diff options
| author | Graf Yang <graf.yang@analog.com> | 2008-11-18 10:48:22 +0100 |
|---|---|---|
| committer | Bryan Wu <cooloney@kernel.org> | 2008-11-18 10:48:22 +0100 |
| commit | 8eb3e3bfd5544c4549a52e3cfc3df2be0b224dbd (patch) | |
| tree | e84d647b8d29fe6cf9fdc22e6ab1fe877164067a /arch | |
| parent | Blackfin arch: Add code to free gpio when shutdown irq (diff) | |
| download | linux-8eb3e3bfd5544c4549a52e3cfc3df2be0b224dbd.tar.xz linux-8eb3e3bfd5544c4549a52e3cfc3df2be0b224dbd.zip | |
Blackfin arch: Request the gpio resource when making it as an irq pin, avoiding override it.
Signed-off-by: Graf Yang <graf.yang@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/blackfin/kernel/bfin_gpio.c | 4 | ||||
| -rw-r--r-- | arch/blackfin/mach-common/ints-priority.c | 15 |
2 files changed, 16 insertions, 3 deletions
diff --git a/arch/blackfin/kernel/bfin_gpio.c b/arch/blackfin/kernel/bfin_gpio.c index f8d666e6741b..de235b8f37a8 100644 --- a/arch/blackfin/kernel/bfin_gpio.c +++ b/arch/blackfin/kernel/bfin_gpio.c @@ -1257,10 +1257,10 @@ static int gpio_proc_read(char *buf, char **start, off_t offset, for (c = 0; c < MAX_RESOURCES; c++) { if (!check_gpio(c) && (reserved_gpio_map[gpio_bank(c)] & gpio_bit(c))) - len = sprintf(buf, "GPIO_%d: %s \t\tGPIO %s\n", c, + len = sprintf(buf, "GPIO_%d: \t%s \t\tGPIO %s\n", c, get_label(c), get_gpio_dir(c) ? "OUTPUT" : "INPUT"); else if (reserved_peri_map[gpio_bank(c)] & gpio_bit(c)) - len = sprintf(buf, "GPIO_%d: %s \t\tPeripheral\n", c, get_label(c)); + len = sprintf(buf, "GPIO_%d: \t%s \t\tPeripheral\n", c, get_label(c)); else continue; buf += len; diff --git a/arch/blackfin/mach-common/ints-priority.c b/arch/blackfin/mach-common/ints-priority.c index efa27cb1b721..a0bfca921712 100644 --- a/arch/blackfin/mach-common/ints-priority.c +++ b/arch/blackfin/mach-common/ints-priority.c @@ -437,8 +437,15 @@ static void bfin_gpio_irq_shutdown(unsigned int irq) static int bfin_gpio_irq_type(unsigned int irq, unsigned int type) { + int ret; + char buf[16]; u32 gpionr = irq_to_gpio(irq); + snprintf(buf, 16, "gpio-irq%d", irq); + ret = bfin_gpio_request(gpionr, buf); + if (ret) + return ret; + if (type == IRQ_TYPE_PROBE) { /* only probe unenabled GPIO interrupt lines */ if (__test_bit(gpionr, gpio_enabled)) @@ -738,7 +745,8 @@ static void bfin_gpio_irq_shutdown(unsigned int irq) static int bfin_gpio_irq_type(unsigned int irq, unsigned int type) { - + int ret; + char buf[16]; u32 gpionr = irq_to_gpio(irq); u32 pint_val = irq2pint_lut[irq - SYS_IRQS]; u32 pintbit = PINT_BIT(pint_val); @@ -747,6 +755,11 @@ static int bfin_gpio_irq_type(unsigned int irq, unsigned int type) if (pint_val == IRQ_NOT_AVAIL) return -ENODEV; + snprintf(buf, 16, "gpio-irq%d", irq); + ret = bfin_gpio_request(gpionr, buf); + if (ret) + return ret; + if (type == IRQ_TYPE_PROBE) { /* only probe unenabled GPIO interrupt lines */ if (__test_bit(gpionr, gpio_enabled)) |