| From | Greg Kroah-Hartman <> | Subject | [PATCH 5.4 098/191] dmaengine: dma-jz4780: Also break descriptor chains on JZ4725B | Date | Tue, 7 Jan 2020 21:53:38 +0100 |
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From: Paul Cercueil <paul@crapouillou.net>
commit a40c94be2336f3002563c9ae16572143ae3422e2 upstream.
It turns out that the JZ4725B displays the same buggy behaviour as the JZ4740 that was described in commit f4c255f1a747 ("dmaengine: dma-jz4780: Break descriptor chains on JZ4740").
Work around it by using the same workaround previously used for the JZ4740.
Fixes commit f4c255f1a747 ("dmaengine: dma-jz4780: Break descriptor chains on JZ4740")
Cc: <stable@vger.kernel.org> Signed-off-by: Paul Cercueil <paul@crapouillou.net> Link: https://lore.kernel.org/r/20191210165545.59690-1-paul@crapouillou.net Signed-off-by: Vinod Koul <vkoul@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
--- drivers/dma/dma-jz4780.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
--- a/drivers/dma/dma-jz4780.c +++ b/drivers/dma/dma-jz4780.c @@ -1004,7 +1004,8 @@ static const struct jz4780_dma_soc_data static const struct jz4780_dma_soc_data jz4725b_dma_soc_data = { .nb_channels = 6, .transfer_ord_max = 5, - .flags = JZ_SOC_DATA_PER_CHAN_PM | JZ_SOC_DATA_NO_DCKES_DCKEC, + .flags = JZ_SOC_DATA_PER_CHAN_PM | JZ_SOC_DATA_NO_DCKES_DCKEC | + JZ_SOC_DATA_BREAK_LINKS, }; static const struct jz4780_dma_soc_data jz4770_dma_soc_data = {
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