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mfd: axp20x: Add support for AXP813 PMIC 

The X-Powers AXP813 PMIC is normally used with Allwinner's A83T SoC.
It has the same range of functions as other X-Powers PMICs, such as
DC-DC buck converter and linear regulator outputs, AC-IN and VBUS
power supplies, power button trigger, GPIOs, ADCs, and a battery
charger.

Note that the IRQ table given in the datasheet is incorrect: in IRQ
enable/status registers 1, there are separate IRQs for ACIN and VBUS,
instead of bits [7:5] being the same as bits [4:2]. So it shares the
same IRQs as the AXP803, rather than the AXP288.

This patch adds basic mfd support for it, with only the power button
enabled.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
zero-colors
Chen-Yu Tsai 2017-07-26 16:28:26 +08:00 committed by Lee Jones
parent 7e312ffdd7
commit 7303733a6c
3 changed files with 52 additions and 0 deletions
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1
drivers/mfd/axp20x-rsb.c
View File

@ -64,6 +64,7 @@ static const struct of_device_id axp20x_rsb_of_match[] = {
{ .compatible = "x-powers,axp803", .data = (void *)AXP803_ID },
{ .compatible = "x-powers,axp806", .data = (void *)AXP806_ID },
{ .compatible = "x-powers,axp809", .data = (void *)AXP809_ID },
{ .compatible = "x-powers,axp813", .data = (void *)AXP813_ID },
{ },
};
MODULE_DEVICE_TABLE(of, axp20x_rsb_of_match);

22
drivers/mfd/axp20x.c
View File

@ -44,6 +44,7 @@ static const char * const axp20x_model_names[] = {
"AXP803",
"AXP806",
"AXP809",
"AXP813",
};
static const struct regmap_range axp152_writeable_ranges[] = {
@ -870,6 +871,14 @@ static struct mfd_cell axp809_cells[] = {
},
};
static struct mfd_cell axp813_cells[] = {
{
.name = "axp20x-pek",
.num_resources = ARRAY_SIZE(axp803_pek_resources),
.resources = axp803_pek_resources,
}
};
static struct axp20x_dev *axp20x_pm_power_off;
static void axp20x_power_off(void)
{
@ -956,6 +965,19 @@ int axp20x_match_device(struct axp20x_dev *axp20x)
axp20x->regmap_cfg = &axp22x_regmap_config;
axp20x->regmap_irq_chip = &axp809_regmap_irq_chip;
break;
case AXP813_ID:
axp20x->nr_cells = ARRAY_SIZE(axp813_cells);
axp20x->cells = axp813_cells;
axp20x->regmap_cfg = &axp288_regmap_config;
/*
* The IRQ table given in the datasheet is incorrect.
* In IRQ enable/status registers 1, there are separate
* IRQs for ACIN and VBUS, instead of bits [7:5] being
* the same as bits [4:2]. So it shares the same IRQs
* as the AXP803, rather than the AXP288.
*/
axp20x->regmap_irq_chip = &axp803_regmap_irq_chip;
break;
default:
dev_err(dev, "unsupported AXP20X ID %lu\n", axp20x->variant);
return -EINVAL;

29
include/linux/mfd/axp20x.h
View File

@ -23,6 +23,7 @@ enum axp20x_variants {
AXP803_ID,
AXP806_ID,
AXP809_ID,
AXP813_ID,
NR_AXP20X_VARIANTS,
};
@ -387,6 +388,34 @@ enum {
AXP803_REG_ID_MAX,
};
enum {
AXP813_DCDC1 = 0,
AXP813_DCDC2,
AXP813_DCDC3,
AXP813_DCDC4,
AXP813_DCDC5,
AXP813_DCDC6,
AXP813_DCDC7,
AXP813_ALDO1,
AXP813_ALDO2,
AXP813_ALDO3,
AXP813_DLDO1,
AXP813_DLDO2,
AXP813_DLDO3,
AXP813_DLDO4,
AXP813_ELDO1,
AXP813_ELDO2,
AXP813_ELDO3,
AXP813_FLDO1,
AXP813_FLDO2,
AXP813_FLDO3,
AXP813_RTC_LDO,
AXP813_LDO_IO0,
AXP813_LDO_IO1,
AXP813_SW,
AXP813_REG_ID_MAX,
};
/* IRQs */
enum {
AXP152_IRQ_LDO0IN_CONNECT = 1,