netdev - Re: [PATCH v2 06/13] staging: Replace all spi->chip_select and spi->cs

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Message-ID: <Y8poZ1wN8/dAO3H/@kroah.com>
Date:   Fri, 20 Jan 2023 11:09:43 +0100
From:   Greg KH <gregkh@...uxfoundation.org>
To:     Amit Kumar Mahapatra <amit.kumar-mahapatra@....com>
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Subject: Re: [PATCH v2 06/13] staging: Replace all spi->chip_select and
 spi->cs_gpiod references with function call

On Fri, Jan 20, 2023 at 12:23:35AM +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.
> 
> Signed-off-by: Amit Kumar Mahapatra <amit.kumar-mahapatra@....com>

Reviewed-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>