diff options
Diffstat (limited to 'drivers/media/pci/tw68/tw68-risc.c')
| -rw-r--r-- | drivers/media/pci/tw68/tw68-risc.c | 49 |
1 files changed, 21 insertions, 28 deletions
diff --git a/drivers/media/pci/tw68/tw68-risc.c b/drivers/media/pci/tw68/tw68-risc.c index 7439db212a69..e793db6134e4 100644 --- a/drivers/media/pci/tw68/tw68-risc.c +++ b/drivers/media/pci/tw68/tw68-risc.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-or-later /* * tw68_risc.c * Part of the device driver for Techwell 68xx based cards @@ -13,30 +14,21 @@ * * Refactored and updated to the latest v4l core frameworks: * - * Copyright (C) 2014 Hans Verkuil <hverkuil@xs4all.nl> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. + * Copyright (C) 2014 Hans Verkuil <hverkuil@kernel.org> */ #include "tw68.h" /** - * @rp pointer to current risc program position - * @sglist pointer to "scatter-gather list" of buffer pointers - * @offset offset to target memory buffer - * @sync_line 0 -> no sync, 1 -> odd sync, 2 -> even sync - * @bpl number of bytes per scan line - * @padding number of bytes of padding to add - * @lines number of lines in field - * @jump insert a jump at the start + * tw68_risc_field + * @rp: pointer to current risc program position + * @sglist: pointer to "scatter-gather list" of buffer pointers + * @offset: offset to target memory buffer + * @sync_line: 0 -> no sync, 1 -> odd sync, 2 -> even sync + * @bpl: number of bytes per scan line + * @padding: number of bytes of padding to add + * @lines: number of lines in field + * @jump: insert a jump at the start */ static __le32 *tw68_risc_field(__le32 *rp, struct scatterlist *sglist, unsigned int offset, u32 sync_line, @@ -120,18 +112,18 @@ static __le32 *tw68_risc_field(__le32 *rp, struct scatterlist *sglist, * memory for the dma controller "program" and then fills in that * memory with the appropriate "instructions". * - * @pci_dev structure with info about the pci + * @pci: structure with info about the pci * slot which our device is in. - * @risc structure with info about the memory + * @buf: structure with info about the memory * used for our controller program. - * @sglist scatter-gather list entry - * @top_offset offset within the risc program area for the + * @sglist: scatter-gather list entry + * @top_offset: offset within the risc program area for the * first odd frame line - * @bottom_offset offset within the risc program area for the + * @bottom_offset: offset within the risc program area for the * first even frame line - * @bpl number of data bytes per scan line - * @padding number of extra bytes to add at end of line - * @lines number of scan lines + * @bpl: number of data bytes per scan line + * @padding: number of extra bytes to add at end of line + * @lines: number of scan lines */ int tw68_risc_buffer(struct pci_dev *pci, struct tw68_buf *buf, @@ -159,7 +151,8 @@ int tw68_risc_buffer(struct pci_dev *pci, instructions = fields * (1 + (((bpl + padding) * lines) / PAGE_SIZE) + lines) + 4; buf->size = instructions * 8; - buf->cpu = pci_alloc_consistent(pci, buf->size, &buf->dma); + buf->cpu = dma_alloc_coherent(&pci->dev, buf->size, &buf->dma, + GFP_KERNEL); if (buf->cpu == NULL) return -ENOMEM; |