On 05/08/2012 07:21 AM, Linus Walleij wrote:
> On Fri, May 4, 2012 at 2:18 PM, John Crispin <email@example.com> wrote:
>> Implement support for pinctrl on lantiq/xway socs. The IO core found on these
>> socs has the registers for pinctrl, pinconf and gpio mixed up in the same
>> register range. As the gpio_chip handling is only a few lines, the driver
>> implements the gpio functionality. This obseletes the old gpio driver that
>> located in the arch/ folder.
>> diff --git a/drivers/pinctrl/Kconfig b/drivers/pinctrl/Kconfig
>> index f73a5ea..a19bac96 100644
>> --- a/drivers/pinctrl/Kconfig
>> +++ b/drivers/pinctrl/Kconfig
>> @@ -30,6 +30,11 @@ config PINCTRL_PXA3xx
>> select PINMUX
>> +config PINCTRL_LANTIQ
>> + bool
>> + select PINMUX
>> + select PINCONF
> depends on LANTIQ
> I don't think anyone else is going to want to compile
This Kconfig option is selected by the ARCH Kconfig, so only selected at
the right time. The user won't get prompted for it since there's no
string after "bool". I think this is OK. Tegra's pinctrl Kconfig option
doesn't have any "depends ARCH_TEGRA" here either, although I note that
many other pinctrl drivers do.
>> config PINCTRL_MMP2
>> bool "MMP2 pin controller driver"
>> depends on ARCH_MMP
>> @@ -83,6 +88,10 @@ config PINCTRL_COH901
>> COH 901 335 and COH 901 571/3. They contain 3, 5 or 7
>> ports of 8 GPIO pins each.
>> +config PINCTRL_XWAY
>> + bool
>> + select PINCTRL_LANTIQ
> Shouldn't this be:
> depends on SOC_TYPE_XWAY
Maybe, but see comments above.
> depends on PINCTRL_LANTIQ
Selecting PINCTRL_LANTIQ seems more appropriate; the ARCH Kconfig just
selects PINCTRL_XWAY when appropriate, and that then selects anything it
(IIRC, the driver for SOC_TYPE_XWAY uses the driver for LANTIQ, not the
other way around?)
> So LANTIQ selects it's pinctrl driver, the the xway SoC
> selects its driver and they both are dependent on their
> respective system.