Messages in this thread Patch in this message | | | From | Greg Kroah-Hartman <> | Subject | [PATCH 5.10 332/663] mmc: renesas_sdhi_internal_dmac: Fix DMA buffer alignment from 8 to 128-bytes | Date | Mon, 1 Mar 2021 17:09:40 +0100 |
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From: Takeshi Saito <takeshi.saito.xv@renesas.com>
[ Upstream commit d7aefb2887601cf1fc3f86f55d43b2c9aece5e8f ]
According to the latest datasheet, the internal DMAC buffer alignment R-Car Gen3 SDHI HW should be 128-bytes. So, fix it.
Signed-off-by: Takeshi Saito <takeshi.saito.xv@renesas.com> [shimoda: revise commit description, rebase] Fixes: 2a68ea7896e3 ("mmc: renesas-sdhi: add support for R-Car Gen3 SDHI DMAC") Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Tested-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Link: https://lore.kernel.org/r/1608114572-1892-2-git-send-email-yoshihiro.shimoda.uh@renesas.com Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Signed-off-by: Sasha Levin <sashal@kernel.org> --- drivers/mmc/host/renesas_sdhi_internal_dmac.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/mmc/host/renesas_sdhi_internal_dmac.c b/drivers/mmc/host/renesas_sdhi_internal_dmac.c index fe13e1ea22dcc..f3e76d6b3e3fe 100644 --- a/drivers/mmc/host/renesas_sdhi_internal_dmac.c +++ b/drivers/mmc/host/renesas_sdhi_internal_dmac.c @@ -186,8 +186,8 @@ renesas_sdhi_internal_dmac_start_dma(struct tmio_mmc_host *host, mmc_get_dma_dir(data))) goto force_pio; - /* This DMAC cannot handle if buffer is not 8-bytes alignment */ - if (!IS_ALIGNED(sg_dma_address(sg), 8)) + /* This DMAC cannot handle if buffer is not 128-bytes alignment */ + if (!IS_ALIGNED(sg_dma_address(sg), 128)) goto force_pio_with_unmap; if (data->flags & MMC_DATA_READ) { -- 2.27.0
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