From patchwork Thu Sep 29 11:46:22 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Johnson Wang X-Patchwork-Id: 12993996 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 21513C433F5 for ; Thu, 29 Sep 2022 12:16:51 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Type:MIME-Version: References:In-Reply-To:Message-ID:Date:Subject:CC:To:From:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=lenYjv1geOFUZJdmgFq5riQxkkqjCdvBwevLP67S8hs=; b=4S09GVJWCqukNb8UgIqpeZwH/Z BkWERN/tkvTv96JmTqyiWQlf+ki+jqZS7YHPimPYRtNYRAQJTc2MS7fnFKjee2ryQo3zPTgDG9Ad+ oxAcgkCp1qaI3uqshB78aE8jwqSlStconrOrANM5xW5zPdaCDNbjxYmy0C3vqa069HuxhHBe1YfIU BK93LcaZJoCVX4rZ47ATy7lGEYMParoIC/BMTng3P7BPQvk/ioY5FspqGYTT/SLBlqJT2bKW77zQ+ YHP8OCEf2YmQbCMGYKYom2/TvBBE204YMAMMH5NeKViWZcQLmHdgjS82DHthX5G6/ollWy6d5Hpq7 e2m2+9LA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1odsT1-002tKM-NK; Thu, 29 Sep 2022 12:16:39 +0000 Received: from mailgw02.mediatek.com ([216.200.240.185]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1odsSz-002tJV-Ba; Thu, 29 Sep 2022 12:16:38 +0000 X-UUID: c7f8c77921d44f7d8dc3f162338a7dc2-20220929 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=mediatek.com; s=dk; h=Content-Type:MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:CC:To:From; bh=lenYjv1geOFUZJdmgFq5riQxkkqjCdvBwevLP67S8hs=; b=p2JupJ+5kL/T3+oPkly432A0455T2StN87arfKQGynuqVaqT4TyEkjxLIgPV1KmKX63bf5Tr+c3aTnLJs42spTEtNZUO2WEQKqV6wjPihO2cuYnIMhE8Lvxvt5a1CqiS0agv/UBRaBFmWKc+kRyxCXDKxOwaFf3cDXwF2vSrggc=; X-CID-P-RULE: Release_Ham X-CID-O-INFO: VERSION:1.1.11,REQID:f437eb03-2664-446b-bb27-9c258fc7b386,IP:0,U RL:25,TC:0,Content:0,EDM:0,RT:0,SF:0,FILE:0,BULK:0,RULE:Release_Ham,ACTION :release,TS:25 X-CID-META: VersionHash:39a5ff1,CLOUDID:4ba781a3-dc04-435c-b19b-71e131a5fc35,B ulkID:nil,BulkQuantity:0,Recheck:0,SF:102,TC:nil,Content:0,EDM:-3,IP:nil,U RL:11|1,File:nil,Bulk:nil,QS:nil,BEC:nil,COL:0 X-UUID: c7f8c77921d44f7d8dc3f162338a7dc2-20220929 Received: from mtkmbs11n1.mediatek.inc [(172.21.101.185)] by mailgw02.mediatek.com (envelope-from ) (musrelay.mediatek.com ESMTP with TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384 256/256) with ESMTP id 1851392864; Thu, 29 Sep 2022 05:16:33 -0700 Received: from mtkmbs11n2.mediatek.inc (172.21.101.187) by mtkmbs13n1.mediatek.inc (172.21.101.193) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.792.15; Thu, 29 Sep 2022 19:46:29 +0800 Received: from mtksdccf07.mediatek.inc (172.21.84.99) by mtkmbs11n2.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.2.792.15 via Frontend Transport; Thu, 29 Sep 2022 19:46:29 +0800 From: Johnson Wang To: , , , CC: , , , , , , , , Johnson Wang , Edward-JW Yang Subject: [PATCH v3 2/4] dt-bindings: arm: mediatek: Add new bindings of MediaTek frequency hopping Date: Thu, 29 Sep 2022 19:46:22 +0800 Message-ID: <20220929114624.16809-3-johnson.wang@mediatek.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20220929114624.16809-1-johnson.wang@mediatek.com> References: <20220929114624.16809-1-johnson.wang@mediatek.com> MIME-Version: 1.0 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220929_051637_423207_4BA36DE6 X-CRM114-Status: GOOD ( 14.08 ) X-BeenThere: linux-mediatek@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-mediatek" Errors-To: linux-mediatek-bounces+linux-mediatek=archiver.kernel.org@lists.infradead.org Add the new binding documentation for MediaTek frequency hopping and spread spectrum clocking control. Co-developed-by: Edward-JW Yang Signed-off-by: Edward-JW Yang Signed-off-by: Johnson Wang Reviewed-by: AngeloGioacchino Del Regno Reviewed-by: Rob Herring --- .../arm/mediatek/mediatek,mt8186-fhctl.yaml | 53 +++++++++++++++++++ 1 file changed, 53 insertions(+) create mode 100644 Documentation/devicetree/bindings/arm/mediatek/mediatek,mt8186-fhctl.yaml diff --git a/Documentation/devicetree/bindings/arm/mediatek/mediatek,mt8186-fhctl.yaml b/Documentation/devicetree/bindings/arm/mediatek/mediatek,mt8186-fhctl.yaml new file mode 100644 index 000000000000..258dff7ce6bc --- /dev/null +++ b/Documentation/devicetree/bindings/arm/mediatek/mediatek,mt8186-fhctl.yaml @@ -0,0 +1,53 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/arm/mediatek/mediatek,mt8186-fhctl.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: MediaTek frequency hopping and spread spectrum clocking control + +maintainers: + - Edward-JW Yang + +description: | + Frequency hopping control (FHCTL) is a piece of hardware that control + some PLLs to adopt "hopping" mechanism to adjust their frequency. + Spread spectrum clocking (SSC) is another function provided by this hardware. + +properties: + compatible: + const: mediatek,mt8186-fhctl + + reg: + maxItems: 1 + + clocks: + description: Phandles of the PLL with FHCTL hardware capability. + minItems: 1 + maxItems: 30 + + mediatek,hopping-ssc-percent: + description: The percentage of spread spectrum clocking for one PLL. + minItems: 1 + maxItems: 30 + items: + default: 0 + minimum: 0 + maximum: 8 + +required: + - compatible + - reg + - clocks + +additionalProperties: false + +examples: + - | + #include + fhctl: fhctl@1000ce00 { + compatible = "mediatek,mt8186-fhctl"; + reg = <0x1000c000 0xe00>; + clocks = <&apmixedsys CLK_APMIXED_MSDCPLL>; + mediatek,hopping-ssc-percent = <3>; + };