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drivers: gpio: gpio_mcux_lpc: Use arbitrary amount of IRQ

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Zephyr implementation is limited to 4 IRQ per GPIO bank when up to 8 is
theoritically possible.

It is now possible to use until 8 IRQ per GPIO bank. This can be
achieved with minimal effort in a device tree overlay:

&gpio0 {
	interrupts = <4 2>,<5 2>,<6 2>,<7 2>,<32 2>,<33 2>;
};

&gpio1 {
	interrupts = <34 2>,<35 2>;
};

Signed-off-by: Guy Morand <guy.morand@bytesatwork.ch>
This commit is contained in:
Guy Morand 2022-07-15 15:34:33 +02:00 committed by Carles Cufí
parent 5cf47b1e7f
commit a124203929
1 changed files with 4 additions and 6 deletions
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10
drivers/gpio/gpio_mcux_lpc.c
View file

@ -411,8 +411,9 @@ static const clock_ip_name_t gpio_clock_names[] = GPIO_CLOCKS;
data->isr_list[data->isr_list_idx++] = DT_INST_IRQ_BY_IDX(n, m, irq); \
} while (false)
#define GPIO_MCUX_LPC_IRQ(n, m) \
COND_CODE_1(DT_INST_IRQ_HAS_IDX(n, m), (GPIO_MCUX_LPC_IRQ_CONNECT(n, m)), ())
#define GPIO_MCUX_LPC_IRQ(idx, inst) \
COND_CODE_1(DT_INST_IRQ_HAS_IDX(inst, idx), \
(GPIO_MCUX_LPC_IRQ_CONNECT(inst, idx)), ())
#define GPIO_MCUX_LPC(n) \
@ -441,10 +442,7 @@ static const clock_ip_name_t gpio_clock_names[] = GPIO_CLOCKS;
{ \
gpio_mcux_lpc_init(dev); \
\
GPIO_MCUX_LPC_IRQ(n, 0); \
GPIO_MCUX_LPC_IRQ(n, 1); \
GPIO_MCUX_LPC_IRQ(n, 2); \
GPIO_MCUX_LPC_IRQ(n, 3); \
LISTIFY(8, GPIO_MCUX_LPC_IRQ, (;), n) \
\
return 0; \
}