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2014-09-16regulator: fan53555: add devicetree supportHeiko Stuebner1-4/+46
Add the ability to parse regulator-data from the devicetree. Signed-off-by: Heiko Stuebner <heiko@sntech.de> Signed-off-by: Mark Brown <broonie@kernel.org>
2014-09-16regulator: rk808: Add function for ramp delay for buck1/buck2Doug Anderson1-2/+55
On rk808 buck1 and buck2 have programmable ramp delays. Let's add a function to allow a client of rk808 to set them. Signed-off-by: Doug Anderson <dianders@chromium.org> Signed-off-by: Mark Brown <broonie@kernel.org>
2014-09-16regulator: fan53555: use set_ramp_delay to set the ramp up slew rateHeiko Stuebner1-11/+42
The regulator constraints already provide a field for the ramp_delay, so there is no need to set this manually. Therefore implement the set_ramp_delay callback and convert the pdata value to the constraint value if necessary. Signed-off-by: Heiko Stuebner <heiko@sntech.de> Signed-off-by: Mark Brown <broonie@kernel.org>
2014-09-15regulator: fan53555: enable vin supplyHeiko Stuebner1-0/+1
The regulator can be supplied by a parent regulator through its vin pin, so add the supply_name for it. Signed-off-by: Heiko Stuebner <heiko@sntech.de> Signed-off-by: Mark Brown <broonie@kernel.org>
2014-09-12regulator: rk808: Fix missing of_node_putAxel Lin1-1/+2
1. Pass &pdev->dev rather than &client->dev to of_regulator_match, the *dev argument is used for devres to ensure devm_of_regulator_put_matches() will be called when unload the module. 2. of_get_child_by_name() returns a node pointer with refcount incremented. Thus add missing of_node_put(reg_np). Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2014-09-12regulator: rk808: Remove unused variablesAxel Lin1-26/+0
Also remove non-informative comment. Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2014-09-10regulator: of: Add stub OF match function for !OF caseMark Brown1-0/+10
Signed-off-by: Mark Brown <broonie@kernel.org>
2014-09-10regulator: isl9305: REGULATOR_ISL9305 needs to select REGMAP_I2CAxel Lin1-0/+1
Fix ERROR: "devm_regmap_init_i2c" [drivers/regulator/isl9305.ko] undefined! Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2014-09-10regulator: isl9305: Convert to new style DT parsingMark Brown1-51/+11
This removes some code and replaces it with data. Signed-off-by: Mark Brown <broonie@kernel.org>
2014-09-10Merge branch 'topic/of' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator into regulator-isl9305Mark Brown3-3/+62
2014-09-10regulator: tps65217: Use simplified DT parsingMark Brown1-77/+29
Remove a bunch of code in favour of data. Signed-off-by: Mark Brown <broonie@linaro.org>
2014-09-10Merge branch 'topic/of' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator into regulator-tps65217Mark Brown3-3/+62
2014-09-10regulator: of: Provide simplified DT parsing methodMark Brown3-3/+62
Currently regulator drivers which support DT all repeat very similar code to supply a list of known regulator identifiers to be matched with DT, convert that to platform data which is then matched up with the regulators as they are registered. This is both fiddly to get right and for devices which can use the standard helpers to provide their operations is the main source of code in the driver. Since this code is essentially identical for most drivers we can factor it out into the core, moving the identifiers in the match table into the regulator descriptors and also allowing drivers to pass in the name of the subnode to search. When a driver provides an of_match string for the regulator the core will attempt to use that to obtain init_data, allowing the driver to remove all explicit code for DT parsing and simply provide data instead. The current code leaks the phandles for the child nodes, this will be addressed incrementally and makes no practical difference for FDT anyway as the DT data structures are never freed. Signed-off-by: Mark Brown <broonie@linaro.org>
2014-09-10regulator: rk808: Remove pdata from the regulatorChris Zhong1-72/+17
Signed-off-by: Chris Zhong <zyw@rock-chips.com> Tested-by: Heiko Stuebner <heiko@sntech.de> Reviewed-by: Doug Anderson <dianders@chromium.org> Tested-by: Doug Anderson <dianders@chromium.org> Signed-off-by: Mark Brown <broonie@kernel.org>
2014-09-10regulator: remove unnecessary of_node_get() to parentGuodong Xu7-8/+7
These of_node_get() were added to balance refcount decrements inside of of_find_node_by_name(). See: commit c92f5dd2c42f ("regulator: Add missing of_node_put()") However of_find_node_by_name() was then replaced by of_get_child_by_name(), which doesn't call of_node_put() against its input parameter. So, need to remove these unnecessary of_node_get() calls. Signed-off-by: Guodong Xu <guodong.xu@linaro.org> Reviewed-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2014-09-09regulator: tps65217: Remove unused driver_data from of_match tableMark Brown1-7/+7
We don't ever reference the driver_data we supply so remove it. Signed-off-by: Mark Brown <broonie@linaro.org>
2014-09-07regulator: bcm590xx: Remove unused **info field from struct bcm590xx_regAxel Lin1-8/+0
Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Mark Brown <broonie@linaro.org>
2014-09-07regulator: as3711: Remove unused fields from as3711_regulator_info and as3711_regulatorAxel Lin1-33/+28
The max_uV is not used, so remove it from struct as3711_regulator_info. Current code is using devm_regulator_register(), so we don't need to store *rdev in struct as3711_regulator for clean up. Also clean up AS3711_REG macro to remove _vshift, _min_uV and _max_uV arguments. _vshift is always 0, so remove it. _min_uV and _max_uV are not required, all required settings are set in REGULATOR_LINEAR_RANGE macro. Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Mark Brown <broonie@linaro.org>
2014-09-06regulator: hi6421: Fix misleading commentAxel Lin1-3/+3
Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Mark Brown <broonie@linaro.org>
2014-09-06regulator: tps65217: Remove spurious platform data checkMark Brown1-6/+2
We should always be able to probe a regulator with no platform data. This will enable readback of current state, though no changes can be made to the device configuration. Signed-off-by: Mark Brown <broonie@kernel.org>
2014-09-06regulator: isl9305: Add Intersil ISL9305/H driverMark Brown3-0/+254
The ISL9305 and ISL9305H are mini-PMICs offering two DCDC regulators and two LDO regulators. While there are some register differences between them these do not affect the current Linux driver as the relevant features are not yet supported. Signed-off-by: Mark Brown <broonie@kernel.org>
2014-09-05regulator: da9211: Set of_match_table and export device tableAxel Lin1-14/+15
Also move da9211_i2c_id and da9211_dt_ids close to the user for better readability. Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2014-09-05regulator: max77802: Remove duplicate rdev_get_id() callAxel Lin1-2/+2
Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2014-09-05regulator: hi6421: Fix misleading commentAxel Lin1-1/+1
Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2014-09-03regulator: da9211: Fix missing config.of_node settingAxel Lin1-0/+1
Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2014-09-02regulator: RK808: Add proper input supplies for rk808Doug Anderson1-1/+14
The original RK808 regulator driver didn't setup input supplies properly. Add them. Signed-off-by: Doug Anderson <dianders@chromium.org> Signed-off-by: Mark Brown <broonie@kernel.org>
2014-09-02regulator: rk808: Fix n_voltages for DCDC4Axel Lin1-1/+1
The min_sel is 0, max_sel is 15, so n_voltages should be 16. Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2014-09-01regulator: max1586: of_get_max1586_platform_data() can be staticFengguang Wu1-1/+1
Signed-off-by: Fengguang Wu <fengguang.wu@intel.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2014-09-01regulator: max1586: add device-tree supportRobert Jarzmik1-2/+79
Add device-tree support to max1586. The driver can still be used with the legacy platform data, or the new device-tree way. This work is heavily inspired by the device-tree support of its cousin max8660 driver. Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr> Signed-off-by: Mark Brown <broonie@kernel.org>
2014-08-30regulator: rn5t618: add driver for Ricoh RN5T618 regulatorsBeniamino Galvani3-0/+150
This driver supports the 3 DCDC and 7 LDO regulators available on Ricoh RN5T618 PMIC. Signed-off-by: Beniamino Galvani <b.galvani@gmail.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2014-08-29regulator: da9211: fix coccinelle warningsFengguang Wu1-1/+1
drivers/regulator/da9211-regulator.c:281:2-3: Unneeded semicolon Removes unneeded semicolon. Generated by: scripts/coccinelle/misc/semicolon.cocci Signed-off-by: Fengguang Wu <fengguang.wu@intel.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2014-08-29regulator: core: Add REGULATOR_EVENT_PRE_VOLTAGE_CHANGE (and ABORT)Heiko Stübner1-7/+56
In some cases we need to know when a regulator is about to be changed. Add a way for clients to be notified. Note that for set_voltage() we don't necessarily know what voltage we'll end up with, so we tell the client what the range will be so they can prepare. Signed-off-by: Heiko Stübner <heiko@sntech.de> Signed-off-by: Doug Anderson <dianders@chromium.org> Signed-off-by: Mark Brown <broonie+linaro@kernel.org>
2014-08-28regulator: rk808: Fix memory leakAxel Lin1-1/+1
The memory allocated in rk808_regulator_probe() needs to be freed when the module is unloaded. Thus pass &pdev->dev rather than &client->dev to devm_kzalloc. Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Mark Brown <broonie@linaro.org>
2014-08-27regulator: max77802: set opmode to normal if off is read from hwJavier Martinez Canillas1-1/+11
The max77802 driver reads the default operating mode (opmode) set for regulators when enabled from the hardware registers. But if a regulator is disabled and the system warm restarted, the hardware reports OFF as the opmode so the regulator is not enabled. Default to operating mode NORMAL if OFF is read from the hardware register. Reported-by: Yuvaraj Cd <yuvaraj.lkml@gmail.com> Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk> Reviewed-by: Doug Anderson <dianders@chromium.org> Tested-by: Yuvaraj Kumar CD <yuvaraj.cd@samsung.com> Signed-off-by: Mark Brown <broonie@linaro.org>
2014-08-27regulator: da9211: support device treeJames Ban1-7/+78
This is a patch for supporting device tree of DA9211/DA9213. Signed-off-by: James Ban <james.ban.opensource@diasemi.com> Signed-off-by: Mark Brown <broonie@linaro.org>
2014-08-27regulator: rk808: remove redundant codeChris Zhong1-13/+4
remove the redundant code, since pdata has been removed from stuct rk808 Signed-off-by: Chris Zhong <zyw@rock-chips.com> Signed-off-by: Mark Brown <broonie@linaro.org>
2014-08-26regulator: RK808: modify for struct rk808 changeChris Zhong1-20/+14
The "dev" has been deleted from "struct rk808" in rk808 mfd driver so rk808->dev should be replaced by &client->dev here. Signed-off-by: Chris Zhong <zyw@rock-chips.com> Signed-off-by: Mark Brown <broonie@linaro.org>
2014-08-21regulator: rk808: Fix uninitialized valueDoug Anderson1-1/+1
The RK808 regulator driver was putting its config on the stack but not initting it. That means that you got a semi-random config. Fix this. Signed-off-by: Doug Anderson <dianders@chromium.org> Signed-off-by: Mark Brown <broonie@linaro.org>
2014-08-21regulator: hi6421: Remove unused fields from struct hi6421_regulator_infoAxel Lin1-27/+4
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>
2014-08-20regulator: RK808: Add regulator driver for RK808Chris Zhong3-0/+421
The regulator module consists of 4 DCDCs, 8 LDOs and 2 switches. The output voltages are configurable and are meant to supply power to the main processor and other components Signed-off-by: Chris Zhong <zyw@rock-chips.com> Signed-off-by: Mark Brown <broonie@linaro.org>
2014-08-20regulator: max77802: Remove unused fields from struct max77802_regulator_prvAxel Lin1-2/+0
Both num_regulators and *rdev[MAX77802_REG_MAX] are not used, remove them. Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Mark Brown <broonie@linaro.org>
2014-08-19regulator: hi6421: style fix, else with a single return is not requiredGuodong Xu1-6/+6
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>
2014-08-19regulator: core: add const to regulator_ops and fix build error in mc13892Guodong Xu2-8/+11
Commit 272e2315fac3 ("regulator: core: add const qualifier to ops in struct regulator_desc") introduced const qualifier to ops in regulator_desc. This patch adds 'const' to regulator_ops vars in newly added core APIs for v3.17-rc1: - regulator_get_hardware_vsel_register() - regulator_list_hardware_vsel() This patch also fix a build error in mc13892-regulator.c due to const regulator_desc.ops. Modification of regulator_desc.ops' member fields is not allowed. Signed-off-by: Guodong Xu <guodong.xu@linaro.org> Signed-off-by: Mark Brown <broonie@linaro.org>
2014-08-18regulator: Add driver for max77802 PMIC PMIC regulatorsJavier Martinez Canillas3-0/+588
The MAX77802 PMIC has 10 high-efficiency Buck and 32 Low-dropout (LDO) regulators. This patch adds support for all these regulators found on the MAX77802 PMIC and is based on a driver added by Simon Glass to the Chrome OS kernel 3.8 tree. Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk> Tested-by: Naveen Krishna Chatradhi <ch.naveen@samsung.com> Signed-off-by: Mark Brown <broonie@linaro.org>
2014-08-17regulator: da9211: Check return value of devm_kzalloc()Axel Lin1-0/+2
Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Mark Brown <broonie@linaro.org>
2014-08-16regulator: add driver for hi6421 voltage regulatorGuodong Xu3-0/+668
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>
2014-08-16regulator: core: add guard delay between calling regulator_disable and _enableGuodong Xu1-0/+31
Some regulator require a minimum delay between its disable and next enable. This is to avoid damages when out-of-range frequent disable/enable of a single regulator can bring to the regulator chip. Add @off_on_delay to struct regulator_desc. Device drivers' can use this field to set this guard time. Add @last_off_jiffy to struct regulator_dev. When @off_on_delay is set by driver, regulator core can store its last off (disable) time into this field. Signed-off-by: Guodong Xu <guodong.xu@linaro.org> Signed-off-by: Mark Brown <broonie@linaro.org>
2014-08-16regulator: core: factor out delay function from _regulator_do_enableGuodong Xu1-34/+40
A common delay function can be helpful when implementing new features. Factor it out to maximize code reusability. Signed-off-by: Guodong Xu <guodong.xu@linaro.org> Signed-off-by: Mark Brown <broonie@linaro.org>
2014-08-16regulator: core: add const qualifier to ops in struct regulator_descGuodong Xu1-12/+12
struct regulator_ops *ops is a member in struct regulator_desc, which gets its value from individual regulator driver upon regulator_register() and is used by regulator core APIs. It's not allowed for regulator core to modify any of these callbacks in *ops. Add 'const' qualifier to enforce that. Signed-off-by: Guodong Xu <guodong.xu@linaro.org> Signed-off-by: Mark Brown <broonie@linaro.org>
2014-08-16regulator: tps65910: Allow missing init_data for diagnosticsAxel Lin1-11/+2
The regulator core supports this to allow the configuration to be inspected at runtime even if no software management is enabled. Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Mark Brown <broonie@linaro.org>
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