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path: root/drivers/dma/dma-uclass.c
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2021-07-06dm: define LOG_CATEGORY for all uclassPatrick Delaunay1-0/+2
Define LOG_CATEGORY for all uclass to allow filtering with log command. Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2020-12-13dm: treewide: Rename auto_alloc_size members to be shorterSimon Glass1-1/+1
This construct is quite long-winded. In earlier days it made some sense since auto-allocation was a strange concept. But with driver model now used pretty universally, we can shorten this to 'auto'. This reduces verbosity and makes it easier to read. Coincidentally it also ensures that every declaration is on one line, thus making dtoc's job easier. Signed-off-by: Simon Glass <sjg@chromium.org>
2020-10-08dma: Reduce error level when DMA channel type does not existVignesh Raghavendra1-2/+2
Caller would need gracefully handle failures of dma_get_device(), therefore reduce pr_err() to pr_debug() when DMA device is not found. Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com> Reviewed-by: Stefan Roese <sr@denx.de>
2020-05-19common: Drop log.h from common headerSimon Glass1-0/+1
Move this header out of the common header. Signed-off-by: Simon Glass <sjg@chromium.org>
2020-05-19common: Drop net.h from common headerSimon Glass1-0/+1
Move this header out of the common header. Network support is used in quite a few places but it still does not warrant blanket inclusion. Note that this net.h header itself has quite a lot in it. It could be split into the driver-mode support, functions, structures, checksumming, etc. Signed-off-by: Simon Glass <sjg@chromium.org>
2020-02-06dm: core: Create a new header file for 'compat' featuresSimon Glass1-0/+1
At present dm/device.h includes the linux-compatible features. This requires including linux/compat.h which in turn includes a lot of headers. One of these is malloc.h which we thus end up including in every file in U-Boot. Apart from the inefficiency of this, it is problematic for sandbox which needs to use the system malloc() in some files. Move the compatibility features into a separate header file. Signed-off-by: Simon Glass <sjg@chromium.org>
2020-02-06dma: Rename free() to rfree()Simon Glass1-2/+2
This function name conflicts with our desire to #define free() to something else on sandbox. Since it deals with resources, rename it to rfree(). Signed-off-by: Simon Glass <sjg@chromium.org>
2019-12-09dma: Introduce dma_get_cfg() interfaceVignesh Raghavendra1-0/+12
Sometimes, there would be a need to exchange data between DMA provider and DMA client which are very specific to DMA driver of the SoC/platform and are not generic enough to be put into struct dma. Therefore, introduce dma_get_cfg() interface to get DMA provider specific data from client device. Clients can use unique configuration ID flags to get different configuration data from DMA driver. Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com> Acked-by: Joe Hershberger <joe.hershberger@ni.com> Reviewed-by: Grygorii Strashko <grygorii.strashko@ti.com>
2019-12-03common: Move ARM cache operations out of common.hSimon Glass1-0/+1
These functions are CPU-related and do not use driver model. Move them to cpu_func.h Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com> Reviewed-by: Tom Rini <trini@konsulko.com>
2018-12-07dma: add channels supportÁlvaro Fernández Rojas1-4/+177
This adds channels support for dma controllers that have multiple channels which can transfer data to/from different devices (enet, usb...). DMA channle API: dma_get_by_index() dma_get_by_name() dma_request() dma_free() dma_enable() dma_disable() dma_prepare_rcv_buf() dma_receive() dma_send() Reviewed-by: Tom Rini <trini@konsulko.com> Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com> [grygorii.strashko@ti.com: drop unused dma_get_by_index_platdata(), add metadata to send/receive ops, add dma_prepare_rcv_buf(), minor clean up] Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2018-12-07dma: move dma_ops to dma-uclass.hÁlvaro Fernández Rojas1-1/+1
Move dma_ops to a separate header file, following other uclass implementations. While doing so, this patch also improves dma_ops documentation. Reviewed-by: Tom Rini <trini@konsulko.com> Reviewed-by: Simon Glass <sjg@chromium.org> Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com> Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
2018-05-07SPDX: Convert all of our single license tags to Linux Kernel styleTom Rini1-2/+1
When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
2018-04-27Remove unnecessary instances of DECLARE_GLOBAL_DATA_PTRTom Rini1-2/+0
We have a large number of places where while we historically referenced gd in the code we no longer do, as well as cases where the code added that line "just in case" during development and never dropped it. Signed-off-by: Tom Rini <trini@konsulko.com>
2017-10-04treewide: replace with error() with pr_err()Masahiro Yamada1-1/+1
U-Boot widely uses error() as a bit noisier variant of printf(). This macro causes name conflict with the following line in include/linux/compiler-gcc.h: # define __compiletime_error(message) __attribute__((error(message))) This prevents us from using __compiletime_error(), and makes it difficult to fully sync BUILD_BUG macros with Linux. (Notice Linux's BUILD_BUG_ON_MSG is implemented by using compiletime_assert().) Let's convert error() into now treewide-available pr_err(). Done with the help of Coccinelle, excluing tools/ directory. The semantic patch I used is as follows: // <smpl> @@@@ -error +pr_err (...) // </smpl> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Reviewed-by: Simon Glass <sjg@chromium.org> [trini: Re-run Coccinelle] Signed-off-by: Tom Rini <trini@konsulko.com>
2016-02-23dm: implement a DMA uclassMugunthan V N1-0/+72
Implement a DMA uclass so that the devices like ethernet, spi, mmc etc can offload the data transfers from/to the device and memory. Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jagan Teki <jteki@openedev.com>