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path: root/drivers/mtd/nand/raw/denali_dt.c
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Diffstat (limited to 'drivers/mtd/nand/raw/denali_dt.c')
-rw-r--r--drivers/mtd/nand/raw/denali_dt.c59
1 files changed, 5 insertions, 54 deletions
diff --git a/drivers/mtd/nand/raw/denali_dt.c b/drivers/mtd/nand/raw/denali_dt.c
index 5e14836f6bd5..8b779a899dcf 100644
--- a/drivers/mtd/nand/raw/denali_dt.c
+++ b/drivers/mtd/nand/raw/denali_dt.c
@@ -102,47 +102,6 @@ static int denali_dt_chip_init(struct denali_controller *denali,
return denali_chip_init(denali, dchip);
}
-/* Backward compatibility for old platforms */
-static int denali_dt_legacy_chip_init(struct denali_controller *denali)
-{
- struct denali_chip *dchip;
- int nsels, i;
-
- nsels = denali->nbanks;
-
- dchip = devm_kzalloc(denali->dev, struct_size(dchip, sels, nsels),
- GFP_KERNEL);
- if (!dchip)
- return -ENOMEM;
-
- dchip->nsels = nsels;
-
- for (i = 0; i < nsels; i++)
- dchip->sels[i].bank = i;
-
- nand_set_flash_node(&dchip->chip, denali->dev->of_node);
-
- return denali_chip_init(denali, dchip);
-}
-
-/*
- * Check the DT binding.
- * The new binding expects chip subnodes in the controller node.
- * So, #address-cells = <1>; #size-cells = <0>; are required.
- * Check the #size-cells to distinguish the binding.
- */
-static bool denali_dt_is_legacy_binding(struct device_node *np)
-{
- u32 cells;
- int ret;
-
- ret = of_property_read_u32(np, "#size-cells", &cells);
- if (ret)
- return true;
-
- return cells != 0;
-}
-
static int denali_dt_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
@@ -167,10 +126,8 @@ static int denali_dt_probe(struct platform_device *pdev)
denali->dev = dev;
denali->irq = platform_get_irq(pdev, 0);
- if (denali->irq < 0) {
- dev_err(dev, "no irq defined\n");
+ if (denali->irq < 0)
return denali->irq;
- }
res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "denali_reg");
denali->reg = devm_ioremap_resource(dev, res);
@@ -213,17 +170,11 @@ static int denali_dt_probe(struct platform_device *pdev)
if (ret)
goto out_disable_clk_ecc;
- if (denali_dt_is_legacy_binding(dev->of_node)) {
- ret = denali_dt_legacy_chip_init(denali);
- if (ret)
+ for_each_child_of_node(dev->of_node, np) {
+ ret = denali_dt_chip_init(denali, np);
+ if (ret) {
+ of_node_put(np);
goto out_remove_denali;
- } else {
- for_each_child_of_node(dev->of_node, np) {
- ret = denali_dt_chip_init(denali, np);
- if (ret) {
- of_node_put(np);
- goto out_remove_denali;
- }
}
}