From nobody Thu Nov 14 17:15:46 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 47C9EEB64D9 for ; Tue, 27 Jun 2023 13:11:14 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230115AbjF0NLL (ORCPT ); Tue, 27 Jun 2023 09:11:11 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:55660 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231139AbjF0NK6 (ORCPT ); Tue, 27 Jun 2023 09:10:58 -0400 Received: from mail-wm1-x335.google.com (mail-wm1-x335.google.com [IPv6:2a00:1450:4864:20::335]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id BFB5E273C for ; Tue, 27 Jun 2023 06:10:56 -0700 (PDT) Received: by mail-wm1-x335.google.com with SMTP id 5b1f17b1804b1-3fb4146e8fcso13087295e9.0 for ; Tue, 27 Jun 2023 06:10:56 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=baylibre-com.20221208.gappssmtp.com; s=20221208; t=1687871455; x=1690463455; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=0VMYcJx4syxwuFnZnbvKqO4Q62miCTx6QaRJP3Gp1m0=; b=DkXvGerQqSJxq9hbTx255R7KYi1farydUF4KzdZLz+7XiUuFgA4VuyDKgkTHlfgKyB H06qRKvdrKosv9/g70ARLzIYDchSVf/Kb05NnbRCkew85LKeUYH2JBa4huMXWSTY0orq G/TYTCDY5olZAjKlpdPGEiIQaCXp9vpsP+IpSt8nNx2opTvE5fOKZoKVG85A9xSCinHh zh1jN++fnGanSWwOn7CXDXM8oG5i4CGHdcWsQENSFvXO6VPPEIB84u0DHIozQrn53309 nIg3qHNFWICHnLBK/XGZ5SYojhgNFBn8xc4xS6PL2D9QmeOEt9oxj3wMojERxOMPqAwn jDcw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1687871455; x=1690463455; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=0VMYcJx4syxwuFnZnbvKqO4Q62miCTx6QaRJP3Gp1m0=; b=PKr4+yo0mS/t1Z6IQm2Iabw+8H1HGnT0b72yURGaO+b0RwxxfFi1S0fYCUce5CUFi0 g5q4JkDK7UeRwgwqAmOnAHzl+QvH6MCP2EQbX2B0JQU9GN14CbGQAdhuEblYikxKLKDI vnH7UJpDyFuYQ2WJO4x6BGH0KvqPY+JGor4PK2pDL/7BVmdePgpigErNlMkADvWauuQC WGGGSJtQ2/9dS7Yj9vagCFUvWSLC0xtovJL/tvB6n9KrDhRfAZNk3c3/r3yg4BDjbdUV y5WVcaKjUoQtCvAtWy2QFYRYXm7ohIrqJ5+xuzDHybQ1Bv6RsiNwff6B24IKMwa/GR17 9NHQ== X-Gm-Message-State: AC+VfDzJsBN/YTA7JAR8/F1aSFmGVUE1CU/lMJ7cQvK4PDSh2l2nBSQ7 w7L0SL3i3e4sbofHmv9dMfJgGw== X-Google-Smtp-Source: ACHHUZ5CJTbhlRNA3EXBZZR0mnjEvmoQxX3ePmgt3zHDLAx0hHI+qnmBxM9mo36T2npYTgLVsegiKg== X-Received: by 2002:a1c:ed10:0:b0:3f7:e660:cdc5 with SMTP id l16-20020a1ced10000000b003f7e660cdc5mr28420040wmh.9.1687871455142; Tue, 27 Jun 2023 06:10:55 -0700 (PDT) Received: from blmsp.fritz.box ([2001:4091:a247:82fa:b762:4f68:e1ed:5041]) by smtp.gmail.com with ESMTPSA id z26-20020a1c4c1a000000b003f91e32b1ebsm1403196wmf.17.2023.06.27.06.10.54 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 27 Jun 2023 06:10:54 -0700 (PDT) From: Markus Schneider-Pargmann To: Rob Herring , Krzysztof Kozlowski , Conor Dooley , Matthias Brugger Cc: Chun-Jie Chen , AngeloGioacchino Del Regno , Tinghan Shen , Fabien Parent , devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, Markus Schneider-Pargmann Subject: [PATCH v6 4/8] soc: mediatek: pm-domains: Create bus protection operation functions Date: Tue, 27 Jun 2023 15:10:36 +0200 Message-Id: <20230627131040.3418538-5-msp@baylibre.com> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20230627131040.3418538-1-msp@baylibre.com> References: <20230627131040.3418538-1-msp@baylibre.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" Separate the register access used for bus protection enable/disable into their own functions. These will be used later for WAY_EN support. Signed-off-by: Markus Schneider-Pargmann Reviewed-by: Alexandre Mergnat Reviewed-by: AngeloGioacchino Del Regno Tested-by: Alexandre Mergnat --- drivers/soc/mediatek/mtk-pm-domains.c | 68 +++++++++++++++------------ 1 file changed, 39 insertions(+), 29 deletions(-) diff --git a/drivers/soc/mediatek/mtk-pm-domains.c b/drivers/soc/mediatek/m= tk-pm-domains.c index c801fa763e89..69dc24a73ce9 100644 --- a/drivers/soc/mediatek/mtk-pm-domains.c +++ b/drivers/soc/mediatek/mtk-pm-domains.c @@ -118,26 +118,50 @@ static int scpsys_sram_disable(struct scpsys_domain *= pd) MTK_POLL_TIMEOUT); } =20 +static int scpsys_bus_protect_clear(const struct scpsys_bus_prot_data *bpd, + struct regmap *regmap) +{ + u32 val; + u32 sta_mask =3D bpd->bus_prot_sta_mask; + + if (bpd->flags & BUS_PROT_REG_UPDATE) + regmap_clear_bits(regmap, bpd->bus_prot_clr, bpd->bus_prot_set_clr_mask); + else + regmap_write(regmap, bpd->bus_prot_clr, bpd->bus_prot_set_clr_mask); + + if (bpd->flags & BUS_PROT_IGNORE_CLR_ACK) + return 0; + + return regmap_read_poll_timeout(regmap, bpd->bus_prot_sta, + val, !(val & sta_mask), + MTK_POLL_DELAY_US, MTK_POLL_TIMEOUT); +} + +static int scpsys_bus_protect_set(const struct scpsys_bus_prot_data *bpd, + struct regmap *regmap) +{ + u32 val; + u32 sta_mask =3D bpd->bus_prot_sta_mask; + + if (bpd->flags & BUS_PROT_REG_UPDATE) + regmap_set_bits(regmap, bpd->bus_prot_set, bpd->bus_prot_set_clr_mask); + else + regmap_write(regmap, bpd->bus_prot_set, bpd->bus_prot_set_clr_mask); + + return regmap_read_poll_timeout(regmap, bpd->bus_prot_sta, + val, (val & sta_mask) =3D=3D sta_mask, + MTK_POLL_DELAY_US, MTK_POLL_TIMEOUT); +} + static int _scpsys_bus_protect_enable(const struct scpsys_bus_prot_data *b= pd, struct regmap *regmap) { int i, ret; =20 for (i =3D 0; i < SPM_MAX_BUS_PROT_DATA; i++) { - u32 val; - u32 set_clr_mask =3D bpd[i].bus_prot_set_clr_mask; - u32 sta_mask =3D bpd[i].bus_prot_sta_mask; - - if (!set_clr_mask) + if (!bpd[i].bus_prot_set_clr_mask) break; =20 - if (bpd[i].flags & BUS_PROT_REG_UPDATE) - regmap_set_bits(regmap, bpd[i].bus_prot_set, set_clr_mask); - else - regmap_write(regmap, bpd[i].bus_prot_set, set_clr_mask); - - ret =3D regmap_read_poll_timeout(regmap, bpd[i].bus_prot_sta, - val, (val & sta_mask) =3D=3D sta_mask, - MTK_POLL_DELAY_US, MTK_POLL_TIMEOUT); + ret =3D scpsys_bus_protect_set(&bpd[i], regmap); if (ret) return ret; } @@ -162,24 +186,10 @@ static int _scpsys_bus_protect_disable(const struct s= cpsys_bus_prot_data *bpd, int i, ret; =20 for (i =3D SPM_MAX_BUS_PROT_DATA - 1; i >=3D 0; i--) { - u32 val; - u32 set_clr_mask =3D bpd[i].bus_prot_set_clr_mask; - u32 sta_mask =3D bpd[i].bus_prot_sta_mask; - - if (!set_clr_mask) - continue; - - if (bpd[i].flags & BUS_PROT_REG_UPDATE) - regmap_clear_bits(regmap, bpd[i].bus_prot_clr, set_clr_mask); - else - regmap_write(regmap, bpd[i].bus_prot_clr, set_clr_mask); - - if (bpd[i].flags & BUS_PROT_IGNORE_CLR_ACK) + if (!bpd[i].bus_prot_set_clr_mask) continue; =20 - ret =3D regmap_read_poll_timeout(regmap, bpd[i].bus_prot_sta, - val, !(val & sta_mask), - MTK_POLL_DELAY_US, MTK_POLL_TIMEOUT); + ret =3D scpsys_bus_protect_clear(&bpd[i], regmap); if (ret) return ret; } --=20 2.40.1