On Wed, 18 Jan 2023, Martin Botka wrote: > The AXP313a is a PMIC chip produced by X-Powers, it can be connected via > an I2C bus. > The name AXP1530 seems to appear as well, and this is what is used in > the BSP driver. From all we know it's the same chip, just a different > name. However we have only seen AXP313a chips in the wild, so go with > this name. > > Compared to the other AXP PMICs it's a rather simple affair: just three > DCDC converters, three LDOs, and no battery charging support. > > Describe the regmap and the MFD bits, along with the registers exposed > via I2C. Eventually advertise the device using the new compatible > string. > > Signed-off-by: Martin Botka <martin.botka@xxxxxxxxxxxxxx> > Signed-off-by: Andre Przywara <andre.przywara@xxxxxxx> > --- > drivers/mfd/axp20x-i2c.c | 2 ++ > drivers/mfd/axp20x.c | 61 ++++++++++++++++++++++++++++++++++++++ > include/linux/mfd/axp20x.h | 32 ++++++++++++++++++++ > 3 files changed, 95 insertions(+) > > diff --git a/drivers/mfd/axp20x-i2c.c b/drivers/mfd/axp20x-i2c.c > index f49fbd307958..f061177cb18e 100644 > --- a/drivers/mfd/axp20x-i2c.c > +++ b/drivers/mfd/axp20x-i2c.c > @@ -63,6 +63,7 @@ static const struct of_device_id axp20x_i2c_of_match[] = { > { .compatible = "x-powers,axp209", .data = (void *)AXP209_ID }, > { .compatible = "x-powers,axp221", .data = (void *)AXP221_ID }, > { .compatible = "x-powers,axp223", .data = (void *)AXP223_ID }, > + { .compatible = "x-powers,axp313a", .data = (void *)AXP313A_ID}, Nit: Formatting error at the end of the line. > { .compatible = "x-powers,axp803", .data = (void *)AXP803_ID }, > { .compatible = "x-powers,axp806", .data = (void *)AXP806_ID }, > { }, > @@ -76,6 +77,7 @@ static const struct i2c_device_id axp20x_i2c_id[] = { > { "axp209", 0 }, > { "axp221", 0 }, > { "axp223", 0 }, > + { "axp313a", 0 }, > { "axp803", 0 }, > { "axp806", 0 }, > { }, > diff --git a/drivers/mfd/axp20x.c b/drivers/mfd/axp20x.c > index 01a6bbb6d266..ff15775f3c27 100644 > --- a/drivers/mfd/axp20x.c > +++ b/drivers/mfd/axp20x.c > @@ -39,6 +39,7 @@ static const char * const axp20x_model_names[] = { > "AXP221", > "AXP223", > "AXP288", > + "AXP313a", > "AXP803", > "AXP806", > "AXP809", > @@ -154,6 +155,24 @@ static const struct regmap_range axp806_writeable_ranges[] = { > regmap_reg_range(AXP806_REG_ADDR_EXT, AXP806_REG_ADDR_EXT), > }; > > +static const struct regmap_range axp313a_writeable_ranges[] = { > + regmap_reg_range(AXP313A_ON_INDICATE, AXP313A_IRQ_STATE), > +}; > + > +static const struct regmap_range axp313a_volatile_ranges[] = { > + regmap_reg_range(AXP313A_ON_INDICATE, AXP313A_IRQ_STATE), > +}; > + > +static const struct regmap_access_table axp313a_writeable_table = { > + .yes_ranges = axp313a_writeable_ranges, > + .n_yes_ranges = ARRAY_SIZE(axp313a_writeable_ranges), > +}; > + > +static const struct regmap_access_table axp313a_volatile_table = { > + .yes_ranges = axp313a_volatile_ranges, > + .n_yes_ranges = ARRAY_SIZE(axp313a_volatile_ranges), > +}; > + > static const struct regmap_range axp806_volatile_ranges[] = { > regmap_reg_range(AXP20X_IRQ1_STATE, AXP20X_IRQ2_STATE), > }; > @@ -272,6 +291,15 @@ static const struct regmap_config axp288_regmap_config = { > .cache_type = REGCACHE_RBTREE, > }; > > +static const struct regmap_config axp313a_regmap_config = { > + .reg_bits = 8, > + .val_bits = 8, > + .wr_table = &axp313a_writeable_table, > + .volatile_table = &axp313a_volatile_table, > + .max_register = AXP313A_IRQ_STATE, > + .cache_type = REGCACHE_RBTREE, > +}; > + > static const struct regmap_config axp806_regmap_config = { > .reg_bits = 8, > .val_bits = 8, > @@ -415,6 +443,16 @@ static const struct regmap_irq axp288_regmap_irqs[] = { > INIT_REGMAP_IRQ(AXP288, BC_USB_CHNG, 5, 1), > }; > > +static const struct regmap_irq axp313a_regmap_irqs[] = { > + INIT_REGMAP_IRQ(AXP313A, PEK_RIS_EDGE, 0, 7), > + INIT_REGMAP_IRQ(AXP313A, PEK_FAL_EDGE, 0, 6), > + INIT_REGMAP_IRQ(AXP313A, PEK_SHORT, 0, 5), > + INIT_REGMAP_IRQ(AXP313A, PEK_LONG, 0, 4), > + INIT_REGMAP_IRQ(AXP313A, DCDC3_V_LOW, 0, 3), > + INIT_REGMAP_IRQ(AXP313A, DCDC2_V_LOW, 0, 2), > + INIT_REGMAP_IRQ(AXP313A, DIE_TEMP_HIGH, 0, 0), > +}; > + > 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), > @@ -548,6 +586,17 @@ static const struct regmap_irq_chip axp288_regmap_irq_chip = { > > }; > > +static const struct regmap_irq_chip axp313a_regmap_irq_chip = { > + .name = "axp313a_irq_chip", > + .status_base = AXP313A_IRQ_STATE, > + .ack_base = AXP313A_IRQ_STATE, > + .unmask_base = AXP313A_IRQ_EN, > + .init_ack_masked = true, > + .irqs = axp313a_regmap_irqs, > + .num_irqs = ARRAY_SIZE(axp313a_regmap_irqs), > + .num_regs = 1, > +}; > + > static const struct regmap_irq_chip axp803_regmap_irq_chip = { > .name = "axp803", > .status_base = AXP20X_IRQ1_STATE, > @@ -676,6 +725,12 @@ static const struct mfd_cell axp152_cells[] = { > }, > }; > > +static struct mfd_cell axp313a_cells[] = { > + { > + .name = "axp20x-regulator", > + }, > +}; Where are the other devices that make this an MFD? Also, please use: MFD_CELL_NAME() > static const struct resource axp288_adc_resources[] = { > DEFINE_RES_IRQ_NAMED(AXP288_IRQ_GPADC, "GPADC"), > }; > @@ -892,6 +947,12 @@ int axp20x_match_device(struct axp20x_dev *axp20x) > axp20x->regmap_irq_chip = &axp288_regmap_irq_chip; > axp20x->irq_flags = IRQF_TRIGGER_LOW; > break; > + case AXP313A_ID: > + axp20x->nr_cells = ARRAY_SIZE(axp313a_cells); > + axp20x->cells = axp313a_cells; > + axp20x->regmap_cfg = &axp313a_regmap_config; > + axp20x->regmap_irq_chip = &axp313a_regmap_irq_chip; > + break; > case AXP803_ID: > axp20x->nr_cells = ARRAY_SIZE(axp803_cells); > axp20x->cells = axp803_cells; > diff --git a/include/linux/mfd/axp20x.h b/include/linux/mfd/axp20x.h > index 2058194807bd..12e4fc3e8391 100644 > --- a/include/linux/mfd/axp20x.h > +++ b/include/linux/mfd/axp20x.h > @@ -17,6 +17,7 @@ enum axp20x_variants { > AXP221_ID, > AXP223_ID, > AXP288_ID, > + AXP313A_ID, > AXP803_ID, > AXP806_ID, > AXP809_ID, > @@ -91,6 +92,17 @@ enum axp20x_variants { > #define AXP22X_ALDO3_V_OUT 0x2a > #define AXP22X_CHRG_CTRL3 0x35 > > +#define AXP313A_ON_INDICATE 0x00 > +#define AXP313A_OUTPUT_CONTROL 0x10 > +#define AXP313A_DCDC1_CONRTOL 0x13 > +#define AXP313A_DCDC2_CONRTOL 0x14 > +#define AXP313A_DCDC3_CONRTOL 0x15 > +#define AXP313A_ALDO1_CONRTOL 0x16 > +#define AXP313A_DLDO1_CONRTOL 0x17 > +#define AXP313A_OUTPUT_MONITOR 0x1d > +#define AXP313A_IRQ_EN 0x20 > +#define AXP313A_IRQ_STATE 0x21 > + > #define AXP806_STARTUP_SRC 0x00 > #define AXP806_CHIP_ID 0x03 > #define AXP806_PWR_OUT_CTRL1 0x10 > @@ -322,6 +334,16 @@ enum { > AXP22X_REG_ID_MAX, > }; > > +enum { > + AXP313A_DCDC1 = 0, > + AXP313A_DCDC2, > + AXP313A_DCDC3, > + AXP313A_LDO1, > + AXP313A_LDO2, > + AXP313A_RTC_LDO, > + AXP313A_REG_ID_MAX, > +}; > + > enum { > AXP806_DCDCA = 0, > AXP806_DCDCB, > @@ -548,6 +570,16 @@ enum axp288_irqs { > AXP288_IRQ_BC_USB_CHNG, > }; > > +enum axp313a_irqs { > + AXP313A_IRQ_DIE_TEMP_HIGH, > + AXP313A_IRQ_DCDC2_V_LOW = 2, > + AXP313A_IRQ_DCDC3_V_LOW, > + AXP313A_IRQ_PEK_LONG, > + AXP313A_IRQ_PEK_SHORT, > + AXP313A_IRQ_PEK_FAL_EDGE, > + AXP313A_IRQ_PEK_RIS_EDGE, > +}; > + > enum axp803_irqs { > AXP803_IRQ_ACIN_OVER_V = 1, > AXP803_IRQ_ACIN_PLUGIN, > -- > 2.39.0 > -- Lee Jones [李琼斯]