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To:     "A.s. Dong" <aisheng.dong@nxp.com>,
        "linux-clk@vger.kernel.org" <linux-clk@vger.kernel.org>
From:   Stephen Boyd <sboyd@kernel.org>
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Cc:     "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
        "linux-arm-kernel@lists.infradead.org" 
        <linux-arm-kernel@lists.infradead.org>,
        "mturquette@baylibre.com" <mturquette@baylibre.com>,
        "shawnguo@kernel.org" <shawnguo@kernel.org>,
        Anson Huang <anson.huang@nxp.com>,
        Jacky Bai <ping.bai@nxp.com>, dl-linux-imx <linux-imx@nxp.com>,
        "A.s. Dong" <aisheng.dong@nxp.com>,
        Stephen Boyd <sboyd@codeaurora.org>
References: <1542200198-3017-1-git-send-email-aisheng.dong@nxp.com>
 <1542200198-3017-10-git-send-email-aisheng.dong@nxp.com>
Message-ID: <154386555833.88331.17771094561482296098@swboyd.mtv.corp.google.com>
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Subject: Re: [PATCH V6 9/9] clk: imx: add imx7ulp clk driver
Date:   Mon, 03 Dec 2018 11:32:38 -0800
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk

Quoting A.s. Dong (2018-11-14 05:02:08)
> i.MX7ULP Clock functions are under joint control of the System
> Clock Generation (SCG) modules, Peripheral Clock Control (PCC)
> modules, and Core Mode Controller (CMC)1 blocks
> =

> The clocking scheme provides clear separation between M4 domain
> and A7 domain. Except for a few clock sources shared between two
> domains, such as the System Oscillator clock, the Slow IRC (SIRC),
> and and the Fast IRC clock (FIRCLK), clock sources and clock
> management are separated and contained within each domain.
> =

> M4 clock management consists of SCG0, PCC0, PCC1, and CMC0 modules.
> A7 clock management consists of SCG1, PCC2, PCC3, and CMC1 modules.
> =

> This driver only adds clock support in A7 domain.
> =

> Note that most clocks required to be operated when gated, e.g. pll,
> pfd, pcc. And more special cases that scs/ddr/nic mux selecting
> different clock source requires that clock to be enabled first,
> then we need set CLK_OPS_PARENT_ENABLE flag for them properly.
> =

> Cc: Stephen Boyd <sboyd@codeaurora.org>
> Cc: Michael Turquette <mturquette@baylibre.com>
> Cc: Shawn Guo <shawnguo@kernel.org>
> Cc: Anson Huang <Anson.Huang@nxp.com>
> Cc: Bai Ping <ping.bai@nxp.com>
> Signed-off-by: Dong Aisheng <aisheng.dong@nxp.com>
> =

> ---

Applied to clk-next