From e0f8ad2a705367518b5c56bf9d6da89681467c02 Mon Sep 17 00:00:00 2001 From: Shengyu Qu Date: Fri, 21 Apr 2023 23:08:15 +0800 Subject: mfd: axp20x: Add support for AXP15060 PMIC The AXP15060 is a PMIC chip produced by X-Powers, and could be connected via an I2C bus. Describe the regmap and the MFD bits, along with the registers exposed via I2C. Eventually advertise the device using a new compatible string and add support for power off the system. The driver would disable PEK function if IRQ is not configured in device tree, since some boards (For example, Starfive Visionfive 2) didn't connect IRQ line of PMIC to SOC. GPIO function isn't enabled in this commit, since its configuration operation is different from any existing AXP PMICs and needs logic modification on existing driver. GPIO support might come in later patches. Signed-off-by: Shengyu Qu Reviewed-by: Krzysztof Kozlowski Signed-off-by: Lee Jones Link: https://lore.kernel.org/r/TY3P286MB261162D57695AC8164ED50E298609@TY3P286MB2611.JPNP286.PROD.OUTLOOK.COM --- drivers/mfd/axp20x-i2c.c | 2 + drivers/mfd/axp20x.c | 107 +++++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 109 insertions(+) (limited to 'drivers/mfd') diff --git a/drivers/mfd/axp20x-i2c.c b/drivers/mfd/axp20x-i2c.c index f49fbd307958..b4f5cb457117 100644 --- a/drivers/mfd/axp20x-i2c.c +++ b/drivers/mfd/axp20x-i2c.c @@ -65,6 +65,7 @@ static const struct of_device_id axp20x_i2c_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,axp15060", .data = (void *)AXP15060_ID }, { }, }; MODULE_DEVICE_TABLE(of, axp20x_i2c_of_match); @@ -78,6 +79,7 @@ static const struct i2c_device_id axp20x_i2c_id[] = { { "axp223", 0 }, { "axp803", 0 }, { "axp806", 0 }, + { "axp15060", 0 }, { }, }; MODULE_DEVICE_TABLE(i2c, axp20x_i2c_id); diff --git a/drivers/mfd/axp20x.c b/drivers/mfd/axp20x.c index 7720ac15c7d4..72b87aae60cc 100644 --- a/drivers/mfd/axp20x.c +++ b/drivers/mfd/axp20x.c @@ -43,6 +43,7 @@ static const char * const axp20x_model_names[] = { "AXP806", "AXP809", "AXP813", + "AXP15060", }; static const struct regmap_range axp152_writeable_ranges[] = { @@ -169,6 +170,31 @@ static const struct regmap_access_table axp806_volatile_table = { .n_yes_ranges = ARRAY_SIZE(axp806_volatile_ranges), }; +static const struct regmap_range axp15060_writeable_ranges[] = { + regmap_reg_range(AXP15060_PWR_OUT_CTRL1, AXP15060_DCDC_MODE_CTRL2), + regmap_reg_range(AXP15060_OUTPUT_MONITOR_DISCHARGE, AXP15060_CPUSLDO_V_CTRL), + regmap_reg_range(AXP15060_PWR_WAKEUP_CTRL, AXP15060_PWR_DISABLE_DOWN_SEQ), + regmap_reg_range(AXP15060_PEK_KEY, AXP15060_PEK_KEY), + regmap_reg_range(AXP15060_IRQ1_EN, AXP15060_IRQ2_EN), + regmap_reg_range(AXP15060_IRQ1_STATE, AXP15060_IRQ2_STATE), +}; + +static const struct regmap_range axp15060_volatile_ranges[] = { + regmap_reg_range(AXP15060_STARTUP_SRC, AXP15060_STARTUP_SRC), + regmap_reg_range(AXP15060_PWR_WAKEUP_CTRL, AXP15060_PWR_DISABLE_DOWN_SEQ), + regmap_reg_range(AXP15060_IRQ1_STATE, AXP15060_IRQ2_STATE), +}; + +static const struct regmap_access_table axp15060_writeable_table = { + .yes_ranges = axp15060_writeable_ranges, + .n_yes_ranges = ARRAY_SIZE(axp15060_writeable_ranges), +}; + +static const struct regmap_access_table axp15060_volatile_table = { + .yes_ranges = axp15060_volatile_ranges, + .n_yes_ranges = ARRAY_SIZE(axp15060_volatile_ranges), +}; + static const 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"), @@ -237,6 +263,11 @@ static const struct resource axp809_pek_resources[] = { DEFINE_RES_IRQ_NAMED(AXP809_IRQ_PEK_FAL_EDGE, "PEK_DBF"), }; +static const struct resource axp15060_pek_resources[] = { + DEFINE_RES_IRQ_NAMED(AXP15060_IRQ_PEK_RIS_EDGE, "PEK_DBR"), + DEFINE_RES_IRQ_NAMED(AXP15060_IRQ_PEK_FAL_EDGE, "PEK_DBF"), +}; + static const struct regmap_config axp152_regmap_config = { .reg_bits = 8, .val_bits = 8, @@ -282,6 +313,15 @@ static const struct regmap_config axp806_regmap_config = { .cache_type = REGCACHE_RBTREE, }; +static const struct regmap_config axp15060_regmap_config = { + .reg_bits = 8, + .val_bits = 8, + .wr_table = &axp15060_writeable_table, + .volatile_table = &axp15060_volatile_table, + .max_register = AXP15060_IRQ2_STATE, + .cache_type = REGCACHE_RBTREE, +}; + #define INIT_REGMAP_IRQ(_variant, _irq, _off, _mask) \ [_variant##_IRQ_##_irq] = { .reg_offset = (_off), .mask = BIT(_mask) } @@ -503,6 +543,23 @@ static const struct regmap_irq axp809_regmap_irqs[] = { INIT_REGMAP_IRQ(AXP809, GPIO0_INPUT, 4, 0), }; +static const struct regmap_irq axp15060_regmap_irqs[] = { + INIT_REGMAP_IRQ(AXP15060, DIE_TEMP_HIGH_LV1, 0, 0), + INIT_REGMAP_IRQ(AXP15060, DIE_TEMP_HIGH_LV2, 0, 1), + INIT_REGMAP_IRQ(AXP15060, DCDC1_V_LOW, 0, 2), + INIT_REGMAP_IRQ(AXP15060, DCDC2_V_LOW, 0, 3), + INIT_REGMAP_IRQ(AXP15060, DCDC3_V_LOW, 0, 4), + INIT_REGMAP_IRQ(AXP15060, DCDC4_V_LOW, 0, 5), + INIT_REGMAP_IRQ(AXP15060, DCDC5_V_LOW, 0, 6), + INIT_REGMAP_IRQ(AXP15060, DCDC6_V_LOW, 0, 7), + INIT_REGMAP_IRQ(AXP15060, PEK_LONG, 1, 0), + INIT_REGMAP_IRQ(AXP15060, PEK_SHORT, 1, 1), + INIT_REGMAP_IRQ(AXP15060, GPIO1_INPUT, 1, 2), + INIT_REGMAP_IRQ(AXP15060, PEK_FAL_EDGE, 1, 3), + INIT_REGMAP_IRQ(AXP15060, PEK_RIS_EDGE, 1, 4), + INIT_REGMAP_IRQ(AXP15060, GPIO2_INPUT, 1, 5), +}; + static const struct regmap_irq_chip axp152_regmap_irq_chip = { .name = "axp152_irq_chip", .status_base = AXP152_IRQ1_STATE, @@ -582,6 +639,17 @@ static const struct regmap_irq_chip axp809_regmap_irq_chip = { .num_regs = 5, }; +static const struct regmap_irq_chip axp15060_regmap_irq_chip = { + .name = "axp15060", + .status_base = AXP15060_IRQ1_STATE, + .ack_base = AXP15060_IRQ1_STATE, + .unmask_base = AXP15060_IRQ1_EN, + .init_ack_masked = true, + .irqs = axp15060_regmap_irqs, + .num_irqs = ARRAY_SIZE(axp15060_regmap_irqs), + .num_regs = 2, +}; + static const struct mfd_cell axp20x_cells[] = { { .name = "axp20x-gpio", @@ -826,6 +894,23 @@ static const struct mfd_cell axp813_cells[] = { }, }; +static const struct mfd_cell axp15060_cells[] = { + { + .name = "axp221-pek", + .num_resources = ARRAY_SIZE(axp15060_pek_resources), + .resources = axp15060_pek_resources, + }, { + .name = "axp20x-regulator", + }, +}; + +/* For boards that don't have IRQ line connected to SOC. */ +static const struct mfd_cell axp_regulator_only_cells[] = { + { + .name = "axp20x-regulator", + }, +}; + static int axp20x_power_off(struct sys_off_data *data) { struct axp20x_dev *axp20x = data->cb_data; @@ -935,6 +1020,28 @@ int axp20x_match_device(struct axp20x_dev *axp20x) */ axp20x->regmap_irq_chip = &axp803_regmap_irq_chip; break; + case AXP15060_ID: + /* + * Don't register the power key part if there is no interrupt + * line. + * + * Since most use cases of AXP PMICs are Allwinner SOCs, board + * designers follow Allwinner's reference design and connects + * IRQ line to SOC, there's no need for those variants to deal + * with cases that IRQ isn't connected. However, AXP15660 is + * used by some other vendors' SOCs that didn't connect IRQ + * line, we need to deal with this case. + */ + if (axp20x->irq > 0) { + axp20x->nr_cells = ARRAY_SIZE(axp15060_cells); + axp20x->cells = axp15060_cells; + } else { + axp20x->nr_cells = ARRAY_SIZE(axp_regulator_only_cells); + axp20x->cells = axp_regulator_only_cells; + } + axp20x->regmap_cfg = &axp15060_regmap_config; + axp20x->regmap_irq_chip = &axp15060_regmap_irq_chip; + break; default: dev_err(dev, "unsupported AXP20X ID %lu\n", axp20x->variant); return -EINVAL; -- cgit v1.2.3