linux-kernel - Re: (subset) [PATCH v3 5/6] clk: sunxi-ng: Add support for the sun6i RTC clocks

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Message-ID: <20220211124312.kiw6t25nojvkp2rw@houat>
Date:   Fri, 11 Feb 2022 13:43:12 +0100
From:   Maxime Ripard <maxime@...no.tech>
To:     Samuel Holland <samuel@...lland.org>
Cc:     Chen-Yu Tsai <wens@...e.org>, linux-sunxi@...ts.linux.dev,
        Jernej Skrabec <jernej.skrabec@...il.com>,
        Stephen Boyd <sboyd@...nel.org>,
        Alexandre Belloni <alexandre.belloni@...tlin.com>,
        linux-arm-kernel@...ts.infradead.org, linux-clk@...r.kernel.org,
        linux-rtc@...r.kernel.org, linux-kernel@...r.kernel.org,
        Michael Turquette <mturquette@...libre.com>,
        Rob Herring <robh+dt@...nel.org>, devicetree@...r.kernel.org,
        Alessandro Zummo <a.zummo@...ertech.it>
Subject: Re: (subset) [PATCH v3 5/6] clk: sunxi-ng: Add support for the sun6i
 RTC clocks

Hi Samuel,

On Mon, Feb 07, 2022 at 05:54:02PM -0600, Samuel Holland wrote:
> On 2/7/22 3:00 AM, Maxime Ripard wrote:
> > On Wed, 2 Feb 2022 20:17:35 -0600, Samuel Holland wrote:
> >> The RTC power domain in sun6i and newer SoCs manages the 16 MHz RC
> >> oscillator (called "IOSC" or "osc16M") and the optional 32 kHz crystal
> >> oscillator (called "LOSC" or "osc32k"). Starting with the H6, this power
> >> domain also handles the 24 MHz DCXO (called variously "HOSC", "dcxo24M",
> >> or "osc24M") as well. The H6 also adds a calibration circuit for IOSC.
> >>
> >> Later SoCs introduce further variations on the design:
> >>  - H616 adds an additional mux for the 32 kHz fanout source.
> >>  - R329 adds an additional mux for the RTC timekeeping clock, a clock
> >>    for the SPI bus between power domains inside the RTC, and removes the
> >>    IOSC calibration functionality.
> >>
> >> [...]
> > 
> > Applied to local tree (sunxi/clk-for-5.18).
> 
> Part of the build failures were because this patch depends on patch 3. Is that
> okay, or should I update this patch to be independent?

We don't have anything queued up yet, so I think the easiest would be to
merge this through the RTC tree. So nothing to do on your side yet, we
just need Alex to answer :)

Maxime

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