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authorViresh Kumar <viresh.kumar@st.com>2012-02-01 16:12:27 +0530
committerVinod Koul <vinod.koul@linux.intel.com>2012-02-22 18:15:39 +0530
commite2b35f3dbfc080f15b72834d08f04f0269dbe9be (patch)
treefda60f8be147b57cf01155528dda33a9a99b0dab /sound/atmel
parent327e6970258618da810f72e86cf2a8b803927e14 (diff)
downloadlinux-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.c18
-rw-r--r--sound/atmel/ac97c.c41
2 files changed, 47 insertions, 12 deletions
diff --git a/sound/atmel/abdac.c b/sound/atmel/abdac.c
index 4fa1dbd8ee8..f7c2bb08055 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 61dade69835..115313ef54d 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));