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SubjectRe: [PATCH v4 06/15] mfd: axp20x: Add support for AXP192
On Wed, 29 Jun 2022, Aidan MacDonald wrote:

> The AXP192 PMIC is similar to the AXP202/AXP209, but with different
> regulators, additional GPIOs, and a different IRQ register layout.
>
> Acked-for-MFD-by: Lee Jones <lee.jones@linaro.org>
> Signed-off-by: Aidan MacDonald <aidanmacdonald.0x0@gmail.com>
> ---
> drivers/mfd/axp20x-i2c.c | 2 +
> drivers/mfd/axp20x.c | 152 +++++++++++++++++++++++++++++++++++++
> include/linux/mfd/axp20x.h | 84 ++++++++++++++++++++
> 3 files changed, 238 insertions(+)
>
> diff --git a/drivers/mfd/axp20x-i2c.c b/drivers/mfd/axp20x-i2c.c
> index 00ab48018d8d..9ada58fad77f 100644
> --- a/drivers/mfd/axp20x-i2c.c
> +++ b/drivers/mfd/axp20x-i2c.c
> @@ -62,6 +62,7 @@ static int axp20x_i2c_remove(struct i2c_client *i2c)
> #ifdef CONFIG_OF
> static const struct of_device_id axp20x_i2c_of_match[] = {
> { .compatible = "x-powers,axp152", .data = (void *)AXP152_ID },
> + { .compatible = "x-powers,axp192", .data = (void *)AXP192_ID },
> { .compatible = "x-powers,axp202", .data = (void *)AXP202_ID },
> { .compatible = "x-powers,axp209", .data = (void *)AXP209_ID },
> { .compatible = "x-powers,axp221", .data = (void *)AXP221_ID },
> @@ -75,6 +76,7 @@ MODULE_DEVICE_TABLE(of, axp20x_i2c_of_match);
>
> static const struct i2c_device_id axp20x_i2c_id[] = {
> { "axp152", 0 },
> + { "axp192", 0 },
> { "axp202", 0 },
> { "axp209", 0 },
> { "axp221", 0 },
> diff --git a/drivers/mfd/axp20x.c b/drivers/mfd/axp20x.c
> index 8161a5dc68e8..6ab2a1f8888c 100644
> --- a/drivers/mfd/axp20x.c
> +++ b/drivers/mfd/axp20x.c
> @@ -34,6 +34,7 @@
>
> static const char * const axp20x_model_names[] = {
> "AXP152",
> + "AXP192",
> "AXP202",
> "AXP209",
> "AXP221",
> @@ -92,6 +93,35 @@ static const struct regmap_access_table axp20x_volatile_table = {
> .n_yes_ranges = ARRAY_SIZE(axp20x_volatile_ranges),
> };
>
> +static const struct regmap_range axp192_writeable_ranges[] = {
> + regmap_reg_range(AXP192_DATACACHE(0), AXP192_DATACACHE(5)),
> + regmap_reg_range(AXP192_PWR_OUT_CTRL, AXP192_IRQ5_STATE),
> + regmap_reg_range(AXP20X_DCDC_MODE, AXP192_N_RSTO_CTRL),
> + regmap_reg_range(AXP20X_CC_CTRL, AXP20X_CC_CTRL),
> +};
> +
> +static const struct regmap_range axp192_volatile_ranges[] = {
> + regmap_reg_range(AXP20X_PWR_INPUT_STATUS, AXP192_USB_OTG_STATUS),
> + regmap_reg_range(AXP192_IRQ1_STATE, AXP192_IRQ4_STATE),
> + regmap_reg_range(AXP192_IRQ5_STATE, AXP192_IRQ5_STATE),
> + regmap_reg_range(AXP20X_ACIN_V_ADC_H, AXP20X_IPSOUT_V_HIGH_L),
> + regmap_reg_range(AXP20X_TIMER_CTRL, AXP20X_TIMER_CTRL),
> + regmap_reg_range(AXP192_GPIO2_0_STATE, AXP192_GPIO2_0_STATE),
> + regmap_reg_range(AXP192_GPIO4_3_STATE, AXP192_GPIO4_3_STATE),
> + regmap_reg_range(AXP192_N_RSTO_CTRL, AXP192_N_RSTO_CTRL),
> + regmap_reg_range(AXP20X_CHRG_CC_31_24, AXP20X_CC_CTRL),
> +};
> +
> +static const struct regmap_access_table axp192_writeable_table = {
> + .yes_ranges = axp192_writeable_ranges,
> + .n_yes_ranges = ARRAY_SIZE(axp192_writeable_ranges),
> +};
> +
> +static const struct regmap_access_table axp192_volatile_table = {
> + .yes_ranges = axp192_volatile_ranges,
> + .n_yes_ranges = ARRAY_SIZE(axp192_volatile_ranges),
> +};
> +
> /* AXP22x ranges are shared with the AXP809, as they cover the same range */
> static const struct regmap_range axp22x_writeable_ranges[] = {
> regmap_reg_range(AXP20X_DATACACHE(0), AXP20X_IRQ5_STATE),
> @@ -173,6 +203,25 @@ static const struct resource axp152_pek_resources[] = {
> DEFINE_RES_IRQ_NAMED(AXP152_IRQ_PEK_FAL_EDGE, "PEK_DBF"),
> };
>
> +static const struct resource axp192_gpio_resources[] = {
> + DEFINE_RES_IRQ_NAMED(AXP192_IRQ_GPIO0_INPUT, "GPIO0"),
> + DEFINE_RES_IRQ_NAMED(AXP192_IRQ_GPIO1_INPUT, "GPIO1"),
> + DEFINE_RES_IRQ_NAMED(AXP192_IRQ_GPIO2_INPUT, "GPIO2"),
> +};
> +
> +static const struct resource axp192_ac_power_supply_resources[] = {
> + DEFINE_RES_IRQ_NAMED(AXP192_IRQ_ACIN_PLUGIN, "ACIN_PLUGIN"),
> + DEFINE_RES_IRQ_NAMED(AXP192_IRQ_ACIN_REMOVAL, "ACIN_REMOVAL"),
> + DEFINE_RES_IRQ_NAMED(AXP192_IRQ_ACIN_OVER_V, "ACIN_OVER_V"),
> +};
> +
> +static const struct resource axp192_usb_power_supply_resources[] = {
> + DEFINE_RES_IRQ_NAMED(AXP192_IRQ_VBUS_PLUGIN, "VBUS_PLUGIN"),
> + DEFINE_RES_IRQ_NAMED(AXP192_IRQ_VBUS_REMOVAL, "VBUS_REMOVAL"),
> + DEFINE_RES_IRQ_NAMED(AXP192_IRQ_VBUS_VALID, "VBUS_VALID"),
> + DEFINE_RES_IRQ_NAMED(AXP192_IRQ_VBUS_NOT_VALID, "VBUS_NOT_VALID"),
> +};
> +
> static const struct resource axp20x_ac_power_supply_resources[] = {
> DEFINE_RES_IRQ_NAMED(AXP20X_IRQ_ACIN_PLUGIN, "ACIN_PLUGIN"),
> DEFINE_RES_IRQ_NAMED(AXP20X_IRQ_ACIN_REMOVAL, "ACIN_REMOVAL"),
> @@ -245,6 +294,15 @@ static const struct regmap_config axp152_regmap_config = {
> .cache_type = REGCACHE_RBTREE,
> };
>
> +static const struct regmap_config axp192_regmap_config = {
> + .reg_bits = 8,
> + .val_bits = 8,
> + .wr_table = &axp192_writeable_table,
> + .volatile_table = &axp192_volatile_table,
> + .max_register = AXP20X_CC_CTRL,
> + .cache_type = REGCACHE_RBTREE,
> +};
> +
> static const struct regmap_config axp20x_regmap_config = {
> .reg_bits = 8,
> .val_bits = 8,
> @@ -304,6 +362,42 @@ static const struct regmap_irq axp152_regmap_irqs[] = {
> INIT_REGMAP_IRQ(AXP152, GPIO0_INPUT, 2, 0),
> };
>
> +static const struct regmap_irq axp192_regmap_irqs[] = {
> + INIT_REGMAP_IRQ(AXP192, ACIN_OVER_V, 0, 7),
> + INIT_REGMAP_IRQ(AXP192, ACIN_PLUGIN, 0, 6),
> + INIT_REGMAP_IRQ(AXP192, ACIN_REMOVAL, 0, 5),
> + INIT_REGMAP_IRQ(AXP192, VBUS_OVER_V, 0, 4),
> + INIT_REGMAP_IRQ(AXP192, VBUS_PLUGIN, 0, 3),
> + INIT_REGMAP_IRQ(AXP192, VBUS_REMOVAL, 0, 2),
> + INIT_REGMAP_IRQ(AXP192, VBUS_V_LOW, 0, 1),
> + INIT_REGMAP_IRQ(AXP192, BATT_PLUGIN, 1, 7),
> + INIT_REGMAP_IRQ(AXP192, BATT_REMOVAL, 1, 6),
> + INIT_REGMAP_IRQ(AXP192, BATT_ENT_ACT_MODE, 1, 5),
> + INIT_REGMAP_IRQ(AXP192, BATT_EXIT_ACT_MODE, 1, 4),
> + INIT_REGMAP_IRQ(AXP192, CHARG, 1, 3),
> + INIT_REGMAP_IRQ(AXP192, CHARG_DONE, 1, 2),
> + INIT_REGMAP_IRQ(AXP192, BATT_TEMP_HIGH, 1, 1),
> + INIT_REGMAP_IRQ(AXP192, BATT_TEMP_LOW, 1, 0),
> + INIT_REGMAP_IRQ(AXP192, DIE_TEMP_HIGH, 2, 7),
> + INIT_REGMAP_IRQ(AXP192, CHARG_I_LOW, 2, 6),
> + INIT_REGMAP_IRQ(AXP192, DCDC1_V_LONG, 2, 5),
> + INIT_REGMAP_IRQ(AXP192, DCDC2_V_LONG, 2, 4),
> + INIT_REGMAP_IRQ(AXP192, DCDC3_V_LONG, 2, 3),
> + INIT_REGMAP_IRQ(AXP192, PEK_SHORT, 2, 1),
> + INIT_REGMAP_IRQ(AXP192, PEK_LONG, 2, 0),
> + INIT_REGMAP_IRQ(AXP192, N_OE_PWR_ON, 3, 7),
> + INIT_REGMAP_IRQ(AXP192, N_OE_PWR_OFF, 3, 6),
> + INIT_REGMAP_IRQ(AXP192, VBUS_VALID, 3, 5),
> + INIT_REGMAP_IRQ(AXP192, VBUS_NOT_VALID, 3, 4),
> + INIT_REGMAP_IRQ(AXP192, VBUS_SESS_VALID, 3, 3),
> + INIT_REGMAP_IRQ(AXP192, VBUS_SESS_END, 3, 2),
> + INIT_REGMAP_IRQ(AXP192, LOW_PWR_LVL, 3, 0),
> + INIT_REGMAP_IRQ(AXP192, TIMER, 4, 7),
> + INIT_REGMAP_IRQ(AXP192, GPIO2_INPUT, 4, 2),
> + INIT_REGMAP_IRQ(AXP192, GPIO1_INPUT, 4, 1),
> + INIT_REGMAP_IRQ(AXP192, GPIO0_INPUT, 4, 0),
> +};
> +
> static const struct regmap_irq axp20x_regmap_irqs[] = {
> INIT_REGMAP_IRQ(AXP20X, ACIN_OVER_V, 0, 7),
> INIT_REGMAP_IRQ(AXP20X, ACIN_PLUGIN, 0, 6),
> @@ -514,6 +608,32 @@ static const struct regmap_irq_chip axp152_regmap_irq_chip = {
> .num_regs = 3,
> };
>
> +static unsigned int axp192_get_irq_reg(struct regmap_irq_chip_data *data,
> + unsigned int base, int index)
> +{
> + /* linear mapping for IRQ1 to IRQ4 */
> + if (index < 4)
> + return base + index;
> +
> + /* handle IRQ5 separately */
> + if (base == AXP192_IRQ1_EN)
> + return AXP192_IRQ5_EN;
> +
> + return AXP192_IRQ5_STATE;
> +}
> +
> +static const struct regmap_irq_chip axp192_regmap_irq_chip = {
> + .name = "axp192_irq_chip",
> + .status_base = AXP192_IRQ1_STATE,
> + .ack_base = AXP192_IRQ1_STATE,
> + .unmask_base = AXP192_IRQ1_EN,
> + .init_ack_masked = true,
> + .irqs = axp192_regmap_irqs,
> + .num_irqs = ARRAY_SIZE(axp192_regmap_irqs),
> + .num_regs = 5,
> + .get_irq_reg = axp192_get_irq_reg,

Fix me:

drivers/mfd/axp20x.c:634:35: error: initialization of 'unsigned int (*)(struct regmap_irq_chip_data *, unsigned int, int)' from incompatible pointer type 'int (*)(unsigned int, int)' [-Werror=incompatible-pointer-types]
634 | .get_irq_reg = axp192_get_irq_reg,
| ^~~~~~~~~~~~~~~~~~
drivers/mfd/axp20x.c:634:35: note: (near initialization for 'axp192_regmap_irq_chip.get_irq_reg')

> +};
> +
> static const struct regmap_irq_chip axp20x_regmap_irq_chip = {
> .name = "axp20x_irq_chip",
> .status_base = AXP20X_IRQ1_STATE,
> @@ -588,6 +708,32 @@ static const struct regmap_irq_chip axp809_regmap_irq_chip = {
> .num_regs = 5,
> };
>
> +static const struct mfd_cell axp192_cells[] = {
> + {
> + .name = "axp192-gpio",
> + .of_compatible = "x-powers,axp192-gpio",
> + .num_resources = ARRAY_SIZE(axp192_gpio_resources),
> + .resources = axp192_gpio_resources,
> + }, {
> + .name = "axp192-adc",
> + .of_compatible = "x-powers,axp192-adc",
> + }, {
> + .name = "axp20x-battery-power-supply",
> + .of_compatible = "x-powers,axp192-battery-power-supply",
> + }, {
> + .name = "axp20x-ac-power-supply",
> + .of_compatible = "x-powers,axp202-ac-power-supply",
> + .num_resources = ARRAY_SIZE(axp192_ac_power_supply_resources),
> + .resources = axp192_ac_power_supply_resources,
> + }, {
> + .name = "axp20x-usb-power-supply",
> + .of_compatible = "x-powers,axp192-usb-power-supply",
> + .num_resources = ARRAY_SIZE(axp192_usb_power_supply_resources),
> + .resources = axp192_usb_power_supply_resources,
> + },
> + { .name = "axp20x-regulator" },
> +};
> +
> static const struct mfd_cell axp20x_cells[] = {
> {
> .name = "axp20x-gpio",
> @@ -865,6 +1011,12 @@ int axp20x_match_device(struct axp20x_dev *axp20x)
> axp20x->regmap_cfg = &axp152_regmap_config;
> axp20x->regmap_irq_chip = &axp152_regmap_irq_chip;
> break;
> + case AXP192_ID:
> + axp20x->nr_cells = ARRAY_SIZE(axp192_cells);
> + axp20x->cells = axp192_cells;
> + axp20x->regmap_cfg = &axp192_regmap_config;
> + axp20x->regmap_irq_chip = &axp192_regmap_irq_chip;
> + break;
> case AXP202_ID:
> case AXP209_ID:
> axp20x->nr_cells = ARRAY_SIZE(axp20x_cells);
> diff --git a/include/linux/mfd/axp20x.h b/include/linux/mfd/axp20x.h
> index 9ab0e2fca7ea..c9a9ee8ec246 100644
> --- a/include/linux/mfd/axp20x.h
> +++ b/include/linux/mfd/axp20x.h
> @@ -12,6 +12,7 @@
>
> enum axp20x_variants {
> AXP152_ID = 0,
> + AXP192_ID,
> AXP202_ID,
> AXP209_ID,
> AXP221_ID,
> @@ -24,6 +25,7 @@ enum axp20x_variants {
> NR_AXP20X_VARIANTS,
> };
>
> +#define AXP192_DATACACHE(m) (0x06 + (m))
> #define AXP20X_DATACACHE(m) (0x04 + (m))
>
> /* Power supply */
> @@ -45,6 +47,13 @@ enum axp20x_variants {
> #define AXP152_DCDC_FREQ 0x37
> #define AXP152_DCDC_MODE 0x80
>
> +#define AXP192_USB_OTG_STATUS 0x04
> +#define AXP192_PWR_OUT_CTRL 0x12
> +#define AXP192_DCDC2_V_OUT 0x23
> +#define AXP192_DCDC1_V_OUT 0x26
> +#define AXP192_DCDC3_V_OUT 0x27
> +#define AXP192_LDO2_3_V_OUT 0x28
> +
> #define AXP20X_PWR_INPUT_STATUS 0x00
> #define AXP20X_PWR_OP_MODE 0x01
> #define AXP20X_USB_OTG_STATUS 0x02
> @@ -139,6 +148,17 @@ enum axp20x_variants {
> #define AXP152_IRQ2_STATE 0x49
> #define AXP152_IRQ3_STATE 0x4a
>
> +#define AXP192_IRQ1_EN 0x40
> +#define AXP192_IRQ2_EN 0x41
> +#define AXP192_IRQ3_EN 0x42
> +#define AXP192_IRQ4_EN 0x43
> +#define AXP192_IRQ1_STATE 0x44
> +#define AXP192_IRQ2_STATE 0x45
> +#define AXP192_IRQ3_STATE 0x46
> +#define AXP192_IRQ4_STATE 0x47
> +#define AXP192_IRQ5_EN 0x4a
> +#define AXP192_IRQ5_STATE 0x4d
> +
> #define AXP20X_IRQ1_EN 0x40
> #define AXP20X_IRQ2_EN 0x41
> #define AXP20X_IRQ3_EN 0x42
> @@ -153,6 +173,11 @@ enum axp20x_variants {
> #define AXP20X_IRQ6_STATE 0x4d
>
> /* ADC */
> +#define AXP192_GPIO2_V_ADC_H 0x68
> +#define AXP192_GPIO2_V_ADC_L 0x69
> +#define AXP192_GPIO3_V_ADC_H 0x6a
> +#define AXP192_GPIO3_V_ADC_L 0x6b
> +
> #define AXP20X_ACIN_V_ADC_H 0x56
> #define AXP20X_ACIN_V_ADC_L 0x57
> #define AXP20X_ACIN_I_ADC_H 0x58
> @@ -182,6 +207,8 @@ enum axp20x_variants {
> #define AXP20X_IPSOUT_V_HIGH_L 0x7f
>
> /* Power supply */
> +#define AXP192_GPIO30_IN_RANGE 0x85
> +
> #define AXP20X_DCDC_MODE 0x80
> #define AXP20X_ADC_EN1 0x82
> #define AXP20X_ADC_EN2 0x83
> @@ -210,6 +237,16 @@ enum axp20x_variants {
> #define AXP152_PWM1_FREQ_Y 0x9c
> #define AXP152_PWM1_DUTY_CYCLE 0x9d
>
> +#define AXP192_GPIO0_CTRL 0x90
> +#define AXP192_LDO_IO0_V_OUT 0x91
> +#define AXP192_GPIO1_CTRL 0x92
> +#define AXP192_GPIO2_CTRL 0x93
> +#define AXP192_GPIO2_0_STATE 0x94
> +#define AXP192_GPIO4_3_CTRL 0x95
> +#define AXP192_GPIO4_3_STATE 0x96
> +#define AXP192_GPIO2_0_PULL 0x97
> +#define AXP192_N_RSTO_CTRL 0x9e
> +
> #define AXP20X_GPIO0_CTRL 0x90
> #define AXP20X_LDO5_V_OUT 0x91
> #define AXP20X_GPIO1_CTRL 0x92
> @@ -287,6 +324,17 @@ enum axp20x_variants {
> #define AXP288_FG_TUNE5 0xed
>
> /* Regulators IDs */
> +enum {
> + AXP192_DCDC1 = 0,
> + AXP192_DCDC2,
> + AXP192_DCDC3,
> + AXP192_LDO1,
> + AXP192_LDO2,
> + AXP192_LDO3,
> + AXP192_LDO_IO0,
> + AXP192_REG_ID_MAX
> +};
> +
> enum {
> AXP20X_LDO1 = 0,
> AXP20X_LDO2,
> @@ -440,6 +488,42 @@ enum {
> AXP152_IRQ_GPIO0_INPUT,
> };
>
> +enum axp192_irqs {
> + AXP192_IRQ_ACIN_OVER_V = 1,
> + AXP192_IRQ_ACIN_PLUGIN,
> + AXP192_IRQ_ACIN_REMOVAL,
> + AXP192_IRQ_VBUS_OVER_V,
> + AXP192_IRQ_VBUS_PLUGIN,
> + AXP192_IRQ_VBUS_REMOVAL,
> + AXP192_IRQ_VBUS_V_LOW,
> + AXP192_IRQ_BATT_PLUGIN,
> + AXP192_IRQ_BATT_REMOVAL,
> + AXP192_IRQ_BATT_ENT_ACT_MODE,
> + AXP192_IRQ_BATT_EXIT_ACT_MODE,
> + AXP192_IRQ_CHARG,
> + AXP192_IRQ_CHARG_DONE,
> + AXP192_IRQ_BATT_TEMP_HIGH,
> + AXP192_IRQ_BATT_TEMP_LOW,
> + AXP192_IRQ_DIE_TEMP_HIGH,
> + AXP192_IRQ_CHARG_I_LOW,
> + AXP192_IRQ_DCDC1_V_LONG,
> + AXP192_IRQ_DCDC2_V_LONG,
> + AXP192_IRQ_DCDC3_V_LONG,
> + AXP192_IRQ_PEK_SHORT = 22,
> + AXP192_IRQ_PEK_LONG,
> + AXP192_IRQ_N_OE_PWR_ON,
> + AXP192_IRQ_N_OE_PWR_OFF,
> + AXP192_IRQ_VBUS_VALID,
> + AXP192_IRQ_VBUS_NOT_VALID,
> + AXP192_IRQ_VBUS_SESS_VALID,
> + AXP192_IRQ_VBUS_SESS_END,
> + AXP192_IRQ_LOW_PWR_LVL = 31,
> + AXP192_IRQ_TIMER,
> + AXP192_IRQ_GPIO2_INPUT = 37,
> + AXP192_IRQ_GPIO1_INPUT,
> + AXP192_IRQ_GPIO0_INPUT,
> +};
> +
> enum {
> AXP20X_IRQ_ACIN_OVER_V = 1,
> AXP20X_IRQ_ACIN_PLUGIN,

--
Lee Jones [李琼斯]
Principal Technical Lead - Developer Services
Linaro.org │ Open source software for Arm SoCs
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