RE: [PATCH] spi: spi-ep93xx: simplify GPIO chip selects

[Hartley Sweeten <HartleyS@xxxxxxxxxxxxxxxxxxx>]

On Wednesday, February 15, 2017 12:02 PM, Mark Brown wrote:
> On Wed, Feb 15, 2017 at 09:44:22AM -0700, H Hartley Sweeten wrote:
>> This driver requires a GPIO line to be used for the chip select of
>> each SPI device.
>> 
>> Remove the ep93xx_spi_chip_ops definition from the platform data
>> and just pass the required GPIO line as the controller_data for
>> each spi_board_info entry. Then handle the gpio directly in the
>> driver.
>
> Why not also use the core GPIO handling?

Mark,

Unless I'm missing something, I don't think I can use the core GPIO
handling with the spi-ep93xx driver.

spi_set_cs() is only called to enable the chip select by the default
implementation of transfer_one_message() and the spi-ep93xx
driver does not use that.

Regards,
Hartley

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