xffffee00 0x200>; - interrupts = <1 IRQ_TYPE_LEVEL_HIGH 7>; + interrupts-extended = <&dumb_irq1_demux 2>; pinctrl-names = "default"; pinctrl-0 = <&pinctrl_dbgu>; clocks = <&mck>;
@@ -870,7 +870,7 @@ watchdog at fffffd40 { compatible = "atmel,at91sam9260-wdt"; reg = <0xfffffd40 0x10>; - interrupts = <1 IRQ_TYPE_LEVEL_HIGH 7>; + interrupts-extended = <&dumb_irq1_demux 4>; atmel,watchdog-type = "hardware"; atmel,reset-type = "all"; atmel,dbg-halt;
@@ -927,7 +927,7 @@ rtc at fffffd20 { compatible = "atmel,at91sam9260-rtt"; reg = <0xfffffd20 0x10>; - interrupts = <1 IRQ_TYPE_LEVEL_HIGH 7>; + interrupts-extended = <&dumb_irq1_demux 3>; clocks = <&slow_xtal>; status = "disabled"; };
@@ -935,7 +935,7 @@ rtc at fffffd50 { compatible = "atmel,at91sam9260-rtt"; reg = <0xfffffd50 0x10>; - interrupts = <1 IRQ_TYPE_LEVEL_HIGH 7>; + interrupts-extended = <&dumb_irq1_demux 5>; clocks = <&slow_xtal>; status = "disabled"; };
@@ -998,4 +998,21 @@ #size-cells = <0>; status = "disabled"; }; + + dumb_irq1_demux: dumb-irq-demux at 1 { + compatible = "virtual,dumb-irq-demux"; + interrupt-controller; + #interrupt-cells = <1>; + interrupts = <1 IRQ_TYPE_LEVEL_HIGH 7>; + /* + * Interrupt lines: + * 0: PMC + * 1: PIT + * 2: DBGU + * 3: RTT1 + * 4: WATCHDOG + * 5: RTT2 + */ + irqs = <0x3f>; + }; };
diff --git a/arch/arm/boot/dts/at91sam9g45.dtsi b/arch/arm/boot/dts/at91sam9g45.dtsi
index 2a8da8a..97f0ca6 100644
--- a/arch/arm/boot/dts/at91sam9g45.dtsi
+++ b/arch/arm/boot/dts/at91sam9g45.dtsi@@ -111,7 +111,7 @@ pmc: pmc at fffffc00 { compatible = "atmel,at91sam9g45-pmc"; reg = <0xfffffc00 0x100>; - interrupts = <1 IRQ_TYPE_LEVEL_HIGH 7>; + interrupts-extended = <&dumb_irq1_demux 0>; interrupt-controller; #address-cells = <1>; #size-cells = <0>;
@@ -387,7 +387,7 @@ pit: timer at fffffd30 { compatible = "atmel,at91sam9260-pit"; reg = <0xfffffd30 0xf>; - interrupts = <1 IRQ_TYPE_LEVEL_HIGH 7>; + interrupts-extended = <&dumb_irq1_demux 1>; clocks = <&mck>; };
@@ -890,7 +890,7 @@ dbgu: serial at ffffee00 { compatible = "atmel,at91sam9260-usart"; reg = <0xffffee00 0x200>; - interrupts = <1 IRQ_TYPE_LEVEL_HIGH 7>; + interrupts-extended = <&dumb_irq1_demux 2>; pinctrl-names = "default"; pinctrl-0 = <&pinctrl_dbgu>; clocks = <&mck>;
@@ -1107,7 +1107,7 @@ watchdog at fffffd40 { compatible = "atmel,at91sam9260-wdt"; reg = <0xfffffd40 0x10>; - interrupts = <1 IRQ_TYPE_LEVEL_HIGH 7>; + interrupts-extended = <&dumb_irq1_demux 4>; atmel,watchdog-type = "hardware"; atmel,reset-type = "all"; atmel,dbg-halt;
@@ -1234,7 +1234,7 @@ rtc at fffffd20 { compatible = "atmel,at91sam9260-rtt"; reg = <0xfffffd20 0x10>; - interrupts = <1 IRQ_TYPE_LEVEL_HIGH 7>; + interrupts-extended = <&dumb_irq1_demux 3>; clocks = <&clk32k>; status = "disabled"; };
@@ -1242,7 +1242,7 @@ rtc at fffffdb0 { compatible = "atmel,at91rm9200-rtc"; reg = <0xfffffdb0 0x30>; - interrupts = <1 IRQ_TYPE_LEVEL_HIGH 7>; + interrupts-extended = <&dumb_irq1_demux 5>; status = "disabled"; };
@@ -1316,4 +1316,21 @@ #size-cells = <0>; status = "disabled"; }; + + dumb_irq1_demux: dumb-irq-demux at 1 { + compatible = "virtual,dumb-irq-demux"; + interrupt-controller; + #interrupt-cells = <1>; + interrupts = <1 IRQ_TYPE_LEVEL_HIGH 7>; + /* + * Interrupt lines: + * 0: PMC + * 1: PIT + * 2: DBGU + * 3: RTT + * 4: WATCHDOG + * 5: RTC + */ + irqs = <0x3f>; + }; };
diff --git a/arch/arm/boot/dts/at91sam9n12.dtsi b/arch/arm/boot/dts/at91sam9n12.dtsi
index 68eb9ad..e2b9fe5 100644
--- a/arch/arm/boot/dts/at91sam9n12.dtsi
+++ b/arch/arm/boot/dts/at91sam9n12.dtsi@@ -94,7 +94,7 @@ pmc: pmc at fffffc00 { compatible = "atmel,at91sam9n12-pmc"; reg = <0xfffffc00 0x200>; - interrupts = <1 IRQ_TYPE_LEVEL_HIGH 7>; + interrupts-extended = <&dumb_irq1_demux 0>; interrupt-controller; #address-cells = <1>; #size-cells = <0>;
@@ -376,7 +376,7 @@ pit: timer at fffffe30 { compatible = "atmel,at91sam9260-pit"; reg = <0xfffffe30 0xf>; - interrupts = <1 IRQ_TYPE_LEVEL_HIGH 7>; + interrupts-extended = <&dumb_irq1_demux 1>; clocks = <&mck>; };
@@ -754,7 +754,7 @@ dbgu: serial at fffff200 { compatible = "atmel,at91sam9260-usart"; reg = <0xfffff200 0x200>; - interrupts = <1 IRQ_TYPE_LEVEL_HIGH 7>; + interrupts-extended = <&dumb_irq1_demux 2>; pinctrl-names = "default"; pinctrl-0 = <&pinctrl_dbgu>; clocks = <&mck>;
@@ -885,7 +885,8 @@ watchdog at fffffe40 { compatible = "atmel,at91sam9260-wdt"; reg = <0xfffffe40 0x10>; - interrupts = <1 IRQ_TYPE_LEVEL_HIGH 7>; + interrupts = <1 IRQ_TYPE_LEVEL_HIGH 4>; + interrupts-extended = <&dumb_irq1_demux 4>; atmel,watchdog-type = "hardware"; atmel,reset-type = "all"; atmel,dbg-halt;
@@ -948,4 +949,20 @@ #size-cells = <0>; status = "disabled"; }; + + dumb_irq1_demux: dumb-irq-demux at 1 { + compatible = "virtual,dumb-irq-demux"; + interrupt-controller; + #interrupt-cells = <1>; + interrupts = <1 IRQ_TYPE_LEVEL_HIGH 7>; + /* + * Interrupt lines: + * 0: PMC + * 1: PIT + * 2: DBGU + * 3: RTC + * 4: WATCHDOG + */ + irqs = <0x1f>; + }; };
diff --git a/arch/arm/boot/dts/at91sam9rl.dtsi b/arch/arm/boot/dts/at91sam9rl.dtsi
index 7242437..4838e11 100644
--- a/arch/arm/boot/dts/at91sam9rl.dtsi
+++ b/arch/arm/boot/dts/at91sam9rl.dtsi@@ -374,7 +374,7 @@ dbgu: serial at fffff200 { compatible = "atmel,at91sam9260-usart"; reg = <0xfffff200 0x200>; - interrupts = <1 IRQ_TYPE_LEVEL_HIGH 7>; + interrupts-extended = <&dumb_irq1_demux 2>; pinctrl-names = "default"; pinctrl-0 = <&pinctrl_dbgu>; clocks = <&mck>;
@@ -811,7 +811,7 @@ pmc: pmc at fffffc00 { compatible = "atmel,at91sam9g45-pmc"; reg = <0xfffffc00 0x100>; - interrupts = <1 IRQ_TYPE_LEVEL_HIGH 7>; + interrupts-extended = <&dumb_irq1_demux 0>; interrupt-controller; #address-cells = <1>; #size-cells = <0>;
@@ -1023,14 +1023,14 @@ pit: timer at fffffd30 { compatible = "atmel,at91sam9260-pit"; reg = <0xfffffd30 0xf>; - interrupts = <1 IRQ_TYPE_LEVEL_HIGH 7>; + interrupts-extended = <&dumb_irq1_demux 1>; clocks = <&mck>; }; watchdog at fffffd40 { compatible = "atmel,at91sam9260-wdt"; reg = <0xfffffd40 0x10>; - interrupts = <1 IRQ_TYPE_LEVEL_HIGH 7>; + interrupts-extended = <&dumb_irq1_demux 4>; status = "disabled"; };
@@ -1063,14 +1063,14 @@ rtc at fffffeb0 { compatible = "atmel,at91rm9200-rtc"; reg = <0xfffffeb0 0x40>; - interrupts = <1 IRQ_TYPE_LEVEL_HIGH 7>; + interrupts-extended = <&dumb_irq1_demux 5>; status = "disabled"; }; rtc at fffffd20 { compatible = "atmel,at91sam9260-rtt"; reg = <0xfffffd20 0x10>; - interrupts = <1 IRQ_TYPE_LEVEL_HIGH 7>; + interrupts-extended = <&dumb_irq1_demux 3>; clocks = <&clk32k>; status = "disabled"; };
@@ -1110,4 +1110,21 @@ pinctrl-0 = <&pinctrl_i2c_gpio1>; status = "disabled"; }; + + dumb_irq1_demux: dumb-irq-demux at 1 { + compatible = "virtual,dumb-irq-demux"; + interrupt-controller; + #interrupt-cells = <1>; + interrupts = <1 IRQ_TYPE_LEVEL_HIGH 7>; + /* + * Interrupt lines: + * 0: PMC + * 1: PIT + * 2: DBGU + * 3: RTT + * 4: WATCHDOG + * 5: RTC + */ + irqs = <0x3f>; + }; };
diff --git a/arch/arm/boot/dts/at91sam9x5.dtsi b/arch/arm/boot/dts/at91sam9x5.dtsi
index bbb3ba6..cfbf458 100644
--- a/arch/arm/boot/dts/at91sam9x5.dtsi
+++ b/arch/arm/boot/dts/at91sam9x5.dtsi@@ -102,7 +102,7 @@ pmc: pmc at fffffc00 { compatible = "atmel,at91sam9x5-pmc"; reg = <0xfffffc00 0x100>; - interrupts = <1 IRQ_TYPE_LEVEL_HIGH 7>; + interrupts-extended = <&dumb_irq1_demux 0>; interrupt-controller; #address-cells = <1>; #size-cells = <0>;
@@ -381,7 +381,7 @@ pit: timer at fffffe30 { compatible = "atmel,at91sam9260-pit"; reg = <0xfffffe30 0xf>; - interrupts = <1 IRQ_TYPE_LEVEL_HIGH 7>; + interrupts-extended = <&dumb_irq1_demux 1>; clocks = <&mck>; };
@@ -857,7 +857,7 @@ dbgu: serial at fffff200 { compatible = "atmel,at91sam9260-usart"; reg = <0xfffff200 0x200>; - interrupts = <1 IRQ_TYPE_LEVEL_HIGH 7>; + interrupts-extended = <&dumb_irq1_demux 2>; pinctrl-names = "default"; pinctrl-0 = <&pinctrl_dbgu>; dmas = <&dma1 1 AT91_DMA_CFG_PER_ID(8)>,
@@ -1121,7 +1121,7 @@ watchdog at fffffe40 { compatible = "atmel,at91sam9260-wdt"; reg = <0xfffffe40 0x10>; - interrupts = <1 IRQ_TYPE_LEVEL_HIGH 7>; + interrupts-extended = <&dumb_irq1_demux 4>; atmel,watchdog-type = "hardware"; atmel,reset-type = "all"; atmel,dbg-halt;
@@ -1132,7 +1132,7 @@ rtc at fffffeb0 { compatible = "atmel,at91sam9x5-rtc"; reg = <0xfffffeb0 0x40>; - interrupts = <1 IRQ_TYPE_LEVEL_HIGH 7>; + interrupts-extended = <&dumb_irq1_demux 3>; status = "disabled"; };
@@ -1231,4 +1231,20 @@ pinctrl-0 = <&pinctrl_i2c_gpio2>; status = "disabled"; }; + + dumb_irq1_demux: dumb-irq-demux at 1 { + compatible = "virtual,dumb-irq-demux"; + interrupt-controller; + #interrupt-cells = <1>; + interrupts = <1 IRQ_TYPE_LEVEL_HIGH 7>; + /* + * Interrupt lines: + * 0: PMC + * 1: PIT + * 2: DBGU + * 3: RTC + * 4: WATCHDOG + */ + irqs = <0x1f>; + }; };
--
1.9.1