linux-kernel - Re: [PATCH 3/3] spi: amd: Add support for version AMDI0062

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Message-ID: <2126f6c0-fd6e-1f8e-b450-837270d03d31@collabora.com>
Date:   Wed, 9 Feb 2022 14:18:59 -0300
From:   André Almeida <andrealmeid@...labora.com>
To:     Mark Brown <broonie@...nel.org>
Cc:     Sanjay R Mehta <sanju.mehta@....com>, linux-spi@...r.kernel.org,
        linux-kernel@...r.kernel.org, kernel@...labora.com,
        Lucas Tanure <tanureal@...nsource.cirrus.com>,
        Nehal Bakulchandra Shah <Nehal-Bakulchandra.shah@....com>,
        Charles Keepax <ckeepax@...nsource.cirrus.com>
Subject: Re: [PATCH 3/3] spi: amd: Add support for version AMDI0062

Às 14:14 de 09/02/22, Mark Brown escreveu:
> On Wed, Feb 09, 2022 at 01:57:33PM -0300, André Almeida wrote:
> 
>> @@ -190,6 +237,9 @@ static inline int amd_spi_fifo_xfer(struct amd_spi *amd_spi,
>>  	message->actual_length = tx_len + rx_len + 1;
>>  	/* complete the transaction */
>>  	message->status = 0;
>> +
>> +	if (amd_spi->version == AMD_SPI_V2)
>> +		amd_spi_clear_chip(amd_spi, message->spi->chip_select);
>>  	spi_finalize_current_message(master);
>>  
>>  	return 0;
> 
> Why is this one not a switch statement - what happens with v3?

A switch statement should work as well, but currently v1 does nothing
and there's no v3 for now. I think we can change for a switch if v3
requires to do something here as well.