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/drivers/spi/pic32_spi.c b/drivers/spi/pic32_spi.c
index 25ca1f3..78d78bc 100644
--- a/drivers/spi/pic32_spi.c
+++ b/drivers/spi/pic32_spi.c
@@ -377,13 +377,14 @@
{
struct pic32_spi_priv *priv = dev_get_priv(bus);
struct dm_spi_bus *dm_spi = dev_get_uclass_priv(bus);
+ int node = dev_of_offset(bus);
struct udevice *clkdev;
fdt_addr_t addr;
fdt_size_t size;
int ret;
debug("%s: %d, bus: %i\n", __func__, __LINE__, bus->seq);
- addr = fdtdec_get_addr_size(gd->fdt_blob, bus->of_offset, "reg", &size);
+ addr = fdtdec_get_addr_size(gd->fdt_blob, node, "reg", &size);
if (addr == FDT_ADDR_T_NONE)
return -EINVAL;
@@ -391,8 +392,8 @@
if (!priv->regs)
return -EINVAL;
- dm_spi->max_hz = fdtdec_get_int(gd->fdt_blob, bus->of_offset,
- "spi-max-frequency", 250000000);
+ dm_spi->max_hz = fdtdec_get_int(gd->fdt_blob, node, "spi-max-frequency",
+ 250000000);
/* get clock rate */
ret = clk_get_by_index(bus, 0, &clkdev);
if (ret < 0) {
@@ -413,8 +414,7 @@
* of the ongoing transfer. To avoid this sort of error we will drive
* /CS manually by toggling cs-gpio pins.
*/
- ret = gpio_request_by_name_nodev(gd->fdt_blob, bus->of_offset,
- "cs-gpios", 0,
+ ret = gpio_request_by_name_nodev(gd->fdt_blob, node, "cs-gpios", 0,
&priv->cs_gpio, GPIOD_IS_OUT);
if (ret) {
printf("pic32-spi: error, cs-gpios not found\n");