diff options
Diffstat (limited to 'drivers/dma')
-rw-r--r-- | drivers/dma/coh901318.c | 30 | ||||
-rw-r--r-- | drivers/dma/cppi41.c | 3 | ||||
-rw-r--r-- | drivers/dma/dma-jz4740.c | 14 | ||||
-rw-r--r-- | drivers/dma/edma.c | 21 | ||||
-rw-r--r-- | drivers/dma/fsl-edma.c | 24 | ||||
-rw-r--r-- | drivers/dma/fsl_raid.c | 9 | ||||
-rw-r--r-- | drivers/dma/imx-dma.c | 31 | ||||
-rw-r--r-- | drivers/dma/imx-sdma.c | 9 | ||||
-rw-r--r-- | drivers/dma/ioat/init.c | 2 | ||||
-rw-r--r-- | drivers/dma/k3dma.c | 5 | ||||
-rw-r--r-- | drivers/dma/mmp_pdma.c | 19 | ||||
-rw-r--r-- | drivers/dma/mmp_tdma.c | 4 | ||||
-rw-r--r-- | drivers/dma/moxart-dma.c | 4 | ||||
-rw-r--r-- | drivers/dma/mpc512x_dma.c | 1 | ||||
-rw-r--r-- | drivers/dma/nbpfaxi.c | 13 | ||||
-rw-r--r-- | drivers/dma/omap-dma.c | 4 | ||||
-rw-r--r-- | drivers/dma/pl330.c | 6 | ||||
-rw-r--r-- | drivers/dma/pxa_dma.c | 16 | ||||
-rw-r--r-- | drivers/dma/qcom/hidma.c | 1 | ||||
-rw-r--r-- | drivers/dma/qcom/hidma_ll.c | 1 | ||||
-rw-r--r-- | drivers/dma/s3c24xx-dma.c | 18 | ||||
-rw-r--r-- | drivers/dma/sirf-dma.c | 1 | ||||
-rw-r--r-- | drivers/dma/txx9dmac.c | 9 |
23 files changed, 222 insertions, 23 deletions
diff --git a/drivers/dma/coh901318.c b/drivers/dma/coh901318.c index c1006165cea8..e4acd63e42aa 100644 --- a/drivers/dma/coh901318.c +++ b/drivers/dma/coh901318.c @@ -266,7 +266,7 @@ static int dma_memcpy_channels[] = { COH901318_CX_CTRL_DDMA_LEGACY | \ COH901318_CX_CTRL_PRDD_SOURCE) -const struct coh_dma_channel chan_config[U300_DMA_CHANNELS] = { +static const struct coh_dma_channel chan_config[U300_DMA_CHANNELS] = { { .number = U300_DMA_MSL_TX_0, .name = "MSL TX 0", @@ -1280,6 +1280,7 @@ struct coh901318_desc { struct coh901318_base { struct device *dev; void __iomem *virtbase; + unsigned int irq; struct coh901318_pool pool; struct powersave pm; struct dma_device dma_slave; @@ -1364,7 +1365,6 @@ static int coh901318_debugfs_read(struct file *file, char __user *buf, } static const struct file_operations coh901318_debugfs_status_operations = { - .owner = THIS_MODULE, .open = simple_open, .read = coh901318_debugfs_read, .llseek = default_llseek, @@ -2680,6 +2680,8 @@ static int __init coh901318_probe(struct platform_device *pdev) if (err) return err; + base->irq = irq; + err = coh901318_pool_create(&base->pool, &pdev->dev, sizeof(struct coh901318_lli), 32); @@ -2755,11 +2757,31 @@ static int __init coh901318_probe(struct platform_device *pdev) coh901318_pool_destroy(&base->pool); return err; } +static void coh901318_base_remove(struct coh901318_base *base, const int *pick_chans) +{ + int chans_i; + int i = 0; + struct coh901318_chan *cohc; + + for (chans_i = 0; pick_chans[chans_i] != -1; chans_i += 2) { + for (i = pick_chans[chans_i]; i <= pick_chans[chans_i+1]; i++) { + cohc = &base->chans[i]; + + tasklet_kill(&cohc->tasklet); + } + } + +} static int coh901318_remove(struct platform_device *pdev) { struct coh901318_base *base = platform_get_drvdata(pdev); + devm_free_irq(&pdev->dev, base->irq, base); + + coh901318_base_remove(base, dma_slave_channels); + coh901318_base_remove(base, dma_memcpy_channels); + of_dma_controller_free(pdev->dev.of_node); dma_async_device_unregister(&base->dma_memcpy); dma_async_device_unregister(&base->dma_slave); @@ -2780,13 +2802,13 @@ static struct platform_driver coh901318_driver = { }, }; -int __init coh901318_init(void) +static int __init coh901318_init(void) { return platform_driver_probe(&coh901318_driver, coh901318_probe); } subsys_initcall(coh901318_init); -void __exit coh901318_exit(void) +static void __exit coh901318_exit(void) { platform_driver_unregister(&coh901318_driver); } diff --git a/drivers/dma/cppi41.c b/drivers/dma/cppi41.c index ceedafbd23e0..4b2317426c8e 100644 --- a/drivers/dma/cppi41.c +++ b/drivers/dma/cppi41.c @@ -497,16 +497,13 @@ static struct dma_async_tx_descriptor *cppi41_dma_prep_slave_sg( struct cppi41_desc *d; struct scatterlist *sg; unsigned int i; - unsigned int num; - num = 0; d = c->desc; for_each_sg(sgl, sg, sg_len, i) { u32 addr; u32 len; /* We need to use more than one desc once musb supports sg */ - BUG_ON(num > 0); addr = lower_32_bits(sg_dma_address(sg)); len = sg_dma_len(sg); diff --git a/drivers/dma/dma-jz4740.c b/drivers/dma/dma-jz4740.c index 7638b24ce8d0..9689b36c005a 100644 --- a/drivers/dma/dma-jz4740.c +++ b/drivers/dma/dma-jz4740.c @@ -573,12 +573,26 @@ err_unregister: return ret; } +static void jz4740_cleanup_vchan(struct dma_device *dmadev) +{ + struct jz4740_dmaengine_chan *chan, *_chan; + + list_for_each_entry_safe(chan, _chan, + &dmadev->channels, vchan.chan.device_node) { + list_del(&chan->vchan.chan.device_node); + tasklet_kill(&chan->vchan.task); + } +} + + static int jz4740_dma_remove(struct platform_device *pdev) { struct jz4740_dma_dev *dmadev = platform_get_drvdata(pdev); int irq = platform_get_irq(pdev, 0); free_irq(irq, dmadev); + + jz4740_cleanup_vchan(&dmadev->ddev); dma_async_device_unregister(&dmadev->ddev); clk_disable_unprepare(dmadev->clk); diff --git a/drivers/dma/edma.c b/drivers/dma/edma.c index b95ef7482c52..3d277fa76c1a 100644 --- a/drivers/dma/edma.c +++ b/drivers/dma/edma.c @@ -239,6 +239,9 @@ struct edma_cc { bool chmap_exist; enum dma_event_q default_queue; + unsigned int ccint; + unsigned int ccerrint; + /* * The slot_inuse bit for each PaRAM slot is clear unless the slot is * in use by Linux or if it is allocated to be used by DSP. @@ -2283,6 +2286,7 @@ static int edma_probe(struct platform_device *pdev) dev_err(dev, "CCINT (%d) failed --> %d\n", irq, ret); return ret; } + ecc->ccint = irq; } irq = platform_get_irq_byname(pdev, "edma3_ccerrint"); @@ -2298,6 +2302,7 @@ static int edma_probe(struct platform_device *pdev) dev_err(dev, "CCERRINT (%d) failed --> %d\n", irq, ret); return ret; } + ecc->ccerrint = irq; } ecc->dummy_slot = edma_alloc_slot(ecc, EDMA_SLOT_ANY); @@ -2388,11 +2393,27 @@ err_reg1: return ret; } +static void edma_cleanupp_vchan(struct dma_device *dmadev) +{ + struct edma_chan *echan, *_echan; + + list_for_each_entry_safe(echan, _echan, + &dmadev->channels, vchan.chan.device_node) { + list_del(&echan->vchan.chan.device_node); + tasklet_kill(&echan->vchan.task); + } +} + static int edma_remove(struct platform_device *pdev) { struct device *dev = &pdev->dev; struct edma_cc *ecc = dev_get_drvdata(dev); + devm_free_irq(dev, ecc->ccint, ecc); + devm_free_irq(dev, ecc->ccerrint, ecc); + + edma_cleanupp_vchan(&ecc->dma_slave); + if (dev->of_node) of_dma_controller_free(dev->of_node); dma_async_device_unregister(&ecc->dma_slave); diff --git a/drivers/dma/fsl-edma.c b/drivers/dma/fsl-edma.c index cc06eeaef1a7..6775f2c74e25 100644 --- a/drivers/dma/fsl-edma.c +++ b/drivers/dma/fsl-edma.c @@ -852,6 +852,17 @@ fsl_edma_irq_init(struct platform_device *pdev, struct fsl_edma_engine *fsl_edma return 0; } +static void fsl_edma_irq_exit( + struct platform_device *pdev, struct fsl_edma_engine *fsl_edma) +{ + if (fsl_edma->txirq == fsl_edma->errirq) { + devm_free_irq(&pdev->dev, fsl_edma->txirq, fsl_edma); + } else { + devm_free_irq(&pdev->dev, fsl_edma->txirq, fsl_edma); + devm_free_irq(&pdev->dev, fsl_edma->errirq, fsl_edma); + } +} + static void fsl_disable_clocks(struct fsl_edma_engine *fsl_edma) { int i; @@ -984,11 +995,24 @@ static int fsl_edma_probe(struct platform_device *pdev) return 0; } +static void fsl_edma_cleanup_vchan(struct dma_device *dmadev) +{ + struct fsl_edma_chan *chan, *_chan; + + list_for_each_entry_safe(chan, _chan, + &dmadev->channels, vchan.chan.device_node) { + list_del(&chan->vchan.chan.device_node); + tasklet_kill(&chan->vchan.task); + } +} + static int fsl_edma_remove(struct platform_device *pdev) { struct device_node *np = pdev->dev.of_node; struct fsl_edma_engine *fsl_edma = platform_get_drvdata(pdev); + fsl_edma_irq_exit(pdev, fsl_edma); + fsl_edma_cleanup_vchan(&fsl_edma->dma_dev); of_dma_controller_free(np); dma_async_device_unregister(&fsl_edma->dma_dev); fsl_disable_clocks(fsl_edma); diff --git a/drivers/dma/fsl_raid.c b/drivers/dma/fsl_raid.c index 4d9470f16552..aad167eaaee8 100644 --- a/drivers/dma/fsl_raid.c +++ b/drivers/dma/fsl_raid.c @@ -337,7 +337,7 @@ static struct dma_async_tx_descriptor *fsl_re_prep_dma_genq( re_chan = container_of(chan, struct fsl_re_chan, chan); if (len > FSL_RE_MAX_DATA_LEN) { - dev_err(re_chan->dev, "genq tx length %lu, max length %d\n", + dev_err(re_chan->dev, "genq tx length %zu, max length %d\n", len, FSL_RE_MAX_DATA_LEN); return NULL; } @@ -424,7 +424,7 @@ static struct dma_async_tx_descriptor *fsl_re_prep_dma_pq( re_chan = container_of(chan, struct fsl_re_chan, chan); if (len > FSL_RE_MAX_DATA_LEN) { - dev_err(re_chan->dev, "pq tx length is %lu, max length is %d\n", + dev_err(re_chan->dev, "pq tx length is %zu, max length is %d\n", len, FSL_RE_MAX_DATA_LEN); return NULL; } @@ -545,7 +545,7 @@ static struct dma_async_tx_descriptor *fsl_re_prep_dma_memcpy( re_chan = container_of(chan, struct fsl_re_chan, chan); if (len > FSL_RE_MAX_DATA_LEN) { - dev_err(re_chan->dev, "cp tx length is %lu, max length is %d\n", + dev_err(re_chan->dev, "cp tx length is %zu, max length is %d\n", len, FSL_RE_MAX_DATA_LEN); return NULL; } @@ -856,6 +856,8 @@ static int fsl_re_probe(struct platform_device *ofdev) static void fsl_re_remove_chan(struct fsl_re_chan *chan) { + tasklet_kill(&chan->irqtask); + dma_pool_free(chan->re_dev->hw_desc_pool, chan->inb_ring_virt_addr, chan->inb_phys_addr); @@ -890,7 +892,6 @@ static struct of_device_id fsl_re_ids[] = { static struct platform_driver fsl_re_driver = { .driver = { .name = "fsl-raideng", - .owner = THIS_MODULE, .of_match_table = fsl_re_ids, }, .probe = fsl_re_probe, diff --git a/drivers/dma/imx-dma.c b/drivers/dma/imx-dma.c index 48d85f8b95fe..a960608c0a4d 100644 --- a/drivers/dma/imx-dma.c +++ b/drivers/dma/imx-dma.c @@ -167,6 +167,7 @@ struct imxdma_channel { u32 ccr_to_device; bool enabled_2d; int slot_2d; + unsigned int irq; }; enum imx_dma_type { @@ -186,6 +187,9 @@ struct imxdma_engine { struct imx_dma_2d_config slots_2d[IMX_DMA_2D_SLOTS]; struct imxdma_channel channel[IMX_DMA_CHANNELS]; enum imx_dma_type devtype; + unsigned int irq; + unsigned int irq_err; + }; struct imxdma_filter_data { @@ -1048,7 +1052,7 @@ static struct dma_chan *imxdma_xlate(struct of_phandle_args *dma_spec, } static int __init imxdma_probe(struct platform_device *pdev) - { +{ struct imxdma_engine *imxdma; struct resource *res; const struct of_device_id *of_id; @@ -1100,6 +1104,7 @@ static int __init imxdma_probe(struct platform_device *pdev) dev_warn(imxdma->dev, "Can't register IRQ for DMA\n"); goto disable_dma_ahb_clk; } + imxdma->irq = irq; irq_err = platform_get_irq(pdev, 1); if (irq_err < 0) { @@ -1113,6 +1118,7 @@ static int __init imxdma_probe(struct platform_device *pdev) dev_warn(imxdma->dev, "Can't register ERRIRQ for DMA\n"); goto disable_dma_ahb_clk; } + imxdma->irq_err = irq_err; } /* enable DMA module */ @@ -1150,6 +1156,8 @@ static int __init imxdma_probe(struct platform_device *pdev) irq + i, i); goto disable_dma_ahb_clk; } + + imxdmac->irq = irq + i; init_timer(&imxdmac->watchdog); imxdmac->watchdog.function = &imxdma_watchdog; imxdmac->watchdog.data = (unsigned long)imxdmac; @@ -1217,10 +1225,31 @@ disable_dma_ipg_clk: return ret; } +static void imxdma_free_irq(struct platform_device *pdev, struct imxdma_engine *imxdma) +{ + int i; + + if (is_imx1_dma(imxdma)) { + disable_irq(imxdma->irq); + disable_irq(imxdma->irq_err); + } + + for (i = 0; i < IMX_DMA_CHANNELS; i++) { + struct imxdma_channel *imxdmac = &imxdma->channel[i]; + + if (!is_imx1_dma(imxdma)) + disable_irq(imxdmac->irq); + + tasklet_kill(&imxdmac->dma_tasklet); + } +} + static int imxdma_remove(struct platform_device *pdev) { struct imxdma_engine *imxdma = platform_get_drvdata(pdev); + imxdma_free_irq(pdev, imxdma); + dma_async_device_unregister(&imxdma->dma_device); if (pdev->dev.of_node) diff --git a/drivers/dma/imx-sdma.c b/drivers/dma/imx-sdma.c index ce865f68a8c7..03ec76fc22ff 100644 --- a/drivers/dma/imx-sdma.c +++ b/drivers/dma/imx-sdma.c @@ -386,6 +386,7 @@ struct sdma_engine { const struct sdma_driver_data *drvdata; u32 spba_start_addr; u32 spba_end_addr; + unsigned int irq; }; static struct sdma_driver_data sdma_imx31 = { @@ -751,7 +752,7 @@ static void sdma_get_pc(struct sdma_channel *sdmac, * These are needed once we start to support transfers between * two peripherals or memory-to-memory transfers */ - int per_2_per = 0, emi_2_emi = 0; + int per_2_per = 0; sdmac->pc_from_device = 0; sdmac->pc_to_device = 0; @@ -759,7 +760,6 @@ static void sdma_get_pc(struct sdma_channel *sdmac, switch (peripheral_type) { case IMX_DMATYPE_MEMORY: - emi_2_emi = sdma->script_addrs->ap_2_ap_addr; break; case IMX_DMATYPE_DSP: emi_2_per = sdma->script_addrs->bp_2_ap_addr; @@ -992,8 +992,6 @@ static int sdma_config_channel(struct dma_chan *chan) } else __set_bit(sdmac->event_id0, sdmac->event_mask); - /* Watermark Level */ - sdmac->watermark_level |= sdmac->watermark_level; /* Address */ sdmac->shp_addr = sdmac->per_address; sdmac->per_addr = sdmac->per_address2; @@ -1708,6 +1706,8 @@ static int sdma_probe(struct platform_device *pdev) if (ret) return ret; + sdma->irq = irq; + sdma->script_addrs = kzalloc(sizeof(*sdma->script_addrs), GFP_KERNEL); if (!sdma->script_addrs) return -ENOMEM; @@ -1833,6 +1833,7 @@ static int sdma_remove(struct platform_device *pdev) struct sdma_engine *sdma = platform_get_drvdata(pdev); int i; + devm_free_irq(&pdev->dev, sdma->irq, sdma); dma_async_device_unregister(&sdma->dma_device); kfree(sdma->script_addrs); /* Kill the tasklet */ diff --git a/drivers/dma/ioat/init.c b/drivers/dma/ioat/init.c index d406056e8892..7145f7716a92 100644 --- a/drivers/dma/ioat/init.c +++ b/drivers/dma/ioat/init.c @@ -1212,7 +1212,7 @@ static void ioat_shutdown(struct pci_dev *pdev) ioat_disable_interrupts(ioat_dma); } -void ioat_resume(struct ioatdma_device *ioat_dma) +static void ioat_resume(struct ioatdma_device *ioat_dma) { struct ioatdma_chan *ioat_chan; u32 chanerr; diff --git a/drivers/dma/k3dma.c b/drivers/dma/k3dma.c index 563affd5cd06..39de8980128c 100644 --- a/drivers/dma/k3dma.c +++ b/drivers/dma/k3dma.c @@ -102,6 +102,7 @@ struct k3_dma_dev { struct clk *clk; u32 dma_channels; u32 dma_requests; + unsigned int irq; }; #define to_k3_dma(dmadev) container_of(dmadev, struct k3_dma_dev, slave) @@ -703,6 +704,8 @@ static int k3_dma_probe(struct platform_device *op) if (ret) return ret; + d->irq = irq; + /* init phy channel */ d->phy = devm_kzalloc(&op->dev, d->dma_channels * sizeof(struct k3_dma_phy), GFP_KERNEL); @@ -787,6 +790,8 @@ static int k3_dma_remove(struct platform_device *op) dma_async_device_unregister(&d->slave); of_dma_controller_free((&op->dev)->of_node); + devm_free_irq(&op->dev, d->irq, d); + list_for_each_entry_safe(c, cn, &d->slave.channels, vc.chan.device_node) { list_del(&c->vc.chan.device_node); tasklet_kill(&c->vc.task); diff --git a/drivers/dma/mmp_pdma.c b/drivers/dma/mmp_pdma.c index 56f1fd68b620..f4b25fb0d040 100644 --- a/drivers/dma/mmp_pdma.c +++ b/drivers/dma/mmp_pdma.c @@ -931,6 +931,25 @@ static void dma_do_tasklet(unsigned long data) static int mmp_pdma_remove(struct platform_device *op) { struct mmp_pdma_device *pdev = platform_get_drvdata(op); + struct mmp_pdma_phy *phy; + int i, irq = 0, irq_num = 0; + + + for (i = 0; i < pdev->dma_channels; i++) { + if (platform_get_irq(op, i) > 0) + irq_num++; + } + + if (irq_num != pdev->dma_channels) { + irq = platform_get_irq(op, 0); + devm_free_irq(&op->dev, irq, pdev); + } else { + for (i = 0; i < pdev->dma_channels; i++) { + phy = &pdev->phy[i]; + irq = platform_get_irq(op, i); + devm_free_irq(&op->dev, irq, phy); + } + } dma_async_device_unregister(&pdev->device); return 0; diff --git a/drivers/dma/mmp_tdma.c b/drivers/dma/mmp_tdma.c index ba7f412696c9..b3441f57a364 100644 --- a/drivers/dma/mmp_tdma.c +++ b/drivers/dma/mmp_tdma.c @@ -404,7 +404,7 @@ static void mmp_tdma_free_chan_resources(struct dma_chan *chan) return; } -struct mmp_tdma_desc *mmp_tdma_alloc_descriptor(struct mmp_tdma_chan *tdmac) +static struct mmp_tdma_desc *mmp_tdma_alloc_descriptor(struct mmp_tdma_chan *tdmac) { struct gen_pool *gpool; int size = tdmac->desc_num * sizeof(struct mmp_tdma_desc); @@ -592,7 +592,7 @@ static bool mmp_tdma_filter_fn(struct dma_chan *chan, void *fn_param) return true; } -struct dma_chan *mmp_tdma_xlate(struct of_phandle_args *dma_spec, +static struct dma_chan *mmp_tdma_xlate(struct of_phandle_args *dma_spec, struct of_dma *ofdma) { struct mmp_tdma_device *tdev = ofdma->of_dma_data; diff --git a/drivers/dma/moxart-dma.c b/drivers/dma/moxart-dma.c index b3a1d9a22b61..a6e642792e5a 100644 --- a/drivers/dma/moxart-dma.c +++ b/drivers/dma/moxart-dma.c @@ -148,6 +148,7 @@ struct moxart_chan { struct moxart_dmadev { struct dma_device dma_slave; struct moxart_chan slave_chans[APB_DMA_MAX_CHANNEL]; + unsigned int irq; }; struct moxart_filter_data { @@ -615,6 +616,7 @@ static int moxart_probe(struct platform_device *pdev) dev_err(dev, "devm_request_irq failed\n"); return ret; } + mdc->irq = irq; ret = dma_async_device_register(&mdc->dma_slave); if (ret) { @@ -638,6 +640,8 @@ static int moxart_remove(struct platform_device *pdev) { struct moxart_dmadev *m = platform_get_drvdata(pdev); + devm_free_irq(&pdev->dev, m->irq, m); + dma_async_device_unregister(&m->dma_slave); if (pdev->dev.of_node) diff --git a/drivers/dma/mpc512x_dma.c b/drivers/dma/mpc512x_dma.c index ccadafa51d5e..fa86592c7ae1 100644 --- a/drivers/dma/mpc512x_dma.c +++ b/drivers/dma/mpc512x_dma.c @@ -1110,6 +1110,7 @@ static int mpc_dma_remove(struct platform_device *op) } free_irq(mdma->irq, mdma); irq_dispose_mapping(mdma->irq); + tasklet_kill(&mdma->tasklet); return 0; } diff --git a/drivers/dma/nbpfaxi.c b/drivers/dma/nbpfaxi.c index 9f0e98b75eb9..08c45c185549 100644 --- a/drivers/dma/nbpfaxi.c +++ b/drivers/dma/nbpfaxi.c @@ -227,6 +227,7 @@ struct nbpf_device { void __iomem *base; struct clk *clk; const struct nbpf_config *config; + unsigned int eirq; struct nbpf_channel chan[]; }; @@ -1375,6 +1376,7 @@ static int nbpf_probe(struct platform_device *pdev) IRQF_SHARED, "dma error", nbpf); if (ret < 0) return ret; + nbpf->eirq = eirq; INIT_LIST_HEAD(&dma_dev->channels); @@ -1446,6 +1448,17 @@ e_clk_off: static int nbpf_remove(struct platform_device *pdev) { struct nbpf_device *nbpf = platform_get_drvdata(pdev); + int i; + + devm_free_irq(&pdev->dev, nbpf->eirq, nbpf); + + for (i = 0; i < nbpf->config->num_channels; i++) { + struct nbpf_channel *chan = nbpf->chan + i; + + devm_free_irq(&pdev->dev, chan->irq, chan); + + tasklet_kill(&chan->tasklet); + } of_dma_controller_free(pdev->dev.of_node); dma_async_device_unregister(&nbpf->dma_dev); diff --git a/drivers/dma/omap-dma.c b/drivers/dma/omap-dma.c index 2e0d49bcfd8a..d99ca2b511c4 100644 --- a/drivers/dma/omap-dma.c +++ b/drivers/dma/omap-dma.c @@ -1292,10 +1292,14 @@ static int omap_dma_probe(struct platform_device *pdev) static int omap_dma_remove(struct platform_device *pdev) { struct omap_dmadev *od = platform_get_drvdata(pdev); + int irq; if (pdev->dev.of_node) of_dma_controller_free(pdev->dev.of_node); + irq = platform_get_irq(pdev, 1); + devm_free_irq(&pdev->dev, irq, od); + dma_async_device_unregister(&od->ddev); if (!od->legacy) { diff --git a/drivers/dma/pl330.c b/drivers/dma/pl330.c index c8767d3e5eb0..4fc3ffbd5ca0 100644 --- a/drivers/dma/pl330.c +++ b/drivers/dma/pl330.c @@ -3002,12 +3002,18 @@ static int pl330_remove(struct amba_device *adev) { struct pl330_dmac *pl330 = amba_get_drvdata(adev); struct dma_pl330_chan *pch, *_p; + int i, irq; pm_runtime_get_noresume(pl330->ddma.dev); if (adev->dev.of_node) of_dma_controller_free(adev->dev.of_node); + for (i = 0; i < AMBA_NR_IRQS; i++) { + irq = adev->irq[i]; + devm_free_irq(&adev->dev, irq, pl330); + } + dma_async_device_unregister(&pl330->ddma); /* Idle the DMAC */ diff --git a/drivers/dma/pxa_dma.c b/drivers/dma/pxa_dma.c index e756a30ccba2..dc7850a422b8 100644 --- a/drivers/dma/pxa_dma.c +++ b/drivers/dma/pxa_dma.c @@ -21,6 +21,7 @@ #include <linux/of_device.h> #include <linux/of_dma.h> #include <linux/of.h> +#include <linux/wait.h> #include <linux/dma/pxa-dma.h> #include "dmaengine.h" @@ -118,6 +119,8 @@ struct pxad_chan { struct pxad_phy *phy; struct dma_pool *desc_pool; /* Descriptors pool */ dma_cookie_t bus_error; + + wait_queue_head_t wq_state; }; struct pxad_device { @@ -318,7 +321,6 @@ static int dbg_open_##name(struct inode *inode, struct file *file) \ return single_open(file, dbg_show_##name, inode->i_private); \ } \ static const struct file_operations dbg_fops_##name = { \ - .owner = THIS_MODULE, \ .open = dbg_open_##name, \ .llseek = seq_lseek, \ .read = seq_read, \ @@ -572,6 +574,7 @@ static void pxad_launch_chan(struct pxad_chan *chan, */ phy_writel(chan->phy, desc->first, DDADR); phy_enable(chan->phy, chan->misaligned); + wake_up(&chan->wq_state); } static void set_updater_desc(struct pxad_desc_sw *sw_desc, @@ -717,6 +720,7 @@ static irqreturn_t pxad_chan_handler(int irq, void *dev_id) } } spin_unlock_irqrestore(&chan->vc.lock, flags); + wake_up(&chan->wq_state); return IRQ_HANDLED; } @@ -1268,6 +1272,14 @@ static enum dma_status pxad_tx_status(struct dma_chan *dchan, return ret; } +static void pxad_synchronize(struct dma_chan *dchan) +{ + struct pxad_chan *chan = to_pxad_chan(dchan); + + wait_event(chan->wq_state, !is_chan_running(chan)); + vchan_synchronize(&chan->vc); +} + static void pxad_free_channels(struct dma_device *dmadev) { struct pxad_chan *c, *cn; @@ -1372,6 +1384,7 @@ static int pxad_init_dmadev(struct platform_device *op, pdev->slave.device_tx_status = pxad_tx_status; pdev->slave.device_issue_pending = pxad_issue_pending; pdev->slave.device_config = pxad_config; + pdev->slave.device_synchronize = pxad_synchronize; pdev->slave.device_terminate_all = pxad_terminate_all; if (op->dev.coherent_dma_mask) @@ -1389,6 +1402,7 @@ static int pxad_init_dmadev(struct platform_device *op, return -ENOMEM; c->vc.desc_free = pxad_free_desc; vchan_init(&c->vc, &pdev->slave); + init_waitqueue_head(&c->wq_state); } return dma_async_device_register(&pdev->slave); diff --git a/drivers/dma/qcom/hidma.c b/drivers/dma/qcom/hidma.c index 41b5c6dee713..b2374cd91e45 100644 --- a/drivers/dma/qcom/hidma.c +++ b/drivers/dma/qcom/hidma.c @@ -708,6 +708,7 @@ static int hidma_remove(struct platform_device *pdev) pm_runtime_get_sync(dmadev->ddev.dev); dma_async_device_unregister(&dmadev->ddev); devm_free_irq(dmadev->ddev.dev, dmadev->irq, dmadev->lldev); + tasklet_kill(&dmadev->task); hidma_debug_uninit(dmadev); hidma_ll_uninit(dmadev->lldev); hidma_free(dmadev); diff --git a/drivers/dma/qcom/hidma_ll.c b/drivers/dma/qcom/hidma_ll.c index f3929001539b..ad20dfb64c71 100644 --- a/drivers/dma/qcom/hidma_ll.c +++ b/drivers/dma/qcom/hidma_ll.c @@ -831,6 +831,7 @@ int hidma_ll_uninit(struct hidma_lldev *lldev) required_bytes = sizeof(struct hidma_tre) * lldev->nr_tres; tasklet_kill(&lldev->task); + tasklet_kill(&lldev->rst_task); memset(lldev->trepool, 0, required_bytes); lldev->trepool = NULL; lldev->pending_tre_count = 0; diff --git a/drivers/dma/s3c24xx-dma.c b/drivers/dma/s3c24xx-dma.c index 0d2d187646f4..ce67075589f5 100644 --- a/drivers/dma/s3c24xx-dma.c +++ b/drivers/dma/s3c24xx-dma.c @@ -1136,8 +1136,10 @@ static void s3c24xx_dma_free_virtual_channels(struct dma_device *dmadev) struct s3c24xx_dma_chan *next; list_for_each_entry_safe(chan, - next, &dmadev->channels, vc.chan.device_node) + next, &dmadev->channels, vc.chan.device_node) { list_del(&chan->vc.chan.device_node); + tasklet_kill(&chan->vc.task); + } } /* s3c2410, s3c2440 and s3c2442 have a 0x40 stride without separate clocks */ @@ -1359,6 +1361,18 @@ err_memcpy: return ret; } +static void s3c24xx_dma_free_irq(struct platform_device *pdev, + struct s3c24xx_dma_engine *s3cdma) +{ + int i; + + for (i = 0; i < s3cdma->pdata->num_phy_channels; i++) { + struct s3c24xx_dma_phy *phy = &s3cdma->phy_chans[i]; + + devm_free_irq(&pdev->dev, phy->irq, phy); + } +} + static int s3c24xx_dma_remove(struct platform_device *pdev) { const struct s3c24xx_dma_platdata *pdata = dev_get_platdata(&pdev->dev); @@ -1369,6 +1383,8 @@ static int s3c24xx_dma_remove(struct platform_device *pdev) dma_async_device_unregister(&s3cdma->slave); dma_async_device_unregister(&s3cdma->memcpy); + s3c24xx_dma_free_irq(pdev, s3cdma); + s3c24xx_dma_free_virtual_channels(&s3cdma->slave); s3c24xx_dma_free_virtual_channels(&s3cdma->memcpy); diff --git a/drivers/dma/sirf-dma.c b/drivers/dma/sirf-dma.c index 906877919cf3..d8bc3f2a71db 100644 --- a/drivers/dma/sirf-dma.c +++ b/drivers/dma/sirf-dma.c @@ -980,6 +980,7 @@ static int sirfsoc_dma_remove(struct platform_device *op) of_dma_controller_free(op->dev.of_node); dma_async_device_unregister(&sdma->dma); free_irq(sdma->irq, sdma); + tasklet_kill(&sdma->tasklet); irq_dispose_mapping(sdma->irq); pm_runtime_disable(&op->dev); if (!pm_runtime_status_suspended(&op->dev)) diff --git a/drivers/dma/txx9dmac.c b/drivers/dma/txx9dmac.c index 8849318b32b7..7632290e7c14 100644 --- a/drivers/dma/txx9dmac.c +++ b/drivers/dma/txx9dmac.c @@ -1165,9 +1165,12 @@ static int txx9dmac_chan_remove(struct platform_device *pdev) { struct txx9dmac_chan *dc = platform_get_drvdata(pdev); + dma_async_device_unregister(&dc->dma); - if (dc->irq >= 0) + if (dc->irq >= 0) { + devm_free_irq(&pdev->dev, dc->irq, dc); tasklet_kill(&dc->tasklet); + } dc->ddev->chan[pdev->id % TXX9_DMA_MAX_NR_CHANNELS] = NULL; return 0; } @@ -1228,8 +1231,10 @@ static int txx9dmac_remove(struct platform_device *pdev) struct txx9dmac_dev *ddev = platform_get_drvdata(pdev); txx9dmac_off(ddev); - if (ddev->irq >= 0) + if (ddev->irq >= 0) { + devm_free_irq(&pdev->dev, ddev->irq, ddev); tasklet_kill(&ddev->tasklet); + } return 0; } |