diff options
| author | Robin Getz <rgetz@blackfin.uclinux.org> | 2009-03-29 01:10:30 +0800 |
|---|---|---|
| committer | Bryan Wu <cooloney@kernel.org> | 2009-03-29 01:10:30 +0800 |
| commit | d6879c585b7f8c2f3eb2f7e7beac806af4e9755c (patch) | |
| tree | bf7c9739a16a33c69e617986e7b5b646c98ec5a3 /arch/blackfin/kernel/bfin_gpio.c | |
| parent | abd750a0fa731f9fd568526adb96d11322734167 (diff) | |
| download | lwn-d6879c585b7f8c2f3eb2f7e7beac806af4e9755c.tar.gz lwn-d6879c585b7f8c2f3eb2f7e7beac806af4e9755c.zip | |
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>
Diffstat (limited to 'arch/blackfin/kernel/bfin_gpio.c')
| -rw-r--r-- | arch/blackfin/kernel/bfin_gpio.c | 24 |
1 files changed, 16 insertions, 8 deletions
diff --git a/arch/blackfin/kernel/bfin_gpio.c b/arch/blackfin/kernel/bfin_gpio.c index 031ea3e21400..a0678da40532 100644 --- a/arch/blackfin/kernel/bfin_gpio.c +++ b/arch/blackfin/kernel/bfin_gpio.c @@ -802,7 +802,8 @@ int peripheral_request(unsigned short per, const char *label) */ if (unlikely(!check_gpio(ident) && reserved_gpio_map[gpio_bank(ident)] & gpio_bit(ident))) { - dump_stack(); + if (system_state == SYSTEM_BOOTING) + dump_stack(); printk(KERN_ERR "%s: Peripheral %d is already reserved as GPIO by %s !\n", __func__, ident, get_label(ident)); @@ -830,7 +831,8 @@ int peripheral_request(unsigned short per, const char *label) if (cmp_label(ident, label) == 0) goto anyway; - dump_stack(); + if (system_state == SYSTEM_BOOTING) + dump_stack(); printk(KERN_ERR "%s: Peripheral %d function %d is already reserved by %s !\n", __func__, ident, P_FUNCT2MUX(per), get_label(ident)); @@ -946,14 +948,16 @@ int bfin_gpio_request(unsigned gpio, const char *label) } if (unlikely(reserved_gpio_map[gpio_bank(gpio)] & gpio_bit(gpio))) { - dump_stack(); + if (system_state == SYSTEM_BOOTING) + dump_stack(); printk(KERN_ERR "bfin-gpio: GPIO %d is already reserved by %s !\n", gpio, get_label(gpio)); local_irq_restore_hw(flags); return -EBUSY; } if (unlikely(reserved_peri_map[gpio_bank(gpio)] & gpio_bit(gpio))) { - dump_stack(); + if (system_state == SYSTEM_BOOTING) + dump_stack(); printk(KERN_ERR "bfin-gpio: GPIO %d is already reserved as Peripheral by %s !\n", gpio, get_label(gpio)); @@ -993,7 +997,8 @@ void bfin_gpio_free(unsigned gpio) local_irq_save_hw(flags); if (unlikely(!(reserved_gpio_map[gpio_bank(gpio)] & gpio_bit(gpio)))) { - dump_stack(); + if (system_state == SYSTEM_BOOTING) + dump_stack(); gpio_error(gpio); local_irq_restore_hw(flags); return; @@ -1017,7 +1022,8 @@ int bfin_gpio_irq_request(unsigned gpio, const char *label) local_irq_save_hw(flags); if (unlikely(reserved_gpio_irq_map[gpio_bank(gpio)] & gpio_bit(gpio))) { - dump_stack(); + if (system_state == SYSTEM_BOOTING) + dump_stack(); printk(KERN_ERR "bfin-gpio: GPIO %d is already reserved as gpio-irq !\n", gpio); @@ -1025,7 +1031,8 @@ int bfin_gpio_irq_request(unsigned gpio, const char *label) return -EBUSY; } if (unlikely(reserved_peri_map[gpio_bank(gpio)] & gpio_bit(gpio))) { - dump_stack(); + if (system_state == SYSTEM_BOOTING) + dump_stack(); printk(KERN_ERR "bfin-gpio: GPIO %d is already reserved as Peripheral by %s !\n", gpio, get_label(gpio)); @@ -1057,7 +1064,8 @@ void bfin_gpio_irq_free(unsigned gpio) local_irq_save_hw(flags); if (unlikely(!(reserved_gpio_irq_map[gpio_bank(gpio)] & gpio_bit(gpio)))) { - dump_stack(); + if (system_state == SYSTEM_BOOTING) + dump_stack(); gpio_error(gpio); local_irq_restore_hw(flags); return; |