mfd: axp20x: Add support for AXP806 PMIC

[cascardo/linux.git] / drivers / mfd / axp20x.c

diff --git a/drivers/mfd/axp20x.c b/drivers/mfd/axp20x.c
index e4e3297..9610275 100644 (file)
--- a/drivers/mfd/axp20x.c
+++ b/drivers/mfd/axp20x.c
@@ -17,6 +17,7 @@
  */
 
 #include <linux/err.h>
+#include <linux/delay.h>
 #include <linux/interrupt.h>
 #include <linux/kernel.h>
 #include <linux/module.h>
@@ -37,6 +38,7 @@ static const char * const axp20x_model_names[] = {
        "AXP221",
        "AXP223",
        "AXP288",
+       "AXP806",
        "AXP809",
 };
 
@@ -93,7 +95,10 @@ static const struct regmap_range axp22x_writeable_ranges[] = {
 };
 
 static const struct regmap_range axp22x_volatile_ranges[] = {
+       regmap_reg_range(AXP20X_PWR_INPUT_STATUS, AXP20X_PWR_OP_MODE),
        regmap_reg_range(AXP20X_IRQ1_EN, AXP20X_IRQ5_STATE),
+       regmap_reg_range(AXP22X_GPIO_STATE, AXP22X_GPIO_STATE),
+       regmap_reg_range(AXP20X_FG_RES, AXP20X_FG_RES),
 };
 
 static const struct regmap_access_table axp22x_writeable_table = {
@@ -125,6 +130,27 @@ static const struct regmap_access_table axp288_volatile_table = {
        .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"),
@@ -157,6 +183,11 @@ static struct resource axp20x_usb_power_supply_resources[] = {
        DEFINE_RES_IRQ_NAMED(AXP20X_IRQ_VBUS_NOT_VALID, "VBUS_NOT_VALID"),
 };
 
+static struct resource axp22x_usb_power_supply_resources[] = {
+       DEFINE_RES_IRQ_NAMED(AXP22X_IRQ_VBUS_PLUGIN, "VBUS_PLUGIN"),
+       DEFINE_RES_IRQ_NAMED(AXP22X_IRQ_VBUS_REMOVAL, "VBUS_REMOVAL"),
+};
+
 static struct resource axp22x_pek_resources[] = {
        {
                .name   = "PEK_DBR",
@@ -269,6 +300,15 @@ static const struct regmap_config axp288_regmap_config = {
        .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) }
 
@@ -400,6 +440,21 @@ static const struct regmap_irq axp288_regmap_irqs[] = {
        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),
@@ -485,6 +540,18 @@ static const struct regmap_irq_chip axp288_regmap_irq_chip = {
 
 };
 
+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,
@@ -524,6 +591,11 @@ static struct mfd_cell axp22x_cells[] = {
                .resources              = axp22x_pek_resources,
        }, {
                .name                   = "axp20x-regulator",
+       }, {
+               .name           = "axp20x-usb-power-supply",
+               .of_compatible  = "x-powers,axp221-usb-power-supply",
+               .num_resources  = ARRAY_SIZE(axp22x_usb_power_supply_resources),
+               .resources      = axp22x_usb_power_supply_resources,
        },
 };
 
@@ -646,12 +718,20 @@ static struct mfd_cell axp288_cells[] = {
        },
 };
 
+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",
        },
 };
@@ -664,6 +744,9 @@ static void axp20x_power_off(void)
 
        regmap_write(axp20x_pm_power_off->regmap, AXP20X_OFF_CTRL,
                     AXP20X_OFF);
+
+       /* Give capacitors etc. time to drain to avoid kernel panic msg. */
+       msleep(500);
 }
 
 int axp20x_match_device(struct axp20x_dev *axp20x)
@@ -715,6 +798,12 @@ int axp20x_match_device(struct axp20x_dev *axp20x)
                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;