diff options
| author | Viresh Kumar <viresh.kumar@st.com> | 2012-02-01 16:12:27 +0530 |
|---|---|---|
| committer | Vinod Koul <vinod.koul@linux.intel.com> | 2012-02-22 18:15:39 +0530 |
| commit | e2b35f3dbfc080f15b72834d08f04f0269dbe9be (patch) | |
| tree | fda60f8be147b57cf01155528dda33a9a99b0dab /sound/atmel | |
| parent | 327e6970258618da810f72e86cf2a8b803927e14 (diff) | |
| download | linux-next-e2b35f3dbfc080f15b72834d08f04f0269dbe9be.tar.gz | |
dmaengine/dw_dmac: Fix dw_dmac user drivers to adapt to slave_config changes
There are few existing user drivers of dw_dmac. They will break as soon as we
remove unused fields from struct dw_dma_slave. This patch focuses to fix these
user drivers to use dma_slave_config() routine.
Signed-off-by: Viresh Kumar <viresh.kumar@st.com>
Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com>
Diffstat (limited to 'sound/atmel')
| -rw-r--r-- | sound/atmel/abdac.c | 18 | ||||
| -rw-r--r-- | sound/atmel/ac97c.c | 41 |
2 files changed, 47 insertions, 12 deletions
diff --git a/sound/atmel/abdac.c b/sound/atmel/abdac.c index 4fa1dbd8ee83..f7c2bb08055d 100644 --- a/sound/atmel/abdac.c +++ b/sound/atmel/abdac.c @@ -16,6 +16,7 @@ #include <linux/interrupt.h> #include <linux/module.h> #include <linux/platform_device.h> +#include <linux/types.h> #include <linux/io.h> #include <sound/core.h> @@ -467,15 +468,24 @@ static int __devinit atmel_abdac_probe(struct platform_device *pdev) snd_card_set_dev(card, &pdev->dev); if (pdata->dws.dma_dev) { - struct dw_dma_slave *dws = &pdata->dws; dma_cap_mask_t mask; - dws->tx_reg = regs->start + DAC_DATA; - dma_cap_zero(mask); dma_cap_set(DMA_SLAVE, mask); - dac->dma.chan = dma_request_channel(mask, filter, dws); + dac->dma.chan = dma_request_channel(mask, filter, &pdata->dws); + if (dac->dma.chan) { + struct dma_slave_config dma_conf = { + .dst_addr = regs->start + DAC_DATA, + .dst_addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES, + .src_maxburst = 1, + .dst_maxburst = 1, + .direction = DMA_MEM_TO_DEV, + .device_fc = false, + }; + + dmaengine_slave_config(dac->dma.chan, &dma_conf); + } } if (!pdata->dws.dma_dev || !dac->dma.chan) { dev_dbg(&pdev->dev, "DMA not available\n"); diff --git a/sound/atmel/ac97c.c b/sound/atmel/ac97c.c index 61dade698358..115313ef54d6 100644 --- a/sound/atmel/ac97c.c +++ b/sound/atmel/ac97c.c @@ -20,6 +20,7 @@ #include <linux/platform_device.h> #include <linux/mutex.h> #include <linux/gpio.h> +#include <linux/types.h> #include <linux/io.h> #include <sound/core.h> @@ -1014,16 +1015,28 @@ static int __devinit atmel_ac97c_probe(struct platform_device *pdev) if (cpu_is_at32ap7000()) { if (pdata->rx_dws.dma_dev) { - struct dw_dma_slave *dws = &pdata->rx_dws; dma_cap_mask_t mask; - dws->rx_reg = regs->start + AC97C_CARHR + 2; - dma_cap_zero(mask); dma_cap_set(DMA_SLAVE, mask); chip->dma.rx_chan = dma_request_channel(mask, filter, - dws); + &pdata->rx_dws); + if (chip->dma.rx_chan) { + struct dma_slave_config dma_conf = { + .src_addr = regs->start + AC97C_CARHR + + 2, + .src_addr_width = + DMA_SLAVE_BUSWIDTH_2_BYTES, + .src_maxburst = 1, + .dst_maxburst = 1, + .direction = DMA_DEV_TO_MEM, + .device_fc = false, + }; + + dmaengine_slave_config(chip->dma.rx_chan, + &dma_conf); + } dev_info(&chip->pdev->dev, "using %s for DMA RX\n", dev_name(&chip->dma.rx_chan->dev->device)); @@ -1031,16 +1044,28 @@ static int __devinit atmel_ac97c_probe(struct platform_device *pdev) } if (pdata->tx_dws.dma_dev) { - struct dw_dma_slave *dws = &pdata->tx_dws; dma_cap_mask_t mask; - dws->tx_reg = regs->start + AC97C_CATHR + 2; - dma_cap_zero(mask); dma_cap_set(DMA_SLAVE, mask); chip->dma.tx_chan = dma_request_channel(mask, filter, - dws); + &pdata->tx_dws); + if (chip->dma.tx_chan) { + struct dma_slave_config dma_conf = { + .dst_addr = regs->start + AC97C_CATHR + + 2, + .dst_addr_width = + DMA_SLAVE_BUSWIDTH_2_BYTES, + .src_maxburst = 1, + .dst_maxburst = 1, + .direction = DMA_MEM_TO_DEV, + .device_fc = false, + }; + + dmaengine_slave_config(chip->dma.tx_chan, + &dma_conf); + } dev_info(&chip->pdev->dev, "using %s for DMA TX\n", dev_name(&chip->dma.tx_chan->dev->device)); |