dmaengine: stm32-mdma: driver defers probe for clock and reset
This patch changes error log when failing to get the clock so that it is not printed on failure with probe deferring. It also defers probe when reset controller is expected but has not been probed yet when MDMA device is probed. Signed-off-by: Etienne Carriere <etienne.carriere@st.com> Signed-off-by: Amelie Delaunay <amelie.delaunay@st.com> Link: https://lore.kernel.org/r/20200127085334.13163-5-amelie.delaunay@st.comSigned-off-by: Vinod Koul <vkoul@kernel.org>
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