mtd: nand: omap: Use gpmc_omap_get_nand_ops() to get NAND registers

Deprecate nand register passing via platform data and use
gpmc_omap_get_nand_ops() instead.

Signed-off-by: Roger Quadros <rogerq@ti.com>
Acked-by: Brian Norris <computersforpeace@gmail.com>
Acked-by: Tony Lindgren <tony@atomide.com>

arch/arm/mach-omap2/gpmc-nand.c

@@ -121,8 +121,6 @@ int gpmc_nand_init(struct omap_nand_platform_data *gpmc_nand_data,
 	if (err < 0)
 		goto out_free_cs;
 
-	gpmc_update_nand_reg(&gpmc_nand_data->reg, gpmc_nand_data->cs);
-
 	if (!gpmc_hwecc_bch_capable(gpmc_nand_data->ecc_opt)) {
 		pr_err("omap2-nand: Unsupported NAND ECC scheme selected\n");
 		err = -EINVAL;

drivers/mtd/nand/omap2.c

@@ -28,6 +28,7 @@
 #include <linux/mtd/nand_bch.h>
 #include <linux/platform_data/elm.h>
 
+#include <linux/omap-gpmc.h>
 #include <linux/platform_data/mtd-nand-omap2.h>
 
 #define	DRIVER_NAME	"omap2-nand"
@@ -168,7 +169,9 @@ struct omap_nand_info {
 	} iomode;
 	u_char				*buf;
 	int					buf_len;
+	/* Interface to GPMC */
 	struct gpmc_nand_regs		reg;
+	struct gpmc_nand_ops		*ops;
 	/* generated at runtime depending on ECC algorithm and layout selected */
 	struct nand_ecclayout		oobinfo;
 	/* fields specific for BCHx_HW ECC scheme */
@@ -1665,9 +1668,13 @@ static int omap_nand_probe(struct platform_device *pdev)
 
 	platform_set_drvdata(pdev, info);
 
+	info->ops = gpmc_omap_get_nand_ops(&info->reg, info->gpmc_cs);
+	if (!info->ops) {
+		dev_err(&pdev->dev, "Failed to get GPMC->NAND interface\n");
+		return -ENODEV;
+	}
 	info->pdev		= pdev;
 	info->gpmc_cs		= pdata->cs;
-	info->reg		= pdata->reg;
 	info->of_node		= pdata->of_node;
 	info->ecc_opt		= pdata->ecc_opt;
 	nand_chip		= &info->nand;

include/linux/platform_data/mtd-nand-omap2.h

@@ -75,10 +75,12 @@ struct omap_nand_platform_data {
 	enum nand_io		xfer_type;
 	int			devsize;
 	enum omap_ecc           ecc_opt;
-	struct gpmc_nand_regs	reg;
 
 	/* for passing the partitions */
 	struct device_node	*of_node;
 	struct device_node	*elm_of_node;
+
+	/* deprecated */
+	struct gpmc_nand_regs	reg;
 };
 #endif