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authorNarayanan G <narayanan.gopalakrishnan@stericsson.com>2012-02-09 12:41:37 +0530
committerVinod Koul <vinod.koul@linux.intel.com>2012-04-23 17:56:17 +0530
commit1bdae6f49c52af3a58998cdb051dbd5b942f9273 (patch)
tree4b3ad9b496be8755fb3571593286b3144d364c7b /drivers/dma/ste_dma40_ll.h
parented8b0d67f33518a16c6b2450fe5ebebf180c2d04 (diff)
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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.h2
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))