From: Andre Przywara <andre.przywara@arm.com>
To: Rob Herring <robh@kernel.org>
Cc: "Maxime Ripard" <maxime.ripard@free-electrons.com>,
"Chen-Yu Tsai" <wens@csie.org>,
linux-sunxi@googlegroups.com, "Arnd Bergmann" <arnd@arndb.de>,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org,
"Emilio López" <emilio@elopez.com.ar>,
"Michael Turquette" <mturquette@baylibre.com>,
"Stephen Boyd" <sboyd@codeaurora.org>,
linux-clk@vger.kernel.org, "Jens Kuske" <jenskuske@gmail.com>,
"Pawel Moll" <pawel.moll@arm.com>,
"Mark Rutland" <mark.rutland@arm.com>,
"Ian Campbell" <ijc+devicetree@hellion.org.uk>,
"Kumar Gala" <galak@codeaurora.org>,
devicetree@vger.kernel.org
Subject: Re: [PATCH 07/11] clk: sunxi: add generic allwinner,sunxi name
Date: Mon, 8 Feb 2016 16:06:15 +0000 [thread overview]
Message-ID: <56B8BCF7.4080701@arm.com> (raw)
In-Reply-To: <20160208155721.GB4677@rob-hp-laptop>
Hi,
On 08/02/16 15:57, Rob Herring wrote:
> On Mon, Feb 01, 2016 at 05:39:26PM +0000, Andre Przywara wrote:
>> The only difference between the different compatible matches at the
>> end of clk-sunxi.c are the critical clocks. Two SoCs get away so far
>> without any, so there is no reason to enumerate those SoCs in here
>> explicitly, though we have to keep them in for compatibility reasons.
>>
>> Rename the init function to highlight this generic feature and add a
>> new, generic DT compatible string which can be used as a fallback value
>> in the future should a particular SoC don't need any special treatment.
>>
>> Signed-off-by: Andre Przywara <andre.przywara@arm.com>
>> ---
>> Documentation/devicetree/bindings/arm/sunxi.txt | 4 ++++
>> drivers/clk/sunxi/clk-sunxi.c | 14 ++++++--------
>> 2 files changed, 10 insertions(+), 8 deletions(-)
>>
>> diff --git a/Documentation/devicetree/bindings/arm/sunxi.txt b/Documentation/devicetree/bindings/arm/sunxi.txt
>> index 7e79fcc..980e065 100644
>> --- a/Documentation/devicetree/bindings/arm/sunxi.txt
>> +++ b/Documentation/devicetree/bindings/arm/sunxi.txt
>> @@ -14,3 +14,7 @@ using one of the following compatible strings:
>> allwinner,sun8i-a83t
>> allwinner,sun8i-h3
>> allwinner,sun9i-a80
>> +
>> +For Allwinner SoCs without any specific needs the generic fallback value of:
>> + allwinner,sunxi
>> +can be used.
>
> Perhaps "fallback" implies this, but be more specific that it can be
> used in addition to a specific string.
Yeah, good point.
But Maxime's latest rework [1] made this patch here actually obsolete,
so we don't match on a root compatible string anymore to register the
sunxi clock drivers. Instead each clock is registered and matched on
it's own compatible string. Much nicer now, IMHO.
Thanks for having a look!
Andre.
[1]
https://git.kernel.org/cgit/linux/kernel/git/mripard/linux.git/commit/?h=sunxi/for-next&id=78e3fb4c745114b16a12458036d48aa96ea5b36d
>> diff --git a/drivers/clk/sunxi/clk-sunxi.c b/drivers/clk/sunxi/clk-sunxi.c
>> index e460a6b..efcce85 100644
>> --- a/drivers/clk/sunxi/clk-sunxi.c
>> +++ b/drivers/clk/sunxi/clk-sunxi.c
>> @@ -1052,14 +1052,12 @@ CLK_OF_DECLARE(sun8i_a23_clk_init, "allwinner,sun8i-a23", sun6i_init_clocks);
>> CLK_OF_DECLARE(sun8i_a33_clk_init, "allwinner,sun8i-a33", sun6i_init_clocks);
>> CLK_OF_DECLARE(sun8i_h3_clk_init, "allwinner,sun8i-h3", sun6i_init_clocks);
>>
>> -static void __init sun8i_a83t_init_clocks(struct device_node *node)
>> +static void __init sunxi_generic_init_clocks(struct device_node *node)
>> {
>> sunxi_init_clocks(NULL, 0);
>> }
>> -CLK_OF_DECLARE(sun8i_a83t_clk_init, "allwinner,sun8i-a83t", sun8i_a83t_init_clocks);
>> -
>> -static void __init sun9i_init_clocks(struct device_node *node)
>> -{
>> - sunxi_init_clocks(NULL, 0);
>> -}
>> -CLK_OF_DECLARE(sun9i_a80_clk_init, "allwinner,sun9i-a80", sun9i_init_clocks);
>> +CLK_OF_DECLARE(sun8i_a83t_clk_init, "allwinner,sun8i-a83t",
>> + sunxi_generic_init_clocks);
>> +CLK_OF_DECLARE(sun9i_a80_clk_init, "allwinner,sun9i-a80",
>> + sunxi_generic_init_clocks);
>> +CLK_OF_DECLARE(sunxi_clk_init, "allwinner,sunxi", sunxi_generic_init_clocks);
>> --
>> 2.6.4
>>
>
next prev parent reply other threads:[~2016-02-08 16:06 UTC|newest]
Thread overview: 62+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-02-01 17:39 [PATCH 00/11] arm64: Introduce Allwinner A64 and Pine64 support Andre Przywara
2016-02-01 17:39 ` [PATCH 01/11] irqchip: sun4i: fix compilation outside of arch/arm Andre Przywara
2016-02-02 14:51 ` [tip:irq/urgent] irqchip/sun4i: Fix compilation outside of arch/ arm tip-bot for Andre Przywara
2016-02-02 15:12 ` [PATCH 01/11] irqchip: sun4i: fix compilation outside of arch/arm Matthias Brugger
2016-02-02 15:32 ` Andre Przywara
2016-02-02 16:50 ` Matthias Brugger
2016-02-01 17:39 ` [PATCH 02/11] crypto: sunxi-ss: prevent compilation on 64-bit Andre Przywara
2016-02-02 3:16 ` Herbert Xu
2016-02-02 8:42 ` [linux-sunxi] " LABBE Corentin
2016-02-06 7:46 ` Herbert Xu
2016-02-01 17:39 ` [PATCH 03/11] drivers: rtc: allow compilation of sun6i RTC for all sunxi SoCs Andre Przywara
2016-02-02 9:44 ` Maxime Ripard
2016-02-04 22:58 ` Alexandre Belloni
2016-02-01 17:39 ` [PATCH 04/11] arm64: Introduce Allwinner SoC config option Andre Przywara
2016-02-02 15:20 ` Matthias Brugger
2016-02-02 15:30 ` Andre Przywara
2016-02-02 16:04 ` Arnd Bergmann
2016-02-01 17:39 ` [PATCH 05/11] drivers: pinctrl: add driver for Allwinner A64 SoC Andre Przywara
2016-02-01 18:27 ` Karsten Merker
2016-02-01 18:45 ` [linux-sunxi] " Karsten Merker
2016-02-01 23:02 ` André Przywara
2016-02-01 22:49 ` André Przywara
2016-02-02 1:58 ` [linux-sunxi] " Siarhei Siamashka
2016-02-02 14:24 ` Andre Przywara
2016-02-02 17:37 ` Maxime Ripard
2016-02-02 10:00 ` Maxime Ripard
2016-02-02 10:09 ` Chen-Yu Tsai
2016-02-02 16:53 ` Andre Przywara
2016-02-04 16:51 ` Maxime Ripard
2016-02-08 15:54 ` Rob Herring
2016-02-08 15:58 ` Andre Przywara
2016-02-09 17:12 ` Maxime Ripard
2016-02-01 17:39 ` [PATCH 06/11] clk: sunxi: add generic multi-parent bus clock gates driver Andre Przywara
2016-02-01 18:40 ` Jean-Francois Moine
2016-02-01 23:01 ` André Przywara
2016-02-01 17:39 ` [PATCH 07/11] clk: sunxi: add generic allwinner,sunxi name Andre Przywara
2016-02-08 15:57 ` Rob Herring
2016-02-08 16:06 ` Andre Przywara [this message]
2016-02-01 17:39 ` [PATCH 08/11] clk: sunxi: improve error reporting for the mux clock Andre Przywara
2016-02-02 18:02 ` Maxime Ripard
2016-02-02 18:05 ` Andre Przywara
2016-02-01 17:39 ` [PATCH 09/11] clk: sunxi: add critical-clocks property to mux clocks Andre Przywara
2016-02-01 17:39 ` [PATCH 10/11] arm64: dts: add Allwinner A64 SoC .dtsi Andre Przywara
2016-02-01 19:05 ` [linux-sunxi] " Karsten Merker
2016-02-01 23:03 ` André Przywara
2016-02-02 16:24 ` Jens Kuske
2016-02-02 16:46 ` Andre Przywara
2016-02-02 17:40 ` Jens Kuske
2016-02-05 8:55 ` Chen-Yu Tsai
2016-02-05 8:50 ` Maxime Ripard
2016-02-08 9:42 ` Andre Przywara
2016-02-23 18:45 ` Maxime Ripard
2016-02-01 17:39 ` [PATCH 11/11] arm64: dts: add Pine64 support Andre Przywara
2016-02-01 19:22 ` [linux-sunxi] " Karsten Merker
2016-02-01 23:04 ` André Przywara
2016-02-05 9:03 ` Maxime Ripard
2016-02-05 10:04 ` Andre Przywara
2016-02-08 0:55 ` [linux-sunxi] " Julian Calaby
2016-02-09 20:33 ` Danny Milosavljevic
2016-02-11 10:32 ` Maxime Ripard
2016-02-02 7:57 ` [PATCH 00/11] arm64: Introduce Allwinner A64 and " lists.nick.betteridge
2016-02-02 8:12 ` André Przywara
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