dmaengine: sudmac: remove unused driver

SUDMAC driver was introduced in v3.10 but was never integrated for use
by any platform. As it is unused remove it.
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Acked-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Vinod Koul <vkoul@kernel.org>

drivers/dma/sh/Kconfig

@@ -47,9 +47,3 @@ config RENESAS_USB_DMAC
 	help
 	  This driver supports the USB-DMA controller found in the Renesas
 	  SoCs.
-
-config SUDMAC
-	tristate "Renesas SUDMAC support"
-	depends on SH_DMAE_BASE
-	help
-	  Enable support for the Renesas SUDMAC controllers.

drivers/dma/sh/Makefile

@@ -15,4 +15,3 @@ obj-$(CONFIG_SH_DMAE) += shdma.o
 
 obj-$(CONFIG_RCAR_DMAC) += rcar-dmac.o
 obj-$(CONFIG_RENESAS_USB_DMAC) += usb-dmac.o
-obj-$(CONFIG_SUDMAC) += sudmac.o

include/linux/sudmac.h

-/*
- * Header for the SUDMAC driver
- *
- * Copyright (C) 2013 Renesas Solutions Corp.
- *
- * This is free software; you can redistribute it and/or modify
- * it under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
- */
-#ifndef SUDMAC_H
-#define SUDMAC_H
-
-#include <linux/dmaengine.h>
-#include <linux/shdma-base.h>
-#include <linux/types.h>
-
-/* Used by slave DMA clients to request DMA to/from a specific peripheral */
-struct sudmac_slave {
-	struct shdma_slave	shdma_slave;	/* Set by the platform */
-};
-
-/*
- * Supplied by platforms to specify, how a DMA channel has to be configured for
- * a certain peripheral
- */
-struct sudmac_slave_config {
-	int		slave_id;
-};
-
-struct sudmac_channel {
-	unsigned long	offset;
-	unsigned long	config;
-	unsigned long	wait;		/* The configuable range is 0 to 3 */
-	unsigned long	dint_end_bit;
-};
-
-struct sudmac_pdata {
-	const struct sudmac_slave_config *slave;
-	int slave_num;
-	const struct sudmac_channel *channel;
-	int channel_num;
-};
-
-/* Definitions for the sudmac_channel.config */
-#define SUDMAC_TX_BUFFER_MODE	BIT(0)
-#define SUDMAC_RX_END_MODE	BIT(1)
-
-/* Definitions for the sudmac_channel.dint_end_bit */
-#define SUDMAC_DMA_BIT_CH0	BIT(0)
-#define SUDMAC_DMA_BIT_CH1	BIT(1)
-
-#endif