linux-kernel - Re: [PATCH 2/2] clk: mmp2: separate LCDC peripheral clk form the display clock

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Message-ID: <155078602492.77512.6283122570028118811@swboyd.mtv.corp.google.com>
Date:   Thu, 21 Feb 2019 13:53:44 -0800
From:   Stephen Boyd <sboyd@...nel.org>
To:     Lubomir Rintel <lkundrak@...sk>,
        Michael Turquette <mturquette@...libre.com>
Cc:     Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>, linux-clk@...r.kernel.org,
        linux-kernel@...r.kernel.org, devicetree@...r.kernel.org,
        Lubomir Rintel <lkundrak@...sk>
Subject: Re: [PATCH 2/2] clk: mmp2: separate LCDC peripheral clk form the display clock

Quoting Lubomir Rintel (2019-01-20 22:31:29)
> These are in fact two clocks, they shouldn't be exposed as one. One is
> required for accessing LCD controller registers (peripheral clock), while
> other (AXI clock) can be optionally used as a pixel clock source for the
> panel.
> 
> LCDC can alternatively use different clocks than the Display 1 AXI clock
> for generating the pixel clock: the second AXI clock (fixed in this
> commit too), the HDMI PLL, or the AXI bus clock.
> 
> They should really be controlled independently.
> 
> Link: https://lists.freedesktop.org/archives/dri-devel/2019-January/203975.html
> Signed-off-by: Lubomir Rintel <lkundrak@...sk>
> ---

Applied to clk-next