soc: mediatek: pm-domains: Add bus protection protocol (916d6d71) · Commits · 戴 / test

drivers/soc/mediatek/mt8173-pm-domains.h

+2 −2

Original line number	Diff line number	Diff line
		@@ -34,7 +34,7 @@ static const struct scpsys_domain_data scpsys_domain_data_mt8173[] = {
		.ctl_offs = SPM_DIS_PWR_CON,
		.sram_pdn_bits = GENMASK(11, 8),
		.sram_pdn_ack_bits = GENMASK(12, 12),
		.bp_infracfg = {
		.bp_infracfg[0] = {
		.bus_prot_reg_update = true,
		.bus_prot_mask = MT8173_TOP_AXI_PROT_EN_MM_M0 \|
		MT8173_TOP_AXI_PROT_EN_MM_M1,
		@@ -76,7 +76,7 @@ static const struct scpsys_domain_data scpsys_domain_data_mt8173[] = {
		.ctl_offs = SPM_MFG_PWR_CON,
		.sram_pdn_bits = GENMASK(13, 8),
		.sram_pdn_ack_bits = GENMASK(21, 16),
		.bp_infracfg = {
		.bp_infracfg[0] = {
		.bus_prot_reg_update = true,
		.bus_prot_mask = MT8173_TOP_AXI_PROT_EN_MFG_S \|
		MT8173_TOP_AXI_PROT_EN_MFG_M0 \|

+26 −10

Original line number	Diff line number	Diff line
		@@ -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)

+3 −1

Original line number	Diff line number	Diff line
		@@ -32,6 +32,8 @@
		#define PWR_STATUS_AUDIO BIT(24)
		#define PWR_STATUS_USB BIT(25)

		#define SPM_MAX_BUS_PROT_DATA 5

		struct scpsys_bus_prot_data {
		u32 bus_prot_mask;
		bool bus_prot_reg_update;
		@@ -52,7 +54,7 @@ struct scpsys_domain_data {
		u32 sram_pdn_bits;
		u32 sram_pdn_ack_bits;
		u8 caps;
		const struct scpsys_bus_prot_data bp_infracfg;
		const struct scpsys_bus_prot_data bp_infracfg[SPM_MAX_BUS_PROT_DATA];
		};

		struct scpsys_soc_data {