mtd: nand: Sync with Linux v4.6

[oweals/u-boot.git] / drivers / mtd / nand / mxs_nand.c

diff --git a/drivers/mtd/nand/mxs_nand.c b/drivers/mtd/nand/mxs_nand.c
index ba019a07638917c4578059057a571d04de9174fd..7be1f86bc2b3d3bc795b92bcb6ac54c9475cef17 100644 (file)
--- 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;
@@ -707,9 +707,9 @@ rtn:
  */
 static int mxs_nand_ecc_write_page(struct mtd_info *mtd,
                                struct nand_chip *nand, const uint8_t *buf,
-                               int oob_required)
+                               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;
        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;
 
        /*
@@ -961,7 +961,7 @@ static int mxs_nand_ecc_write_oob(struct mtd_info *mtd, struct nand_chip *nand,
  * Thus, this function is only called when we want *all* blocks to look good,
  * so it *always* return success.
  */
-static int mxs_nand_block_bad(struct mtd_info *mtd, loff_t ofs, int getchip)
+static int mxs_nand_block_bad(struct mtd_info *mtd, loff_t ofs)
 {
        return 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;
 
@@ -1090,24 +1090,29 @@ int mxs_nand_init(struct mxs_nand_info *info)
                (struct mxs_gpmi_regs *)MXS_GPMI_BASE;
        struct mxs_bch_regs *bch_regs =
                (struct mxs_bch_regs *)MXS_BCH_BASE;
-       int i = 0, j;
+       int i = 0, j, ret = 0;
 
        info->desc = malloc(sizeof(struct mxs_dma_desc *) *
                                MXS_NAND_DMA_DESCRIPTOR_COUNT);
-       if (!info->desc)
+       if (!info->desc) {
+               ret = -ENOMEM;
                goto err1;
+       }
 
        /* Allocate the DMA descriptors. */
        for (i = 0; i < MXS_NAND_DMA_DESCRIPTOR_COUNT; i++) {
                info->desc[i] = mxs_dma_desc_alloc();
-               if (!info->desc[i])
+               if (!info->desc[i]) {
+                       ret = -ENOMEM;
                        goto err2;
+               }
        }
 
        /* Init the DMA controller. */
        for (j = MXS_DMA_CHANNEL_AHB_APBH_GPMI0;
                j <= MXS_DMA_CHANNEL_AHB_APBH_GPMI7; j++) {
-               if (mxs_dma_init_channel(j))
+               ret = mxs_dma_init_channel(j);
+               if (ret)
                        goto err3;
        }
 
@@ -1127,15 +1132,16 @@ int mxs_nand_init(struct mxs_nand_info *info)
        return 0;
 
 err3:
-       for (--j; j >= 0; j--)
+       for (--j; j >= MXS_DMA_CHANNEL_AHB_APBH_GPMI0; j--)
                mxs_dma_release(j);
 err2:
-       free(info->desc);
-err1:
        for (--i; i >= 0; i--)
                mxs_dma_desc_free(info->desc[i]);
-       printf("MXS NAND: Unable to allocate DMA descriptors\n");
-       return -ENOMEM;
+       free(info->desc);
+err1:
+       if (ret == -ENOMEM)
+               printf("MXS NAND: Unable to allocate DMA descriptors\n");
+       return ret;
 }
 
 /*!
@@ -1169,7 +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;