kernel/git/stable/linux.git/drivers/dma, branch linux-4.17.y

dmaengine: k3dma: Off by one in k3_of_dma_simple_xlate()

2018-08-24T11:06:53+00:00

[ Upstream commit c4c2b7644cc9a41f17a8cc8904efe3f66ae4c7ed ] The d->chans[] array has d->dma_requests elements so the > should be >= here. Fixes: 8e6152bc660e ("dmaengine: Add hisilicon k3 DMA engine driver") Signed-off-by: Dan Carpenter Signed-off-by: Vinod Koul Signed-off-by: Sasha Levin Signed-off-by: Greg Kroah-Hartman

dmaengine: pl330: report BURST residue granularity

2018-08-24T11:06:53+00:00

[ Upstream commit e3f329c600033f011a978a8bc4ddb1e2e94c4f4d ] The reported residue is already calculated in BURST unit granularity, so advertise this capability properly to other devices in the system. Fixes: aee4d1fac887 ("dmaengine: pl330: improve pl330_tx_status() function") Signed-off-by: Marek Szyprowski Signed-off-by: Vinod Koul Signed-off-by: Sasha Levin Signed-off-by: Greg Kroah-Hartman

dmaengine: ti: omap-dma: Fix OMAP1510 incorrect residue_granularity

2018-08-24T11:06:42+00:00

[ Upstream commit c9bd0946da243a8eb86b44ff613e2c813f9b683b ] Commit 0198d7bb8a0c ("ASoC: omap-mcbsp: Convert to use the sdma-pcm instead of omap-pcm") resulted in broken audio playback on OMAP1510 (discovered on Amstrad Delta). When running on OMAP1510, omap-pcm used to obtain DMA offset from snd_dmaengine_pcm_pointer_no_residue() based on DMA interrupt triggered software calculations instead of snd_dmaengine_pcm_pointer() which depended on residue value calculated from omap_dma_get_src_pos(). Similar code path is still available in now used sound/soc/soc-generic-dmaengine-pcm.c but it is not triggered. It was verified already before that omap_get_dma_src_pos() from arch/arm/plat-omap/dma.c didn't work correctly for OMAP1510 - see commit 1bdd7419910c ("ASoC: OMAP: fix OMAP1510 broken PCM pointer callback") for details. Apparently the same applies to its successor, omap_dma_get_src_pos() from drivers/dma/ti/omap-dma.c. On the other hand, snd_dmaengine_pcm_pointer_no_residue() is described as depreciated and discouraged for use in new drivers because of its unreliable accuracy. However, it seems the only working option for OPAM1510 now, as long as a software calculated residue is not implemented as OMAP1510 fallback in omap-dma. Using snd_dmaengine_pcm_pointer_no_residue() code path instead of snd_dmaengine_pcm_pointer() in sound/soc/soc-generic-dmaengine-pcm.c can be triggered in two ways: - by passing pcm->flags |= SND_DMAENGINE_PCM_FLAG_NO_RESIDUE from sound/soc/omap/sdma-pcm.c, - by passing dma_caps.residue_granularity = DMA_RESIDUE_GRANULARITY_DESCRIPTOR from DMA engine. Let's do the latter. Signed-off-by: Janusz Krzysztofik Acked-by: Peter Ujfalusi Signed-off-by: Vinod Koul Signed-off-by: Sasha Levin Signed-off-by: Greg Kroah-Hartman

dmaengine: qcom: bam_dma: check if the runtime pm enabled

2018-05-17T10:46:49+00:00

Disabling pm runtime at probe is not sufficient to get BAM working on remotely controller instances. pm_runtime_get_sync() would return -EACCES in such cases. So check if runtime pm is enabled before returning error from bam functions. Fixes: 5b4a68952a89 ("dmaengine: qcom: bam_dma: disable runtime pm on remote controlled") Signed-off-by: Srinivas Kandagatla Signed-off-by: Vinod Koul

Merge tag 'dmaengine-4.17-rc1' of git://git.infradead.org/users/vkoul/slave-dma

2018-04-10T19:14:37+00:00

Pull dmaengine updates from Vinod Koul: "This time we have couple of new drivers along with updates to drivers: - new drivers for the DesignWare AXI DMAC and MediaTek High-Speed DMA controllers - stm32 dma and qcom bam dma driver updates - norandom test option for dmatest" * tag 'dmaengine-4.17-rc1' of git://git.infradead.org/users/vkoul/slave-dma: (30 commits) dmaengine: stm32-dma: properly mask irq bits dmaengine: stm32-dma: fix max items per transfer dmaengine: stm32-dma: fix DMA IRQ status handling dmaengine: stm32-dma: Improve memory burst management dmaengine: stm32-dma: fix typo and reported checkpatch warnings dmaengine: stm32-dma: fix incomplete configuration in cyclic mode dmaengine: stm32-dma: threshold manages with bitfield feature dt-bindings: stm32-dma: introduce DMA features bitfield dt-bindings: rcar-dmac: Document r8a77470 support dmaengine: rcar-dmac: Fix too early/late system suspend/resume callbacks dmaengine: dw-axi-dmac: fix spelling mistake: "catched" -> "caught" dmaengine: edma: Check the memory allocation for the memcpy dma device dmaengine: at_xdmac: fix rare residue corruption dmaengine: mediatek: update MAINTAINERS entry with MediaTek DMA driver dmaengine: mediatek: Add MediaTek High-Speed DMA controller for MT7622 and MT7623 SoC dt-bindings: dmaengine: Add MediaTek High-Speed DMA controller bindings dt-bindings: Document the Synopsys DW AXI DMA bindings dmaengine: Introduce DW AXI DMAC driver dmaengine: pl330: fix a race condition in case of threaded irqs dmaengine: imx-sdma: fix pagefault when channel is disabled during interrupt ...

Merge branch 'topic/stm' into for-linus

2018-04-10T03:25:58+00:00

Merge branch 'topic/renesas' into for-linus

2018-04-10T03:25:52+00:00

Merge branch 'topic/qcom' into for-linus

2018-04-10T03:25:37+00:00

Merge branch 'topic/pl330' into for-linus

2018-04-10T03:25:30+00:00

Merge branch 'topic/mtek' into for-linus

2018-04-10T03:25:26+00:00