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authorLinus Torvalds <torvalds@linux-foundation.org>2013-02-26 09:24:48 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2013-02-26 09:24:48 -0800
commit5115f3c19d17851aaff5a857f55b4a019c908775 (patch)
tree0d02cf01e12e86365f4f5e3b234f986daef181a7 /drivers/dma/ste_dma40_ll.c
parentMerge tag 'pm+acpi-fixes-3.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm (diff)
parentRevert "ARM: SPEAr13xx: Pass DW DMAC platform data from DT" (diff)
downloadlinux-dev-5115f3c19d17851aaff5a857f55b4a019c908775.tar.xz
linux-dev-5115f3c19d17851aaff5a857f55b4a019c908775.zip
Merge branch 'next' of git://git.infradead.org/users/vkoul/slave-dma
Pull slave-dmaengine updates from Vinod Koul: "This is fairly big pull by my standards as I had missed last merge window. So we have the support for device tree for slave-dmaengine, large updates to dw_dmac driver from Andy for reusing on different architectures. Along with this we have fixes on bunch of the drivers" Fix up trivial conflicts, usually due to #include line movement next to each other. * 'next' of git://git.infradead.org/users/vkoul/slave-dma: (111 commits) Revert "ARM: SPEAr13xx: Pass DW DMAC platform data from DT" ARM: dts: pl330: Add #dma-cells for generic dma binding support DMA: PL330: Register the DMA controller with the generic DMA helpers DMA: PL330: Add xlate function DMA: PL330: Add new pl330 filter for DT case. dma: tegra20-apb-dma: remove unnecessary assignment edma: do not waste memory for dma_mask dma: coh901318: set residue only if dma is in progress dma: coh901318: avoid unbalanced locking dmaengine.h: remove redundant else keyword dma: of-dma: protect list write operation by spin_lock dmaengine: ste_dma40: do not remove descriptors for cyclic transfers dma: of-dma.c: fix memory leakage dw_dmac: apply default dma_mask if needed dmaengine: ioat - fix spare sparse complain dmaengine: move drivers/of/dma.c -> drivers/dma/of-dma.c ioatdma: fix race between updating ioat->head and IOAT_COMPLETION_PENDING dw_dmac: add support for Lynxpoint DMA controllers dw_dmac: return proper residue value dw_dmac: fill individual length of descriptor ...
Diffstat (limited to 'drivers/dma/ste_dma40_ll.c')
-rw-r--r--drivers/dma/ste_dma40_ll.c29
1 files changed, 15 insertions, 14 deletions
diff --git a/drivers/dma/ste_dma40_ll.c b/drivers/dma/ste_dma40_ll.c
index 851ad56e8409..7180e0d41722 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)
@@ -250,7 +251,7 @@ d40_phy_buf_to_lli(struct d40_phy_lli *lli, dma_addr_t addr, u32 size,
return lli;
- err:
+err:
return NULL;
}
@@ -331,10 +332,10 @@ void d40_log_lli_lcpa_write(struct d40_log_lli_full *lcpa,
{
d40_log_lli_link(lli_dst, lli_src, next, flags);
- writel(lli_src->lcsp02, &lcpa[0].lcsp0);
- writel(lli_src->lcsp13, &lcpa[0].lcsp1);
- writel(lli_dst->lcsp02, &lcpa[0].lcsp2);
- writel(lli_dst->lcsp13, &lcpa[0].lcsp3);
+ writel_relaxed(lli_src->lcsp02, &lcpa[0].lcsp0);
+ writel_relaxed(lli_src->lcsp13, &lcpa[0].lcsp1);
+ writel_relaxed(lli_dst->lcsp02, &lcpa[0].lcsp2);
+ writel_relaxed(lli_dst->lcsp13, &lcpa[0].lcsp3);
}
void d40_log_lli_lcla_write(struct d40_log_lli *lcla,
@@ -344,10 +345,10 @@ void d40_log_lli_lcla_write(struct d40_log_lli *lcla,
{
d40_log_lli_link(lli_dst, lli_src, next, flags);
- writel(lli_src->lcsp02, &lcla[0].lcsp02);
- writel(lli_src->lcsp13, &lcla[0].lcsp13);
- writel(lli_dst->lcsp02, &lcla[1].lcsp02);
- writel(lli_dst->lcsp13, &lcla[1].lcsp13);
+ writel_relaxed(lli_src->lcsp02, &lcla[0].lcsp02);
+ writel_relaxed(lli_src->lcsp13, &lcla[0].lcsp13);
+ writel_relaxed(lli_dst->lcsp02, &lcla[1].lcsp02);
+ writel_relaxed(lli_dst->lcsp13, &lcla[1].lcsp13);
}
static void d40_log_fill_lli(struct d40_log_lli *lli,