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ARM: OMAP: 5912 OSK GPIO updates

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Start cleaning up GPIO handling for OMAP5912 OSK board:

 - Initialize GPIOs using the cross-platform calls, not the old
   OMAP-private ones.

 - Move touchscreen setup out of ads7846 code into board-specfic
   setup code, where it belongs.

This doesn't depend on the patches to update OMAP to use the
gpiolib implementation framework.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Tony Lindgren <tony@atomide.com>
This commit is contained in:
David Brownell
2008-02-26 00:01:23 -08:00
committed by Tony Lindgren
parent 52e3134423
commit ac37a0b0ba
2 changed files with 17 additions and 53 deletions
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40
drivers/input/touchscreen/ads7846.c
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@@ -28,13 +28,6 @@
#include <linux/spi/ads7846.h>
#include <asm/irq.h>
#ifdef CONFIG_ARM
#include <asm/mach-types.h>
#ifdef CONFIG_ARCH_OMAP
#include <asm/arch/gpio.h>
#endif
#endif
/*
* This code has been heavily tested on a Nokia 770, and lightly
@@ -1174,31 +1167,6 @@ static struct spi_driver ads7846_driver = {
static int __init ads7846_init(void)
{
/* grr, board-specific init should stay out of drivers!! */
#ifdef CONFIG_ARCH_OMAP
if (machine_is_omap_osk()) {
/* GPIO4 = PENIRQ; GPIO6 = BUSY */
omap_request_gpio(4);
omap_set_gpio_direction(4, 1);
omap_request_gpio(6);
omap_set_gpio_direction(6, 1);
}
// also TI 1510 Innovator, bitbanging through FPGA
// also Nokia 770
// also Palm Tungsten T2
#endif
// PXA:
// also Dell Axim X50
// also HP iPaq H191x/H192x/H415x/H435x
// also Intel Lubbock (additional to UCB1400; as temperature sensor)
// also Sharp Zaurus C7xx, C8xx (corgi/sheperd/husky)
// Atmel at91sam9261-EK uses ads7843
// also various AMD Au1x00 devel boards
return spi_register_driver(&ads7846_driver);
}
module_init(ads7846_init);
@@ -1206,14 +1174,6 @@ module_init(ads7846_init);
static void __exit ads7846_exit(void)
{
spi_unregister_driver(&ads7846_driver);
#ifdef CONFIG_ARCH_OMAP
if (machine_is_omap_osk()) {
omap_free_gpio(4);
omap_free_gpio(6);
}
#endif
}
module_exit(ads7846_exit);