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Commit 478e223c authored by Haojian Zhuang's avatar Haojian Zhuang
Browse files

ARM: pxa: recognize gpio number and type 



Use cpuid to recognize the gpio number and type. CPU_PXA26x is the
special case since we can't identify it by cpuid.

Signed-off-by: default avatarHaojian Zhuang <haojian.zhuang@marvell.com>
parent 4929f5a8

drivers/gpio/gpio-pxa.c

+40 −1
Original line number Diff line number Diff line
@@ -347,12 +347,51 @@ static struct irq_chip pxa_muxed_gpio_chip = { 
	.irq_set_type	= pxa_gpio_irq_type,

};



static int pxa_gpio_nums(void)

{

	int count = 0;



#ifdef CONFIG_ARCH_PXA

	if (cpu_is_pxa25x()) {

#ifdef CONFIG_CPU_PXA26x

		count = 89;

		gpio_type = PXA26X_GPIO;

#elif defined(CONFIG_PXA25x)

		count = 84;

		gpio_type = PXA26X_GPIO;

#endif /* CONFIG_CPU_PXA26x */

	} else if (cpu_is_pxa27x()) {

		count = 120;

		gpio_type = PXA27X_GPIO;

	} else if (cpu_is_pxa93x() || cpu_is_pxa95x()) {

		count = 191;

		gpio_type = PXA93X_GPIO;

	} else if (cpu_is_pxa3xx()) {

		count = 127;

		gpio_type = PXA3XX_GPIO;

	}

#endif /* CONFIG_ARCH_PXA */



#ifdef CONFIG_ARCH_MMP

	if (cpu_is_pxa168() || cpu_is_pxa910()) {

		count = 127;

		gpio_type = MMP_GPIO;

	} else if (cpu_is_mmp2()) {

		count = 191;

		gpio_type = MMP2_GPIO;

	}

#endif /* CONFIG_ARCH_MMP */

	return count;

}



void __init pxa_init_gpio(int mux_irq, int start, int end, set_wake_t fn)

{

	struct pxa_gpio_chip *c;

	int gpio, irq;



	pxa_last_gpio = end;

	pxa_last_gpio = pxa_gpio_nums();

	if (!pxa_last_gpio)

		return;



	/* Initialize GPIO chips */

	pxa_init_gpio_chip(end);