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authorNarayanan <narayanan.gopalakrishnan@stericsson.com>2011-09-13 17:00:22 +0530
committerFabio Baltieri <fabio.baltieri@linaro.org>2013-01-14 10:50:09 +0100
commit0fd602235dd702d16722857da748d15c26b81ed1 (patch)
treeee767fd8fdfcddb785629c755866271aca08227c /drivers/dma
parentd1c3ed669a2d452cacfb48c2d171a1f364dae2ed (diff)
dmaengine: ste_dma40: reset priority bit for logical channels
This patch sets the SSCFG/SDCFG bit[7] PRI only for physical channel requests with high priority. For logical channels, this bit will be zero. Signed-off-by: Narayanan G <narayanan.gopalakrishnan@stericsson.com> Reviewed-by: Rabin Vincent <rabin.vincent@stericsson.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Vinod Koul <vinod.koul@intel.com> Signed-off-by: Fabio Baltieri <fabio.baltieri@linaro.org>
Diffstat (limited to 'drivers/dma')
-rw-r--r--drivers/dma/ste_dma40_ll.c11
1 files changed, 6 insertions, 5 deletions
diff --git a/drivers/dma/ste_dma40_ll.c b/drivers/dma/ste_dma40_ll.c
index 851ad56e8409..d64b72ae2dc8 100644
--- a/drivers/dma/ste_dma40_ll.c
+++ b/drivers/dma/ste_dma40_ll.c
@@ -102,17 +102,18 @@ void d40_phy_cfg(struct stedma40_chan_cfg *cfg,
src |= cfg->src_info.data_width << D40_SREG_CFG_ESIZE_POS;
dst |= cfg->dst_info.data_width << D40_SREG_CFG_ESIZE_POS;
+ /* Set the priority bit to high for the physical channel */
+ if (cfg->high_priority) {
+ src |= 1 << D40_SREG_CFG_PRI_POS;
+ dst |= 1 << D40_SREG_CFG_PRI_POS;
+ }
+
} else {
/* Logical channel */
dst |= 1 << D40_SREG_CFG_LOG_GIM_POS;
src |= 1 << D40_SREG_CFG_LOG_GIM_POS;
}
- if (cfg->high_priority) {
- src |= 1 << D40_SREG_CFG_PRI_POS;
- dst |= 1 << D40_SREG_CFG_PRI_POS;
- }
-
if (cfg->src_info.big_endian)
src |= 1 << D40_SREG_CFG_LBE_POS;
if (cfg->dst_info.big_endian)