- 13 Jan, 2015 11 commits
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Kevin Hao authored
Since commit ecc19d17 ("dmaengine: Add a warning for drivers not using the generic slave caps retrieval"), the dma drivers are required to fill the caps infos in order to support generic slaves caps retrieval. Otherwise we will get a warning like this: WARNING: at drivers/dma/dmaengine.c:830 Modules linked in: CPU: 0 PID: 1 Comm: swapper/0 Tainted: G W 3.19.0-rc2-next-20150106-dirty #271 task: c0000001f70a0000 ti: c0000001f7044000 task.ti: c0000001f7044000 NIP: c00000000032b238 LR: c00000000032b234 CTR: c00000000001d258 REGS: c0000001f7047330 TRAP: 0700 Tainted: G W (3.19.0-rc2-next-20150106-dirty) MSR: 0000000080029000 <CE,EE,ME> CR: 24adbe22 XER: 20000000 SOFTE: 1 GPR00: c00000000032b234 c0000001f70475b0 c0000000009b4848 0000000000000040 GPR04: 0000000000000001 0000000000000001 0000000000000000 000000000000000f GPR08: 0000000000000000 c000000000902988 c000000000902988 00000000000052c8 GPR12: 0000000024adbe22 c00000000fff4000 c000000000002038 0000000000000000 GPR16: 0000000000000000 0000000000000000 0000000000000000 0000000000000000 GPR20: 0000000000000000 0000000000000000 0000000000000000 0000000000000000 GPR24: 0000000000000000 0000000000000000 c000000000972dc8 c0000000007e6fd0 GPR28: c0000001f76d1d30 c0000001f76d1c10 c0000001f76d1c00 0000000000000000 NIP [c00000000032b238] .dma_async_device_register+0x3f8/0x5b8 LR [c00000000032b234] .dma_async_device_register+0x3f4/0x5b8 Call Trace: [c0000001f70475b0] [c00000000032b234] .dma_async_device_register+0x3f4/0x5b8 (unreliable) [c0000001f70476a0] [c00000000032ca78] .fsldma_of_probe+0x298/0x438 [c0000001f7047750] [c00000000037080c] .platform_drv_probe+0x50/0x9c [c0000001f70477d0] [c00000000036e74c] .really_probe+0xa4/0x29c [c0000001f7047870] [c00000000036eae4] .__driver_attach+0x100/0x104 [c0000001f7047900] [c00000000036c1f0] .bus_for_each_dev+0x84/0xe4 [c0000001f70479a0] [c00000000036e164] .driver_attach+0x24/0x38 [c0000001f7047a10] [c00000000036dcc8] .bus_add_driver+0x1c8/0x2ac [c0000001f7047ab0] [c00000000036f14c] .driver_register+0x8c/0x158 [c0000001f7047b30] [c0000000003707a8] .__platform_driver_register+0x6c/0x80 [c0000001f7047ba0] [c000000000898a3c] .fsldma_init+0x2c/0x40 [c0000001f7047c10] [c000000000001818] .do_one_initcall+0xb8/0x234 [c0000001f7047d00] [c000000000878e2c] .kernel_init_freeable+0x188/0x268 [c0000001f7047db0] [c000000000002054] .kernel_init+0x1c/0xfc8 [c0000001f7047e30] [c000000000000884] .ret_from_kernel_thread+0x58/0xd4 Instruction dump: 7fb9f840 3bffffe0 409effac 7f54d378 48000060 813d0050 2f890000 40befdd0 3c62ffe3 38632450 482f0aa9 60000000 <0fe00000> 4bfffdb8 7f03c378 482ed465 Signed-off-by:
Kevin Hao <haokexin@gmail.com> Signed-off-by:
Vinod Koul <vinod.koul@intel.com>
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Kuninori Morimoto authored
ecc19d17 (dmaengine: Add a warning for drivers not using the generic slave caps retrieval) added WARN() for DMA_SLAVE. Kernel will shows WARNING without this patch. Signed-off-by:
Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by:
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Fabio Estevam authored
There is no need to return a 'fake' value upon platform_get_irq() failure. Just propagate the real error instead. Signed-off-by:
Fabio Estevam <fabio.estevam@freescale.com> Signed-off-by:
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Fabio Estevam authored
By using devm functions we can make the code shorter and cleaner. Signed-off-by:
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Fabio Estevam authored
Since ecc19d17 ("dmaengine: Add a warning for drivers not using the generic slave caps retrieval") the following warning is observed: [ 0.224981] ------------[ cut here ]------------ [ 0.225013] WARNING: CPU: 0 PID: 1 at drivers/dma/dmaengine.c:830 dma_async_device_register+0x2a0/0x4c8() [ 0.225023] this driver doesn't support generic slave capabilities reporting Declare the slave capabilities to avoid such warning. Signed-off-by:
Maxime Ripard <maxime.ripard@free-electrons.com> Signed-off-by:
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Fabio Estevam authored
Since ecc19d17 ("dmaengine: Add a warning for drivers not using the generic slave caps retrieval") the following warning is observed: [ 0.113023] ------------[ cut here ]------------ [ 0.113053] WARNING: CPU: 0 PID: 1 at drivers/dma/dmaengine.c:830 dma_async_device_register+0x2a0/0x4c8() [ 0.113063] this driver doesn't support generic slave capabilities reporting Declare the slave capabilities to avoid such warning. Signed-off-by:
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Andy Shevchenko authored
The new DMAEngine requirement is to provide what the DMA controller can do, such as directions, bus widths, and residue granularity. The patch sets those properties for the DesignWare DMA controller driver. Signed-off-by:
Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by:
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Arnd Bergmann authored
In a recent cleanup, the mmp_tdma_terminate_all function was introduced but does not set a proper return value. Almost no slave driver uses that return value, but if one does, the result will be undefined, which the compiler warns about: dma/mmp_tdma.c: In function 'mmp_tdma_terminate_all': dma/mmp_tdma.c:474:1: warning: no return statement in function returning non-void [-Wreturn-type] This changes the driver to return zero, like most other drivers do. Signed-off-by:
Arnd Bergmann <arnd@arndb.de> Fixes: f43a6fd4 ("dmaengine: mmp-tdma: Split device_control") Signed-off-by:
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Arnd Bergmann authored
The mmp tdma driver does not actually require this header, and we want to enable multiplatform support for MMP, which would make it inaccessible and cause a build error. This patch just removes the old #include. Signed-off-by:
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Arnd Bergmann authored
Commit db08425e ("dmaengine: k3: Split device_control") introduced two new helper functions, which unfortunately have the same names as the existing suspend/resume functions, resulting in a build error when CONFIG_PM_SLEEP is enabled: drivers/dma/k3dma.c:823:12: error: conflicting types for 'k3_dma_resume' static int k3_dma_resume(struct device *dev) ^ drivers/dma/k3dma.c:625:12: note: previous definition of 'k3_dma_resume' was here static int k3_dma_resume(struct dma_chan *chan) ^ Signed-off-by:
Mark Brown <broonie@kernel.org> Signed-off-by:
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Krzysztof Kozlowski authored
While splitting device control in db08425e ("dmaengine: k3: Split device_control") new function with the same 'k3_dma_resume' name was added, leading to build error: drivers/dma/k3dma.c:823:12: error: conflicting types for ‘k3_dma_resume’ drivers/dma/k3dma.c:625:12: note: previous definition of ‘k3_dma_resume’ was here Signed-off-by:
Krzysztof Kozlowski <k.kozlowski@samsung.com> Signed-off-by:
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- 22 Dec, 2014 29 commits
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Vinod Koul authored
driver comment refers to DMA_PAUSE which needs to be updated to .device_pause Signed-off-by: -
Vinod Koul authored
driver comment refers to DMA_SLAVE_CONFIG which needs to be updated to .device_config Signed-off-by: -
Vinod Koul authored
driver comment refers to DMA_SLAVE_CONFIG which needs to be updated to .device_config Signed-off-by: -
Vinod Koul authored
driver comment refers to DMA_SLAVE_CONFIG which needs to be updated to .device_config Signed-off-by: -
Vinod Koul authored
drivers/dma/tegra20-apb-dma.c:1428:37: warning: assignment from incompatible pointer type [enabled by default] drivers/dma/ste_dma40.c: In function 'd40_terminate_all': The function prototype expects return type 'int' whereas these where void Signed-off-by: -
Vinod Koul authored
drivers/dma/ste_dma40.c:2627:3: warning: 'return' with a value, in function returning void [enabled by default] drivers/dma/ste_dma40.c: In function 'd40_ops_init': drivers/dma/ste_dma40.c:2869:28: warning: assignment from incompatible pointer type [enabled by default] The function prototype expects return type 'int' whereas these where void Signed-off-by: -
Vinod Koul authored
drivers/dma/mxs-dma.c: In function 'mxs_dma_terminate_all': drivers/dma/mxs-dma.c:662:23: warning: unused variable 'mxs_chan'[-Wunused-variable] Signed-off-by: -
Vinod Koul authored
drivers/dma/mxs-dma.c: In function 'mxs_dma_probe': drivers/dma/mxs-dma.c:848:35: warning: assignment from incompatible pointer type [enabled by default] drivers/dma/mxs-dma.c:849:36: warning: assignment from incompatible pointer type [enabled by default] The function prototype expects return type 'int' whereas these where void Signed-off-by: -
Vinod Koul authored
dma_slave_config is expected to be set for slave operations Only, not for memcpy ones Signed-off-by: -
Vinod Koul authored
Signed-off-by: -
Vinod Koul authored
mxs_dma_reset_chan() expects struct dma_chan * as argument but we were providing struct dma_chan, so fix this Signed-off-by: -
Maxime Ripard authored
Now that we have splitted device_control and removed device_slave_caps in favor of a few dma_device variables, update the documentation accordingly. Signed-off-by:
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Maxime Ripard authored
Now that device_control has been split into several functions, and device_slave_caps rendered useless, we can safely remove them. Signed-off-by:
Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by:
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Maxime Ripard authored
For the slave caps retrieval to be really useful, most drivers need to implement it. Hence, we need to be slightly more aggressive, and trigger a warning at registration time for drivers that don't fill their caps infos in order to encourage them to implement it. Signed-off-by:
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Maxime Ripard authored
Now that the generic slave caps code can make use of the device assigned capabilities, instead of relying on a callback to be implemented. Make use of this code. Signed-off-by:
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Maxime Ripard authored
Now that the generic slave caps code can make use of the device assigned capabilities, instead of relying on a callback to be implemented. Make use of this code. Signed-off-by:
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Maxime Ripard authored
Now that the generic slave caps code can make use of the device assigned capabilities, instead of relying on a callback to be implemented. Make use of this code. Signed-off-by:
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Maxime Ripard authored
Now that the generic slave caps code can make use of the device assigned capabilities, instead of relying on a callback to be implemented. Make use of this code. Signed-off-by:
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Maxime Ripard authored
Now that the generic slave caps code can make use of the device assigned capabilities, instead of relying on a callback to be implemented. Make use of this code. Signed-off-by:
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Maxime Ripard authored
Now that the generic slave caps code can make use of the device assigned capabilities, instead of relying on a callback to be implemented. Make use of this code. Signed-off-by:
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Maxime Ripard authored
Now that the generic slave caps code can make use of the device assigned capabilities, instead of relying on a callback to be implemented. Make use of this code. Signed-off-by:
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Maxime Ripard authored
Now that the generic slave caps code can make use of the device assigned capabilities, instead of relying on a callback to be implemented. Make use of this code. Signed-off-by:
Stephen Warren <swarren@wwwdotorg.org> Signed-off-by:
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Ludovic Desroches authored
Now that the generic slave caps code can make use of the device assigned capabilities, instead of relying on a callback to be implemented. Make use of this code. Signed-off-by:
Ludovic Desroches <ludovic.desroches@atmel.com> Signed-off-by:
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Maxime Ripard authored
Rename the device_control callback of the TXX9 DMA driver to terminate_all since it's all it's really doing. That will eventually be used to retrieve slave capabilities. Signed-off-by:
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Maxime Ripard authored
Rename the device_control callback of the TXX9 DMA driver to terminate_all since it's all it's really doing. That will eventually be used to retrieve slave capabilities. Signed-off-by:
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Maxime Ripard authored
Rename the device_control callback of the Timberdal DMA driver to terminate_all since it's all it's really doing. That will eventually be used to retrieve slave capabilities. Signed-off-by:
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Maxime Ripard authored
Rename the device_control callback of the Intel PCH DMA driver to terminate_all since it's all it's really doing. That will eventually be used to retrieve slave capabilities. Signed-off-by:
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Maxime Ripard authored
The Marvell XOR engine doesn't allow any operations that use to be defined in device_control, it shouldn't need to be defined. Since it's going to be deprecated, remove it altogether. Signed-off-by:
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Maxime Ripard authored
Split the device_control callback of the Xilinx VDMA driver to make use of the newly introduced callbacks, that will eventually be used to retrieve slave capabilities. Signed-off-by:
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