The patch
regmap: add force_write option on _regmap_update_bits()
has been applied to the asoc tree at
git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git
All being well this means that it will be integrated into the linux-next tree (usually sometime in the next 24 hours) and sent to Linus during the next merge window (or sooner if it is a bug fix), however if problems are discovered then the patch may be dropped or reverted.
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If any updates are required or you are submitting further changes they should be sent as incremental updates against current git, existing patches will not be replaced.
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Thanks, Mark
From 7ff0589c7bff4ca31b255ac2028f633f14047762 Mon Sep 17 00:00:00 2001
From: Kuninori Morimoto kuninori.morimoto.gx@renesas.com Date: Tue, 16 Jun 2015 08:52:22 +0000 Subject: [PATCH] regmap: add force_write option on _regmap_update_bits()
Sometimes we want to write data even though it doesn't change value. Then, force_write option on _regmap_update_bits() helps this purpose.
Signed-off-by: Kuninori Morimoto kuninori.morimoto.gx@renesas.com Signed-off-by: Mark Brown broonie@kernel.org --- drivers/base/regmap/regmap.c | 16 ++++++++-------- 1 file changed, 8 insertions(+), 8 deletions(-)
diff --git a/drivers/base/regmap/regmap.c b/drivers/base/regmap/regmap.c index 7111d04f2621..69ec411ce722 100644 --- a/drivers/base/regmap/regmap.c +++ b/drivers/base/regmap/regmap.c @@ -34,7 +34,7 @@
static int _regmap_update_bits(struct regmap *map, unsigned int reg, unsigned int mask, unsigned int val, - bool *change); + bool *change, bool force_write);
static int _regmap_bus_reg_read(void *context, unsigned int reg, unsigned int *val); @@ -1178,7 +1178,7 @@ static int _regmap_select_page(struct regmap *map, unsigned int *reg, ret = _regmap_update_bits(map, range->selector_reg, range->selector_mask, win_page << range->selector_shift, - &page_chg); + &page_chg, false);
map->work_buf = orig_work_buf;
@@ -2327,7 +2327,7 @@ EXPORT_SYMBOL_GPL(regmap_bulk_read);
static int _regmap_update_bits(struct regmap *map, unsigned int reg, unsigned int mask, unsigned int val, - bool *change) + bool *change, bool force_write) { int ret; unsigned int tmp, orig; @@ -2339,7 +2339,7 @@ static int _regmap_update_bits(struct regmap *map, unsigned int reg, tmp = orig & ~mask; tmp |= val & mask;
- if (tmp != orig) { + if (force_write || (tmp != orig)) { ret = _regmap_write(map, reg, tmp); if (change) *change = true; @@ -2367,7 +2367,7 @@ int regmap_update_bits(struct regmap *map, unsigned int reg, int ret;
map->lock(map->lock_arg); - ret = _regmap_update_bits(map, reg, mask, val, NULL); + ret = _regmap_update_bits(map, reg, mask, val, NULL, false); map->unlock(map->lock_arg);
return ret; @@ -2398,7 +2398,7 @@ int regmap_update_bits_async(struct regmap *map, unsigned int reg,
map->async = true;
- ret = _regmap_update_bits(map, reg, mask, val, NULL); + ret = _regmap_update_bits(map, reg, mask, val, NULL, false);
map->async = false;
@@ -2427,7 +2427,7 @@ int regmap_update_bits_check(struct regmap *map, unsigned int reg, int ret;
map->lock(map->lock_arg); - ret = _regmap_update_bits(map, reg, mask, val, change); + ret = _regmap_update_bits(map, reg, mask, val, change, false); map->unlock(map->lock_arg); return ret; } @@ -2460,7 +2460,7 @@ int regmap_update_bits_check_async(struct regmap *map, unsigned int reg,
map->async = true;
- ret = _regmap_update_bits(map, reg, mask, val, change); + ret = _regmap_update_bits(map, reg, mask, val, change, false);
map->async = false;