From nobody Sun Sep 22 01:48:55 2024 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id BF8DDC433F5 for ; Thu, 12 May 2022 03:05:29 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S244598AbiELDF2 (ORCPT ); Wed, 11 May 2022 23:05:28 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37400 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S244533AbiELDFY (ORCPT ); Wed, 11 May 2022 23:05:24 -0400 Received: from mailgw01.mediatek.com (unknown [60.244.123.138]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C5D141FD866 for ; Wed, 11 May 2022 20:05:18 -0700 (PDT) X-UUID: a4224918e2cc4fe893c3005113a37708-20220512 X-CID-P-RULE: Release_Ham X-CID-O-INFO: VERSION:1.1.4,REQID:332f6d3b-872d-4b82-b2e7-2a7c552e3db3,OB:0,LO B:10,IP:0,URL:5,TC:0,Content:-20,EDM:0,RT:0,SF:100,FILE:0,RULE:Release_Ham ,ACTION:release,TS:85 X-CID-INFO: VERSION:1.1.4,REQID:332f6d3b-872d-4b82-b2e7-2a7c552e3db3,OB:0,LOB: 10,IP:0,URL:5,TC:0,Content:-20,EDM:0,RT:0,SF:100,FILE:0,RULE:Spam_GS981B3D ,ACTION:quarantine,TS:85 X-CID-META: VersionHash:faefae9,CLOUDID:19314325-b432-452e-9e03-2bf3148aed85,C OID:909057ca2822,Recheck:0,SF:28|16|19|48,TC:nil,Content:0,EDM:-3,File:nil ,QS:0,BEC:nil X-UUID: a4224918e2cc4fe893c3005113a37708-20220512 Received: from mtkcas11.mediatek.inc [(172.21.101.40)] by mailgw01.mediatek.com (envelope-from ) (Generic MTA with TLSv1.2 ECDHE-RSA-AES256-SHA384 256/256) with ESMTP id 1235345875; Thu, 12 May 2022 11:05:12 +0800 Received: from mtkmbs11n2.mediatek.inc (172.21.101.187) by mtkmbs10n2.mediatek.inc (172.21.101.183) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.792.3; Thu, 12 May 2022 11:05:11 +0800 Received: from localhost.localdomain (10.17.3.154) by mtkmbs11n2.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.2.792.3 via Frontend Transport; Thu, 12 May 2022 11:05:10 +0800 From: Chunfeng Yun To: Matthias Brugger , CC: , , , AngeloGioacchino Del Regno , Tianping Fang , Jianjun Wang , Chunfeng Yun Subject: [PATCH v2] soc: mediatek: Add support always on flag Date: Thu, 12 May 2022 11:05:10 +0800 Message-ID: <20220512030510.29787-1-chunfeng.yun@mediatek.com> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-MTK: N Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" There is a t-phy shared by PCIe and USB3 on mt8195, if the t-phy is used by PCIe, when power off its mtcmos, need software reset it (workaround way, usually hardware do it, but has an issue on mt8195), but it has side effect to USB2 phy(works with USB3 phy to support USB3.2 Gen1), so add support GENPD_FLAG_ALWAYS_ON flag, and make its power always on; Another reason is that USB3.2 Gen1/2 need keep power always on when support runtime-pm due to hardware limitation until now; Signed-off-by: Chunfeng Yun --- v2: keep active_wakeup flag for mt8195 --- drivers/soc/mediatek/mt8195-pm-domains.h | 2 +- drivers/soc/mediatek/mtk-pm-domains.c | 2 ++ drivers/soc/mediatek/mtk-pm-domains.h | 1 + 3 files changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/soc/mediatek/mt8195-pm-domains.h b/drivers/soc/mediate= k/mt8195-pm-domains.h index 938f4d51f5ae..0529d130b675 100644 --- a/drivers/soc/mediatek/mt8195-pm-domains.h +++ b/drivers/soc/mediatek/mt8195-pm-domains.h @@ -67,7 +67,7 @@ static const struct scpsys_domain_data scpsys_domain_data= _mt8195[] =3D { .ctl_offs =3D 0x334, .pwr_sta_offs =3D 0x174, .pwr_sta2nd_offs =3D 0x178, - .caps =3D MTK_SCPD_ACTIVE_WAKEUP, + .caps =3D MTK_SCPD_ACTIVE_WAKEUP | MTK_SCPD_ALWAYS_ON, }, [MT8195_POWER_DOMAIN_CSI_RX_TOP] =3D { .name =3D "csi_rx_top", diff --git a/drivers/soc/mediatek/mtk-pm-domains.c b/drivers/soc/mediatek/m= tk-pm-domains.c index 5ced254b082b..7ae43a29fb8d 100644 --- a/drivers/soc/mediatek/mtk-pm-domains.c +++ b/drivers/soc/mediatek/mtk-pm-domains.c @@ -447,6 +447,8 @@ generic_pm_domain *scpsys_add_one_domain(struct scpsys = *scpsys, struct device_no =20 if (MTK_SCPD_CAPS(pd, MTK_SCPD_ACTIVE_WAKEUP)) pd->genpd.flags |=3D GENPD_FLAG_ACTIVE_WAKEUP; + if (MTK_SCPD_CAPS(pd, MTK_SCPD_ALWAYS_ON)) + pd->genpd.flags |=3D GENPD_FLAG_ALWAYS_ON; =20 if (MTK_SCPD_CAPS(pd, MTK_SCPD_KEEP_DEFAULT_OFF)) pm_genpd_init(&pd->genpd, NULL, true); diff --git a/drivers/soc/mediatek/mtk-pm-domains.h b/drivers/soc/mediatek/m= tk-pm-domains.h index daa24e890dd4..419d23d5e394 100644 --- a/drivers/soc/mediatek/mtk-pm-domains.h +++ b/drivers/soc/mediatek/mtk-pm-domains.h @@ -8,6 +8,7 @@ #define MTK_SCPD_SRAM_ISO BIT(2) #define MTK_SCPD_KEEP_DEFAULT_OFF BIT(3) #define MTK_SCPD_DOMAIN_SUPPLY BIT(4) +#define MTK_SCPD_ALWAYS_ON BIT(5) #define MTK_SCPD_CAPS(_scpd, _x) ((_scpd)->data->caps & (_x)) =20 #define SPM_VDE_PWR_CON 0x0210 --=20 2.18.0