add some power supply properties about wireless/wired charging

From: wangting11 <[email protected]>

This patchset aims to provide power supply properties about wireless/wired charging. "quick_charge_type" reports different types of quick charge based on the charging power; "tx_adapter" shows" the type of wireless charging adapter; "signal_strength" shows the coupling level between TX and RX; "reverse_chg_mode" provides the interface of enabling/disabling wireless reverse charging.

Changes in V11
- Fix build error on linus/master
- Fix build error on power-supply/for-next
- Fix conflict

Changes in V10
- Fix build error on linus/master v5.9-rc2 next-20200824 Reported-by: kernel test robot <[email protected]>
- Fix build error on power-supply/for-next Reported-by: kernel test robot <[email protected]>

Changes in v9
- Set bat_imax When get quick charger type

Changes in v8
- Add quick charge type driver in qcom_smbb suggested by GregKH

Changes in v7
- Fix PATCH version error in 0/X email

Changes in v6
- Replace "phones" with "devices" suggested by GregKH
- Add permission statement for "reverse_chg_mode"
- Update description for "reverse_chg_mode" in ABI suggested by GregKH
- Update description for "PING phase" in ABI suggested by GregKH

Changes in v5
- Add details in 0/X email

Changes in v4
- Exclude the patch of "power: supply: supply battery soc with decimal form"
- Fix some typo

Changes in v3
- Add enumederated for quick charge type
- Add enumederated for tx adapter type
- Update the return type and description in ABI

Changes in v2
- modify to capital letters for "power_supply_attrs"
- Update the return type and description in ABI

wangting11 (4):
power: supply: core: add quick charge type property
power: supply: core: add wireless charger adapter type property
power: supply: core: add wireless signal strength property
power: supply: core: property to control reverse charge

 Documentation/ABI/testing/sysfs-class-power | 85 +++++++++++++++++++++
 drivers/power/supply/power_supply_sysfs.c   |  4 +
 drivers/power/supply/qcom_smbb.c            | 81 +++++++++++++++++++-
 include/linux/power_supply.h                | 35 +++++++++
 4 files changed, 204 insertions(+), 1 deletion(-)

2.17.1