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From: "H. Nikolaus Schaller" <hns@goldelico.com>
To: Linus Walleij <linus.walleij@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>,
	Alexandre Courbot <gnurou@gmail.com>,
	Pawel Moll <pawel.moll@arm.com>,
	Ian Campbell <ijc+devicetree@hellion.org.uk>,
	kernel@pyra-handheld.com,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
	"open list:GPIO SUBSYSTEM" <linux-gpio@vger.kernel.org>,
	devicetree <devicetree@vger.kernel.org>,
	Rob Herring <robh+dt@kernel.org>,
	Kumar Gala <galak@codeaurora.org>,
	Discussions about the Letux Kernel <letux-kernel@openphoenux.org>,
	Andy Shevchenko <andy.shevchenko@gmail.com>
Subject: Re: [PATCH v5 4/7] gpio: pca953x: define masks for addressing common and extended registers
Date: Fri, 4 May 2018 09:33:57 +0200	[thread overview]
Message-ID: <71415CEC-6763-4658-A0C4-7AD4E3C1746D@goldelico.com> (raw)
In-Reply-To: <FA9DBCAF-2EA5-4317-BBA3-E2D6A9EAC5D4@goldelico.com>

Hi Linus,

> Am 02.05.2018 um 14:36 schrieb H. Nikolaus Schaller <hns@goldelico.com>:
> 
> 
>> Am 02.05.2018 um 14:29 schrieb Andy Shevchenko <andy.shevchenko@gmail.com>:
>> 
>> On Sat, Apr 28, 2018 at 7:31 PM, H. Nikolaus Schaller <hns@goldelico.com> wrote:
>>> These mask bits are to be used to map the extended register
>>> addreseses (which are defined for an unsupported 8-bit pcal chip)
>>> to 16 and 24 bit chips (pcal6524).
>>> 

>>> 
>>> +#define PCAL_GPIO_MASK         GENMASK(4, 0)
>>> +#define PCAL_PINCTRL_MASK      (~PCAL_GPIO_MASK)
>> 
>> I'm not sure which would be better here
>> 
>> 1) to follow existing style
>> 0x1F
>> 0xE0
>> 
>> 2) to use GENMASK() in both definitions
>> 
>> 3) as it in this patch.
>> 
>> 
>> Whatever Linus prefers.
> 
> Ok, waiting for his suggestion.

Any advice if we should change or keep this?

(Please do not merge before I submit a v6 because there are
some more suggested-by and reviewed-by).

BR and thanks,
Nikolaus

  reply	other threads:[~2018-05-04  7:33 UTC|newest]

Thread overview: 27+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-04-28 16:31 [PATCH v5 0/7] pcal6524 extensions and fixes for pca953x driver H. Nikolaus Schaller
2018-04-28 16:31 ` [PATCH v5 1/7] gpio: pca953x: convert register constants to hex H. Nikolaus Schaller
2018-05-16 11:49   ` Linus Walleij
2018-04-28 16:31 ` [PATCH v5 2/7] gpio: pca953x: add more register definitions for pcal953x H. Nikolaus Schaller
2018-05-16 11:51   ` Linus Walleij
2018-04-28 16:31 ` [PATCH v5 3/7] gpio: pca953x: add more register definitions for pcal6524 H. Nikolaus Schaller
2018-05-16 11:52   ` Linus Walleij
2018-04-28 16:31 ` [PATCH v5 4/7] gpio: pca953x: define masks for addressing common and extended registers H. Nikolaus Schaller
2018-05-02 12:29   ` Andy Shevchenko
2018-05-02 12:36     ` H. Nikolaus Schaller
2018-05-04  7:33       ` H. Nikolaus Schaller [this message]
2018-04-28 16:31 ` [PATCH v5 5/7] gpio: pca953x: fix address calculation for pcal6524 H. Nikolaus Schaller
2018-05-02 12:28   ` Andy Shevchenko
2018-05-02 12:35     ` H. Nikolaus Schaller
2018-05-04  7:30       ` H. Nikolaus Schaller
2018-05-05 10:29         ` Andy Shevchenko
2018-04-28 16:31 ` [PATCH v5 6/7] DTS: Bindings: pca953x add an optional vcc-supply property H. Nikolaus Schaller
2018-05-16 11:55   ` Linus Walleij
2018-04-28 16:31 ` [PATCH v5 7/7] DTS: Bindings: pca953x: add example how to use interrupt-controller and gpio-controller H. Nikolaus Schaller
2018-05-16 11:56   ` Linus Walleij
2018-05-02 11:53 ` [PATCH v5 0/7] pcal6524 extensions and fixes for pca953x driver Linus Walleij
2018-05-02 12:32 ` Andy Shevchenko
2018-05-16 11:53 ` Linus Walleij
2018-05-16 11:56   ` Linus Walleij
2018-05-16 13:32   ` H. Nikolaus Schaller
2018-05-16 14:31     ` Linus Walleij
2018-05-16 14:37       ` H. Nikolaus Schaller

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