linux-kernel - Re: [PATCH v3 1/2] iio: addac: stx104: Migrate to the regmap API

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Date:   Sat, 1 Apr 2023 14:49:06 +0100
From:   Jonathan Cameron <jic23@...nel.org>
To:     Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Cc:     William Breathitt Gray <william.gray@...aro.org>,
        Lars-Peter Clausen <lars@...afoo.de>,
        linux-iio@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 1/2] iio: addac: stx104: Migrate to the regmap API


> 
> > +	gpio_config = (struct gpio_regmap_config) {
> > +		.parent = dev,
> > +		.regmap = dio_map,
> > +		.ngpio = STX104_NGPIO,
> > +		.names = stx104_names,
> > +		.reg_dat_base = GPIO_REGMAP_ADDR(STX104_DIO_REG),
> > +		.reg_set_base = GPIO_REGMAP_ADDR(STX104_DIO_REG),
> > +		.ngpio_per_reg = STX104_NGPIO,
> > +		.reg_mask_xlate = stx104_reg_mask_xlate,
> > +		.drvdata = dio_map,
> > +	};  
> 
> Not sure of compound literal is good to have in such case, but if
> Jonathan asked for that...

I didn't like the separately zeroing of the structure in a different
place in the code.  This avoids that (but then so would using an explicit
memset just before filling the rest in.)

Jonathan