dm: core: Replace of_offset with accessor
At present devices use a simple integer offset to record the device tree
node associated with the device. In preparation for supporting a live
device tree, which uses a node pointer instead, refactor existing code to
access this field through an inline function.
Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/doc/driver-model/README.txt b/doc/driver-model/README.txt
index 1b5ccec..fea324e 100644
--- a/doc/driver-model/README.txt
+++ b/doc/driver-model/README.txt
@@ -684,7 +684,7 @@
g. If the driver provides an ofdata_to_platdata() method, then this is
called to convert the device tree data into platform data. This should
- do various calls like fdtdec_get_int(gd->fdt_blob, dev->of_offset, ...)
+ do various calls like fdtdec_get_int(gd->fdt_blob, dev_of_offset(dev), ...)
to access the node and store the resulting information into dev->platdata.
After this point, the device works the same way whether it was bound
using a device tree node or U_BOOT_DEVICE() structure. In either case,
diff --git a/doc/driver-model/of-plat.txt b/doc/driver-model/of-plat.txt
index 86e5e25..0063bfe 100644
--- a/doc/driver-model/of-plat.txt
+++ b/doc/driver-model/of-plat.txt
@@ -205,7 +205,7 @@
/* Decode the device tree data */
struct mmc_platdata *plat = dev_get_platdata(dev);
const void *blob = gd->fdt_blob;
- int node = dev->of_offset;
+ int node = dev_of_offset(dev);
plat->fifo_depth = fdtdec_get_int(blob, node, "fifo-depth", 0);
#endif
diff --git a/doc/driver-model/spi-howto.txt b/doc/driver-model/spi-howto.txt
index ee4abf4..1955ffe 100644
--- a/doc/driver-model/spi-howto.txt
+++ b/doc/driver-model/spi-howto.txt
@@ -223,7 +223,7 @@
{
struct exynos_spi_platdata *plat = bus->platdata;
const void *blob = gd->fdt_blob;
- int node = bus->of_offset;
+ int node = dev_of_offset(bus);
plat->regs = (struct exynos_spi *)fdtdec_get_addr(blob, node, "reg");
plat->periph_id = pinmux_decode_periph_id(blob, node);