linux-kernel - Re: [PATCH] clk: sunxi-ng: sun50i: h6: Add 2x fixed post-divider to MMC module clocks

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Message-ID: <153540143478.129321.8502068006504989469@swboyd.mtv.corp.google.com>
Date:   Mon, 27 Aug 2018 13:23:54 -0700
From:   Stephen Boyd <sboyd@...nel.org>
To:     Chen-Yu Tsai <wens@...e.org>, Icenowy Zheng <icenowy@...c.io>,
        Maxime Ripard <maxime.ripard@...tlin.com>
Cc:     linux-sunxi@...glegroups.com, Icenowy Zheng <icenowy@...c.io>,
        linux-clk@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] clk: sunxi-ng: sun50i: h6: Add 2x fixed post-divider to MMC
 module clocks

Quoting Icenowy Zheng (2018-08-20 06:40:13)
> On the H6, the MMC module clocks are fixed in the new timing mode,
> i.e. they do not have a bit to select the mode. These clocks have
> a 2x divider somewhere between the clock and the MMC module.
> 
> To be consistent with other SoCs supporting the new timing mode,
> we model the 2x divider as a fixed post-divider on the MMC module
> clocks.
> 
> This patch adds the post-dividers to the MMC clocks, following the
> approach on A64.
> 
> Fixes: 542353ea ("clk: sunxi-ng: add support for the Allwinner H6 CCU")

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