aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/dma/pl330.c (follow)
AgeCommit message (Collapse)AuthorFilesLines
2011-09-21Merge branch 'samsung_dma' into nextVinod Koul1-22/+207
2011-09-20dmaengine: delete redundant chan_id and chancnt initialization in dma driversBarry Song1-2/+0
dma_async_device_register will re-init chan_id and chancnt, so whatever chan_id and chancnt are set in drivers, they will be re-written by dma_async_device_register. Cc: Nicolas Ferre <nicolas.ferre@atmel.com> Cc: Viresh Kumar <viresh.kumar@st.com> Cc: Vinod Koul <vinod.koul@intel.com> Cc: Piotr Ziecik <kosmo@semihalf.com> Cc: Yong Wang <yong.y.wang@intel.com> Cc: Jaswinder Singh <jassi.brar@samsung.com> Cc: Pelagicore AB <info@pelagicore.com> Signed-off-by: Barry Song <Baohua.Song@csr.com> Acked-by: Viresh Kumar <viresh.kumar@st.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2011-09-14DMA: PL330: Add DMA_CYCLIC capabilityBoojin Kim1-1/+83
This patch adds DMA_CYCLIC capability that is used for audio driver. DMA driver activated with it reuses the dma requests that were submitted through tx_submit(). Signed-off-by: Boojin Kim <boojin.kim@samsung.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Vinod Koul <vinod.koul@intel.com> Cc: Dan Williams <dan.j.williams@intel.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2011-09-14DMA: PL330: Remove the start operation for handling DMA_TERMINATE_ALL commandBoojin Kim1-4/+7
Original code carries out the start operation after flush operation. But start operation is not required for DMA_TERMINATE_ALL command. So, this patch removes the unnecessary start operation and only carries out the flush operation for handling DMA_TERMINATE_ALL command. Signed-off-by: Boojin Kim <boojin.kim@samsung.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Vinod Koul <vinod.koul@intel.com> Cc: Dan Williams <dan.j.williams@intel.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com> [Fixed typos in changelog] Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2011-09-14DMA: PL330: Support DMA_SLAVE_CONFIG commandBoojin Kim1-12/+37
Signed-off-by: Boojin Kim <boojin.kim@samsung.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Vinod Koul <vinod.koul@intel.com> Cc: Dan Williams <dan.j.williams@intel.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2011-09-14DMA: PL330: Update PL330 DMA API driverBoojin Kim1-5/+9
This patch updates following 3 items. 1. Removes unneccessary code. 2. Add AMBA, PL330 configuration 3. Change the meaning of 'peri_id' variable from PL330 event number to specific dma id by user. Signed-off-by: Boojin Kim <boojin.kim@samsung.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Vinod Koul <vinod.koul@intel.com> Cc: Dan Williams <dan.j.williams@intel.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2011-09-14DMA: PL330: Add support runtime PM for PL330 DMACBoojin Kim1-2/+73
Signed-off-by: Boojin Kim <boojin.kim@samsung.com> Acked-by: Jassi Brar <jassisinghbrar@gmail.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Vinod Koul <vinod.koul@intel.com> Cc: Dan Williams <dan.j.williams@intel.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2011-07-26dmaengine: pl330: make platform data optionalRob Herring1-28/+36
The pl330 needs platform data for describing peripheral connections, but some platforms may only support memory to memory dma channels. In this case, we can probe for how many channels there are and don't need the platform data. As memcpy requests don't need channel private data to hold peripheral info, allow private data to be NULL in this case. Signed-off-by: Rob Herring <rob.herring@calxeda.com> Cc: Jassi Brar <jassisinghbrar@gmail.com> Cc: Vinod Koul <vkoul@infradead.org> Cc: Dan Williams <dan.j.williams@intel.com> Acked-by: Jassi Brar <jassisinghbrar@gmail.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2011-02-23ARM: amba: make probe() functions take const id tablesRussell King1-1/+1
Make Primecell driver probe functions take a const pointer to their ID tables. Drivers should never modify their ID tables in their probe handler. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-05-23DMA: PL330: Add dma api driverJassi Brar1-0/+866
Add DMA Engine API driver for the PL330 DMAC. This driver is supposed to be reusable by various platforms that have one or more PL330 DMACs. Atm, DMA_SLAVE and DMA_MEMCPY capabilities have been implemented. Signed-off-by: Jassi Brar <jassi.brar@samsung.com> Reviewed-by: Linus Walleij <linus.walleij@stericsson.com> [dan.j.williams@intel.com: missing slab.h and ->device_control() fixups] Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.