Commit 06f49010 authored by Chen-Yu Tsai's avatar Chen-Yu Tsai Committed by Lee Jones
Browse files

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: default avatarChen-Yu Tsai <wens@csie.org>
Reviewed-by: default avatarIcenowy Zheng <icenowy@aosc.io>
Tested-by: default avatarIcenowy Zheng <icenowy@aosc.io>
Acked-by: default avatarMaxime Ripard <maxime.ripard@bootlin.com>
Signed-off-by: default avatarLee Jones <lee.jones@linaro.org>
parent c26b633e

drivers/mfd/axp20x.c

+25 −3
Original line number Diff line number Diff line
@@ -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:

		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

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