diff options
| author | Narayanan <narayanan.gopalakrishnan@stericsson.com> | 2011-09-13 17:00:22 +0530 |
|---|---|---|
| committer | Philippe Langlais <philippe.langlais@stericsson.com> | 2012-05-22 11:02:55 +0200 |
| commit | c2c665fd41b5544cce3be4d972e9c9bde9e29060 (patch) | |
| tree | 06b51de60e9cab93d1b60146f64e2c8d025e4775 | |
| parent | 76e10d158efb6d4516018846f60c2ab5501900bc (diff) | |
dma40: Resetting priority bit for logical channels
This patch will set the SSCFG/SDCFG bit[7] PRI only for physical
channel requests with high priority. For logical channels,
this bit will be zero.
ST-Ericsson ID: 361435
ST-Ericsson FOSS-OUT ID: Trivial
ST-Ericsson Linux next: NA
Change-Id: I1afb5c039387f9f9295c73e9dee92dc87bb15aeb
Signed-off-by: Narayanan G <narayanan.gopalakrishnan@stericsson.com>
Reviewed-on: http://gerrit.lud.stericsson.com/gerrit/30839
Reviewed-by: Rabin VINCENT <rabin.vincent@stericsson.com>
Reviewed-on: http://gerrit.lud.stericsson.com/gerrit/31929
| -rw-r--r-- | drivers/dma/ste_dma40_ll.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/drivers/dma/ste_dma40_ll.c b/drivers/dma/ste_dma40_ll.c index cad9e1daedf..450079e2c12 100644 --- a/drivers/dma/ste_dma40_ll.c +++ b/drivers/dma/ste_dma40_ll.c @@ -102,16 +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; |