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| author | Peter Ujfalusi <peter.ujfalusi@ti.com> | 2014-05-16 15:17:10 +0300 |
|---|---|---|
| committer | Sekhar Nori <nsekhar@ti.com> | 2014-05-22 10:47:46 +0530 |
| commit | c3dd3389dbed93d5675205cc25ff7be67a738573 (patch) | |
| tree | 06a69e9b16cfd505b5c68256cf052fbef6d4dafe /arch/arm/common | |
| parent | cf4afc3d2b6e11e507692c422eaf2b2e691e00d7 (diff) | |
| download | linux-c3dd3389dbed93d5675205cc25ff7be67a738573.tar.gz linux-c3dd3389dbed93d5675205cc25ff7be67a738573.tar.bz2 linux-c3dd3389dbed93d5675205cc25ff7be67a738573.zip | |
ARM: edma: Do not change TC -> Queue mapping, leave it to default.
There is no need to change the default TC -> Queue mapping. By default the
mapping is: TC0 -> Q0, TC1 -> Q1, etc.
Changing this has no benefits at all and all the board files are just setting
the same mapping back to the HW.
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
Diffstat (limited to 'arch/arm/common')
| -rw-r--r-- | arch/arm/common/edma.c | 28 |
1 files changed, 1 insertions, 27 deletions
diff --git a/arch/arm/common/edma.c b/arch/arm/common/edma.c index fde56e2ba203..4df5d443b0b3 100644 --- a/arch/arm/common/edma.c +++ b/arch/arm/common/edma.c @@ -290,12 +290,6 @@ static void map_dmach_queue(unsigned ctlr, unsigned ch_no, ~(0x7 << bit), queue_no << bit); } -static void __init map_queue_tc(unsigned ctlr, int queue_no, int tc_no) -{ - int bit = queue_no * 4; - edma_modify(ctlr, EDMA_QUETCMAP, ~(0x7 << bit), ((tc_no & 0x7) << bit)); -} - static void __init assign_priority_to_queue(unsigned ctlr, int queue_no, int priority) { @@ -1488,7 +1482,7 @@ static int edma_of_parse_dt(struct device *dev, struct property *prop; size_t sz; struct edma_rsv_info *rsv_info; - s8 (*queue_tc_map)[2], (*queue_priority_map)[2]; + s8 (*queue_priority_map)[2]; ret = of_property_read_u32(node, "dma-channels", &value); if (ret < 0) @@ -1513,19 +1507,6 @@ static int edma_of_parse_dt(struct device *dev, return -ENOMEM; pdata->rsv = rsv_info; - queue_tc_map = devm_kzalloc(dev, 8*sizeof(s8), GFP_KERNEL); - if (!queue_tc_map) - return -ENOMEM; - - for (i = 0; i < 3; i++) { - queue_tc_map[i][0] = i; - queue_tc_map[i][1] = i; - } - queue_tc_map[i][0] = -1; - queue_tc_map[i][1] = -1; - - pdata->queue_tc_mapping = queue_tc_map; - queue_priority_map = devm_kzalloc(dev, 8*sizeof(s8), GFP_KERNEL); if (!queue_priority_map) return -ENOMEM; @@ -1586,7 +1567,6 @@ static int edma_probe(struct platform_device *pdev) struct edma_soc_info **info = pdev->dev.platform_data; struct edma_soc_info *ninfo[EDMA_MAX_CC] = {NULL}; s8 (*queue_priority_mapping)[2]; - s8 (*queue_tc_mapping)[2]; int i, j, off, ln, found = 0; int status = -1; const s16 (*rsv_chans)[2]; @@ -1753,14 +1733,8 @@ static int edma_probe(struct platform_device *pdev) for (i = 0; i < edma_cc[j]->num_channels; i++) map_dmach_queue(j, i, info[j]->default_queue); - queue_tc_mapping = info[j]->queue_tc_mapping; queue_priority_mapping = info[j]->queue_priority_mapping; - /* Event queue to TC mapping */ - for (i = 0; queue_tc_mapping[i][0] != -1; i++) - map_queue_tc(j, queue_tc_mapping[i][0], - queue_tc_mapping[i][1]); - /* Event queue priority mapping */ for (i = 0; queue_priority_mapping[i][0] != -1; i++) assign_priority_to_queue(j, |