aboutsummaryrefslogtreecommitdiff
path: root/Documentation/driver-api
diff options
context:
space:
mode:
authorBoris Brezillon <boris.brezillon@bootlin.com>2018-09-07 00:38:34 +0200
committerMiquel Raynal <miquel.raynal@bootlin.com>2018-10-03 11:12:25 +0200
commit82fc5099744e5f30cd8c9ee13075f28fb37e9518 (patch)
tree19fa15428ac6dbb8bc79bac579c9914b1e2010cb /Documentation/driver-api
parent4ae94025171608e0661372cf846e17d062cb9620 (diff)
downloadlinux-stericsson-82fc5099744e5f30cd8c9ee13075f28fb37e9518.tar.gz
mtd: rawnand: Create a legacy struct and move ->IO_ADDR_{R, W} there
We regularly have new NAND controller drivers that are making use of fields/hooks that we want to get rid of but can't because of all the legacy drivers that we might break if we do. So, instead of removing those fields/hooks, let's move them to a sub-struct which is clearly documented as deprecated. We start with the ->IO_ADDR_{R,W] fields. Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Diffstat (limited to 'Documentation/driver-api')
-rw-r--r--Documentation/driver-api/mtdnand.rst24
1 files changed, 12 insertions, 12 deletions
diff --git a/Documentation/driver-api/mtdnand.rst b/Documentation/driver-api/mtdnand.rst
index 5470a3d6bd9e..1d2403f1d8c5 100644
--- a/Documentation/driver-api/mtdnand.rst
+++ b/Documentation/driver-api/mtdnand.rst
@@ -180,10 +180,10 @@ by a chip select decoder.
{
struct nand_chip *this = mtd_to_nand(mtd);
switch(cmd){
- case NAND_CTL_SETCLE: this->IO_ADDR_W |= CLE_ADRR_BIT; break;
- case NAND_CTL_CLRCLE: this->IO_ADDR_W &= ~CLE_ADRR_BIT; break;
- case NAND_CTL_SETALE: this->IO_ADDR_W |= ALE_ADRR_BIT; break;
- case NAND_CTL_CLRALE: this->IO_ADDR_W &= ~ALE_ADRR_BIT; break;
+ case NAND_CTL_SETCLE: this->legacy.IO_ADDR_W |= CLE_ADRR_BIT; break;
+ case NAND_CTL_CLRCLE: this->legacy.IO_ADDR_W &= ~CLE_ADRR_BIT; break;
+ case NAND_CTL_SETALE: this->legacy.IO_ADDR_W |= ALE_ADRR_BIT; break;
+ case NAND_CTL_CLRALE: this->legacy.IO_ADDR_W &= ~ALE_ADRR_BIT; break;
}
}
@@ -235,8 +235,8 @@ necessary information about the device.
}
/* Set address of NAND IO lines */
- this->IO_ADDR_R = baseaddr;
- this->IO_ADDR_W = baseaddr;
+ this->legacy.IO_ADDR_R = baseaddr;
+ this->legacy.IO_ADDR_W = baseaddr;
/* Reference hardware control function */
this->hwcontrol = board_hwcontrol;
/* Set command delay time, see datasheet for correct value */
@@ -336,17 +336,17 @@ connected to an address decoder.
struct nand_chip *this = mtd_to_nand(mtd);
/* Deselect all chips */
- this->IO_ADDR_R &= ~BOARD_NAND_ADDR_MASK;
- this->IO_ADDR_W &= ~BOARD_NAND_ADDR_MASK;
+ this->legacy.IO_ADDR_R &= ~BOARD_NAND_ADDR_MASK;
+ this->legacy.IO_ADDR_W &= ~BOARD_NAND_ADDR_MASK;
switch (chip) {
case 0:
- this->IO_ADDR_R |= BOARD_NAND_ADDR_CHIP0;
- this->IO_ADDR_W |= BOARD_NAND_ADDR_CHIP0;
+ this->legacy.IO_ADDR_R |= BOARD_NAND_ADDR_CHIP0;
+ this->legacy.IO_ADDR_W |= BOARD_NAND_ADDR_CHIP0;
break;
....
case n:
- this->IO_ADDR_R |= BOARD_NAND_ADDR_CHIPn;
- this->IO_ADDR_W |= BOARD_NAND_ADDR_CHIPn;
+ this->legacy.IO_ADDR_R |= BOARD_NAND_ADDR_CHIPn;
+ this->legacy.IO_ADDR_W |= BOARD_NAND_ADDR_CHIPn;
break;
}
}