From nobody Fri Sep 20 15:34:05 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 3E5CAC00528 for ; Thu, 13 Jul 2023 15:04:46 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232741AbjGMPEo (ORCPT ); Thu, 13 Jul 2023 11:04:44 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39874 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232568AbjGMPEd (ORCPT ); Thu, 13 Jul 2023 11:04:33 -0400 Received: from mail-ej1-x630.google.com (mail-ej1-x630.google.com [IPv6:2a00:1450:4864:20::630]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E24431B6 for ; Thu, 13 Jul 2023 08:04:31 -0700 (PDT) Received: by mail-ej1-x630.google.com with SMTP id a640c23a62f3a-992b27e1c55so120604066b.2 for ; Thu, 13 Jul 2023 08:04:31 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=baylibre-com.20221208.gappssmtp.com; s=20221208; t=1689260670; x=1691852670; 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=KZuj2vYwtu1q+1KUWNq9Rx/83sQjYgOtd/pHC+rLp7M=; b=RkOwDzpMuH2Q9wEvS+/gVNzvc/el3qTstPACqXVvJhgiFkyO7cPmPhjkqX8bY/QLbu u9SKdly9DwBumaoDqWYPBQ1978dW7/fouv1P0eozmwURIR0aJdPnUEa58U448y9oBKxB 5RBWiTAwtqECxcetJeECbX6/8qH6UTWahp0ZvOJ/6EJL6gEnol6jN4/Xw/0nbB8N4X+H Q48XYb8vfaAo7S2vdE0XM29Sx8zQeMXxUeM+gaUt5dlVONtiIoMr82nXBCef7KUcMgF+ XXBldbQz5isMQVIjGEw041lqXVa/Z3YxOYloRIFOMXVLhS4wnj0CpRzqFO+RMKQeNl5/ 8mcw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1689260670; x=1691852670; 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=KZuj2vYwtu1q+1KUWNq9Rx/83sQjYgOtd/pHC+rLp7M=; b=VsV3F8+VX9Nc2RIq1eetu0qCjYmI08wqcs5s1LKxoZijeogr0Oq0waOhTqMPE3k08j NXWPL0hTUeYvbr+4ABJuACLnPG+Zb/cYd/nT7SK/vPIW3O1GeQrNhrYfcuRmOQXaBIBG bw9MZC9ZLHwW6XoJzd7vjUYISTgwCgUYShm/eP2BYAWnIaF95Xj3CMw9C+kwRoRLw029 Ct6N3FaxvHl1+FKJFTWqKPlcum0vSE61XTrq+/039xb7HoQ6koDB3m0rpI7n8FPoDCIo w5RplsAMzj84ffnSB4SasxQ3NIEG5PiK++4mPXihQ0bjLv+QSjkMLcFl2lCuftO1+Sgx z5Xg== X-Gm-Message-State: ABy/qLaQCeiee0ISiFeLWRTSwgpJY7dLorqTKJ5Wml71frbYqUkWdQw2 qrWzjMGlCAV02uChnyd1JkWRug== X-Google-Smtp-Source: APBJJlGQBOniWxQQ0p4125shOSawu+R4zWBBkYj1MASWCD7uyRwcaZd75TijtpdYHX2tDjuhURKpQw== X-Received: by 2002:a17:906:10d9:b0:98e:2b01:ab97 with SMTP id v25-20020a17090610d900b0098e2b01ab97mr1739243ejv.68.1689260670406; Thu, 13 Jul 2023 08:04:30 -0700 (PDT) Received: from blmsp.fritz.box ([2001:4091:a247:82fa:1d6d:d215:e7c4:dd5e]) by smtp.gmail.com with ESMTPSA id cd26-20020a170906b35a00b009929c39d5c4sm4102939ejb.36.2023.07.13.08.04.29 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 13 Jul 2023 08:04:30 -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 , Alexandre Mergnat Subject: [PATCH v7 4/8] soc: mediatek: pm-domains: Create bus protection operation functions Date: Thu, 13 Jul 2023 17:04:10 +0200 Message-Id: <20230713150414.891893-5-msp@baylibre.com> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20230713150414.891893-1-msp@baylibre.com> References: <20230713150414.891893-1-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: AngeloGioacchino Del Regno Reviewed-by: Alexandre Mergnat 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 a2c8f5313124..a7a46fb132ee 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 sta_mask =3D bpd->bus_prot_sta_mask; + u32 val; + + 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 sta_mask =3D bpd->bus_prot_sta_mask; + u32 val; + + 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 set_clr_mask =3D bpd[i].bus_prot_set_clr_mask; - u32 sta_mask =3D bpd[i].bus_prot_sta_mask; - u32 val; - - 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 set_clr_mask =3D bpd[i].bus_prot_set_clr_mask; - u32 sta_mask =3D bpd[i].bus_prot_sta_mask; - u32 val; - - 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