diff options
Diffstat (limited to 'drivers/mmc/host/renesas_sdhi_sys_dmac.c')
| -rw-r--r-- | drivers/mmc/host/renesas_sdhi_sys_dmac.c | 18 |
1 files changed, 7 insertions, 11 deletions
diff --git a/drivers/mmc/host/renesas_sdhi_sys_dmac.c b/drivers/mmc/host/renesas_sdhi_sys_dmac.c index 890f192dedbd..1a4016f635d3 100644 --- a/drivers/mmc/host/renesas_sdhi_sys_dmac.c +++ b/drivers/mmc/host/renesas_sdhi_sys_dmac.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 /* * DMA support use of SYS DMAC with SDHI SD/SDIO controller * @@ -5,10 +6,6 @@ * Copyright (C) 2016-17 Sang Engineering, Wolfram Sang * Copyright (C) 2017 Horms Solutions, Simon Horman * Copyright (C) 2010-2011 Guennadi Liakhovetski - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #include <linux/device.h> @@ -213,10 +210,8 @@ static void renesas_sdhi_sys_dmac_start_dma_rx(struct tmio_mmc_host *host) goto pio; } - if (sg->length < TMIO_MMC_MIN_DMA_LEN) { - host->force_pio = true; + if (sg->length < TMIO_MMC_MIN_DMA_LEN) return; - } /* The only sg element can be unaligned, use our bounce buffer then */ if (!aligned) { @@ -240,6 +235,7 @@ static void renesas_sdhi_sys_dmac_start_dma_rx(struct tmio_mmc_host *host) desc = NULL; ret = cookie; } + host->dma_on = true; } pio: if (!desc) { @@ -286,10 +282,8 @@ static void renesas_sdhi_sys_dmac_start_dma_tx(struct tmio_mmc_host *host) goto pio; } - if (sg->length < TMIO_MMC_MIN_DMA_LEN) { - host->force_pio = true; + if (sg->length < TMIO_MMC_MIN_DMA_LEN) return; - } /* The only sg element can be unaligned, use our bounce buffer then */ if (!aligned) { @@ -318,6 +312,7 @@ static void renesas_sdhi_sys_dmac_start_dma_tx(struct tmio_mmc_host *host) desc = NULL; ret = cookie; } + host->dma_on = true; } pio: if (!desc) { @@ -498,7 +493,8 @@ static const struct soc_device_attribute gen3_soc_whitelist[] = { static int renesas_sdhi_sys_dmac_probe(struct platform_device *pdev) { - if (of_device_get_match_data(&pdev->dev) == &of_rcar_gen3_compatible && + if ((of_device_get_match_data(&pdev->dev) == &of_rcar_gen3_compatible || + of_device_get_match_data(&pdev->dev) == &of_rcar_r8a7795_compatible) && !soc_device_match(gen3_soc_whitelist)) return -ENODEV; |