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linux/drivers/dma/owl-dma.c

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dmaengine: Add Actions Semi Owl family S900 DMA driver Add Actions Semi Owl family S900 DMA driver. Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Signed-off-by: Vinod Koul <vkoul@kernel.org>
2018-07-26 10:36:57 +05:30
dmaengine: Explicitly include correct DT includes 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 <robh@kernel.org> Link: https://lore.kernel.org/r/20230718143138.1066177-1-robh@kernel.org Signed-off-by: Vinod Koul <vkoul@kernel.org>
2023-07-18 08:31:35 -06:00
dmaengine: owl: Add Slave and Cyclic mode support for Actions Semi Owl S900 SoC Add Slave and Cyclic mode support for Actions Semi Owl S900 SoC. The slave mode supports bus width of 4 bytes common for all peripherals and 1 byte specific for UART. The cyclic mode supports only block mode transfer. Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Signed-off-by: Vinod Koul <vkoul@kernel.org>
2018-09-29 13:16:36 +05:30
dmaengine: Explicitly include correct DT includes 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 <robh@kernel.org> Link: https://lore.kernel.org/r/20230718143138.1066177-1-robh@kernel.org Signed-off-by: Vinod Koul <vkoul@kernel.org>
2023-07-18 08:31:35 -06:00
dmaengine: Add Actions Semi Owl family S900 DMA driver Add Actions Semi Owl family S900 DMA driver. Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Signed-off-by: Vinod Koul <vkoul@kernel.org>
2018-07-26 10:36:57 +05:30
dmaengine: Actions: get rid of bit fields from dma descriptor At the moment, Driver uses bit fields to describe registers of the DMA descriptor structure that makes it less portable and maintainable, and Andre suugested(and even sketched important bits for it) to make use of array to describe this DMA descriptors instead. It gives the flexibility while extending support for other platform such as Actions S700. This commit removes the "owl_dma_lli_hw" (that includes bit-fields) and uses array to describe DMA descriptor. Suggested-by: Andre Przywara <andre.przywara@arm.com> Signed-off-by: Amit Singh Tomar <amittomer25@gmail.com> Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Link: https://lore.kernel.org/r/1595180527-11320-3-git-send-email-amittomer25@gmail.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-07-19 23:11:59 +05:30
dmaengine: Add Actions Semi Owl family S900 DMA driver Add Actions Semi Owl family S900 DMA driver. Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Signed-off-by: Vinod Koul <vkoul@kernel.org>
2018-07-26 10:36:57 +05:30
dmaengine: owl-dma: fix kernel-doc style for enum Driver doesn't use keyword enum for enum owl_dmadesc_offsets resulting in warning: drivers/dma/owl-dma.c:139: warning: cannot understand function prototype: 'enum owl_dmadesc_offsets ' So add the keyword to fix it and also add documentation for missing OWL_DMADESC_SIZE Signed-off-by: Vinod Koul <vkoul@kernel.org> Link: https://lore.kernel.org/r/20201007083113.567559-6-vkoul@kernel.org Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-10-07 14:01:13 +05:30
dmaengine: Actions: get rid of bit fields from dma descriptor At the moment, Driver uses bit fields to describe registers of the DMA descriptor structure that makes it less portable and maintainable, and Andre suugested(and even sketched important bits for it) to make use of array to describe this DMA descriptors instead. It gives the flexibility while extending support for other platform such as Actions S700. This commit removes the "owl_dma_lli_hw" (that includes bit-fields) and uses array to describe DMA descriptor. Suggested-by: Andre Przywara <andre.przywara@arm.com> Signed-off-by: Amit Singh Tomar <amittomer25@gmail.com> Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Link: https://lore.kernel.org/r/1595180527-11320-3-git-send-email-amittomer25@gmail.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-07-19 23:11:59 +05:30
dmaengine: owl-dma: fix kernel-doc style for enum Driver doesn't use keyword enum for enum owl_dmadesc_offsets resulting in warning: drivers/dma/owl-dma.c:139: warning: cannot understand function prototype: 'enum owl_dmadesc_offsets ' So add the keyword to fix it and also add documentation for missing OWL_DMADESC_SIZE Signed-off-by: Vinod Koul <vkoul@kernel.org> Link: https://lore.kernel.org/r/20201007083113.567559-6-vkoul@kernel.org Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-10-07 14:01:13 +05:30
dmaengine: Add Actions Semi Owl family S900 DMA driver Add Actions Semi Owl family S900 DMA driver. Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Signed-off-by: Vinod Koul <vkoul@kernel.org>
2018-07-26 10:36:57 +05:30
dmaengine: Actions: get rid of bit fields from dma descriptor At the moment, Driver uses bit fields to describe registers of the DMA descriptor structure that makes it less portable and maintainable, and Andre suugested(and even sketched important bits for it) to make use of array to describe this DMA descriptors instead. It gives the flexibility while extending support for other platform such as Actions S700. This commit removes the "owl_dma_lli_hw" (that includes bit-fields) and uses array to describe DMA descriptor. Suggested-by: Andre Przywara <andre.przywara@arm.com> Signed-off-by: Amit Singh Tomar <amittomer25@gmail.com> Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Link: https://lore.kernel.org/r/1595180527-11320-3-git-send-email-amittomer25@gmail.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-07-19 23:11:59 +05:30
dmaengine: Add Actions Semi Owl family S900 DMA driver Add Actions Semi Owl family S900 DMA driver. Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Signed-off-by: Vinod Koul <vkoul@kernel.org>
2018-07-26 10:36:57 +05:30
dmaengine: Actions: Add support for S700 DMA engine DMA controller present on S700 SoC is compatible with the one on S900 (as most of registers are same), but it has different DMA descriptor structure where registers "fcnt" and "ctrlb" uses different encoding. For instance, on S900 "fcnt" starts at offset 0x0c and uses upper 12 bits whereas on S700, it starts at offset 0x1c and uses lower 12 bits. This commit adds support for DMA controller present on S700. Signed-off-by: Amit Singh Tomar <amittomer25@gmail.com> Link: https://lore.kernel.org/r/1595180527-11320-4-git-send-email-amittomer25@gmail.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-07-19 23:12:00 +05:30
dmaengine: Add Actions Semi Owl family S900 DMA driver Add Actions Semi Owl family S900 DMA driver. Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Signed-off-by: Vinod Koul <vkoul@kernel.org>
2018-07-26 10:36:57 +05:30
dmaengine: Actions: get rid of bit fields from dma descriptor At the moment, Driver uses bit fields to describe registers of the DMA descriptor structure that makes it less portable and maintainable, and Andre suugested(and even sketched important bits for it) to make use of array to describe this DMA descriptors instead. It gives the flexibility while extending support for other platform such as Actions S700. This commit removes the "owl_dma_lli_hw" (that includes bit-fields) and uses array to describe DMA descriptor. Suggested-by: Andre Przywara <andre.przywara@arm.com> Signed-off-by: Amit Singh Tomar <amittomer25@gmail.com> Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Link: https://lore.kernel.org/r/1595180527-11320-3-git-send-email-amittomer25@gmail.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-07-19 23:11:59 +05:30
dmaengine: Add Actions Semi Owl family S900 DMA driver Add Actions Semi Owl family S900 DMA driver. Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Signed-off-by: Vinod Koul <vkoul@kernel.org>
2018-07-26 10:36:57 +05:30
dmaengine: owl: Fix warnings generated during build Following warnings are generated when compiled with W=1, drivers/dma/owl-dma.c:170: warning: Function parameter or member 'cyclic' not described in 'owl_dma_txd' drivers/dma/owl-dma.c:198: warning: Function parameter or member 'cfg' not described in 'owl_dma_vchan' drivers/dma/owl-dma.c:198: warning: Function parameter or member 'drq' not described in 'owl_dma_vchan' drivers/dma/owl-dma.c:225: warning: Function parameter or member 'irq' not described in 'owl_dma' Fix this by adding comments for relevant struct members to appear in kernel-doc. Fixes: d64e1b3f5cce ("dmaengine: owl: Add Slave and Cyclic mode support for Actions Semi Owl S900 SoC") Reported-by: Vinod Koul <vinod.koul@linaro.org> Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Reviewed-by: Andreas Färber <afaerber@suse.de> Signed-off-by: Vinod Koul <vkoul@kernel.org>
2018-10-08 22:46:31 +05:30
dmaengine: Add Actions Semi Owl family S900 DMA driver Add Actions Semi Owl family S900 DMA driver. Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Signed-off-by: Vinod Koul <vkoul@kernel.org>
2018-07-26 10:36:57 +05:30
dmaengine: owl: Add Slave and Cyclic mode support for Actions Semi Owl S900 SoC Add Slave and Cyclic mode support for Actions Semi Owl S900 SoC. The slave mode supports bus width of 4 bytes common for all peripherals and 1 byte specific for UART. The cyclic mode supports only block mode transfer. Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Signed-off-by: Vinod Koul <vkoul@kernel.org>
2018-09-29 13:16:36 +05:30
dmaengine: Add Actions Semi Owl family S900 DMA driver Add Actions Semi Owl family S900 DMA driver. Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Signed-off-by: Vinod Koul <vkoul@kernel.org>
2018-07-26 10:36:57 +05:30
dmaengine: owl-dma: Modify mismatched function name No functional modification involved. drivers/dma/owl-dma.c:208: warning: expecting prototype for struct owl_dma_pchan. Prototype was for struct owl_dma_vchan instead HDRTEST usr/include/sound/asequencer.h Fixes: 47e20577c24d ("dmaengine: Add Actions Semi Owl family S900 DMA driver") Signed-off-by: Zhang Jianhua <chris.zjh@huawei.com> Reviewed-by: Randy Dunlap <rdunlap@infradead.org> Link: https://lore.kernel.org/r/20230722153244.2086949-1-chris.zjh@huawei.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2023-07-22 15:32:44 +00:00
dmaengine: owl: fix typo in comment Spelling mistake (triple letters) in comment. Detected with the help of Coccinelle. Signed-off-by: Julia Lawall <Julia.Lawall@inria.fr> Link: https://lore.kernel.org/r/20220521111145.81697-7-Julia.Lawall@inria.fr Signed-off-by: Vinod Koul <vkoul@kernel.org>
2022-05-21 13:10:17 +02:00
dmaengine: Add Actions Semi Owl family S900 DMA driver Add Actions Semi Owl family S900 DMA driver. Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Signed-off-by: Vinod Koul <vkoul@kernel.org>
2018-07-26 10:36:57 +05:30
dmaengine: owl: Fix warnings generated during build Following warnings are generated when compiled with W=1, drivers/dma/owl-dma.c:170: warning: Function parameter or member 'cyclic' not described in 'owl_dma_txd' drivers/dma/owl-dma.c:198: warning: Function parameter or member 'cfg' not described in 'owl_dma_vchan' drivers/dma/owl-dma.c:198: warning: Function parameter or member 'drq' not described in 'owl_dma_vchan' drivers/dma/owl-dma.c:225: warning: Function parameter or member 'irq' not described in 'owl_dma' Fix this by adding comments for relevant struct members to appear in kernel-doc. Fixes: d64e1b3f5cce ("dmaengine: owl: Add Slave and Cyclic mode support for Actions Semi Owl S900 SoC") Reported-by: Vinod Koul <vinod.koul@linaro.org> Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Reviewed-by: Andreas Färber <afaerber@suse.de> Signed-off-by: Vinod Koul <vkoul@kernel.org>
2018-10-08 22:46:31 +05:30
dmaengine: Add Actions Semi Owl family S900 DMA driver Add Actions Semi Owl family S900 DMA driver. Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Signed-off-by: Vinod Koul <vkoul@kernel.org>
2018-07-26 10:36:57 +05:30
dmaengine: owl: Add Slave and Cyclic mode support for Actions Semi Owl S900 SoC Add Slave and Cyclic mode support for Actions Semi Owl S900 SoC. The slave mode supports bus width of 4 bytes common for all peripherals and 1 byte specific for UART. The cyclic mode supports only block mode transfer. Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Signed-off-by: Vinod Koul <vkoul@kernel.org>
2018-09-29 13:16:36 +05:30
dmaengine: Add Actions Semi Owl family S900 DMA driver Add Actions Semi Owl family S900 DMA driver. Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Signed-off-by: Vinod Koul <vkoul@kernel.org>
2018-07-26 10:36:57 +05:30
dmaengine: owl: Fix warnings generated during build Following warnings are generated when compiled with W=1, drivers/dma/owl-dma.c:170: warning: Function parameter or member 'cyclic' not described in 'owl_dma_txd' drivers/dma/owl-dma.c:198: warning: Function parameter or member 'cfg' not described in 'owl_dma_vchan' drivers/dma/owl-dma.c:198: warning: Function parameter or member 'drq' not described in 'owl_dma_vchan' drivers/dma/owl-dma.c:225: warning: Function parameter or member 'irq' not described in 'owl_dma' Fix this by adding comments for relevant struct members to appear in kernel-doc. Fixes: d64e1b3f5cce ("dmaengine: owl: Add Slave and Cyclic mode support for Actions Semi Owl S900 SoC") Reported-by: Vinod Koul <vinod.koul@linaro.org> Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Reviewed-by: Andreas Färber <afaerber@suse.de> Signed-off-by: Vinod Koul <vkoul@kernel.org>
2018-10-08 22:46:31 +05:30
dmaengine: Add Actions Semi Owl family S900 DMA driver Add Actions Semi Owl family S900 DMA driver. Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Signed-off-by: Vinod Koul <vkoul@kernel.org>
2018-07-26 10:36:57 +05:30
dmaengine: Actions: Add support for S700 DMA engine DMA controller present on S700 SoC is compatible with the one on S900 (as most of registers are same), but it has different DMA descriptor structure where registers "fcnt" and "ctrlb" uses different encoding. For instance, on S900 "fcnt" starts at offset 0x0c and uses upper 12 bits whereas on S700, it starts at offset 0x1c and uses lower 12 bits. This commit adds support for DMA controller present on S700. Signed-off-by: Amit Singh Tomar <amittomer25@gmail.com> Link: https://lore.kernel.org/r/1595180527-11320-4-git-send-email-amittomer25@gmail.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-07-19 23:12:00 +05:30
dmaengine: Add Actions Semi Owl family S900 DMA driver Add Actions Semi Owl family S900 DMA driver. Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Signed-off-by: Vinod Koul <vkoul@kernel.org>
2018-07-26 10:36:57 +05:30
dmaengine: Actions: Add support for S700 DMA engine DMA controller present on S700 SoC is compatible with the one on S900 (as most of registers are same), but it has different DMA descriptor structure where registers "fcnt" and "ctrlb" uses different encoding. For instance, on S900 "fcnt" starts at offset 0x0c and uses upper 12 bits whereas on S700, it starts at offset 0x1c and uses lower 12 bits. This commit adds support for DMA controller present on S700. Signed-off-by: Amit Singh Tomar <amittomer25@gmail.com> Link: https://lore.kernel.org/r/1595180527-11320-4-git-send-email-amittomer25@gmail.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-07-19 23:12:00 +05:30
dmaengine: Add Actions Semi Owl family S900 DMA driver Add Actions Semi Owl family S900 DMA driver. Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Signed-off-by: Vinod Koul <vkoul@kernel.org>
2018-07-26 10:36:57 +05:30
dmaengine: owl: fix register access functions When building with 'make W=1', clang notices that the computed register values are never actually written back but instead the wrong variable is set: drivers/dma/owl-dma.c:244:6: error: variable 'regval' set but not used [-Werror,-Wunused-but-set-variable] 244 | u32 regval; | ^ drivers/dma/owl-dma.c:268:6: error: variable 'regval' set but not used [-Werror,-Wunused-but-set-variable] 268 | u32 regval; | ^ Change these to what was most likely intended. Fixes: 47e20577c24d ("dmaengine: Add Actions Semi Owl family S900 DMA driver") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Peter Korsgaard <peter@korsgaard.com> Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Link: https://lore.kernel.org/r/20240322132116.906475-1-arnd@kernel.org Signed-off-by: Vinod Koul <vkoul@kernel.org>
2024-03-22 14:21:07 +01:00
dmaengine: Add Actions Semi Owl family S900 DMA driver Add Actions Semi Owl family S900 DMA driver. Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Signed-off-by: Vinod Koul <vkoul@kernel.org>
2018-07-26 10:36:57 +05:30
dmaengine: owl: fix register access functions When building with 'make W=1', clang notices that the computed register values are never actually written back but instead the wrong variable is set: drivers/dma/owl-dma.c:244:6: error: variable 'regval' set but not used [-Werror,-Wunused-but-set-variable] 244 | u32 regval; | ^ drivers/dma/owl-dma.c:268:6: error: variable 'regval' set but not used [-Werror,-Wunused-but-set-variable] 268 | u32 regval; | ^ Change these to what was most likely intended. Fixes: 47e20577c24d ("dmaengine: Add Actions Semi Owl family S900 DMA driver") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Peter Korsgaard <peter@korsgaard.com> Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Link: https://lore.kernel.org/r/20240322132116.906475-1-arnd@kernel.org Signed-off-by: Vinod Koul <vkoul@kernel.org>
2024-03-22 14:21:07 +01:00
dmaengine: Add Actions Semi Owl family S900 DMA driver Add Actions Semi Owl family S900 DMA driver. Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Signed-off-by: Vinod Koul <vkoul@kernel.org>
2018-07-26 10:36:57 +05:30
dmaengine: Actions: Add support for S700 DMA engine DMA controller present on S700 SoC is compatible with the one on S900 (as most of registers are same), but it has different DMA descriptor structure where registers "fcnt" and "ctrlb" uses different encoding. For instance, on S900 "fcnt" starts at offset 0x0c and uses upper 12 bits whereas on S700, it starts at offset 0x1c and uses lower 12 bits. This commit adds support for DMA controller present on S700. Signed-off-by: Amit Singh Tomar <amittomer25@gmail.com> Link: https://lore.kernel.org/r/1595180527-11320-4-git-send-email-amittomer25@gmail.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-07-19 23:12:00 +05:30
dmaengine: Add Actions Semi Owl family S900 DMA driver Add Actions Semi Owl family S900 DMA driver. Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Signed-off-by: Vinod Koul <vkoul@kernel.org>
2018-07-26 10:36:57 +05:30
dmaengine: Actions: get rid of bit fields from dma descriptor At the moment, Driver uses bit fields to describe registers of the DMA descriptor structure that makes it less portable and maintainable, and Andre suugested(and even sketched important bits for it) to make use of array to describe this DMA descriptors instead. It gives the flexibility while extending support for other platform such as Actions S700. This commit removes the "owl_dma_lli_hw" (that includes bit-fields) and uses array to describe DMA descriptor. Suggested-by: Andre Przywara <andre.przywara@arm.com> Signed-off-by: Amit Singh Tomar <amittomer25@gmail.com> Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Link: https://lore.kernel.org/r/1595180527-11320-3-git-send-email-amittomer25@gmail.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-07-19 23:11:59 +05:30
dmaengine: Add Actions Semi Owl family S900 DMA driver Add Actions Semi Owl family S900 DMA driver. Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Signed-off-by: Vinod Koul <vkoul@kernel.org>
2018-07-26 10:36:57 +05:30
dmaengine: owl: Add Slave and Cyclic mode support for Actions Semi Owl S900 SoC Add Slave and Cyclic mode support for Actions Semi Owl S900 SoC. The slave mode supports bus width of 4 bytes common for all peripherals and 1 byte specific for UART. The cyclic mode supports only block mode transfer. Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Signed-off-by: Vinod Koul <vkoul@kernel.org>
2018-09-29 13:16:36 +05:30
dmaengine: Add Actions Semi Owl family S900 DMA driver Add Actions Semi Owl family S900 DMA driver. Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Signed-off-by: Vinod Koul <vkoul@kernel.org>
2018-07-26 10:36:57 +05:30
dmaengine: owl: Add Slave and Cyclic mode support for Actions Semi Owl S900 SoC Add Slave and Cyclic mode support for Actions Semi Owl S900 SoC. The slave mode supports bus width of 4 bytes common for all peripherals and 1 byte specific for UART. The cyclic mode supports only block mode transfer. Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Signed-off-by: Vinod Koul <vkoul@kernel.org>
2018-09-29 13:16:36 +05:30
dmaengine: Add Actions Semi Owl family S900 DMA driver Add Actions Semi Owl family S900 DMA driver. Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Signed-off-by: Vinod Koul <vkoul@kernel.org>
2018-07-26 10:36:57 +05:30
dmaengine: Actions: get rid of bit fields from dma descriptor At the moment, Driver uses bit fields to describe registers of the DMA descriptor structure that makes it less portable and maintainable, and Andre suugested(and even sketched important bits for it) to make use of array to describe this DMA descriptors instead. It gives the flexibility while extending support for other platform such as Actions S700. This commit removes the "owl_dma_lli_hw" (that includes bit-fields) and uses array to describe DMA descriptor. Suggested-by: Andre Przywara <andre.przywara@arm.com> Signed-off-by: Amit Singh Tomar <amittomer25@gmail.com> Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Link: https://lore.kernel.org/r/1595180527-11320-3-git-send-email-amittomer25@gmail.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-07-19 23:11:59 +05:30
dmaengine: Add Actions Semi Owl family S900 DMA driver Add Actions Semi Owl family S900 DMA driver. Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Signed-off-by: Vinod Koul <vkoul@kernel.org>
2018-07-26 10:36:57 +05:30
dmaengine: owl: Add Slave and Cyclic mode support for Actions Semi Owl S900 SoC Add Slave and Cyclic mode support for Actions Semi Owl S900 SoC. The slave mode supports bus width of 4 bytes common for all peripherals and 1 byte specific for UART. The cyclic mode supports only block mode transfer. Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Signed-off-by: Vinod Koul <vkoul@kernel.org>
2018-09-29 13:16:36 +05:30
dmaengine: Add Actions Semi Owl family S900 DMA driver Add Actions Semi Owl family S900 DMA driver. Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Signed-off-by: Vinod Koul <vkoul@kernel.org>
2018-07-26 10:36:57 +05:30
dmaengine: Actions: Add support for S700 DMA engine DMA controller present on S700 SoC is compatible with the one on S900 (as most of registers are same), but it has different DMA descriptor structure where registers "fcnt" and "ctrlb" uses different encoding. For instance, on S900 "fcnt" starts at offset 0x0c and uses upper 12 bits whereas on S700, it starts at offset 0x1c and uses lower 12 bits. This commit adds support for DMA controller present on S700. Signed-off-by: Amit Singh Tomar <amittomer25@gmail.com> Link: https://lore.kernel.org/r/1595180527-11320-4-git-send-email-amittomer25@gmail.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-07-19 23:12:00 +05:30
dmaengine: Actions: get rid of bit fields from dma descriptor At the moment, Driver uses bit fields to describe registers of the DMA descriptor structure that makes it less portable and maintainable, and Andre suugested(and even sketched important bits for it) to make use of array to describe this DMA descriptors instead. It gives the flexibility while extending support for other platform such as Actions S700. This commit removes the "owl_dma_lli_hw" (that includes bit-fields) and uses array to describe DMA descriptor. Suggested-by: Andre Przywara <andre.przywara@arm.com> Signed-off-by: Amit Singh Tomar <amittomer25@gmail.com> Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Link: https://lore.kernel.org/r/1595180527-11320-3-git-send-email-amittomer25@gmail.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-07-19 23:11:59 +05:30
dmaengine: Add Actions Semi Owl family S900 DMA driver Add Actions Semi Owl family S900 DMA driver. Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Signed-off-by: Vinod Koul <vkoul@kernel.org>
2018-07-26 10:36:57 +05:30
dmaengine: owl: Add Slave and Cyclic mode support for Actions Semi Owl S900 SoC Add Slave and Cyclic mode support for Actions Semi Owl S900 SoC. The slave mode supports bus width of 4 bytes common for all peripherals and 1 byte specific for UART. The cyclic mode supports only block mode transfer. Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Signed-off-by: Vinod Koul <vkoul@kernel.org>
2018-09-29 13:16:36 +05:30
dmaengine: Add Actions Semi Owl family S900 DMA driver Add Actions Semi Owl family S900 DMA driver. Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Signed-off-by: Vinod Koul <vkoul@kernel.org>
2018-07-26 10:36:57 +05:30
dmaengine: Actions: get rid of bit fields from dma descriptor At the moment, Driver uses bit fields to describe registers of the DMA descriptor structure that makes it less portable and maintainable, and Andre suugested(and even sketched important bits for it) to make use of array to describe this DMA descriptors instead. It gives the flexibility while extending support for other platform such as Actions S700. This commit removes the "owl_dma_lli_hw" (that includes bit-fields) and uses array to describe DMA descriptor. Suggested-by: Andre Przywara <andre.przywara@arm.com> Signed-off-by: Amit Singh Tomar <amittomer25@gmail.com> Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Link: https://lore.kernel.org/r/1595180527-11320-3-git-send-email-amittomer25@gmail.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-07-19 23:11:59 +05:30
dmaengine: Add Actions Semi Owl family S900 DMA driver Add Actions Semi Owl family S900 DMA driver. Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Signed-off-by: Vinod Koul <vkoul@kernel.org>
2018-07-26 10:36:57 +05:30
dmaengine: owl: Add Slave and Cyclic mode support for Actions Semi Owl S900 SoC Add Slave and Cyclic mode support for Actions Semi Owl S900 SoC. The slave mode supports bus width of 4 bytes common for all peripherals and 1 byte specific for UART. The cyclic mode supports only block mode transfer. Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Signed-off-by: Vinod Koul <vkoul@kernel.org>
2018-09-29 13:16:36 +05:30
dmaengine: Actions: get rid of bit fields from dma descriptor At the moment, Driver uses bit fields to describe registers of the DMA descriptor structure that makes it less portable and maintainable, and Andre suugested(and even sketched important bits for it) to make use of array to describe this DMA descriptors instead. It gives the flexibility while extending support for other platform such as Actions S700. This commit removes the "owl_dma_lli_hw" (that includes bit-fields) and uses array to describe DMA descriptor. Suggested-by: Andre Przywara <andre.przywara@arm.com> Signed-off-by: Amit Singh Tomar <amittomer25@gmail.com> Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Link: https://lore.kernel.org/r/1595180527-11320-3-git-send-email-amittomer25@gmail.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-07-19 23:11:59 +05:30
dmaengine: owl: Add Slave and Cyclic mode support for Actions Semi Owl S900 SoC Add Slave and Cyclic mode support for Actions Semi Owl S900 SoC. The slave mode supports bus width of 4 bytes common for all peripherals and 1 byte specific for UART. The cyclic mode supports only block mode transfer. Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Signed-off-by: Vinod Koul <vkoul@kernel.org>
2018-09-29 13:16:36 +05:30
dmaengine: Actions: get rid of bit fields from dma descriptor At the moment, Driver uses bit fields to describe registers of the DMA descriptor structure that makes it less portable and maintainable, and Andre suugested(and even sketched important bits for it) to make use of array to describe this DMA descriptors instead. It gives the flexibility while extending support for other platform such as Actions S700. This commit removes the "owl_dma_lli_hw" (that includes bit-fields) and uses array to describe DMA descriptor. Suggested-by: Andre Przywara <andre.przywara@arm.com> Signed-off-by: Amit Singh Tomar <amittomer25@gmail.com> Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Link: https://lore.kernel.org/r/1595180527-11320-3-git-send-email-amittomer25@gmail.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-07-19 23:11:59 +05:30
dmaengine: Actions: Add support for S700 DMA engine DMA controller present on S700 SoC is compatible with the one on S900 (as most of registers are same), but it has different DMA descriptor structure where registers "fcnt" and "ctrlb" uses different encoding. For instance, on S900 "fcnt" starts at offset 0x0c and uses upper 12 bits whereas on S700, it starts at offset 0x1c and uses lower 12 bits. This commit adds support for DMA controller present on S700. Signed-off-by: Amit Singh Tomar <amittomer25@gmail.com> Link: https://lore.kernel.org/r/1595180527-11320-4-git-send-email-amittomer25@gmail.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-07-19 23:12:00 +05:30
dmaengine: Add Actions Semi Owl family S900 DMA driver Add Actions Semi Owl family S900 DMA driver. Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Signed-off-by: Vinod Koul <vkoul@kernel.org>
2018-07-26 10:36:57 +05:30
dmaengine: owl: Use correct lock in owl_dma_get_pchan() When the kernel is built with lockdep support and the owl-dma driver is used, the following message is shown: [ 2.496939] INFO: trying to register non-static key. [ 2.501889] the code is fine but needs lockdep annotation. [ 2.507357] turning off the locking correctness validator. [ 2.512834] CPU: 0 PID: 12 Comm: kworker/0:1 Not tainted 5.6.3+ #15 [ 2.519084] Hardware name: Generic DT based system [ 2.523878] Workqueue: events_freezable mmc_rescan [ 2.528681] [<801127f0>] (unwind_backtrace) from [<8010da58>] (show_stack+0x10/0x14) [ 2.536420] [<8010da58>] (show_stack) from [<8080fbe8>] (dump_stack+0xb4/0xe0) [ 2.543645] [<8080fbe8>] (dump_stack) from [<8017efa4>] (register_lock_class+0x6f0/0x718) [ 2.551816] [<8017efa4>] (register_lock_class) from [<8017b7d0>] (__lock_acquire+0x78/0x25f0) [ 2.560330] [<8017b7d0>] (__lock_acquire) from [<8017e5e4>] (lock_acquire+0xd8/0x1f4) [ 2.568159] [<8017e5e4>] (lock_acquire) from [<80831fb0>] (_raw_spin_lock_irqsave+0x3c/0x50) [ 2.576589] [<80831fb0>] (_raw_spin_lock_irqsave) from [<8051b5fc>] (owl_dma_issue_pending+0xbc/0x120) [ 2.585884] [<8051b5fc>] (owl_dma_issue_pending) from [<80668cbc>] (owl_mmc_request+0x1b0/0x390) [ 2.594655] [<80668cbc>] (owl_mmc_request) from [<80650ce0>] (mmc_start_request+0x94/0xbc) [ 2.602906] [<80650ce0>] (mmc_start_request) from [<80650ec0>] (mmc_wait_for_req+0x64/0xd0) [ 2.611245] [<80650ec0>] (mmc_wait_for_req) from [<8065aa10>] (mmc_app_send_scr+0x10c/0x144) [ 2.619669] [<8065aa10>] (mmc_app_send_scr) from [<80659b3c>] (mmc_sd_setup_card+0x4c/0x318) [ 2.628092] [<80659b3c>] (mmc_sd_setup_card) from [<80659f0c>] (mmc_sd_init_card+0x104/0x430) [ 2.636601] [<80659f0c>] (mmc_sd_init_card) from [<8065a3e0>] (mmc_attach_sd+0xcc/0x16c) [ 2.644678] [<8065a3e0>] (mmc_attach_sd) from [<8065301c>] (mmc_rescan+0x3ac/0x40c) [ 2.652332] [<8065301c>] (mmc_rescan) from [<80143244>] (process_one_work+0x2d8/0x780) [ 2.660239] [<80143244>] (process_one_work) from [<80143730>] (worker_thread+0x44/0x598) [ 2.668323] [<80143730>] (worker_thread) from [<8014b5f8>] (kthread+0x148/0x150) [ 2.675708] [<8014b5f8>] (kthread) from [<801010b4>] (ret_from_fork+0x14/0x20) [ 2.682912] Exception stack(0xee8fdfb0 to 0xee8fdff8) [ 2.687954] dfa0: 00000000 00000000 00000000 00000000 [ 2.696118] dfc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 [ 2.704277] dfe0: 00000000 00000000 00000000 00000000 00000013 00000000 The obvious fix would be to use 'spin_lock_init()' on 'pchan->lock' before attempting to call 'spin_lock_irqsave()' in 'owl_dma_get_pchan()'. However, according to Manivannan Sadhasivam, 'pchan->lock' was supposed to only protect 'pchan->vchan' while 'od->lock' does a similar job in 'owl_dma_terminate_pchan()'. Therefore, this patch substitutes 'pchan->lock' with 'od->lock' and removes the 'lock' attribute in 'owl_dma_pchan' struct. Fixes: 47e20577c24d ("dmaengine: Add Actions Semi Owl family S900 DMA driver") Signed-off-by: Cristian Ciocaltea <cristian.ciocaltea@gmail.com> Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Acked-by: Andreas Färber <afaerber@suse.de> Link: https://lore.kernel.org/r/c6e6cdaca252b5364bd294093673951036488cf0.1588439073.git.cristian.ciocaltea@gmail.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-05-02 20:15:51 +03:00
dmaengine: Add Actions Semi Owl family S900 DMA driver Add Actions Semi Owl family S900 DMA driver. Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Signed-off-by: Vinod Koul <vkoul@kernel.org>
2018-07-26 10:36:57 +05:30
dmaengine: owl: Use correct lock in owl_dma_get_pchan() When the kernel is built with lockdep support and the owl-dma driver is used, the following message is shown: [ 2.496939] INFO: trying to register non-static key. [ 2.501889] the code is fine but needs lockdep annotation. [ 2.507357] turning off the locking correctness validator. [ 2.512834] CPU: 0 PID: 12 Comm: kworker/0:1 Not tainted 5.6.3+ #15 [ 2.519084] Hardware name: Generic DT based system [ 2.523878] Workqueue: events_freezable mmc_rescan [ 2.528681] [<801127f0>] (unwind_backtrace) from [<8010da58>] (show_stack+0x10/0x14) [ 2.536420] [<8010da58>] (show_stack) from [<8080fbe8>] (dump_stack+0xb4/0xe0) [ 2.543645] [<8080fbe8>] (dump_stack) from [<8017efa4>] (register_lock_class+0x6f0/0x718) [ 2.551816] [<8017efa4>] (register_lock_class) from [<8017b7d0>] (__lock_acquire+0x78/0x25f0) [ 2.560330] [<8017b7d0>] (__lock_acquire) from [<8017e5e4>] (lock_acquire+0xd8/0x1f4) [ 2.568159] [<8017e5e4>] (lock_acquire) from [<80831fb0>] (_raw_spin_lock_irqsave+0x3c/0x50) [ 2.576589] [<80831fb0>] (_raw_spin_lock_irqsave) from [<8051b5fc>] (owl_dma_issue_pending+0xbc/0x120) [ 2.585884] [<8051b5fc>] (owl_dma_issue_pending) from [<80668cbc>] (owl_mmc_request+0x1b0/0x390) [ 2.594655] [<80668cbc>] (owl_mmc_request) from [<80650ce0>] (mmc_start_request+0x94/0xbc) [ 2.602906] [<80650ce0>] (mmc_start_request) from [<80650ec0>] (mmc_wait_for_req+0x64/0xd0) [ 2.611245] [<80650ec0>] (mmc_wait_for_req) from [<8065aa10>] (mmc_app_send_scr+0x10c/0x144) [ 2.619669] [<8065aa10>] (mmc_app_send_scr) from [<80659b3c>] (mmc_sd_setup_card+0x4c/0x318) [ 2.628092] [<80659b3c>] (mmc_sd_setup_card) from [<80659f0c>] (mmc_sd_init_card+0x104/0x430) [ 2.636601] [<80659f0c>] (mmc_sd_init_card) from [<8065a3e0>] (mmc_attach_sd+0xcc/0x16c) [ 2.644678] [<8065a3e0>] (mmc_attach_sd) from [<8065301c>] (mmc_rescan+0x3ac/0x40c) [ 2.652332] [<8065301c>] (mmc_rescan) from [<80143244>] (process_one_work+0x2d8/0x780) [ 2.660239] [<80143244>] (process_one_work) from [<80143730>] (worker_thread+0x44/0x598) [ 2.668323] [<80143730>] (worker_thread) from [<8014b5f8>] (kthread+0x148/0x150) [ 2.675708] [<8014b5f8>] (kthread) from [<801010b4>] (ret_from_fork+0x14/0x20) [ 2.682912] Exception stack(0xee8fdfb0 to 0xee8fdff8) [ 2.687954] dfa0: 00000000 00000000 00000000 00000000 [ 2.696118] dfc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 [ 2.704277] dfe0: 00000000 00000000 00000000 00000000 00000013 00000000 The obvious fix would be to use 'spin_lock_init()' on 'pchan->lock' before attempting to call 'spin_lock_irqsave()' in 'owl_dma_get_pchan()'. However, according to Manivannan Sadhasivam, 'pchan->lock' was supposed to only protect 'pchan->vchan' while 'od->lock' does a similar job in 'owl_dma_terminate_pchan()'. Therefore, this patch substitutes 'pchan->lock' with 'od->lock' and removes the 'lock' attribute in 'owl_dma_pchan' struct. Fixes: 47e20577c24d ("dmaengine: Add Actions Semi Owl family S900 DMA driver") Signed-off-by: Cristian Ciocaltea <cristian.ciocaltea@gmail.com> Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Acked-by: Andreas Färber <afaerber@suse.de> Link: https://lore.kernel.org/r/c6e6cdaca252b5364bd294093673951036488cf0.1588439073.git.cristian.ciocaltea@gmail.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-05-02 20:15:51 +03:00
dmaengine: Add Actions Semi Owl family S900 DMA driver Add Actions Semi Owl family S900 DMA driver. Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Signed-off-by: Vinod Koul <vkoul@kernel.org>
2018-07-26 10:36:57 +05:30
dmaengine: owl: Use correct lock in owl_dma_get_pchan() When the kernel is built with lockdep support and the owl-dma driver is used, the following message is shown: [ 2.496939] INFO: trying to register non-static key. [ 2.501889] the code is fine but needs lockdep annotation. [ 2.507357] turning off the locking correctness validator. [ 2.512834] CPU: 0 PID: 12 Comm: kworker/0:1 Not tainted 5.6.3+ #15 [ 2.519084] Hardware name: Generic DT based system [ 2.523878] Workqueue: events_freezable mmc_rescan [ 2.528681] [<801127f0>] (unwind_backtrace) from [<8010da58>] (show_stack+0x10/0x14) [ 2.536420] [<8010da58>] (show_stack) from [<8080fbe8>] (dump_stack+0xb4/0xe0) [ 2.543645] [<8080fbe8>] (dump_stack) from [<8017efa4>] (register_lock_class+0x6f0/0x718) [ 2.551816] [<8017efa4>] (register_lock_class) from [<8017b7d0>] (__lock_acquire+0x78/0x25f0) [ 2.560330] [<8017b7d0>] (__lock_acquire) from [<8017e5e4>] (lock_acquire+0xd8/0x1f4) [ 2.568159] [<8017e5e4>] (lock_acquire) from [<80831fb0>] (_raw_spin_lock_irqsave+0x3c/0x50) [ 2.576589] [<80831fb0>] (_raw_spin_lock_irqsave) from [<8051b5fc>] (owl_dma_issue_pending+0xbc/0x120) [ 2.585884] [<8051b5fc>] (owl_dma_issue_pending) from [<80668cbc>] (owl_mmc_request+0x1b0/0x390) [ 2.594655] [<80668cbc>] (owl_mmc_request) from [<80650ce0>] (mmc_start_request+0x94/0xbc) [ 2.602906] [<80650ce0>] (mmc_start_request) from [<80650ec0>] (mmc_wait_for_req+0x64/0xd0) [ 2.611245] [<80650ec0>] (mmc_wait_for_req) from [<8065aa10>] (mmc_app_send_scr+0x10c/0x144) [ 2.619669] [<8065aa10>] (mmc_app_send_scr) from [<80659b3c>] (mmc_sd_setup_card+0x4c/0x318) [ 2.628092] [<80659b3c>] (mmc_sd_setup_card) from [<80659f0c>] (mmc_sd_init_card+0x104/0x430) [ 2.636601] [<80659f0c>] (mmc_sd_init_card) from [<8065a3e0>] (mmc_attach_sd+0xcc/0x16c) [ 2.644678] [<8065a3e0>] (mmc_attach_sd) from [<8065301c>] (mmc_rescan+0x3ac/0x40c) [ 2.652332] [<8065301c>] (mmc_rescan) from [<80143244>] (process_one_work+0x2d8/0x780) [ 2.660239] [<80143244>] (process_one_work) from [<80143730>] (worker_thread+0x44/0x598) [ 2.668323] [<80143730>] (worker_thread) from [<8014b5f8>] (kthread+0x148/0x150) [ 2.675708] [<8014b5f8>] (kthread) from [<801010b4>] (ret_from_fork+0x14/0x20) [ 2.682912] Exception stack(0xee8fdfb0 to 0xee8fdff8) [ 2.687954] dfa0: 00000000 00000000 00000000 00000000 [ 2.696118] dfc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 [ 2.704277] dfe0: 00000000 00000000 00000000 00000000 00000013 00000000 The obvious fix would be to use 'spin_lock_init()' on 'pchan->lock' before attempting to call 'spin_lock_irqsave()' in 'owl_dma_get_pchan()'. However, according to Manivannan Sadhasivam, 'pchan->lock' was supposed to only protect 'pchan->vchan' while 'od->lock' does a similar job in 'owl_dma_terminate_pchan()'. Therefore, this patch substitutes 'pchan->lock' with 'od->lock' and removes the 'lock' attribute in 'owl_dma_pchan' struct. Fixes: 47e20577c24d ("dmaengine: Add Actions Semi Owl family S900 DMA driver") Signed-off-by: Cristian Ciocaltea <cristian.ciocaltea@gmail.com> Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Acked-by: Andreas Färber <afaerber@suse.de> Link: https://lore.kernel.org/r/c6e6cdaca252b5364bd294093673951036488cf0.1588439073.git.cristian.ciocaltea@gmail.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-05-02 20:15:51 +03:00
dmaengine: Add Actions Semi Owl family S900 DMA driver Add Actions Semi Owl family S900 DMA driver. Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Signed-off-by: Vinod Koul <vkoul@kernel.org>
2018-07-26 10:36:57 +05:30
dmaengine: owl: Add Slave and Cyclic mode support for Actions Semi Owl S900 SoC Add Slave and Cyclic mode support for Actions Semi Owl S900 SoC. The slave mode supports bus width of 4 bytes common for all peripherals and 1 byte specific for UART. The cyclic mode supports only block mode transfer. Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Signed-off-by: Vinod Koul <vkoul@kernel.org>
2018-09-29 13:16:36 +05:30
dmaengine: Add Actions Semi Owl family S900 DMA driver Add Actions Semi Owl family S900 DMA driver. Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Signed-off-by: Vinod Koul <vkoul@kernel.org>
2018-07-26 10:36:57 +05:30
dmaengine: owl: Add Slave and Cyclic mode support for Actions Semi Owl S900 SoC Add Slave and Cyclic mode support for Actions Semi Owl S900 SoC. The slave mode supports bus width of 4 bytes common for all peripherals and 1 byte specific for UART. The cyclic mode supports only block mode transfer. Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Signed-off-by: Vinod Koul <vkoul@kernel.org>
2018-09-29 13:16:36 +05:30
dmaengine: Add Actions Semi Owl family S900 DMA driver Add Actions Semi Owl family S900 DMA driver. Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Signed-off-by: Vinod Koul <vkoul@kernel.org>
2018-07-26 10:36:57 +05:30
dmaengine: Actions: Add support for S700 DMA engine DMA controller present on S700 SoC is compatible with the one on S900 (as most of registers are same), but it has different DMA descriptor structure where registers "fcnt" and "ctrlb" uses different encoding. For instance, on S900 "fcnt" starts at offset 0x0c and uses upper 12 bits whereas on S700, it starts at offset 0x1c and uses lower 12 bits. This commit adds support for DMA controller present on S700. Signed-off-by: Amit Singh Tomar <amittomer25@gmail.com> Link: https://lore.kernel.org/r/1595180527-11320-4-git-send-email-amittomer25@gmail.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-07-19 23:12:00 +05:30
dmaengine: Add Actions Semi Owl family S900 DMA driver Add Actions Semi Owl family S900 DMA driver. Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Signed-off-by: Vinod Koul <vkoul@kernel.org>
2018-07-26 10:36:57 +05:30
dmaengine: virt-dma: Add missing locking Originally freeing descriptors was split into a locked and an unlocked part. The locked part in vchan_get_all_descriptors() collected all descriptors on a separate list_head. This was done to allow iterating over that new list in vchan_dma_desc_free_list() without a lock held. This became broken in 13bb26ae8850 ("dmaengine: virt-dma: don't always free descriptor upon completion"). With this commit vchan_dma_desc_free_list() no longer exclusively operates on the separate list, but starts to put descriptors which can be reused back on &vc->desc_allocated. This list operation should have been locked, but wasn't. In the mean time drivers started to call vchan_dma_desc_free_list() with their lock held so that we now have the situation that vchan_dma_desc_free_list() is called locked from some drivers and unlocked from others. To clean this up we have to do two things: 1. Add missing locking in vchan_dma_desc_free_list() 2. Make sure drivers call vchan_dma_desc_free_list() unlocked This needs to be done atomically, so in this patch the locking is added and all drivers are fixed. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Reviewed-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Tested-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Reviewed-by: Green Wan <green.wan@sifive.com> Tested-by: Green Wan <green.wan@sifive.com> Link: https://lore.kernel.org/r/20191216105328.15198-3-s.hauer@pengutronix.de Signed-off-by: Vinod Koul <vkoul@kernel.org>
2019-12-16 11:53:21 +01:00
dmaengine: Add Actions Semi Owl family S900 DMA driver Add Actions Semi Owl family S900 DMA driver. Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Signed-off-by: Vinod Koul <vkoul@kernel.org>
2018-07-26 10:36:57 +05:30
dmaengine: owl: Add Slave and Cyclic mode support for Actions Semi Owl S900 SoC Add Slave and Cyclic mode support for Actions Semi Owl S900 SoC. The slave mode supports bus width of 4 bytes common for all peripherals and 1 byte specific for UART. The cyclic mode supports only block mode transfer. Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Signed-off-by: Vinod Koul <vkoul@kernel.org>
2018-09-29 13:16:36 +05:30
dmaengine: Add Actions Semi Owl family S900 DMA driver Add Actions Semi Owl family S900 DMA driver. Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Signed-off-by: Vinod Koul <vkoul@kernel.org>
2018-07-26 10:36:57 +05:30
dmaengine: Actions: get rid of bit fields from dma descriptor At the moment, Driver uses bit fields to describe registers of the DMA descriptor structure that makes it less portable and maintainable, and Andre suugested(and even sketched important bits for it) to make use of array to describe this DMA descriptors instead. It gives the flexibility while extending support for other platform such as Actions S700. This commit removes the "owl_dma_lli_hw" (that includes bit-fields) and uses array to describe DMA descriptor. Suggested-by: Andre Przywara <andre.przywara@arm.com> Signed-off-by: Amit Singh Tomar <amittomer25@gmail.com> Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Link: https://lore.kernel.org/r/1595180527-11320-3-git-send-email-amittomer25@gmail.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-07-19 23:11:59 +05:30
dmaengine: Add Actions Semi Owl family S900 DMA driver Add Actions Semi Owl family S900 DMA driver. Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Signed-off-by: Vinod Koul <vkoul@kernel.org>
2018-07-26 10:36:57 +05:30
dmaengine: Actions: get rid of bit fields from dma descriptor At the moment, Driver uses bit fields to describe registers of the DMA descriptor structure that makes it less portable and maintainable, and Andre suugested(and even sketched important bits for it) to make use of array to describe this DMA descriptors instead. It gives the flexibility while extending support for other platform such as Actions S700. This commit removes the "owl_dma_lli_hw" (that includes bit-fields) and uses array to describe DMA descriptor. Suggested-by: Andre Przywara <andre.przywara@arm.com> Signed-off-by: Amit Singh Tomar <amittomer25@gmail.com> Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Link: https://lore.kernel.org/r/1595180527-11320-3-git-send-email-amittomer25@gmail.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-07-19 23:11:59 +05:30
dmaengine: Add Actions Semi Owl family S900 DMA driver Add Actions Semi Owl family S900 DMA driver. Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Signed-off-by: Vinod Koul <vkoul@kernel.org>
2018-07-26 10:36:57 +05:30
treewide: Replace kmalloc with kmalloc_obj for non-scalar types This is the result of running the Coccinelle script from scripts/coccinelle/api/kmalloc_objs.cocci. The script is designed to avoid scalar types (which need careful case-by-case checking), and instead replace kmalloc-family calls that allocate struct or union object instances: Single allocations: kmalloc(sizeof(TYPE), ...) are replaced with: kmalloc_obj(TYPE, ...) Array allocations: kmalloc_array(COUNT, sizeof(TYPE), ...) are replaced with: kmalloc_objs(TYPE, COUNT, ...) Flex array allocations: kmalloc(struct_size(PTR, FAM, COUNT), ...) are replaced with: kmalloc_flex(*PTR, FAM, COUNT, ...) (where TYPE may also be *VAR) The resulting allocations no longer return "void *", instead returning "TYPE *". Signed-off-by: Kees Cook <kees@kernel.org>
2026-02-20 23:49:23 -08:00
dmaengine: Add Actions Semi Owl family S900 DMA driver Add Actions Semi Owl family S900 DMA driver. Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Signed-off-by: Vinod Koul <vkoul@kernel.org>
2018-07-26 10:36:57 +05:30
dmaengine: owl: Add Slave and Cyclic mode support for Actions Semi Owl S900 SoC Add Slave and Cyclic mode support for Actions Semi Owl S900 SoC. The slave mode supports bus width of 4 bytes common for all peripherals and 1 byte specific for UART. The cyclic mode supports only block mode transfer. Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Signed-off-by: Vinod Koul <vkoul@kernel.org>
2018-09-29 13:16:36 +05:30
dmaengine: Add Actions Semi Owl family S900 DMA driver Add Actions Semi Owl family S900 DMA driver. Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Signed-off-by: Vinod Koul <vkoul@kernel.org>
2018-07-26 10:36:57 +05:30
dmaengine: owl: Add Slave and Cyclic mode support for Actions Semi Owl S900 SoC Add Slave and Cyclic mode support for Actions Semi Owl S900 SoC. The slave mode supports bus width of 4 bytes common for all peripherals and 1 byte specific for UART. The cyclic mode supports only block mode transfer. Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Signed-off-by: Vinod Koul <vkoul@kernel.org>
2018-09-29 13:16:36 +05:30
dmaengine: Add Actions Semi Owl family S900 DMA driver Add Actions Semi Owl family S900 DMA driver. Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Signed-off-by: Vinod Koul <vkoul@kernel.org>
2018-07-26 10:36:57 +05:30
dmaengine: owl: Add Slave and Cyclic mode support for Actions Semi Owl S900 SoC Add Slave and Cyclic mode support for Actions Semi Owl S900 SoC. The slave mode supports bus width of 4 bytes common for all peripherals and 1 byte specific for UART. The cyclic mode supports only block mode transfer. Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Signed-off-by: Vinod Koul <vkoul@kernel.org>
2018-09-29 13:16:36 +05:30
treewide: Replace kmalloc with kmalloc_obj for non-scalar types This is the result of running the Coccinelle script from scripts/coccinelle/api/kmalloc_objs.cocci. The script is designed to avoid scalar types (which need careful case-by-case checking), and instead replace kmalloc-family calls that allocate struct or union object instances: Single allocations: kmalloc(sizeof(TYPE), ...) are replaced with: kmalloc_obj(TYPE, ...) Array allocations: kmalloc_array(COUNT, sizeof(TYPE), ...) are replaced with: kmalloc_objs(TYPE, COUNT, ...) Flex array allocations: kmalloc(struct_size(PTR, FAM, COUNT), ...) are replaced with: kmalloc_flex(*PTR, FAM, COUNT, ...) (where TYPE may also be *VAR) The resulting allocations no longer return "void *", instead returning "TYPE *". Signed-off-by: Kees Cook <kees@kernel.org>
2026-02-20 23:49:23 -08:00
dmaengine: owl: Add Slave and Cyclic mode support for Actions Semi Owl S900 SoC Add Slave and Cyclic mode support for Actions Semi Owl S900 SoC. The slave mode supports bus width of 4 bytes common for all peripherals and 1 byte specific for UART. The cyclic mode supports only block mode transfer. Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Signed-off-by: Vinod Koul <vkoul@kernel.org>
2018-09-29 13:16:36 +05:30
treewide: Replace kmalloc with kmalloc_obj for non-scalar types This is the result of running the Coccinelle script from scripts/coccinelle/api/kmalloc_objs.cocci. The script is designed to avoid scalar types (which need careful case-by-case checking), and instead replace kmalloc-family calls that allocate struct or union object instances: Single allocations: kmalloc(sizeof(TYPE), ...) are replaced with: kmalloc_obj(TYPE, ...) Array allocations: kmalloc_array(COUNT, sizeof(TYPE), ...) are replaced with: kmalloc_objs(TYPE, COUNT, ...) Flex array allocations: kmalloc(struct_size(PTR, FAM, COUNT), ...) are replaced with: kmalloc_flex(*PTR, FAM, COUNT, ...) (where TYPE may also be *VAR) The resulting allocations no longer return "void *", instead returning "TYPE *". Signed-off-by: Kees Cook <kees@kernel.org>
2026-02-20 23:49:23 -08:00
dmaengine: owl: Add Slave and Cyclic mode support for Actions Semi Owl S900 SoC Add Slave and Cyclic mode support for Actions Semi Owl S900 SoC. The slave mode supports bus width of 4 bytes common for all peripherals and 1 byte specific for UART. The cyclic mode supports only block mode transfer. Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Signed-off-by: Vinod Koul <vkoul@kernel.org>
2018-09-29 13:16:36 +05:30
dmaengine: Add Actions Semi Owl family S900 DMA driver Add Actions Semi Owl family S900 DMA driver. Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Signed-off-by: Vinod Koul <vkoul@kernel.org>
2018-07-26 10:36:57 +05:30
dmaengine: owl: Add Slave and Cyclic mode support for Actions Semi Owl S900 SoC Add Slave and Cyclic mode support for Actions Semi Owl S900 SoC. The slave mode supports bus width of 4 bytes common for all peripherals and 1 byte specific for UART. The cyclic mode supports only block mode transfer. Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Signed-off-by: Vinod Koul <vkoul@kernel.org>
2018-09-29 13:16:36 +05:30
dmaengine: Actions: Add support for S700 DMA engine DMA controller present on S700 SoC is compatible with the one on S900 (as most of registers are same), but it has different DMA descriptor structure where registers "fcnt" and "ctrlb" uses different encoding. For instance, on S900 "fcnt" starts at offset 0x0c and uses upper 12 bits whereas on S700, it starts at offset 0x1c and uses lower 12 bits. This commit adds support for DMA controller present on S700. Signed-off-by: Amit Singh Tomar <amittomer25@gmail.com> Link: https://lore.kernel.org/r/1595180527-11320-4-git-send-email-amittomer25@gmail.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-07-19 23:12:00 +05:30
dmaengine: owl: Add compatible for the Actions Semi S500 DMA controller The DMA controller present on the Actions Semi S500 SoC is compatible with the S900 variant, so add it to the list of devices supported by the Actions Semi Owl DMA driver. Additionally, order the entries alphabetically. Signed-off-by: Cristian Ciocaltea <cristian.ciocaltea@gmail.com> Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Link: https://lore.kernel.org/r/88dc9dc064fd4c71f7ad46f172b05b09b9777e42.1609263738.git.cristian.ciocaltea@gmail.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-12-29 23:17:20 +02:00
dmaengine: Actions: Add support for S700 DMA engine DMA controller present on S700 SoC is compatible with the one on S900 (as most of registers are same), but it has different DMA descriptor structure where registers "fcnt" and "ctrlb" uses different encoding. For instance, on S900 "fcnt" starts at offset 0x0c and uses upper 12 bits whereas on S700, it starts at offset 0x1c and uses lower 12 bits. This commit adds support for DMA controller present on S700. Signed-off-by: Amit Singh Tomar <amittomer25@gmail.com> Link: https://lore.kernel.org/r/1595180527-11320-4-git-send-email-amittomer25@gmail.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-07-19 23:12:00 +05:30
dmaengine: owl: Add compatible for the Actions Semi S500 DMA controller The DMA controller present on the Actions Semi S500 SoC is compatible with the S900 variant, so add it to the list of devices supported by the Actions Semi Owl DMA driver. Additionally, order the entries alphabetically. Signed-off-by: Cristian Ciocaltea <cristian.ciocaltea@gmail.com> Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Link: https://lore.kernel.org/r/88dc9dc064fd4c71f7ad46f172b05b09b9777e42.1609263738.git.cristian.ciocaltea@gmail.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-12-29 23:17:20 +02:00
dmaengine: Actions: Add support for S700 DMA engine DMA controller present on S700 SoC is compatible with the one on S900 (as most of registers are same), but it has different DMA descriptor structure where registers "fcnt" and "ctrlb" uses different encoding. For instance, on S900 "fcnt" starts at offset 0x0c and uses upper 12 bits whereas on S700, it starts at offset 0x1c and uses lower 12 bits. This commit adds support for DMA controller present on S700. Signed-off-by: Amit Singh Tomar <amittomer25@gmail.com> Link: https://lore.kernel.org/r/1595180527-11320-4-git-send-email-amittomer25@gmail.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-07-19 23:12:00 +05:30
dmaengine: Add Actions Semi Owl family S900 DMA driver Add Actions Semi Owl family S900 DMA driver. Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Signed-off-by: Vinod Koul <vkoul@kernel.org>
2018-07-26 10:36:57 +05:30
dmaengine: owl: Use devm_platform_ioremap_resource() in owl_dma_probe() Simplify this function implementation by using a known wrapper function. This issue was detected by using the Coccinelle software. Signed-off-by: Markus Elfring <elfring@users.sourceforge.net> Link: https://lore.kernel.org/r/d36b6a6c-2e3d-8d68-6ddc-969a377ca3b2@web.de Signed-off-by: Vinod Koul <vkoul@kernel.org>
2019-09-22 13:23:54 +02:00
dmaengine: Add Actions Semi Owl family S900 DMA driver Add Actions Semi Owl family S900 DMA driver. Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Signed-off-by: Vinod Koul <vkoul@kernel.org>
2018-07-26 10:36:57 +05:30
dmaengine: owl-dma: fix clang -Wvoid-pointer-to-enum-cast warning When building with clang 18 I see the following warning: | drivers/dma/owl-dma.c:1119:14: warning: cast to smaller integer type | 'enum owl_dma_id' from 'const void *' [-Wvoid-pointer-to-enum-cast] | 1119 | od->devid = (enum owl_dma_id)of_device_get_match_data(&pdev->dev); This is due to the fact that `of_device_get_match_data()` returns a void* while `enum owl_dma_id` has the size of an int. Cast result of `of_device_get_match_data()` to a uintptr_t to silence the above warning for clang builds using W=1 Link: https://github.com/ClangBuiltLinux/linux/issues/1910 Reported-by: Nathan Chancellor <nathan@kernel.org> Signed-off-by: Justin Stitt <justinstitt@google.com> Acked-by: Manivannan Sadhasivam <mani@kernel.org> Link: https://lore.kernel.org/r/20230816-void-drivers-dma-owl-dma-v1-1-a0a5e085e937@google.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2023-08-16 20:12:50 +00:00
dmaengine: Actions: Add support for S700 DMA engine DMA controller present on S700 SoC is compatible with the one on S900 (as most of registers are same), but it has different DMA descriptor structure where registers "fcnt" and "ctrlb" uses different encoding. For instance, on S900 "fcnt" starts at offset 0x0c and uses upper 12 bits whereas on S700, it starts at offset 0x1c and uses lower 12 bits. This commit adds support for DMA controller present on S700. Signed-off-by: Amit Singh Tomar <amittomer25@gmail.com> Link: https://lore.kernel.org/r/1595180527-11320-4-git-send-email-amittomer25@gmail.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-07-19 23:12:00 +05:30
dmaengine: Add Actions Semi Owl family S900 DMA driver Add Actions Semi Owl family S900 DMA driver. Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Signed-off-by: Vinod Koul <vkoul@kernel.org>
2018-07-26 10:36:57 +05:30
dmaengine: owl: Add Slave and Cyclic mode support for Actions Semi Owl S900 SoC Add Slave and Cyclic mode support for Actions Semi Owl S900 SoC. The slave mode supports bus width of 4 bytes common for all peripherals and 1 byte specific for UART. The cyclic mode supports only block mode transfer. Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Signed-off-by: Vinod Koul <vkoul@kernel.org>
2018-09-29 13:16:36 +05:30
dmaengine: Add Actions Semi Owl family S900 DMA driver Add Actions Semi Owl family S900 DMA driver. Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Signed-off-by: Vinod Koul <vkoul@kernel.org>
2018-07-26 10:36:57 +05:30
dmaengine: owl: Add Slave and Cyclic mode support for Actions Semi Owl S900 SoC Add Slave and Cyclic mode support for Actions Semi Owl S900 SoC. The slave mode supports bus width of 4 bytes common for all peripherals and 1 byte specific for UART. The cyclic mode supports only block mode transfer. Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Signed-off-by: Vinod Koul <vkoul@kernel.org>
2018-09-29 13:16:36 +05:30
dmaengine: Add Actions Semi Owl family S900 DMA driver Add Actions Semi Owl family S900 DMA driver. Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Signed-off-by: Vinod Koul <vkoul@kernel.org>
2018-07-26 10:36:57 +05:30
dmaengine: Fix spelling mistakes Correct spelling mistakes in the DMA engine to improve readability and clarity without altering functionality. Signed-off-by: Amit Vadhavana <av2082000@gmail.com> Reviewed-by: Kees Cook <kees@kernel.org> Reviewed-by: Dave Jiang <dave.jiang@intel.com> Reviewed-by: Fenghua Yu <fenghua.yu@intel.com> Link: https://lore.kernel.org/r/20240831172949.13189-1-av2082000@gmail.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2024-08-31 22:59:49 +05:30
dmaengine: Add Actions Semi Owl family S900 DMA driver Add Actions Semi Owl family S900 DMA driver. Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Signed-off-by: Vinod Koul <vkoul@kernel.org>
2018-07-26 10:36:57 +05:30
dmaengine: owl: Add Slave and Cyclic mode support for Actions Semi Owl S900 SoC Add Slave and Cyclic mode support for Actions Semi Owl S900 SoC. The slave mode supports bus width of 4 bytes common for all peripherals and 1 byte specific for UART. The cyclic mode supports only block mode transfer. Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Signed-off-by: Vinod Koul <vkoul@kernel.org>
2018-09-29 13:16:36 +05:30
dmaengine: Add Actions Semi Owl family S900 DMA driver Add Actions Semi Owl family S900 DMA driver. Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Signed-off-by: Vinod Koul <vkoul@kernel.org>
2018-07-26 10:36:57 +05:30
dmaengine: owl: Add Slave and Cyclic mode support for Actions Semi Owl S900 SoC Add Slave and Cyclic mode support for Actions Semi Owl S900 SoC. The slave mode supports bus width of 4 bytes common for all peripherals and 1 byte specific for UART. The cyclic mode supports only block mode transfer. Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Signed-off-by: Vinod Koul <vkoul@kernel.org>
2018-09-29 13:16:36 +05:30
dmaengine: Add Actions Semi Owl family S900 DMA driver Add Actions Semi Owl family S900 DMA driver. Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Signed-off-by: Vinod Koul <vkoul@kernel.org>
2018-07-26 10:36:57 +05:30
dmaengine: owl-dma: Convert to platform remove callback returning void The .remove() callback for a platform driver returns an int which makes many driver authors wrongly assume it's possible to do error handling by returning an error code. However the value returned is ignored (apart from emitting a warning) and this typically results in resource leaks. To improve here there is a quest to make the remove callback return void. In the first step of this quest all drivers are converted to .remove_new() which already returns void. Eventually after all drivers are converted, .remove_new() is renamed to .remove(). Trivially convert this driver from always returning zero in the remove callback to the void returning variant. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Link: https://lore.kernel.org/r/20230919133207.1400430-32-u.kleine-koenig@pengutronix.de Signed-off-by: Vinod Koul <vkoul@kernel.org>
2023-09-19 15:31:39 +02:00
dmaengine: Add Actions Semi Owl family S900 DMA driver Add Actions Semi Owl family S900 DMA driver. Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Signed-off-by: Vinod Koul <vkoul@kernel.org>
2018-07-26 10:36:57 +05:30
dmaengine: owl: Add Slave and Cyclic mode support for Actions Semi Owl S900 SoC Add Slave and Cyclic mode support for Actions Semi Owl S900 SoC. The slave mode supports bus width of 4 bytes common for all peripherals and 1 byte specific for UART. The cyclic mode supports only block mode transfer. Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Signed-off-by: Vinod Koul <vkoul@kernel.org>
2018-09-29 13:16:36 +05:30
dmaengine: Add Actions Semi Owl family S900 DMA driver Add Actions Semi Owl family S900 DMA driver. Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Signed-off-by: Vinod Koul <vkoul@kernel.org>
2018-07-26 10:36:57 +05:30
dmaengine: owl-dma: Fix a resource leak in the remove function A 'dma_pool_destroy()' call is missing in the remove function. Add it. This call is already made in the error handling path of the probe function. Fixes: 47e20577c24d ("dmaengine: Add Actions Semi Owl family S900 DMA driver") Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Link: https://lore.kernel.org/r/20201212162535.95727-1-christophe.jaillet@wanadoo.fr Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-12-12 17:25:35 +01:00
dmaengine: Add Actions Semi Owl family S900 DMA driver Add Actions Semi Owl family S900 DMA driver. Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Signed-off-by: Vinod Koul <vkoul@kernel.org>
2018-07-26 10:36:57 +05:30
dmaengine: Switch back to struct platform_driver::remove() After commit 0edb555a65d1 ("platform: Make platform_driver::remove() return void") .remove() is (again) the right callback to implement for platform drivers. Convert all platform drivers below drivers/dma after the previous conversion commits apart from the wireless drivers to use .remove(), with the eventual goal to drop struct platform_driver::remove_new(). As .remove() and .remove_new() have the same prototypes, conversion is done by just changing the structure member name in the driver initializer. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@baylibre.com> Link: https://lore.kernel.org/r/20241004062227.187726-2-u.kleine-koenig@baylibre.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2024-10-04 08:22:27 +02:00
dmaengine: Add Actions Semi Owl family S900 DMA driver Add Actions Semi Owl family S900 DMA driver. Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Signed-off-by: Vinod Koul <vkoul@kernel.org>
2018-07-26 10:36:57 +05:30