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authorLinus Torvalds <torvalds@linux-foundation.org>2022-09-08 13:13:47 -0400
committerLinus Torvalds <torvalds@linux-foundation.org>2022-09-08 13:13:47 -0400
commit506357871c18e06565840d71c2ef9f818e19f460 (patch)
treefd60f5d73f6178c611133895316a375417dbcf3d /include/linux
parentMerge tag 'regulator-fix-v6.0-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator (diff)
parentspi: spi: Fix queue hang if previous transfer failed (diff)
downloadlinux-dev-506357871c18e06565840d71c2ef9f818e19f460.tar.xz
linux-dev-506357871c18e06565840d71c2ef9f818e19f460.zip
Merge tag 'spi-fix-v6.0-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi
Pull spi fixes from Mark Brown: "Several fixes that came in since the merge window, the major one being a fix for the spi-mux driver which was broken by the performance optimisations due to it peering inside the core's data structures more than it should" * tag 'spi-fix-v6.0-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi: spi: spi: Fix queue hang if previous transfer failed spi: mux: Fix mux interaction with fast path optimisations spi: cadence-quadspi: Disable irqs during indirect reads spi: bitbang: Fix lsb-first Rx
Diffstat (limited to 'include/linux')
-rw-r--r--include/linux/spi/spi.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/spi/spi.h b/include/linux/spi/spi.h
index e6c73d5ff1a8..f089ee1ead58 100644
--- a/include/linux/spi/spi.h
+++ b/include/linux/spi/spi.h
@@ -469,6 +469,7 @@ extern struct spi_device *spi_new_ancillary_device(struct spi_device *spi, u8 ch
* SPI_TRANS_FAIL_NO_START.
* @queue_empty: signal green light for opportunistically skipping the queue
* for spi_sync transfers.
+ * @must_async: disable all fast paths in the core
*
* Each SPI controller can communicate with one or more @spi_device
* children. These make a small bus, sharing MOSI, MISO and SCK signals
@@ -690,6 +691,7 @@ struct spi_controller {
/* Flag for enabling opportunistic skipping of the queue in spi_sync */
bool queue_empty;
+ bool must_async;
};
static inline void *spi_controller_get_devdata(struct spi_controller *ctlr)