Register gpd_dev_ops.active_wakeup function to support keep power
during suspend state. And add flag to each power domain to
decide whether keep power during suspend or not.
Signed-off-by: Chunfeng Yun <[email protected]>
Signed-off-by: Eddie Huang <[email protected]>
Acked-by: Sascha Hauer <[email protected]>
Reviewed-by: Daniel Kurtz <[email protected]>
---
Change in v3:
Remove check dev->power_domain NULL or ERR. This will not happen
when call scpsys_active_wakeup function
Change in v2:
Drop .active_wakeup = false lines in scp_domain_data[] array
---
drivers/soc/mediatek/mtk-scpsys.c | 16 ++++++++++++++++
1 file changed, 16 insertions(+)
diff --git a/drivers/soc/mediatek/mtk-scpsys.c b/drivers/soc/mediatek/mtk-scpsys.c
index 43a79ed..3a00975 100644
--- a/drivers/soc/mediatek/mtk-scpsys.c
+++ b/drivers/soc/mediatek/mtk-scpsys.c
@@ -67,6 +67,7 @@ struct scp_domain_data {
u32 sram_pdn_ack_bits;
u32 bus_prot_mask;
enum clk_id clk_id;
+ bool active_wakeup;
};
static const struct scp_domain_data scp_domain_data[] __initconst = {
@@ -127,6 +128,7 @@ static const struct scp_domain_data scp_domain_data[] __initconst = {
.sram_pdn_bits = GENMASK(11, 8),
.sram_pdn_ack_bits = GENMASK(15, 12),
.clk_id = MT8173_CLK_NONE,
+ .active_wakeup = true,
},
[MT8173_POWER_DOMAIN_MFG_ASYNC] = {
.name = "mfg_async",
@@ -171,6 +173,7 @@ struct scp_domain {
u32 sram_pdn_bits;
u32 sram_pdn_ack_bits;
u32 bus_prot_mask;
+ bool active_wakeup;
};
struct scp {
@@ -370,6 +373,17 @@ out:
return ret;
}
+static bool scpsys_active_wakeup(struct device *dev)
+{
+ struct generic_pm_domain *genpd;
+ struct scp_domain *scpd;
+
+ genpd = pd_to_genpd(dev->pm_domain);
+ scpd = container_of(genpd, struct scp_domain, genpd);
+
+ return scpd->active_wakeup;
+}
+
static int __init scpsys_probe(struct platform_device *pdev)
{
struct genpd_onecell_data *pd_data;
@@ -427,12 +441,14 @@ static int __init scpsys_probe(struct platform_device *pdev)
scpd->sram_pdn_bits = data->sram_pdn_bits;
scpd->sram_pdn_ack_bits = data->sram_pdn_ack_bits;
scpd->bus_prot_mask = data->bus_prot_mask;
+ scpd->active_wakeup = data->active_wakeup;
if (data->clk_id != MT8173_CLK_NONE)
scpd->clk = clk[data->clk_id];
genpd->name = data->name;
genpd->power_off = scpsys_power_off;
genpd->power_on = scpsys_power_on;
+ genpd->dev_ops.active_wakeup = scpsys_active_wakeup;
/*
* Initially turn on all domains to make the domains usable
--
1.9.1