Re: [PATCH v2] spi: omap2-mcspi: Add support for GPIO chipselects
From: Mark Brown
Date: Tue Apr 28 2015 - 10:34:38 EST
On Mon, Apr 27, 2015 at 08:21:50PM -0500, Michael Welling wrote:
> Before I send another patch how does this look?
> if (gpio_is_valid(spi->cs_gpio)) {
> if (cs_active)
> gpio_set_value(spi->cs_gpio, spi->mode & SPI_CS_HIGH);
> else
> gpio_set_value(spi->cs_gpio, !(spi->mode & SPI_CS_HIGH));
> }
That's good but please have braces around the inner if for clarity.
> If I were to attempt to convert the driver to use the core chipselect support,
> how would I go about doing it?
> Is there another driver that I can use for reference?
Martin and Ezequiel already gave you some good examples - in general
anything providing the set_cs() operation should be reasonable to look
at.
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