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Message-ID: <530CFE39.7050204@gmail.com>
Date: Tue, 25 Feb 2014 21:34:01 +0100
From: Sebastian Hesselbarth <sebastian.hesselbarth@...il.com>
To: Jason Cooper <jason@...edaemon.net>
CC: Linus Walleij <linus.walleij@...aro.org>,
Andrew Lunn <andrew@...n.ch>,
"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
Gregory Clement <gregory.clement@...e-electrons.com>,
"linux-arm-kernel@...ts.infradead.org"
<linux-arm-kernel@...ts.infradead.org>,
Thomas Petazzoni <thomas.petazzoni@...e-electrons.com>,
Ezequiel Garcia <ezequiel.garcia@...e-electrons.com>
Subject: Re: [PATCH 00/10] pinctrl: mvebu: remove hard-coded addresses from
Dove pinctrl
On 02/25/2014 09:04 PM, Jason Cooper wrote:
> Sebastian,
>
> On Tue, Feb 25, 2014 at 08:23:35PM +0100, Sebastian Hesselbarth wrote:
>> [Cooked down Cc list to relevant people and added Ezequiel who agreed
>> to test on Armada 375/38x.]
>>
>> On 02/25/2014 04:43 PM, Jason Cooper wrote:
>>> On Tue, Feb 25, 2014 at 04:30:45PM +0100, Sebastian Hesselbarth wrote:
>>>> On 02/25/14 16:16, Jason Cooper wrote:
>>>>> On Tue, Feb 25, 2014 at 10:36:54AM +0100, Linus Walleij wrote:
>>>>>> On Mon, Feb 24, 2014 at 7:10 PM, Jason Cooper <jason@...edaemon.net> wrote:
>>>>>>> I've now created mvebu/pinctrl-dove for this series. It's based on
>>>>>>> v3.14-rc1, and depends on mvebu/pinctrl (which depends on
>>>>>>> mvebu/pinctrl-3xx).
>>>>>>>
>>>>>>> I've kept this series in a separate branch in case we encounter an
>>>>>>> unforeseen problem with something in here. Then this branch can be
>>>>>>> dropped, and /pinctrl-3xx and /pinctrl will still make it in.
>>>>>>>
>>>>>>> So, all patches except 3 and 4 are in mvebu/pinctrl-dove. 3 and 4 are
>>>>>>> in mvebu/dt.
>>>>>>
>>>>>> OK so what should I be pulling in first now?
>>>>>
>>>>> Of course I woke up this morning not happy with this :-/ Here's what it
>>>>> looks like currently:
>>>>>
>>>>> /v3.14-rc1
>>>>> |
>>>>> --+---+---+---+---+ mvebu/pinctrl-3xx
>>>>> | \
>>>>> |---+---+---+---+---+---+---+ mvebu/pinctrl
>>>>> \ \
>>>>> \---------------------------+---+---+---+ mvebu/pinctrl-dove
>>>>>
>>>>> Not to scale.
>>>>>
>>>>>
>>>>> I would prefer to do:
>>>>>
>>>>> /v3.14-rc1
>>>>> |
>>>>> --+---+---+---+---+ mvebu/pinctrl-cleanup
>>>>> | \
>>>>> |----------------+--+---+---+ mvebu/pinctrl-3xx
>>>>> \ \
>>>>> \----------------+---+---+--+---+---+---+ mvebu/pinctrl-dove
>>>>>
>>>>> But this would mean moving some patches to branches other than what they
>>>>> were sent with. The advantage is that /pinctrl-3xx and /pinctrl-dove
>>>>> don't depend on each other, and only depend on -cleanup. Which is great
>>>>> if there is something wrong in either branch.
>>>>>
>>>>> Sebastian, I can cherry-pick the patches around, but you know the code
>>>>> better than any of us, do you foresee any problems with this scenario?
>>>>
>>>> If Thomas agrees, I can rework Armada 375/38x pinctrl stubs to fit on
>>>> mvebu/pinctrl. That should allow you to have mvebu/pinctrl-dove
>>>> independent of mvebu/pinctrl-3xx.
>>>>
>>>> Not a big deal, I'd just pick 375/38x patches from mvebu/pinctrl and
>>>> squash them into mvebu/pinctrl-3xx. The only "issue" is that DT
>>>> documentation update patches from mvebu/pinctrl-dove have to be split
>>>> too.
>>>>
>>>> I'll prepare the three new branches for you and Thomas to look at
>>>> today.
>>>
>>> Ok, great. Thanks Sebastian!
>>
>> Ok, branches based on v3.14-rc1 with above dependencies can be found on:
>>
>> https://github.com/shesselba/linux-dove.git for-mvebu/pinctrl-cleanup
>> https://github.com/shesselba/linux-dove.git for-mvebu/pinctrl-3xx
>> https://github.com/shesselba/linux-dove.git for-mvebu/pinctrl-dove
>>
>> and an a-i-o branch to ease testing:
>>
>> https://github.com/shesselba/linux-dove.git for-mvebu/all-merged-in
>>
>> @Jason: I guess we should resend all three branches as individual
>> patches on list somehow.
>
> Damn! So close!
>
> $ git diff mvebu/pinctrl-dove shesselba/for-mvebu/all-merged-in
> diff --git a/arch/arm/boot/dts/dove.dtsi b/arch/arm/boot/dts/dove.dtsi
> index 2b76524f4aa7..eeb08edb67ac 100644
> --- a/arch/arm/boot/dts/dove.dtsi
> +++ b/arch/arm/boot/dts/dove.dtsi
> @@ -390,7 +390,9 @@
>
> pinctrl: pin-ctrl@...00 {
> compatible = "marvell,dove-pinctrl";
> - reg = <0xd0200 0x10>;
> + reg = <0xd0200 0x14>,
> + <0xd0440 0x04>,
> + <0xd802c 0x08>;
> clocks = <&gate_clk 22>;
>
> pmx_gpio_0: pmx-gpio-0 {
> @@ -614,6 +616,12 @@
> interrupts = <5>;
> };
>
> + gconf: global-config@...2c {
> + compatible = "marvell,dove-global-config",
> + "syscon";
> + reg = <0xe802c 0x14>;
> + };
> +
> gpio2: gpio-ctrl@...00 {
> compatible = "marvell,orion-gpio";
> #gpio-cells = <2>;
> diff --git a/drivers/pinctrl/mvebu/pinctrl-armada-38x.c b/drivers/pinctrl/mvebu/pinctrl-armada-38x.c
> index 322ca8cb63eb..1049f82fb62f 100644
> --- a/drivers/pinctrl/mvebu/pinctrl-armada-38x.c
> +++ b/drivers/pinctrl/mvebu/pinctrl-armada-38x.c
> @@ -428,7 +428,6 @@ static int armada_38x_pinctrl_probe(struct platform_device *pdev)
> return PTR_ERR(mpp_base);
>
> soc->variant = (unsigned) match->data & 0xff;
> -
> soc->controls = armada_38x_mpp_controls;
> soc->ncontrols = ARRAY_SIZE(armada_38x_mpp_controls);
> soc->gpioranges = armada_38x_mpp_gpio_ranges;
>
>
> If you can drop the dtsi changes (I have them in mvebu/dt), and fix the
> whitespace change, then we can merge them as is.
Done.
> Thanks a ton for handling this!
No problem, thanks for resolving the dependencies :)
Sebastian
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