[PATCH 07/10] spi: s3c64xx: Remove the 'set_level' callback from controller data

Jassi Brar jassisinghbrar at gmail.com
Wed May 9 04:03:54 EDT 2012


On Wed, May 9, 2012 at 3:34 AM, Thomas Abraham
<thomas.abraham at linaro.org> wrote:
>
> The set_level callback in the controller data, which is used to configure
> the slave select line, cannot be supported when migrating the driver to
> device tree based discovery. Since all the platforms currently use gpio
> as the slave select line, this callback can be removed from the
> controller data and replaced with call to gpio_set_value in the driver.
>
This patch is ok.
Separately, you might also want to see if we really need the air-tight
protection of spin_lock_irqsave around enable_cs - IIRC someone
had a CS coming out of an gpio extender connected over I2C



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