[PATCH 2/2] power: regulator: add AXP717 support
Ryan Walklin
ryan at testtoast.com
Sat May 11 12:10:12 CEST 2024
On Fri, 10 May 2024, at 11:43 AM, Andre Przywara wrote:
> The X-Powers AXP717 is a PMIC with four buck converters and a number
> of LDOs, one of which is actually fixed (so not modelled here).
>
> Add the compatible string and the respective regulator ranges to allow
> drivers to adjust voltages.
>
> Signed-off-by: Andre Przywara <andre.przywara at arm.com>
> ---
> drivers/power/pmic/axp.c | 1 +
> drivers/power/regulator/axp_regulator.c | 28 +++++++++++++++++++++++++
> include/axp_pmic.h | 1 +
> 3 files changed, 30 insertions(+)
>
> diff --git a/drivers/power/pmic/axp.c b/drivers/power/pmic/axp.c
> index fdf9ff66c29..c300fd2bbc2 100644
> --- a/drivers/power/pmic/axp.c
> +++ b/drivers/power/pmic/axp.c
> @@ -89,6 +89,7 @@ static const struct udevice_id axp_pmic_ids[] = {
> { .compatible = "x-powers,axp221", .data = AXP221_ID },
> { .compatible = "x-powers,axp223", .data = AXP223_ID },
> { .compatible = "x-powers,axp313a", .data = AXP313_ID },
> + { .compatible = "x-powers,axp717", .data = AXP717_ID },
> { .compatible = "x-powers,axp803", .data = AXP803_ID },
> { .compatible = "x-powers,axp806", .data = AXP806_ID },
> { .compatible = "x-powers,axp809", .data = AXP809_ID },
> diff --git a/drivers/power/regulator/axp_regulator.c
> b/drivers/power/regulator/axp_regulator.c
> index d27e09538e0..75cdbca30f6 100644
> --- a/drivers/power/regulator/axp_regulator.c
> +++ b/drivers/power/regulator/axp_regulator.c
> @@ -189,6 +189,33 @@ static const struct axp_regulator_plat
> axp313_regulators[] = {
> { }
> };
>
> +/*
> + * The "dcdc2" regulator has another range, beyond 1.54V up to 3.4V, in
> + * steps of 100mV. We cannot model this easily, but also don't need
> that,
> + * since it's typically only used for lower voltages anyway, so just
> ignore it.
> + */
> +static const struct axp_regulator_plat axp717_regulators[] = {
> + { "dcdc1", 0x80, BIT(0), 0x83, 0x7f, 500, 1540, 10, 70 },
> + { "dcdc2", 0x80, BIT(1), 0x84, 0x7f, 500, 1540, 10, 70 },
> + { "dcdc3", 0x80, BIT(2), 0x85, 0x7f, 500, 1840, 10, 70 },
> + { "dcdc4", 0x80, BIT(3), 0x86, 0x7f, 1000, 3700, 100, NA },
> + { "aldo1", 0x90, BIT(0), 0x93, 0x1f, 500, 3500, 100, NA },
> + { "aldo2", 0x90, BIT(1), 0x94, 0x1f, 500, 3500, 100, NA },
> + { "aldo3", 0x90, BIT(2), 0x95, 0x1f, 500, 3500, 100, NA },
> + { "aldo4", 0x90, BIT(3), 0x96, 0x1f, 500, 3500, 100, NA },
> + { "bldo1", 0x90, BIT(4), 0x97, 0x1f, 500, 3500, 100, NA },
> + { "bldo2", 0x90, BIT(5), 0x98, 0x1f, 500, 3500, 100, NA },
> + { "bldo3", 0x90, BIT(6), 0x99, 0x1f, 500, 3500, 100, NA },
> + { "bldo4", 0x90, BIT(7), 0x9a, 0x1f, 500, 3500, 100, NA },
> + { "cldo1", 0x91, BIT(0), 0x9b, 0x1f, 500, 3500, 100, NA },
> + { "cldo2", 0x91, BIT(1), 0x9c, 0x1f, 500, 3500, 100, NA },
> + { "cldo3", 0x91, BIT(2), 0x9d, 0x1f, 500, 3500, 100, NA },
> + { "cldo4", 0x91, BIT(3), 0x9e, 0x1f, 500, 3500, 100, NA },
> + {"cpusldo",0x91, BIT(4), 0x9f, 0x1f, 500, 1400, 50, NA },
> + {" boost", 0x19, BIT(4), 0x1e, 0xf0, 4550, 5510, 64, NA },
> + { }
> +};
> +
> static const struct axp_regulator_plat axp803_regulators[] = {
> { "dcdc1", 0x10, BIT(0), 0x20, 0x1f, 1600, 3400, 100, NA },
> { "dcdc2", 0x10, BIT(1), 0x21, 0x7f, 500, 1300, 10, 70 },
> @@ -291,6 +318,7 @@ static const struct axp_regulator_plat *const
> axp_regulators[] = {
> [AXP221_ID] = axp22x_regulators,
> [AXP223_ID] = axp22x_regulators,
> [AXP313_ID] = axp313_regulators,
> + [AXP717_ID] = axp717_regulators,
> [AXP803_ID] = axp803_regulators,
> [AXP806_ID] = axp806_regulators,
> [AXP809_ID] = axp809_regulators,
> diff --git a/include/axp_pmic.h b/include/axp_pmic.h
> index aabafc8501b..ae62ef0d76d 100644
> --- a/include/axp_pmic.h
> +++ b/include/axp_pmic.h
> @@ -33,6 +33,7 @@ enum {
> AXP221_ID,
> AXP223_ID,
> AXP313_ID,
> + AXP717_ID,
> AXP803_ID,
> AXP806_ID,
> AXP809_ID,
> --
> 2.35.8
Confirmed working on H700 board with AXP717 PMIC and LPDDR4 DRAM controller (Anbernic RG35XX-H). Registers and voltage ranges confirmed from datasheet.
Reviewed-by: Ryan Walklin <ryan at testtoast.com>
Regards,
Ryan
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