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[07/17] iommu/omap: Remove bogus version check in context save/restore

Message ID 1412111772-38006-8-git-send-email-s-anna@ti.com (mailing list archive)
State New, archived
Headers show

Commit Message

Suman Anna Sept. 30, 2014, 9:16 p.m. UTC 
The omap2_iommu_save_ctx() and omap2_iommu_restore_ctx()
performs a sanity version check against a fixed value
that is correct only for OMAP2/OMAP3 IOMMUs. This fixed check
does not scale for all OMAP2+ IOMMUs and is not absolutely
required, so it has been removed.

Signed-off-by: Suman Anna <s-anna@ti.com>
---
 drivers/iommu/omap-iommu2.c | 6 ------
 1 file changed, 6 deletions(-)
diff mbox

Patch

diff --git a/drivers/iommu/omap-iommu2.c b/drivers/iommu/omap-iommu2.c
index 2f6a9f7..372141b 100644
--- a/drivers/iommu/omap-iommu2.c
+++ b/drivers/iommu/omap-iommu2.c
@@ -26,8 +26,6 @@ 
 /*
  * omap2 architecture specific register bit definitions
  */
-#define IOMMU_ARCH_VERSION	0x00000011
-
 /* IRQSTATUS & IRQENABLE */
 #define MMU_IRQ_MULTIHITFAULT	(1 << 4)
 #define MMU_IRQ_TABLEWALKFAULT	(1 << 3)
@@ -268,8 +266,6 @@  static void omap2_iommu_save_ctx(struct omap_iommu *obj)
 		p[i] = iommu_read_reg(obj, i * sizeof(u32));
 		dev_dbg(obj->dev, "%s\t[%02d] %08x\n", __func__, i, p[i]);
 	}
-
-	BUG_ON(p[0] != IOMMU_ARCH_VERSION);
 }
 
 static void omap2_iommu_restore_ctx(struct omap_iommu *obj)
@@ -281,8 +277,6 @@  static void omap2_iommu_restore_ctx(struct omap_iommu *obj)
 		iommu_write_reg(obj, p[i], i * sizeof(u32));
 		dev_dbg(obj->dev, "%s\t[%02d] %08x\n", __func__, i, p[i]);
 	}
-
-	BUG_ON(p[0] != IOMMU_ARCH_VERSION);
 }
 
 static void omap2_cr_to_e(struct cr_regs *cr, struct iotlb_entry *e)