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authorLinus Torvalds <torvalds@linux-foundation.org>2012-03-21 10:32:00 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2012-03-21 10:32:00 -0700
commit5f0e685f316a1de6d3af8b23eaf46651faca32ab (patch)
treeaf1ed231b7fcfc65b146be59a0aee699aa9f6353 /include/linux/amba
parentf8974cb71310a05632aada76be6a27576d61e609 (diff)
parent87bf5ab82884c829366914aaa813cc8b07b9fe58 (diff)
downloadvexpress-lsk-5f0e685f316a1de6d3af8b23eaf46651faca32ab.tar.gz
Merge tag 'spi-for-linus' of git://git.secretlab.ca/git/linux-2.6
Pull SPI changes for v3.4 from Grant Likely: "Mostly a bunch of new drivers and driver bug fixes; but this also includes a few patches that create a core message queue infrastructure for the spi subsystem instead of making each driver open code it." * tag 'spi-for-linus' of git://git.secretlab.ca/git/linux-2.6: (34 commits) spi/fsl-espi: Make sure pm is within 2..32 spi/fsl-espi: make the clock computation easier to read spi: sh-hspi: modify write/read method spi: sh-hspi: control spi clock more correctly spi: sh-hspi: convert to using core message queue spi: s3c64xx: Fix build spi: s3c64xx: remove unnecessary callback msg->complete spi: remove redundant variable assignment spi: release lock on error path in spi_pump_messages() spi: Compatibility with direction which is used in samsung DMA operation spi-topcliff-pch: add recovery processing in case wait-event timeout spi-topcliff-pch: supports a spi mode setup and bit order setup by IO control spi-topcliff-pch: Fix issue for transmitting over 4KByte spi-topcliff-pch: Modify pci-bus number dynamically to get DMA device info spi/imx: simplify error handling to free gpios spi: Convert to DEFINE_PCI_DEVICE_TABLE spi: add Broadcom BCM63xx SPI controller driver SPI: add CSR SiRFprimaII SPI controller driver spi-topcliff-pch: fix -Wuninitialized warning spi: Mark spi_register_board_info() __devinit ...
Diffstat (limited to 'include/linux/amba')
-rw-r--r--include/linux/amba/pl022.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/amba/pl022.h b/include/linux/amba/pl022.h
index 572f637299c..3672f40f345 100644
--- a/include/linux/amba/pl022.h
+++ b/include/linux/amba/pl022.h
@@ -241,6 +241,8 @@ struct dma_chan;
* @autosuspend_delay: delay in ms following transfer completion before the
* runtime power management system suspends the device. A setting of 0
* indicates no delay and the device will be suspended immediately.
+ * @rt: indicates the controller should run the message pump with realtime
+ * priority to minimise the transfer latency on the bus.
*/
struct pl022_ssp_controller {
u16 bus_id;
@@ -250,6 +252,7 @@ struct pl022_ssp_controller {
void *dma_rx_param;
void *dma_tx_param;
int autosuspend_delay;
+ bool rt;
};
/**