korg/linux
0
0
Fork 0
mirror of https://mirrors.bfsu.edu.cn/git/linux.git synced 2024-12-11 21:14:07 +08:00
Code Issues Packages Projects Releases Wiki Activity

ARM: ux500: Provide supplies for AUX1, AUX2 and AUX3

Browse Source 
This patch fixes a bug introduced in the v3.10 merge window.

The AB8500 External Regulator driver has recently landed upstream,
which registers each of the 3 external regulators located on the
AB8500. If these regulators are marked as 'always on', there is a
potential for power-loss. If they're not and are seemingly unused
the Regulator subsystem will attempt to disable them to save power.
This causes an issue for AUX1, AUX2 and AUX3 as they obtain their
power from EXT3. So we're specifying that here to prevent EXT3 from
being powered down.

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Lee Jones 2013-05-24 12:22:19 +01:00 committed by Linus Walleij
parent 2c06897e45
commit 67b7c75e1a
1 changed files with 3 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
arch/arm/mach-ux500/board-mop500-regulators.c
View File

@ -374,6 +374,7 @@ static struct ab8500_regulator_reg_init ab8500_reg_init[] = {
static struct regulator_init_data ab8500_regulators[AB8500_NUM_REGULATORS] = {
/* supplies to the display/camera */
[AB8500_LDO_AUX1] = {
.supply_regulator = "ab8500-ext-supply3",
.constraints = {
.name = "V-DISPLAY",
.min_uV = 2800000,
@ -387,6 +388,7 @@ static struct regulator_init_data ab8500_regulators[AB8500_NUM_REGULATORS] = {
},
/* supplies to the on-board eMMC */
[AB8500_LDO_AUX2] = {
.supply_regulator = "ab8500-ext-supply3",
.constraints = {
.name = "V-eMMC1",
.min_uV = 1100000,
@ -402,6 +404,7 @@ static struct regulator_init_data ab8500_regulators[AB8500_NUM_REGULATORS] = {
},
/* supply for VAUX3, supplies to SDcard slots */
[AB8500_LDO_AUX3] = {
.supply_regulator = "ab8500-ext-supply3",
.constraints = {
.name = "V-MMC-SD",
.min_uV = 1100000,