diff options
Diffstat (limited to 'drivers/dma/fsl-edma-main.c')
| -rw-r--r-- | drivers/dma/fsl-edma-main.c | 29 |
1 files changed, 18 insertions, 11 deletions
diff --git a/drivers/dma/fsl-edma-main.c b/drivers/dma/fsl-edma-main.c index 4635e16d7705..45cc419b1b4a 100644 --- a/drivers/dma/fsl-edma-main.c +++ b/drivers/dma/fsl-edma-main.c @@ -9,6 +9,7 @@ * Vybrid and Layerscape SoCs. */ +#include <dt-bindings/dma/fsl-edma.h> #include <linux/module.h> #include <linux/interrupt.h> #include <linux/clk.h> @@ -21,10 +22,6 @@ #include "fsl-edma-common.h" -#define ARGS_RX BIT(0) -#define ARGS_REMOTE BIT(1) -#define ARGS_MULTI_FIFO BIT(2) - static void fsl_edma_synchronize(struct dma_chan *chan) { struct fsl_edma_chan *fsl_chan = to_fsl_edma_chan(chan); @@ -153,9 +150,15 @@ static struct dma_chan *fsl_edma3_xlate(struct of_phandle_args *dma_spec, i = fsl_chan - fsl_edma->chans; fsl_chan->priority = dma_spec->args[1]; - fsl_chan->is_rxchan = dma_spec->args[2] & ARGS_RX; - fsl_chan->is_remote = dma_spec->args[2] & ARGS_REMOTE; - fsl_chan->is_multi_fifo = dma_spec->args[2] & ARGS_MULTI_FIFO; + fsl_chan->is_rxchan = dma_spec->args[2] & FSL_EDMA_RX; + fsl_chan->is_remote = dma_spec->args[2] & FSL_EDMA_REMOTE; + fsl_chan->is_multi_fifo = dma_spec->args[2] & FSL_EDMA_MULTI_FIFO; + + if ((dma_spec->args[2] & FSL_EDMA_EVEN_CH) && (i & 0x1)) + continue; + + if ((dma_spec->args[2] & FSL_EDMA_ODD_CH) && !(i & 0x1)) + continue; if (!b_chmux && i == dma_spec->args[0]) { chan = dma_get_slave_channel(chan); @@ -396,9 +399,8 @@ static int fsl_edma3_attach_pd(struct platform_device *pdev, struct fsl_edma_eng link = device_link_add(dev, pd_chan, DL_FLAG_STATELESS | DL_FLAG_PM_RUNTIME | DL_FLAG_RPM_ACTIVE); - if (IS_ERR(link)) { - dev_err(dev, "Failed to add device_link to %d: %ld\n", i, - PTR_ERR(link)); + if (!link) { + dev_err(dev, "Failed to add device_link to %d\n", i); return -EINVAL; } @@ -631,6 +633,8 @@ static int fsl_edma_suspend_late(struct device *dev) for (i = 0; i < fsl_edma->n_chans; i++) { fsl_chan = &fsl_edma->chans[i]; + if (fsl_edma->chan_masked & BIT(i)) + continue; spin_lock_irqsave(&fsl_chan->vchan.lock, flags); /* Make sure chan is idle or will force disable. */ if (unlikely(!fsl_chan->idle)) { @@ -655,13 +659,16 @@ static int fsl_edma_resume_early(struct device *dev) for (i = 0; i < fsl_edma->n_chans; i++) { fsl_chan = &fsl_edma->chans[i]; + if (fsl_edma->chan_masked & BIT(i)) + continue; fsl_chan->pm_state = RUNNING; edma_write_tcdreg(fsl_chan, 0, csr); if (fsl_chan->slave_id != 0) fsl_edma_chan_mux(fsl_chan, fsl_chan->slave_id, true); } - edma_writel(fsl_edma, EDMA_CR_ERGA | EDMA_CR_ERCA, regs->cr); + if (!(fsl_edma->drvdata->flags & FSL_EDMA_DRV_SPLIT_REG)) + edma_writel(fsl_edma, EDMA_CR_ERGA | EDMA_CR_ERCA, regs->cr); return 0; } |