diff options
| author | Stephen Kitt <steve@sk2.org> | 2022-10-28 13:53:36 +0200 |
|---|---|---|
| committer | Vinod Koul <vkoul@kernel.org> | 2022-11-04 20:12:41 +0530 |
| commit | 3e98b9bd8469d0b78975be9b36e423b30b0badbe (patch) | |
| tree | 68d52eca3aa63fb6c58cf55256dffc3dc32fbdce /drivers/dma/sh | |
| parent | 73f11324738a4c23159cf22b08225b6642232982 (diff) | |
| download | linux-3e98b9bd8469d0b78975be9b36e423b30b0badbe.tar.bz2 | |
dmaengine: sh: Remove unused shdma-arm.h
shdma-arm.h was introduced with commit 1e69653d40f1 ("DMA: shdma: add
r8a73a4 DMAC data to the device ID table"), and its sole user was
removed with commit a19788612f51 ("dmaengine: sh: Remove R-Mobile APE6
support"). The latter mentions r8a73a4.dtsi but shdma support was
removed from that with commit cfda82037780 ("ARM: dts: r8a73a4: Remove
non-functional DMA support"), so it seems this is safe to remove.
Signed-off-by: Stephen Kitt <steve@sk2.org>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20221028115336.1052782-1-steve@sk2.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Diffstat (limited to 'drivers/dma/sh')
| -rw-r--r-- | drivers/dma/sh/shdma-arm.h | 48 |
1 files changed, 0 insertions, 48 deletions
diff --git a/drivers/dma/sh/shdma-arm.h b/drivers/dma/sh/shdma-arm.h deleted file mode 100644 index 7459f9a13b5b..000000000000 --- a/drivers/dma/sh/shdma-arm.h +++ /dev/null @@ -1,48 +0,0 @@ -/* 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 |