korg/linux
0
0
Fork 0
mirror of https://mirrors.bfsu.edu.cn/git/linux.git synced 2024-12-25 12:04:46 +08:00
Code Issues Packages Projects Releases Wiki Activity

mtd: rawnand: davinci: Stop doing iomem pointer <-> u32 conversions

Browse Source 
There is no point in doing this sort of conversion since we can
replace |= by += operations which are perfectly valid on pointers.

This is done in preparation of COMPILE_TEST addition to the NAND_DAVINCI
Kconfig entry, since building for x86 generates several warnings because
of inappropriate u32 <-> void * conversions (pointers are 64-bit large
on x86_64).

Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
This commit is contained in:
Boris Brezillon 2018-07-09 22:09:28 +02:00 committed by Miquel Raynal
parent 88a40e7dca
commit c5b76d8dd2
1 changed files with 10 additions and 13 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

23
drivers/mtd/nand/raw/davinci_nand.c
View File

@ -60,8 +60,7 @@ struct davinci_nand_info {
void __iomem *base;
void __iomem *vaddr;
uint32_t ioaddr;
uint32_t current_cs;
void __iomem *current_cs;
uint32_t mask_chipsel;
uint32_t mask_ale;
@ -102,17 +101,17 @@ 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;
void __iomem *addr = info->current_cs;
struct nand_chip *nand = mtd_to_nand(mtd);
/* Did the control lines change? */
if (ctrl & NAND_CTRL_CHANGE) {
if ((ctrl & NAND_CTRL_CLE) == NAND_CTRL_CLE)
addr |= info->mask_cle;
addr += info->mask_cle;
else if ((ctrl & NAND_CTRL_ALE) == NAND_CTRL_ALE)
addr |= info->mask_ale;
addr += info->mask_ale;
nand->IO_ADDR_W = (void __iomem __force *)addr;
nand->IO_ADDR_W = addr;
}
if (cmd != NAND_CMD_NONE)
@ -122,14 +121,14 @@ 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;
info->current_cs = info->vaddr;
/* maybe kick in a second chipselect */
if (chip > 0)
addr |= info->mask_chipsel;
info->current_cs = addr;
info->current_cs += info->mask_chipsel;
info->chip.IO_ADDR_W = (void __iomem __force *)addr;
info->chip.IO_ADDR_W = info->current_cs;
info->chip.IO_ADDR_R = info->chip.IO_ADDR_W;
}
@ -680,9 +679,7 @@ 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->current_cs = info->ioaddr;
info->current_cs = info->vaddr;
info->core_chipsel = pdata->core_chipsel;
info->mask_chipsel = pdata->mask_chipsel;