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Re: [PATCH v3 1/5] clk: sunxi: Add apb0 gates for H3

From Krzysztof Adamski <k@japko.eu>
Newsgroups linux.kernel
Subject Re: [PATCH v3 1/5] clk: sunxi: Add apb0 gates for H3
Date 2016-02-05 13:00 +0100
Message-ID <qYNdo-85k-11@gated-at.bofh.it> (permalink)
References <qYfbI-uu-5@gated-at.bofh.it> <qYfbJ-uu-47@gated-at.bofh.it> <qYtom-3f9-19@gated-at.bofh.it> <qYMAG-7S6-13@gated-at.bofh.it>
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On Fri, Feb 05, 2016 at 12:11:52PM +0100, Maxime Ripard wrote:
>Hi,
>
>On Thu, Feb 04, 2016 at 03:47:52PM +0100, Jean-Francois Moine wrote:
>> On Thu,  4 Feb 2016 00:33:46 +0100
>> Krzysztof Adamski <k@japko.eu> wrote:
>>
>> > This patch adds support for APB0 in H3. It seems to be compatible with
>> > earlier SOCs. apb0 gates controls R_ block peripherals (R_PIO, R_IR,
>> > etc).
>> >
>> > Signed-off-by: Krzysztof Adamski <k@japko.eu>
>> > ---
>> >  Documentation/devicetree/bindings/clock/sunxi.txt | 1 +
>> >  drivers/clk/sunxi/clk-simple-gates.c              | 2 ++
>> >  2 files changed, 3 insertions(+)
>> >
>> > diff --git a/Documentation/devicetree/bindings/clock/sunxi.txt b/Documentation/devicetree/bindings/clock/sunxi.txt
>> > index e59f57b..751c8b9f0 100644
>> > --- a/Documentation/devicetree/bindings/clock/sunxi.txt
>> > +++ b/Documentation/devicetree/bindings/clock/sunxi.txt
>> > @@ -45,6 +45,7 @@ Required properties:
>> >  	"allwinner,sun6i-a31-apb0-gates-clk" - for the APB0 gates on A31
>> >  	"allwinner,sun7i-a20-apb0-gates-clk" - for the APB0 gates on A20
>> >  	"allwinner,sun8i-a23-apb0-gates-clk" - for the APB0 gates on A23
>> > +	"allwinner,sun8i-h3-apb0-gates-clk" - for the APB0 gates on H3
>> >  	"allwinner,sun9i-a80-apb0-gates-clk" - for the APB0 gates on A80
>> >  	"allwinner,sun4i-a10-apb1-clk" - for the APB1 clock
>> >  	"allwinner,sun9i-a80-apb1-clk" - for the APB1 bus clock on A80
>> > diff --git a/drivers/clk/sunxi/clk-simple-gates.c b/drivers/clk/sunxi/clk-simple-gates.c
>> > index f4da52b..6753c87 100644
>> > --- a/drivers/clk/sunxi/clk-simple-gates.c
>> > +++ b/drivers/clk/sunxi/clk-simple-gates.c
>> > @@ -130,6 +130,8 @@ CLK_OF_DECLARE(sun8i_a23_apb2, "allwinner,sun8i-a23-apb2-gates-clk",
>> >  	       sunxi_simple_gates_init);
>> >  CLK_OF_DECLARE(sun8i_a33_ahb1, "allwinner,sun8i-a33-ahb1-gates-clk",
>> >  	       sunxi_simple_gates_init);
>> > +CLK_OF_DECLARE(sun8i_h3_apb0, "allwinner,sun8i-h3-apb0-gates-clk",
>> > +	       sunxi_simple_gates_init);
>> >  CLK_OF_DECLARE(sun9i_a80_ahb0, "allwinner,sun9i-a80-ahb0-gates-clk",
>> >  	       sunxi_simple_gates_init);
>> >  CLK_OF_DECLARE(sun9i_a80_ahb1, "allwinner,sun9i-a80-ahb1-gates-clk",
>>
>> It seems that the other compatible strings are there for historical
>> reasons. Why do you need a new one with such a specific name?
>>
>> It would have been more sensible to add a generic compatible string as
>> "allwinner,apb-gates", letting the removal of the other strings for a
>> later patch...
>
>Yeah, it's a good idea, and it's probably time that we move to that.
>
>However, I'd like to keep per-soc and per-clocks compatibles in the
>DT, in case we need to protect a clock in the future. That doesn't
>prevent to have two compatibles thoughe, the specific and the generic.
>

So now I'm not sure what you mean. You suggest that I should keep using 
specific (sun8i_h3_apb0) or change to generic (apb-gates) in my patch? 

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Thread

[PATCH v3 0/5] pinctrl: sunxi: Add H3 R_PIO controller support  Krzysztof Adamski <k@japko.eu> - 2016-02-04 00:40 +0100
  [PATCH v3 3/5] pinctrl: sunxi: Add H3 R_PIO controller support Krzysztof Adamski <k@japko.eu> - 2016-02-04 00:40 +0100
    Re: [PATCH v3 3/5] pinctrl: sunxi: Add H3 R_PIO controller support Chen-Yu Tsai <wens@csie.org> - 2016-02-05 10:50 +0100
    Re: [PATCH v3 3/5] pinctrl: sunxi: Add H3 R_PIO controller support Maxime Ripard <maxime.ripard@free-electrons.com> - 2016-02-05 10:50 +0100
  [PATCH v3 1/5] clk: sunxi: Add apb0 gates for H3 Krzysztof Adamski <k@japko.eu> - 2016-02-04 00:40 +0100
    Re: [PATCH v3 1/5] clk: sunxi: Add apb0 gates for H3 Jean-Francois Moine <moinejf@free.fr> - 2016-02-04 15:50 +0100
      Re: [PATCH v3 1/5] clk: sunxi: Add apb0 gates for H3 Krzysztof Adamski <k@japko.eu> - 2016-02-04 22:00 +0100
        Re: [PATCH v3 1/5] clk: sunxi: Add apb0 gates for H3 Maxime Ripard <maxime.ripard@free-electrons.com> - 2016-02-05 12:20 +0100
      Re: [PATCH v3 1/5] clk: sunxi: Add apb0 gates for H3 Maxime Ripard <maxime.ripard@free-electrons.com> - 2016-02-05 12:20 +0100
        Re: [PATCH v3 1/5] clk: sunxi: Add apb0 gates for H3 Krzysztof Adamski <k@japko.eu> - 2016-02-05 13:00 +0100
        Re: [PATCH v3 1/5] clk: sunxi: Add apb0 gates for H3 Jean-Francois Moine <moinejf@free.fr> - 2016-02-06 11:30 +0100
  [PATCH v3 2/5] dts: sun8i-h3: Add APB0 related clocks and resets Krzysztof Adamski <k@japko.eu> - 2016-02-04 00:40 +0100

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