My mistake.
After checking over and over the dts i figured out that gpio_130 is on bank
5 (not 6).
&i2c2 {
clock-frequency = <400000>;
status = "okay";
foo: foo@0x08 {
compatible = "foo, foo_i2c";
reg = <0x08>;
interrupt-parent = <&gpio5>;
interrupts = <2 IRQ_TYPE_LEVEL_LOW>;
enable = <&gpio5 29 GPIO_ACTIVE_HIGH>;
};
};
Is working fine :)
On Tuesday, April 8, 2014 11:27:55 AM UTC+2, Christophe Ricard wrote:
>
> Hi,
>
> I am currently facing concern to manage gpio interrupt inside my device
> driver with device tree. It is working fine with static platform_data
> configuration.
> My device is connected to i2c. Here is my how my node looks like:
>
> &i2c2 {
> clock-frequency = <400000>;
> status = "okay";
> foo: foo@0x08 {
> compatible = "foo, foo_i2c";
> reg = <0x08>;
> interrupt-parent = <&gpio6>;
> interrupts = <2 IRQ_TYPE_LEVEL_LOW>;
> enable = <&gpio6 29 GPIO_ACTIVE_HIGH>;
> };
> };
>
> In my probe function, i am able to retrieve and configure the enable gpio.
> I am retrieving the interrupts with irq_of_parse_and_map(pp, 0); and the
> polarity with irq_get_trigger_type.
>
> When requesting the irq with devm_request_threaded_irq, the irq goes crazy
> and trigger multiple interrupt for ever.
>
> This phenomenon is not visible with following node:
> &i2c2 {
> clock-frequency = <400000>;
> status = "okay";
> foo: foo@0x08 {
> compatible = "foo, foo_i2c";
> reg = <0x08>;
> irq = <&gpio6 2 IRQ_TYPE_LEVEL_LOW>;
> enable = <&gpio6 29 GPIO_ACTIVE_HIGH>;
> };
> };
>
> And using following sequence:
> - devm_gpio_request
> - gpio_direction_input
> - gpio_to_irq
> - devm_request_threaded_irq
>
>
> gpio6 2 is gpio_130
> gpio6 29 is gpio_157
>
> Do you have any idea about what i am doing wrong ?
>
> Best Regards
> Christophe
>
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