summaryrefslogtreecommitdiff
path: root/drivers/base/regmap/regmap.c
diff options
context:
space:
mode:
authorRichard Weinberger <richard@nod.at>2022-08-01 22:31:22 +0300
committerRichard Weinberger <richard@nod.at>2022-08-01 22:31:22 +0300
commit9661524b9b26a45ecb045d7d36f85e83d8021a86 (patch)
tree28d50d77a798e097fd2040fd6f8a6fd9bb5dea65 /drivers/base/regmap/regmap.c
parente8166841a6996ac837caa24ee0da9d3f1eaad7be (diff)
parentf8cd9f632f4415b1e8838bdca8ab42cfb37a6584 (diff)
downloadlinux-9661524b9b26a45ecb045d7d36f85e83d8021a86.tar.xz
Merge tag 'spi-nor/for-5.20' into mtd/next
SPI NOR core changes: - move SECT_4K_PMC flag out of the core as it's a vendor specific flag - s/addr_width/addr_nbytes: address width means the number of IO lines used for the address, whereas in the code it is used as the number of address bytes. - do not change nor->addr_nbytes at SFDP parsing time. At the SFDP parsing time we should not change members of struct spi_nor, but instead fill members of struct spi_nor_flash_parameters which could later on be used by the callers. - track flash's internal address mode so that we can use 4B opcodes together with opcodes that don't have a 4B opcode correspondent. SPI NOR manufacturer drivers changes: - esmt: Rename "f25l32qa" flash name to "f25l32qa-2s". - micron-st: Skip FSR reading if SPI controller does not support it to allow flashes that support FSR to work even when attached to such SPI controllers. - spansion: Add s25hl-t/s25hs-t IDs and fixups.
Diffstat (limited to 'drivers/base/regmap/regmap.c')
-rw-r--r--drivers/base/regmap/regmap.c15
1 files changed, 8 insertions, 7 deletions
diff --git a/drivers/base/regmap/regmap.c b/drivers/base/regmap/regmap.c
index 2221d9863831..c3517ccc3159 100644
--- a/drivers/base/regmap/regmap.c
+++ b/drivers/base/regmap/regmap.c
@@ -1880,8 +1880,7 @@ static int _regmap_raw_write_impl(struct regmap *map, unsigned int reg,
*/
bool regmap_can_raw_write(struct regmap *map)
{
- return map->bus && map->bus->write && map->format.format_val &&
- map->format.format_reg;
+ return map->write && map->format.format_val && map->format.format_reg;
}
EXPORT_SYMBOL_GPL(regmap_can_raw_write);
@@ -2155,10 +2154,9 @@ int regmap_noinc_write(struct regmap *map, unsigned int reg,
size_t write_len;
int ret;
- if (!map->bus)
- return -EINVAL;
- if (!map->bus->write)
+ if (!map->write)
return -ENOTSUPP;
+
if (val_len % map->format.val_bytes)
return -EINVAL;
if (!IS_ALIGNED(reg, map->reg_stride))
@@ -2278,7 +2276,7 @@ int regmap_bulk_write(struct regmap *map, unsigned int reg, const void *val,
* Some devices don't support bulk write, for them we have a series of
* single write operations.
*/
- if (!map->bus || !map->format.parse_inplace) {
+ if (!map->write || !map->format.parse_inplace) {
map->lock(map->lock_arg);
for (i = 0; i < val_count; i++) {
unsigned int ival;
@@ -2904,6 +2902,9 @@ int regmap_noinc_read(struct regmap *map, unsigned int reg,
size_t read_len;
int ret;
+ if (!map->read)
+ return -ENOTSUPP;
+
if (val_len % map->format.val_bytes)
return -EINVAL;
if (!IS_ALIGNED(reg, map->reg_stride))
@@ -3017,7 +3018,7 @@ int regmap_bulk_read(struct regmap *map, unsigned int reg, void *val,
if (val_count == 0)
return -EINVAL;
- if (map->format.parse_inplace && (vol || map->cache_type == REGCACHE_NONE)) {
+ if (map->read && map->format.parse_inplace && (vol || map->cache_type == REGCACHE_NONE)) {
ret = regmap_raw_read(map, reg, val, val_bytes * val_count);
if (ret != 0)
return ret;