amba-clcd: Remove check for 'reg' value in clcdfb_probe

This check was attempting to ensure only one clcd device in the
device-tree was probed, however the check fails in the valid case where
the device is a child of another device and the 'reg' value is a offset
from the start of that other device, not an absolute address. This
occurs on vexpress with the motherboard clcd being a child of iofga.

For now, we will just have to rely on there only being one display
device specified in device-tree.

Signed-off-by: Jon Medhurst <tixy@linaro.org>

diff --git a/drivers/video/amba-clcd.c b/drivers/video/amba-clcd.c
index 3cacf26f3e5534c87da3e8b9018d8fa76e174330..53af3d18a0c6dfb11af2212c5d87ed47e239d7a8 100644 (file)
--- a/drivers/video/amba-clcd.c
+++ b/drivers/video/amba-clcd.c
@@ -768,21 +768,6 @@ static int clcdfb_probe(struct amba_device *dev, const struct amba_id *id)
 
 #ifdef CONFIG_OF
        if (dev->dev.of_node) {
-               const __be32 *prop;
-               int len, na, ns;
-               phys_addr_t reg_base;
-
-               na = of_n_addr_cells(dev->dev.of_node);
-               ns = of_n_size_cells(dev->dev.of_node);
-
-               prop = of_get_property(dev->dev.of_node, "reg", &len);
-               if (WARN_ON(!prop || len < (na + ns) * sizeof(*prop)))
-                       return -EINVAL;
-               reg_base = of_read_number(prop, na);
-
-               if (dev->res.start != reg_base)
-                       return -EINVAL;
-
                if (!board) {
                        board = kzalloc(sizeof(struct clcd_board), GFP_KERNEL);
                        if (!board)