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authorIngo Molnar <mingo@kernel.org>2012-04-13 09:50:21 +0200
committerIngo Molnar <mingo@kernel.org>2012-04-13 09:50:21 +0200
commit659c36fcda403013a01b85da07cf2d9711e6d6c7 (patch)
treeece2e7d0e2c19ea5a3d0ec172ad0b81a8a19021d /include/linux/regmap.h
parent9521d830b6341d1887dcfc2aebde23fbfa5f1473 (diff)
parent5a7ed29c7572d00a75e8c4529e30c5ac2ef82271 (diff)
Merge tag 'perf-core-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core
Fixes and improvements for perf/core: . Overhaul the tools/ makefiles, gluing them to the top level Makefile, from Borislav Petkov. . Move the UI files from tools/perf/util/ui/ to tools/perf/ui/. Also move the GTK+ browser to tools/perf/ui/gtk/, from Namhyung Kim. . Only fallback to sw cycles counter on ENOENT for the hw cycles, from Robert Richter . Trivial fixes from Robert Richter . Handle the autogenerated bison/flex files better, from Namhyung and Jiri Olsa. . Navigate jump instructions in the annotate browser, just press enter or ->, still needs support for a jump navigation history, i.e. to go back. . Search string in the annotate browser: same keys as vim: / forward n next backward/forward ? backward . Clarify number of events/samples in the report header, from Ashay Rane Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'include/linux/regmap.h')
-rw-r--r--include/linux/regmap.h134
1 files changed, 133 insertions, 1 deletions
diff --git a/include/linux/regmap.h b/include/linux/regmap.h
index eb93921cdd3..a90abb6bfa6 100644
--- a/include/linux/regmap.h
+++ b/include/linux/regmap.h
@@ -13,12 +13,13 @@
* published by the Free Software Foundation.
*/
-#include <linux/device.h>
#include <linux/list.h>
struct module;
+struct device;
struct i2c_client;
struct spi_device;
+struct regmap;
/* An enum of all the supported cache types */
enum regcache_type {
@@ -40,10 +41,13 @@ struct reg_default {
unsigned int def;
};
+#ifdef CONFIG_REGMAP
+
/**
* Configuration for the register map of a device.
*
* @reg_bits: Number of bits in a register address, mandatory.
+ * @pad_bits: Number of bits of padding between register and value.
* @val_bits: Number of bits in a register value, mandatory.
*
* @writeable_reg: Optional callback returning true if the register
@@ -74,6 +78,7 @@ struct reg_default {
*/
struct regmap_config {
int reg_bits;
+ int pad_bits;
int val_bits;
bool (*writeable_reg)(struct device *dev, unsigned int reg);
@@ -127,12 +132,22 @@ struct regmap *regmap_init_i2c(struct i2c_client *i2c,
struct regmap *regmap_init_spi(struct spi_device *dev,
const struct regmap_config *config);
+struct regmap *devm_regmap_init(struct device *dev,
+ const struct regmap_bus *bus,
+ const struct regmap_config *config);
+struct regmap *devm_regmap_init_i2c(struct i2c_client *i2c,
+ const struct regmap_config *config);
+struct regmap *devm_regmap_init_spi(struct spi_device *dev,
+ const struct regmap_config *config);
+
void regmap_exit(struct regmap *map);
int regmap_reinit_cache(struct regmap *map,
const struct regmap_config *config);
int regmap_write(struct regmap *map, unsigned int reg, unsigned int val);
int regmap_raw_write(struct regmap *map, unsigned int reg,
const void *val, size_t val_len);
+int regmap_bulk_write(struct regmap *map, unsigned int reg, const void *val,
+ size_t val_count);
int regmap_read(struct regmap *map, unsigned int reg, unsigned int *val);
int regmap_raw_read(struct regmap *map, unsigned int reg,
void *val, size_t val_len);
@@ -143,12 +158,18 @@ int regmap_update_bits(struct regmap *map, unsigned int reg,
int regmap_update_bits_check(struct regmap *map, unsigned int reg,
unsigned int mask, unsigned int val,
bool *change);
+int regmap_get_val_bytes(struct regmap *map);
int regcache_sync(struct regmap *map);
+int regcache_sync_region(struct regmap *map, unsigned int min,
+ unsigned int max);
void regcache_cache_only(struct regmap *map, bool enable);
void regcache_cache_bypass(struct regmap *map, bool enable);
void regcache_mark_dirty(struct regmap *map);
+int regmap_register_patch(struct regmap *map, const struct reg_default *regs,
+ int num_regs);
+
/**
* Description of an IRQ for the generic regmap irq_chip.
*
@@ -197,4 +218,115 @@ int regmap_add_irq_chip(struct regmap *map, int irq, int irq_flags,
void regmap_del_irq_chip(int irq, struct regmap_irq_chip_data *data);
int regmap_irq_chip_get_base(struct regmap_irq_chip_data *data);
+#else
+
+/*
+ * These stubs should only ever be called by generic code which has
+ * regmap based facilities, if they ever get called at runtime
+ * something is going wrong and something probably needs to select
+ * REGMAP.
+ */
+
+static inline int regmap_write(struct regmap *map, unsigned int reg,
+ unsigned int val)
+{
+ WARN_ONCE(1, "regmap API is disabled");
+ return -EINVAL;
+}
+
+static inline int regmap_raw_write(struct regmap *map, unsigned int reg,
+ const void *val, size_t val_len)
+{
+ WARN_ONCE(1, "regmap API is disabled");
+ return -EINVAL;
+}
+
+static inline int regmap_bulk_write(struct regmap *map, unsigned int reg,
+ const void *val, size_t val_count)
+{
+ WARN_ONCE(1, "regmap API is disabled");
+ return -EINVAL;
+}
+
+static inline int regmap_read(struct regmap *map, unsigned int reg,
+ unsigned int *val)
+{
+ WARN_ONCE(1, "regmap API is disabled");
+ return -EINVAL;
+}
+
+static inline int regmap_raw_read(struct regmap *map, unsigned int reg,
+ void *val, size_t val_len)
+{
+ WARN_ONCE(1, "regmap API is disabled");
+ return -EINVAL;
+}
+
+static inline int regmap_bulk_read(struct regmap *map, unsigned int reg,
+ void *val, size_t val_count)
+{
+ WARN_ONCE(1, "regmap API is disabled");
+ return -EINVAL;
+}
+
+static inline int regmap_update_bits(struct regmap *map, unsigned int reg,
+ unsigned int mask, unsigned int val)
+{
+ WARN_ONCE(1, "regmap API is disabled");
+ return -EINVAL;
+}
+
+static inline int regmap_update_bits_check(struct regmap *map,
+ unsigned int reg,
+ unsigned int mask, unsigned int val,
+ bool *change)
+{
+ WARN_ONCE(1, "regmap API is disabled");
+ return -EINVAL;
+}
+
+static inline int regmap_get_val_bytes(struct regmap *map)
+{
+ WARN_ONCE(1, "regmap API is disabled");
+ return -EINVAL;
+}
+
+static inline int regcache_sync(struct regmap *map)
+{
+ WARN_ONCE(1, "regmap API is disabled");
+ return -EINVAL;
+}
+
+static inline int regcache_sync_region(struct regmap *map, unsigned int min,
+ unsigned int max)
+{
+ WARN_ONCE(1, "regmap API is disabled");
+ return -EINVAL;
+}
+
+static inline void regcache_cache_only(struct regmap *map, bool enable)
+{
+ WARN_ONCE(1, "regmap API is disabled");
+}
+
+static inline void regcache_cache_bypass(struct regmap *map, bool enable)
+{
+ WARN_ONCE(1, "regmap API is disabled");
+}
+
+static inline void regcache_mark_dirty(struct regmap *map)
+{
+ WARN_ONCE(1, "regmap API is disabled");
+}
+
+static inline int regmap_register_patch(struct regmap *map,
+ const struct reg_default *regs,
+ int num_regs)
+{
+ WARN_ONCE(1, "regmap API is disabled");
+ return -EINVAL;
+}
+
+#endif
+
#endif