From: richard.genoud@gmail.com (Richard Genoud)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 17/23] [BUG] atmel-spi && DMA: OOPS if buffer > 4400 bytes
Date: Tue, 14 Aug 2012 15:49:31 +0200 [thread overview]
Message-ID: <1344952177-18385-18-git-send-email-richard.genoud@gmail.com> (raw)
In-Reply-To: <1344952177-18385-1-git-send-email-richard.genoud@gmail.com>
this is just a quick and suboptimal workaround
---
drivers/spi/spi-atmel.c | 3 ++-
1 files changed, 2 insertions(+), 1 deletions(-)
diff --git a/drivers/spi/spi-atmel.c b/drivers/spi/spi-atmel.c
index d629422..0899da2 100644
--- a/drivers/spi/spi-atmel.c
+++ b/drivers/spi/spi-atmel.c
@@ -638,7 +638,8 @@ static void atmel_spi_next_xfer(struct spi_master *master,
as->current_transfer = xfer;
- if (atmel_spi_use_dma(xfer)) {
+ /* quick (and *really* not optimal) workaround for DMA BUG */
+ if (atmel_spi_use_dma(xfer) && (xfer->len < BUFFER_SIZE)) {
if (!atmel_spi_next_xfer_dma(master, xfer))
return;
else
--
1.7.2.5
next prev parent reply other threads:[~2012-08-14 13:49 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-08-14 13:49 [PATCH 00/23] work in progress: SPI controller w/DMA SAM9X5 Richard Genoud
2012-08-14 13:49 ` [PATCH 01/23] of: add dma-mask binding Richard Genoud
2012-08-14 13:49 ` [PATCH 02/23] of_spi: add generic binding support to specify cs gpio Richard Genoud
2012-08-14 13:49 ` [PATCH 03/23] spi/atmel_spi: trivial: change some comments Richard Genoud
2012-08-14 13:49 ` [PATCH 04/23] spi/atmel_spi: add physical base address Richard Genoud
2012-08-14 13:49 ` [PATCH 05/23] spi/atmel_spi: call unmapping on transfers buffers Richard Genoud
2012-08-14 13:49 ` [PATCH 06/23] spi/atmel_spi: status information passed through controller data Richard Genoud
2012-08-14 13:49 ` [PATCH 07/23] spi/atmel_spi: add flag to controller data for lock operations Richard Genoud
2012-08-14 13:49 ` [PATCH 08/23] spi/atmel: add DT support Richard Genoud
2012-08-14 13:49 ` [PATCH 09/23] spi/atmel_spi: add dmaengine support Richard Genoud
2012-08-14 13:49 ` [PATCH 10/23] spi-atmel: update with dmaengine interface Richard Genoud
2012-08-14 13:49 ` [PATCH 11/23] spi-atmel: fix __init/__devinit sections mismatch Richard Genoud
2012-08-14 13:49 ` [PATCH 12/23] spi-atmel: Fix spi-atmel driver to adapt to slave_config changes Richard Genoud
2012-08-14 13:49 ` [PATCH 13/23] AT91 DMA OF support Richard Genoud
2012-08-14 14:47 ` Nicolas Ferre
2012-08-14 13:49 ` [PATCH 14/23] add at91sam9x5 Kconfig ARCH/SOC link Richard Genoud
2012-08-14 13:49 ` [PATCH 15/23] spi-atmel: add DMA OF support Richard Genoud
2012-08-14 13:49 ` [PATCH 16/23] [BUG] SPI: array out of bound => no CS Richard Genoud
2012-08-14 13:49 ` Richard Genoud [this message]
2012-08-14 13:49 ` [PATCH 18/23] sam9x5: declare SPI clocks Richard Genoud
2012-08-14 13:49 ` [PATCH 19/23] spi-atmel: add sam9x5 SPI in device tree Richard Genoud
2012-08-14 13:49 ` [PATCH 20/23] spi-atmel: add dma support in sam9x5 " Richard Genoud
2012-08-14 13:49 ` [PATCH 21/23] spi-atmel OF: complete documentation Richard Genoud
2012-08-14 13:49 ` [PATCH 22/23] spi-atmel: complete DMA slave OF documentation Richard Genoud
2012-08-14 13:49 ` [PATCH 23/23] sam9x5ek DTS: enable SPI dataflash Richard Genoud
2012-08-14 14:16 ` [PATCH 00/23] work in progress: SPI controller w/DMA SAM9X5 Richard Genoud
2012-08-14 15:29 ` Nicolas Ferre
2012-08-14 17:44 ` Jean-Christophe PLAGNIOL-VILLARD
2012-08-14 17:48 ` Nicolas Ferre
2012-08-16 7:07 ` Richard Genoud
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