From patchwork Tue Jun 27 13:10:38 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Markus Schneider-Pargmann X-Patchwork-Id: 697475 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 0ADD9EB64DC for ; Tue, 27 Jun 2023 13:11:22 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231133AbjF0NLT (ORCPT ); Tue, 27 Jun 2023 09:11:19 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:55686 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231219AbjF0NLK (ORCPT ); Tue, 27 Jun 2023 09:11:10 -0400 Received: from mail-wm1-x333.google.com (mail-wm1-x333.google.com [IPv6:2a00:1450:4864:20::333]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 5D8FA2948 for ; Tue, 27 Jun 2023 06:10:59 -0700 (PDT) Received: by mail-wm1-x333.google.com with SMTP id 5b1f17b1804b1-3f9ede60140so42847275e9.0 for ; Tue, 27 Jun 2023 06:10:59 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=baylibre-com.20221208.gappssmtp.com; s=20221208; t=1687871457; x=1690463457; 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=CDUpmAc7s7t9VM2bVvGN41Z4YEmAu6R/dggwvun/fs0=; b=POd9//4eOSPohOetyyVuGnsuzLUOyuF6XNYVru0HFc8whZzXUIeZsYOoCDwC9ecIRv OrPei6MUWxqmPEE6KQCu5PZciSgLR+Y384MaxpQo/h4Obij8Ov4r9VMvxtGRyI15sOP6 gSmxy+H4dVH+1A7W8yiqdVnHUinkk2IA0Zw4PPjuO0VCisNLP3TuoOmgAirwEQtGwm7G SkDonuuT6tR9dQoJ24YPv5jpsU8Nf3qNRUe+TKiI8r/LfZa9nVYvwp3CJ0k5m+jSfAn6 UQ/RKxU+L7wOi27o31bEcskGQsnPprbn9eueC0/gsgjb8KuUM4jLWPeIWJ7QE5RUuTcv RX/g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1687871457; x=1690463457; 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=CDUpmAc7s7t9VM2bVvGN41Z4YEmAu6R/dggwvun/fs0=; b=dCMRWSz6qFfY09Oi+ej5szbjl3Oe7ndLDJr3wEVXcx2ZZe03/hPeFtXpF9Rp/wy3/E wAoNe+eaRon6THX8irkx/iET+8u38e0q6gpQELRA76vLt8K8GBahHTgQj5Kmc9sltP5S 6ievGB4RDDIZ4USP5n6cbFtT/Vbn/m4tZ97Qv3ihTJWWxjGyFXnim88n/OYCiEFXAskL ceNEFIMu6TswnzBHkMEGQnZl7+ViAU0z34CCc8foj+A7rmdba7j+MYc7DLmJUIpIfhlk JD5+DXs+rvJgSd/08jD8ffvjjfD+18jTbIbDu32WC12+bRJLbgcfzh9DIsc8/y/AfL9x d4Og== X-Gm-Message-State: AC+VfDwmUfekz4sfc7cpCNvO8dcAeGbwa0CzIapJ+ExaEOUbHkjcSF02 KkkE6sFyftdCrCRMGev0eVGrUA== X-Google-Smtp-Source: ACHHUZ64v7uar2VsHfn1sZ4FNmAhvf9eGcGArzACYGT/iyiIvgBcLs+LhR6pWATv9S1xnihCHoZPig== X-Received: by 2002:a7b:ce13:0:b0:3fb:aae6:31a7 with SMTP id m19-20020a7bce13000000b003fbaae631a7mr207213wmc.14.1687871457481; Tue, 27 Jun 2023 06:10:57 -0700 (PDT) Received: from blmsp.fritz.box ([2001:4091:a247:82fa:b762:4f68:e1ed:5041]) by smtp.gmail.com with ESMTPSA id z26-20020a1c4c1a000000b003f91e32b1ebsm1403196wmf.17.2023.06.27.06.10.56 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 27 Jun 2023 06:10:57 -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, Alexandre Bailon , Fabien Parent , Markus Schneider-Pargmann Subject: [PATCH v6 6/8] soc: mediatek: Add support for WAY_EN operations Date: Tue, 27 Jun 2023 15:10:38 +0200 Message-Id: <20230627131040.3418538-7-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 Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org From: Alexandre Bailon This updates the power domain to support WAY_EN operations. WAY_EN operations on mt8365 are using a different component to check for the acknowledgment, namely the infracfg-nao component. Also to enable a way it the bit needs to be cleared while disabling a way needs a bit to be set. To support these two operations two flags are added, BUS_PROT_INVERTED and BUS_PROT_STA_COMPONENT_INFRA_NAO. Additionally another regmap is created if the INFRA_NAO capability is set. This operation is required by the mt8365 for the MM power domain. Signed-off-by: Alexandre Bailon Signed-off-by: Fabien Parent Signed-off-by: Markus Schneider-Pargmann Reviewed-by: AngeloGioacchino Del Regno --- drivers/soc/mediatek/mtk-pm-domains.c | 39 +++++++++++++++++++++++---- drivers/soc/mediatek/mtk-pm-domains.h | 3 +++ 2 files changed, 37 insertions(+), 5 deletions(-) diff --git a/drivers/soc/mediatek/mtk-pm-domains.c b/drivers/soc/mediatek/mtk-pm-domains.c index 3cdf62c0b6bd..608b5eab8146 100644 --- a/drivers/soc/mediatek/mtk-pm-domains.c +++ b/drivers/soc/mediatek/mtk-pm-domains.c @@ -44,6 +44,7 @@ struct scpsys_domain { struct clk_bulk_data *clks; int num_subsys_clks; struct clk_bulk_data *subsys_clks; + struct regmap *infracfg_nao; struct regmap *infracfg; struct regmap *smi; struct regulator *supply; @@ -127,13 +128,26 @@ static struct regmap *scpsys_bus_protect_get_regmap(struct scpsys_domain *pd, return pd->infracfg; } +static struct regmap *scpsys_bus_protect_get_sta_regmap(struct scpsys_domain *pd, + const struct scpsys_bus_prot_data *bpd) +{ + if (bpd->flags & BUS_PROT_STA_COMPONENT_INFRA_NAO) + return pd->infracfg_nao; + else + return scpsys_bus_protect_get_regmap(pd, bpd); +} + static int scpsys_bus_protect_clear(struct scpsys_domain *pd, const struct scpsys_bus_prot_data *bpd) { + struct regmap *sta_regmap = scpsys_bus_protect_get_sta_regmap(pd, bpd); struct regmap *regmap = scpsys_bus_protect_get_regmap(pd, bpd); + u32 expected_ack; u32 val; u32 sta_mask = bpd->bus_prot_sta_mask; + expected_ack = (bpd->flags & BUS_PROT_STA_COMPONENT_INFRA_NAO ? sta_mask : 0); + if (bpd->flags & BUS_PROT_REG_UPDATE) regmap_clear_bits(regmap, bpd->bus_prot_clr, bpd->bus_prot_set_clr_mask); else @@ -142,14 +156,15 @@ static int scpsys_bus_protect_clear(struct scpsys_domain *pd, if (bpd->flags & BUS_PROT_IGNORE_CLR_ACK) return 0; - return regmap_read_poll_timeout(regmap, bpd->bus_prot_sta, - val, !(val & sta_mask), + return regmap_read_poll_timeout(sta_regmap, bpd->bus_prot_sta, + val, (val & sta_mask) == expected_ack, MTK_POLL_DELAY_US, MTK_POLL_TIMEOUT); } static int scpsys_bus_protect_set(struct scpsys_domain *pd, const struct scpsys_bus_prot_data *bpd) { + struct regmap *sta_regmap = scpsys_bus_protect_get_sta_regmap(pd, bpd); struct regmap *regmap = scpsys_bus_protect_get_regmap(pd, bpd); u32 val; u32 sta_mask = bpd->bus_prot_sta_mask; @@ -159,7 +174,7 @@ static int scpsys_bus_protect_set(struct scpsys_domain *pd, else regmap_write(regmap, bpd->bus_prot_set, bpd->bus_prot_set_clr_mask); - return regmap_read_poll_timeout(regmap, bpd->bus_prot_sta, + return regmap_read_poll_timeout(sta_regmap, bpd->bus_prot_sta, val, (val & sta_mask) == sta_mask, MTK_POLL_DELAY_US, MTK_POLL_TIMEOUT); } @@ -173,7 +188,10 @@ static int scpsys_bus_protect_enable(struct scpsys_domain *pd) if (!bpd->bus_prot_set_clr_mask) break; - ret = scpsys_bus_protect_set(pd, bpd); + if (bpd->flags & BUS_PROT_INVERTED) + ret = scpsys_bus_protect_clear(pd, bpd); + else + ret = scpsys_bus_protect_set(pd, bpd); if (ret) return ret; } @@ -190,7 +208,10 @@ static int scpsys_bus_protect_disable(struct scpsys_domain *pd) if (!bpd->bus_prot_set_clr_mask) continue; - ret = scpsys_bus_protect_clear(pd, bpd); + if (bpd->flags & BUS_PROT_INVERTED) + ret = scpsys_bus_protect_set(pd, bpd); + else + ret = scpsys_bus_protect_clear(pd, bpd); if (ret) return ret; } @@ -377,6 +398,14 @@ generic_pm_domain *scpsys_add_one_domain(struct scpsys *scpsys, struct device_no return ERR_CAST(pd->smi); } + if (MTK_SCPD_CAPS(pd, MTK_SCPD_HAS_INFRA_NAO)) { + pd->infracfg_nao = syscon_regmap_lookup_by_phandle(node, "mediatek,infracfg-nao"); + if (IS_ERR(pd->infracfg_nao)) + return ERR_CAST(pd->infracfg_nao); + } else { + pd->infracfg_nao = NULL; + } + num_clks = of_clk_get_parent_count(node); if (num_clks > 0) { /* Calculate number of subsys_clks */ diff --git a/drivers/soc/mediatek/mtk-pm-domains.h b/drivers/soc/mediatek/mtk-pm-domains.h index 209f68dcaeac..17c033217704 100644 --- a/drivers/soc/mediatek/mtk-pm-domains.h +++ b/drivers/soc/mediatek/mtk-pm-domains.h @@ -11,6 +11,7 @@ /* can't set MTK_SCPD_KEEP_DEFAULT_OFF at the same time */ #define MTK_SCPD_ALWAYS_ON BIT(5) #define MTK_SCPD_EXT_BUCK_ISO BIT(6) +#define MTK_SCPD_HAS_INFRA_NAO BIT(7) #define MTK_SCPD_CAPS(_scpd, _x) ((_scpd)->data->caps & (_x)) #define SPM_VDE_PWR_CON 0x0210 @@ -45,8 +46,10 @@ enum scpsys_bus_prot_flags { BUS_PROT_REG_UPDATE = BIT(1), BUS_PROT_IGNORE_CLR_ACK = BIT(2), + BUS_PROT_INVERTED = BIT(3), BUS_PROT_COMPONENT_INFRA = BIT(4), BUS_PROT_COMPONENT_SMI = BIT(5), + BUS_PROT_STA_COMPONENT_INFRA_NAO = BIT(6), }; #define _BUS_PROT(_set_clr_mask, _set, _clr, _sta_mask, _sta, _flags) { \