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Commit 47e90154 authored by Eddie Huang's avatar Eddie Huang Committed by Matthias Brugger
Browse files

soc: mediatek: add scpsys support active_wakeup 



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: default avatarChunfeng Yun <chunfeng.yun@mediatek.com>
Signed-off-by: default avatarEddie Huang <eddie.huang@mediatek.com>
Acked-by: default avatarSascha Hauer <s.hauer@pengutronix.de>
Reviewed-by: default avatarDaniel Kurtz <djkurtz@chromium.org>
Signed-off-by: default avatarMatthias Brugger <matthias.bgg@gmail.com>
parent bbe379fc

drivers/soc/mediatek/mtk-scpsys.c

+16 −0
Original line number Diff line number Diff line
@@ -68,6 +68,7 @@ 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 = {
@@ -128,6 +129,7 @@ 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",
@@ -172,6 +174,7 @@ struct scp_domain { 
	u32 sram_pdn_bits;

	u32 sram_pdn_ack_bits;

	u32 bus_prot_mask;

	bool active_wakeup;

};



struct scp {
@@ -371,6 +374,17 @@ static int scpsys_power_off(struct generic_pm_domain *genpd) 
	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;
@@ -428,12 +442,14 @@ 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