linux-kernel - Re: [PATCH v7 2/4] clk: meson: add DT documentation for emmc clock controller

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Message-ID: <154387713374.88331.16436869339024592009@swboyd.mtv.corp.google.com>
Date:   Mon, 03 Dec 2018 14:45:33 -0800
From:   Stephen Boyd <sboyd@...nel.org>
To:     Jerome Brunet <jbrunet@...libre.com>,
        Jianxin Pan <jianxin.pan@...ogic.com>,
        Neil Armstrong <narmstrong@...libre.com>
Cc:     Yixun Lan <yixun.lan@...ogic.com>,
        Jianxin Pan <jianxin.pan@...ogic.com>,
        Kevin Hilman <khilman@...libre.com>,
        Carlo Caione <carlo@...one.org>,
        Michael Turquette <mturquette@...libre.com>,
        Rob Herring <robh@...nel.org>,
        Miquel Raynal <miquel.raynal@...tlin.com>,
        Boris Brezillon <boris.brezillon@...tlin.com>,
        Martin Blumenstingl <martin.blumenstingl@...glemail.com>,
        Liang Yang <liang.yang@...ogic.com>,
        Jian Hu <jian.hu@...ogic.com>,
        Qiufang Dai <qiufang.dai@...ogic.com>,
        Hanjie Lin <hanjie.lin@...ogic.com>,
        Victor Wan <victor.wan@...ogic.com>, linux-clk@...r.kernel.org,
        linux-amlogic@...ts.infradead.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v7 2/4] clk: meson: add DT documentation for emmc clock controller

Quoting Jianxin Pan (2018-11-15 04:18:30)
> 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 0000000..162b949
> --- /dev/null
> +++ b/include/dt-bindings/clock/amlogic,mmc-clkc.h
> @@ -0,0 +1,17 @@
> +/* SPDX-License-Identifier: (GPL-2.0+ OR MIT) */
> +/*
> + * Meson MMC sub clock tree IDs
> + *
> + * Copyright (c) 2018 Amlogic, Inc. All rights reserved.
> + * Author: Yixun Lan <yixun.lan@...ogic.com>
> + */
> +
> +#ifndef __MMC_CLKC_H
> +#define __MMC_CLKC_H
> +
> +#define CLKID_MMC_DIV                          1

Why does the define numbering start with 1 instead of 0?

> +#define CLKID_MMC_PHASE_CORE                   2
> +#define CLKID_MMC_PHASE_TX                     3
> +#define CLKID_MMC_PHASE_RX                     4
> +