linux-kernel - Re: [PATCH v1 18/43] spi: ep93xx: add DT support for Cirrus EP93xx

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Date:   Sat, 3 Jun 2023 23:27:21 +0300
From:   andy.shevchenko@...il.com
To:     Nikita Shubin <nikita.shubin@...uefel.me>
Cc:     Alexander Sverdlin <alexander.sverdlin@...il.com>,
        Arnd Bergmann <arnd@...db.de>,
        Linus Walleij <linus.walleij@...aro.org>,
        Mark Brown <broonie@...nel.org>,
        Michael Peters <mpeters@...eddedts.com>,
        Kris Bahnsen <kris@...eddedts.com>, linux-spi@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v1 18/43] spi: ep93xx: add DT support for Cirrus EP93xx

Thu, Jun 01, 2023 at 08:34:09AM +0300, Nikita Shubin kirjoitti:
> - find register range from the device tree
> - provide clock access via of
> - use_dma as a DT node

...

> +static struct ep93xx_spi_info *ep93xx_spi_get_platdata(struct platform_device *pdev)
> +{
> +	struct device_node *np = pdev->dev.of_node;

> +	if (np && of_property_read_bool(np, "ep9301,use-dma"))

Excessive check for np to be NULL, this is implied by the _read_bool() anyway.

> +		dt_spi_info.use_dma = 1;

> +	return &dt_spi_info;
> +}

...

> +	master->dev.of_node = pdev->dev.of_node;

device_set_node();

-- 
With Best Regards,
Andy Shevchenko