On Mon, May 01, 2017 at 09:38:13AM +0200, Christophe Leroy wrote:
> This patch allows the use of IRQ to notify the change of GPIO status
> on MPC8xx CPM IO ports. This then allows to associate IRQs to GPIOs
> in the Device Tree.
Wow, that's an old part.
> Ex:
> CPM1_PIO_C: gpio-controller@960 {
> #gpio-cells = <2>;
> compatible = "fsl,cpm1-pario-bank-c";
> reg = <0x960 0x10>;
> fsl,cpm1-gpio-irq-mask = <0x0fff>;
> interrupts = <1 2 6 9 10 11 14 15 23 24 26 31>;
> interrupt-parent = <&CPM_PIC>;
> gpio-controller;
> };
>
> The property 'fsl,cpm1-gpio-irq-mask' defines which of the 16 GPIOs
> have the associated interrupts defined in the 'interrupts' property.
>
> Signed-off-by: Christophe Leroy <christophe.leroy@xxxxxx>
> ---
> v2: Updated the binding ; changed property 'interrupt-mask' to 'fsl,cpm1-gpio-irq-mask'
>
> .../devicetree/bindings/soc/fsl/cpm_qe/gpio.txt | 21 +++++++++++++++++-
Acked-by: Rob Herring <robh@xxxxxxxxxx>
> arch/powerpc/include/asm/cpm1.h | 2 ++
> arch/powerpc/sysdev/cpm1.c | 25 ++++++++++++++++++++++
> 3 files changed, 47 insertions(+), 1 deletion(-)
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