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SubjectRe: [PATCH 3/6] mfd: axp20x: Add support for AXP813 PMIC
On Thu, 22 Jun 2017, Chen-Yu Tsai wrote:

> 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>
> ---
> drivers/mfd/axp20x-rsb.c | 1 +
> drivers/mfd/axp20x.c | 22 ++++++++++++++++++++++
> include/linux/mfd/axp20x.h | 29 +++++++++++++++++++++++++++++
> 3 files changed, 52 insertions(+)

For my own reference:
Acked-for-MFD-by: Lee Jones <lee.jones@linaro.org>

> diff --git a/drivers/mfd/axp20x-rsb.c b/drivers/mfd/axp20x-rsb.c
> index fd5c7267b136..7ddbd9e8dd03 100644
> --- a/drivers/mfd/axp20x-rsb.c
> +++ b/drivers/mfd/axp20x-rsb.c
> @@ -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);
> diff --git a/drivers/mfd/axp20x.c b/drivers/mfd/axp20x.c
> index 917b6ddc4f15..ec4271ca065c 100644
> --- a/drivers/mfd/axp20x.c
> +++ b/drivers/mfd/axp20x.c
> @@ -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;
> diff --git a/include/linux/mfd/axp20x.h b/include/linux/mfd/axp20x.h
> index 965b027e31b3..e9c908c4fba8 100644
> --- a/include/linux/mfd/axp20x.h
> +++ b/include/linux/mfd/axp20x.h
> @@ -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,

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