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| author | Matthias Brugger <mbrugger@suse.com> | 2020-10-30 12:36:10 +0100 |
|---|---|---|
| committer | Matthias Brugger <matthias.bgg@gmail.com> | 2020-11-27 12:04:42 +0100 |
| commit | 916d6d71ba56cfc19a0bfd8a0e181443a13cb865 (patch) | |
| tree | b893ab58ce6629bf31305e5e1550c0af948ec82c /drivers/soc/mediatek/mtk-pm-domains.c | |
| parent | 59b644b01cf48d6042f3c5983d464921a4920845 (diff) | |
| download | linux-916d6d71ba56cfc19a0bfd8a0e181443a13cb865.tar.gz | |
soc: mediatek: pm-domains: Add bus protection protocol
Bus protection will need to update more then one register
in infracfg. Add support for several operations.
Signed-off-by: Matthias Brugger <mbrugger@suse.com>
Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Link: https://lore.kernel.org/r/20201030113622.201188-5-enric.balletbo@collabora.com
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
Diffstat (limited to 'drivers/soc/mediatek/mtk-pm-domains.c')
| -rw-r--r-- | drivers/soc/mediatek/mtk-pm-domains.c | 36 |
1 files changed, 26 insertions, 10 deletions
diff --git a/drivers/soc/mediatek/mtk-pm-domains.c b/drivers/soc/mediatek/mtk-pm-domains.c index f8e88308f2e0..06a16e45356a 100644 --- a/drivers/soc/mediatek/mtk-pm-domains.c +++ b/drivers/soc/mediatek/mtk-pm-domains.c @@ -88,24 +88,40 @@ static int scpsys_sram_disable(struct scpsys_domain *pd) static int scpsys_bus_protect_enable(struct scpsys_domain *pd) { - const struct scpsys_bus_prot_data *bp_data = &pd->data->bp_infracfg; + const struct scpsys_bus_prot_data *bpd = pd->data->bp_infracfg; + int i, ret; - if (!bp_data->bus_prot_mask) - return 0; + for (i = 0; i < SPM_MAX_BUS_PROT_DATA; i++) { + if (!bpd[i].bus_prot_mask) + break; - return mtk_infracfg_set_bus_protection(pd->infracfg, bp_data->bus_prot_mask, - bp_data->bus_prot_reg_update); + ret = mtk_infracfg_set_bus_protection(pd->infracfg, + bpd[i].bus_prot_mask, + bpd[i].bus_prot_reg_update); + if (ret) + return ret; + } + + return 0; } static int scpsys_bus_protect_disable(struct scpsys_domain *pd) { - const struct scpsys_bus_prot_data *bp_data = &pd->data->bp_infracfg; + const struct scpsys_bus_prot_data *bpd = pd->data->bp_infracfg; + int i, ret; - if (!bp_data->bus_prot_mask) - return 0; + for (i = SPM_MAX_BUS_PROT_DATA; i > 0; i--) { + if (!bpd[i].bus_prot_mask) + continue; - return mtk_infracfg_clear_bus_protection(pd->infracfg, bp_data->bus_prot_mask, - bp_data->bus_prot_reg_update); + ret = mtk_infracfg_clear_bus_protection(pd->infracfg, + bpd[i].bus_prot_mask, + bpd[i].bus_prot_reg_update); + if (ret) + return ret; + } + + return 0; } static int scpsys_power_on(struct generic_pm_domain *genpd) |