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authorChuanhong Guo2020-03-15 20:13:37 +0800
committerBartosz Golaszewski2020-03-25 09:50:45 +0100
commitd19d2de61fb131abcd29f7c61d3f168f687bfd6e (patch)
treefda8cb7a01b6d9df22d36c5c8e5b4c1a6feb5dc7 /fs
parentd1ee7e1f5c9191afb69ce46cc7752e4257340a31 (diff)
gpio: mmio: introduce BGPIOF_NO_SET_ON_INPUT
Some gpio controllers ignores pin value writing when that pin is configured as input mode. As a result, bgpio_dir_out should set pin to output before configuring pin values or gpio pin values can't be set up properly. Introduce two variants of bgpio_dir_out: bgpio_dir_out_val_first and bgpio_dir_out_dir_first, and assign direction_output according to a new flag: BGPIOF_NO_SET_ON_INPUT. Signed-off-by: Chuanhong Guo <gch981213@gmail.com> Tested-by: René van Dorst <opensource@vdorst.com> Reviewed-by: Sergio Paracuellos <sergio.paracuellos@gmail.com> Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
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