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8 Commits

Author SHA1 Message Date
Guodong Xu
a8ea49d7f5 regulator: hi6421: Describe consumed platform device 
The hi6421-regulator driver consumes a similarly named platform device.
Adding that to the module device table, allows modprobe to locate this
driver once the device is created.

Signed-off-by: Guodong Xu <guodong.xu@linaro.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
 2017-06-07 20:25:49 +01:00
Baoyou Xie
ea2f7321a9 regulator: hi6421: mark hi6421_regulator_ldo_get_optimum_mode() static 
We get 1 warning when building kernel with W=1:
drivers/regulator/hi6421-regulator.c:480:14: warning: no previous prototype for
'hi6421_regulator_ldo_get_optimum_mode' [-Wmissing-prototypes]

In fact, this function is only used in the file in which it is
declared and don't need a declaration, but can be made static.
So this patch marks it 'static'.

Signed-off-by: Baoyou Xie <baoyou.xie@linaro.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Mark Brown <broonie@kernel.org>
 2016-09-01 20:54:29 +01:00
Wolfram Sang
6c794b2654 regulator: drop owner assignment from platform_drivers 
A platform_driver does not need to set an owner, it will be populated by the
driver core.

Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
 2014-10-20 16:21:29 +02:00
Axel Lin
5c5e417bc0 regulator: hi6421: Fix misleading comment 
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
 2014-09-06 14:48:53 +01:00
Axel Lin
97795e4da2 regulator: hi6421: Fix misleading comment 
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
 2014-09-05 11:33:37 +01:00
Axel Lin
8e820007ca regulator: hi6421: Remove unused fields from struct hi6421_regulator_info 
The valid_modes_mask and *dev are not used in this driver, remove them.
Current code uses devm_regulator_register, so we don't need *regulator in
hi6421_regulator_info. Use a local variable instead.

Also removes a few unnecessary inclusion of header files.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
 2014-08-21 09:49:57 -05:00
Guodong Xu
ea62f4dfe3 regulator: hi6421: style fix, else with a single return is not required 
style fix for warnings. 'else' with a single 'return' is usually not
required.

Signed-off-by: Guodong Xu <guodong.xu@linaro.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
 2014-08-19 10:37:20 -05:00
Guodong Xu
87ca186f7e regulator: add driver for hi6421 voltage regulator 
Add driver support for HiSilicon Hi6421 voltage regulators.

Two rules for regulator enabling are defined in hi6421 spec:
1) Between disable and enable of each regulator (LDOs or BUCKs), there must
   be a protection gap. Use @off_on_delay of regulator core to implement this.
2) No two regulators can be enabled at the same time. Use mutex in
   hi6421_regulator_pdata to ensure this. A protection gap of 100us is added
   into each LDO/BUCK's .enable_time.

Signed-off-by: Guodong Xu <guodong.xu@linaro.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
 2014-08-16 16:58:15 -05:00