usb: fotg210-hcd: remove casting dma_alloc_coherent

Remove casting the values returned by dma_alloc_coherent.
Signed-off-by: NXu Wang <vulab@iscas.ac.cn>
Link: https://lore.kernel.org/r/20201120083054.8973-1-vulab@iscas.ac.cnSigned-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/usb/host/fotg210-hcd.c

@@ -1951,7 +1951,7 @@ static int fotg210_mem_init(struct fotg210_hcd *fotg210, gfp_t flags)
 		goto fail;
 
 	/* Hardware periodic table */
-	fotg210->periodic = (__le32 *)
+	fotg210->periodic =
 		dma_alloc_coherent(fotg210_to_hcd(fotg210)->self.controller,
 				fotg210->periodic_size * sizeof(__le32),
 				&fotg210->periodic_dma, 0);