linux-kernel - Re: [PATCH 06/10] spi: rzv2m-csi: Squash timing settings into one statement

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Message-ID: <CAHp75VdyUhvk9JA4oW6iYjK=YdatjG3OVa0APMQrc+un2EyadQ@mail.gmail.com>
Date:   Sat, 15 Jul 2023 10:54:48 +0300
From:   Andy Shevchenko <andy.shevchenko@...il.com>
To:     Fabrizio Castro <fabrizio.castro.jz@...esas.com>
Cc:     Mark Brown <broonie@...nel.org>,
        Geert Uytterhoeven <geert+renesas@...der.be>,
        linux-spi@...r.kernel.org, linux-kernel@...r.kernel.org,
        Chris Paterson <Chris.Paterson2@...esas.com>,
        Biju Das <biju.das@...renesas.com>,
        Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>,
        linux-renesas-soc@...r.kernel.org
Subject: Re: [PATCH 06/10] spi: rzv2m-csi: Squash timing settings into one statement

On Sat, Jul 15, 2023 at 4:04 AM Fabrizio Castro
<fabrizio.castro.jz@...esas.com> wrote:
>
> Register CLKSEL hosts the configuration for both clock polarity
> and data phase, and both values can be set in one write operation.
>
> Squash the clock polarity and data phase register writes into
> one statement, for efficiency.

...

>         /* Setup clock polarity and phase timing */
> -       rzv2m_csi_reg_write_bit(csi, CSI_CLKSEL, CSI_CLKSEL_CKP,
> -                               !(spi->mode & SPI_CPOL));
> -       rzv2m_csi_reg_write_bit(csi, CSI_CLKSEL, CSI_CLKSEL_DAP,
> -                               !(spi->mode & SPI_CPHA));
> +       rzv2m_csi_reg_write_bit(csi, CSI_CLKSEL, CSI_CLKSEL_MODE,
> +                               ~spi->mode & SPI_MODE_X_MASK);

I think this now regresses due to the absence of parentheses.

-- 
With Best Regards,
Andy Shevchenko