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| author | Jean-Jacques Hiblot <jjhiblot@ti.com> | 2020-09-24 10:04:10 +0530 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2020-09-30 11:55:22 -0400 |
| commit | ffb22f6b847d21b30831c91294ec21d6a5e80ed4 (patch) | |
| tree | c47b83505480d280dddb4b2ad2401df7268b11f8 /drivers/core | |
| parent | 88e6a60e4aeed2fec059e513572d191ce9387b07 (diff) | |
| download | u-boot-ffb22f6b847d21b30831c91294ec21d6a5e80ed4.tar.gz u-boot-ffb22f6b847d21b30831c91294ec21d6a5e80ed4.tar.bz2 u-boot-ffb22f6b847d21b30831c91294ec21d6a5e80ed4.zip | |
regmap: Add devm_regmap_init()
Most of new linux drivers are using managed-API to allocate resources. To
ease porting drivers from linux to U-Boot, introduce devm_regmap_init() as
a managed API to get a regmap from the device tree.
Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Pratyush Yadav <p.yadav@ti.com>
Diffstat (limited to 'drivers/core')
| -rw-r--r-- | drivers/core/regmap.c | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/drivers/core/regmap.c b/drivers/core/regmap.c index a67a237b88..74225361fd 100644 --- a/drivers/core/regmap.c +++ b/drivers/core/regmap.c @@ -14,7 +14,10 @@ #include <regmap.h> #include <asm/io.h> #include <dm/of_addr.h> +#include <dm/devres.h> #include <linux/ioport.h> +#include <linux/compat.h> +#include <linux/err.h> DECLARE_GLOBAL_DATA_PTR; @@ -228,6 +231,32 @@ err: return ret; } + +static void devm_regmap_release(struct udevice *dev, void *res) +{ + regmap_uninit(*(struct regmap **)res); +} + +struct regmap *devm_regmap_init(struct udevice *dev, + const struct regmap_bus *bus, + void *bus_context, + const struct regmap_config *config) +{ + int rc; + struct regmap **mapp; + + mapp = devres_alloc(devm_regmap_release, sizeof(struct regmap *), + __GFP_ZERO); + if (unlikely(!mapp)) + return ERR_PTR(-ENOMEM); + + rc = regmap_init_mem(dev_ofnode(dev), mapp); + if (rc) + return ERR_PTR(rc); + + devres_add(dev, mapp); + return *mapp; +} #endif void *regmap_get_range(struct regmap *map, unsigned int range_num) |