mtd: nand: Add+use mtd_to/from_nand and nand_get/set_controller_data

These functions are part of the Linux 4.6 sync.  They are being added
before the main sync patch in order to make it easier to address the
issue across all NAND drivers (many/most of which do not closely track
their Linux counterparts) separately from other merge issues.

Signed-off-by: Scott Wood <oss@buserror.net>

1 files changed, 23 insertions, 23 deletions

diff --git a/drivers/mtd/nand/mxs_nand.c b/drivers/mtd/nand/mxs_nand.c
index b5bbd88..7053ff2 100644
--- a/drivers/mtd/nand/mxs_nand.c
+++ b/drivers/mtd/nand/mxs_nand.c
@@ -264,8 +264,8 @@ static int mxs_nand_wait_for_bch_complete(void)
  */
 static void mxs_nand_cmd_ctrl(struct mtd_info *mtd, int data, unsigned int ctrl)
 {
-	struct nand_chip *nand = mtd->priv;
-	struct mxs_nand_info *nand_info = nand->priv;
+	struct nand_chip *nand = mtd_to_nand(mtd);
+	struct mxs_nand_info *nand_info = nand_get_controller_data(nand);
 	struct mxs_dma_desc *d;
 	uint32_t channel = MXS_DMA_CHANNEL_AHB_APBH_GPMI0 + nand_info->cur_chip;
 	int ret;
@@ -343,8 +343,8 @@ static void mxs_nand_cmd_ctrl(struct mtd_info *mtd, int data, unsigned int ctrl)
  */
 static int mxs_nand_device_ready(struct mtd_info *mtd)
 {
-	struct nand_chip *chip = mtd->priv;
-	struct mxs_nand_info *nand_info = chip->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct mxs_nand_info *nand_info = nand_get_controller_data(chip);
 	struct mxs_gpmi_regs *gpmi_regs =
 		(struct mxs_gpmi_regs *)MXS_GPMI_BASE;
 	uint32_t tmp;
@@ -360,8 +360,8 @@ static int mxs_nand_device_ready(struct mtd_info *mtd)
  */
 static void mxs_nand_select_chip(struct mtd_info *mtd, int chip)
 {
-	struct nand_chip *nand = mtd->priv;
-	struct mxs_nand_info *nand_info = nand->priv;
+	struct nand_chip *nand = mtd_to_nand(mtd);
+	struct mxs_nand_info *nand_info = nand_get_controller_data(nand);
 
 	nand_info->cur_chip = chip;
 }
@@ -410,8 +410,8 @@ static void mxs_nand_swap_block_mark(struct mtd_info *mtd,
  */
 static void mxs_nand_read_buf(struct mtd_info *mtd, uint8_t *buf, int length)
 {
-	struct nand_chip *nand = mtd->priv;
-	struct mxs_nand_info *nand_info = nand->priv;
+	struct nand_chip *nand = mtd_to_nand(mtd);
+	struct mxs_nand_info *nand_info = nand_get_controller_data(nand);
 	struct mxs_dma_desc *d;
 	uint32_t channel = MXS_DMA_CHANNEL_AHB_APBH_GPMI0 + nand_info->cur_chip;
 	int ret;
@@ -494,8 +494,8 @@ rtn:
 static void mxs_nand_write_buf(struct mtd_info *mtd, const uint8_t *buf,
 				int length)
 {
-	struct nand_chip *nand = mtd->priv;
-	struct mxs_nand_info *nand_info = nand->priv;
+	struct nand_chip *nand = mtd_to_nand(mtd);
+	struct mxs_nand_info *nand_info = nand_get_controller_data(nand);
 	struct mxs_dma_desc *d;
 	uint32_t channel = MXS_DMA_CHANNEL_AHB_APBH_GPMI0 + nand_info->cur_chip;
 	int ret;
@@ -559,7 +559,7 @@ static int mxs_nand_ecc_read_page(struct mtd_info *mtd, struct nand_chip *nand,
 					uint8_t *buf, int oob_required,
 					int page)
 {
-	struct mxs_nand_info *nand_info = nand->priv;
+	struct mxs_nand_info *nand_info = nand_get_controller_data(nand);
 	struct mxs_dma_desc *d;
 	uint32_t channel = MXS_DMA_CHANNEL_AHB_APBH_GPMI0 + nand_info->cur_chip;
 	uint32_t corrected = 0, failed = 0;
@@ -709,7 +709,7 @@ static int mxs_nand_ecc_write_page(struct mtd_info *mtd,
 				struct nand_chip *nand, const uint8_t *buf,
 				int oob_required)
 {
-	struct mxs_nand_info *nand_info = nand->priv;
+	struct mxs_nand_info *nand_info = nand_get_controller_data(nand);
 	struct mxs_dma_desc *d;
 	uint32_t channel = MXS_DMA_CHANNEL_AHB_APBH_GPMI0 + nand_info->cur_chip;
 	int ret;
@@ -775,8 +775,8 @@ rtn:
 static int mxs_nand_hook_read_oob(struct mtd_info *mtd, loff_t from,
 					struct mtd_oob_ops *ops)
 {
-	struct nand_chip *chip = mtd->priv;
-	struct mxs_nand_info *nand_info = chip->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct mxs_nand_info *nand_info = nand_get_controller_data(chip);
 	int ret;
 
 	if (ops->mode == MTD_OPS_RAW)
@@ -800,8 +800,8 @@ static int mxs_nand_hook_read_oob(struct mtd_info *mtd, loff_t from,
 static int mxs_nand_hook_write_oob(struct mtd_info *mtd, loff_t to,
 					struct mtd_oob_ops *ops)
 {
-	struct nand_chip *chip = mtd->priv;
-	struct mxs_nand_info *nand_info = chip->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct mxs_nand_info *nand_info = nand_get_controller_data(chip);
 	int ret;
 
 	if (ops->mode == MTD_OPS_RAW)
@@ -824,8 +824,8 @@ static int mxs_nand_hook_write_oob(struct mtd_info *mtd, loff_t to,
  */
 static int mxs_nand_hook_block_markbad(struct mtd_info *mtd, loff_t ofs)
 {
-	struct nand_chip *chip = mtd->priv;
-	struct mxs_nand_info *nand_info = chip->priv;
+	struct nand_chip *chip = mtd_to_nand(mtd);
+	struct mxs_nand_info *nand_info = nand_get_controller_data(chip);
 	int ret;
 
 	nand_info->marking_block_bad = 1;
@@ -884,7 +884,7 @@ static int mxs_nand_hook_block_markbad(struct mtd_info *mtd, loff_t ofs)
 static int mxs_nand_ecc_read_oob(struct mtd_info *mtd, struct nand_chip *nand,
 				int page)
 {
-	struct mxs_nand_info *nand_info = nand->priv;
+	struct mxs_nand_info *nand_info = nand_get_controller_data(nand);
 
 	/*
 	 * First, fill in the OOB buffer. If we're doing a raw read, we need to
@@ -919,7 +919,7 @@ static int mxs_nand_ecc_read_oob(struct mtd_info *mtd, struct nand_chip *nand,
 static int mxs_nand_ecc_write_oob(struct mtd_info *mtd, struct nand_chip *nand,
 					int page)
 {
-	struct mxs_nand_info *nand_info = nand->priv;
+	struct mxs_nand_info *nand_info = nand_get_controller_data(nand);
 	uint8_t block_mark = 0;
 
 	/*
@@ -982,8 +982,8 @@ static int mxs_nand_block_bad(struct mtd_info *mtd, loff_t ofs, int getchip)
  */
 static int mxs_nand_scan_bbt(struct mtd_info *mtd)
 {
-	struct nand_chip *nand = mtd->priv;
-	struct mxs_nand_info *nand_info = nand->priv;
+	struct nand_chip *nand = mtd_to_nand(mtd);
+	struct mxs_nand_info *nand_info = nand_get_controller_data(nand);
 	struct mxs_bch_regs *bch_regs = (struct mxs_bch_regs *)MXS_BCH_BASE;
 	uint32_t tmp;
 
@@ -1175,7 +1175,7 @@ int board_nand_init(struct nand_chip *nand)
 
 	memset(&fake_ecc_layout, 0, sizeof(fake_ecc_layout));
 
-	nand->priv = nand_info;
+	nand_set_controller_data(nand, nand_info);
 	nand->options |= NAND_NO_SUBPAGE_WRITE;
 
 	nand->cmd_ctrl		= mxs_nand_cmd_ctrl;