diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2021-10-15 10:21:46 -0400 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2021-10-15 10:21:46 -0400 |
| commit | 985f6ab93fc986f339654b5cb2e6825839bf3bc5 (patch) | |
| tree | 60f3bb58f23f069095ffafed72c9d0a1154b8a93 /drivers/spi/spi-atmel.c | |
| parent | ccb6a666d555652232e845352b9ff7217aca85cb (diff) | |
| parent | 16a8e2fbb2d49111004efc1c7342e083eafabeb0 (diff) | |
Merge tag 'spi-fix-v5.15-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi
Pull spi fixes from Mark Brown:
"A few small fixes.
Mostly driver specific but there's one in the core which fixes a
deadlock when adding devices on spi-mux that's triggered because
spi-mux is a SPI device which is itself a SPI controller and so can
instantiate devices when registered.
We were using a global lock to protect against reusing chip selects
but they're a per controller thing so moving the lock per controller
resolves that"
* tag 'spi-fix-v5.15-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi:
spi-mux: Fix false-positive lockdep splats
spi: Fix deadlock when adding SPI controllers on SPI buses
spi: bcm-qspi: clear MSPI spifie interrupt during probe
spi: spi-nxp-fspi: don't depend on a specific node name erratum workaround
spi: mediatek: skip delays if they are 0
spi: atmel: Fix PDC transfer setup bug
spi: spidev: Add SPI ID table
spi: Use 'flash' node name instead of 'spi-flash' in example
Diffstat (limited to 'drivers/spi/spi-atmel.c')
| -rw-r--r-- | drivers/spi/spi-atmel.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/spi/spi-atmel.c b/drivers/spi/spi-atmel.c index 788dcdf25f00..f872cf196c2f 100644 --- a/drivers/spi/spi-atmel.c +++ b/drivers/spi/spi-atmel.c @@ -1301,7 +1301,7 @@ static int atmel_spi_one_transfer(struct spi_master *master, * DMA map early, for performance (empties dcache ASAP) and * better fault reporting. */ - if ((!master->cur_msg_mapped) + if ((!master->cur_msg->is_dma_mapped) && as->use_pdc) { if (atmel_spi_dma_map_xfer(as, xfer) < 0) return -ENOMEM; @@ -1381,7 +1381,7 @@ static int atmel_spi_one_transfer(struct spi_master *master, } } - if (!master->cur_msg_mapped + if (!master->cur_msg->is_dma_mapped && as->use_pdc) atmel_spi_dma_unmap_xfer(master, xfer); |