| Message ID | 20221221034407.19605-3-allen-kh.cheng@mediatek.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | Add ADSP power domains controller support for MT8192 | expand |
Il 21/12/22 04:44, Allen-KH Cheng ha scritto: > In MT8192, we need to disable EXT_BUCK_ISO before turning on the ADSP > power pm-domains (mtcmos). > > Add the MTK_SCPD_EXT_BUCK_ISO flag to control the buck isolation > setting in the mediatek power domain driver. > > Fixes: 59b644b01cf4 ("soc: mediatek: Add MediaTek SCPSYS power domains") > Signed-off-by: Allen-KH Cheng <allen-kh.cheng@mediatek.com> > --- > drivers/soc/mediatek/mtk-pm-domains.c | 8 ++++++++ > drivers/soc/mediatek/mtk-pm-domains.h | 1 + > 2 files changed, 9 insertions(+) > > diff --git a/drivers/soc/mediatek/mtk-pm-domains.c b/drivers/soc/mediatek/mtk-pm-domains.c > index 09e3c38b8466..63f1e183f645 100644 > --- a/drivers/soc/mediatek/mtk-pm-domains.c > +++ b/drivers/soc/mediatek/mtk-pm-domains.c > @@ -218,6 +218,10 @@ static int scpsys_power_on(struct generic_pm_domain *genpd) > if (ret) > goto err_reg; > > + if (MTK_SCPD_CAPS(pd, MTK_SCPD_EXT_BUCK_ISO)) if (pd->data->ext_buck_iso_offs && MTK_SCPD_CAPS(pd, MTK_SCPD_EXT_BUCK_ISO)) regmap_[...etc] ...so that we validate that ext_buck_iso_offs is actually present (as I suppose that this is supposed to *never* be 0x0). Regards, Angelo
diff --git a/drivers/soc/mediatek/mtk-pm-domains.c b/drivers/soc/mediatek/mtk-pm-domains.c index 09e3c38b8466..63f1e183f645 100644 --- a/drivers/soc/mediatek/mtk-pm-domains.c +++ b/drivers/soc/mediatek/mtk-pm-domains.c @@ -218,6 +218,10 @@ static int scpsys_power_on(struct generic_pm_domain *genpd) if (ret) goto err_reg; + if (MTK_SCPD_CAPS(pd, MTK_SCPD_EXT_BUCK_ISO)) + regmap_clear_bits(scpsys->base, pd->data->ext_buck_iso_offs, + pd->data->ext_buck_iso_mask); + /* subsys power on */ regmap_set_bits(scpsys->base, pd->data->ctl_offs, PWR_ON_BIT); regmap_set_bits(scpsys->base, pd->data->ctl_offs, PWR_ON_2ND_BIT); @@ -272,6 +276,10 @@ static int scpsys_power_off(struct generic_pm_domain *genpd) if (ret < 0) return ret; + if (MTK_SCPD_CAPS(pd, MTK_SCPD_EXT_BUCK_ISO)) + regmap_set_bits(scpsys->base, pd->data->ext_buck_iso_offs, + pd->data->ext_buck_iso_mask); + clk_bulk_disable_unprepare(pd->num_subsys_clks, pd->subsys_clks); /* subsys power off */ diff --git a/drivers/soc/mediatek/mtk-pm-domains.h b/drivers/soc/mediatek/mtk-pm-domains.h index a5f24c58e35a..5ec53ee073c4 100644 --- a/drivers/soc/mediatek/mtk-pm-domains.h +++ b/drivers/soc/mediatek/mtk-pm-domains.h @@ -10,6 +10,7 @@ #define MTK_SCPD_DOMAIN_SUPPLY BIT(4) /* can't set MTK_SCPD_KEEP_DEFAULT_OFF at the same time */ #define MTK_SCPD_ALWAYS_ON BIT(5) +#define MTK_SCPD_EXT_BUCK_ISO BIT(6) #define MTK_SCPD_CAPS(_scpd, _x) ((_scpd)->data->caps & (_x)) #define SPM_VDE_PWR_CON 0x0210
In MT8192, we need to disable EXT_BUCK_ISO before turning on the ADSP power pm-domains (mtcmos). Add the MTK_SCPD_EXT_BUCK_ISO flag to control the buck isolation setting in the mediatek power domain driver. Fixes: 59b644b01cf4 ("soc: mediatek: Add MediaTek SCPSYS power domains") Signed-off-by: Allen-KH Cheng <allen-kh.cheng@mediatek.com> --- drivers/soc/mediatek/mtk-pm-domains.c | 8 ++++++++ drivers/soc/mediatek/mtk-pm-domains.h | 1 + 2 files changed, 9 insertions(+)