mfd: axp20x: Add support for AXP806 PMIC
The X-Powers AXP806 is a new PMIC that is paired with Allwinner's A80
SoC, along with a master AXP809 PMIC.
This PMIC has a new register layout, and supports some functions not
seen in other X-Powers PMICs, such as master-slave mode, or having
multiple AXP806 PMICs on the same bus with address space extension,
or supporting both I2C and RSB mode. I2C has not been tested.
This patch adds support for the interrupts of the PMIC. A regulator
sub-device is enabled, but actual regulator support will come in a
later patch.
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
diff --git a/drivers/mfd/axp20x.c b/drivers/mfd/axp20x.c
index fd80b09..9610275 100644
--- a/drivers/mfd/axp20x.c
+++ b/drivers/mfd/axp20x.c
@@ -38,6 +38,7 @@
"AXP221",
"AXP223",
"AXP288",
+ "AXP806",
"AXP809",
};
@@ -129,6 +130,27 @@
.n_yes_ranges = ARRAY_SIZE(axp288_volatile_ranges),
};
+static const struct regmap_range axp806_writeable_ranges[] = {
+ regmap_reg_range(AXP20X_DATACACHE(0), AXP20X_DATACACHE(3)),
+ regmap_reg_range(AXP806_PWR_OUT_CTRL1, AXP806_CLDO3_V_CTRL),
+ regmap_reg_range(AXP20X_IRQ1_EN, AXP20X_IRQ2_EN),
+ regmap_reg_range(AXP20X_IRQ1_STATE, AXP20X_IRQ2_STATE),
+};
+
+static const struct regmap_range axp806_volatile_ranges[] = {
+ regmap_reg_range(AXP20X_IRQ1_STATE, AXP20X_IRQ2_STATE),
+};
+
+static const struct regmap_access_table axp806_writeable_table = {
+ .yes_ranges = axp806_writeable_ranges,
+ .n_yes_ranges = ARRAY_SIZE(axp806_writeable_ranges),
+};
+
+static const struct regmap_access_table axp806_volatile_table = {
+ .yes_ranges = axp806_volatile_ranges,
+ .n_yes_ranges = ARRAY_SIZE(axp806_volatile_ranges),
+};
+
static struct resource axp152_pek_resources[] = {
DEFINE_RES_IRQ_NAMED(AXP152_IRQ_PEK_RIS_EDGE, "PEK_DBR"),
DEFINE_RES_IRQ_NAMED(AXP152_IRQ_PEK_FAL_EDGE, "PEK_DBF"),
@@ -278,6 +300,15 @@
.cache_type = REGCACHE_RBTREE,
};
+static const struct regmap_config axp806_regmap_config = {
+ .reg_bits = 8,
+ .val_bits = 8,
+ .wr_table = &axp806_writeable_table,
+ .volatile_table = &axp806_volatile_table,
+ .max_register = AXP806_VREF_TEMP_WARN_L,
+ .cache_type = REGCACHE_RBTREE,
+};
+
#define INIT_REGMAP_IRQ(_variant, _irq, _off, _mask) \
[_variant##_IRQ_##_irq] = { .reg_offset = (_off), .mask = BIT(_mask) }
@@ -409,6 +440,21 @@
INIT_REGMAP_IRQ(AXP288, BC_USB_CHNG, 5, 1),
};
+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),
+ INIT_REGMAP_IRQ(AXP806, DCDCA_V_LOW, 0, 3),
+ INIT_REGMAP_IRQ(AXP806, DCDCB_V_LOW, 0, 4),
+ INIT_REGMAP_IRQ(AXP806, DCDCC_V_LOW, 0, 5),
+ INIT_REGMAP_IRQ(AXP806, DCDCD_V_LOW, 0, 6),
+ INIT_REGMAP_IRQ(AXP806, DCDCE_V_LOW, 0, 7),
+ INIT_REGMAP_IRQ(AXP806, PWROK_LONG, 1, 0),
+ INIT_REGMAP_IRQ(AXP806, PWROK_SHORT, 1, 1),
+ INIT_REGMAP_IRQ(AXP806, WAKEUP, 1, 4),
+ INIT_REGMAP_IRQ(AXP806, PWROK_FALL, 1, 5),
+ INIT_REGMAP_IRQ(AXP806, PWROK_RISE, 1, 6),
+};
+
static const struct regmap_irq axp809_regmap_irqs[] = {
INIT_REGMAP_IRQ(AXP809, ACIN_OVER_V, 0, 7),
INIT_REGMAP_IRQ(AXP809, ACIN_PLUGIN, 0, 6),
@@ -494,6 +540,18 @@
};
+static const struct regmap_irq_chip axp806_regmap_irq_chip = {
+ .name = "axp806",
+ .status_base = AXP20X_IRQ1_STATE,
+ .ack_base = AXP20X_IRQ1_STATE,
+ .mask_base = AXP20X_IRQ1_EN,
+ .mask_invert = true,
+ .init_ack_masked = true,
+ .irqs = axp806_regmap_irqs,
+ .num_irqs = ARRAY_SIZE(axp806_regmap_irqs),
+ .num_regs = 2,
+};
+
static const struct regmap_irq_chip axp809_regmap_irq_chip = {
.name = "axp809",
.status_base = AXP20X_IRQ1_STATE,
@@ -660,12 +718,20 @@
},
};
+static struct mfd_cell axp806_cells[] = {
+ {
+ .id = 2,
+ .name = "axp20x-regulator",
+ },
+};
+
static struct mfd_cell axp809_cells[] = {
{
.name = "axp20x-pek",
.num_resources = ARRAY_SIZE(axp809_pek_resources),
.resources = axp809_pek_resources,
}, {
+ .id = 1,
.name = "axp20x-regulator",
},
};
@@ -732,6 +798,12 @@
axp20x->regmap_cfg = &axp288_regmap_config;
axp20x->regmap_irq_chip = &axp288_regmap_irq_chip;
break;
+ case AXP806_ID:
+ 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;
case AXP809_ID:
axp20x->nr_cells = ARRAY_SIZE(axp809_cells);
axp20x->cells = axp809_cells;