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Message-ID: <3eb9d5c2-149c-460c-9684-3fdaf946c400@ieee.org>
Date: Mon, 18 Mar 2024 13:41:38 -0500
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Subject: Re: [PATCH v4 4/5] mikrobus: Add mikroBUS driver
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To: Markus Elfring <Markus.Elfring@web.de>,
 Ayush Singh <ayushdevel1325@gmail.com>,
 Vaishnav M A <vaishnav@beagleboard.org>, devicetree@vger.kernel.org,
 kernel-janitors@vger.kernel.org, linux-spi@vger.kernel.org,
 linux-arm-kernel@lists.infradead.org, lorforlinux@beagleboard.org,
 greybus-dev@lists.linaro.org
Cc: LKML <linux-kernel@vger.kernel.org>, Alex Elder <elder@kernel.org>,
 Arnd Bergmann <arnd@arndb.de>, Conor Dooley <conor+dt@kernel.org>,
 Derek Kiernan <derek.kiernan@amd.com>, Dragan Cvetic
 <dragan.cvetic@amd.com>, Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
 Jason Kridner <jkridner@beagleboard.org>, Johan Hovold <johan@kernel.org>,
 Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
 Mark Brown <broonie@kernel.org>, Nishanth Menon <nm@ti.com>,
 Rob Herring <robh@kernel.org>, Robert Nelson
 <robertcnelson@beagleboard.org>, Tero Kristo <kristo@kernel.org>,
 Vaishnav M A <vaishnav.a@ti.com>, Vignesh Raghavendra <vigneshr@ti.com>
References: <20240317193714.403132-5-ayushdevel1325@gmail.com>
 <4fe6f68a-786c-4e3d-b97d-847d6965d1d3@web.de>
From: Alex Elder <elder@ieee.org>
In-Reply-To: <4fe6f68a-786c-4e3d-b97d-847d6965d1d3@web.de>
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On 3/18/24 12:58 PM, Markus Elfring wrote:
> …
>> +++ b/drivers/misc/mikrobus/mikrobus_core.c
> …
>> +static int mikrobus_pinctrl_setup(struct mikrobus_port *port,
>> +				  struct addon_board_info *board)
>> +{
>> +	int ret;
>> +
>> +	if (!board || board->pin_state[MIKROBUS_PIN_PWM] == MIKROBUS_STATE_PWM)
>> +		ret = mikrobus_pinctrl_select(port, "pwm_default");
>> +	else
>> +		ret = mikrobus_pinctrl_select(port, "pwm_gpio");
> …
> 
> How do you think about to avoid the specification of a bit of duplicate source code here
> by using conditional operator expressions?
> 
> 	ret = mikrobus_pinctrl_select(port,
> 				      ((!board ||
> 					board->pin_state[MIKROBUS_PIN_PWM] == MIKROBUS_STATE_PWM)
> 				      ? "pwm_default"
> 				      : "pwm_gpio"));

No.

It's a complex enough bit of logic without trying to bury
it inside the parameters passed to the function.

					-Alex

> 
> 
> Regards,
> Markus
>