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authorChen-Yu Tsai <wens@csie.org>2018-07-12 19:04:49 +0300
committerLee Jones <lee.jones@linaro.org>2018-07-27 10:13:26 +0300
commit06f4901092c26c24575dd0aa1f55cdf9a83434e8 (patch)
treef27fcd26c61a830e965bd9b3e1a12c527bfce5f5 /drivers/mfd/axp20x.c
parentc26b633ee3dd295996006a47543af3759ca677ec (diff)
downloadlinux-06f4901092c26c24575dd0aa1f55cdf9a83434e8.tar.xz
mfd: axp20x: Add self-working mode support for AXP806
The AXP806 can operate in a standalone "self-working" mode, in which it is also responsible for power control of the overall system. This mode is similar to the master mode, but the EN/PWRON pin functions as a power button, instead of a level-triggered enable switch. This patch adds code checking for the new "x-powers,self-working-mode" property, and a separate mfd_cell list that includes the power button (PEK) sub-device. Signed-off-by: Chen-Yu Tsai <wens@csie.org> Reviewed-by: Icenowy Zheng <icenowy@aosc.io> Tested-by: Icenowy Zheng <icenowy@aosc.io> Acked-by: Maxime Ripard <maxime.ripard@bootlin.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
Diffstat (limited to 'drivers/mfd/axp20x.c')
-rw-r--r--drivers/mfd/axp20x.c28
1 files changed, 25 insertions, 3 deletions
diff --git a/drivers/mfd/axp20x.c b/drivers/mfd/axp20x.c
index 9a2ef3d9b8f8..0be511dd93d0 100644
--- a/drivers/mfd/axp20x.c
+++ b/drivers/mfd/axp20x.c
@@ -221,6 +221,11 @@ static const struct resource axp803_pek_resources[] = {
DEFINE_RES_IRQ_NAMED(AXP803_IRQ_PEK_FAL_EDGE, "PEK_DBF"),
};
+static const struct resource axp806_pek_resources[] = {
+ DEFINE_RES_IRQ_NAMED(AXP806_IRQ_POK_RISE, "PEK_DBR"),
+ DEFINE_RES_IRQ_NAMED(AXP806_IRQ_POK_FALL, "PEK_DBF"),
+};
+
static const struct resource axp809_pek_resources[] = {
DEFINE_RES_IRQ_NAMED(AXP809_IRQ_PEK_RIS_EDGE, "PEK_DBR"),
DEFINE_RES_IRQ_NAMED(AXP809_IRQ_PEK_FAL_EDGE, "PEK_DBF"),
@@ -730,6 +735,15 @@ static const struct mfd_cell axp803_cells[] = {
{ .name = "axp20x-regulator" },
};
+static const struct mfd_cell axp806_self_working_cells[] = {
+ {
+ .name = "axp221-pek",
+ .num_resources = ARRAY_SIZE(axp806_pek_resources),
+ .resources = axp806_pek_resources,
+ },
+ { .name = "axp20x-regulator" },
+};
+
static const struct mfd_cell axp806_cells[] = {
{
.id = 2,
@@ -842,8 +856,14 @@ int axp20x_match_device(struct axp20x_dev *axp20x)
axp20x->regmap_irq_chip = &axp803_regmap_irq_chip;
break;
case AXP806_ID:
- axp20x->nr_cells = ARRAY_SIZE(axp806_cells);
- axp20x->cells = axp806_cells;
+ if (of_property_read_bool(axp20x->dev->of_node,
+ "x-powers,self-working-mode")) {
+ axp20x->nr_cells = ARRAY_SIZE(axp806_self_working_cells);
+ axp20x->cells = axp806_self_working_cells;
+ } else {
+ axp20x->nr_cells = ARRAY_SIZE(axp806_cells);
+ axp20x->cells = axp806_cells;
+ }
axp20x->regmap_cfg = &axp806_regmap_config;
axp20x->regmap_irq_chip = &axp806_regmap_irq_chip;
break;
@@ -901,7 +921,9 @@ int axp20x_device_probe(struct axp20x_dev *axp20x)
*/
if (axp20x->variant == AXP806_ID) {
if (of_property_read_bool(axp20x->dev->of_node,
- "x-powers,master-mode"))
+ "x-powers,master-mode") ||
+ of_property_read_bool(axp20x->dev->of_node,
+ "x-powers,self-working-mode"))
regmap_write(axp20x->regmap, AXP806_REG_ADDR_EXT,
AXP806_REG_ADDR_EXT_ADDR_MASTER_MODE);
else