netdev - Re: [PATCH V5 01/15] spi: Replace all spi->chip_select and spi->cs

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Message-ID: <479f5b1e-6ac1-47c7-9f5b-4080e0c77c16@sirena.org.uk>
Date:   Mon, 6 Mar 2023 17:32:49 +0000
From:   Mark Brown <broonie@...nel.org>
To:     Amit Kumar Mahapatra <amit.kumar-mahapatra@....com>
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Subject: Re: [PATCH V5 01/15] spi: Replace all spi->chip_select and
 spi->cs_gpiod references with function call

On Mon, Mar 06, 2023 at 10:50:55PM +0530, Amit Kumar Mahapatra wrote:
> Supporting multi-cs in spi drivers would require the chip_select & cs_gpiod
> members of struct spi_device to be an array. But changing the type of these
> members to array would break the spi driver functionality. To make the
> transition smoother introduced four new APIs to get/set the
> spi->chip_select & spi->cs_gpiod and replaced all spi->chip_select and
> spi->cs_gpiod references with get or set API calls.
> While adding multi-cs support in further patches the chip_select & cs_gpiod
> members of the spi_device structure would be converted to arrays & the
> "idx" parameter of the APIs would be used as array index i.e.,
> spi->chip_select[idx] & spi->cs_gpiod[idx] respectively.

This doesn't apply against current code, there was a rework of the
mpc512x-psc driver.  Please check and resend.

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