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>

21 files changed, 31 insertions, 30 deletions

diff --git a/drivers/spi/cadence_qspi.c b/drivers/spi/cadence_qspi.c
index f16f90d..9a6e41f 100644
--- a/drivers/spi/cadence_qspi.c
+++ b/drivers/spi/cadence_qspi.c
@@ -282,7 +282,7 @@ static int cadence_spi_ofdata_to_platdata(struct udevice *bus)
 {
 	struct cadence_spi_platdata *plat = bus->platdata;
 	const void *blob = gd->fdt_blob;
-	int node = bus->of_offset;
+	int node = dev_of_offset(bus);
 	int subnode;
 	u32 data[4];
 	int ret;
diff --git a/drivers/spi/davinci_spi.c b/drivers/spi/davinci_spi.c
index 20aa99a..65d37b0 100644
--- a/drivers/spi/davinci_spi.c
+++ b/drivers/spi/davinci_spi.c
@@ -540,7 +540,7 @@ static int davinci_ofdata_to_platadata(struct udevice *bus)
 {
 	struct davinci_spi_slave *ds = dev_get_priv(bus);
 	const void *blob = gd->fdt_blob;
-	int node = bus->of_offset;
+	int node = dev_of_offset(bus);
 
 	ds->regs = dev_map_physmem(bus, sizeof(struct davinci_spi_regs));
 	if (!ds->regs) {
diff --git a/drivers/spi/designware_spi.c b/drivers/spi/designware_spi.c
index 24a6e98..9d5e29c 100644
--- a/drivers/spi/designware_spi.c
+++ b/drivers/spi/designware_spi.c
@@ -132,7 +132,7 @@ static int dw_spi_ofdata_to_platdata(struct udevice *bus)
 {
 	struct dw_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 dw_spi *)dev_get_addr(bus);
 
diff --git a/drivers/spi/exynos_spi.c b/drivers/spi/exynos_spi.c
index 44948c3..aa0784c 100644
--- a/drivers/spi/exynos_spi.c
+++ b/drivers/spi/exynos_spi.c
@@ -253,7 +253,7 @@ static int exynos_spi_ofdata_to_platdata(struct udevice *bus)
 {
 	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 *)dev_get_addr(bus);
 	plat->periph_id = pinmux_decode_periph_id(blob, node);
diff --git a/drivers/spi/fsl_dspi.c b/drivers/spi/fsl_dspi.c
index f213587..e09985e 100644
--- a/drivers/spi/fsl_dspi.c
+++ b/drivers/spi/fsl_dspi.c
@@ -646,7 +646,7 @@ static int fsl_dspi_ofdata_to_platdata(struct udevice *bus)
 	fdt_addr_t addr;
 	struct fsl_dspi_platdata *plat = bus->platdata;
 	const void *blob = gd->fdt_blob;
-	int node = bus->of_offset;
+	int node = dev_of_offset(bus);
 
 	if (fdtdec_get_bool(blob, node, "big-endian"))
 		plat->flags |= DSPI_FLAG_REGMAP_ENDIAN_BIG;
diff --git a/drivers/spi/fsl_qspi.c b/drivers/spi/fsl_qspi.c
index 4d378c2..b2a0583 100644
--- a/drivers/spi/fsl_qspi.c
+++ b/drivers/spi/fsl_qspi.c
@@ -1078,7 +1078,7 @@ static int fsl_qspi_ofdata_to_platdata(struct udevice *bus)
 	struct fdt_resource res_regs, res_mem;
 	struct fsl_qspi_platdata *plat = bus->platdata;
 	const void *blob = gd->fdt_blob;
-	int node = bus->of_offset;
+	int node = dev_of_offset(bus);
 	int ret, flash_num = 0, subnode;
 
 	if (fdtdec_get_bool(blob, node, "big-endian"))
diff --git a/drivers/spi/ich.c b/drivers/spi/ich.c
index caf0103..893fe33 100644
--- a/drivers/spi/ich.c
+++ b/drivers/spi/ich.c
@@ -658,14 +658,14 @@ static int ich_spi_child_pre_probe(struct udevice *dev)
 static int ich_spi_ofdata_to_platdata(struct udevice *dev)
 {
 	struct ich_spi_platdata *plat = dev_get_platdata(dev);
+	int node = dev_of_offset(dev);
 	int ret;
 
-	ret = fdt_node_check_compatible(gd->fdt_blob, dev->of_offset,
-					"intel,ich7-spi");
+	ret = fdt_node_check_compatible(gd->fdt_blob, node, "intel,ich7-spi");
 	if (ret == 0) {
 		plat->ich_version = ICHV_7;
 	} else {
-		ret = fdt_node_check_compatible(gd->fdt_blob, dev->of_offset,
+		ret = fdt_node_check_compatible(gd->fdt_blob, node,
 						"intel,ich9-spi");
 		if (ret == 0)
 			plat->ich_version = ICHV_9;
diff --git a/drivers/spi/mvebu_a3700_spi.c b/drivers/spi/mvebu_a3700_spi.c
index 7c58c36..ee847e4 100644
--- a/drivers/spi/mvebu_a3700_spi.c
+++ b/drivers/spi/mvebu_a3700_spi.c
@@ -261,9 +261,9 @@ static int mvebu_spi_ofdata_to_platdata(struct udevice *bus)
 	 * it should be used to read the input clock and the DT property
 	 * can be removed.
 	 */
-	plat->clock = fdtdec_get_int(gd->fdt_blob, bus->of_offset,
+	plat->clock = fdtdec_get_int(gd->fdt_blob, dev_of_offset(bus),
 				     "clock-frequency", 160000);
-	plat->frequency = fdtdec_get_int(gd->fdt_blob, bus->of_offset,
+	plat->frequency = fdtdec_get_int(gd->fdt_blob, dev_of_offset(bus),
 					 "spi-max-frequency", 40000);
 
 	return 0;
diff --git a/drivers/spi/omap3_spi.c b/drivers/spi/omap3_spi.c
index 60e9d6e..8a89450 100644
--- a/drivers/spi/omap3_spi.c
+++ b/drivers/spi/omap3_spi.c
@@ -627,7 +627,7 @@ static int omap3_spi_probe(struct udevice *dev)
 {
 	struct omap3_spi_priv *priv = dev_get_priv(dev);
 	const void *blob = gd->fdt_blob;
-	int node = dev->of_offset;
+	int node = dev_of_offset(dev);
 
 	struct omap2_mcspi_platform_config* data =
 		(struct omap2_mcspi_platform_config*)dev_get_driver_data(dev);
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 @@ static int pic32_spi_probe(struct udevice *bus)
 {
 	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 @@ static int pic32_spi_probe(struct udevice *bus)
 	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 @@ static int pic32_spi_probe(struct udevice *bus)
 	 * 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");
diff --git a/drivers/spi/rk_spi.c b/drivers/spi/rk_spi.c
index 15cf0bd..3e44f17 100644
--- a/drivers/spi/rk_spi.c
+++ b/drivers/spi/rk_spi.c
@@ -164,7 +164,7 @@ static int rockchip_spi_ofdata_to_platdata(struct udevice *bus)
 	struct rockchip_spi_platdata *plat = dev_get_platdata(bus);
 	struct rockchip_spi_priv *priv = dev_get_priv(bus);
 	const void *blob = gd->fdt_blob;
-	int node = bus->of_offset;
+	int node = dev_of_offset(bus);
 	int ret;
 
 	plat->base = dev_get_addr(bus);
diff --git a/drivers/spi/soft_spi.c b/drivers/spi/soft_spi.c
index d23dc81..1690cd7 100644
--- a/drivers/spi/soft_spi.c
+++ b/drivers/spi/soft_spi.c
@@ -202,7 +202,7 @@ static int soft_spi_ofdata_to_platdata(struct udevice *dev)
 {
 	struct soft_spi_platdata *plat = dev->platdata;
 	const void *blob = gd->fdt_blob;
-	int node = dev->of_offset;
+	int node = dev_of_offset(dev);
 
 	plat->spi_delay_us = fdtdec_get_int(blob, node, "spi-delay-us", 0);
 
diff --git a/drivers/spi/spi-uclass.c b/drivers/spi/spi-uclass.c
index 1ab5b75..ac17da0 100644
--- a/drivers/spi/spi-uclass.c
+++ b/drivers/spi/spi-uclass.c
@@ -113,10 +113,11 @@ static int spi_child_post_bind(struct udevice *dev)
 {
 	struct dm_spi_slave_platdata *plat = dev_get_parent_platdata(dev);
 
-	if (dev->of_offset == -1)
+	if (dev_of_offset(dev) == -1)
 		return 0;
 
-	return spi_slave_ofdata_to_platdata(gd->fdt_blob, dev->of_offset, plat);
+	return spi_slave_ofdata_to_platdata(gd->fdt_blob, dev_of_offset(dev),
+					    plat);
 }
 #endif
 
@@ -125,7 +126,7 @@ static int spi_post_probe(struct udevice *bus)
 #if !CONFIG_IS_ENABLED(OF_PLATDATA)
 	struct dm_spi_bus *spi = dev_get_uclass_priv(bus);
 
-	spi->max_hz = fdtdec_get_int(gd->fdt_blob, bus->of_offset,
+	spi->max_hz = fdtdec_get_int(gd->fdt_blob, dev_of_offset(bus),
 				     "spi-max-frequency", 0);
 #endif
 #if defined(CONFIG_NEEDS_MANUAL_RELOC)
diff --git a/drivers/spi/stm32_qspi.c b/drivers/spi/stm32_qspi.c
index 123a1f3..05358eb 100644
--- a/drivers/spi/stm32_qspi.c
+++ b/drivers/spi/stm32_qspi.c
@@ -411,7 +411,7 @@ static int stm32_qspi_ofdata_to_platdata(struct udevice *bus)
 	struct fdt_resource res_regs, res_mem;
 	struct stm32_qspi_platdata *plat = bus->platdata;
 	const void *blob = gd->fdt_blob;
-	int node = bus->of_offset;
+	int node = dev_of_offset(bus);
 	int ret;
 
 	ret = fdt_get_named_resource(blob, node, "reg", "reg-names",
diff --git a/drivers/spi/tegra114_spi.c b/drivers/spi/tegra114_spi.c
index 509afba..897409c 100644
--- a/drivers/spi/tegra114_spi.c
+++ b/drivers/spi/tegra114_spi.c
@@ -101,7 +101,7 @@ static int tegra114_spi_ofdata_to_platdata(struct udevice *bus)
 {
 	struct tegra_spi_platdata *plat = bus->platdata;
 	const void *blob = gd->fdt_blob;
-	int node = bus->of_offset;
+	int node = dev_of_offset(bus);
 
 	plat->base = dev_get_addr(bus);
 	plat->periph_id = clock_decode_periph_id(blob, node);
diff --git a/drivers/spi/tegra20_sflash.c b/drivers/spi/tegra20_sflash.c
index ce3a2d3..ecbf4c1 100644
--- a/drivers/spi/tegra20_sflash.c
+++ b/drivers/spi/tegra20_sflash.c
@@ -88,7 +88,7 @@ static int tegra20_sflash_ofdata_to_platdata(struct udevice *bus)
 {
 	struct tegra_spi_platdata *plat = bus->platdata;
 	const void *blob = gd->fdt_blob;
-	int node = bus->of_offset;
+	int node = dev_of_offset(bus);
 
 	plat->base = dev_get_addr(bus);
 	plat->periph_id = clock_decode_periph_id(blob, node);
diff --git a/drivers/spi/tegra20_slink.c b/drivers/spi/tegra20_slink.c
index e1da23b..1d99a1e 100644
--- a/drivers/spi/tegra20_slink.c
+++ b/drivers/spi/tegra20_slink.c
@@ -94,7 +94,7 @@ static int tegra30_spi_ofdata_to_platdata(struct udevice *bus)
 {
 	struct tegra_spi_platdata *plat = bus->platdata;
 	const void *blob = gd->fdt_blob;
-	int node = bus->of_offset;
+	int node = dev_of_offset(bus);
 
 	plat->base = dev_get_addr(bus);
 	plat->periph_id = clock_decode_periph_id(blob, node);
diff --git a/drivers/spi/tegra210_qspi.c b/drivers/spi/tegra210_qspi.c
index 026cff0..1e094cb 100644
--- a/drivers/spi/tegra210_qspi.c
+++ b/drivers/spi/tegra210_qspi.c
@@ -97,7 +97,7 @@ static int tegra210_qspi_ofdata_to_platdata(struct udevice *bus)
 {
 	struct tegra_spi_platdata *plat = bus->platdata;
 	const void *blob = gd->fdt_blob;
-	int node = bus->of_offset;
+	int node = dev_of_offset(bus);
 
 	plat->base = dev_get_addr(bus);
 	plat->periph_id = clock_decode_periph_id(blob, node);
diff --git a/drivers/spi/ti_qspi.c b/drivers/spi/ti_qspi.c
index 6f9f983..79955d7 100644
--- a/drivers/spi/ti_qspi.c
+++ b/drivers/spi/ti_qspi.c
@@ -553,7 +553,7 @@ static int ti_qspi_ofdata_to_platdata(struct udevice *bus)
 {
 	struct ti_qspi_priv *priv = dev_get_priv(bus);
 	const void *blob = gd->fdt_blob;
-	int node = bus->of_offset;
+	int node = dev_of_offset(bus);
 	fdt_addr_t addr;
 	void *mmap;
 
diff --git a/drivers/spi/zynq_qspi.c b/drivers/spi/zynq_qspi.c
index b98663c..255e02f 100644
--- a/drivers/spi/zynq_qspi.c
+++ b/drivers/spi/zynq_qspi.c
@@ -101,7 +101,7 @@ static int zynq_qspi_ofdata_to_platdata(struct udevice *bus)
 {
 	struct zynq_qspi_platdata *plat = bus->platdata;
 	const void *blob = gd->fdt_blob;
-	int node = bus->of_offset;
+	int node = dev_of_offset(bus);
 
 	plat->regs = (struct zynq_qspi_regs *)fdtdec_get_addr(blob,
 							      node, "reg");
diff --git a/drivers/spi/zynq_spi.c b/drivers/spi/zynq_spi.c
index 15ca271..5a9b1f0 100644
--- a/drivers/spi/zynq_spi.c
+++ b/drivers/spi/zynq_spi.c
@@ -71,7 +71,7 @@ static int zynq_spi_ofdata_to_platdata(struct udevice *bus)
 {
 	struct zynq_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 zynq_spi_regs *)dev_get_addr(bus);