Commit b7ced877 authored by Masahiro Yamada's avatar Masahiro Yamada Committed by Ulf Hansson
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mmc: uniphier-sd: fix DMA disabling 



Once DMA is enabled, it is not possible to disable it because
uniphier_sd_dma_endisable() always sets the DMA_ENABLE_DMASDRW bit
regardless of the argument 'enable'. It should disable DMA when
'enable' is false.

Signed-off-by: default avatarMasahiro Yamada <yamada.masahiro@socionext.com>
Acked-by: default avatarWolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: default avatarUlf Hansson <ulf.hansson@linaro.org>
parent d3dd5db0

drivers/mmc/host/uniphier-sd.c

+1 −1
Original line number Diff line number Diff line
@@ -78,7 +78,7 @@ static void *uniphier_sd_priv(struct tmio_mmc_host *host) 


static void uniphier_sd_dma_endisable(struct tmio_mmc_host *host, int enable)

{

	sd_ctrl_write16(host, CTL_DMA_ENABLE, DMA_ENABLE_DMASDRW);

	sd_ctrl_write16(host, CTL_DMA_ENABLE, enable ? DMA_ENABLE_DMASDRW : 0);

}



/* external DMA engine */