The LDOs are documented in the rk808 datasheet to have a soft start
time of 400us.  Add that to the driver.  If this time takes longer on
a certain board the device tree should be able to override with
"regulator-enable-ramp-delay".

This fixes some dw_mmc probing problems (together with other patches
posted to the mmc maiing lists) on rk3288.
Signed-off-by: NDoug Anderson <dianders@chromium.org>
Signed-off-by: NMark Brown <broonie@kernel.org>
Cc: stable@vger.kernel.org

Fixes the following sparse warnings:

drivers/regulator/rk808-regulator.c:100:5: warning:
 symbol 'rk808_set_suspend_voltage' was not declared. Should it be static?
drivers/regulator/rk808-regulator.c:115:5: warning:
 symbol 'rk808_set_suspend_enable' was not declared. Should it be static?
drivers/regulator/rk808-regulator.c:126:5: warning:
 symbol 'rk808_set_suspend_disable' was not declared. Should it be static?
Signed-off-by: NWei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: NMark Brown <broonie@kernel.org>

A platform_driver does not need to set an owner, it will be populated by the
driver core.
Signed-off-by: NWolfram Sang <wsa@the-dreams.de>

support setting suspend voltage and disable regulator in suspend.
Signed-off-by: NChris Zhong <zyw@rock-chips.com>
Reviewed-by: NDoug Anderson <dianders@chromium.org>
Signed-off-by: NMark Brown <broonie@kernel.org>

The min_uv in DCDC1 & DCDC2 should be 712.5mv
Signed-off-by: NChris Zhong <zyw@rock-chips.com>
Reviwed-by: NDoug Anderson <dianders@chromium.org>
Signed-off-by: NMark Brown <broonie@kernel.org>

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: NDoug Anderson <dianders@chromium.org>
Signed-off-by: NMark Brown <broonie@kernel.org>

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: NAxel Lin <axel.lin@ingics.com>
Signed-off-by: NMark Brown <broonie@kernel.org>

Also remove non-informative comment.
Signed-off-by: NAxel Lin <axel.lin@ingics.com>
Signed-off-by: NMark Brown <broonie@kernel.org>

Signed-off-by: NChris Zhong <zyw@rock-chips.com>
Tested-by: NHeiko Stuebner <heiko@sntech.de>
Reviewed-by: NDoug Anderson <dianders@chromium.org>
Tested-by: NDoug Anderson <dianders@chromium.org>
Signed-off-by: NMark Brown <broonie@kernel.org>

The original RK808 regulator driver didn't setup input supplies
properly.  Add them.
Signed-off-by: NDoug Anderson <dianders@chromium.org>
Signed-off-by: NMark Brown <broonie@kernel.org>

The min_sel is 0, max_sel is 15, so n_voltages should be 16.
Signed-off-by: NAxel Lin <axel.lin@ingics.com>
Signed-off-by: NMark Brown <broonie@kernel.org>

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: NAxel Lin <axel.lin@ingics.com>
Signed-off-by: NMark Brown <broonie@linaro.org>

remove the redundant code, since pdata has been removed from stuct rk808
Signed-off-by: NChris Zhong <zyw@rock-chips.com>
Signed-off-by: NMark Brown <broonie@linaro.org>

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: NChris Zhong <zyw@rock-chips.com>
Signed-off-by: NMark Brown <broonie@linaro.org>

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: NDoug Anderson <dianders@chromium.org>
Signed-off-by: NMark Brown <broonie@linaro.org>

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: NChris Zhong <zyw@rock-chips.com>
Signed-off-by: NMark Brown <broonie@linaro.org>