From patchwork Fri Jan 21 07:45:07 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Liang Yang X-Patchwork-Id: 12719393 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 E26AEC433F5 for ; Fri, 21 Jan 2022 07:46:58 +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=4gIOEpf27XFrAU1gpc682FytYotJ9krDFQYvpIVJF78=; b=gY78bAhQxEAQW2 StZXRVE7SKBlD7jB8WZY3bkLCzbGpy05n3nmGXem72iRJnTqQi6RIIayT3UAg4SkuzvuLn61J+ZU6 ovMFye030X5AHPnImzFwreb86JfeQ8Jxt5odOSVBNglqe7EskiLp2f0SdHSyBKJL0sxq42dtnAmp5 y9gcQPruXTzqhjC/mcczUxpjj9vlhIXT7UwNN9k/N9tNurAzigp5eq0a9DXK2gDHyjpz5jxQ7j3Q4 Qs0iN7QoScC6T8iimXZbUyPN1TVwOb884DJdj09AN54E8pR00MHfEbRqdXVmV/ssYdAbLw90RPf7F mtTrMdlx5JHLrsyXgBew==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1nAocM-00E655-7l; Fri, 21 Jan 2022 07:45:54 +0000 Received: from mail-sz.amlogic.com ([211.162.65.117]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1nAobs-00E5rn-QY; Fri, 21 Jan 2022 07:45:26 +0000 Received: from droid11-sz.amlogic.com (10.28.8.21) by mail-sz.amlogic.com (10.28.11.5) with Microsoft SMTP Server id 15.1.2176.2; Fri, 21 Jan 2022 15:45:20 +0800 From: Liang Yang To: Neil Armstrong , Jerome Brunet , Kevin Hilman , Michael Turquette , Stephen Boyd , Rob Herring , CC: Liang Yang , Martin Blumenstingl , Jianxin Pan , Victor Wan , XianWei Zhao , Kelvin Zhang , BiChao Zheng , YongHui Yu , , , Subject: [PATCH v10 3/4] clk: meson: add DT documentation for emmc clock controller Date: Fri, 21 Jan 2022 15:45:07 +0800 Message-ID: <20220121074508.42168-4-liang.yang@amlogic.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20220121074508.42168-1-liang.yang@amlogic.com> References: <20220121074508.42168-1-liang.yang@amlogic.com> MIME-Version: 1.0 X-Originating-IP: [10.28.8.21] X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220120_234524_898427_EB74BE9C X-CRM114-Status: GOOD ( 11.56 ) 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 Document the MMC sub clock controller driver, the potential consumer of this driver is MMC or NAND. Also add four clock bindings IDs which provided by this driver. Signed-off-by: Liang Yang --- .../bindings/clock/amlogic,mmc-clkc.yaml | 64 +++++++++++++++++++ include/dt-bindings/clock/amlogic,mmc-clkc.h | 14 ++++ 2 files changed, 78 insertions(+) create mode 100644 Documentation/devicetree/bindings/clock/amlogic,mmc-clkc.yaml create mode 100644 include/dt-bindings/clock/amlogic,mmc-clkc.h diff --git a/Documentation/devicetree/bindings/clock/amlogic,mmc-clkc.yaml b/Documentation/devicetree/bindings/clock/amlogic,mmc-clkc.yaml new file mode 100644 index 000000000000..0fe2e33c2082 --- /dev/null +++ b/Documentation/devicetree/bindings/clock/amlogic,mmc-clkc.yaml @@ -0,0 +1,64 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/clock/amlogic,mmc-clkc.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Amlogic MMC Sub Clock Controller Driver Device Tree Bindings + +maintainers: + - jianxin.pan@amlogic.com + - liang.yang@amlogic.com + +properties: + compatible: + enum: + - "amlogic,axg-mmc-clkc", "syscon" + - "amlogic,gx-mmc-clkc", "syscon" + + reg: + maxItems: 1 + + clocks: + maxItems: 2 + + clock-names: + items: + - const: "clkin0", "clkin1" + + "#clock-cells": + const: 1 + +required: + - compatible + - reg + - clocks + - clock-names + - "#clock-cells" + +additionalProperties: false + +examples: + - | + sd_mmc_c_clkc: clock-controller@7000 { + compatible = "amlogic,axg-mmc-clkc", "syscon"; + reg = <0x0 0x7000 0x0 0x4>; + #clock-cells = <1>; + + clock-names = "clkin0", "clkin1"; + clocks = <&clkc CLKID_SD_EMMC_C_CLK0>, + <&clkc CLKID_FCLK_DIV2>; + }; + + - | + sd_emmc_b_clkc: clock-controller@5000 { + compatible = "amlogic,axg-mmc-clkc", "syscon"; + reg = <0x0 0x5000 0x0 0x4>; + + #clock-cells = <1>; + clock-names = "clkin0", "clkin1"; + clocks = <&clkc CLKID_SD_EMMC_B_CLK0>, + <&clkc CLKID_FCLK_DIV2>; + }; + +... \ No newline at end of file diff --git a/include/dt-bindings/clock/amlogic,mmc-clkc.h b/include/dt-bindings/clock/amlogic,mmc-clkc.h new file mode 100644 index 000000000000..71301517b183 --- /dev/null +++ b/include/dt-bindings/clock/amlogic,mmc-clkc.h @@ -0,0 +1,14 @@ +/* SPDX-License-Identifier: (GPL-2.0+ OR MIT) */ +/* + * Copyright (c) 2019 Amlogic, Inc. All rights reserved. + */ + +#ifndef __MMC_CLKC_H +#define __MMC_CLKC_H + +#define CLKID_MMC_DIV 0 +#define CLKID_MMC_PHASE_CORE 1 +#define CLKID_MMC_PHASE_TX 2 +#define CLKID_MMC_PHASE_RX 3 + +#endif