From: Sean Anderson <seanga2@gmail.com>
Date: Tue, 15 Sep 2020 14:44:51 +0000 (-0400)
Subject: nand: vybrid: Re-introduce vf610_nfc.dev
X-Git-Url: http://git.dujemihanovic.xyz/contact?a=commitdiff_plain;h=7f36806c9bd3c99e615456d04ee7480873d73a3b;p=u-boot.git

nand: vybrid: Re-introduce vf610_nfc.dev

This member was presumably dropped when this driver was converted from
Linux. However, it is still used in log statements during initialization.
This patch adds the member back. In addition, allocation of struct
vf610_nfc has been moved to the callers of vf610_nfc_nand_init. This allows
it to be allocated by DM (if it is being used) and for dev to be
initialized.

Signed-off-by: Sean Anderson <seanga2@gmail.com>
Tested-by: Patrick Delaunay <patrick.delaunay@st.com>
---

diff --git a/drivers/mtd/nand/raw/vf610_nfc.c b/drivers/mtd/nand/raw/vf610_nfc.c
index 52c8a94778..4e6fdc607f 100644
--- a/drivers/mtd/nand/raw/vf610_nfc.c
+++ b/drivers/mtd/nand/raw/vf610_nfc.c
@@ -152,6 +152,8 @@ enum vf610_nfc_alt_buf {
 
 struct vf610_nfc {
 	struct nand_chip chip;
+	/* NULL without CONFIG_NAND_VF610_NFC_DT */
+	struct udevice *dev;
 	void __iomem *regs;
 	uint buf_offset;
 	int write_sz;
@@ -631,11 +633,10 @@ struct vf610_nfc_config {
 	int flash_bbt;
 };
 
-static int vf610_nfc_nand_init(int devnum, void __iomem *addr)
+static int vf610_nfc_nand_init(struct vf610_nfc *nfc, int devnum)
 {
-	struct mtd_info *mtd;
-	struct nand_chip *chip;
-	struct vf610_nfc *nfc;
+	struct nand_chip *chip = &nfc->chip;
+	struct mtd_info *mtd = nand_to_mtd(chip);
 	int err = 0;
 	struct vf610_nfc_config cfg = {
 		.hardware_ecc = 1,
@@ -647,16 +648,6 @@ static int vf610_nfc_nand_init(int devnum, void __iomem *addr)
 		.flash_bbt = 1,
 	};
 
-	nfc = calloc(1, sizeof(*nfc));
-	if (!nfc) {
-		printf(KERN_ERR "%s: Memory exhausted!\n", __func__);
-		return -ENOMEM;
-	}
-
-	chip = &nfc->chip;
-	nfc->regs = addr;
-
-	mtd = nand_to_mtd(chip);
 	nand_set_controller_data(chip, nfc);
 
 	if (cfg.width == 16)
@@ -777,20 +768,23 @@ static const struct udevice_id vf610_nfc_dt_ids[] = {
 static int vf610_nfc_dt_probe(struct udevice *dev)
 {
 	struct resource res;
+	struct vf610_nfc *nfc = dev_get_priv(dev);
 	int ret;
 
 	ret = dev_read_resource(dev, 0, &res);
 	if (ret)
 		return ret;
 
-	return vf610_nfc_nand_init(0, devm_ioremap(dev, res.start,
-						   resource_size(&res)));
+	nfc->regs = devm_ioremap(dev, res.start, resource_size(&res));
+	nfc->dev = dev;
+	return vf610_nfc_nand_init(nfc, 0);
 }
 
 U_BOOT_DRIVER(vf610_nfc_dt) = {
 	.name = "vf610-nfc-dt",
 	.id = UCLASS_MTD,
 	.of_match = vf610_nfc_dt_ids,
+	.priv_auto_alloc_size = sizeof(struct vf610_nfc),
 	.probe = vf610_nfc_dt_probe,
 };
 
@@ -809,7 +803,17 @@ void board_nand_init(void)
 #else
 void board_nand_init(void)
 {
-	int err = vf610_nfc_nand_init(0, (void __iomem *)CONFIG_SYS_NAND_BASE);
+	int err;
+	struct vf610_nfc *nfc;
+
+	nfc = calloc(1, sizeof(*nfc));
+	if (!nfc) {
+		printf("%s: Out of memory\n", __func__);
+		return;
+	}
+
+	nfc->regs = (void __iomem *)CONFIG_SYS_NAND_BASE;
+	err = vf610_nfc_nand_init(nfc, 0);
 	if (err)
 		printf("VF610 NAND init failed (err %d)\n", err);
 }