media: imx: imx7-media-csi: Simplify imx7_csi_rx_fifo_clear()
There's no need to read the CSICR1 register before each write in imx7_csi_rx_fifo_clear(). Simplify the function. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Rui Miguel Silva <rmfrfs@gmail.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
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