[PATCH 1/2] regmap: cache: Step by stride in default sync.

[PATCH 1/2] regmap: cache: Step by stride in default sync.

[Dylan Reid]

The default sync operation was still assuming a stride of one, fix it
to respect the reg_stride set in the map.

Signed-off-by: Dylan Reid <dgreid@chromium.org>
---
 drivers/base/regmap/regcache.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/base/regmap/regcache.c b/drivers/base/regmap/regcache.c
index c6b1ac1..44af125 100644
--- a/drivers/base/regmap/regcache.c
+++ b/drivers/base/regmap/regcache.c
@@ -249,7 +249,7 @@ static int regcache_default_sync(struct regmap *map, unsigned int min,
 {
 	unsigned int reg;
 
-	for (reg = min; reg <= max; reg++) {
+	for (reg = min; reg <= max; reg += map->reg_stride) {
 		unsigned int val;
 		int ret;
 
-- 
1.8.1.3.605.g02339dd

[PATCH 2/2] regmap: cache: Don't attempt to sync non-writeable registers.

[Dylan Reid]

In the regcache_default_sync, if a register isn't writeable, then
_regmap_write will return an error and the rest of the sync will be
aborted.  Avoid this by checking if a register is writeable before
trying to sync it.

Signed-off-by: Dylan Reid <dgreid@chromium.org>
---
 drivers/base/regmap/regcache.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/base/regmap/regcache.c b/drivers/base/regmap/regcache.c
index 44af125..29b4128 100644
--- a/drivers/base/regmap/regcache.c
+++ b/drivers/base/regmap/regcache.c
@@ -253,7 +253,8 @@ static int regcache_default_sync(struct regmap *map, unsigned int min,
 		unsigned int val;
 		int ret;
 
-		if (regmap_volatile(map, reg))
+		if (regmap_volatile(map, reg) ||
+		    !regmap_writeable(map, reg))
 			continue;
 
 		ret = regcache_read(map, reg, &val);
-- 
1.8.1.3.605.g02339dd

Re: [PATCH 1/2] regmap: cache: Step by stride in default sync.

[Mark Brown]

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On Tue, Mar 18, 2014 at 01:45:08PM -0700, Dylan Reid wrote:
> The default sync operation was still assuming a stride of one, fix it
> to respect the reg_stride set in the map.

Applied, thanks.

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Re: [PATCH 2/2] regmap: cache: Don't attempt to sync non-writeable registers.

[Mark Brown]

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On Tue, Mar 18, 2014 at 01:45:09PM -0700, Dylan Reid wrote:
> In the regcache_default_sync, if a register isn't writeable, then
> _regmap_write will return an error and the rest of the sync will be
> aborted.  Avoid this by checking if a register is writeable before
> trying to sync it.

Applied, thanks.

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