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2022-01-19doc: replace @return by Return:Heinrich Schuchardt1-12/+12
Sphinx expects Return: and not @return to indicate a return value. find . -name '*.c' -exec \ sed -i 's/^\(\s\)\*\(\s*\)@return\(\s\)/\1*\2Return:\3/' {} \; find . -name '*.h' -exec \ sed -i 's/^\(\s\)\*\(\s*\)@return\(\s\)/\1*\2Return:\3/' {} \; Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
2021-02-02common: Drop asm/global_data.h from common headerSimon Glass1-0/+2
Move this out of the common header and include it only where needed. In a number of cases this requires adding "struct udevice;" to avoid adding another large header or in other cases replacing / adding missing header files that had been pulled in, very indirectly. Finally, we have a few cases where we did not need to include <asm/global_data.h> at all, so remove that include. Signed-off-by: Simon Glass <sjg@chromium.org> Signed-off-by: Tom Rini <trini@konsulko.com>
2020-05-18common: Drop linux/bitops.h from common headerSimon Glass1-0/+1
Move this uncommon header out of the common header. Signed-off-by: Simon Glass <sjg@chromium.org>
2020-01-15dma: Add stub of dma_memcpy and dma_get_deviceVignesh Raghavendra1-0/+11
Add stub for dma_memcpy() and dma_get_device when CONFIG_DMA is disabled. This avoids ifdefs in driver code using DMA APIs Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com> Reviewed-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>
2018-12-07dma: add channels supportÁlvaro Fernández Rojas1-2/+258
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 Rojas1-22/+0
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>
2016-02-23dm: implement a DMA uclassMugunthan V N1-0/+86
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>