mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson
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f2d18fea8b
Switch to gpio_request/free calls Signed-off-by: Jarkko Nikula <jarkko.nikula@nokia.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
67 lines
1.4 KiB
C
67 lines
1.4 KiB
C
/*
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* linux/arch/arm/mach-omap1/leds.c
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*
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* OMAP LEDs dispatcher
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*/
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#include <linux/kernel.h>
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#include <linux/init.h>
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#include <asm/leds.h>
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#include <asm/mach-types.h>
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#include <mach/gpio.h>
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#include <mach/mux.h>
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#include "leds.h"
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static int __init
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omap_leds_init(void)
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{
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if (machine_is_omap_innovator())
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leds_event = innovator_leds_event;
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else if (machine_is_omap_h2()
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|| machine_is_omap_h3()
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|| machine_is_omap_perseus2())
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leds_event = h2p2_dbg_leds_event;
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else if (machine_is_omap_osk())
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leds_event = osk_leds_event;
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else
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return -1;
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if (machine_is_omap_h2()
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|| machine_is_omap_h3()
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#ifdef CONFIG_OMAP_OSK_MISTRAL
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|| machine_is_omap_osk()
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#endif
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) {
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/* LED1/LED2 pins can be used as GPIO (as done here), or by
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* the LPG (works even in deep sleep!), to drive a bicolor
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* LED on the H2 sample board, and another on the H2/P2
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* "surfer" expansion board.
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*
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* The same pins drive a LED on the OSK Mistral board, but
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* that's a different kind of LED (just one color at a time).
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*/
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omap_cfg_reg(P18_1610_GPIO3);
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if (gpio_request(3, "LED red") == 0)
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gpio_direction_output(3, 1);
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else
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printk(KERN_WARNING "LED: can't get GPIO3/red?\n");
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omap_cfg_reg(MPUIO4);
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if (gpio_request(OMAP_MPUIO(4), "LED green") == 0)
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gpio_direction_output(OMAP_MPUIO(4), 1);
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else
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printk(KERN_WARNING "LED: can't get MPUIO4/green?\n");
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}
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leds_event(led_start);
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return 0;
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}
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__initcall(omap_leds_init);
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