mfd: axp20x: Support AXP803 variant

AXP803 is a new PMIC chip produced by X-Powers, usually paired with A64
via RSB bus. The PMIC itself is like AXP288, but with RSB support and
dedicated VBUS and ACIN.

Add support for it in the axp20x mfd driver.

Currently only power key function is supported.

Signed-off-by: Icenowy Zheng <icenowy@aosc.io>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

2 files changed, 80 insertions, 0 deletions

diff --git a/drivers/mfd/axp20x-rsb.c b/drivers/mfd/axp20x-rsb.c
index a732cb50bcff..fd5c7267b136 100644
--- a/drivers/mfd/axp20x-rsb.c
+++ b/drivers/mfd/axp20x-rsb.c
@@ -61,6 +61,7 @@ static int axp20x_rsb_remove(struct sunxi_rsb_device *rdev)
 
 static const struct of_device_id axp20x_rsb_of_match[] = {
 	{ .compatible = "x-powers,axp223", .data = (void *)AXP223_ID },
+	{ .compatible = "x-powers,axp803", .data = (void *)AXP803_ID },
 	{ .compatible = "x-powers,axp806", .data = (void *)AXP806_ID },
 	{ .compatible = "x-powers,axp809", .data = (void *)AXP809_ID },
 	{ },
diff --git a/drivers/mfd/axp20x.c b/drivers/mfd/axp20x.c
index e6f55079876e..1dc6235778eb 100644
--- a/drivers/mfd/axp20x.c
+++ b/drivers/mfd/axp20x.c
@@ -41,6 +41,7 @@ static const char * const axp20x_model_names[] = {
 	"AXP221",
 	"AXP223",
 	"AXP288",
+	"AXP803",
 	"AXP806",
 	"AXP809",
 };
@@ -117,6 +118,7 @@ static const struct regmap_access_table axp22x_volatile_table = {
 	.n_yes_ranges	= ARRAY_SIZE(axp22x_volatile_ranges),
 };
 
+/* AXP288 ranges are shared with the AXP803, as they cover the same range */
 static const struct regmap_range axp288_writeable_ranges[] = {
 	regmap_reg_range(AXP20X_DATACACHE(0), AXP20X_IRQ6_STATE),
 	regmap_reg_range(AXP20X_DCDC_MODE, AXP288_FG_TUNE5),
@@ -264,6 +266,20 @@ static struct resource axp288_fuel_gauge_resources[] = {
 	},
 };
 
+static struct resource axp803_pek_resources[] = {
+	{
+		.name   = "PEK_DBR",
+		.start  = AXP803_IRQ_PEK_RIS_EDGE,
+		.end    = AXP803_IRQ_PEK_RIS_EDGE,
+		.flags  = IORESOURCE_IRQ,
+	}, {
+		.name   = "PEK_DBF",
+		.start  = AXP803_IRQ_PEK_FAL_EDGE,
+		.end    = AXP803_IRQ_PEK_FAL_EDGE,
+		.flags  = IORESOURCE_IRQ,
+	},
+};
+
 static struct resource axp809_pek_resources[] = {
 	{
 		.name   = "PEK_DBR",
@@ -457,6 +473,43 @@ static const struct regmap_irq axp288_regmap_irqs[] = {
 	INIT_REGMAP_IRQ(AXP288, BC_USB_CHNG,            5, 1),
 };
 
+static const struct regmap_irq axp803_regmap_irqs[] = {
+	INIT_REGMAP_IRQ(AXP803, ACIN_OVER_V,		0, 7),
+	INIT_REGMAP_IRQ(AXP803, ACIN_PLUGIN,		0, 6),
+	INIT_REGMAP_IRQ(AXP803, ACIN_REMOVAL,	        0, 5),
+	INIT_REGMAP_IRQ(AXP803, VBUS_OVER_V,		0, 4),
+	INIT_REGMAP_IRQ(AXP803, VBUS_PLUGIN,		0, 3),
+	INIT_REGMAP_IRQ(AXP803, VBUS_REMOVAL,	        0, 2),
+	INIT_REGMAP_IRQ(AXP803, BATT_PLUGIN,		1, 7),
+	INIT_REGMAP_IRQ(AXP803, BATT_REMOVAL,	        1, 6),
+	INIT_REGMAP_IRQ(AXP803, BATT_ENT_ACT_MODE,	1, 5),
+	INIT_REGMAP_IRQ(AXP803, BATT_EXIT_ACT_MODE,	1, 4),
+	INIT_REGMAP_IRQ(AXP803, CHARG,		        1, 3),
+	INIT_REGMAP_IRQ(AXP803, CHARG_DONE,		1, 2),
+	INIT_REGMAP_IRQ(AXP803, BATT_CHG_TEMP_HIGH,	2, 7),
+	INIT_REGMAP_IRQ(AXP803, BATT_CHG_TEMP_HIGH_END,	2, 6),
+	INIT_REGMAP_IRQ(AXP803, BATT_CHG_TEMP_LOW,	2, 5),
+	INIT_REGMAP_IRQ(AXP803, BATT_CHG_TEMP_LOW_END,	2, 4),
+	INIT_REGMAP_IRQ(AXP803, BATT_ACT_TEMP_HIGH,	2, 3),
+	INIT_REGMAP_IRQ(AXP803, BATT_ACT_TEMP_HIGH_END,	2, 2),
+	INIT_REGMAP_IRQ(AXP803, BATT_ACT_TEMP_LOW,	2, 1),
+	INIT_REGMAP_IRQ(AXP803, BATT_ACT_TEMP_LOW_END,	2, 0),
+	INIT_REGMAP_IRQ(AXP803, DIE_TEMP_HIGH,	        3, 7),
+	INIT_REGMAP_IRQ(AXP803, GPADC,		        3, 2),
+	INIT_REGMAP_IRQ(AXP803, LOW_PWR_LVL1,	        3, 1),
+	INIT_REGMAP_IRQ(AXP803, LOW_PWR_LVL2,	        3, 0),
+	INIT_REGMAP_IRQ(AXP803, TIMER,		        4, 7),
+	INIT_REGMAP_IRQ(AXP803, PEK_RIS_EDGE,	        4, 6),
+	INIT_REGMAP_IRQ(AXP803, PEK_FAL_EDGE,	        4, 5),
+	INIT_REGMAP_IRQ(AXP803, PEK_SHORT,		4, 4),
+	INIT_REGMAP_IRQ(AXP803, PEK_LONG,		4, 3),
+	INIT_REGMAP_IRQ(AXP803, PEK_OVER_OFF,		4, 2),
+	INIT_REGMAP_IRQ(AXP803, GPIO1_INPUT,		4, 1),
+	INIT_REGMAP_IRQ(AXP803, GPIO0_INPUT,		4, 0),
+	INIT_REGMAP_IRQ(AXP803, BC_USB_CHNG,            5, 1),
+	INIT_REGMAP_IRQ(AXP803, MV_CHNG,                5, 0),
+};
+
 static const struct regmap_irq axp806_regmap_irqs[] = {
 	INIT_REGMAP_IRQ(AXP806, DIE_TEMP_HIGH_LV1,	0, 0),
 	INIT_REGMAP_IRQ(AXP806, DIE_TEMP_HIGH_LV2,	0, 1),
@@ -557,6 +610,18 @@ static const struct regmap_irq_chip axp288_regmap_irq_chip = {
 
 };
 
+static const struct regmap_irq_chip axp803_regmap_irq_chip = {
+	.name			= "axp803",
+	.status_base		= AXP20X_IRQ1_STATE,
+	.ack_base		= AXP20X_IRQ1_STATE,
+	.mask_base		= AXP20X_IRQ1_EN,
+	.mask_invert		= true,
+	.init_ack_masked	= true,
+	.irqs			= axp803_regmap_irqs,
+	.num_irqs		= ARRAY_SIZE(axp803_regmap_irqs),
+	.num_regs		= 6,
+};
+
 static const struct regmap_irq_chip axp806_regmap_irq_chip = {
 	.name			= "axp806",
 	.status_base		= AXP20X_IRQ1_STATE,
@@ -778,6 +843,14 @@ static struct mfd_cell axp288_cells[] = {
 	},
 };
 
+static struct mfd_cell axp803_cells[] = {
+	{
+		.name			= "axp20x-pek",
+		.num_resources		= ARRAY_SIZE(axp803_pek_resources),
+		.resources		= axp803_pek_resources,
+	}
+};
+
 static struct mfd_cell axp806_cells[] = {
 	{
 		.id			= 2,
@@ -864,6 +937,12 @@ int axp20x_match_device(struct axp20x_dev *axp20x)
 		axp20x->regmap_irq_chip = &axp288_regmap_irq_chip;
 		axp20x->irq_flags = IRQF_TRIGGER_LOW;
 		break;
+	case AXP803_ID:
+		axp20x->nr_cells = ARRAY_SIZE(axp803_cells);
+		axp20x->cells = axp803_cells;
+		axp20x->regmap_cfg = &axp288_regmap_config;
+		axp20x->regmap_irq_chip = &axp803_regmap_irq_chip;
+		break;
 	case AXP806_ID:
 		axp20x->nr_cells = ARRAY_SIZE(axp806_cells);
 		axp20x->cells = axp806_cells;