From patchwork Tue Aug 25 06:00:40 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: =?utf-8?b?RWRkaWUgSHVhbmcgKOm7g+aZuuWCkSk=?= X-Patchwork-Id: 7068121 Return-Path: X-Original-To: patchwork-linux-arm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork1.web.kernel.org (Postfix) with ESMTP id 83DCE9F305 for ; Tue, 25 Aug 2015 06:04:20 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 9191C2074E for ; Tue, 25 Aug 2015 06:04:19 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.9]) (using TLSv1.2 with cipher AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 76925205D8 for ; Tue, 25 Aug 2015 06:04:18 +0000 (UTC) Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1ZU7Io-0001Za-UW; Tue, 25 Aug 2015 06:01:46 +0000 Received: from [210.61.82.183] (helo=mailgw01.mediatek.com) by bombadil.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1ZU7Il-0001Xd-4w; Tue, 25 Aug 2015 06:01:44 +0000 X-Listener-Flag: 11101 Received: from mtkhts09.mediatek.inc [(172.21.101.70)] by mailgw01.mediatek.com (envelope-from ) (mhqrelay.mediatek.com ESMTP with TLS) with ESMTP id 1738363585; Tue, 25 Aug 2015 14:01:00 +0800 Received: from mtkslt208.mediatek.inc (10.21.15.139) by mtkhts09.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 14.3.181.6; Tue, 25 Aug 2015 14:00:58 +0800 From: Eddie Huang To: Matthias Brugger , Sascha Hauer Subject: [PATCH v2] soc: mediatek: add scpsys support active_wakeup Date: Tue, 25 Aug 2015 14:00:40 +0800 Message-ID: <1440482440-28700-1-git-send-email-eddie.huang@mediatek.com> X-Mailer: git-send-email 1.9.1 MIME-Version: 1.0 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20150824_230143_507227_987AAD1D X-CRM114-Status: GOOD ( 13.99 ) X-Spam-Score: -1.1 (-) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: srv_heupstream@mediatek.com, linux-kernel@vger.kernel.org, Daniel Kurtz , linux-mediatek@lists.infradead.org, Chunfeng Yun , Eddie Huang , linux-arm-kernel@lists.infradead.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Spam-Status: No, score=-5.5 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_MED, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP 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 Acked-by: Sascha Hauer Reviewed-by: Daniel Kurtz --- Change in v2: Drop .active_wakeup = false lines in scp_domain_data[] array --- drivers/soc/mediatek/mtk-scpsys.c | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) diff --git a/drivers/soc/mediatek/mtk-scpsys.c b/drivers/soc/mediatek/mtk-scpsys.c index 43a79ed..df2f288 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 +373,20 @@ 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 +444,14 @@ 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