linux-kernel - Re: [PATCH v2 0/4] Improves polling mode of s3c64xx driver

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Message-ID: <c49881dc-f283-6981-3e03-02fb02b5ce54@linaro.org>
Date:   Wed, 19 Apr 2023 09:59:36 +0200
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Jaewon Kim <jaewon02.kim@...sung.com>,
        Mark Brown <broonie@...nel.org>, Andi Shyti <andi@...zian.org>,
        Alim Akhtar <alim.akhtar@...sung.com>
Cc:     linux-spi@...r.kernel.org, linux-samsung-soc@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Chanho Park <chanho61.park@...sung.com>
Subject: Re: [PATCH v2 0/4] Improves polling mode of s3c64xx driver

On 19/04/2023 08:06, Jaewon Kim wrote:
> 1.
> s3cx64xx driver was supporting polling mode using quirk for SOC without DMA.
> However, in order to use PIO mode as an optional rather than a quirk, when DMA
> is not described, spi operates with pio mode rather than probe fail.
> 
> 2.
> Fixed the problem of high CPU usage in PIO mode.
> 
> 3. 
> If the transfer data size is larger than 32-bit, IRQ base PIO mode used.
> 

What changed in the patches? You need to provide changelog.

Best regards,
Krzysztof