From a028b435bf37fa091f701ee44e45cc152740fb8f Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Niklas=20S=C3=B6derlund?= Date: Wed, 18 Apr 2018 20:20:58 +0200 Subject: [PATCH] mmc: renesas_sdhi: use helpers to access struct scatterlist members MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Instead of directly accessing the members of struct scatterlist use the helpers mmc_get_dma_dir() and sg_dma_address() in renesas_sdhi_internal_dmac_start_dma(). Based on previous work by Masaharu Hayakawa. Signed-off-by: Niklas Söderlund [rebased to mmc/next] Signed-off-by: Wolfram Sang Reviewed-by: Simon Horman Signed-off-by: Ulf Hansson --- drivers/mmc/host/renesas_sdhi_internal_dmac.c | 8 +++----- 1 file changed, 3 insertions(+), 5 deletions(-) diff --git a/drivers/mmc/host/renesas_sdhi_internal_dmac.c b/drivers/mmc/host/renesas_sdhi_internal_dmac.c index 6af946d16d24..6a86619d3f85 100644 --- a/drivers/mmc/host/renesas_sdhi_internal_dmac.c +++ b/drivers/mmc/host/renesas_sdhi_internal_dmac.c @@ -157,7 +157,6 @@ renesas_sdhi_internal_dmac_start_dma(struct tmio_mmc_host *host, { struct scatterlist *sg = host->sg_ptr; u32 dtran_mode = DTRAN_MODE_BUS_WID_TH | DTRAN_MODE_ADDR_MODE; - enum dma_data_direction dir; int ret; /* This DMAC cannot handle if sg_len is not 1 */ @@ -169,16 +168,15 @@ renesas_sdhi_internal_dmac_start_dma(struct tmio_mmc_host *host, if (data->flags & MMC_DATA_READ) { dtran_mode |= DTRAN_MODE_CH_NUM_CH1; - dir = DMA_FROM_DEVICE; if (test_bit(SDHI_INTERNAL_DMAC_ONE_RX_ONLY, &global_flags) && test_and_set_bit(SDHI_INTERNAL_DMAC_RX_IN_USE, &global_flags)) goto force_pio; } else { dtran_mode |= DTRAN_MODE_CH_NUM_CH0; - dir = DMA_TO_DEVICE; } - ret = dma_map_sg(&host->pdev->dev, sg, host->sg_len, dir); + ret = dma_map_sg(&host->pdev->dev, sg, host->sg_len, + mmc_get_dma_dir(data)); if (ret == 0) goto force_pio; @@ -188,7 +186,7 @@ renesas_sdhi_internal_dmac_start_dma(struct tmio_mmc_host *host, renesas_sdhi_internal_dmac_dm_write(host, DM_CM_DTRAN_MODE, dtran_mode); renesas_sdhi_internal_dmac_dm_write(host, DM_DTRAN_ADDR, - sg->dma_address); + sg_dma_address(sg)); return;