regmap: change regmap_init_mem() to take ofnode instead udevice

Currently, regmap_init_mem() takes a udevice. This requires the node
has already been associated with a device. It prevents syscon/regmap
from behaving like those in Linux.

Change the first argumenet to take a device node.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Acked-by: Neil Armstrong <narmstrong@baylibre.com>
Reviewed-by: Simon Glass <sjg@chromium.org>

arch/arm/mach-aspeed/ast2500/sdram_ast2500.c

@@ -391,7 +391,7 @@ static int ast2500_sdrammc_ofdata_to_platdata(struct udevice *dev)
 	struct regmap *map;
 	int ret;
 
-	ret = regmap_init_mem(dev, &map);
+	ret = regmap_init_mem(dev_ofnode(dev), &map);
 	if (ret)
 		return ret;
 

drivers/core/regmap.c

@@ -50,7 +50,7 @@ int regmap_init_mem_platdata(struct udevice *dev, fdt_val_t *reg, int count,
 	return 0;
 }
 #else
-int regmap_init_mem(struct udevice *dev, struct regmap **mapp)
+int regmap_init_mem(ofnode node, struct regmap **mapp)
 {
 	struct regmap_range *range;
 	struct regmap *map;
@@ -58,14 +58,13 @@ int regmap_init_mem(struct udevice *dev, struct regmap **mapp)
 	int addr_len, size_len, both_len;
 	int len;
 	int index;
-	ofnode node = dev_ofnode(dev);
 	struct resource r;
 
-	addr_len = dev_read_simple_addr_cells(dev->parent);
-	size_len = dev_read_simple_size_cells(dev->parent);
+	addr_len = ofnode_read_simple_addr_cells(ofnode_get_parent(node));
+	size_len = ofnode_read_simple_size_cells(ofnode_get_parent(node));
 	both_len = addr_len + size_len;
 
-	len = dev_read_size(dev, "reg");
+	len = ofnode_read_size(node, "reg");
 	if (len < 0)
 		return len;
 	len /= sizeof(fdt32_t);
@@ -86,7 +85,7 @@ int regmap_init_mem(struct udevice *dev, struct regmap **mapp)
 			range->size = r.end - r.start + 1;
 		} else {
 			range->start = fdtdec_get_addr_size_fixed(gd->fdt_blob,
-					dev_of_offset(dev), "reg", index,
+					ofnode_to_offset(node), "reg", index,
 					addr_len, size_len, &sz, true);
 			range->size = sz;
 		}

drivers/core/syscon-uclass.c

@@ -40,7 +40,7 @@ static int syscon_pre_probe(struct udevice *dev)
 	return regmap_init_mem_platdata(dev, plat->reg, ARRAY_SIZE(plat->reg),
 					&priv->regmap);
 #else
-	return regmap_init_mem(dev, &priv->regmap);
+	return regmap_init_mem(dev_ofnode(dev), &priv->regmap);
 #endif
 }
 

drivers/phy/meson-gxl-usb2.c

@@ -192,7 +192,7 @@ int meson_gxl_usb2_phy_probe(struct udevice *dev)
 	struct phy_meson_gxl_usb2_priv *priv = dev_get_priv(dev);
 	int ret;
 
-	ret = regmap_init_mem(dev, &priv->regmap);
+	ret = regmap_init_mem(dev_ofnode(dev), &priv->regmap);
 	if (ret)
 		return ret;
 

drivers/phy/meson-gxl-usb3.c

@@ -163,7 +163,7 @@ int meson_gxl_usb3_phy_probe(struct udevice *dev)
 	struct phy_meson_gxl_usb3_priv *priv = dev_get_priv(dev);
 	int ret;
 
-	ret = regmap_init_mem(dev, &priv->regmap);
+	ret = regmap_init_mem(dev_ofnode(dev), &priv->regmap);
 	if (ret)
 		return ret;
 	

drivers/ram/rockchip/dmc-rk3368.c

@@ -877,7 +877,7 @@ static int rk3368_dmc_ofdata_to_platdata(struct udevice *dev)
 #if !CONFIG_IS_ENABLED(OF_PLATDATA)
 	struct rk3368_sdram_params *plat = dev_get_platdata(dev);
 
-	ret = regmap_init_mem(dev, &plat->map);
+	ret = regmap_init_mem(dev_ofnode(dev), &plat->map);
 	if (ret)
 		return ret;
 #endif

drivers/ram/rockchip/sdram_rk3188.c

@@ -839,7 +839,7 @@ static int rk3188_dmc_ofdata_to_platdata(struct udevice *dev)
 		printf("%s: Cannot read rockchip,sdram-params\n", __func__);
 		return -EINVAL;
 	}
-	ret = regmap_init_mem(dev, &params->map);
+	ret = regmap_init_mem(dev_ofnode(dev), &params->map);
 	if (ret)
 		return ret;
 #endif

drivers/ram/rockchip/sdram_rk322x.c

@@ -743,7 +743,7 @@ static int rk322x_dmc_ofdata_to_platdata(struct udevice *dev)
 		printf("%s: Cannot read rockchip,sdram-params\n", __func__);
 		return -EINVAL;
 	}
-	ret = regmap_init_mem(dev, &params->map);
+	ret = regmap_init_mem(dev_ofnode(dev), &params->map);
 	if (ret)
 		return ret;
 #endif

drivers/ram/rockchip/sdram_rk3288.c

@@ -1000,7 +1000,7 @@ static int rk3288_dmc_ofdata_to_platdata(struct udevice *dev)
 
 	priv->is_veyron = !fdt_node_check_compatible(blob, 0, "google,veyron");
 #endif
-	ret = regmap_init_mem(dev, &params->map);
+	ret = regmap_init_mem(dev_ofnode(dev), &params->map);
 	if (ret)
 		return ret;
 #endif

drivers/ram/rockchip/sdram_rk3399.c

@@ -1098,7 +1098,7 @@ static int rk3399_dmc_ofdata_to_platdata(struct udevice *dev)
 		       __func__, ret);
 		return ret;
 	}
-	ret = regmap_init_mem(dev, &plat->map);
+	ret = regmap_init_mem(dev_ofnode(dev), &plat->map);
 	if (ret)
 		printf("%s: regmap failed %d\n", __func__, ret);
 

drivers/ram/stm32mp1/stm32mp1_ram.c

@@ -146,7 +146,7 @@ static int stm32mp1_ddr_probe(struct udevice *dev)
 	debug("STM32MP1 DDR probe\n");
 	priv->dev = dev;
 
-	ret = regmap_init_mem(dev, &map);
+	ret = regmap_init_mem(dev_ofnode(dev), &map);
 	if (ret)
 		return ret;
 

drivers/reset/reset-meson.c

@@ -76,7 +76,7 @@ static int meson_reset_probe(struct udevice *dev)
 {
 	struct meson_reset_priv *priv = dev_get_priv(dev);
 	
-	return regmap_init_mem(dev, &priv->regmap);
+	return regmap_init_mem(dev_ofnode(dev), &priv->regmap);
 }
 
 U_BOOT_DRIVER(meson_reset) = {

include/regmap.h

@@ -47,10 +47,10 @@ int regmap_read(struct regmap *map, uint offset, uint *valp);
  *
  * Use regmap_uninit() to free it.
  *
- * @dev:	Device that uses this map
+ * @node:	Device node that uses this map
  * @mapp:	Returns allocated map
  */
-int regmap_init_mem(struct udevice *dev, struct regmap **mapp);
+int regmap_init_mem(ofnode node, struct regmap **mapp);
 
 /**
  * regmap_init_mem_platdata() - Set up a new memory register map for of-platdata