diff options
| author |   Andy Shevchenko <andriy.shevchenko@linux.intel.com> | 2017-01-17 13:57:26 +0200 |
|---|---|---|
| committer |   Vinod Koul <vinod.koul@intel.com> | 2017-01-25 11:51:39 +0530 |
| commit | 08d62f58aa2587132a930afbe8664379b430e2dd (patch) | |
| tree | 809307cbc91f239274be510b69e4300155fc06e2 /drivers/dma | |
| parent | dmaengine: dw: Fix data corruption in large device to memory transfers (diff) | |
| download | linux-dev-08d62f58aa2587132a930afbe8664379b430e2dd.tar.xz linux-dev-08d62f58aa2587132a930afbe8664379b430e2dd.zip | |
dmaengine: dw: register IRQ and DMA pool with instance ID
It is really useful not only for debugging to have an IRQ line and DMA
pool labeled with driver and its instance ID. Do this for DesignWare DMA
driver.
All current users of this IP would be enhanced later on.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Diffstat (limited to 'drivers/dma')
| -rw-r--r-- | drivers/dma/dw/core.c | 7 | ||||
| -rw-r--r-- | drivers/dma/dw/pci.c | 1 | ||||
| -rw-r--r-- | drivers/dma/dw/platform.c | 1 | ||||
| -rw-r--r-- | drivers/dma/dw/regs.h | 1 |
4 files changed, 8 insertions, 2 deletions
diff --git a/drivers/dma/dw/core.c b/drivers/dma/dw/core.c index 45bb608a1b7c..87516246c445 100644 --- a/drivers/dma/dw/core.c +++ b/drivers/dma/dw/core.c @@ -1502,8 +1502,11 @@ int dw_dma_probe(struct dw_dma_chip *chip) /* Force dma off, just in case */ dw_dma_off(dw); + /* Device and instance ID for IRQ and DMA pool */ + snprintf(dw->name, sizeof(dw->name), "dw:dmac%d", chip->id); + /* Create a pool of consistent memory blocks for hardware descriptors */ - dw->desc_pool = dmam_pool_create("dw_dmac_desc_pool", chip->dev, + dw->desc_pool = dmam_pool_create(dw->name, chip->dev, sizeof(struct dw_desc), 4, 0); if (!dw->desc_pool) { dev_err(chip->dev, "No memory for descriptors dma pool\n"); @@ -1514,7 +1517,7 @@ int dw_dma_probe(struct dw_dma_chip *chip) tasklet_init(&dw->tasklet, dw_dma_tasklet, (unsigned long)dw); err = request_irq(chip->irq, dw_dma_interrupt, IRQF_SHARED, - "dw_dmac", dw); + dw->name, dw); if (err) goto err_pdata; diff --git a/drivers/dma/dw/pci.c b/drivers/dma/dw/pci.c index 7558a9c38fda..47194372f738 100644 --- a/drivers/dma/dw/pci.c +++ b/drivers/dma/dw/pci.c @@ -47,6 +47,7 @@ static int dw_pci_probe(struct pci_dev *pdev, const struct pci_device_id *pid) return -ENOMEM; chip->dev = &pdev->dev; + chip->id = pdev->devfn; chip->regs = pcim_iomap_table(pdev)[0]; chip->irq = pdev->irq; chip->pdata = pdata; diff --git a/drivers/dma/dw/platform.c b/drivers/dma/dw/platform.c index b1655e40cfa2..c639c60b825a 100644 --- a/drivers/dma/dw/platform.c +++ b/drivers/dma/dw/platform.c @@ -202,6 +202,7 @@ static int dw_probe(struct platform_device *pdev) pdata = dw_dma_parse_dt(pdev); chip->dev = dev; + chip->id = pdev->id; chip->pdata = pdata; chip->clk = devm_clk_get(chip->dev, "hclk"); diff --git a/drivers/dma/dw/regs.h b/drivers/dma/dw/regs.h index 4e0128c62704..6087eba2c275 100644 --- a/drivers/dma/dw/regs.h +++ b/drivers/dma/dw/regs.h @@ -270,6 +270,7 @@ static inline struct dw_dma_chan *to_dw_dma_chan(struct dma_chan *chan) struct dw_dma { struct dma_device dma; + char name[20]; void __iomem *regs; struct dma_pool *desc_pool; struct tasklet_struct tasklet; |