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[Blackfin] arch: fix up gpio code style -- no functional changes 

Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
This commit is contained in:
Mike Frysinger 2008-03-26 08:35:46 +08:00 committed by Bryan Wu
parent f85c4abdbc
commit d171c23327
1 changed files with 39 additions and 47 deletions
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86
arch/blackfin/kernel/bfin_gpio.c
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@ -348,11 +348,10 @@ static void portmux_setup(unsigned short per, unsigned short function)
offset = port_mux_lut[y].offset; offset = port_mux_lut[y].offset;
muxreg = bfin_read_PORT_MUX(); muxreg = bfin_read_PORT_MUX();
if (offset != 1) { if (offset != 1)
muxreg &= ~(1 << offset); muxreg &= ~(1 << offset);
} else { else
muxreg &= ~(3 << 1); muxreg &= ~(3 << 1);
}
muxreg |= (function << offset); muxreg |= (function << offset);
bfin_write_PORT_MUX(muxreg); bfin_write_PORT_MUX(muxreg);
@ -424,11 +423,9 @@ static void default_gpio(unsigned gpio)
static int __init bfin_gpio_init(void) static int __init bfin_gpio_init(void)
{ {
printk(KERN_INFO "Blackfin GPIO Controller\n"); printk(KERN_INFO "Blackfin GPIO Controller\n");
return 0; return 0;
} }
arch_initcall(bfin_gpio_init); arch_initcall(bfin_gpio_init);
@ -833,20 +830,20 @@ int peripheral_request(unsigned short per, const char *label)
u16 funct = get_portmux(ident); u16 funct = get_portmux(ident);
/* /*
* Pin functions like AMC address strobes my * Pin functions like AMC address strobes my
* be requested and used by several drivers * be requested and used by several drivers
*/ */
if (!((per & P_MAYSHARE) && (funct == P_FUNCT2MUX(per)))) { if (!((per & P_MAYSHARE) && (funct == P_FUNCT2MUX(per)))) {
/* /*
* Allow that the identical pin function can * Allow that the identical pin function can
* be requested from the same driver twice * be requested from the same driver twice
*/ */
if (cmp_label(ident, label) == 0) if (cmp_label(ident, label) == 0)
goto anyway; goto anyway;
dump_stack(); dump_stack();
printk(KERN_ERR printk(KERN_ERR
@ -857,7 +854,7 @@ int peripheral_request(unsigned short per, const char *label)
} }
} }
anyway: anyway:
reserved_peri_map[gpio_bank(ident)] |= gpio_bit(ident); reserved_peri_map[gpio_bank(ident)] |= gpio_bit(ident);
portmux_setup(ident, P_FUNCT2MUX(per)); portmux_setup(ident, P_FUNCT2MUX(per));
@ -890,33 +887,33 @@ int peripheral_request(unsigned short per, const char *label)
if (!check_gpio(ident)) { if (!check_gpio(ident)) {
if (unlikely(reserved_gpio_map[gpio_bank(ident)] & gpio_bit(ident))) { if (unlikely(reserved_gpio_map[gpio_bank(ident)] & gpio_bit(ident))) {
dump_stack(); dump_stack();
printk(KERN_ERR printk(KERN_ERR
"%s: Peripheral %d is already reserved as GPIO by %s !\n", "%s: Peripheral %d is already reserved as GPIO by %s !\n",
__FUNCTION__, ident, get_label(ident)); __FUNCTION__, ident, get_label(ident));
local_irq_restore(flags); local_irq_restore(flags);
return -EBUSY; return -EBUSY;
} }
} }
if (unlikely(reserved_peri_map[gpio_bank(ident)] & gpio_bit(ident))) { if (unlikely(reserved_peri_map[gpio_bank(ident)] & gpio_bit(ident))) {
/* /*
* Pin functions like AMC address strobes my * Pin functions like AMC address strobes my
* be requested and used by several drivers * be requested and used by several drivers
*/ */
if (!(per & P_MAYSHARE)) { if (!(per & P_MAYSHARE)) {
/* /*
* Allow that the identical pin function can * Allow that the identical pin function can
* be requested from the same driver twice * be requested from the same driver twice
*/ */
if (cmp_label(ident, label) == 0) if (cmp_label(ident, label) == 0)
goto anyway; goto anyway;
dump_stack(); dump_stack();
printk(KERN_ERR printk(KERN_ERR
@ -930,7 +927,7 @@ int peripheral_request(unsigned short per, const char *label)
} }
anyway: anyway:
portmux_setup(per, P_FUNCT2MUX(per)); portmux_setup(per, P_FUNCT2MUX(per));
port_setup(ident, PERIPHERAL_USAGE); port_setup(ident, PERIPHERAL_USAGE);
@ -954,10 +951,10 @@ int peripheral_request_list(unsigned short per[], const char *label)
ret = peripheral_request(per[cnt], label); ret = peripheral_request(per[cnt], label);
if (ret < 0) { if (ret < 0) {
for ( ; cnt > 0; cnt--) { for ( ; cnt > 0; cnt--)
peripheral_free(per[cnt - 1]); peripheral_free(per[cnt - 1]);
}
return ret; return ret;
} }
} }
@ -981,15 +978,13 @@ void peripheral_free(unsigned short per)
local_irq_save(flags); local_irq_save(flags);
if (unlikely(!(reserved_peri_map[gpio_bank(ident)] if (unlikely(!(reserved_peri_map[gpio_bank(ident)] & gpio_bit(ident)))) {
& gpio_bit(ident)))) {
local_irq_restore(flags); local_irq_restore(flags);
return; return;
} }
if (!(per & P_MAYSHARE)) { if (!(per & P_MAYSHARE))
port_setup(ident, GPIO_USAGE); port_setup(ident, GPIO_USAGE);
}
reserved_peri_map[gpio_bank(ident)] &= ~gpio_bit(ident); reserved_peri_map[gpio_bank(ident)] &= ~gpio_bit(ident);
@ -1002,11 +997,8 @@ EXPORT_SYMBOL(peripheral_free);
void peripheral_free_list(unsigned short per[]) void peripheral_free_list(unsigned short per[])
{ {
u16 cnt; u16 cnt;
for (cnt = 0; per[cnt] != 0; cnt++)
for (cnt = 0; per[cnt] != 0; cnt++) {
peripheral_free(per[cnt]); peripheral_free(per[cnt]);
}
} }
EXPORT_SYMBOL(peripheral_free_list); EXPORT_SYMBOL(peripheral_free_list);