hollalinux
/
linux-sg2042
mirror of https://github.com/sophgo/linux-riscv.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

mfd: axp20x: Mark AXP20X_VBUS_IPSOUT_MGMT as volatile 

On AXP288 and newer PMICs, bit 7 of AXP20X_VBUS_IPSOUT_MGMT can be set
to prevent using the VBUS input. However, when the VBUS unplugged and
plugged back in, the bit automatically resets to zero.

We need to set the register as volatile to prevent regmap from caching
that bit. Otherwise, regcache will think the bit is already set and not
write the register.

Fixes: cd53216625 ("mfd: axp20x: Fix axp288 volatile ranges")
Cc: stable@vger.kernel.org
Signed-off-by: Samuel Holland <samuel@sholland.org>
Reviewed-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
This commit is contained in:
Samuel Holland 2020-01-04 19:24:08 -06:00 committed by Lee Jones
parent 702204c22c
commit dc91c3b6fe
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/mfd/axp20x.c
View File

@ -126,7 +126,7 @@ static const struct regmap_range axp288_writeable_ranges[] = {
static const struct regmap_range axp288_volatile_ranges[] = {
regmap_reg_range(AXP20X_PWR_INPUT_STATUS, AXP288_POWER_REASON),
regmap_reg_range(AXP288_BC_GLOBAL, AXP288_BC_GLOBAL),
regmap_reg_range(AXP288_BC_DET_STAT, AXP288_BC_DET_STAT),
regmap_reg_range(AXP288_BC_DET_STAT, AXP20X_VBUS_IPSOUT_MGMT),
regmap_reg_range(AXP20X_CHRG_BAK_CTRL, AXP20X_CHRG_BAK_CTRL),
regmap_reg_range(AXP20X_IRQ1_EN, AXP20X_IPSOUT_V_HIGH_L),
regmap_reg_range(AXP20X_TIMER_CTRL, AXP20X_TIMER_CTRL),