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| author | Chen-Yu Tsai <wens@csie.org> | 2018-07-13 00:04:49 +0800 |
|---|---|---|
| committer | Lee Jones <lee.jones@linaro.org> | 2018-07-27 08:13:26 +0100 |
| commit | 06f4901092c26c24575dd0aa1f55cdf9a83434e8 (patch) | |
| tree | f27fcd26c61a830e965bd9b3e1a12c527bfce5f5 /drivers/mfd/axp20x.c | |
| parent | c26b633ee3dd295996006a47543af3759ca677ec (diff) | |
| download | linux-06f4901092c26c24575dd0aa1f55cdf9a83434e8.tar.gz | |
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.c | 28 |
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 |