From c2c665fd41b5544cce3be4d972e9c9bde9e29060 Mon Sep 17 00:00:00 2001 From: Narayanan Date: Tue, 13 Sep 2011 17:00:22 +0530 Subject: 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 Reviewed-on: http://gerrit.lud.stericsson.com/gerrit/30839 Reviewed-by: Rabin VINCENT Reviewed-on: http://gerrit.lud.stericsson.com/gerrit/31929 --- drivers/dma/ste_dma40_ll.c | 10 ++++++---- 1 file 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; -- cgit v1.2.3