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Pelle Nilsson authored
commit 7d0ec8b6 upstream. Some controller drivers have no need of this callback (spi-altera even causes a NULL pointer dereference because it doesn't register the callback, falsely assuming that it is already optional). Fixes: 30af9b55 ("spi/bitbang: Drop empty setup() functions") Signed-off-by:
Pelle Nilsson <per.nilsson@xelmo.com> Reviewed-by:
Ezequiel Garcia <ezequiel.garcia@vanguardiasur.com.ar> Signed-off-by:
Mark Brown <broonie@kernel.org> Signed-off-by:
Luis Henriques <luis.henriques@canonical.com>
dd563506