arm: omap2plus: fix ads7846 pendown gpio request
introduced by: 96974a24 (omap: consolidate touch screen initialization among different boards) ads7846 driver can use either gpio_pendown or get_pendown_state() callback. In case of gpio_pendown, it requests the provided gpio_pendown thus resulting in double requesting that gpio: ads7846 spi1.0: failed to request pendown GPIO57 ads7846: probe of spi1.0 failed with error -16 Fix this by restricting the gpio request to the case of get_pendown_state() callback is used. Signed-off-by: NIgor Grinberg <grinberg@compulab.co.il> Tested-by: NThomas Weber <weber@corscience.de> Signed-off-by: NTony Lindgren <tony@atomide.com>
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