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Date: Mon, 27 Aug 2012 06:43:31 -0700
From: Ben Dooks <ben.dooks@...ethink.co.uk>
To: Linus Walleij <linus.walleij@...aro.org>
Cc: Sebastian Hesselbarth <sebastian.hesselbarth@...il.com>,
Grant Likely <grant.likely@...retlab.ca>,
Rob Herring <rob.herring@...xeda.com>,
Rob Landley <rob@...dley.net>,
Russell King <linux@....linux.org.uk>,
Lior Amsalem <alior@...vell.com>, Andrew Lunn <andrew@...n.ch>,
Gregory CLEMENT <gregory.clement@...e-electrons.com>,
Thomas Petazzoni <thomas.petazzoni@...e-electrons.com>,
<devicetree-discuss@...ts.ozlabs.org>, <linux-doc@...r.kernel.org>,
<linux-kernel@...r.kernel.org>,
<linux-arm-kernel@...ts.infradead.org>,
Stephen Warren <swarren@...dotorg.org>
Subject: Re: [PATCH 03/11] pinctrl: mvebu: kirkwood pinctrl driver
On 20/08/2012 06:49, Linus Walleij wrote:
> On Sat, Aug 11, 2012 at 2:56 PM, Sebastian Hesselbarth
> <sebastian.hesselbarth@...il.com> wrote:
>
>> This patch adds a SoC specific pinctrl driver for Marvell Kirkwood
>> SoCs
>> plus DT binding documentation. This driver will use the mvebu
>> pinctrl
>> driver core.
>
> Thanks for working on Kirkwood. Love this platform.
>
>> diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
>> index cd3d827..361f513 100644
>> --- a/arch/arm/Kconfig
>> +++ b/arch/arm/Kconfig
>> @@ -596,6 +596,7 @@ config ARCH_KIRKWOOD
>> select GENERIC_CLOCKEVENTS
>> select NEED_MACH_IO_H
>> select PLAT_ORION
>> + select PINCTRL
>
> select PINCTRL_KIRKWOOD too I think.
> Then it's just automatic.
>
>> diff --git a/drivers/pinctrl/Kconfig b/drivers/pinctrl/Kconfig
>> index e2427eb..1f84090 100644
>> --- a/drivers/pinctrl/Kconfig
>> +++ b/drivers/pinctrl/Kconfig
>> @@ -147,7 +147,7 @@ config PINCTRL_COH901
>>
>> config PINCTRL_MVEBU
>> bool "Marvell SoC pin controller drivers"
>> - depends on ARCH_MVEBU || ARCH_DOVE
>> + depends on ARCH_MVEBU || ARCH_DOVE || ARCH_KIRKWOOD
>
> As stated elsewhere I think this should be
> depends on PLAT_ORION
>
>> +config PINCTRL_KIRKWOOD
>> + bool "Support for Marvell Kirkwood SoCs"
>> + depends on PINCTRL_MVEBU
>
> depends on ARCH_KIRKWOOD
> select PINCTRL_MVEBU
>
> (...)
>> diff --git a/drivers/pinctrl/pinctrl-kirkwood.c
>> b/drivers/pinctrl/pinctrl-kirkwood.c
>> +static struct mvebu_pinctrl_soc_info kirkwood_pinctrl_info;
>> +
>> +static struct of_device_id kirkwood_pinctrl_of_match[]
>> __devinitdata = {
>> + { .compatible = "marvell,88f6180-pinctrl",
>> + .data = (void
>> *)VARIANT_MV88F6180 },
>> + { .compatible = "marvell,88f6190-pinctrl",
>> + .data = (void
>> *)VARIANT_MV88F6190 },
>> + { .compatible = "marvell,88f6192-pinctrl",
>> + .data = (void
>> *)VARIANT_MV88F6192 },
>> + { .compatible = "marvell,88f6281-pinctrl",
>> + .data = (void
>> *)VARIANT_MV88F6281 },
>> + { .compatible = "marvell,88f6282-pinctrl",
>> + .data = (void
>> *)VARIANT_MV88F6282 },
>> + { }
>> +};
>
> I'm thinking this variant should maybe be an enum... unless it is
> strongly established somewhere in Orion/Marvell stuff.
>
>> +static int __devinit kirkwood_pinctrl_probe(struct platform_device
>> *pdev)
>> +{
>> + struct mvebu_pinctrl_soc_info *soc = &kirkwood_pinctrl_info;
>> + const struct of_device_id *match =
>> + of_match_device(kirkwood_pinctrl_of_match,
>> &pdev->dev);
>> +
>> + if (match) {
>> + soc->variant = (unsigned)match->data & 0xff;
>> + switch (soc->variant) {
>> + case VARIANT_MV88F6180:
>> + soc->controls = mv88f6180_mpp_controls;
>> + soc->ncontrols =
>> ARRAY_SIZE(mv88f6180_mpp_controls);
>> + soc->modes = mv88f6xxx_mpp_modes;
>> + soc->nmodes =
>> ARRAY_SIZE(mv88f6xxx_mpp_modes);
>> + soc->gpioranges = mv88f6180_gpio_ranges;
>> + soc->ngpioranges =
>> ARRAY_SIZE(mv88f6180_gpio_ranges);
>> + break;
>> + case VARIANT_MV88F6190:
>> + case VARIANT_MV88F6192:
>> + soc->controls = mv88f619x_mpp_controls;
>> + soc->ncontrols =
>> ARRAY_SIZE(mv88f619x_mpp_controls);
>> + soc->modes = mv88f6xxx_mpp_modes;
>> + soc->nmodes =
>> ARRAY_SIZE(mv88f6xxx_mpp_modes);
>> + soc->gpioranges = mv88f619x_gpio_ranges;
>> + soc->ngpioranges =
>> ARRAY_SIZE(mv88f619x_gpio_ranges);
>> + break;
>> + case VARIANT_MV88F6281:
>> + case VARIANT_MV88F6282:
>> + soc->controls = mv88f628x_mpp_controls;
>> + soc->ncontrols =
>> ARRAY_SIZE(mv88f628x_mpp_controls);
>> + soc->modes = mv88f6xxx_mpp_modes;
>> + soc->nmodes =
>> ARRAY_SIZE(mv88f6xxx_mpp_modes);
>> + soc->gpioranges = mv88f628x_gpio_ranges;
>> + soc->ngpioranges =
>> ARRAY_SIZE(mv88f628x_gpio_ranges);
>> + break;
>> + }
>> + pdev->dev.platform_data = soc;
>> + }
>> + return mvebu_pinctrl_probe(pdev);
>> +}
Why not have structures defining the soc-> parameters and use that in
the
of_match list?
--
Ben
--
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