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Blackfin arch: be less noisy when gets a gpio conflict after kernel has booted
Once the kernel has booted - be less noisy when someone does a modprobe (and gets a gpio conflict). Signed-off-by: Robin Getz <rgetz@blackfin.uclinux.org> Signed-off-by: Bryan Wu <cooloney@kernel.org>
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parent
abd750a0fa
commit
d6879c585b
1 changed files with 16 additions and 8 deletions
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@ -802,7 +802,8 @@ int peripheral_request(unsigned short per, const char *label)
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*/
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if (unlikely(!check_gpio(ident) &&
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reserved_gpio_map[gpio_bank(ident)] & gpio_bit(ident))) {
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dump_stack();
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if (system_state == SYSTEM_BOOTING)
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dump_stack();
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printk(KERN_ERR
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"%s: Peripheral %d is already reserved as GPIO by %s !\n",
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__func__, ident, get_label(ident));
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@ -830,7 +831,8 @@ int peripheral_request(unsigned short per, const char *label)
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if (cmp_label(ident, label) == 0)
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goto anyway;
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dump_stack();
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if (system_state == SYSTEM_BOOTING)
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dump_stack();
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printk(KERN_ERR
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"%s: Peripheral %d function %d is already reserved by %s !\n",
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__func__, ident, P_FUNCT2MUX(per), get_label(ident));
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@ -946,14 +948,16 @@ int bfin_gpio_request(unsigned gpio, const char *label)
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}
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if (unlikely(reserved_gpio_map[gpio_bank(gpio)] & gpio_bit(gpio))) {
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dump_stack();
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if (system_state == SYSTEM_BOOTING)
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dump_stack();
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printk(KERN_ERR "bfin-gpio: GPIO %d is already reserved by %s !\n",
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gpio, get_label(gpio));
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local_irq_restore_hw(flags);
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return -EBUSY;
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}
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if (unlikely(reserved_peri_map[gpio_bank(gpio)] & gpio_bit(gpio))) {
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dump_stack();
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if (system_state == SYSTEM_BOOTING)
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dump_stack();
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printk(KERN_ERR
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"bfin-gpio: GPIO %d is already reserved as Peripheral by %s !\n",
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gpio, get_label(gpio));
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@ -993,7 +997,8 @@ void bfin_gpio_free(unsigned gpio)
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local_irq_save_hw(flags);
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if (unlikely(!(reserved_gpio_map[gpio_bank(gpio)] & gpio_bit(gpio)))) {
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dump_stack();
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if (system_state == SYSTEM_BOOTING)
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dump_stack();
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gpio_error(gpio);
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local_irq_restore_hw(flags);
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return;
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@ -1017,7 +1022,8 @@ int bfin_gpio_irq_request(unsigned gpio, const char *label)
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local_irq_save_hw(flags);
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if (unlikely(reserved_gpio_irq_map[gpio_bank(gpio)] & gpio_bit(gpio))) {
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dump_stack();
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if (system_state == SYSTEM_BOOTING)
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dump_stack();
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printk(KERN_ERR
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"bfin-gpio: GPIO %d is already reserved as gpio-irq !\n",
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gpio);
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@ -1025,7 +1031,8 @@ int bfin_gpio_irq_request(unsigned gpio, const char *label)
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return -EBUSY;
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}
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if (unlikely(reserved_peri_map[gpio_bank(gpio)] & gpio_bit(gpio))) {
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dump_stack();
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if (system_state == SYSTEM_BOOTING)
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dump_stack();
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printk(KERN_ERR
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"bfin-gpio: GPIO %d is already reserved as Peripheral by %s !\n",
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gpio, get_label(gpio));
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@ -1057,7 +1064,8 @@ void bfin_gpio_irq_free(unsigned gpio)
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local_irq_save_hw(flags);
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if (unlikely(!(reserved_gpio_irq_map[gpio_bank(gpio)] & gpio_bit(gpio)))) {
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dump_stack();
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if (system_state == SYSTEM_BOOTING)
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dump_stack();
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gpio_error(gpio);
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local_irq_restore_hw(flags);
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return;
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