l = iommu_read_reg(obj, MMU_SYSSTATUS);
if (l & MMU_SYS_RESETDONE)
break;
- } while (time_after(jiffies, timeout));
+ } while (!time_after(jiffies, timeout));
if (!(l & MMU_SYS_RESETDONE)) {
dev_err(obj->dev, "can't take mmu out of reset\n");
}
#define pr_reg(name) \
- p += sprintf(p, "%20s: %08x\n", \
- __stringify(name), iommu_read_reg(obj, MMU_##name));
-
-static ssize_t omap2_iommu_dump_ctx(struct iommu *obj, char *buf)
+ do { \
+ ssize_t bytes; \
+ const char *str = "%20s: %08x\n"; \
+ const int maxcol = 32; \
+ bytes = snprintf(p, maxcol, str, __stringify(name), \
+ iommu_read_reg(obj, MMU_##name)); \
+ p += bytes; \
+ len -= bytes; \
+ if (len < maxcol) \
+ goto out; \
+ } while (0)
+
+static ssize_t omap2_iommu_dump_ctx(struct iommu *obj, char *buf, ssize_t len)
{
char *p = buf;
pr_reg(READ_CAM);
pr_reg(READ_RAM);
pr_reg(EMU_FAULT_AD);
-
+out:
return p - buf;
}