kernel/linux.git/drivers/dma/sh, branch v6.6.39

dmaengine: shdma: increase size of 'dev_id'

2024-03-01T12:34:48+00:00

[ Upstream commit 404290240827c3bb5c4e195174a8854eef2f89ac ] We seem to have hit warnings of 'output may be truncated' which is fixed by increasing the size of 'dev_id' drivers/dma/sh/shdmac.c: In function ‘sh_dmae_probe’: drivers/dma/sh/shdmac.c:541:34: error: ‘%d’ directive output may be truncated writing between 1 and 10 bytes into a region of size 9 [-Werror=format-truncation=] 541 | "sh-dmae%d.%d", pdev->id, id); | ^~ In function ‘sh_dmae_chan_probe’, inlined from ‘sh_dmae_probe’ at drivers/dma/sh/shdmac.c:845:9: drivers/dma/sh/shdmac.c:541:26: note: directive argument in the range [0, 2147483647] 541 | "sh-dmae%d.%d", pdev->id, id); | ^~~~~~~~~~~~~~ drivers/dma/sh/shdmac.c:541:26: note: directive argument in the range [0, 19] drivers/dma/sh/shdmac.c:540:17: note: ‘snprintf’ output between 11 and 21 bytes into a destination of size 16 540 | snprintf(sh_chan->dev_id, sizeof(sh_chan->dev_id), | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 541 | "sh-dmae%d.%d", pdev->id, id); | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Signed-off-by: Vinod Koul Signed-off-by: Sasha Levin

dmaengine: Explicitly include correct DT includes

2023-08-01T18:21:27+00:00

The DT of_device.h and of_platform.h date back to the separate of_platform_bus_type before it as merged into the regular platform bus. As part of that merge prepping Arm DT support 13 years ago, they "temporarily" include each other. They also include platform_device.h and of.h. As a result, there's a pretty much random mix of those include files used throughout the tree. In order to detangle these headers and replace the implicit includes with struct declarations, users need to explicitly include the correct includes. Signed-off-by: Rob Herring Link: https://lore.kernel.org/r/20230718143138.1066177-1-robh@kernel.org Signed-off-by: Vinod Koul

dmaengine: shdmac: Convert to devm_platform_ioremap_resource()

2023-07-12T16:54:00+00:00

Use devm_platform_ioremap_resource() to simplify code. Signed-off-by: Yangtao Li Link: https://lore.kernel.org/r/20230705081856.13734-4-frank.li@vivo.com Signed-off-by: Vinod Koul

dmaengine: sh: rz-dmac: Fix destination and source data size setting

2023-07-12T16:54:00+00:00

Before setting DDS and SDS values, we need to clear its value first otherwise, we get incorrect results when we change/update the DMA bus width several times due to the 'OR' expression. Fixes: 5000d37042a6 ("dmaengine: sh: Add DMAC driver for RZ/G2L SoC") Cc: stable@kernel.org Signed-off-by: Hien Huynh Signed-off-by: Biju Das Reviewed-by: Geert Uytterhoeven Link: https://lore.kernel.org/r/20230706112150.198941-3-biju.das.jz@bp.renesas.com Signed-off-by: Vinod Koul

dmaengine: sh: rz-dmac: Improve cleanup order in probe()/remove()

2023-07-12T16:54:00+00:00

We usually do cleanup in reverse order of init. Currently, in the case of error, this is not followed in rz_dmac_probe(), and similar case for remove(). This patch improves error handling in probe() and cleanup in reverse order of init in the remove(). Reported-by: Pavel Machek Signed-off-by: Biju Das Reviewed-by: Geert Uytterhoeven Reviewed-by: Pavel Machek Link: https://lore.kernel.org/r/20230706112150.198941-2-biju.das.jz@bp.renesas.com Signed-off-by: Vinod Koul

Merge tag 'dmaengine-6.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/dmaengine

2023-05-03T18:11:56+00:00

Pull dmaengine updates from Vinod Koul: "New support: - Apple admac t8112 device support - StarFive JH7110 DMA controller Updates: - Big pile of idxd updates to support IAA 2.0 device capabilities, DSA 2.0 Event Log and completion record faulting features and new DSA operations - at_xdmac supend & resume updates and driver code cleanup - k3-udma supend & resume support - k3-psil thread support for J784s4" * tag 'dmaengine-6.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/dmaengine: (57 commits) dmaengine: idxd: add per wq PRS disable dmaengine: idxd: add pid to exported sysfs attribute for opened file dmaengine: idxd: expose fault counters to sysfs dmaengine: idxd: add a device to represent the file opened dmaengine: idxd: add per file user counters for completion record faults dmaengine: idxd: process batch descriptor completion record faults dmaengine: idxd: add descs_completed field for completion record dmaengine: idxd: process user page faults for completion record dmaengine: idxd: add idxd_copy_cr() to copy user completion record during page fault handling dmaengine: idxd: create kmem cache for event log fault items dmaengine: idxd: add per DSA wq workqueue for processing cr faults dmanegine: idxd: add debugfs for event log dump dmaengine: idxd: add interrupt handling for event log dmaengine: idxd: setup event log configuration dmaengine: idxd: add event log size sysfs attribute dmaengine: idxd: make misc interrupt one shot dt-bindings: dma: snps,dw-axi-dmac: constrain the items of resets for JH7110 dma dt-bindings: dma: Drop unneeded quotes dmaengine: at_xdmac: align declaration of ret with the rest of variables dmaengine: at_xdmac: add a warning message regarding for unpaused channels ...

dmaengine: remove MODULE_LICENSE in non-modules

2023-04-13T20:13:51+00:00

Since commit 8b41fc4454e ("kbuild: create modules.builtin without Makefile.modbuiltin or tristate.conf"), MODULE_LICENSE declarations are used to identify modules. As a consequence, uses of the macro in non-modules will cause modprobe to misidentify their containing object file as a module when it is not (false positives), and modprobe might succeed rather than failing with a suitable error message. So remove it in the files in this commit, none of which can be built as modules. Signed-off-by: Nick Alcock Suggested-by: Luis Chamberlain Cc: Luis Chamberlain Cc: linux-modules@vger.kernel.org Cc: linux-kernel@vger.kernel.org Cc: Hitomi Hasegawa Cc: Vinod Koul Cc: dmaengine@vger.kernel.org Signed-off-by: Luis Chamberlain

dmaengine: sh: rz-dmac: Remove unused rz_dmac_chan.*_word_size

2023-03-31T12:00:40+00:00

The src_word_size and dst_word_size members of the rz_dmac_chan structure were never used, so they can be removed. Signed-off-by: Geert Uytterhoeven Reviewed-by: Biju Das Link: https://lore.kernel.org/r/021bdf56f1716276a55bcfb1ea81bba5f1d42b3d.1679910274.git.geert+renesas@glider.be Signed-off-by: Vinod Koul

dmaengine: sh: rz-dmac: Add reset support

2023-03-17T17:26:41+00:00

Add reset support for DMAC module found on RZ/G2L alike SoCs. For booting the board, reset release of the DMAC module is required otherwise we don't get GIC interrupts. Currently the reset release was done by the bootloader now move this to the driver instead. Signed-off-by: Biju Das Reviewed-by: Lad Prabhakar Link: https://lore.kernel.org/r/20230315064501.21491-1-biju.das.jz@bp.renesas.com Signed-off-by: Vinod Koul

dmaengine: drivers: Use devm_platform_ioremap_resource()

2023-01-18T16:46:47+00:00

platform_get_resource() and devm_ioremap_resource() are wrapped up in the devm_platform_ioremap_resource() helper. Use the helper and get rid of the local variable for struct resource *. We now have a function call less. Signed-off-by: Tudor Ambarus Acked-by: Jernej Skrabec Acked-by: Peter Ujfalusi Link: https://lore.kernel.org/r/20221110152528.7821-1-tudor.ambarus@microchip.com Signed-off-by: Vinod Koul