diff options
| author | Narayanan G <narayanan.gopalakrishnan@stericsson.com> | 2012-02-09 08:11:37 +0100 |
|---|---|---|
| committer | Vinod Koul <vinod.koul@linux.intel.com> | 2012-04-23 14:26:17 +0200 |
| commit | 1bdae6f49c52af3a58998cdb051dbd5b942f9273 (patch) | |
| tree | 4b3ad9b496be8755fb3571593286b3144d364c7b /drivers/dma/ste_dma40_ll.h | |
| parent | dmaengine: at_hdmac: remove clear-on-read in atc_dostart() (diff) | |
| download | linux-1bdae6f49c52af3a58998cdb051dbd5b942f9273.tar.xz linux-1bdae6f49c52af3a58998cdb051dbd5b942f9273.zip | |
dma40: Improve the logic of stopping logical chan
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 <narayanan.gopalakrishnan@stericsson.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com>
Diffstat (limited to 'drivers/dma/ste_dma40_ll.h')
| -rw-r--r-- | drivers/dma/ste_dma40_ll.h | 2 |
1 files changed, 0 insertions, 2 deletions
diff --git a/drivers/dma/ste_dma40_ll.h b/drivers/dma/ste_dma40_ll.h index 8d3d490968a3..51e8e5396e9b 100644 --- a/drivers/dma/ste_dma40_ll.h +++ b/drivers/dma/ste_dma40_ll.h @@ -62,8 +62,6 @@ #define D40_SREG_ELEM_LOG_LIDX_MASK (0xFF << D40_SREG_ELEM_LOG_LIDX_POS) /* Link register */ -#define D40_DEACTIVATE_EVENTLINE 0x0 -#define D40_ACTIVATE_EVENTLINE 0x1 #define D40_EVENTLINE_POS(i) (2 * i) #define D40_EVENTLINE_MASK(i) (0x3 << D40_EVENTLINE_POS(i)) |