talos-obmc-linux/drivers/dma/ste_dma40_ll.h, branch dev-4.10

dmaengine: ste_dma40: Remove unnecessary call to d40_phy_cfg()

2013-05-23T19:13:19+00:00

The majority of configuration done in d40_phy_config() pertains to physical channels. Move the call over to runtime config which has different code paths for physical and logical channels already, and make it an exclusive physical channel config function as the name implies, and drop the is_log argument. Since we moved the call to runtime_config() it only gets called for device transfers, so encode the small snippet of configuration pertaining to memcpy channels into the d40_config_memcpy() function. Acked-by: Vinod Koul Acked-by: Arnd Bergmann Signed-off-by: Lee Jones [rewrote the commit message] Signed-off-by: Linus Walleij

dmaengine: ste_dma40: support more than 128 event lines

2013-01-14T09:50:48+00:00

U8540 DMA controller is different from u9540 we need define new registers and use them to support handling more than 128 event lines. Signed-off-by: Tong Liu Reviewed-by: Per Forlin Acked-by: Linus Walleij Acked-by: Vinod Koul Signed-off-by: Fabio Baltieri

dma: fix comments

2012-09-01T15:57:12+00:00

Correct spelling typo in drivers/dma. Signed-off-by: Masanari Iida Signed-off-by: Jiri Kosina

dma40: Improve the logic of stopping logical chan

2012-04-23T12:26:17+00:00

can be directly stopped by issuing a SUSPEND_REQ on the EE bits. There is no need to suspend the physical channel and restart it. Also, the support for pre-V2 hw is discontinued. EE bits for writing: 00: disable only if AS=11 or AS=00 01: enable 10: suspend_req only if AS=01 & EE=01 or EE=11 11: round / no change for writing Signed-off-by: Narayanan G Acked-by: Linus Walleij Signed-off-by: Vinod Koul

dmaengine/ste_dma40: support pm in dma40

2011-11-22T04:16:06+00:00

This patch adds power management support to the dma40 driver. The DMA registers are backed up and restored, during suspend/resume. Also flags to track the dma usage have been introduced to facilitate this. Patch also includes few other minor changes, related to formatting, comments. Signed-off-by: Narayanan G Acked-by: Linus Walleij Signed-off-by: Vinod Koul

dmaengine/ste_dma40: use AMBA PrimeCell helper macros

2011-07-13T22:39:10+00:00

The DMA40 is not a PrimeCell from ARM, but it still use the same ID registers. So let's utilize the existing macros in the PrimeCell header to identify manufacturer and revision of the IP block instead of reinventing the wheel. Cc: Robert Marklund Cc: Per Forlin Cc: Rabin Vincent Signed-off-by: Linus Walleij Signed-off-by: Vinod Koul

dma40: cyclic xfer support

2011-01-31T06:27:21+00:00

Support cyclic transfers, which are useful for ALSA drivers. Acked-by: Per Forlin Acked-by: Jonas Aaberg Signed-off-by: Rabin Vincent Signed-off-by: Linus Walleij Signed-off-by: Dan Williams

dma40: use flags to reduce parameter count

2011-01-31T06:27:20+00:00

Acked-by: Per Forlin Acked-by: Jonas Aaberg Signed-off-by: Rabin Vincent Signed-off-by: Linus Walleij Signed-off-by: Dan Williams

dma40: make d40_log_buf_to_lli static

2011-01-31T06:27:20+00:00

Acked-by: Per Forlin Acked-by: Jonas Aaberg Signed-off-by: Rabin Vincent Signed-off-by: Linus Walleij Signed-off-by: Dan Williams

dma40: pass the info pointer all the way to reduce argument count

2011-01-31T06:27:20+00:00

Acked-by: Per Forlin Acked-by: Jonas Aaberg Signed-off-by: Rabin Vincent Signed-off-by: Linus Walleij Signed-off-by: Dan Williams