diff options
Diffstat (limited to 'lib/logic_pio.c')
| -rw-r--r-- | lib/logic_pio.c | 25 |
1 files changed, 14 insertions, 11 deletions
diff --git a/lib/logic_pio.c b/lib/logic_pio.c index f511a99bb389..07b4b9a1f54b 100644 --- a/lib/logic_pio.c +++ b/lib/logic_pio.c @@ -28,6 +28,8 @@ static DEFINE_MUTEX(io_range_mutex); * @new_range: pointer to the IO range to be registered. * * Returns 0 on success, the error code in case of failure. + * If the range already exists, -EEXIST will be returned, which should be + * considered a success. * * Register a new IO range node in the IO range list. */ @@ -51,6 +53,7 @@ int logic_pio_register_range(struct logic_pio_hwaddr *new_range) list_for_each_entry(range, &io_range_list, list) { if (range->fwnode == new_range->fwnode) { /* range already there */ + ret = -EEXIST; goto end_register; } if (range->flags == LOGIC_PIO_CPU_MMIO && @@ -229,13 +232,13 @@ unsigned long logic_pio_trans_cpuaddr(resource_size_t addr) } #if defined(CONFIG_INDIRECT_PIO) && defined(PCI_IOBASE) -#define BUILD_LOGIC_IO(bw, type) \ -type logic_in##bw(unsigned long addr) \ +#define BUILD_LOGIC_IO(bwl, type) \ +type logic_in##bwl(unsigned long addr) \ { \ type ret = (type)~0; \ \ if (addr < MMIO_UPPER_LIMIT) { \ - ret = read##bw(PCI_IOBASE + addr); \ + ret = _in##bwl(addr); \ } else if (addr >= MMIO_UPPER_LIMIT && addr < IO_SPACE_LIMIT) { \ struct logic_pio_hwaddr *entry = find_io_range(addr); \ \ @@ -248,10 +251,10 @@ type logic_in##bw(unsigned long addr) \ return ret; \ } \ \ -void logic_out##bw(type value, unsigned long addr) \ +void logic_out##bwl(type value, unsigned long addr) \ { \ if (addr < MMIO_UPPER_LIMIT) { \ - write##bw(value, PCI_IOBASE + addr); \ + _out##bwl(value, addr); \ } else if (addr >= MMIO_UPPER_LIMIT && addr < IO_SPACE_LIMIT) { \ struct logic_pio_hwaddr *entry = find_io_range(addr); \ \ @@ -263,11 +266,11 @@ void logic_out##bw(type value, unsigned long addr) \ } \ } \ \ -void logic_ins##bw(unsigned long addr, void *buffer, \ - unsigned int count) \ +void logic_ins##bwl(unsigned long addr, void *buffer, \ + unsigned int count) \ { \ if (addr < MMIO_UPPER_LIMIT) { \ - reads##bw(PCI_IOBASE + addr, buffer, count); \ + reads##bwl(PCI_IOBASE + addr, buffer, count); \ } else if (addr >= MMIO_UPPER_LIMIT && addr < IO_SPACE_LIMIT) { \ struct logic_pio_hwaddr *entry = find_io_range(addr); \ \ @@ -280,11 +283,11 @@ void logic_ins##bw(unsigned long addr, void *buffer, \ \ } \ \ -void logic_outs##bw(unsigned long addr, const void *buffer, \ - unsigned int count) \ +void logic_outs##bwl(unsigned long addr, const void *buffer, \ + unsigned int count) \ { \ if (addr < MMIO_UPPER_LIMIT) { \ - writes##bw(PCI_IOBASE + addr, buffer, count); \ + writes##bwl(PCI_IOBASE + addr, buffer, count); \ } else if (addr >= MMIO_UPPER_LIMIT && addr < IO_SPACE_LIMIT) { \ struct logic_pio_hwaddr *entry = find_io_range(addr); \ \ |