Commit 3e98b9bd authored by Stephen Kitt's avatar Stephen Kitt Committed by Vinod Koul
Browse files

dmaengine: sh: Remove unused shdma-arm.h 



shdma-arm.h was introduced with commit 1e69653d ("DMA: shdma: add
r8a73a4 DMAC data to the device ID table"), and its sole user was
removed with commit a1978861 ("dmaengine: sh: Remove R-Mobile APE6
support"). The latter mentions r8a73a4.dtsi but shdma support was
removed from that with commit cfda8203 ("ARM: dts: r8a73a4: Remove
non-functional DMA support"), so it seems this is safe to remove.

Signed-off-by: default avatarStephen Kitt <steve@sk2.org>
Reviewed-by: default avatarGeert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20221028115336.1052782-1-steve@sk2.org


Signed-off-by: default avatarVinod Koul <vkoul@kernel.org>
parent 73f11324

drivers/dma/sh/shdma-arm.h

deleted100644 → 0
+0 −48
Original line number Diff line number Diff line 
/* SPDX-License-Identifier: GPL-2.0 */

/*

 * Renesas SuperH DMA Engine support

 *

 * Copyright (C) 2013 Renesas Electronics, Inc.

 */



#ifndef SHDMA_ARM_H

#define SHDMA_ARM_H



#include "shdma.h"



/* Transmit sizes and respective CHCR register values */

enum {

	XMIT_SZ_8BIT		= 0,

	XMIT_SZ_16BIT		= 1,

	XMIT_SZ_32BIT		= 2,

	XMIT_SZ_64BIT		= 7,

	XMIT_SZ_128BIT		= 3,

	XMIT_SZ_256BIT		= 4,

	XMIT_SZ_512BIT		= 5,

};



/* log2(size / 8) - used to calculate number of transfers */

#define SH_DMAE_TS_SHIFT {		\

	[XMIT_SZ_8BIT]		= 0,	\

	[XMIT_SZ_16BIT]		= 1,	\

	[XMIT_SZ_32BIT]		= 2,	\

	[XMIT_SZ_64BIT]		= 3,	\

	[XMIT_SZ_128BIT]	= 4,	\

	[XMIT_SZ_256BIT]	= 5,	\

	[XMIT_SZ_512BIT]	= 6,	\

}



#define TS_LOW_BIT	0x3 /* --xx */

#define TS_HI_BIT	0xc /* xx-- */



#define TS_LOW_SHIFT	(3)

#define TS_HI_SHIFT	(20 - 2)	/* 2 bits for shifted low TS */



#define TS_INDEX2VAL(i) \

	((((i) & TS_LOW_BIT) << TS_LOW_SHIFT) |\

	 (((i) & TS_HI_BIT)  << TS_HI_SHIFT))



#define CHCR_TX(xmit_sz) (DM_FIX | SM_INC | RS_ERS | TS_INDEX2VAL((xmit_sz)))

#define CHCR_RX(xmit_sz) (DM_INC | SM_FIX | RS_ERS | TS_INDEX2VAL((xmit_sz)))



#endif