diff options
Diffstat (limited to 'packages/linux/linux-2.6.18/atmel_spi-send-zeroes-when-tx_buf-is-not-set.patch')
| -rw-r--r-- | packages/linux/linux-2.6.18/atmel_spi-send-zeroes-when-tx_buf-is-not-set.patch | 48 |
1 files changed, 0 insertions, 48 deletions
diff --git a/packages/linux/linux-2.6.18/atmel_spi-send-zeroes-when-tx_buf-is-not-set.patch b/packages/linux/linux-2.6.18/atmel_spi-send-zeroes-when-tx_buf-is-not-set.patch deleted file mode 100644 index 0cf703d3df..0000000000 --- a/packages/linux/linux-2.6.18/atmel_spi-send-zeroes-when-tx_buf-is-not-set.patch +++ /dev/null @@ -1,48 +0,0 @@ -From e9bce56d6d8913505049cde45d800bb69943f166 Mon Sep 17 00:00:00 2001 -From: Nicolas Ferre <nicolas.ferre@rfo.atmel.com> -Date: Tue, 16 Jan 2007 15:15:36 +0100 -Subject: [ATMEL SPI] Send zeroes when tx_buf is not set - -send zeros when tx_buf is not set (according to the new spi -specification by D.Brownell) cf. - http://lkml.org/lkml/2006/12/22/171 - http://kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=4b1badf5d9ddfc46ad075ca5bfc465972c85cc7c - -Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com> ---- - drivers/spi/atmel_spi.c | 21 ++++++++++----------- - 1 file changed, 10 insertions(+), 11 deletions(-) - -Index: linux-2.6.18-avr32/drivers/spi/atmel_spi.c -=================================================================== ---- linux-2.6.18-avr32.orig/drivers/spi/atmel_spi.c 2007-01-16 18:20:06.000000000 +0100 -+++ linux-2.6.18-avr32/drivers/spi/atmel_spi.c 2007-01-16 18:20:57.000000000 +0100 -@@ -120,18 +120,17 @@ static void atmel_spi_next_xfer(struct s - len = BUFFER_SIZE; - } - if (tx_dma == INVALID_DMA_ADDRESS) { -- if (xfer->tx_buf) { -- tx_dma = as->buffer_dma; -- if (len > BUFFER_SIZE) -- len = BUFFER_SIZE; -+ tx_dma = as->buffer_dma; -+ if (len > BUFFER_SIZE) -+ len = BUFFER_SIZE; -+ if (xfer->tx_buf) - memcpy(as->buffer, xfer->tx_buf, len); -- dma_sync_single_for_device(&as->pdev->dev, -- as->buffer_dma, len, -- DMA_TO_DEVICE); -- } else { -- /* Send undefined data; rx_dma is handy */ -- tx_dma = rx_dma; -- } -+ else -+ /* no tx data: send zeros */ -+ memset(as->buffer, 0, len); -+ dma_sync_single_for_device(&as->pdev->dev, -+ as->buffer_dma, len, -+ DMA_TO_DEVICE); - } - - spi_writel(as, RPR, rx_dma); |