mtd: atmel_nand: don't map the ROM table if no pmecc table offset in DT

if atmel,pmecc-lookup-table-offset is not found in DT node, we don't need to map the ROM table as we will build a runtime gf table anyway. Reported-by: Nicolas Ferre <[email protected]> Signed-off-by: Josh Wu <[email protected]> Acked-by: Nicolas Ferre <[email protected]> Signed-off-by: Brian Norris <[email protected]>
kyagi · Apr 6, 2015 · 41c7540 · 41c7540
1 parent 477478a
commit 41c7540
Showing 1 changed file with 7 additions and 7 deletions.
diff --git a/drivers/mtd/nand/atmel_nand.c b/drivers/mtd/nand/atmel_nand.c
@@ -1204,14 +1204,14 @@ static int atmel_pmecc_nand_init_params(struct platform_device *pdev,
 		goto err;
 	}
 
-	regs_rom = platform_get_resource(pdev, IORESOURCE_MEM, 3);
-	host->pmecc_rom_base = devm_ioremap_resource(&pdev->dev, regs_rom);
-	if (IS_ERR(host->pmecc_rom_base)) {
-		if (!host->has_no_lookup_table)
-			/* Don't display the information again */
+	if (!host->has_no_lookup_table) {
+		regs_rom = platform_get_resource(pdev, IORESOURCE_MEM, 3);
+		host->pmecc_rom_base = devm_ioremap_resource(&pdev->dev,
+								regs_rom);
+		if (IS_ERR(host->pmecc_rom_base)) {
 			dev_err(host->dev, "Can not get I/O resource for ROM, will build a lookup table in runtime!\n");
-
-		host->has_no_lookup_table = true;
+			host->has_no_lookup_table = true;
+		}
 	}
 
 	if (host->has_no_lookup_table) {