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Subject[PATCH 1/3] mtd: rawnand: davinci: fix build testing on 64-bit
Date
Now that we can build this driver everywhere, we run into a couple
of warnings like:

drivers/mtd/nand/raw/davinci_nand.c: In function 'nand_davinci_correct_4bit':
drivers/mtd/nand/raw/davinci_nand.c:322:21: error: cast from pointer to integer of different size [-Werror=pointer-to-int-cast]

In all cases, this is harmless and we just need to cast to an uintptr_t
rather than an unsigned 32-bit integer.

Fixes: 347af8918e8a ("mtd: rawnand: davinci: Allow selection of this driver when COMPILE_TEST=y")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
drivers/mtd/nand/raw/davinci_nand.c | 16 ++++++++--------
1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/drivers/mtd/nand/raw/davinci_nand.c b/drivers/mtd/nand/raw/davinci_nand.c
index cd12e5abafde..c638bd60eb0b 100644
--- a/drivers/mtd/nand/raw/davinci_nand.c
+++ b/drivers/mtd/nand/raw/davinci_nand.c
@@ -102,7 +102,7 @@ static void nand_davinci_hwcontrol(struct mtd_info *mtd, int cmd,
unsigned int ctrl)
{
struct davinci_nand_info *info = to_davinci_nand(mtd);
- uint32_t addr = info->current_cs;
+ uintptr_t addr = info->current_cs;
struct nand_chip *nand = mtd_to_nand(mtd);

/* Did the control lines change? */
@@ -122,7 +122,7 @@ static void nand_davinci_hwcontrol(struct mtd_info *mtd, int cmd,
static void nand_davinci_select_chip(struct mtd_info *mtd, int chip)
{
struct davinci_nand_info *info = to_davinci_nand(mtd);
- uint32_t addr = info->ioaddr;
+ uintptr_t addr = info->ioaddr;

/* maybe kick in a second chipselect */
if (chip > 0)
@@ -319,7 +319,7 @@ static int nand_davinci_correct_4bit(struct mtd_info *mtd,
/* Unpack ten bytes into eight 10 bit values. We know we're
* little-endian, and use type punning for less shifting/masking.
*/
- if (WARN_ON(0x01 & (unsigned) ecc_code))
+ if (WARN_ON(0x01 & (uintptr_t)ecc_code))
return -EINVAL;
ecc16 = (unsigned short *)ecc_code;

@@ -441,9 +441,9 @@ static void nand_davinci_read_buf(struct mtd_info *mtd, uint8_t *buf, int len)
{
struct nand_chip *chip = mtd_to_nand(mtd);

- if ((0x03 & ((unsigned)buf)) == 0 && (0x03 & len) == 0)
+ if ((0x03 & ((uintptr_t)buf)) == 0 && (0x03 & len) == 0)
ioread32_rep(chip->IO_ADDR_R, buf, len >> 2);
- else if ((0x01 & ((unsigned)buf)) == 0 && (0x01 & len) == 0)
+ else if ((0x01 & ((uintptr_t)buf)) == 0 && (0x01 & len) == 0)
ioread16_rep(chip->IO_ADDR_R, buf, len >> 1);
else
ioread8_rep(chip->IO_ADDR_R, buf, len);
@@ -454,9 +454,9 @@ static void nand_davinci_write_buf(struct mtd_info *mtd,
{
struct nand_chip *chip = mtd_to_nand(mtd);

- if ((0x03 & ((unsigned)buf)) == 0 && (0x03 & len) == 0)
+ if ((0x03 & ((uintptr_t)buf)) == 0 && (0x03 & len) == 0)
iowrite32_rep(chip->IO_ADDR_R, buf, len >> 2);
- else if ((0x01 & ((unsigned)buf)) == 0 && (0x01 & len) == 0)
+ else if ((0x01 & ((uintptr_t)buf)) == 0 && (0x01 & len) == 0)
iowrite16_rep(chip->IO_ADDR_R, buf, len >> 1);
else
iowrite8_rep(chip->IO_ADDR_R, buf, len);
@@ -680,7 +680,7 @@ static int nand_davinci_probe(struct platform_device *pdev)
info->chip.bbt_md = pdata->bbt_md;
info->timing = pdata->timing;

- info->ioaddr = (uint32_t __force) vaddr;
+ info->ioaddr = (uintptr_t __force) vaddr;

info->current_cs = info->ioaddr;
info->core_chipsel = pdata->core_chipsel;
--
2.9.0
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