Re: [PATCH v2 2/8] mfd: axp20x: Add support for AXP806 PMIC

From: Lee Jones
Date: Wed Aug 31 2016 - 08:10:26 EST

On Sat, 27 Aug 2016, Chen-Yu Tsai wrote:

> The X-Powers AXP806 is a new PMIC that is paired with Allwinner's A80
> SoC, along with a master AXP809 PMIC.
>
> This PMIC has a new register layout, and supports some functions not
> seen in other X-Powers PMICs, such as master-slave mode, or having
> multiple AXP806 PMICs on the same bus with address space extension,
> or supporting both I2C and RSB mode. I2C has not been tested.
>
> This patch adds support for the interrupts of the PMIC. A regulator
> sub-device is enabled, but actual regulator support will come in a
> later patch.
>
> Signed-off-by: Chen-Yu Tsai <wens@xxxxxxxx>
> ---
> Changes since v1: none
> ---
> drivers/mfd/axp20x-rsb.c | 1 +
> drivers/mfd/axp20x.c | 72 ++++++++++++++++++++++++++++++++++++++++++++++
> include/linux/mfd/axp20x.h | 60 ++++++++++++++++++++++++++++++++++++++
> 3 files changed, 133 insertions(+)

Applied, thanks.

> diff --git a/drivers/mfd/axp20x-rsb.c b/drivers/mfd/axp20x-rsb.c
> index a407527bcd09..a732cb50bcff 100644
> --- a/drivers/mfd/axp20x-rsb.c
> +++ b/drivers/mfd/axp20x-rsb.c
> @@ -61,6 +61,7 @@ static int axp20x_rsb_remove(struct sunxi_rsb_device *rdev)
>
> static const struct of_device_id axp20x_rsb_of_match[] = {
> { .compatible = "x-powers,axp223", .data = (void *)AXP223_ID },
> + { .compatible = "x-powers,axp806", .data = (void *)AXP806_ID },
> { .compatible = "x-powers,axp809", .data = (void *)AXP809_ID },
> { },
> };
> diff --git a/drivers/mfd/axp20x.c b/drivers/mfd/axp20x.c
> index fd80b0981f0f..96102753847f 100644
> --- a/drivers/mfd/axp20x.c
> +++ b/drivers/mfd/axp20x.c
> @@ -38,6 +38,7 @@ static const char * const axp20x_model_names[] = {
> "AXP221",
> "AXP223",
> "AXP288",
> + "AXP806",
> "AXP809",
> };
>
> @@ -129,6 +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"),
> @@ -278,6 +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) }
>
> @@ -409,6 +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),
> @@ -494,6 +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,
> @@ -660,12 +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",
> },
> };
> @@ -732,6 +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;
> diff --git a/include/linux/mfd/axp20x.h b/include/linux/mfd/axp20x.h
> index 0be4982f08fe..fec597fb34cb 100644
> --- a/include/linux/mfd/axp20x.h
> +++ b/include/linux/mfd/axp20x.h
> @@ -20,6 +20,7 @@ enum {
> AXP221_ID,
> AXP223_ID,
> AXP288_ID,
> + AXP806_ID,
> AXP809_ID,
> NR_AXP20X_VARIANTS,
> };
> @@ -91,6 +92,30 @@ enum {
> #define AXP22X_ALDO3_V_OUT 0x2a
> #define AXP22X_CHRG_CTRL3 0x35
>
> +#define AXP806_STARTUP_SRC 0x00
> +#define AXP806_CHIP_ID 0x03
> +#define AXP806_PWR_OUT_CTRL1 0x10
> +#define AXP806_PWR_OUT_CTRL2 0x11
> +#define AXP806_DCDCA_V_CTRL 0x12
> +#define AXP806_DCDCB_V_CTRL 0x13
> +#define AXP806_DCDCC_V_CTRL 0x14
> +#define AXP806_DCDCD_V_CTRL 0x15
> +#define AXP806_DCDCE_V_CTRL 0x16
> +#define AXP806_ALDO1_V_CTRL 0x17
> +#define AXP806_ALDO2_V_CTRL 0x18
> +#define AXP806_ALDO3_V_CTRL 0x19
> +#define AXP806_DCDC_MODE_CTRL1 0x1a
> +#define AXP806_DCDC_MODE_CTRL2 0x1b
> +#define AXP806_DCDC_FREQ_CTRL 0x1c
> +#define AXP806_BLDO1_V_CTRL 0x20
> +#define AXP806_BLDO2_V_CTRL 0x21
> +#define AXP806_BLDO3_V_CTRL 0x22
> +#define AXP806_BLDO4_V_CTRL 0x23
> +#define AXP806_CLDO1_V_CTRL 0x24
> +#define AXP806_CLDO2_V_CTRL 0x25
> +#define AXP806_CLDO3_V_CTRL 0x26
> +#define AXP806_VREF_TEMP_WARN_L 0xf3
> +
> /* Interrupt */
> #define AXP152_IRQ1_EN 0x40
> #define AXP152_IRQ2_EN 0x41
> @@ -266,6 +291,26 @@ enum {
> };
>
> enum {
> + AXP806_DCDCA = 0,
> + AXP806_DCDCB,
> + AXP806_DCDCC,
> + AXP806_DCDCD,
> + AXP806_DCDCE,
> + AXP806_ALDO1,
> + AXP806_ALDO2,
> + AXP806_ALDO3,
> + AXP806_BLDO1,
> + AXP806_BLDO2,
> + AXP806_BLDO3,
> + AXP806_BLDO4,
> + AXP806_CLDO1,
> + AXP806_CLDO2,
> + AXP806_CLDO3,
> + AXP806_SW,
> + AXP806_REG_ID_MAX,
> +};
> +
> +enum {
> AXP809_DCDC1 = 0,
> AXP809_DCDC2,
> AXP809_DCDC3,
> @@ -414,6 +459,21 @@ enum axp288_irqs {
> AXP288_IRQ_BC_USB_CHNG,
> };
>
> +enum axp806_irqs {
> + AXP806_IRQ_DIE_TEMP_HIGH_LV1,
> + AXP806_IRQ_DIE_TEMP_HIGH_LV2,
> + AXP806_IRQ_DCDCA_V_LOW,
> + AXP806_IRQ_DCDCB_V_LOW,
> + AXP806_IRQ_DCDCC_V_LOW,
> + AXP806_IRQ_DCDCD_V_LOW,
> + AXP806_IRQ_DCDCE_V_LOW,
> + AXP806_IRQ_PWROK_LONG,
> + AXP806_IRQ_PWROK_SHORT,
> + AXP806_IRQ_WAKEUP,
> + AXP806_IRQ_PWROK_FALL,
> + AXP806_IRQ_PWROK_RISE,
> +};
> +
> enum axp809_irqs {
> AXP809_IRQ_ACIN_OVER_V = 1,
> AXP809_IRQ_ACIN_PLUGIN,

--
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org â Open source software for ARM SoCs
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