writel(val, acp_mmio + (reg * 4));
}
-/* Configure a given dma channel parameters - enable/disable,
+/*
+ * Configure a given dma channel parameters - enable/disable,
* number of descriptors, priority
*/
static void config_acp_dma_channel(void __iomem *acp_mmio, u8 ch_num,
& dscr_strt_idx),
acp_mmio, mmACP_DMA_DSCR_STRT_IDX_0 + ch_num);
- /* program a DMA channel with the number of descriptors to be
+ /*
+ * program a DMA channel with the number of descriptors to be
* processed in the transfer
- */
+ */
acp_reg_write(ACP_DMA_DSCR_CNT_0__DMAChDscrCnt_MASK & num_dscrs,
- acp_mmio, mmACP_DMA_DSCR_CNT_0 + ch_num);
+ acp_mmio, mmACP_DMA_DSCR_CNT_0 + ch_num);
/* set DMA channel priority */
acp_reg_write(priority_level, acp_mmio, mmACP_DMA_PRIO_0 + ch_num);
acp_reg_write(descr_info->xfer_val, acp_mmio, mmACP_SRBM_Targ_Idx_Data);
}
-/* Initialize the DMA descriptor information for transfer between
+/*
+ * Initialize the DMA descriptor information for transfer between
* system memory <-> ACP SRAM
*/
static void set_acp_sysmem_dma_descriptors(void __iomem *acp_mmio,
- u32 size, int direction, u32 pte_offset,
- u16 ch, u32 sram_bank,
- u16 dma_dscr_idx, u32 asic_type)
+ u32 size, int direction,
+ u32 pte_offset, u16 ch,
+ u32 sram_bank, u16 dma_dscr_idx,
+ u32 asic_type)
{
u16 i;
acp_dma_dscr_transfer_t dmadscr[NUM_DSCRS_PER_CHANNEL];
dmadscr[i].xfer_val = 0;
if (direction == SNDRV_PCM_STREAM_PLAYBACK) {
dma_dscr_idx = dma_dscr_idx + i;
- dmadscr[i].dest = sram_bank + (i * (size/2));
+ dmadscr[i].dest = sram_bank + (i * (size / 2));
dmadscr[i].src = ACP_INTERNAL_APERTURE_WINDOW_0_ADDRESS
- + (pte_offset * SZ_4K) + (i * (size/2));
+ + (pte_offset * SZ_4K) + (i * (size / 2));
switch (asic_type) {
case CHIP_STONEY:
dmadscr[i].xfer_val |=
- (ACP_DMA_ATTRIBUTES_DAGB_GARLIC_TO_SHAREDMEM << 16) |
+ (ACP_DMA_ATTR_DAGB_GARLIC_TO_SHAREDMEM << 16) |
(size / 2);
break;
default:
dmadscr[i].xfer_val |=
- (ACP_DMA_ATTRIBUTES_DAGB_ONION_TO_SHAREDMEM << 16) |
+ (ACP_DMA_ATTR_DAGB_ONION_TO_SHAREDMEM << 16) |
(size / 2);
}
} else {
dma_dscr_idx = dma_dscr_idx + i;
- dmadscr[i].src = sram_bank + (i * (size/2));
+ dmadscr[i].src = sram_bank + (i * (size / 2));
dmadscr[i].dest =
ACP_INTERNAL_APERTURE_WINDOW_0_ADDRESS +
- (pte_offset * SZ_4K) + (i * (size/2));
+ (pte_offset * SZ_4K) + (i * (size / 2));
switch (asic_type) {
case CHIP_STONEY:
dmadscr[i].xfer_val |=
BIT(22) |
- (ACP_DMA_ATTRIBUTES_SHARED_MEM_TO_DAGB_GARLIC << 16) |
+ (ACP_DMA_ATTR_SHARED_MEM_TO_DAGB_GARLIC << 16) |
(size / 2);
break;
default:
dmadscr[i].xfer_val |=
BIT(22) |
- (ACP_DMA_ATTRIBUTES_SHAREDMEM_TO_DAGB_ONION << 16) |
+ (ACP_DMA_ATTR_SHAREDMEM_TO_DAGB_ONION << 16) |
(size / 2);
}
}
config_dma_descriptor_in_sram(acp_mmio, dma_dscr_idx,
- &dmadscr[i]);
+ &dmadscr[i]);
}
config_acp_dma_channel(acp_mmio, ch,
- dma_dscr_idx - 1,
- NUM_DSCRS_PER_CHANNEL,
- ACP_DMA_PRIORITY_LEVEL_NORMAL);
+ dma_dscr_idx - 1,
+ NUM_DSCRS_PER_CHANNEL,
+ ACP_DMA_PRIORITY_LEVEL_NORMAL);
}
-/* Initialize the DMA descriptor information for transfer between
+/*
+ * Initialize the DMA descriptor information for transfer between
* ACP SRAM <-> I2S
*/
static void set_acp_to_i2s_dma_descriptors(void __iomem *acp_mmio, u32 size,
- int direction, u32 sram_bank,
- u16 destination, u16 ch,
- u16 dma_dscr_idx, u32 asic_type)
+ int direction, u32 sram_bank,
+ u16 destination, u16 ch,
+ u16 dma_dscr_idx, u32 asic_type)
{
-
u16 i;
acp_dma_dscr_transfer_t dmadscr[NUM_DSCRS_PER_CHANNEL];
dmadscr[i].xfer_val = 0;
if (direction == SNDRV_PCM_STREAM_PLAYBACK) {
dma_dscr_idx = dma_dscr_idx + i;
- dmadscr[i].src = sram_bank + (i * (size/2));
+ dmadscr[i].src = sram_bank + (i * (size / 2));
/* dmadscr[i].dest is unused by hardware. */
dmadscr[i].dest = 0;
dmadscr[i].xfer_val |= BIT(22) | (destination << 16) |
(destination << 16) | (size / 2);
}
config_dma_descriptor_in_sram(acp_mmio, dma_dscr_idx,
- &dmadscr[i]);
+ &dmadscr[i]);
}
/* Configure the DMA channel with the above descriptore */
config_acp_dma_channel(acp_mmio, ch, dma_dscr_idx - 1,
- NUM_DSCRS_PER_CHANNEL,
- ACP_DMA_PRIORITY_LEVEL_NORMAL);
+ NUM_DSCRS_PER_CHANNEL,
+ ACP_DMA_PRIORITY_LEVEL_NORMAL);
}
/* Create page table entries in ACP SRAM for the allocated memory */
for (page_idx = 0; page_idx < (num_of_pages); page_idx++) {
/* Load the low address of page int ACP SRAM through SRBM */
acp_reg_write((offset + (page_idx * 8)),
- acp_mmio, mmACP_SRBM_Targ_Idx_Addr);
+ acp_mmio, mmACP_SRBM_Targ_Idx_Addr);
addr = page_to_phys(pg);
low = lower_32_bits(addr);
/* Load the High address of page int ACP SRAM through SRBM */
acp_reg_write((offset + (page_idx * 8) + 4),
- acp_mmio, mmACP_SRBM_Targ_Idx_Addr);
+ acp_mmio, mmACP_SRBM_Targ_Idx_Addr);
/* page enable in ACP */
high |= BIT(31);
}
static void config_acp_dma(void __iomem *acp_mmio,
- struct audio_substream_data *audio_config,
- u32 asic_type)
+ struct audio_substream_data *audio_config,
+ u32 asic_type)
{
u32 pte_offset, sram_bank;
u16 ch1, ch2, destination, dma_dscr_idx;
}
acp_pte_config(acp_mmio, audio_config->pg, audio_config->num_of_pages,
- pte_offset);
+ pte_offset);
if (audio_config->direction == SNDRV_PCM_STREAM_PLAYBACK)
dma_dscr_idx = PLAYBACK_START_DMA_DESCR_CH12;
else
/* Configure System memory <-> ACP SRAM DMA descriptors */
set_acp_sysmem_dma_descriptors(acp_mmio, audio_config->size,
- audio_config->direction, pte_offset,
- ch1, sram_bank, dma_dscr_idx, asic_type);
+ audio_config->direction, pte_offset, ch1,
+ sram_bank, dma_dscr_idx, asic_type);
if (audio_config->direction == SNDRV_PCM_STREAM_PLAYBACK)
dma_dscr_idx = PLAYBACK_START_DMA_DESCR_CH13;
dma_dscr_idx = CAPTURE_START_DMA_DESCR_CH15;
/* Configure ACP SRAM <-> I2S DMA descriptors */
set_acp_to_i2s_dma_descriptors(acp_mmio, audio_config->size,
- audio_config->direction, sram_bank,
- destination, ch2, dma_dscr_idx,
- asic_type);
+ audio_config->direction, sram_bank,
+ destination, ch2, dma_dscr_idx,
+ asic_type);
}
/* Start a given DMA channel transfer */
static void acp_dma_start(void __iomem *acp_mmio,
- u16 ch_num, bool is_circular)
+ u16 ch_num, bool is_circular)
{
u32 dma_ctrl;
/* Invalidating the DAGB cache */
acp_reg_write(1, acp_mmio, mmACP_DAGB_ATU_CTRL);
- /* configure the DMA channel and start the DMA transfer
+ /*
+ * configure the DMA channel and start the DMA transfer
* set dmachrun bit to start the transfer and enable the
* interrupt on completion of the dma transfer
*/
dma_ctrl = acp_reg_read(acp_mmio, mmACP_DMA_CNTL_0 + ch_num);
- /* clear the dma control register fields before writing zero
+ /*
+ * clear the dma control register fields before writing zero
* in reset bit
- */
+ */
dma_ctrl &= ~ACP_DMA_CNTL_0__DMAChRun_MASK;
dma_ctrl &= ~ACP_DMA_CNTL_0__DMAChIOCEn_MASK;
dma_ch_sts = acp_reg_read(acp_mmio, mmACP_DMA_CH_STS);
if (dma_ch_sts & BIT(ch_num)) {
- /* set the reset bit for this channel to stop the dma
- * transfer
- */
+ /*
+ * set the reset bit for this channel to stop the dma
+ * transfer
+ */
dma_ctrl |= ACP_DMA_CNTL_0__DMAChRst_MASK;
acp_reg_write(dma_ctrl, acp_mmio, mmACP_DMA_CNTL_0 + ch_num);
}
while (true) {
dma_ch_sts = acp_reg_read(acp_mmio, mmACP_DMA_CH_STS);
if (!(dma_ch_sts & BIT(ch_num))) {
- /* clear the reset flag after successfully stopping
- * the dma transfer and break from the loop
- */
+ /*
+ * clear the reset flag after successfully stopping
+ * the dma transfer and break from the loop
+ */
dma_ctrl &= ~ACP_DMA_CNTL_0__DMAChRst_MASK;
acp_reg_write(dma_ctrl, acp_mmio, mmACP_DMA_CNTL_0
- + ch_num);
+ + ch_num);
break;
}
if (--count == 0) {
}
static void acp_set_sram_bank_state(void __iomem *acp_mmio, u16 bank,
- bool power_on)
+ bool power_on)
{
u32 val, req_reg, sts_reg, sts_reg_mask;
u32 loops = 1000;
while (true) {
val = acp_reg_read(acp_mmio, mmACP_STATUS);
- if (val & (u32) 0x1)
+ if (val & (u32)0x1)
break;
if (--count == 0) {
pr_err("Failed to reset ACP\n");
/* initiailize Onion control DAGB register */
acp_reg_write(ACP_ONION_CNTL_DEFAULT, acp_mmio,
- mmACP_AXI2DAGB_ONION_CNTL);
+ mmACP_AXI2DAGB_ONION_CNTL);
/* initiailize Garlic control DAGB registers */
acp_reg_write(ACP_GARLIC_CNTL_DEFAULT, acp_mmio,
- mmACP_AXI2DAGB_GARLIC_CNTL);
+ mmACP_AXI2DAGB_GARLIC_CNTL);
sram_pte_offset = ACP_DAGB_GRP_SRAM_BASE_ADDRESS |
ACP_DAGB_BASE_ADDR_GRP_1__AXI2DAGBSnoopSel_MASK |
ACP_DAGB_BASE_ADDR_GRP_1__AXI2DAGBGrpEnable_MASK;
acp_reg_write(sram_pte_offset, acp_mmio, mmACP_DAGB_BASE_ADDR_GRP_1);
acp_reg_write(ACP_PAGE_SIZE_4K_ENABLE, acp_mmio,
- mmACP_DAGB_PAGE_SIZE_GRP_1);
+ mmACP_DAGB_PAGE_SIZE_GRP_1);
acp_reg_write(ACP_SRAM_BASE_ADDRESS, acp_mmio,
- mmACP_DMA_DESC_BASE_ADDR);
+ mmACP_DMA_DESC_BASE_ADDR);
/* Num of descriptiors in SRAM 0x4, means 256 descriptors;(64 * 4) */
acp_reg_write(0x4, acp_mmio, mmACP_DMA_DESC_MAX_NUM_DSCR);
acp_reg_write(ACP_EXTERNAL_INTR_CNTL__DMAIOCMask_MASK,
- acp_mmio, mmACP_EXTERNAL_INTR_CNTL);
+ acp_mmio, mmACP_EXTERNAL_INTR_CNTL);
- /* When ACP_TILE_P1 is turned on, all SRAM banks get turned on.
+ /*
+ * When ACP_TILE_P1 is turned on, all SRAM banks get turned on.
* Now, turn off all of them. This can't be done in 'poweron' of
* ACP pm domain, as this requires ACP to be initialized.
* For Stoney, Memory gating is disabled,i.e SRAM Banks
}
udelay(100);
}
- /** Disable ACP clock */
+ /* Disable ACP clock */
val = acp_reg_read(acp_mmio, mmACP_CONTROL);
val &= ~ACP_CONTROL__ClkEn_MASK;
acp_reg_write(val, acp_mmio, mmACP_CONTROL);
while (true) {
val = acp_reg_read(acp_mmio, mmACP_STATUS);
- if (!(val & (u32) 0x1))
+ if (!(val & (u32)0x1))
break;
if (--count == 0) {
pr_err("Failed to reset ACP\n");
snd_pcm_period_elapsed(irq_data->play_i2ssp_stream);
acp_reg_write((intr_flag & BIT(ACP_TO_I2S_DMA_CH_NUM)) << 16,
- acp_mmio, mmACP_EXTERNAL_INTR_STAT);
+ acp_mmio, mmACP_EXTERNAL_INTR_STAT);
}
if ((intr_flag & BIT(I2S_TO_ACP_DMA_CH_NUM)) != 0) {
acp_dma_start(acp_mmio, ACP_TO_SYSRAM_CH_NUM, false);
acp_reg_write((intr_flag & BIT(I2S_TO_ACP_DMA_CH_NUM)) << 16,
- acp_mmio, mmACP_EXTERNAL_INTR_STAT);
+ acp_mmio, mmACP_EXTERNAL_INTR_STAT);
}
if ((intr_flag & BIT(ACP_TO_SYSRAM_CH_NUM)) != 0) {
valid_irq = true;
snd_pcm_period_elapsed(irq_data->capture_i2ssp_stream);
acp_reg_write((intr_flag & BIT(ACP_TO_SYSRAM_CH_NUM)) << 16,
- acp_mmio, mmACP_EXTERNAL_INTR_STAT);
+ acp_mmio, mmACP_EXTERNAL_INTR_STAT);
}
if (valid_irq)
int ret = 0;
struct snd_pcm_runtime *runtime = substream->runtime;
struct snd_soc_pcm_runtime *prtd = substream->private_data;
- struct snd_soc_component *component = snd_soc_rtdcom_lookup(prtd, DRV_NAME);
+ struct snd_soc_component *component = snd_soc_rtdcom_lookup(prtd,
+ DRV_NAME);
struct audio_drv_data *intr_data = dev_get_drvdata(component->dev);
struct audio_substream_data *adata =
kzalloc(sizeof(struct audio_substream_data), GFP_KERNEL);
- if (adata == NULL)
+ if (!adata)
return -ENOMEM;
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
adata->acp_mmio = intr_data->acp_mmio;
runtime->private_data = adata;
- /* Enable ACP irq, when neither playback or capture streams are
+ /*
+ * Enable ACP irq, when neither playback or capture streams are
* active by the time when a new stream is being opened.
* This enablement is not required for another stream, if current
* stream is not closed
- */
+ */
if (!intr_data->play_i2ssp_stream && !intr_data->capture_i2ssp_stream)
acp_reg_write(1, adata->acp_mmio, mmACP_EXTERNAL_INTR_ENB);
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
intr_data->play_i2ssp_stream = substream;
- /* For Stoney, Memory gating is disabled,i.e SRAM Banks
+ /*
+ * For Stoney, Memory gating is disabled,i.e SRAM Banks
* won't be turned off. The default state for SRAM banks is ON.
* Setting SRAM bank state code skipped for STONEY platform.
*/
struct snd_pcm_runtime *runtime;
struct audio_substream_data *rtd;
struct snd_soc_pcm_runtime *prtd = substream->private_data;
- struct snd_soc_component *component = snd_soc_rtdcom_lookup(prtd, DRV_NAME);
+ struct snd_soc_component *component = snd_soc_rtdcom_lookup(prtd,
+ DRV_NAME);
struct audio_drv_data *adata = dev_get_drvdata(component->dev);
runtime = substream->runtime;
return -EINVAL;
if (adata->asic_type == CHIP_STONEY) {
- val = acp_reg_read(adata->acp_mmio, mmACP_I2S_16BIT_RESOLUTION_EN);
+ val = acp_reg_read(adata->acp_mmio,
+ mmACP_I2S_16BIT_RESOLUTION_EN);
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
val |= ACP_I2S_SP_16BIT_RESOLUTION_EN;
else
val |= ACP_I2S_MIC_16BIT_RESOLUTION_EN;
- acp_reg_write(val, adata->acp_mmio, mmACP_I2S_16BIT_RESOLUTION_EN);
+ acp_reg_write(val, adata->acp_mmio,
+ mmACP_I2S_16BIT_RESOLUTION_EN);
}
size = params_buffer_bytes(params);
status = snd_pcm_lib_malloc_pages(substream, size);
memset(substream->runtime->dma_area, 0, params_buffer_bytes(params));
pg = virt_to_page(substream->dma_buffer.area);
- if (pg != NULL) {
+ if (pg) {
acp_set_sram_bank_state(rtd->acp_mmio, 0, true);
/* Save for runtime private data */
rtd->pg = pg;
return -EINVAL;
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
config_acp_dma_channel(rtd->acp_mmio, SYSRAM_TO_ACP_CH_NUM,
- PLAYBACK_START_DMA_DESCR_CH12,
- NUM_DSCRS_PER_CHANNEL, 0);
+ PLAYBACK_START_DMA_DESCR_CH12,
+ NUM_DSCRS_PER_CHANNEL, 0);
config_acp_dma_channel(rtd->acp_mmio, ACP_TO_I2S_DMA_CH_NUM,
- PLAYBACK_START_DMA_DESCR_CH13,
- NUM_DSCRS_PER_CHANNEL, 0);
+ PLAYBACK_START_DMA_DESCR_CH13,
+ NUM_DSCRS_PER_CHANNEL, 0);
} else {
config_acp_dma_channel(rtd->acp_mmio, ACP_TO_SYSRAM_CH_NUM,
- CAPTURE_START_DMA_DESCR_CH14,
- NUM_DSCRS_PER_CHANNEL, 0);
+ CAPTURE_START_DMA_DESCR_CH14,
+ NUM_DSCRS_PER_CHANNEL, 0);
config_acp_dma_channel(rtd->acp_mmio, I2S_TO_ACP_DMA_CH_NUM,
- CAPTURE_START_DMA_DESCR_CH15,
- NUM_DSCRS_PER_CHANNEL, 0);
+ CAPTURE_START_DMA_DESCR_CH15,
+ NUM_DSCRS_PER_CHANNEL, 0);
}
return 0;
}
struct snd_pcm_runtime *runtime = substream->runtime;
struct snd_soc_pcm_runtime *prtd = substream->private_data;
struct audio_substream_data *rtd = runtime->private_data;
- struct snd_soc_component *component = snd_soc_rtdcom_lookup(prtd, DRV_NAME);
+ struct snd_soc_component *component = snd_soc_rtdcom_lookup(prtd,
+ DRV_NAME);
if (!rtd)
return -EINVAL;
if (rtd->i2ssp_renderbytescount == 0)
rtd->i2ssp_renderbytescount = bytescount;
acp_dma_start(rtd->acp_mmio,
- SYSRAM_TO_ACP_CH_NUM, false);
+ SYSRAM_TO_ACP_CH_NUM, false);
while (acp_reg_read(rtd->acp_mmio, mmACP_DMA_CH_STS) &
BIT(SYSRAM_TO_ACP_CH_NUM)) {
if (!loops--) {
}
acp_dma_start(rtd->acp_mmio,
- ACP_TO_I2S_DMA_CH_NUM, true);
+ ACP_TO_I2S_DMA_CH_NUM, true);
} else {
if (rtd->i2ssp_capturebytescount == 0)
rtd->i2ssp_capturebytescount = bytescount;
acp_dma_start(rtd->acp_mmio,
- I2S_TO_ACP_DMA_CH_NUM, true);
+ I2S_TO_ACP_DMA_CH_NUM, true);
}
ret = 0;
break;
case SNDRV_PCM_TRIGGER_STOP:
case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
case SNDRV_PCM_TRIGGER_SUSPEND:
- /* Need to stop only circular DMA channels :
+ /*
+ * Need to stop only circular DMA channels :
* ACP_TO_I2S_DMA_CH_NUM / I2S_TO_ACP_DMA_CH_NUM. Non-circular
* channels will stopped automatically after its transfer
* completes : SYSRAM_TO_ACP_CH_NUM / ACP_TO_SYSRAM_CH_NUM
*/
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
ret = acp_dma_stop(rtd->acp_mmio,
- SYSRAM_TO_ACP_CH_NUM);
+ SYSRAM_TO_ACP_CH_NUM);
ret = acp_dma_stop(rtd->acp_mmio,
- ACP_TO_I2S_DMA_CH_NUM);
+ ACP_TO_I2S_DMA_CH_NUM);
rtd->i2ssp_renderbytescount = 0;
} else {
ret = acp_dma_stop(rtd->acp_mmio,
- I2S_TO_ACP_DMA_CH_NUM);
+ I2S_TO_ACP_DMA_CH_NUM);
ret = acp_dma_stop(rtd->acp_mmio,
- ACP_TO_SYSRAM_CH_NUM);
+ ACP_TO_SYSRAM_CH_NUM);
rtd->i2ssp_capturebytescount = 0;
}
break;
default:
ret = -EINVAL;
-
}
return ret;
}
static int acp_dma_new(struct snd_soc_pcm_runtime *rtd)
{
int ret;
- struct snd_soc_component *component = snd_soc_rtdcom_lookup(rtd, DRV_NAME);
+ struct snd_soc_component *component = snd_soc_rtdcom_lookup(rtd,
+ DRV_NAME);
struct audio_drv_data *adata = dev_get_drvdata(component->dev);
switch (adata->asic_type) {
case CHIP_STONEY:
ret = snd_pcm_lib_preallocate_pages_for_all(rtd->pcm,
- SNDRV_DMA_TYPE_DEV,
- NULL, ST_MIN_BUFFER,
- ST_MAX_BUFFER);
+ SNDRV_DMA_TYPE_DEV,
+ NULL, ST_MIN_BUFFER,
+ ST_MAX_BUFFER);
break;
default:
ret = snd_pcm_lib_preallocate_pages_for_all(rtd->pcm,
- SNDRV_DMA_TYPE_DEV,
- NULL, MIN_BUFFER,
- MAX_BUFFER);
+ SNDRV_DMA_TYPE_DEV,
+ NULL, MIN_BUFFER,
+ MAX_BUFFER);
break;
}
if (ret < 0)
dev_err(component->dev,
- "buffer preallocation failer error:%d\n", ret);
+ "buffer preallocation failer error:%d\n", ret);
return ret;
}
struct snd_pcm_runtime *runtime = substream->runtime;
struct audio_substream_data *rtd = runtime->private_data;
struct snd_soc_pcm_runtime *prtd = substream->private_data;
- struct snd_soc_component *component = snd_soc_rtdcom_lookup(prtd, DRV_NAME);
+ struct snd_soc_component *component = snd_soc_rtdcom_lookup(prtd,
+ DRV_NAME);
struct audio_drv_data *adata = dev_get_drvdata(component->dev);
kfree(rtd);
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
adata->play_i2ssp_stream = NULL;
- /* For Stoney, Memory gating is disabled,i.e SRAM Banks
+ /*
+ * For Stoney, Memory gating is disabled,i.e SRAM Banks
* won't be turned off. The default state for SRAM banks is ON.
* Setting SRAM bank state code skipped for STONEY platform.
* added condition checks for Carrizo platform only
if (adata->asic_type != CHIP_STONEY) {
for (bank = 1; bank <= 4; bank++)
acp_set_sram_bank_state(adata->acp_mmio, bank,
- false);
+ false);
}
} else {
adata->capture_i2ssp_stream = NULL;
if (adata->asic_type != CHIP_STONEY) {
for (bank = 5; bank <= 8; bank++)
acp_set_sram_bank_state(adata->acp_mmio, bank,
- false);
+ false);
}
}
- /* Disable ACP irq, when the current stream is being closed and
+ /*
+ * Disable ACP irq, when the current stream is being closed and
* another stream is also not active.
- */
+ */
if (!adata->play_i2ssp_stream && !adata->capture_i2ssp_stream)
acp_reg_write(0, adata->acp_mmio, mmACP_EXTERNAL_INTR_ENB);
.prepare = acp_dma_prepare,
};
-static struct snd_soc_component_driver acp_asoc_platform = {
+static const struct snd_soc_component_driver acp_asoc_platform = {
.name = DRV_NAME,
.ops = &acp_dma_ops,
.pcm_new = acp_dma_new,
}
audio_drv_data = devm_kzalloc(&pdev->dev, sizeof(struct audio_drv_data),
- GFP_KERNEL);
- if (audio_drv_data == NULL)
+ GFP_KERNEL);
+ if (!audio_drv_data)
return -ENOMEM;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (IS_ERR(audio_drv_data->acp_mmio))
return PTR_ERR(audio_drv_data->acp_mmio);
- /* The following members gets populated in device 'open'
+ /*
+ * The following members gets populated in device 'open'
* function. Till then interrupts are disabled in 'acp_init'
* and device doesn't generate any interrupts.
*/
}
status = devm_request_irq(&pdev->dev, res->start, dma_irq_handler,
- 0, "ACP_IRQ", &pdev->dev);
+ 0, "ACP_IRQ", &pdev->dev);
if (status) {
dev_err(&pdev->dev, "ACP IRQ request failed\n");
return status;
}
status = devm_snd_soc_register_component(&pdev->dev,
- &acp_asoc_platform, NULL, 0);
+ &acp_asoc_platform, NULL, 0);
if (status != 0) {
dev_err(&pdev->dev, "Fail to register ALSA platform device\n");
return status;
}
if (adata->play_i2ssp_stream && adata->play_i2ssp_stream->runtime) {
- /* For Stoney, Memory gating is disabled,i.e SRAM Banks
+ /*
+ * For Stoney, Memory gating is disabled,i.e SRAM Banks
* won't be turned off. The default state for SRAM banks is ON.
* Setting SRAM bank state code skipped for STONEY platform.
*/
if (adata->asic_type != CHIP_STONEY) {
for (bank = 1; bank <= 4; bank++)
acp_set_sram_bank_state(adata->acp_mmio, bank,
- true);
+ true);
}
config_acp_dma(adata->acp_mmio,
- adata->play_i2ssp_stream->runtime->private_data,
- adata->asic_type);
+ adata->play_i2ssp_stream->runtime->private_data,
+ adata->asic_type);
}
- if (adata->capture_i2ssp_stream && adata->capture_i2ssp_stream->runtime) {
+ if (adata->capture_i2ssp_stream &&
+ adata->capture_i2ssp_stream->runtime) {
if (adata->asic_type != CHIP_STONEY) {
for (bank = 5; bank <= 8; bank++)
acp_set_sram_bank_state(adata->acp_mmio, bank,
- true);
+ true);
}
config_acp_dma(adata->acp_mmio,
- adata->capture_i2ssp_stream->runtime->private_data,
- adata->asic_type);
+ adata->capture_i2ssp_stream->runtime->private_data,
+ adata->asic_type);
}
acp_reg_write(1, adata->acp_mmio, mmACP_EXTERNAL_INTR_ENB);
return 0;
projects / platform / kernel / linux-rpi3.git / commitdiff