[PATCH v2] pmdomain: mediatek: Add MT8188 buck isolation setting

[Ulf Hansson]

On Fri, 29 Mar 2024 at 05:43, Fei Shao <fshao at chromium.org> wrote:
>
> From: Johnson Wang <johnson.wang at mediatek.com>
>
> From: Johnson Wang <johnson.wang at mediatek.com>
>
> Add buck isolation setting to ADSP_AO, CAM_VCORE and IMG_VCORE power
> domains in MT8188 for proper buck isolation control in power domain
> on/off.
>
> Signed-off-by: Johnson Wang <johnson.wang at mediatek.com>
> Signed-off-by: Fei Shao <fshao at chromium.org>
> Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno at collabora.com>

Applied for next, thanks!

Kind regards
Uffe


> ---
>
> Changes in v2:
> [1] was reviewed but didn't get accepted at the time.
> This rebases [1] on next-20240327 with revised commit message.
>
> [1]: https://lore.kernel.org/all/20230315114505.25144-1-johnson.wang@mediatek.com/
>
>  drivers/pmdomain/mediatek/mt8188-pm-domains.h | 14 +++++++++++---
>  1 file changed, 11 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/pmdomain/mediatek/mt8188-pm-domains.h b/drivers/pmdomain/mediatek/mt8188-pm-domains.h
> index 06834ab6597c..007235be9efe 100644
> --- a/drivers/pmdomain/mediatek/mt8188-pm-domains.h
> +++ b/drivers/pmdomain/mediatek/mt8188-pm-domains.h
> @@ -175,6 +175,8 @@ static const struct scpsys_domain_data scpsys_domain_data_mt8188[] = {
>                 .ctl_offs = 0x35C,
>                 .pwr_sta_offs = 0x16C,
>                 .pwr_sta2nd_offs = 0x170,
> +               .ext_buck_iso_offs = 0x3EC,
> +               .ext_buck_iso_mask = BIT(10),
>                 .bp_cfg = {
>                         BUS_PROT_WR(INFRA,
>                                     MT8188_TOP_AXI_PROT_EN_2_ADSP_AO_STEP1,
> @@ -187,7 +189,7 @@ static const struct scpsys_domain_data scpsys_domain_data_mt8188[] = {
>                                     MT8188_TOP_AXI_PROT_EN_2_CLR,
>                                     MT8188_TOP_AXI_PROT_EN_2_STA),
>                 },
> -               .caps = MTK_SCPD_ALWAYS_ON,
> +               .caps = MTK_SCPD_ALWAYS_ON | MTK_SCPD_EXT_BUCK_ISO,
>         },
>         [MT8188_POWER_DOMAIN_ADSP_INFRA] = {
>                 .name = "adsp_infra",
> @@ -524,6 +526,8 @@ static const struct scpsys_domain_data scpsys_domain_data_mt8188[] = {
>                 .ctl_offs = 0x3A4,
>                 .pwr_sta_offs = 0x16C,
>                 .pwr_sta2nd_offs = 0x170,
> +               .ext_buck_iso_offs = 0x3EC,
> +               .ext_buck_iso_mask = BIT(12),
>                 .bp_cfg = {
>                         BUS_PROT_WR(INFRA,
>                                     MT8188_TOP_AXI_PROT_EN_MM_IMG_VCORE_STEP1,
> @@ -541,7 +545,8 @@ static const struct scpsys_domain_data scpsys_domain_data_mt8188[] = {
>                                     MT8188_TOP_AXI_PROT_EN_MM_2_CLR,
>                                     MT8188_TOP_AXI_PROT_EN_MM_2_STA),
>                 },
> -               .caps = MTK_SCPD_KEEP_DEFAULT_OFF | MTK_SCPD_DOMAIN_SUPPLY,
> +               .caps = MTK_SCPD_KEEP_DEFAULT_OFF | MTK_SCPD_DOMAIN_SUPPLY |
> +                       MTK_SCPD_EXT_BUCK_ISO,
>         },
>         [MT8188_POWER_DOMAIN_IMG_MAIN] = {
>                 .name = "img_main",
> @@ -591,6 +596,8 @@ static const struct scpsys_domain_data scpsys_domain_data_mt8188[] = {
>                 .ctl_offs = 0x3A0,
>                 .pwr_sta_offs = 0x16C,
>                 .pwr_sta2nd_offs = 0x170,
> +               .ext_buck_iso_offs = 0x3EC,
> +               .ext_buck_iso_mask = BIT(11),
>                 .bp_cfg = {
>                         BUS_PROT_WR(INFRA,
>                                     MT8188_TOP_AXI_PROT_EN_MM_CAM_VCORE_STEP1,
> @@ -618,7 +625,8 @@ static const struct scpsys_domain_data scpsys_domain_data_mt8188[] = {
>                                     MT8188_TOP_AXI_PROT_EN_MM_2_CLR,
>                                     MT8188_TOP_AXI_PROT_EN_MM_2_STA),
>                 },
> -               .caps = MTK_SCPD_KEEP_DEFAULT_OFF | MTK_SCPD_DOMAIN_SUPPLY,
> +               .caps = MTK_SCPD_KEEP_DEFAULT_OFF | MTK_SCPD_DOMAIN_SUPPLY |
> +                       MTK_SCPD_EXT_BUCK_ISO,
>         },
>         [MT8188_POWER_DOMAIN_CAM_MAIN] = {
>                 .name = "cam_main",
> --
> 2.44.0.478.gd926399ef9-goog
>