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>
This commit is contained in:
parent
327e697025
commit
e2b35f3dbf
|
@ -1353,7 +1353,6 @@ at32_add_device_mci(unsigned int id, struct mci_platform_data *data)
|
|||
goto fail;
|
||||
|
||||
slave->sdata.dma_dev = &dw_dmac0_device.dev;
|
||||
slave->sdata.reg_width = DW_DMA_SLAVE_WIDTH_32BIT;
|
||||
slave->sdata.cfg_hi = (DWC_CFGH_SRC_PER(0)
|
||||
| DWC_CFGH_DST_PER(1));
|
||||
slave->sdata.cfg_lo &= ~(DWC_CFGL_HS_DST_POL
|
||||
|
@ -2048,27 +2047,19 @@ at32_add_device_ac97c(unsigned int id, struct ac97c_platform_data *data,
|
|||
/* Check if DMA slave interface for capture should be configured. */
|
||||
if (flags & AC97C_CAPTURE) {
|
||||
rx_dws->dma_dev = &dw_dmac0_device.dev;
|
||||
rx_dws->reg_width = DW_DMA_SLAVE_WIDTH_16BIT;
|
||||
rx_dws->cfg_hi = DWC_CFGH_SRC_PER(3);
|
||||
rx_dws->cfg_lo &= ~(DWC_CFGL_HS_DST_POL | DWC_CFGL_HS_SRC_POL);
|
||||
rx_dws->src_master = 0;
|
||||
rx_dws->dst_master = 1;
|
||||
rx_dws->src_msize = DW_DMA_MSIZE_1;
|
||||
rx_dws->dst_msize = DW_DMA_MSIZE_1;
|
||||
rx_dws->fc = DW_DMA_FC_D_P2M;
|
||||
}
|
||||
|
||||
/* Check if DMA slave interface for playback should be configured. */
|
||||
if (flags & AC97C_PLAYBACK) {
|
||||
tx_dws->dma_dev = &dw_dmac0_device.dev;
|
||||
tx_dws->reg_width = DW_DMA_SLAVE_WIDTH_16BIT;
|
||||
tx_dws->cfg_hi = DWC_CFGH_DST_PER(4);
|
||||
tx_dws->cfg_lo &= ~(DWC_CFGL_HS_DST_POL | DWC_CFGL_HS_SRC_POL);
|
||||
tx_dws->src_master = 0;
|
||||
tx_dws->dst_master = 1;
|
||||
tx_dws->src_msize = DW_DMA_MSIZE_1;
|
||||
tx_dws->dst_msize = DW_DMA_MSIZE_1;
|
||||
tx_dws->fc = DW_DMA_FC_D_M2P;
|
||||
}
|
||||
|
||||
if (platform_device_add_data(pdev, data,
|
||||
|
@ -2138,14 +2129,10 @@ at32_add_device_abdac(unsigned int id, struct atmel_abdac_pdata *data)
|
|||
dws = &data->dws;
|
||||
|
||||
dws->dma_dev = &dw_dmac0_device.dev;
|
||||
dws->reg_width = DW_DMA_SLAVE_WIDTH_32BIT;
|
||||
dws->cfg_hi = DWC_CFGH_DST_PER(2);
|
||||
dws->cfg_lo &= ~(DWC_CFGL_HS_DST_POL | DWC_CFGL_HS_SRC_POL);
|
||||
dws->src_master = 0;
|
||||
dws->dst_master = 1;
|
||||
dws->src_msize = DW_DMA_MSIZE_1;
|
||||
dws->dst_msize = DW_DMA_MSIZE_1;
|
||||
dws->fc = DW_DMA_FC_D_M2P;
|
||||
|
||||
if (platform_device_add_data(pdev, data,
|
||||
sizeof(struct atmel_abdac_pdata)))
|
||||
|
|
|
@ -14,11 +14,4 @@ struct mci_dma_data {
|
|||
#define slave_data_ptr(s) (&(s)->sdata)
|
||||
#define find_slave_dev(s) ((s)->sdata.dma_dev)
|
||||
|
||||
#define setup_dma_addr(s, t, r) do { \
|
||||
if (s) { \
|
||||
(s)->sdata.tx_reg = (t); \
|
||||
(s)->sdata.rx_reg = (r); \
|
||||
} \
|
||||
} while (0)
|
||||
|
||||
#endif /* __MACH_ATMEL_MCI_H */
|
||||
|
|
|
@ -24,6 +24,7 @@
|
|||
#include <linux/seq_file.h>
|
||||
#include <linux/slab.h>
|
||||
#include <linux/stat.h>
|
||||
#include <linux/types.h>
|
||||
|
||||
#include <linux/mmc/host.h>
|
||||
#include <linux/mmc/sdio.h>
|
||||
|
@ -173,6 +174,7 @@ struct atmel_mci {
|
|||
|
||||
struct atmel_mci_dma dma;
|
||||
struct dma_chan *data_chan;
|
||||
struct dma_slave_config dma_conf;
|
||||
|
||||
u32 cmd_status;
|
||||
u32 data_status;
|
||||
|
@ -863,15 +865,16 @@ atmci_prepare_data_dma(struct atmel_mci *host, struct mmc_data *data)
|
|||
|
||||
if (data->flags & MMC_DATA_READ) {
|
||||
direction = DMA_FROM_DEVICE;
|
||||
slave_dirn = DMA_DEV_TO_MEM;
|
||||
host->dma_conf.direction = slave_dirn = DMA_DEV_TO_MEM;
|
||||
} else {
|
||||
direction = DMA_TO_DEVICE;
|
||||
slave_dirn = DMA_MEM_TO_DEV;
|
||||
host->dma_conf.direction = slave_dirn = DMA_MEM_TO_DEV;
|
||||
}
|
||||
|
||||
sglen = dma_map_sg(chan->device->dev, data->sg,
|
||||
data->sg_len, direction);
|
||||
|
||||
dmaengine_slave_config(chan, &host->dma_conf);
|
||||
desc = chan->device->device_prep_slave_sg(chan,
|
||||
data->sg, sglen, slave_dirn,
|
||||
DMA_PREP_INTERRUPT | DMA_CTRL_ACK);
|
||||
|
@ -1957,22 +1960,27 @@ static void atmci_configure_dma(struct atmel_mci *host)
|
|||
if (pdata && find_slave_dev(pdata->dma_slave)) {
|
||||
dma_cap_mask_t mask;
|
||||
|
||||
setup_dma_addr(pdata->dma_slave,
|
||||
host->mapbase + ATMCI_TDR,
|
||||
host->mapbase + ATMCI_RDR);
|
||||
|
||||
/* Try to grab a DMA channel */
|
||||
dma_cap_zero(mask);
|
||||
dma_cap_set(DMA_SLAVE, mask);
|
||||
host->dma.chan =
|
||||
dma_request_channel(mask, atmci_filter, pdata->dma_slave);
|
||||
}
|
||||
if (!host->dma.chan)
|
||||
if (!host->dma.chan) {
|
||||
dev_notice(&host->pdev->dev, "DMA not available, using PIO\n");
|
||||
else
|
||||
} else {
|
||||
dev_info(&host->pdev->dev,
|
||||
"Using %s for DMA transfers\n",
|
||||
dma_chan_name(host->dma.chan));
|
||||
|
||||
host->dma_conf.src_addr = host->mapbase + ATMCI_RDR;
|
||||
host->dma_conf.src_addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES;
|
||||
host->dma_conf.src_maxburst = 1;
|
||||
host->dma_conf.dst_addr = host->mapbase + ATMCI_TDR;
|
||||
host->dma_conf.dst_addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES;
|
||||
host->dma_conf.dst_maxburst = 1;
|
||||
host->dma_conf.device_fc = false;
|
||||
}
|
||||
}
|
||||
|
||||
static inline unsigned int atmci_get_version(struct atmel_mci *host)
|
||||
|
|
|
@ -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");
|
||||
|
|
|
@ -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));
|
||||
|
|
Loading…
Reference in a new issue