dmaengine: imx-sdma: Fix the event id check to include RX event for UART6
On i.MX6UL/ULL and i.MX6SX the DMA event id for the RX channel of UART6 is '0'. To fix the broken DMA support for UART6, we change the check for event_id0 to include '0' as a valid id. Fixes: 1ec1e82f ("dmaengine: Add Freescale i.MX SDMA support") Signed-off-by: Frieder Schrempf <frieder.schrempf@kontron.de> Reviewed-by: Fabio Estevam <festevam@gmail.com> Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/20200225082139.7646-1-frieder.schrempf@kontron.deSigned-off-by: Vinod Koul <vkoul@kernel.org>
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