* Passing GPIO irq edge/level flags from devicetree to driver, how?
@ 2012-07-06 7:54 Sascha Hauer
2012-07-06 8:16 ` Shawn Guo
2012-07-06 12:08 ` [PATCH] ARM: dts: imx: update #interrupt-cells for gpio nodes Shawn Guo
0 siblings, 2 replies; 6+ messages in thread
From: Sascha Hauer @ 2012-07-06 7:54 UTC (permalink / raw)
To: linux-arm-kernel
Hi All,
Several gpio binding documents like the one for mxs have the following
in them:
- #interrupt-cells : Should be 2. The first cell is the GPIO number.
The second cell bits[3:0] is used to specify trigger type and level flags:
1 = low-to-high edge triggered.
2 = high-to-low edge triggered.
4 = active high level-sensitive.
8 = active low level-sensitive.
Does anybody know where this information is evaluated and how this is
passed to the driver?
I am working on i.MX (who would have guessed that) and I am trying to
connect a I2C device with an interrupt source connected to the gpio
interrupt controller. It works fine, only the irq level/edge flags
get lost somewhere.
What I have is:
maxtouch at 4b {
compatible = "mXT224";
reg = <0x4b>;
interrupt-parent = <&gpio7>;
interrupts = <13 2>;
};
Any idea how the maxtouch driver can use the 'high-to-low edge
triggered' information?
BTW. the i.MX GPIO binding document does not claim to support the flags,
but I assume it's just missing in the document, but there maybe also
something missing in the driver to support this.
Sascha
--
Pengutronix e.K. | |
Industrial Linux Solutions | http://www.pengutronix.de/ |
Peiner Str. 6-8, 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 |
Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 |
^ permalink raw reply [flat|nested] 6+ messages in thread* Passing GPIO irq edge/level flags from devicetree to driver, how? 2012-07-06 7:54 Passing GPIO irq edge/level flags from devicetree to driver, how? Sascha Hauer @ 2012-07-06 8:16 ` Shawn Guo 2012-07-06 10:36 ` Sascha Hauer 2012-07-06 12:08 ` [PATCH] ARM: dts: imx: update #interrupt-cells for gpio nodes Shawn Guo 1 sibling, 1 reply; 6+ messages in thread From: Shawn Guo @ 2012-07-06 8:16 UTC (permalink / raw) To: linux-arm-kernel Hi Sascha, Try to change the value of #interrupt-cells under gpio node from 1 to 2. I forgot updating imx on this. Regards, Shawn On Fri, Jul 06, 2012 at 09:54:34AM +0200, Sascha Hauer wrote: > Hi All, > > Several gpio binding documents like the one for mxs have the following > in them: > > - #interrupt-cells : Should be 2. The first cell is the GPIO number. > The second cell bits[3:0] is used to specify trigger type and level flags: > 1 = low-to-high edge triggered. > 2 = high-to-low edge triggered. > 4 = active high level-sensitive. > 8 = active low level-sensitive. > > Does anybody know where this information is evaluated and how this is > passed to the driver? > > I am working on i.MX (who would have guessed that) and I am trying to > connect a I2C device with an interrupt source connected to the gpio > interrupt controller. It works fine, only the irq level/edge flags > get lost somewhere. > > What I have is: > > maxtouch at 4b { > compatible = "mXT224"; > reg = <0x4b>; > interrupt-parent = <&gpio7>; > interrupts = <13 2>; > }; > > Any idea how the maxtouch driver can use the 'high-to-low edge > triggered' information? > > BTW. the i.MX GPIO binding document does not claim to support the flags, > but I assume it's just missing in the document, but there maybe also > something missing in the driver to support this. > > Sascha > > -- > Pengutronix e.K. | | > Industrial Linux Solutions | http://www.pengutronix.de/ | > Peiner Str. 6-8, 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 | > Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 | ^ permalink raw reply [flat|nested] 6+ messages in thread
* Passing GPIO irq edge/level flags from devicetree to driver, how? 2012-07-06 8:16 ` Shawn Guo @ 2012-07-06 10:36 ` Sascha Hauer 2012-07-06 11:43 ` Shawn Guo 0 siblings, 1 reply; 6+ messages in thread From: Sascha Hauer @ 2012-07-06 10:36 UTC (permalink / raw) To: linux-arm-kernel On Fri, Jul 06, 2012 at 04:16:53PM +0800, Shawn Guo wrote: > Hi Sascha, > > Try to change the value of #interrupt-cells under gpio node from 1 to 2. > > I forgot updating imx on this. Ok, that does the trick. Should I create a patch or are you already in the middle of doing so? Sascha -- Pengutronix e.K. | | Industrial Linux Solutions | http://www.pengutronix.de/ | Peiner Str. 6-8, 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 | Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 | ^ permalink raw reply [flat|nested] 6+ messages in thread
* Passing GPIO irq edge/level flags from devicetree to driver, how? 2012-07-06 10:36 ` Sascha Hauer @ 2012-07-06 11:43 ` Shawn Guo 0 siblings, 0 replies; 6+ messages in thread From: Shawn Guo @ 2012-07-06 11:43 UTC (permalink / raw) To: linux-arm-kernel On 6 July 2012 18:36, Sascha Hauer <s.hauer@pengutronix.de> wrote: > Ok, that does the trick. Should I create a patch or are you already in > the middle of doing so? > Yes, I'm cooking a patch for that. Regards, Shawn ^ permalink raw reply [flat|nested] 6+ messages in thread
* [PATCH] ARM: dts: imx: update #interrupt-cells for gpio nodes 2012-07-06 7:54 Passing GPIO irq edge/level flags from devicetree to driver, how? Sascha Hauer 2012-07-06 8:16 ` Shawn Guo @ 2012-07-06 12:08 ` Shawn Guo 2012-07-06 12:38 ` Sascha Hauer 1 sibling, 1 reply; 6+ messages in thread From: Shawn Guo @ 2012-07-06 12:08 UTC (permalink / raw) To: linux-arm-kernel Change the value of #interrupt-cells of gpio nodes from 1 to 2, so that the gpio irq type can be specified in device tree. Also update binding document to make it clear. Reported-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Shawn Guo <shawn.guo@linaro.org> --- .../devicetree/bindings/gpio/fsl-imx-gpio.txt | 9 +++++++++ arch/arm/boot/dts/imx27.dtsi | 12 ++++++------ arch/arm/boot/dts/imx51.dtsi | 8 ++++---- arch/arm/boot/dts/imx53.dtsi | 14 +++++++------- arch/arm/boot/dts/imx6q.dtsi | 14 +++++++------- 5 files changed, 33 insertions(+), 24 deletions(-) diff --git a/Documentation/devicetree/bindings/gpio/fsl-imx-gpio.txt b/Documentation/devicetree/bindings/gpio/fsl-imx-gpio.txt index 5f360e7..4f39297 100644 --- a/Documentation/devicetree/bindings/gpio/fsl-imx-gpio.txt +++ b/Documentation/devicetree/bindings/gpio/fsl-imx-gpio.txt @@ -11,6 +11,13 @@ Required properties: the second cell is used to specify the gpio polarity: 0 = active high 1 = active low +- interrupt-controller: Marks the device node as an interrupt controller. +- #interrupt-cells : Should be 2. The first cell is the GPIO number. + The second cell bits[3:0] is used to specify trigger type and level flags: + 1 = low-to-high edge triggered. + 2 = high-to-low edge triggered. + 4 = active high level-sensitive. + 8 = active low level-sensitive. Example: @@ -20,4 +27,6 @@ gpio0: gpio at 73f84000 { interrupts = <50 51>; gpio-controller; #gpio-cells = <2>; + interrupt-controller; + #interrupt-cells = <2>; }; diff --git a/arch/arm/boot/dts/imx27.dtsi b/arch/arm/boot/dts/imx27.dtsi index 386c769..00bae3a 100644 --- a/arch/arm/boot/dts/imx27.dtsi +++ b/arch/arm/boot/dts/imx27.dtsi @@ -121,7 +121,7 @@ gpio-controller; #gpio-cells = <2>; interrupt-controller; - #interrupt-cells = <1>; + #interrupt-cells = <2>; }; gpio2: gpio at 10015100 { @@ -131,7 +131,7 @@ gpio-controller; #gpio-cells = <2>; interrupt-controller; - #interrupt-cells = <1>; + #interrupt-cells = <2>; }; gpio3: gpio at 10015200 { @@ -141,7 +141,7 @@ gpio-controller; #gpio-cells = <2>; interrupt-controller; - #interrupt-cells = <1>; + #interrupt-cells = <2>; }; gpio4: gpio at 10015300 { @@ -151,7 +151,7 @@ gpio-controller; #gpio-cells = <2>; interrupt-controller; - #interrupt-cells = <1>; + #interrupt-cells = <2>; }; gpio5: gpio at 10015400 { @@ -161,7 +161,7 @@ gpio-controller; #gpio-cells = <2>; interrupt-controller; - #interrupt-cells = <1>; + #interrupt-cells = <2>; }; gpio6: gpio at 10015500 { @@ -171,7 +171,7 @@ gpio-controller; #gpio-cells = <2>; interrupt-controller; - #interrupt-cells = <1>; + #interrupt-cells = <2>; }; cspi3: cspi at 10017000 { diff --git a/arch/arm/boot/dts/imx51.dtsi b/arch/arm/boot/dts/imx51.dtsi index bfa65ab..922adef 100644 --- a/arch/arm/boot/dts/imx51.dtsi +++ b/arch/arm/boot/dts/imx51.dtsi @@ -133,7 +133,7 @@ gpio-controller; #gpio-cells = <2>; interrupt-controller; - #interrupt-cells = <1>; + #interrupt-cells = <2>; }; gpio2: gpio at 73f88000 { @@ -143,7 +143,7 @@ gpio-controller; #gpio-cells = <2>; interrupt-controller; - #interrupt-cells = <1>; + #interrupt-cells = <2>; }; gpio3: gpio at 73f8c000 { @@ -153,7 +153,7 @@ gpio-controller; #gpio-cells = <2>; interrupt-controller; - #interrupt-cells = <1>; + #interrupt-cells = <2>; }; gpio4: gpio at 73f90000 { @@ -163,7 +163,7 @@ gpio-controller; #gpio-cells = <2>; interrupt-controller; - #interrupt-cells = <1>; + #interrupt-cells = <2>; }; wdog at 73f98000 { /* WDOG1 */ diff --git a/arch/arm/boot/dts/imx53.dtsi b/arch/arm/boot/dts/imx53.dtsi index e3e8694..4e735ed 100644 --- a/arch/arm/boot/dts/imx53.dtsi +++ b/arch/arm/boot/dts/imx53.dtsi @@ -135,7 +135,7 @@ gpio-controller; #gpio-cells = <2>; interrupt-controller; - #interrupt-cells = <1>; + #interrupt-cells = <2>; }; gpio2: gpio at 53f88000 { @@ -145,7 +145,7 @@ gpio-controller; #gpio-cells = <2>; interrupt-controller; - #interrupt-cells = <1>; + #interrupt-cells = <2>; }; gpio3: gpio at 53f8c000 { @@ -155,7 +155,7 @@ gpio-controller; #gpio-cells = <2>; interrupt-controller; - #interrupt-cells = <1>; + #interrupt-cells = <2>; }; gpio4: gpio at 53f90000 { @@ -165,7 +165,7 @@ gpio-controller; #gpio-cells = <2>; interrupt-controller; - #interrupt-cells = <1>; + #interrupt-cells = <2>; }; wdog at 53f98000 { /* WDOG1 */ @@ -203,7 +203,7 @@ gpio-controller; #gpio-cells = <2>; interrupt-controller; - #interrupt-cells = <1>; + #interrupt-cells = <2>; }; gpio6: gpio at 53fe0000 { @@ -213,7 +213,7 @@ gpio-controller; #gpio-cells = <2>; interrupt-controller; - #interrupt-cells = <1>; + #interrupt-cells = <2>; }; gpio7: gpio at 53fe4000 { @@ -223,7 +223,7 @@ gpio-controller; #gpio-cells = <2>; interrupt-controller; - #interrupt-cells = <1>; + #interrupt-cells = <2>; }; i2c at 53fec000 { /* I2C3 */ diff --git a/arch/arm/boot/dts/imx6q.dtsi b/arch/arm/boot/dts/imx6q.dtsi index 16a3884..bf88fb7 100644 --- a/arch/arm/boot/dts/imx6q.dtsi +++ b/arch/arm/boot/dts/imx6q.dtsi @@ -283,7 +283,7 @@ gpio-controller; #gpio-cells = <2>; interrupt-controller; - #interrupt-cells = <1>; + #interrupt-cells = <2>; }; gpio2: gpio at 020a0000 { @@ -293,7 +293,7 @@ gpio-controller; #gpio-cells = <2>; interrupt-controller; - #interrupt-cells = <1>; + #interrupt-cells = <2>; }; gpio3: gpio at 020a4000 { @@ -303,7 +303,7 @@ gpio-controller; #gpio-cells = <2>; interrupt-controller; - #interrupt-cells = <1>; + #interrupt-cells = <2>; }; gpio4: gpio at 020a8000 { @@ -313,7 +313,7 @@ gpio-controller; #gpio-cells = <2>; interrupt-controller; - #interrupt-cells = <1>; + #interrupt-cells = <2>; }; gpio5: gpio at 020ac000 { @@ -323,7 +323,7 @@ gpio-controller; #gpio-cells = <2>; interrupt-controller; - #interrupt-cells = <1>; + #interrupt-cells = <2>; }; gpio6: gpio at 020b0000 { @@ -333,7 +333,7 @@ gpio-controller; #gpio-cells = <2>; interrupt-controller; - #interrupt-cells = <1>; + #interrupt-cells = <2>; }; gpio7: gpio at 020b4000 { @@ -343,7 +343,7 @@ gpio-controller; #gpio-cells = <2>; interrupt-controller; - #interrupt-cells = <1>; + #interrupt-cells = <2>; }; kpp at 020b8000 { -- 1.7.5.4 ^ permalink raw reply related [flat|nested] 6+ messages in thread
* [PATCH] ARM: dts: imx: update #interrupt-cells for gpio nodes 2012-07-06 12:08 ` [PATCH] ARM: dts: imx: update #interrupt-cells for gpio nodes Shawn Guo @ 2012-07-06 12:38 ` Sascha Hauer 0 siblings, 0 replies; 6+ messages in thread From: Sascha Hauer @ 2012-07-06 12:38 UTC (permalink / raw) To: linux-arm-kernel On Fri, Jul 06, 2012 at 08:08:13PM +0800, Shawn Guo wrote: > Change the value of #interrupt-cells of gpio nodes from 1 to 2, so that > the gpio irq type can be specified in device tree. Also update binding > document to make it clear. > > Reported-by: Sascha Hauer <s.hauer@pengutronix.de> > Signed-off-by: Shawn Guo <shawn.guo@linaro.org> Thanks Shawn Acked-by: Sascha Hauer <s.hauer@pengutronix.de> Sascha > --- > .../devicetree/bindings/gpio/fsl-imx-gpio.txt | 9 +++++++++ > arch/arm/boot/dts/imx27.dtsi | 12 ++++++------ > arch/arm/boot/dts/imx51.dtsi | 8 ++++---- > arch/arm/boot/dts/imx53.dtsi | 14 +++++++------- > arch/arm/boot/dts/imx6q.dtsi | 14 +++++++------- > 5 files changed, 33 insertions(+), 24 deletions(-) > > diff --git a/Documentation/devicetree/bindings/gpio/fsl-imx-gpio.txt b/Documentation/devicetree/bindings/gpio/fsl-imx-gpio.txt > index 5f360e7..4f39297 100644 > --- a/Documentation/devicetree/bindings/gpio/fsl-imx-gpio.txt > +++ b/Documentation/devicetree/bindings/gpio/fsl-imx-gpio.txt > @@ -11,6 +11,13 @@ Required properties: > the second cell is used to specify the gpio polarity: > 0 = active high > 1 = active low > +- interrupt-controller: Marks the device node as an interrupt controller. > +- #interrupt-cells : Should be 2. The first cell is the GPIO number. > + The second cell bits[3:0] is used to specify trigger type and level flags: > + 1 = low-to-high edge triggered. > + 2 = high-to-low edge triggered. > + 4 = active high level-sensitive. > + 8 = active low level-sensitive. > > Example: > > @@ -20,4 +27,6 @@ gpio0: gpio at 73f84000 { > interrupts = <50 51>; > gpio-controller; > #gpio-cells = <2>; > + interrupt-controller; > + #interrupt-cells = <2>; > }; > diff --git a/arch/arm/boot/dts/imx27.dtsi b/arch/arm/boot/dts/imx27.dtsi > index 386c769..00bae3a 100644 > --- a/arch/arm/boot/dts/imx27.dtsi > +++ b/arch/arm/boot/dts/imx27.dtsi > @@ -121,7 +121,7 @@ > gpio-controller; > #gpio-cells = <2>; > interrupt-controller; > - #interrupt-cells = <1>; > + #interrupt-cells = <2>; > }; > > gpio2: gpio at 10015100 { > @@ -131,7 +131,7 @@ > gpio-controller; > #gpio-cells = <2>; > interrupt-controller; > - #interrupt-cells = <1>; > + #interrupt-cells = <2>; > }; > > gpio3: gpio at 10015200 { > @@ -141,7 +141,7 @@ > gpio-controller; > #gpio-cells = <2>; > interrupt-controller; > - #interrupt-cells = <1>; > + #interrupt-cells = <2>; > }; > > gpio4: gpio at 10015300 { > @@ -151,7 +151,7 @@ > gpio-controller; > #gpio-cells = <2>; > interrupt-controller; > - #interrupt-cells = <1>; > + #interrupt-cells = <2>; > }; > > gpio5: gpio at 10015400 { > @@ -161,7 +161,7 @@ > gpio-controller; > #gpio-cells = <2>; > interrupt-controller; > - #interrupt-cells = <1>; > + #interrupt-cells = <2>; > }; > > gpio6: gpio at 10015500 { > @@ -171,7 +171,7 @@ > gpio-controller; > #gpio-cells = <2>; > interrupt-controller; > - #interrupt-cells = <1>; > + #interrupt-cells = <2>; > }; > > cspi3: cspi at 10017000 { > diff --git a/arch/arm/boot/dts/imx51.dtsi b/arch/arm/boot/dts/imx51.dtsi > index bfa65ab..922adef 100644 > --- a/arch/arm/boot/dts/imx51.dtsi > +++ b/arch/arm/boot/dts/imx51.dtsi > @@ -133,7 +133,7 @@ > gpio-controller; > #gpio-cells = <2>; > interrupt-controller; > - #interrupt-cells = <1>; > + #interrupt-cells = <2>; > }; > > gpio2: gpio at 73f88000 { > @@ -143,7 +143,7 @@ > gpio-controller; > #gpio-cells = <2>; > interrupt-controller; > - #interrupt-cells = <1>; > + #interrupt-cells = <2>; > }; > > gpio3: gpio at 73f8c000 { > @@ -153,7 +153,7 @@ > gpio-controller; > #gpio-cells = <2>; > interrupt-controller; > - #interrupt-cells = <1>; > + #interrupt-cells = <2>; > }; > > gpio4: gpio at 73f90000 { > @@ -163,7 +163,7 @@ > gpio-controller; > #gpio-cells = <2>; > interrupt-controller; > - #interrupt-cells = <1>; > + #interrupt-cells = <2>; > }; > > wdog at 73f98000 { /* WDOG1 */ > diff --git a/arch/arm/boot/dts/imx53.dtsi b/arch/arm/boot/dts/imx53.dtsi > index e3e8694..4e735ed 100644 > --- a/arch/arm/boot/dts/imx53.dtsi > +++ b/arch/arm/boot/dts/imx53.dtsi > @@ -135,7 +135,7 @@ > gpio-controller; > #gpio-cells = <2>; > interrupt-controller; > - #interrupt-cells = <1>; > + #interrupt-cells = <2>; > }; > > gpio2: gpio at 53f88000 { > @@ -145,7 +145,7 @@ > gpio-controller; > #gpio-cells = <2>; > interrupt-controller; > - #interrupt-cells = <1>; > + #interrupt-cells = <2>; > }; > > gpio3: gpio at 53f8c000 { > @@ -155,7 +155,7 @@ > gpio-controller; > #gpio-cells = <2>; > interrupt-controller; > - #interrupt-cells = <1>; > + #interrupt-cells = <2>; > }; > > gpio4: gpio at 53f90000 { > @@ -165,7 +165,7 @@ > gpio-controller; > #gpio-cells = <2>; > interrupt-controller; > - #interrupt-cells = <1>; > + #interrupt-cells = <2>; > }; > > wdog at 53f98000 { /* WDOG1 */ > @@ -203,7 +203,7 @@ > gpio-controller; > #gpio-cells = <2>; > interrupt-controller; > - #interrupt-cells = <1>; > + #interrupt-cells = <2>; > }; > > gpio6: gpio at 53fe0000 { > @@ -213,7 +213,7 @@ > gpio-controller; > #gpio-cells = <2>; > interrupt-controller; > - #interrupt-cells = <1>; > + #interrupt-cells = <2>; > }; > > gpio7: gpio at 53fe4000 { > @@ -223,7 +223,7 @@ > gpio-controller; > #gpio-cells = <2>; > interrupt-controller; > - #interrupt-cells = <1>; > + #interrupt-cells = <2>; > }; > > i2c at 53fec000 { /* I2C3 */ > diff --git a/arch/arm/boot/dts/imx6q.dtsi b/arch/arm/boot/dts/imx6q.dtsi > index 16a3884..bf88fb7 100644 > --- a/arch/arm/boot/dts/imx6q.dtsi > +++ b/arch/arm/boot/dts/imx6q.dtsi > @@ -283,7 +283,7 @@ > gpio-controller; > #gpio-cells = <2>; > interrupt-controller; > - #interrupt-cells = <1>; > + #interrupt-cells = <2>; > }; > > gpio2: gpio at 020a0000 { > @@ -293,7 +293,7 @@ > gpio-controller; > #gpio-cells = <2>; > interrupt-controller; > - #interrupt-cells = <1>; > + #interrupt-cells = <2>; > }; > > gpio3: gpio at 020a4000 { > @@ -303,7 +303,7 @@ > gpio-controller; > #gpio-cells = <2>; > interrupt-controller; > - #interrupt-cells = <1>; > + #interrupt-cells = <2>; > }; > > gpio4: gpio at 020a8000 { > @@ -313,7 +313,7 @@ > gpio-controller; > #gpio-cells = <2>; > interrupt-controller; > - #interrupt-cells = <1>; > + #interrupt-cells = <2>; > }; > > gpio5: gpio at 020ac000 { > @@ -323,7 +323,7 @@ > gpio-controller; > #gpio-cells = <2>; > interrupt-controller; > - #interrupt-cells = <1>; > + #interrupt-cells = <2>; > }; > > gpio6: gpio at 020b0000 { > @@ -333,7 +333,7 @@ > gpio-controller; > #gpio-cells = <2>; > interrupt-controller; > - #interrupt-cells = <1>; > + #interrupt-cells = <2>; > }; > > gpio7: gpio at 020b4000 { > @@ -343,7 +343,7 @@ > gpio-controller; > #gpio-cells = <2>; > interrupt-controller; > - #interrupt-cells = <1>; > + #interrupt-cells = <2>; > }; > > kpp at 020b8000 { > -- > 1.7.5.4 > > > -- Pengutronix e.K. | | Industrial Linux Solutions | http://www.pengutronix.de/ | Peiner Str. 6-8, 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 | Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 | ^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2012-07-06 12:38 UTC | newest] Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2012-07-06 7:54 Passing GPIO irq edge/level flags from devicetree to driver, how? Sascha Hauer 2012-07-06 8:16 ` Shawn Guo 2012-07-06 10:36 ` Sascha Hauer 2012-07-06 11:43 ` Shawn Guo 2012-07-06 12:08 ` [PATCH] ARM: dts: imx: update #interrupt-cells for gpio nodes Shawn Guo 2012-07-06 12:38 ` Sascha Hauer
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