#include <linux/delay.h>
#include <linux/bitmap.h>
#include <linux/device.h>
-#include <linux/dmaengine.h>
-#include <linux/dma-mapping.h>
#include <linux/atmel_pdc.h>
#include <linux/init.h>
#include <linux/interrupt.h>
#include <sound/atmel-ac97c.h>
#include <sound/memalloc.h>
-#include <linux/platform_data/dma-dw.h>
-#include <linux/dma/dw.h>
-
-#ifdef CONFIG_AVR32
-#include <mach/cpu.h>
-#else
-#define cpu_is_at32ap7000() 0
-#endif
-
#include "ac97c.h"
-enum {
- DMA_TX_READY = 0,
- DMA_RX_READY,
- DMA_TX_CHAN_PRESENT,
- DMA_RX_CHAN_PRESENT,
-};
-
/* Serialize access to opened variable */
static DEFINE_MUTEX(opened_mutex);
-struct atmel_ac97c_dma {
- struct dma_chan *rx_chan;
- struct dma_chan *tx_chan;
-};
-
struct atmel_ac97c {
struct clk *pclk;
struct platform_device *pdev;
- struct atmel_ac97c_dma dma;
struct snd_pcm_substream *playback_substream;
struct snd_pcm_substream *capture_substream;
u64 cur_format;
unsigned int cur_rate;
- unsigned long flags;
int playback_period, capture_period;
/* Serialize access to opened variable */
spinlock_t lock;
#define ac97c_readl(chip, reg) \
__raw_readl((chip)->regs + AC97C_##reg)
-/* This function is called by the DMA driver. */
-static void atmel_ac97c_dma_playback_period_done(void *arg)
-{
- struct atmel_ac97c *chip = arg;
- snd_pcm_period_elapsed(chip->playback_substream);
-}
-
-static void atmel_ac97c_dma_capture_period_done(void *arg)
-{
- struct atmel_ac97c *chip = arg;
- snd_pcm_period_elapsed(chip->capture_substream);
-}
-
-static int atmel_ac97c_prepare_dma(struct atmel_ac97c *chip,
- struct snd_pcm_substream *substream,
- enum dma_transfer_direction direction)
-{
- struct dma_chan *chan;
- struct dw_cyclic_desc *cdesc;
- struct snd_pcm_runtime *runtime = substream->runtime;
- unsigned long buffer_len, period_len;
-
- /*
- * We don't do DMA on "complex" transfers, i.e. with
- * non-halfword-aligned buffers or lengths.
- */
- if (runtime->dma_addr & 1 || runtime->buffer_size & 1) {
- dev_dbg(&chip->pdev->dev, "too complex transfer\n");
- return -EINVAL;
- }
-
- if (direction == DMA_MEM_TO_DEV)
- chan = chip->dma.tx_chan;
- else
- chan = chip->dma.rx_chan;
-
- buffer_len = frames_to_bytes(runtime, runtime->buffer_size);
- period_len = frames_to_bytes(runtime, runtime->period_size);
-
- cdesc = dw_dma_cyclic_prep(chan, runtime->dma_addr, buffer_len,
- period_len, direction);
- if (IS_ERR(cdesc)) {
- dev_dbg(&chip->pdev->dev, "could not prepare cyclic DMA\n");
- return PTR_ERR(cdesc);
- }
-
- if (direction == DMA_MEM_TO_DEV) {
- cdesc->period_callback = atmel_ac97c_dma_playback_period_done;
- set_bit(DMA_TX_READY, &chip->flags);
- } else {
- cdesc->period_callback = atmel_ac97c_dma_capture_period_done;
- set_bit(DMA_RX_READY, &chip->flags);
- }
-
- cdesc->period_callback_param = chip;
-
- return 0;
-}
-
static struct snd_pcm_hardware atmel_ac97c_hw = {
.info = (SNDRV_PCM_INFO_MMAP
| SNDRV_PCM_INFO_MMAP_VALID
params_buffer_bytes(hw_params));
if (retval < 0)
return retval;
- /* snd_pcm_lib_malloc_pages returns 1 if buffer is changed. */
- if (cpu_is_at32ap7000()) {
- /* snd_pcm_lib_malloc_pages returns 1 if buffer is changed. */
- if (retval == 1)
- if (test_and_clear_bit(DMA_TX_READY, &chip->flags))
- dw_dma_cyclic_free(chip->dma.tx_chan);
- }
+
/* Set restrictions to params. */
mutex_lock(&opened_mutex);
chip->cur_rate = params_rate(hw_params);
params_buffer_bytes(hw_params));
if (retval < 0)
return retval;
- /* snd_pcm_lib_malloc_pages returns 1 if buffer is changed. */
- if (cpu_is_at32ap7000() && retval == 1)
- if (test_and_clear_bit(DMA_RX_READY, &chip->flags))
- dw_dma_cyclic_free(chip->dma.rx_chan);
/* Set restrictions to params. */
mutex_lock(&opened_mutex);
return retval;
}
-static int atmel_ac97c_playback_hw_free(struct snd_pcm_substream *substream)
-{
- struct atmel_ac97c *chip = snd_pcm_substream_chip(substream);
- if (cpu_is_at32ap7000()) {
- if (test_and_clear_bit(DMA_TX_READY, &chip->flags))
- dw_dma_cyclic_free(chip->dma.tx_chan);
- }
- return snd_pcm_lib_free_pages(substream);
-}
-
-static int atmel_ac97c_capture_hw_free(struct snd_pcm_substream *substream)
-{
- struct atmel_ac97c *chip = snd_pcm_substream_chip(substream);
- if (cpu_is_at32ap7000()) {
- if (test_and_clear_bit(DMA_RX_READY, &chip->flags))
- dw_dma_cyclic_free(chip->dma.rx_chan);
- }
- return snd_pcm_lib_free_pages(substream);
-}
-
static int atmel_ac97c_playback_prepare(struct snd_pcm_substream *substream)
{
struct atmel_ac97c *chip = snd_pcm_substream_chip(substream);
switch (runtime->format) {
case SNDRV_PCM_FORMAT_S16_LE:
- if (cpu_is_at32ap7000())
- word |= AC97C_CMR_CEM_LITTLE;
break;
case SNDRV_PCM_FORMAT_S16_BE: /* fall through */
word &= ~(AC97C_CMR_CEM_LITTLE);
dev_dbg(&chip->pdev->dev, "could not set rate %d Hz\n",
runtime->rate);
- if (cpu_is_at32ap7000()) {
- if (!test_bit(DMA_TX_READY, &chip->flags))
- retval = atmel_ac97c_prepare_dma(chip, substream,
- DMA_MEM_TO_DEV);
- } else {
- /* Initialize and start the PDC */
- writel(runtime->dma_addr, chip->regs + ATMEL_PDC_TPR);
- writel(block_size / 2, chip->regs + ATMEL_PDC_TCR);
- writel(runtime->dma_addr + block_size,
- chip->regs + ATMEL_PDC_TNPR);
- writel(block_size / 2, chip->regs + ATMEL_PDC_TNCR);
- }
+ /* Initialize and start the PDC */
+ writel(runtime->dma_addr, chip->regs + ATMEL_PDC_TPR);
+ writel(block_size / 2, chip->regs + ATMEL_PDC_TCR);
+ writel(runtime->dma_addr + block_size, chip->regs + ATMEL_PDC_TNPR);
+ writel(block_size / 2, chip->regs + ATMEL_PDC_TNCR);
return retval;
}
switch (runtime->format) {
case SNDRV_PCM_FORMAT_S16_LE:
- if (cpu_is_at32ap7000())
- word |= AC97C_CMR_CEM_LITTLE;
break;
case SNDRV_PCM_FORMAT_S16_BE: /* fall through */
word &= ~(AC97C_CMR_CEM_LITTLE);
dev_dbg(&chip->pdev->dev, "could not set rate %d Hz\n",
runtime->rate);
- if (cpu_is_at32ap7000()) {
- if (!test_bit(DMA_RX_READY, &chip->flags))
- retval = atmel_ac97c_prepare_dma(chip, substream,
- DMA_DEV_TO_MEM);
- } else {
- /* Initialize and start the PDC */
- writel(runtime->dma_addr, chip->regs + ATMEL_PDC_RPR);
- writel(block_size / 2, chip->regs + ATMEL_PDC_RCR);
- writel(runtime->dma_addr + block_size,
- chip->regs + ATMEL_PDC_RNPR);
- writel(block_size / 2, chip->regs + ATMEL_PDC_RNCR);
- }
+ /* Initialize and start the PDC */
+ writel(runtime->dma_addr, chip->regs + ATMEL_PDC_RPR);
+ writel(block_size / 2, chip->regs + ATMEL_PDC_RCR);
+ writel(runtime->dma_addr + block_size, chip->regs + ATMEL_PDC_RNPR);
+ writel(block_size / 2, chip->regs + ATMEL_PDC_RNCR);
return retval;
}
{
struct atmel_ac97c *chip = snd_pcm_substream_chip(substream);
unsigned long camr, ptcr = 0;
- int retval = 0;
camr = ac97c_readl(chip, CAMR);
case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: /* fall through */
case SNDRV_PCM_TRIGGER_RESUME: /* fall through */
case SNDRV_PCM_TRIGGER_START:
- if (cpu_is_at32ap7000()) {
- retval = dw_dma_cyclic_start(chip->dma.tx_chan);
- if (retval)
- goto out;
- } else {
- ptcr = ATMEL_PDC_TXTEN;
- }
+ ptcr = ATMEL_PDC_TXTEN;
camr |= AC97C_CMR_CENA | AC97C_CSR_ENDTX;
break;
case SNDRV_PCM_TRIGGER_PAUSE_PUSH: /* fall through */
case SNDRV_PCM_TRIGGER_SUSPEND: /* fall through */
case SNDRV_PCM_TRIGGER_STOP:
- if (cpu_is_at32ap7000())
- dw_dma_cyclic_stop(chip->dma.tx_chan);
- else
- ptcr |= ATMEL_PDC_TXTDIS;
+ ptcr |= ATMEL_PDC_TXTDIS;
if (chip->opened <= 1)
camr &= ~AC97C_CMR_CENA;
break;
default:
- retval = -EINVAL;
- goto out;
+ return -EINVAL;
}
ac97c_writel(chip, CAMR, camr);
- if (!cpu_is_at32ap7000())
- writel(ptcr, chip->regs + ATMEL_PDC_PTCR);
-out:
- return retval;
+ writel(ptcr, chip->regs + ATMEL_PDC_PTCR);
+ return 0;
}
static int
{
struct atmel_ac97c *chip = snd_pcm_substream_chip(substream);
unsigned long camr, ptcr = 0;
- int retval = 0;
camr = ac97c_readl(chip, CAMR);
ptcr = readl(chip->regs + ATMEL_PDC_PTSR);
case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: /* fall through */
case SNDRV_PCM_TRIGGER_RESUME: /* fall through */
case SNDRV_PCM_TRIGGER_START:
- if (cpu_is_at32ap7000()) {
- retval = dw_dma_cyclic_start(chip->dma.rx_chan);
- if (retval)
- goto out;
- } else {
- ptcr = ATMEL_PDC_RXTEN;
- }
+ ptcr = ATMEL_PDC_RXTEN;
camr |= AC97C_CMR_CENA | AC97C_CSR_ENDRX;
break;
case SNDRV_PCM_TRIGGER_PAUSE_PUSH: /* fall through */
case SNDRV_PCM_TRIGGER_SUSPEND: /* fall through */
case SNDRV_PCM_TRIGGER_STOP:
- if (cpu_is_at32ap7000())
- dw_dma_cyclic_stop(chip->dma.rx_chan);
- else
- ptcr |= (ATMEL_PDC_RXTDIS);
+ ptcr |= ATMEL_PDC_RXTDIS;
if (chip->opened <= 1)
camr &= ~AC97C_CMR_CENA;
break;
default:
- retval = -EINVAL;
- break;
+ return -EINVAL;
}
ac97c_writel(chip, CAMR, camr);
- if (!cpu_is_at32ap7000())
- writel(ptcr, chip->regs + ATMEL_PDC_PTCR);
-out:
- return retval;
+ writel(ptcr, chip->regs + ATMEL_PDC_PTCR);
+ return 0;
}
static snd_pcm_uframes_t
snd_pcm_uframes_t frames;
unsigned long bytes;
- if (cpu_is_at32ap7000())
- bytes = dw_dma_get_src_addr(chip->dma.tx_chan);
- else
- bytes = readl(chip->regs + ATMEL_PDC_TPR);
+ bytes = readl(chip->regs + ATMEL_PDC_TPR);
bytes -= runtime->dma_addr;
frames = bytes_to_frames(runtime, bytes);
snd_pcm_uframes_t frames;
unsigned long bytes;
- if (cpu_is_at32ap7000())
- bytes = dw_dma_get_dst_addr(chip->dma.rx_chan);
- else
- bytes = readl(chip->regs + ATMEL_PDC_RPR);
+ bytes = readl(chip->regs + ATMEL_PDC_RPR);
bytes -= runtime->dma_addr;
frames = bytes_to_frames(runtime, bytes);
.close = atmel_ac97c_playback_close,
.ioctl = snd_pcm_lib_ioctl,
.hw_params = atmel_ac97c_playback_hw_params,
- .hw_free = atmel_ac97c_playback_hw_free,
+ .hw_free = snd_pcm_lib_free_pages,
.prepare = atmel_ac97c_playback_prepare,
.trigger = atmel_ac97c_playback_trigger,
.pointer = atmel_ac97c_playback_pointer,
.close = atmel_ac97c_capture_close,
.ioctl = snd_pcm_lib_ioctl,
.hw_params = atmel_ac97c_capture_hw_params,
- .hw_free = atmel_ac97c_capture_hw_free,
+ .hw_free = snd_pcm_lib_free_pages,
.prepare = atmel_ac97c_capture_prepare,
.trigger = atmel_ac97c_capture_trigger,
.pointer = atmel_ac97c_capture_pointer,
casr & AC97C_CSR_TXEMPTY ? " TXEMPTY" : "",
casr & AC97C_CSR_TXRDY ? " TXRDY" : "",
!casr ? " NONE" : "");
- if (!cpu_is_at32ap7000()) {
- if ((casr & camr) & AC97C_CSR_ENDTX) {
- runtime = chip->playback_substream->runtime;
- block_size = frames_to_bytes(runtime,
- runtime->period_size);
- chip->playback_period++;
-
- if (chip->playback_period == runtime->periods)
- chip->playback_period = 0;
- next_period = chip->playback_period + 1;
- if (next_period == runtime->periods)
- next_period = 0;
-
- offset = block_size * next_period;
-
- writel(runtime->dma_addr + offset,
- chip->regs + ATMEL_PDC_TNPR);
- writel(block_size / 2,
- chip->regs + ATMEL_PDC_TNCR);
-
- snd_pcm_period_elapsed(
- chip->playback_substream);
- }
- if ((casr & camr) & AC97C_CSR_ENDRX) {
- runtime = chip->capture_substream->runtime;
- block_size = frames_to_bytes(runtime,
- runtime->period_size);
- chip->capture_period++;
-
- if (chip->capture_period == runtime->periods)
- chip->capture_period = 0;
- next_period = chip->capture_period + 1;
- if (next_period == runtime->periods)
- next_period = 0;
-
- offset = block_size * next_period;
-
- writel(runtime->dma_addr + offset,
- chip->regs + ATMEL_PDC_RNPR);
- writel(block_size / 2,
- chip->regs + ATMEL_PDC_RNCR);
- snd_pcm_period_elapsed(chip->capture_substream);
- }
+ if ((casr & camr) & AC97C_CSR_ENDTX) {
+ runtime = chip->playback_substream->runtime;
+ block_size = frames_to_bytes(runtime, runtime->period_size);
+ chip->playback_period++;
+
+ if (chip->playback_period == runtime->periods)
+ chip->playback_period = 0;
+ next_period = chip->playback_period + 1;
+ if (next_period == runtime->periods)
+ next_period = 0;
+
+ offset = block_size * next_period;
+
+ writel(runtime->dma_addr + offset, chip->regs + ATMEL_PDC_TNPR);
+ writel(block_size / 2, chip->regs + ATMEL_PDC_TNCR);
+
+ snd_pcm_period_elapsed(chip->playback_substream);
+ }
+ if ((casr & camr) & AC97C_CSR_ENDRX) {
+ runtime = chip->capture_substream->runtime;
+ block_size = frames_to_bytes(runtime, runtime->period_size);
+ chip->capture_period++;
+
+ if (chip->capture_period == runtime->periods)
+ chip->capture_period = 0;
+ next_period = chip->capture_period + 1;
+ if (next_period == runtime->periods)
+ next_period = 0;
+
+ offset = block_size * next_period;
+
+ writel(runtime->dma_addr + offset, chip->regs + ATMEL_PDC_RNPR);
+ writel(block_size / 2, chip->regs + ATMEL_PDC_RNCR);
+ snd_pcm_period_elapsed(chip->capture_substream);
}
retval = IRQ_HANDLED;
}
{
struct snd_pcm *pcm;
struct snd_pcm_hardware hw = atmel_ac97c_hw;
- int capture, playback, retval, err;
+ int retval;
- capture = test_bit(DMA_RX_CHAN_PRESENT, &chip->flags);
- playback = test_bit(DMA_TX_CHAN_PRESENT, &chip->flags);
+ retval = snd_ac97_pcm_assign(chip->ac97_bus,
+ ARRAY_SIZE(at91_ac97_pcm_defs),
+ at91_ac97_pcm_defs);
+ if (retval)
+ return retval;
- if (!cpu_is_at32ap7000()) {
- err = snd_ac97_pcm_assign(chip->ac97_bus,
- ARRAY_SIZE(at91_ac97_pcm_defs),
- at91_ac97_pcm_defs);
- if (err)
- return err;
- }
- retval = snd_pcm_new(chip->card, chip->card->shortname,
- 0, playback, capture, &pcm);
+ retval = snd_pcm_new(chip->card, chip->card->shortname, 0, 1, 1, &pcm);
if (retval)
return retval;
- if (capture)
- snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE,
- &atmel_ac97_capture_ops);
- if (playback)
- snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK,
- &atmel_ac97_playback_ops);
+ snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &atmel_ac97_capture_ops);
+ snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &atmel_ac97_playback_ops);
retval = snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
&chip->pdev->dev, hw.periods_min * hw.period_bytes_min,
return 0xffff;
}
-static bool filter(struct dma_chan *chan, void *slave)
-{
- struct dw_dma_slave *dws = slave;
-
- if (dws->dma_dev == chan->device->dev) {
- chan->private = dws;
- return true;
- } else
- return false;
-}
-
static void atmel_ac97c_reset(struct atmel_ac97c *chip)
{
ac97c_writel(chip, MR, 0);
return -ENXIO;
}
- if (cpu_is_at32ap7000()) {
- pclk = clk_get(&pdev->dev, "pclk");
- } else {
- pclk = clk_get(&pdev->dev, "ac97_clk");
- }
-
+ pclk = clk_get(&pdev->dev, "ac97_clk");
if (IS_ERR(pclk)) {
dev_dbg(&pdev->dev, "no peripheral clock\n");
return PTR_ERR(pclk);
goto err_ac97_bus;
}
- if (cpu_is_at32ap7000()) {
- if (pdata->rx_dws.dma_dev) {
- dma_cap_mask_t mask;
-
- dma_cap_zero(mask);
- dma_cap_set(DMA_SLAVE, mask);
-
- chip->dma.rx_chan = dma_request_channel(mask, filter,
- &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));
- set_bit(DMA_RX_CHAN_PRESENT, &chip->flags);
- }
-
- if (pdata->tx_dws.dma_dev) {
- dma_cap_mask_t mask;
-
- dma_cap_zero(mask);
- dma_cap_set(DMA_SLAVE, mask);
-
- chip->dma.tx_chan = dma_request_channel(mask, filter,
- &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));
- set_bit(DMA_TX_CHAN_PRESENT, &chip->flags);
- }
-
- if (!test_bit(DMA_RX_CHAN_PRESENT, &chip->flags) &&
- !test_bit(DMA_TX_CHAN_PRESENT, &chip->flags)) {
- dev_dbg(&pdev->dev, "DMA not available\n");
- retval = -ENODEV;
- goto err_dma;
- }
- } else {
- /* Just pretend that we have DMA channel(for at91 i is actually
- * the PDC) */
- set_bit(DMA_RX_CHAN_PRESENT, &chip->flags);
- set_bit(DMA_TX_CHAN_PRESENT, &chip->flags);
- }
-
retval = atmel_ac97c_pcm_new(chip);
if (retval) {
dev_dbg(&pdev->dev, "could not register ac97 pcm device\n");
- goto err_dma;
+ goto err_ac97_bus;
}
retval = snd_card_register(card);
if (retval) {
dev_dbg(&pdev->dev, "could not register sound card\n");
- goto err_dma;
+ goto err_ac97_bus;
}
platform_set_drvdata(pdev, card);
return 0;
-err_dma:
- if (cpu_is_at32ap7000()) {
- if (test_bit(DMA_RX_CHAN_PRESENT, &chip->flags))
- dma_release_channel(chip->dma.rx_chan);
- if (test_bit(DMA_TX_CHAN_PRESENT, &chip->flags))
- dma_release_channel(chip->dma.tx_chan);
- clear_bit(DMA_RX_CHAN_PRESENT, &chip->flags);
- clear_bit(DMA_TX_CHAN_PRESENT, &chip->flags);
- chip->dma.rx_chan = NULL;
- chip->dma.tx_chan = NULL;
- }
err_ac97_bus:
if (gpio_is_valid(chip->reset_pin))
gpio_free(chip->reset_pin);
struct snd_card *card = dev_get_drvdata(pdev);
struct atmel_ac97c *chip = card->private_data;
- if (cpu_is_at32ap7000()) {
- if (test_bit(DMA_RX_READY, &chip->flags))
- dw_dma_cyclic_stop(chip->dma.rx_chan);
- if (test_bit(DMA_TX_READY, &chip->flags))
- dw_dma_cyclic_stop(chip->dma.tx_chan);
- }
clk_disable_unprepare(chip->pclk);
-
return 0;
}
struct atmel_ac97c *chip = card->private_data;
clk_prepare_enable(chip->pclk);
- if (cpu_is_at32ap7000()) {
- if (test_bit(DMA_RX_READY, &chip->flags))
- dw_dma_cyclic_start(chip->dma.rx_chan);
- if (test_bit(DMA_TX_READY, &chip->flags))
- dw_dma_cyclic_start(chip->dma.tx_chan);
- }
return 0;
}
iounmap(chip->regs);
free_irq(chip->irq, chip);
- if (cpu_is_at32ap7000()) {
- if (test_bit(DMA_RX_CHAN_PRESENT, &chip->flags))
- dma_release_channel(chip->dma.rx_chan);
- if (test_bit(DMA_TX_CHAN_PRESENT, &chip->flags))
- dma_release_channel(chip->dma.tx_chan);
- clear_bit(DMA_RX_CHAN_PRESENT, &chip->flags);
- clear_bit(DMA_TX_CHAN_PRESENT, &chip->flags);
- chip->dma.rx_chan = NULL;
- chip->dma.tx_chan = NULL;
- }
-
snd_card_free(card);
return 0;
git.samba.org / sfrench / cifs-2.6.git / blobdiff