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Date: Fri, 26 Jan 2024 15:54:58 +0100
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Subject: Re: [PATCH v3 04/17] dt-bindings: soc: mobileye: add EyeQ5 OLB system
 controller
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To: =?UTF-8?Q?Th=C3=A9o_Lebrun?= <theo.lebrun@bootlin.com>,
 Rob Herring <robh@kernel.org>
Cc: Gregory CLEMENT <gregory.clement@bootlin.com>,
 Michael Turquette <mturquette@baylibre.com>, Stephen Boyd
 <sboyd@kernel.org>, Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
 Conor Dooley <conor+dt@kernel.org>,
 Thomas Bogendoerfer <tsbogend@alpha.franken.de>,
 Linus Walleij <linus.walleij@linaro.org>, =?UTF-8?B?UmFmYcWCIE1pxYJlY2tp?=
 <rafal@milecki.pl>, Philipp Zabel <p.zabel@pengutronix.de>,
 Vladimir Kondratiev <vladimir.kondratiev@mobileye.com>,
 linux-mips@vger.kernel.org, linux-clk@vger.kernel.org,
 devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
 Thomas Petazzoni <thomas.petazzoni@bootlin.com>,
 Tawfik Bayouk <tawfik.bayouk@mobileye.com>, linux-gpio@vger.kernel.org
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 <CYNRCGYA1PJ2.FYENLB4SRJWH@bootlin.com>
 <8054e01d-0a1e-45b6-b62a-25303e8f4593@linaro.org>
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From: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
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In-Reply-To: <CYOMZE0XIEIR.7Q1BDZCKX1E@bootlin.com>
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On 26/01/2024 13:28, Théo Lebrun wrote:
>>>
>>> 		pinctrl0: pinctrl-a {
>>> 			compatible = "mobileye,eyeq5-a-pinctrl";
>>> 			reg = <0x0B0 0x30>;
>>> 		};
>>>
>>> 		pinctrl1: pinctrl-b {
>>> 			compatible = "mobileye,eyeq5-b-pinctrl";
>>> 			reg = <0x0B0 0x30>;
>>
>> Duplicate reg?
> 
> Yes, the mapping is intertwined. Else it could be three ressources per
> pinctrl. Just really small ones.
> 
>  - 0xB0 mapping   A
>  - 0xB4 mapping   B
>  - 0xB8
>  - 0xBC
>  - 0xC0 pull-down A
>  - 0xC4 pull-up   A
>  - 0xC8 pull-down B
>  - 0xCC pull-up   B
>  - 0xD0 drive-strength lo A
>  - 0xD4 drive-strength hi A
>  - 0xD8 drive-strength lo B
>  - 0xDC drive-strength hi B
> 
> 0xB8 is unrelated (I2C speed & SPI CS). 0xBC is a hole.

Then maybe Rob's idea of one pinctrl device is better...

Best regards,
Krzysztof