u-boot.git/drivers/power/Kconfig, branch v2015.04

sunxi: axp221: Add ELDO[1-3] support

2015-01-22T11:34:56Z

And also add Kconfig option for selecting ELDO3 voltage. The reason for having this option is that the Android kernel sets ELDO3 to 1.2V when powering up LCD in the case if 'lcd_if' configuration variable is set to 6 (LCD_IF_EXT_DSI) in the FEX file. Most likely to supply power for a SSD2828 chip. However on the MSI Primo81 tablet, which is using this particular 'lcd_if = 6' setup for LCD, setting the ELDO3 voltage appears to be unnecessary and it works regardless. Having no schematics of this tablet, I can only guess that 1.2V is supplied to SSD2828 in some other way. Signed-off-by: Siarhei Siamashka Acked-by: Hans de Goede Signed-off-by: Hans de Goede

sunxi: axp221: correct ALDO2 description for sun6i

2015-01-14T13:56:40Z

ALDO2 is used to power LPDDR2 SDRAM on both the reference design and the Hummingbird A31, when this type of RAM is present. Signed-off-by: Chen-Yu Tsai Acked-by: Hans de Goede Signed-off-by: Hans de Goede

sunxi: axp221: Explicitly turn off unused voltages

2015-01-14T13:56:37Z

Explicitly turn off unused voltages, rather then leaving them as is. Likewise explictly enabled the dcdc convertors, rather then assuming they are already enabled at boot. Signed-off-by: Hans de Goede Acked-by: Ian Campbell

sunxi: axp221: Make dcdc1 voltage configurable

2015-01-14T13:56:36Z

The dcdc1 voltage is typically used as generic 3.3V IO voltage for things like GPIO-s, sdcard interfaces, etc. On most boards this is undervolted to 3.0V to safe battery, but not on all, make it configurable so that we can use the same settings as the original firmware on all boards. Signed-off-by: Hans de Goede Acked-by: Ian Campbell

sunxi: axp221: Add Kconfig help and sane defaults for typical ldo usage

2015-01-14T13:56:36Z

Some of the ldo-s of the axp221 are used in the same way on most boards, add comments to the Kconfig help text to reflect this, and give them defaults matching their typical usage. Signed-off-by: Hans de Goede Acked-by: Ian Campbell

sunxi: axp221: Add axp223 support

2015-01-14T13:56:36Z

The axp223 appears to be the same as the axp221, except that it uses the rsb to communicate rather then the p2wi. At least all the registers we use are 100% the same. Signed-off-by: Hans de Goede Acked-by: Ian Campbell

sun6i: Add basic axp221 driver

2014-11-13T13:49:01Z

The A31 uses the AXP221 pmic for various voltages. Signed-off-by: Oliver Schinagl Signed-off-by: Hans de Goede Acked-by: Ian Campbell -- Changes in v2: -Rebase Changes in v3: -Add support for all dldo and aldo-s -Add Kconfig option to select building AXP221 and to select voltage of dldo and aldo-s Changes in v4: -Add axp221_setbits helper function -Use symbolic names for enabled bits in CTRL1 - CTRL3 registers

kconfig: add blank Kconfig files

2014-09-24T22:30:28Z

This would be useful to start moving various config options. Signed-off-by: Masahiro Yamada Acked-by: Simon Glass Tested-by: Simon Glass