Lines Matching refs:sdmac
394 struct sdma_channel *sdmac; member
692 static int sdma_config_ownership(struct sdma_channel *sdmac, in sdma_config_ownership() argument
695 struct sdma_engine *sdma = sdmac->sdma; in sdma_config_ownership()
696 int channel = sdmac->channel; in sdma_config_ownership()
795 static void sdma_event_enable(struct sdma_channel *sdmac, unsigned int event) in sdma_event_enable() argument
797 struct sdma_engine *sdma = sdmac->sdma; in sdma_event_enable()
798 int channel = sdmac->channel; in sdma_event_enable()
807 if (sdmac->sw_done) { in sdma_event_enable()
815 static void sdma_event_disable(struct sdma_channel *sdmac, unsigned int event) in sdma_event_disable() argument
817 struct sdma_engine *sdma = sdmac->sdma; in sdma_event_disable()
818 int channel = sdmac->channel; in sdma_event_disable()
832 static void sdma_start_desc(struct sdma_channel *sdmac) in sdma_start_desc() argument
834 struct virt_dma_desc *vd = vchan_next_desc(&sdmac->vc); in sdma_start_desc()
836 struct sdma_engine *sdma = sdmac->sdma; in sdma_start_desc()
837 int channel = sdmac->channel; in sdma_start_desc()
840 sdmac->desc = NULL; in sdma_start_desc()
843 sdmac->desc = desc = to_sdma_desc(&vd->tx); in sdma_start_desc()
849 sdma_enable_channel(sdma, sdmac->channel); in sdma_start_desc()
852 static void sdma_update_channel_loop(struct sdma_channel *sdmac) in sdma_update_channel_loop() argument
856 enum dma_status old_status = sdmac->status; in sdma_update_channel_loop()
862 while (sdmac->desc) { in sdma_update_channel_loop()
863 struct sdma_desc *desc = sdmac->desc; in sdma_update_channel_loop()
872 sdmac->status = DMA_ERROR; in sdma_update_channel_loop()
892 spin_unlock(&sdmac->vc.lock); in sdma_update_channel_loop()
894 spin_lock(&sdmac->vc.lock); in sdma_update_channel_loop()
900 sdmac->status = old_status; in sdma_update_channel_loop()
907 if (sdmac->desc && !is_sdma_channel_enabled(sdmac->sdma, sdmac->channel)) { in sdma_update_channel_loop()
908 dev_warn(sdmac->sdma->dev, "restart cyclic channel %d\n", sdmac->channel); in sdma_update_channel_loop()
909 sdma_enable_channel(sdmac->sdma, sdmac->channel); in sdma_update_channel_loop()
915 struct sdma_channel *sdmac = (struct sdma_channel *) data; in mxc_sdma_handle_channel_normal() local
919 sdmac->desc->chn_real_count = 0; in mxc_sdma_handle_channel_normal()
924 for (i = 0; i < sdmac->desc->num_bd; i++) { in mxc_sdma_handle_channel_normal()
925 bd = &sdmac->desc->bd[i]; in mxc_sdma_handle_channel_normal()
929 sdmac->desc->chn_real_count += bd->mode.count; in mxc_sdma_handle_channel_normal()
933 sdmac->status = DMA_ERROR; in mxc_sdma_handle_channel_normal()
935 sdmac->status = DMA_COMPLETE; in mxc_sdma_handle_channel_normal()
950 struct sdma_channel *sdmac = &sdma->channel[channel]; in sdma_int_handler() local
953 spin_lock(&sdmac->vc.lock); in sdma_int_handler()
954 desc = sdmac->desc; in sdma_int_handler()
956 if (sdmac->flags & IMX_DMA_SG_LOOP) { in sdma_int_handler()
957 sdma_update_channel_loop(sdmac); in sdma_int_handler()
959 mxc_sdma_handle_channel_normal(sdmac); in sdma_int_handler()
961 sdma_start_desc(sdmac); in sdma_int_handler()
965 spin_unlock(&sdmac->vc.lock); in sdma_int_handler()
975 static int sdma_get_pc(struct sdma_channel *sdmac, in sdma_get_pc() argument
978 struct sdma_engine *sdma = sdmac->sdma; in sdma_get_pc()
986 sdmac->pc_from_device = 0; in sdma_get_pc()
987 sdmac->pc_to_device = 0; in sdma_get_pc()
988 sdmac->device_to_device = 0; in sdma_get_pc()
989 sdmac->pc_to_pc = 0; in sdma_get_pc()
990 sdmac->is_ram_script = false; in sdma_get_pc()
1020 if (sdmac->sdma->drvdata->ecspi_fixed) { in sdma_get_pc()
1024 sdmac->is_ram_script = true; in sdma_get_pc()
1037 sdmac->is_ram_script = true; in sdma_get_pc()
1052 sdmac->is_ram_script = true; in sdma_get_pc()
1083 sdmac->pc_from_device = per_2_emi; in sdma_get_pc()
1084 sdmac->pc_to_device = emi_2_per; in sdma_get_pc()
1085 sdmac->device_to_device = per_2_per; in sdma_get_pc()
1086 sdmac->pc_to_pc = emi_2_emi; in sdma_get_pc()
1091 static int sdma_load_context(struct sdma_channel *sdmac) in sdma_load_context() argument
1093 struct sdma_engine *sdma = sdmac->sdma; in sdma_load_context()
1094 int channel = sdmac->channel; in sdma_load_context()
1101 if (sdmac->direction == DMA_DEV_TO_MEM) in sdma_load_context()
1102 load_address = sdmac->pc_from_device; in sdma_load_context()
1103 else if (sdmac->direction == DMA_DEV_TO_DEV) in sdma_load_context()
1104 load_address = sdmac->device_to_device; in sdma_load_context()
1105 else if (sdmac->direction == DMA_MEM_TO_MEM) in sdma_load_context()
1106 load_address = sdmac->pc_to_pc; in sdma_load_context()
1108 load_address = sdmac->pc_to_device; in sdma_load_context()
1114 dev_dbg(sdma->dev, "wml = 0x%08x\n", (u32)sdmac->watermark_level); in sdma_load_context()
1115 dev_dbg(sdma->dev, "shp_addr = 0x%08x\n", sdmac->shp_addr); in sdma_load_context()
1116 dev_dbg(sdma->dev, "per_addr = 0x%08x\n", sdmac->per_addr); in sdma_load_context()
1117 dev_dbg(sdma->dev, "event_mask0 = 0x%08x\n", (u32)sdmac->event_mask[0]); in sdma_load_context()
1118 dev_dbg(sdma->dev, "event_mask1 = 0x%08x\n", (u32)sdmac->event_mask[1]); in sdma_load_context()
1128 context->gReg[0] = sdmac->event_mask[1]; in sdma_load_context()
1129 context->gReg[1] = sdmac->event_mask[0]; in sdma_load_context()
1130 context->gReg[2] = sdmac->per_addr; in sdma_load_context()
1131 context->gReg[6] = sdmac->shp_addr; in sdma_load_context()
1132 context->gReg[7] = sdmac->watermark_level; in sdma_load_context()
1153 struct sdma_channel *sdmac = to_sdma_chan(chan); in sdma_disable_channel() local
1154 struct sdma_engine *sdma = sdmac->sdma; in sdma_disable_channel()
1155 int channel = sdmac->channel; in sdma_disable_channel()
1158 sdmac->status = DMA_ERROR; in sdma_disable_channel()
1164 struct sdma_channel *sdmac = container_of(work, struct sdma_channel, in sdma_channel_terminate_work() local
1174 vchan_dma_desc_free_list(&sdmac->vc, &sdmac->terminated); in sdma_channel_terminate_work()
1179 struct sdma_channel *sdmac = to_sdma_chan(chan); in sdma_terminate_all() local
1182 spin_lock_irqsave(&sdmac->vc.lock, flags); in sdma_terminate_all()
1186 if (sdmac->desc) { in sdma_terminate_all()
1187 vchan_terminate_vdesc(&sdmac->desc->vd); in sdma_terminate_all()
1194 vchan_get_all_descriptors(&sdmac->vc, &sdmac->terminated); in sdma_terminate_all()
1195 sdmac->desc = NULL; in sdma_terminate_all()
1196 schedule_work(&sdmac->terminate_worker); in sdma_terminate_all()
1199 spin_unlock_irqrestore(&sdmac->vc.lock, flags); in sdma_terminate_all()
1206 struct sdma_channel *sdmac = to_sdma_chan(chan); in sdma_channel_synchronize() local
1208 vchan_synchronize(&sdmac->vc); in sdma_channel_synchronize()
1210 flush_work(&sdmac->terminate_worker); in sdma_channel_synchronize()
1213 static void sdma_set_watermarklevel_for_p2p(struct sdma_channel *sdmac) in sdma_set_watermarklevel_for_p2p() argument
1215 struct sdma_engine *sdma = sdmac->sdma; in sdma_set_watermarklevel_for_p2p()
1217 int lwml = sdmac->watermark_level & SDMA_WATERMARK_LEVEL_LWML; in sdma_set_watermarklevel_for_p2p()
1218 int hwml = (sdmac->watermark_level & SDMA_WATERMARK_LEVEL_HWML) >> 16; in sdma_set_watermarklevel_for_p2p()
1220 set_bit(sdmac->event_id0 % 32, &sdmac->event_mask[1]); in sdma_set_watermarklevel_for_p2p()
1221 set_bit(sdmac->event_id1 % 32, &sdmac->event_mask[0]); in sdma_set_watermarklevel_for_p2p()
1223 if (sdmac->event_id0 > 31) in sdma_set_watermarklevel_for_p2p()
1224 sdmac->watermark_level |= SDMA_WATERMARK_LEVEL_LWE; in sdma_set_watermarklevel_for_p2p()
1226 if (sdmac->event_id1 > 31) in sdma_set_watermarklevel_for_p2p()
1227 sdmac->watermark_level |= SDMA_WATERMARK_LEVEL_HWE; in sdma_set_watermarklevel_for_p2p()
1235 sdmac->watermark_level &= ~(SDMA_WATERMARK_LEVEL_LWML | in sdma_set_watermarklevel_for_p2p()
1237 sdmac->watermark_level |= hwml; in sdma_set_watermarklevel_for_p2p()
1238 sdmac->watermark_level |= lwml << 16; in sdma_set_watermarklevel_for_p2p()
1239 swap(sdmac->event_mask[0], sdmac->event_mask[1]); in sdma_set_watermarklevel_for_p2p()
1242 if (sdmac->per_address2 >= sdma->spba_start_addr && in sdma_set_watermarklevel_for_p2p()
1243 sdmac->per_address2 <= sdma->spba_end_addr) in sdma_set_watermarklevel_for_p2p()
1244 sdmac->watermark_level |= SDMA_WATERMARK_LEVEL_SP; in sdma_set_watermarklevel_for_p2p()
1246 if (sdmac->per_address >= sdma->spba_start_addr && in sdma_set_watermarklevel_for_p2p()
1247 sdmac->per_address <= sdma->spba_end_addr) in sdma_set_watermarklevel_for_p2p()
1248 sdmac->watermark_level |= SDMA_WATERMARK_LEVEL_DP; in sdma_set_watermarklevel_for_p2p()
1250 sdmac->watermark_level |= SDMA_WATERMARK_LEVEL_CONT; in sdma_set_watermarklevel_for_p2p()
1253 static void sdma_set_watermarklevel_for_sais(struct sdma_channel *sdmac) in sdma_set_watermarklevel_for_sais() argument
1259 if (sdmac->sw_done) in sdma_set_watermarklevel_for_sais()
1260 sdmac->watermark_level |= SDMA_WATERMARK_LEVEL_SW_DONE; in sdma_set_watermarklevel_for_sais()
1262 if (sdmac->direction == DMA_DEV_TO_MEM) { in sdma_set_watermarklevel_for_sais()
1263 n_fifos = sdmac->n_fifos_src; in sdma_set_watermarklevel_for_sais()
1264 stride_fifos = sdmac->stride_fifos_src; in sdma_set_watermarklevel_for_sais()
1266 n_fifos = sdmac->n_fifos_dst; in sdma_set_watermarklevel_for_sais()
1267 stride_fifos = sdmac->stride_fifos_dst; in sdma_set_watermarklevel_for_sais()
1270 words_per_fifo = sdmac->words_per_fifo; in sdma_set_watermarklevel_for_sais()
1272 sdmac->watermark_level |= in sdma_set_watermarklevel_for_sais()
1274 sdmac->watermark_level |= in sdma_set_watermarklevel_for_sais()
1277 sdmac->watermark_level |= in sdma_set_watermarklevel_for_sais()
1283 struct sdma_channel *sdmac = to_sdma_chan(chan); in sdma_config_channel() local
1288 sdmac->event_mask[0] = 0; in sdma_config_channel()
1289 sdmac->event_mask[1] = 0; in sdma_config_channel()
1290 sdmac->shp_addr = 0; in sdma_config_channel()
1291 sdmac->per_addr = 0; in sdma_config_channel()
1293 switch (sdmac->peripheral_type) { in sdma_config_channel()
1295 sdma_config_ownership(sdmac, false, true, true); in sdma_config_channel()
1298 sdma_config_ownership(sdmac, false, true, false); in sdma_config_channel()
1301 sdma_config_ownership(sdmac, true, true, false); in sdma_config_channel()
1305 ret = sdma_get_pc(sdmac, sdmac->peripheral_type); in sdma_config_channel()
1309 if ((sdmac->peripheral_type != IMX_DMATYPE_MEMORY) && in sdma_config_channel()
1310 (sdmac->peripheral_type != IMX_DMATYPE_DSP)) { in sdma_config_channel()
1312 if (sdmac->event_id1) { in sdma_config_channel()
1313 if (sdmac->peripheral_type == IMX_DMATYPE_ASRC_SP || in sdma_config_channel()
1314 sdmac->peripheral_type == IMX_DMATYPE_ASRC) in sdma_config_channel()
1315 sdma_set_watermarklevel_for_p2p(sdmac); in sdma_config_channel()
1317 if (sdmac->peripheral_type == in sdma_config_channel()
1319 sdma_set_watermarklevel_for_sais(sdmac); in sdma_config_channel()
1321 __set_bit(sdmac->event_id0, sdmac->event_mask); in sdma_config_channel()
1325 sdmac->shp_addr = sdmac->per_address; in sdma_config_channel()
1326 sdmac->per_addr = sdmac->per_address2; in sdma_config_channel()
1328 sdmac->watermark_level = 0; /* FIXME: M3_BASE_ADDRESS */ in sdma_config_channel()
1334 static int sdma_set_channel_priority(struct sdma_channel *sdmac, in sdma_set_channel_priority() argument
1337 struct sdma_engine *sdma = sdmac->sdma; in sdma_set_channel_priority()
1338 int channel = sdmac->channel; in sdma_set_channel_priority()
1377 desc->bd = dma_alloc_coherent(desc->sdmac->sdma->dev, bd_size, in sdma_alloc_bd()
1391 dma_free_coherent(desc->sdmac->sdma->dev, bd_size, desc->bd, in sdma_free_bd()
1405 struct sdma_channel *sdmac = to_sdma_chan(chan); in sdma_alloc_chan_resources() local
1420 dev_dbg(sdmac->sdma->dev, "MEMCPY in case?\n"); in sdma_alloc_chan_resources()
1427 ret = sdma_get_pc(sdmac, IMX_DMATYPE_MEMORY); in sdma_alloc_chan_resources()
1445 sdmac->peripheral_type = data->peripheral_type; in sdma_alloc_chan_resources()
1446 sdmac->event_id0 = data->dma_request; in sdma_alloc_chan_resources()
1447 sdmac->event_id1 = data->dma_request2; in sdma_alloc_chan_resources()
1449 ret = clk_enable(sdmac->sdma->clk_ipg); in sdma_alloc_chan_resources()
1452 ret = clk_enable(sdmac->sdma->clk_ahb); in sdma_alloc_chan_resources()
1456 ret = sdma_set_channel_priority(sdmac, prio); in sdma_alloc_chan_resources()
1463 clk_disable(sdmac->sdma->clk_ahb); in sdma_alloc_chan_resources()
1465 clk_disable(sdmac->sdma->clk_ipg); in sdma_alloc_chan_resources()
1471 struct sdma_channel *sdmac = to_sdma_chan(chan); in sdma_free_chan_resources() local
1472 struct sdma_engine *sdma = sdmac->sdma; in sdma_free_chan_resources()
1478 sdma_event_disable(sdmac, sdmac->event_id0); in sdma_free_chan_resources()
1479 if (sdmac->event_id1) in sdma_free_chan_resources()
1480 sdma_event_disable(sdmac, sdmac->event_id1); in sdma_free_chan_resources()
1482 sdmac->event_id0 = 0; in sdma_free_chan_resources()
1483 sdmac->event_id1 = 0; in sdma_free_chan_resources()
1485 sdma_set_channel_priority(sdmac, 0); in sdma_free_chan_resources()
1491 static struct sdma_desc *sdma_transfer_init(struct sdma_channel *sdmac, in sdma_transfer_init() argument
1496 if (!sdmac->sdma->fw_loaded && sdmac->is_ram_script) { in sdma_transfer_init()
1497 dev_warn_once(sdmac->sdma->dev, "sdma firmware not ready!\n"); in sdma_transfer_init()
1505 sdmac->status = DMA_IN_PROGRESS; in sdma_transfer_init()
1506 sdmac->direction = direction; in sdma_transfer_init()
1507 sdmac->flags = 0; in sdma_transfer_init()
1513 desc->sdmac = sdmac; in sdma_transfer_init()
1521 sdma_config_ownership(sdmac, false, true, false); in sdma_transfer_init()
1523 if (sdma_load_context(sdmac)) in sdma_transfer_init()
1538 struct sdma_channel *sdmac = to_sdma_chan(chan); in sdma_prep_memcpy() local
1539 struct sdma_engine *sdma = sdmac->sdma; in sdma_prep_memcpy()
1540 int channel = sdmac->channel; in sdma_prep_memcpy()
1552 desc = sdma_transfer_init(sdmac, DMA_MEM_TO_MEM, in sdma_prep_memcpy()
1587 return vchan_tx_prep(&sdmac->vc, &desc->vd, flags); in sdma_prep_memcpy()
1595 struct sdma_channel *sdmac = to_sdma_chan(chan); in sdma_prep_slave_sg() local
1596 struct sdma_engine *sdma = sdmac->sdma; in sdma_prep_slave_sg()
1598 int channel = sdmac->channel; in sdma_prep_slave_sg()
1602 sdma_config_write(chan, &sdmac->slave_config, direction); in sdma_prep_slave_sg()
1604 desc = sdma_transfer_init(sdmac, direction, sg_len); in sdma_prep_slave_sg()
1628 if (sdmac->word_size > DMA_SLAVE_BUSWIDTH_4_BYTES) in sdma_prep_slave_sg()
1631 switch (sdmac->word_size) { in sdma_prep_slave_sg()
1665 return vchan_tx_prep(&sdmac->vc, &desc->vd, flags); in sdma_prep_slave_sg()
1670 sdmac->status = DMA_ERROR; in sdma_prep_slave_sg()
1679 struct sdma_channel *sdmac = to_sdma_chan(chan); in sdma_prep_dma_cyclic() local
1680 struct sdma_engine *sdma = sdmac->sdma; in sdma_prep_dma_cyclic()
1682 int channel = sdmac->channel; in sdma_prep_dma_cyclic()
1688 sdma_config_write(chan, &sdmac->slave_config, direction); in sdma_prep_dma_cyclic()
1690 desc = sdma_transfer_init(sdmac, direction, num_periods); in sdma_prep_dma_cyclic()
1696 sdmac->flags |= IMX_DMA_SG_LOOP; in sdma_prep_dma_cyclic()
1712 if (sdmac->word_size > DMA_SLAVE_BUSWIDTH_4_BYTES) in sdma_prep_dma_cyclic()
1714 if (sdmac->word_size == DMA_SLAVE_BUSWIDTH_4_BYTES) in sdma_prep_dma_cyclic()
1717 bd->mode.command = sdmac->word_size; in sdma_prep_dma_cyclic()
1736 return vchan_tx_prep(&sdmac->vc, &desc->vd, flags); in sdma_prep_dma_cyclic()
1741 sdmac->status = DMA_ERROR; in sdma_prep_dma_cyclic()
1749 struct sdma_channel *sdmac = to_sdma_chan(chan); in sdma_config_write() local
1752 sdmac->per_address = dmaengine_cfg->src_addr; in sdma_config_write()
1753 sdmac->watermark_level = dmaengine_cfg->src_maxburst * in sdma_config_write()
1755 sdmac->word_size = dmaengine_cfg->src_addr_width; in sdma_config_write()
1757 sdmac->per_address2 = dmaengine_cfg->src_addr; in sdma_config_write()
1758 sdmac->per_address = dmaengine_cfg->dst_addr; in sdma_config_write()
1759 sdmac->watermark_level = dmaengine_cfg->src_maxburst & in sdma_config_write()
1761 sdmac->watermark_level |= (dmaengine_cfg->dst_maxburst << 16) & in sdma_config_write()
1763 sdmac->word_size = dmaengine_cfg->dst_addr_width; in sdma_config_write()
1765 sdmac->per_address = dmaengine_cfg->dst_addr; in sdma_config_write()
1766 sdmac->watermark_level = dmaengine_cfg->dst_maxburst * in sdma_config_write()
1768 sdmac->word_size = dmaengine_cfg->dst_addr_width; in sdma_config_write()
1770 sdmac->direction = direction; in sdma_config_write()
1777 struct sdma_channel *sdmac = to_sdma_chan(chan); in sdma_config() local
1778 struct sdma_engine *sdma = sdmac->sdma; in sdma_config()
1780 memcpy(&sdmac->slave_config, dmaengine_cfg, sizeof(*dmaengine_cfg)); in sdma_config()
1790 sdmac->n_fifos_src = sdmacfg->n_fifos_src; in sdma_config()
1791 sdmac->n_fifos_dst = sdmacfg->n_fifos_dst; in sdma_config()
1792 sdmac->stride_fifos_src = sdmacfg->stride_fifos_src; in sdma_config()
1793 sdmac->stride_fifos_dst = sdmacfg->stride_fifos_dst; in sdma_config()
1794 sdmac->words_per_fifo = sdmacfg->words_per_fifo; in sdma_config()
1795 sdmac->sw_done = sdmacfg->sw_done; in sdma_config()
1799 if (sdmac->event_id0 >= sdmac->sdma->drvdata->num_events) in sdma_config()
1801 sdma_event_enable(sdmac, sdmac->event_id0); in sdma_config()
1803 if (sdmac->event_id1) { in sdma_config()
1804 if (sdmac->event_id1 >= sdmac->sdma->drvdata->num_events) in sdma_config()
1806 sdma_event_enable(sdmac, sdmac->event_id1); in sdma_config()
1816 struct sdma_channel *sdmac = to_sdma_chan(chan); in sdma_tx_status() local
1827 spin_lock_irqsave(&sdmac->vc.lock, flags); in sdma_tx_status()
1829 vd = vchan_find_desc(&sdmac->vc, cookie); in sdma_tx_status()
1832 else if (sdmac->desc && sdmac->desc->vd.tx.cookie == cookie) in sdma_tx_status()
1833 desc = sdmac->desc; in sdma_tx_status()
1836 if (sdmac->flags & IMX_DMA_SG_LOOP) in sdma_tx_status()
1845 spin_unlock_irqrestore(&sdmac->vc.lock, flags); in sdma_tx_status()
1850 return sdmac->status; in sdma_tx_status()
1855 struct sdma_channel *sdmac = to_sdma_chan(chan); in sdma_issue_pending() local
1858 spin_lock_irqsave(&sdmac->vc.lock, flags); in sdma_issue_pending()
1859 if (vchan_issue_pending(&sdmac->vc) && !sdmac->desc) in sdma_issue_pending()
1860 sdma_start_desc(sdmac); in sdma_issue_pending()
1861 spin_unlock_irqrestore(&sdmac->vc.lock, flags); in sdma_issue_pending()
2125 struct sdma_channel *sdmac = to_sdma_chan(chan); in sdma_filter_fn() local
2131 sdmac->data = *data; in sdma_filter_fn()
2132 chan->private = &sdmac->data; in sdma_filter_fn()
2239 struct sdma_channel *sdmac = &sdma->channel[i]; in sdma_probe() local
2241 sdmac->sdma = sdma; in sdma_probe()
2243 sdmac->channel = i; in sdma_probe()
2244 sdmac->vc.desc_free = sdma_desc_free; in sdma_probe()
2245 INIT_LIST_HEAD(&sdmac->terminated); in sdma_probe()
2246 INIT_WORK(&sdmac->terminate_worker, in sdma_probe()
2254 vchan_init(&sdmac->vc, &sdma->dma_device); in sdma_probe()
2351 struct sdma_channel *sdmac = &sdma->channel[i]; in sdma_remove() local
2353 tasklet_kill(&sdmac->vc.task); in sdma_remove()
2354 sdma_free_chan_resources(&sdmac->vc.chan); in sdma_remove()