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DMAENGINE: ste_dma40: config checks
Added various configuration checks. Signed-off-by: Jonas Aaberg <jonas.aberg@stericsson.com> Signed-off-by: Linus Walleij <linus.walleij@stericsson.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
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parent
b30a3f6257
commit
0747c7bae5
2 changed files with 28 additions and 3 deletions
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@ -98,7 +98,7 @@ struct stedma40_half_channel_info {
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};
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enum stedma40_xfer_dir {
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STEDMA40_MEM_TO_MEM,
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STEDMA40_MEM_TO_MEM = 1,
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STEDMA40_MEM_TO_PERIPH,
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STEDMA40_PERIPH_TO_MEM,
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STEDMA40_PERIPH_TO_PERIPH
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@ -981,14 +981,39 @@ static int d40_validate_conf(struct d40_chan *d40c,
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bool is_log = (conf->channel_type & STEDMA40_CHANNEL_IN_OPER_MODE)
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== STEDMA40_CHANNEL_IN_LOG_MODE;
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if (d40c->dma_cfg.dir == STEDMA40_MEM_TO_PERIPH &&
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if (!conf->dir) {
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dev_err(&d40c->chan.dev->device, "[%s] Invalid direction.\n",
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__func__);
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res = -EINVAL;
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}
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if (conf->dst_dev_type != STEDMA40_DEV_DST_MEMORY &&
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d40c->base->plat_data->dev_tx[conf->dst_dev_type] == 0 &&
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d40c->runtime_addr == 0) {
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dev_err(&d40c->chan.dev->device,
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"[%s] Invalid TX channel address (%d)\n",
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__func__, conf->dst_dev_type);
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res = -EINVAL;
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}
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if (conf->src_dev_type != STEDMA40_DEV_SRC_MEMORY &&
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d40c->base->plat_data->dev_rx[conf->src_dev_type] == 0 &&
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d40c->runtime_addr == 0) {
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dev_err(&d40c->chan.dev->device,
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"[%s] Invalid RX channel address (%d)\n",
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__func__, conf->src_dev_type);
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res = -EINVAL;
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}
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if (conf->dir == STEDMA40_MEM_TO_PERIPH &&
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dst_event_group == STEDMA40_DEV_DST_MEMORY) {
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dev_err(&d40c->chan.dev->device, "[%s] Invalid dst\n",
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__func__);
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res = -EINVAL;
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}
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if (d40c->dma_cfg.dir == STEDMA40_PERIPH_TO_MEM &&
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if (conf->dir == STEDMA40_PERIPH_TO_MEM &&
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src_event_group == STEDMA40_DEV_SRC_MEMORY) {
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dev_err(&d40c->chan.dev->device, "[%s] Invalid src\n",
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__func__);
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