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authorMark Brown <broonie@kernel.org>2015-10-12 21:24:30 +0300
committerMark Brown <broonie@kernel.org>2015-10-12 21:24:30 +0300
commitb3961e8703cbacf45116aea44f0c1cdaf8c8b40c (patch)
tree60affcbdc811a4c6af887659012aa95982e1b9e7 /include/linux/regmap.h
parentba5890a0c7576776ada71a21d95833a2281695e2 (diff)
parent77792b11409c9270d98e604b4314b85ce886ac7d (diff)
downloadlinux-b3961e8703cbacf45116aea44f0c1cdaf8c8b40c.tar.xz
Merge tag 'regmap-offload-update-bits' into regmap-next
regmap: Allow buses to provide a custom update_bits() operation Some buses provide a native _update_bits() operation which for uncached registers is faster than doing a read/modify/write cycle as it is a single bus transaction. Add support for implementing this to regmap. # gpg: Signature made Tue 06 Oct 2015 16:21:47 BST using RSA key ID 5D5487D0 # gpg: Oops: keyid_from_fingerprint: no pubkey # gpg: Oops: keyid_from_fingerprint: no pubkey # gpg: key 00000000 occurs more than once in the trustdb # gpg: key 16005C11: no public key for trusted key - skipped # gpg: key 16005C11 marked as ultimately trusted # gpg: Good signature from "Mark Brown <broonie@sirena.org.uk>" # gpg: aka "Mark Brown <broonie@debian.org>" # gpg: aka "Mark Brown <broonie@kernel.org>" # gpg: aka "Mark Brown <broonie@tardis.ed.ac.uk>" # gpg: aka "Mark Brown <broonie@linaro.org>" # gpg: aka "Mark Brown <Mark.Brown@linaro.org>"
Diffstat (limited to 'include/linux/regmap.h')
-rw-r--r--include/linux/regmap.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/regmap.h b/include/linux/regmap.h
index f36c9f96d32d..413e5ccce759 100644
--- a/include/linux/regmap.h
+++ b/include/linux/regmap.h
@@ -296,6 +296,8 @@ typedef int (*regmap_hw_reg_read)(void *context, unsigned int reg,
unsigned int *val);
typedef int (*regmap_hw_reg_write)(void *context, unsigned int reg,
unsigned int val);
+typedef int (*regmap_hw_reg_update_bits)(void *context, unsigned int reg,
+ unsigned int mask, unsigned int val);
typedef struct regmap_async *(*regmap_hw_async_alloc)(void);
typedef void (*regmap_hw_free_context)(void *context);
@@ -335,6 +337,7 @@ struct regmap_bus {
regmap_hw_gather_write gather_write;
regmap_hw_async_write async_write;
regmap_hw_reg_write reg_write;
+ regmap_hw_reg_update_bits reg_update_bits;
regmap_hw_read read;
regmap_hw_reg_read reg_read;
regmap_hw_free_context free_context;