On Wed, Aug 20, 2025 at 03:58:26AM +0530, Nitin Rawat wrote:
> Add regulator load voting support for SM8650 and SM8750 platforms by
> introducing dedicated regulator bulk data arrays with their load
> values.
>
> The load requirements are:
> - SM8650: vdda-phy (205mA), vdda-pll (17.5mA)
> - SM8750: vdda-phy (213mA), vdda-pll (18.3mA)
>
> This ensures stable operation and proper power management for these
> platforms where regulators are shared between the QMP USB PHY and
> other IP blocks by setting appropriate regulator load currents during PHY
> operations.
>
> Configurations without specific load requirements will continue to work
> unchanged, as init_load_uA remains zero-initialized when .init_load_uA
> is not provided.
Can we please get configuration for the rest of the platforms?
>
> Signed-off-by: Nitin Rawat <quic_nitirawa@xxxxxxxxxxx>
> ---
> drivers/phy/qualcomm/phy-qcom-qmp-ufs.c | 19 +++++++++++++++----
> 1 file changed, 15 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/phy/qualcomm/phy-qcom-qmp-ufs.c b/drivers/phy/qualcomm/phy-qcom-qmp-ufs.c
> index aaa88ca0ef07..1c3ce0fa6adf 100644
> --- a/drivers/phy/qualcomm/phy-qcom-qmp-ufs.c
> +++ b/drivers/phy/qualcomm/phy-qcom-qmp-ufs.c
> @@ -1170,6 +1170,17 @@ static const struct regulator_bulk_data qmp_phy_vreg_l[] = {
> { .supply = "vdda-pll" },
> };
>
> +/* Regulator bulk data with load values for specific configurations */
> +static const struct regulator_bulk_data sm8650_ufsphy_vreg_l[] = {
> + { .supply = "vdda-phy", .init_load_uA = 205000 },
> + { .supply = "vdda-pll", .init_load_uA = 17500 },
> +};
> +
> +static const struct regulator_bulk_data sm8750_ufsphy_vreg_l[] = {
> + { .supply = "vdda-phy", .init_load_uA = 213000 },
> + { .supply = "vdda-pll", .init_load_uA = 18300 },
> +};
> +
> static const struct qmp_ufs_offsets qmp_ufs_offsets = {
> .serdes = 0,
> .pcs = 0xc00,
> @@ -1638,8 +1649,8 @@ static const struct qmp_phy_cfg sm8650_ufsphy_cfg = {
> .max_gear = UFS_HS_G5,
> },
>
> - .vreg_list = qmp_phy_vreg_l,
> - .num_vregs = ARRAY_SIZE(qmp_phy_vreg_l),
> + .vreg_list = sm8650_ufsphy_vreg_l,
> + .num_vregs = ARRAY_SIZE(sm8650_ufsphy_vreg_l),
> .regs = ufsphy_v6_regs_layout,
> };
>
> @@ -1676,8 +1687,8 @@ static const struct qmp_phy_cfg sm8750_ufsphy_cfg = {
> .max_gear = UFS_HS_G5,
> },
>
> - .vreg_list = qmp_phy_vreg_l,
> - .num_vregs = ARRAY_SIZE(qmp_phy_vreg_l),
> + .vreg_list = sm8750_ufsphy_vreg_l,
> + .num_vregs = ARRAY_SIZE(sm8750_ufsphy_vreg_l),
> .regs = ufsphy_v6_regs_layout,
>
> };
> --
> 2.48.1
>
--
With best wishes
Dmitry
