From nobody Wed Dec 17 16:57:22 2025 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 DDE27C77B73 for ; Wed, 19 Apr 2023 03:57:18 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232220AbjDSD5P convert rfc822-to-8bit (ORCPT ); Tue, 18 Apr 2023 23:57:15 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39998 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231958AbjDSD44 (ORCPT ); Tue, 18 Apr 2023 23:56:56 -0400 Received: from ex01.ufhost.com (ex01.ufhost.com [61.152.239.75]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D6F2961AF; Tue, 18 Apr 2023 20:56:54 -0700 (PDT) Received: from EXMBX166.cuchost.com (unknown [175.102.18.54]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client CN "EXMBX166", Issuer "EXMBX166" (not verified)) by ex01.ufhost.com (Postfix) with ESMTP id 97E2D24E22D; Wed, 19 Apr 2023 11:56:53 +0800 (CST) Received: from EXMBX162.cuchost.com (172.16.6.72) by EXMBX166.cuchost.com (172.16.6.76) with Microsoft SMTP Server (TLS) id 15.0.1497.42; Wed, 19 Apr 2023 11:56:53 +0800 Received: from ubuntu.localdomain (113.72.144.253) by EXMBX162.cuchost.com (172.16.6.72) with Microsoft SMTP Server (TLS) id 15.0.1497.42; Wed, 19 Apr 2023 11:56:52 +0800 From: Changhuang Liang To: Rob Herring , Krzysztof Kozlowski , Emil Renner Berthing , Conor Dooley , Paul Walmsley , Palmer Dabbelt , Albert Ou CC: Walker Chen , Changhuang Liang , Hal Feng , , , Subject: [RESEND v2 5/6] soc: starfive: Add JH7110 AON PMU support Date: Tue, 18 Apr 2023 20:56:45 -0700 Message-ID: <20230419035646.43702-6-changhuang.liang@starfivetech.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230419035646.43702-1-changhuang.liang@starfivetech.com> References: <20230419035646.43702-1-changhuang.liang@starfivetech.com> MIME-Version: 1.0 X-Originating-IP: [113.72.144.253] X-ClientProxiedBy: EXCAS064.cuchost.com (172.16.6.24) To EXMBX162.cuchost.com (172.16.6.72) X-YovoleRuleAgent: yovoleflag Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" Add AON PMU for StarFive JH7110 SoC. It can be used to turn on/off the dphy rx/tx power switch. Reviewed-by: Walker Chen Signed-off-by: Changhuang Liang --- MAINTAINERS | 1 + drivers/soc/starfive/jh71xx_pmu.c | 63 ++++++++++++++++++++++++++++++- 2 files changed, 63 insertions(+), 1 deletion(-) diff --git a/MAINTAINERS b/MAINTAINERS index 0fafeea8ebdb..8f32d43a9b67 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -19950,6 +19950,7 @@ F: include/dt-bindings/reset/starfive?jh71*.h =20 STARFIVE JH71XX PMU CONTROLLER DRIVER M: Walker Chen +M: Changhuang Liang S: Supported F: Documentation/devicetree/bindings/power/starfive* F: drivers/soc/starfive/jh71xx_pmu.c diff --git a/drivers/soc/starfive/jh71xx_pmu.c b/drivers/soc/starfive/jh71x= x_pmu.c index bb44cc93e822..1303826aa7b5 100644 --- a/drivers/soc/starfive/jh71xx_pmu.c +++ b/drivers/soc/starfive/jh71xx_pmu.c @@ -2,7 +2,7 @@ /* * StarFive JH71XX PMU (Power Management Unit) Controller Driver * - * Copyright (C) 2022 StarFive Technology Co., Ltd. + * Copyright (C) 2022-2023 StarFive Technology Co., Ltd. */ =20 #include @@ -24,6 +24,9 @@ #define JH71XX_PMU_EVENT_STATUS 0x88 #define JH71XX_PMU_INT_STATUS 0x8C =20 +/* aon pmu register offset */ +#define JH71XX_AON_PMU_SWITCH 0x00 + /* sw encourage cfg */ #define JH71XX_PMU_SW_ENCOURAGE_EN_LO 0x05 #define JH71XX_PMU_SW_ENCOURAGE_EN_HI 0x50 @@ -163,6 +166,23 @@ static int jh7110_pmu_set_state(struct jh71xx_pmu_dev = *pmd, u32 mask, bool on) return 0; } =20 +static int jh7110_aon_pmu_set_state(struct jh71xx_pmu_dev *pmd, u32 mask, = bool on) +{ + struct jh71xx_pmu *pmu =3D pmd->pmu; + unsigned long flags; + + spin_lock_irqsave(&pmu->lock, flags); + + if (on) + regmap_update_bits(pmu->base, JH71XX_AON_PMU_SWITCH, mask, mask); + else + regmap_update_bits(pmu->base, JH71XX_AON_PMU_SWITCH, mask, 0); + + spin_unlock_irqrestore(&pmu->lock, flags); + + return 0; +} + static int jh71xx_pmu_set_state(struct jh71xx_pmu_dev *pmd, u32 mask, bool= on) { struct jh71xx_pmu *pmu =3D pmd->pmu; @@ -270,6 +290,24 @@ static int jh7110_pmu_parse_dt(struct platform_device = *pdev, struct jh71xx_pmu * return 0; } =20 +static int jh7110_aon_pmu_parse_dt(struct platform_device *pdev, struct jh= 71xx_pmu *pmu) +{ + struct device *parent; + struct device *dev =3D &pdev->dev; + + parent =3D pdev->dev.parent; + if (!parent) { + dev_err(dev, "No parent for syscon pmu\n"); + return -ENODEV; + } + + pmu->base =3D syscon_node_to_regmap(parent->of_node); + if (IS_ERR(pmu->base)) + return PTR_ERR(pmu->base); + + return 0; +} + static int jh71xx_pmu_init_domain(struct jh71xx_pmu *pmu, int index) { struct jh71xx_pmu_dev *pmd; @@ -398,10 +436,32 @@ static const struct jh71xx_pmu_match_data jh7110_pmu = =3D { .pmu_set_state =3D jh7110_pmu_set_state, }; =20 +static const struct jh71xx_domain_info jh7110_aon_power_domains[] =3D { + [JH7110_PD_DPHY_TX] =3D { + .name =3D "DPHY-TX", + .bit =3D 30, + }, + [JH7110_PD_DPHY_RX] =3D { + .name =3D "DPHY-RX", + .bit =3D 31, + }, +}; + +static const struct jh71xx_pmu_match_data jh7110_aon_pmu =3D { + .num_domains =3D ARRAY_SIZE(jh7110_aon_power_domains), + .domain_info =3D jh7110_aon_power_domains, + .pmu_status =3D JH71XX_AON_PMU_SWITCH, + .pmu_parse_dt =3D jh7110_aon_pmu_parse_dt, + .pmu_set_state =3D jh7110_aon_pmu_set_state, +}; + static const struct of_device_id jh71xx_pmu_of_match[] =3D { { .compatible =3D "starfive,jh7110-pmu", .data =3D (void *)&jh7110_pmu, + }, { + .compatible =3D "starfive,jh7110-aon-pmu", + .data =3D (void *)&jh7110_aon_pmu, }, { /* sentinel */ } @@ -418,5 +478,6 @@ static struct platform_driver jh71xx_pmu_driver =3D { builtin_platform_driver(jh71xx_pmu_driver); =20 MODULE_AUTHOR("Walker Chen "); +MODULE_AUTHOR("Changhuang Liang "); MODULE_DESCRIPTION("StarFive JH71XX PMU Driver"); MODULE_LICENSE("GPL"); --=20 2.25.1