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Clark Wang authored
Add a error info when set a speed which greater than half of per-clk of spi module. The minimum SCK period is 2 cycles(CCR[SCKDIV]). So the maximum transfer speed is half of spi per-clk. Signed-off-by: Clark Wang <xiaoning.wang@nxp.com> Signed-off-by: Mark Brown <broonie@kernel.org>
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