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authorDoug Anderson <dianders@chromium.org>2014-09-03 22:44:26 +0200
committerMark Brown <broonie@kernel.org>2014-09-05 00:54:11 +0200
commit62946172c81578477fcbb26478aebaa31353488d (patch)
tree9e274b45ca36ec40a60921ff1d96641b10ca1241 /Documentation/devicetree/bindings/spi
parentspi/rockchip: Fix the wait_for_idle() timeout (diff)
downloadlinux-62946172c81578477fcbb26478aebaa31353488d.tar.xz
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spi/rockchip: Don't warn if SPI is busy but disabled
The reference manual from Rockchip claims this about the BSF (SPI Busy Flag): * 0 - SPI is idle or disabled * 1 - SPI is actively transferring data The above doesn't quite appear to be true. Specifically I found the busy bit set when SPI was disabled. Let's change the WARN_ON() so we only check the busy bit if the controller was enabled. Signed-off-by: Doug Anderson <dianders@chromium.org> Signed-off-by: Mark Brown <broonie@kernel.org>
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