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mtd: rawnand: timings: Add mode information to the timings structure

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Convert the timings union into a structure containing the mode and the
actual values. The values are still a union in prevision of the
addition of the NVDDR modes.

Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
Link: https://lore.kernel.org/linux-mtd/20200428094302.14624-2-miquel.raynal@bootlin.com
This commit is contained in:
Miquel Raynal 2020-04-28 11:42:54 +02:00
parent 1617942a81
commit 83c411c29b
2 changed files with 13 additions and 3 deletions
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6
drivers/mtd/nand/raw/nand_timings.c
View file

@ -16,6 +16,7 @@ static const struct nand_data_interface onfi_sdr_timings[] = {
/* Mode 0 */
{
.type = NAND_SDR_IFACE,
.timings.mode = 0,
.timings.sdr = {
.tCCS_min = 500000,
.tR_max = 200000000,
@ -58,6 +59,7 @@ static const struct nand_data_interface onfi_sdr_timings[] = {
/* Mode 1 */
{
.type = NAND_SDR_IFACE,
.timings.mode = 1,
.timings.sdr = {
.tCCS_min = 500000,
.tR_max = 200000000,
@ -100,6 +102,7 @@ static const struct nand_data_interface onfi_sdr_timings[] = {
/* Mode 2 */
{
.type = NAND_SDR_IFACE,
.timings.mode = 2,
.timings.sdr = {
.tCCS_min = 500000,
.tR_max = 200000000,
@ -142,6 +145,7 @@ static const struct nand_data_interface onfi_sdr_timings[] = {
/* Mode 3 */
{
.type = NAND_SDR_IFACE,
.timings.mode = 3,
.timings.sdr = {
.tCCS_min = 500000,
.tR_max = 200000000,
@ -184,6 +188,7 @@ static const struct nand_data_interface onfi_sdr_timings[] = {
/* Mode 4 */
{
.type = NAND_SDR_IFACE,
.timings.mode = 4,
.timings.sdr = {
.tCCS_min = 500000,
.tR_max = 200000000,
@ -226,6 +231,7 @@ static const struct nand_data_interface onfi_sdr_timings[] = {
/* Mode 5 */
{
.type = NAND_SDR_IFACE,
.timings.mode = 5,
.timings.sdr = {
.tCCS_min = 500000,
.tR_max = 200000000,

10
include/linux/mtd/rawnand.h
View file

@ -491,13 +491,17 @@ enum nand_data_interface_type {
/**
* struct nand_data_interface - NAND interface timing
* @type: type of the timing
* @timings: The timing, type according to @type
* @timings: The timing information
* @timings.mode: Timing mode as defined in the specification
* @timings.sdr: Use it when @type is %NAND_SDR_IFACE.
*/
struct nand_data_interface {
enum nand_data_interface_type type;
union {
struct nand_sdr_timings sdr;
struct nand_timings {
unsigned int mode;
union {
struct nand_sdr_timings sdr;
};
} timings;
};