Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752266AbbGWGBG (ORCPT ); Thu, 23 Jul 2015 02:01:06 -0400 Received: from mailgw02.mediatek.com ([210.61.82.184]:60799 "EHLO mailgw02.mediatek.com" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1752117AbbGWGA5 (ORCPT ); Thu, 23 Jul 2015 02:00:57 -0400 X-Listener-Flag: 11101 From: Eddie Huang To: Matthias Brugger , Sascha Hauer CC: Chunfeng Yun , Daniel Kurtz , , , , Eddie Huang Subject: [PATCH] soc: mediatek: add scpsys support active_wakeup Date: Thu, 23 Jul 2015 14:00:49 +0800 Message-ID: <1437631249-706-1-git-send-email-eddie.huang@mediatek.com> X-Mailer: git-send-email 1.8.1.1.dirty MIME-Version: 1.0 Content-Type: text/plain X-MTK: N Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 5136 Lines: 154 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 Signed-off-by: Eddie Huang --- drivers/soc/mediatek/mtk-scpsys.c | 28 ++++++++++++++++++++++++++++ 1 file changed, 28 insertions(+) diff --git a/drivers/soc/mediatek/mtk-scpsys.c b/drivers/soc/mediatek/mtk-scpsys.c index 43a79ed..fc78b70 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 = { @@ -77,6 +78,7 @@ static const struct scp_domain_data scp_domain_data[] __initconst = { .sram_pdn_bits = GENMASK(11, 8), .sram_pdn_ack_bits = GENMASK(12, 12), .clk_id = MT8173_CLK_MM, + .active_wakeup = false, }, [MT8173_POWER_DOMAIN_VENC] = { .name = "venc", @@ -85,6 +87,7 @@ 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_MM, + .active_wakeup = false, }, [MT8173_POWER_DOMAIN_ISP] = { .name = "isp", @@ -93,6 +96,7 @@ static const struct scp_domain_data scp_domain_data[] __initconst = { .sram_pdn_bits = GENMASK(11, 8), .sram_pdn_ack_bits = GENMASK(13, 12), .clk_id = MT8173_CLK_MM, + .active_wakeup = false, }, [MT8173_POWER_DOMAIN_MM] = { .name = "mm", @@ -101,6 +105,7 @@ static const struct scp_domain_data scp_domain_data[] __initconst = { .sram_pdn_bits = GENMASK(11, 8), .sram_pdn_ack_bits = GENMASK(12, 12), .clk_id = MT8173_CLK_MM, + .active_wakeup = false, .bus_prot_mask = MT8173_TOP_AXI_PROT_EN_MM_M0 | MT8173_TOP_AXI_PROT_EN_MM_M1, }, @@ -111,6 +116,7 @@ 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_MM, + .active_wakeup = false, }, [MT8173_POWER_DOMAIN_AUDIO] = { .name = "audio", @@ -119,6 +125,7 @@ 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 = false, }, [MT8173_POWER_DOMAIN_USB] = { .name = "usb", @@ -127,6 +134,7 @@ 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", @@ -135,6 +143,7 @@ static const struct scp_domain_data scp_domain_data[] __initconst = { .sram_pdn_bits = GENMASK(11, 8), .sram_pdn_ack_bits = 0, .clk_id = MT8173_CLK_MFG, + .active_wakeup = false, }, [MT8173_POWER_DOMAIN_MFG_2D] = { .name = "mfg_2d", @@ -143,6 +152,7 @@ static const struct scp_domain_data scp_domain_data[] __initconst = { .sram_pdn_bits = GENMASK(11, 8), .sram_pdn_ack_bits = GENMASK(13, 12), .clk_id = MT8173_CLK_NONE, + .active_wakeup = false, }, [MT8173_POWER_DOMAIN_MFG] = { .name = "mfg", @@ -151,6 +161,7 @@ static const struct scp_domain_data scp_domain_data[] __initconst = { .sram_pdn_bits = GENMASK(13, 8), .sram_pdn_ack_bits = GENMASK(21, 16), .clk_id = MT8173_CLK_NONE, + .active_wakeup = false, .bus_prot_mask = MT8173_TOP_AXI_PROT_EN_MFG_S | MT8173_TOP_AXI_PROT_EN_MFG_M0 | MT8173_TOP_AXI_PROT_EN_MFG_M1 | @@ -171,6 +182,7 @@ struct scp_domain { u32 sram_pdn_bits; u32 sram_pdn_ack_bits; u32 bus_prot_mask; + bool active_wakeup; }; struct scp { @@ -370,6 +382,20 @@ out: return ret; } +static bool scpsys_active_wakeup(struct device *dev) +{ + struct generic_pm_domain *genpd; + struct scp_domain *scpd; + + if (IS_ERR_OR_NULL(dev->pm_domain)) + return false; + + 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 +453,14 @@ 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 -- 1.8.1.1.dirty -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/