From patchwork Tue Aug 29 02:04:00 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Xianwei Zhao X-Patchwork-Id: 13368517 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id A12D2C83F15 for ; Tue, 29 Aug 2023 02:05:09 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-ID:Date:Subject:CC:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=uy2QXG67/gMiakwJfesQ7YLZkb4W1h4gMZfp0gSnScE=; b=cfhRzGqiaMb7EE ZvkIxuuxqOYSz3ZcSPDc10o+LITKRgsADrvxFKZ/lMSdCGnlE1+wTooJqRjAyloIdch1wYCsOsFqo jVbnVekuf2pF+hXWhuCwQY+vGRgAouFIkm0DDOkoeMJn0g7eGaNfCVcaHyaX21tsmnRh32e2i/8ic n1CoJYaMnr+9BV5uLnolvPxqvWjqVLDOUFg4QEyhIDyuCfbeTGNipoyayiwOp93biHpiYU5jrfp4J 8mQc/qdBSHX0uiUfuJUg2aFnpzVgzhIfPbXxOoS7Ga1+iaUxZ/5V/nEgHhjFhQEinIy3nHUZuDiL/ JaJGU8oVJUJ49XlEI0iQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1qao5x-00AaY9-2J; Tue, 29 Aug 2023 02:04:41 +0000 Received: from mail-sh.amlogic.com ([58.32.228.43]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1qao5h-00AaSh-0w; Tue, 29 Aug 2023 02:04:26 +0000 Received: from droid01-cd.amlogic.com (10.98.11.200) by mail-sh.amlogic.com (10.18.11.5) with Microsoft SMTP Server id 15.1.2507.13; Tue, 29 Aug 2023 10:04:10 +0800 From: Xianwei Zhao To: , , , CC: Rob Herring , Krzysztof Kozlowski , Conor Dooley , "Neil Armstrong" , Kevin Hilman , xianwei.zhao Subject: [PATCH V3 2/6] genpd: amlogic: add driver to support power parent node Date: Tue, 29 Aug 2023 10:04:00 +0800 Message-ID: <20230829020404.4058677-3-xianwei.zhao@amlogic.com> X-Mailer: git-send-email 2.37.1 In-Reply-To: <20230829020404.4058677-1-xianwei.zhao@amlogic.com> References: <20230829020404.4058677-1-xianwei.zhao@amlogic.com> MIME-Version: 1.0 X-Originating-IP: [10.98.11.200] X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230828_190425_329906_42C1C4F1 X-CRM114-Status: GOOD ( 13.94 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org From: "xianwei.zhao" Some power domains depends on other domains, Such as Amlogic T7 SoC. Add parent node to support this case. Signed-off-by: xianwei.zhao --- V2 -> V3: modify subject "genpd: amlogic: " define PWRC_NO_PARENT UINT_MAX V1 -> V2: None --- drivers/genpd/amlogic/meson-secure-pwrc.c | 26 ++++++++++++++++++++++- 1 file changed, 25 insertions(+), 1 deletion(-) diff --git a/drivers/genpd/amlogic/meson-secure-pwrc.c b/drivers/genpd/amlogic/meson-secure-pwrc.c index 5ac2437ab8ad..ecada537b19c 100644 --- a/drivers/genpd/amlogic/meson-secure-pwrc.c +++ b/drivers/genpd/amlogic/meson-secure-pwrc.c @@ -19,10 +19,12 @@ #define PWRC_ON 1 #define PWRC_OFF 0 +#define PWRC_NO_PARENT UINT_MAX struct meson_secure_pwrc_domain { struct generic_pm_domain base; unsigned int index; + unsigned int parent; struct meson_secure_pwrc *pwrc; }; @@ -34,6 +36,7 @@ struct meson_secure_pwrc { struct meson_secure_pwrc_domain_desc { unsigned int index; + unsigned int parent; unsigned int flags; char *name; bool (*is_off)(struct meson_secure_pwrc_domain *pwrc_domain); @@ -90,8 +93,19 @@ static int meson_secure_pwrc_on(struct generic_pm_domain *domain) { \ .name = #__name, \ .index = PWRC_##__name##_ID, \ - .is_off = pwrc_secure_is_off, \ + .is_off = pwrc_secure_is_off, \ .flags = __flag, \ + .parent = PWRC_NO_PARENT, \ +} + +#define TOP_PD(__name, __flag, __parent) \ +[PWRC_##__name##_ID] = \ +{ \ + .name = #__name, \ + .index = PWRC_##__name##_ID, \ + .is_off = pwrc_secure_is_off, \ + .flags = __flag, \ + .parent = __parent, \ } static struct meson_secure_pwrc_domain_desc a1_pwrc_domains[] = { @@ -202,6 +216,7 @@ static int meson_secure_pwrc_probe(struct platform_device *pdev) dom->pwrc = pwrc; dom->index = match->domains[i].index; + dom->parent = match->domains[i].parent; dom->base.name = match->domains[i].name; dom->base.flags = match->domains[i].flags; dom->base.power_on = meson_secure_pwrc_on; @@ -212,6 +227,15 @@ static int meson_secure_pwrc_probe(struct platform_device *pdev) pwrc->xlate.domains[i] = &dom->base; } + for (i = 0; i < match->count; i++) { + struct meson_secure_pwrc_domain *dom = pwrc->domains; + + if (!match->domains[i].name || match->domains[i].parent == PWRC_NO_PARENT) + continue; + + pm_genpd_add_subdomain(&dom[dom[i].parent].base, &dom[i].base); + } + return of_genpd_add_provider_onecell(pdev->dev.of_node, &pwrc->xlate); }