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authorMaxime Ripard <maxime.ripard@free-electrons.com>2018-02-21 12:20:25 +0300
committerMark Brown <broonie@kernel.org>2018-02-26 14:05:44 +0300
commit31895662f9ba81e8ea9ef05abf8edcb29d4b9c18 (patch)
tree977da55be387cc63f74a29393193261cb082780c /include/linux/regmap.h
parent7928b2cbe55b2a410a0f5c1f154610059c57b1b2 (diff)
downloadlinux-31895662f9ba81e8ea9ef05abf8edcb29d4b9c18.tar.xz
regmap: mmio: Add function to attach a clock
regmap_init_mmio_clk allows to specify a clock that needs to be enabled while accessing the registers. However, that clock is retrieved through its clock ID, which means it will lookup that clock based on the current device that registers the regmap, and, in the DT case, will only look in that device OF node. This might be problematic if the clock to enable is stored in another node. Let's add a function that allows to attach a clock that has already been retrieved to a regmap in order to fix this. Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com> Signed-off-by: Mark Brown <broonie@kernel.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 6a3aeba40e9e..5f7ad0552c03 100644
--- a/include/linux/regmap.h
+++ b/include/linux/regmap.h
@@ -21,6 +21,7 @@
#include <linux/lockdep.h>
struct module;
+struct clk;
struct device;
struct i2c_client;
struct irq_domain;
@@ -905,6 +906,8 @@ bool regmap_ac97_default_volatile(struct device *dev, unsigned int reg);
__regmap_lockdep_wrapper(__devm_regmap_init_sdw, #config, \
sdw, config)
+int regmap_mmio_attach_clk(struct regmap *map, struct clk *clk);
+void regmap_mmio_detach_clk(struct regmap *map);
void regmap_exit(struct regmap *map);
int regmap_reinit_cache(struct regmap *map,
const struct regmap_config *config);