iommu/omap: Remove ver debugfs entry

The debugfs entry 'ver' to read the OMAP IOMMU version is
not much useful for developers, so it has been removed. The
same can be deduced from the register dump, provided by the
debugfs entry 'regs', REVISION register. This also allows us
to remove the omap_iommu_arch_revision() which is currently
returning a fixed value.

Signed-off-by: Suman Anna <s-anna@ti.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>

diff --git a/drivers/iommu/omap-iommu-debug.c b/drivers/iommu/omap-iommu-debug.c
index 531658d173335dbb86fb511391d89af485a94c96..0fb92aa42c19e5719f6e04d2403fe8d5fb655102 100644 (file)
--- a/drivers/iommu/omap-iommu-debug.c
+++ b/drivers/iommu/omap-iommu-debug.c
@@ -30,17 +30,6 @@ static DEFINE_MUTEX(iommu_debug_lock);
 
 static struct dentry *iommu_debug_root;
 
-static ssize_t debug_read_ver(struct file *file, char __user *userbuf,
-                             size_t count, loff_t *ppos)
-{
-       u32 ver = omap_iommu_arch_version();
-       char buf[MAXCOLUMN], *p = buf;
-
-       p += sprintf(p, "H/W version: %d.%d\n", (ver >> 4) & 0xf , ver & 0xf);
-
-       return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
-}
-
 static ssize_t debug_read_regs(struct file *file, char __user *userbuf,
                               size_t count, loff_t *ppos)
 {
@@ -228,7 +217,6 @@ static ssize_t debug_read_pagetable(struct file *file, char __user *userbuf,
                .llseek = generic_file_llseek,                          \
        };
 
-DEBUG_FOPS_RO(ver);
 DEBUG_FOPS_RO(regs);
 DEBUG_FOPS_RO(tlb);
 DEBUG_FOPS(pagetable);
@@ -273,7 +261,6 @@ static int iommu_debug_register(struct device *dev, void *data)
        if (!d)
                goto nomem;
 
-       DEBUG_ADD_FILE_RO(ver);
        DEBUG_ADD_FILE_RO(regs);
        DEBUG_ADD_FILE_RO(tlb);
        DEBUG_ADD_FILE(pagetable);