linux-kernel - Re: [PATCH v2 07/10] pinctrl: sunxi: Add H3 PIO controller support

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Message-ID: <5559B65D.8020108@gmail.com>
Date:	Mon, 18 May 2015 11:52:29 +0200
From:	Jens Kuske <jenskuske@...il.com>
To:	Maxime Ripard <maxime.ripard@...e-electrons.com>
CC:	Emilio López <emilio@...pez.com.ar>,
	Mike Turquette <mturquette@...aro.org>,
	Linus Walleij <linus.walleij@...aro.org>,
	Rob Herring <robh+dt@...nel.org>, Chen-Yu Tsai <wens@...e.org>,
	Vishnu Patekar <vishnupatekar0510@...il.com>,
	Hans de Goede <hdegoede@...hat.com>,
	devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org, linux-sunxi@...glegroups.com
Subject: Re: [PATCH v2 07/10] pinctrl: sunxi: Add H3 PIO controller support

Hi,

On 05/17/15 16:30, Maxime Ripard wrote:
> On Fri, May 15, 2015 at 06:38:57PM +0200, Jens Kuske wrote:
>> The H3 uses the same pin controller as previous SoC's from Allwinner.
>> Add support for the pins controlled by the main PIO controller.
>>
>> Signed-off-by: Jens Kuske <jenskuske@...il.com>
>> ---
>>  .../bindings/pinctrl/allwinner,sunxi-pinctrl.txt   |   1 +
>>  drivers/pinctrl/sunxi/Kconfig                      |   8 +
>>  drivers/pinctrl/sunxi/Makefile                     |   1 +
>>  drivers/pinctrl/sunxi/pinctrl-sun8i-h3.c           | 522 +++++++++++++++++++++
>>  4 files changed, 532 insertions(+)
>>  create mode 100644 drivers/pinctrl/sunxi/pinctrl-sun8i-h3.c
>>
>> diff --git a/Documentation/devicetree/bindings/pinctrl/allwinner,sunxi-pinctrl.txt b/Documentation/devicetree/bindings/pinctrl/allwinner,sunxi-pinctrl.txt
>> index fdd8046..c46af8e 100644
>> --- a/Documentation/devicetree/bindings/pinctrl/allwinner,sunxi-pinctrl.txt
>> +++ b/Documentation/devicetree/bindings/pinctrl/allwinner,sunxi-pinctrl.txt
>> @@ -16,6 +16,7 @@ Required properties:
>>    "allwinner,sun7i-a20-pinctrl"
>>    "allwinner,sun8i-a23-pinctrl"
>>    "allwinner,sun8i-a23-r-pinctrl"
>> +  "allwinner,sun8i-h3-pinctrl"
>>  - reg: Should contain the register physical address and length for the
>>    pin controller.
>>  
>> diff --git a/drivers/pinctrl/sunxi/Kconfig b/drivers/pinctrl/sunxi/Kconfig
>> index 2eb893e..6c1cec5 100644
>> --- a/drivers/pinctrl/sunxi/Kconfig
>> +++ b/drivers/pinctrl/sunxi/Kconfig
>> @@ -43,6 +43,14 @@ config PINCTRL_SUN8I_A23_R
>>  	depends on RESET_CONTROLLER
>>  	select PINCTRL_SUNXI_COMMON
>>  
>> +config PINCTRL_SUN8I_H3
>> +	tristate "Allwinner H3 pinctrl driver"
>> +	default MACH_SUN8I
>> +	select PINCTRL_SUNXI_COMMON
> 
> PINCTRL_SUNXI_COMMON should probably be turned into a tristate as well

Probably, as well as all the other SoC specific drivers. But I think
this should be a separate patch, its independent from this addition.

But given the remove-panic problems I mentioned earlier this whole
pinctrl-as-module topic needs some attention from more experienced devs
I guess, this is beyond my current kernel knowledge.

Regards,
Jens

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