diff options
Diffstat (limited to 'arch/arm/mach-omap2/gpmc.c')
| -rw-r--r-- | arch/arm/mach-omap2/gpmc.c | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/arch/arm/mach-omap2/gpmc.c b/arch/arm/mach-omap2/gpmc.c index d8f57824423f..e290b989aa94 100644 --- a/arch/arm/mach-omap2/gpmc.c +++ b/arch/arm/mach-omap2/gpmc.c @@ -54,7 +54,7 @@ static struct resource gpmc_mem_root; static struct resource gpmc_cs_mem[GPMC_CS_NUM]; -static spinlock_t gpmc_mem_lock = SPIN_LOCK_UNLOCKED; +static DEFINE_SPINLOCK(gpmc_mem_lock); static unsigned gpmc_cs_map; static void __iomem *gpmc_base = @@ -246,14 +246,22 @@ static int gpmc_cs_mem_enabled(int cs) return l & (1 << 6); } -static void gpmc_cs_set_reserved(int cs, int reserved) +int gpmc_cs_set_reserved(int cs, int reserved) { + if (cs > GPMC_CS_NUM) + return -ENODEV; + gpmc_cs_map &= ~(1 << cs); gpmc_cs_map |= (reserved ? 1 : 0) << cs; + + return 0; } -static int gpmc_cs_reserved(int cs) +int gpmc_cs_reserved(int cs) { + if (cs > GPMC_CS_NUM) + return -ENODEV; + return gpmc_cs_map & (1 << cs); } |