mtd: nand: Sync with Linux v4.6
Updates the NAND code to match Linux v4.6. The previous sync was from
Linux v4.1 in commit d3963721d93fafa.
Note that none of the individual NAND drivers tracked Linux closely
enough to be synced themselves, other than manually applying a few
cross-tree changes.
Signed-off-by: Scott Wood <oss@buserror.net>
Tested-by: Heiko Schocher <hs@denx.de>
diff --git a/drivers/mtd/nand/denali.c b/drivers/mtd/nand/denali.c
index 3ae7545..601e744 100644
--- a/drivers/mtd/nand/denali.c
+++ b/drivers/mtd/nand/denali.c
@@ -48,8 +48,10 @@
* this macro allows us to convert from an MTD structure to our own
* device context (denali) structure.
*/
-#define mtd_to_denali(m) \
- container_of(mtd_to_nand(m), struct denali_nand_info, nand)
+static inline struct denali_nand_info *mtd_to_denali(struct mtd_info *mtd)
+{
+ return container_of(mtd_to_nand(mtd), struct denali_nand_info, nand);
+}
/*
* These constants are defined by the driver to enable common driver
@@ -866,8 +868,7 @@
* by write_page above.
*/
static int denali_write_page(struct mtd_info *mtd, struct nand_chip *chip,
- const uint8_t *buf, int oob_required,
- int page)
+ const uint8_t *buf, int oob_required, int page)
{
struct denali_nand_info *denali = mtd_to_denali(mtd);
@@ -891,8 +892,8 @@
* write_page() function above.
*/
static int denali_write_page_raw(struct mtd_info *mtd, struct nand_chip *chip,
- const uint8_t *buf, int oob_required,
- int page)
+ const uint8_t *buf, int oob_required,
+ int page)
{
struct denali_nand_info *denali = mtd_to_denali(mtd);
@@ -991,7 +992,7 @@
debug(" ECC error cause by erased block\n");
/* false alarm, return the 0xFF */
} else {
- return -EIO;
+ return -EBADMSG;
}
}
memcpy(buf, denali->buf.dma_buf, mtd->writesize);
@@ -1176,12 +1177,13 @@
static int denali_init(struct denali_nand_info *denali)
{
+ struct mtd_info *mtd = nand_to_mtd(&denali->nand);
int ret;
denali_hw_init(denali);
- denali->mtd->name = "denali-nand";
- denali->mtd->owner = THIS_MODULE;
+ mtd->name = "denali-nand";
+ mtd->owner = THIS_MODULE;
/* register the driver with the NAND core subsystem */
denali->nand.select_chip = denali_select_chip;
@@ -1195,7 +1197,7 @@
* this is the first stage in a two step process to register
* with the nand subsystem
*/
- if (nand_scan_ident(denali->mtd, denali->max_banks, NULL)) {
+ if (nand_scan_ident(mtd, denali->max_banks, NULL)) {
ret = -ENXIO;
goto fail;
}
@@ -1241,13 +1243,13 @@
nand_oob.eccbytes = denali->nand.ecc.bytes;
denali->nand.ecc.layout = &nand_oob;
- writel(denali->mtd->erasesize / denali->mtd->writesize,
+ writel(mtd->erasesize / mtd->writesize,
denali->flash_reg + PAGES_PER_BLOCK);
writel(denali->nand.options & NAND_BUSWIDTH_16 ? 1 : 0,
denali->flash_reg + DEVICE_WIDTH);
- writel(denali->mtd->writesize,
+ writel(mtd->writesize,
denali->flash_reg + DEVICE_MAIN_AREA_SIZE);
- writel(denali->mtd->oobsize,
+ writel(mtd->oobsize,
denali->flash_reg + DEVICE_SPARE_AREA_SIZE);
if (readl(denali->flash_reg + DEVICES_CONNECTED) == 0)
writel(1, denali->flash_reg + DEVICES_CONNECTED);
@@ -1260,12 +1262,12 @@
denali->nand.ecc.read_oob = denali_read_oob;
denali->nand.ecc.write_oob = denali_write_oob;
- if (nand_scan_tail(denali->mtd)) {
+ if (nand_scan_tail(mtd)) {
ret = -ENXIO;
goto fail;
}
- ret = nand_register(0, denali->mtd);
+ ret = nand_register(0, mtd);
fail:
return ret;
@@ -1280,13 +1282,6 @@
return -ENOMEM;
/*
- * If CONFIG_SYS_NAND_SELF_INIT is defined, each driver is responsible
- * for instantiating struct nand_chip, while drivers/mtd/nand/nand.c
- * still provides a "struct mtd_info nand_info" instance.
- */
- denali->mtd = &denali->nand.mtd;
-
- /*
* In the future, these base addresses should be taken from
* Device Tree or platform data.
*/