[PATCH 04/21] ARM: davinci/common: Convert edma driver to handle one eDMA instance per driver

From: Peter Ujfalusi
Date: Thu Sep 10 2015 - 04:45:26 EST

Currently we have one device created to handle all (maximum 2) eDMAs in the
system.
With this change all eDMA instance will have it's own device/driver.
This change is needed for further cleanups in the eDMA driver stack since
the one device/driver to handle all eDMAs in the system was not flexible
enough and prevents the upcoming work.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@xxxxxx>
---
arch/arm/common/edma.c | 357 +++++++++++++++-------------------
arch/arm/mach-davinci/devices-da8xx.c | 110 ++++-------
arch/arm/mach-davinci/dm355.c | 21 +-
arch/arm/mach-davinci/dm365.c | 25 +--
arch/arm/mach-davinci/dm644x.c | 21 +-
arch/arm/mach-davinci/dm646x.c | 27 ++-
6 files changed, 235 insertions(+), 326 deletions(-)

diff --git a/arch/arm/common/edma.c b/arch/arm/common/edma.c
index e9c4cb16a47e..72fce68a959f 100644
--- a/arch/arm/common/edma.c
+++ b/arch/arm/common/edma.c
@@ -235,6 +235,7 @@ static inline void clear_bits(int offset, int len, unsigned long *p)

/* actual number of DMA channels and slots on this silicon */
struct edma {
+ struct device *dev;
/* how many dma resources of each type */
unsigned num_channels;
unsigned num_region;
@@ -246,6 +247,7 @@ struct edma {
const s8 *noevent;

struct edma_soc_info *info;
+ int id;

/* The edma_inuse bit for each PaRAM slot is clear unless the
* channel is in use ... by ARM or DSP, for QDMA, or whatever.
@@ -258,9 +260,6 @@ struct edma {
*/
DECLARE_BITMAP(edma_unused, EDMA_MAX_DMACH);

- unsigned irq_res_start;
- unsigned irq_res_end;
-
struct dma_interrupt_data {
void (*callback)(unsigned channel, unsigned short ch_status,
void *data);
@@ -349,17 +348,6 @@ setup_dma_interrupt(unsigned lch,
}
}

-static int irq2ctlr(int irq)
-{
- if (irq >= edma_cc[0]->irq_res_start && irq <= edma_cc[0]->irq_res_end)
- return 0;
- else if (irq >= edma_cc[1]->irq_res_start &&
- irq <= edma_cc[1]->irq_res_end)
- return 1;
-
- return -1;
-}
-
/******************************************************************************
*
* DMA interrupt handler
@@ -367,16 +355,17 @@ static int irq2ctlr(int irq)
*****************************************************************************/
static irqreturn_t dma_irq_handler(int irq, void *data)
{
+ struct edma *cc = data;
int ctlr;
u32 sh_ier;
u32 sh_ipr;
u32 bank;

- ctlr = irq2ctlr(irq);
+ ctlr = cc->id;
if (ctlr < 0)
return IRQ_NONE;

- dev_dbg(data, "dma_irq_handler\n");
+ dev_dbg(cc->dev, "dma_irq_handler\n");

sh_ipr = edma_shadow0_read_array(ctlr, SH_IPR, 0);
if (!sh_ipr) {
@@ -394,7 +383,7 @@ static irqreturn_t dma_irq_handler(int irq, void *data)
u32 slot;
u32 channel;

- dev_dbg(data, "IPR%d %08x\n", bank, sh_ipr);
+ dev_dbg(cc->dev, "IPR%d %08x\n", bank, sh_ipr);

slot = __ffs(sh_ipr);
sh_ipr &= ~(BIT(slot));
@@ -404,11 +393,11 @@ static irqreturn_t dma_irq_handler(int irq, void *data)
/* Clear the corresponding IPR bits */
edma_shadow0_write_array(ctlr, SH_ICR, bank,
BIT(slot));
- if (edma_cc[ctlr]->intr_data[channel].callback)
- edma_cc[ctlr]->intr_data[channel].callback(
+ if (cc->intr_data[channel].callback)
+ cc->intr_data[channel].callback(
EDMA_CTLR_CHAN(ctlr, channel),
EDMA_DMA_COMPLETE,
- edma_cc[ctlr]->intr_data[channel].data);
+ cc->intr_data[channel].data);
}
} while (sh_ipr);

@@ -423,15 +412,16 @@ static irqreturn_t dma_irq_handler(int irq, void *data)
*****************************************************************************/
static irqreturn_t dma_ccerr_handler(int irq, void *data)
{
+ struct edma *cc = data;
int i;
int ctlr;
unsigned int cnt = 0;

- ctlr = irq2ctlr(irq);
+ ctlr = cc->id;
if (ctlr < 0)
return IRQ_NONE;

- dev_dbg(data, "dma_ccerr_handler\n");
+ dev_dbg(cc->dev, "dma_ccerr_handler\n");

if ((edma_read_array(ctlr, EDMA_EMR, 0) == 0) &&
(edma_read_array(ctlr, EDMA_EMR, 1) == 0) &&
@@ -446,8 +436,8 @@ static irqreturn_t dma_ccerr_handler(int irq, void *data)
else if (edma_read_array(ctlr, EDMA_EMR, 1))
j = 1;
if (j >= 0) {
- dev_dbg(data, "EMR%d %08x\n", j,
- edma_read_array(ctlr, EDMA_EMR, j));
+ dev_dbg(cc->dev, "EMR%d %08x\n", j,
+ edma_read_array(ctlr, EDMA_EMR, j));
for (i = 0; i < 32; i++) {
int k = (j << 5) + i;
if (edma_read_array(ctlr, EDMA_EMR, j) &
@@ -458,19 +448,16 @@ static irqreturn_t dma_ccerr_handler(int irq, void *data)
/* Clear any SER */
edma_shadow0_write_array(ctlr, SH_SECR,
j, BIT(i));
- if (edma_cc[ctlr]->intr_data[k].
- callback) {
- edma_cc[ctlr]->intr_data[k].
- callback(
- EDMA_CTLR_CHAN(ctlr, k),
- EDMA_DMA_CC_ERROR,
- edma_cc[ctlr]->intr_data
- [k].data);
+ if (cc->intr_data[k].callback) {
+ cc->intr_data[k].callback(
+ EDMA_CTLR_CHAN(ctlr, k),
+ EDMA_DMA_CC_ERROR,
+ cc->intr_data[k].data);
}
}
}
} else if (edma_read(ctlr, EDMA_QEMR)) {
- dev_dbg(data, "QEMR %02x\n",
+ dev_dbg(cc->dev, "QEMR %02x\n",
edma_read(ctlr, EDMA_QEMR));
for (i = 0; i < 8; i++) {
if (edma_read(ctlr, EDMA_QEMR) & BIT(i)) {
@@ -483,7 +470,7 @@ static irqreturn_t dma_ccerr_handler(int irq, void *data)
}
}
} else if (edma_read(ctlr, EDMA_CCERR)) {
- dev_dbg(data, "CCERR %08x\n",
+ dev_dbg(cc->dev, "CCERR %08x\n",
edma_read(ctlr, EDMA_CCERR));
/* FIXME: CCERR.BIT(16) ignored! much better
* to just write CCERRCLR with CCERR value...
@@ -1239,21 +1226,19 @@ static struct edma_soc_info *edma_setup_info_from_dt(struct device *dev,

static int edma_probe(struct platform_device *pdev)
{
- struct edma_soc_info **info = pdev->dev.platform_data;
- struct edma_soc_info *ninfo[EDMA_MAX_CC] = {NULL};
+ struct edma_soc_info *info = pdev->dev.platform_data;
s8 (*queue_priority_mapping)[2];
- int i, j, off, ln, found = 0;
- int status = -1;
+ int i, off, ln;
const s16 (*rsv_chans)[2];
const s16 (*rsv_slots)[2];
const s16 (*xbar_chans)[2];
- int irq[EDMA_MAX_CC] = {0, 0};
- int err_irq[EDMA_MAX_CC] = {0, 0};
- struct resource *r[EDMA_MAX_CC] = {NULL};
- struct resource res[EDMA_MAX_CC];
- char res_name[10];
+ int irq;
+ char *irq_name;
+ struct resource *mem;
struct device_node *node = pdev->dev.of_node;
struct device *dev = &pdev->dev;
+ int dev_id = pdev->id;
+ struct edma *cc;
int ret;
struct platform_device_info edma_dev_info = {
.name = "edma-dma-engine",
@@ -1261,6 +1246,17 @@ static int edma_probe(struct platform_device *pdev)
.parent = &pdev->dev,
};

+ /* When booting with DT the pdev->id is -1 */
+ if (dev_id < 0)
+ dev_id = arch_num_cc;
+
+ if (dev_id >= EDMA_MAX_CC) {
+ dev_err(dev,
+ "eDMA3 with device id 0 and 1 is supported (id: %d)\n",
+ dev_id);
+ return -EINVAL;
+ }
+
if (node) {
/* Check if this is a second instance registered */
if (arch_num_cc) {
@@ -1268,13 +1264,11 @@ static int edma_probe(struct platform_device *pdev)
return -ENODEV;
}

- ninfo[0] = edma_setup_info_from_dt(dev, node);
- if (IS_ERR(ninfo[0])) {
+ info = edma_setup_info_from_dt(dev, node);
+ if (IS_ERR(info)) {
dev_err(dev, "failed to get DT data\n");
- return PTR_ERR(ninfo[0]);
+ return PTR_ERR(info);
}
-
- info = ninfo;
}

if (!info)
@@ -1287,154 +1281,133 @@ static int edma_probe(struct platform_device *pdev)
return ret;
}

- for (j = 0; j < EDMA_MAX_CC; j++) {
- if (!info[j]) {
- if (!found)
- return -ENODEV;
- break;
- }
- if (node) {
- ret = of_address_to_resource(node, j, &res[j]);
- if (!ret)
- r[j] = &res[j];
- } else {
- sprintf(res_name, "edma_cc%d", j);
- r[j] = platform_get_resource_byname(pdev,
- IORESOURCE_MEM,
- res_name);
- }
- if (!r[j]) {
- if (found)
- break;
- else
- return -ENODEV;
- } else {
- found = 1;
+ mem = platform_get_resource_byname(pdev, IORESOURCE_MEM, "edma3_cc");
+ if (!mem) {
+ dev_dbg(dev, "mem resource not found, using index 0\n");
+ mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (!mem) {
+ dev_err(dev, "no mem resource?\n");
+ return -ENODEV;
}
+ }

- edmacc_regs_base[j] = devm_ioremap_resource(&pdev->dev, r[j]);
- if (IS_ERR(edmacc_regs_base[j]))
- return PTR_ERR(edmacc_regs_base[j]);
+ edmacc_regs_base[dev_id] = devm_ioremap_resource(dev, mem);
+ if (IS_ERR(edmacc_regs_base[dev_id]))
+ return PTR_ERR(edmacc_regs_base[dev_id]);

- edma_cc[j] = devm_kzalloc(&pdev->dev, sizeof(struct edma),
- GFP_KERNEL);
- if (!edma_cc[j])
- return -ENOMEM;
+ edma_cc[dev_id] = devm_kzalloc(dev, sizeof(struct edma), GFP_KERNEL);
+ if (!edma_cc[dev_id])
+ return -ENOMEM;

- /* Get eDMA3 configuration from IP */
- ret = edma_setup_from_hw(dev, info[j], edma_cc[j], j);
- if (ret)
- return ret;
+ cc = edma_cc[dev_id];
+ cc->dev = dev;
+ cc->id = dev_id;
+ dev_set_drvdata(dev, cc);

- edma_cc[j]->default_queue = info[j]->default_queue;
+ /* Get eDMA3 configuration from IP */
+ ret = edma_setup_from_hw(dev, info, cc, dev_id);
+ if (ret)
+ return ret;

- dev_dbg(&pdev->dev, "DMA REG BASE ADDR=%p\n",
- edmacc_regs_base[j]);
+ cc->default_queue = info->default_queue;

- for (i = 0; i < edma_cc[j]->num_slots; i++)
- memcpy_toio(edmacc_regs_base[j] + PARM_OFFSET(i),
- &dummy_paramset, PARM_SIZE);
+ dev_dbg(dev, "DMA REG BASE ADDR=%p\n", edmacc_regs_base[dev_id]);

- /* Mark all channels as unused */
- memset(edma_cc[j]->edma_unused, 0xff,
- sizeof(edma_cc[j]->edma_unused));
+ for (i = 0; i < cc->num_slots; i++)
+ memcpy_toio(edmacc_regs_base[dev_id] + PARM_OFFSET(i),
+ &dummy_paramset, PARM_SIZE);

- if (info[j]->rsv) {
+ /* Mark all channels as unused */
+ memset(cc->edma_unused, 0xff, sizeof(cc->edma_unused));

- /* Clear the reserved channels in unused list */
- rsv_chans = info[j]->rsv->rsv_chans;
- if (rsv_chans) {
- for (i = 0; rsv_chans[i][0] != -1; i++) {
- off = rsv_chans[i][0];
- ln = rsv_chans[i][1];
- clear_bits(off, ln,
- edma_cc[j]->edma_unused);
- }
- }
+ if (info->rsv) {

- /* Set the reserved slots in inuse list */
- rsv_slots = info[j]->rsv->rsv_slots;
- if (rsv_slots) {
- for (i = 0; rsv_slots[i][0] != -1; i++) {
- off = rsv_slots[i][0];
- ln = rsv_slots[i][1];
- set_bits(off, ln,
- edma_cc[j]->edma_inuse);
- }
+ /* Clear the reserved channels in unused list */
+ rsv_chans = info->rsv->rsv_chans;
+ if (rsv_chans) {
+ for (i = 0; rsv_chans[i][0] != -1; i++) {
+ off = rsv_chans[i][0];
+ ln = rsv_chans[i][1];
+ clear_bits(off, ln, cc->edma_unused);
}
}

- /* Clear the xbar mapped channels in unused list */
- xbar_chans = info[j]->xbar_chans;
- if (xbar_chans) {
- for (i = 0; xbar_chans[i][1] != -1; i++) {
- off = xbar_chans[i][1];
- clear_bits(off, 1,
- edma_cc[j]->edma_unused);
+ /* Set the reserved slots in inuse list */
+ rsv_slots = info->rsv->rsv_slots;
+ if (rsv_slots) {
+ for (i = 0; rsv_slots[i][0] != -1; i++) {
+ off = rsv_slots[i][0];
+ ln = rsv_slots[i][1];
+ set_bits(off, ln, cc->edma_inuse);
}
}
+ }

- if (node) {
- irq[j] = irq_of_parse_and_map(node, 0);
- err_irq[j] = irq_of_parse_and_map(node, 2);
- } else {
- char irq_name[10];
-
- sprintf(irq_name, "edma%d", j);
- irq[j] = platform_get_irq_byname(pdev, irq_name);
-
- sprintf(irq_name, "edma%d_err", j);
- err_irq[j] = platform_get_irq_byname(pdev, irq_name);
- }
- edma_cc[j]->irq_res_start = irq[j];
- edma_cc[j]->irq_res_end = err_irq[j];
-
- status = devm_request_irq(dev, irq[j], dma_irq_handler, 0,
- "edma", dev);
- if (status < 0) {
- dev_dbg(&pdev->dev,
- "devm_request_irq %d failed --> %d\n",
- irq[j], status);
- return status;
+ /* Clear the xbar mapped channels in unused list */
+ xbar_chans = info->xbar_chans;
+ if (xbar_chans) {
+ for (i = 0; xbar_chans[i][1] != -1; i++) {
+ off = xbar_chans[i][1];
+ clear_bits(off, 1, cc->edma_unused);
}
+ }

- status = devm_request_irq(dev, err_irq[j], dma_ccerr_handler, 0,
- "edma_error", dev);
- if (status < 0) {
- dev_dbg(&pdev->dev,
- "devm_request_irq %d failed --> %d\n",
- err_irq[j], status);
- return status;
+ irq = platform_get_irq_byname(pdev, "edma3_ccint");
+ if (irq < 0 && node)
+ irq = irq_of_parse_and_map(node, 0);
+
+ if (irq >= 0) {
+ irq_name = devm_kasprintf(dev, GFP_KERNEL, "%s_ccint\n",
+ dev_name(dev));
+ ret = devm_request_irq(dev, irq, dma_irq_handler, 0, irq_name,
+ cc);
+ if (ret) {
+ dev_err(dev, "CCINT (%d) failed --> %d\n", irq, ret);
+ return ret;
}
+ }

- for (i = 0; i < edma_cc[j]->num_channels; i++)
- map_dmach_queue(j, i, info[j]->default_queue);
+ irq = platform_get_irq_byname(pdev, "edma3_ccerrint");
+ if (irq < 0 && node)
+ irq = irq_of_parse_and_map(node, 2);
+
+ if (irq >= 0) {
+ irq_name = devm_kasprintf(dev, GFP_KERNEL,
+ "%s_ccerrint\n",
+ dev_name(dev));
+ ret = devm_request_irq(dev, irq, dma_ccerr_handler, 0, irq_name,
+ cc);
+ if (ret) {
+ dev_err(dev, "CCERRINT (%d) failed --> %d\n", irq, ret);
+ return ret;
+ }
+ }

- queue_priority_mapping = info[j]->queue_priority_mapping;
+ for (i = 0; i < cc->num_channels; i++)
+ map_dmach_queue(dev_id, i, info->default_queue);

- /* Event queue priority mapping */
- for (i = 0; queue_priority_mapping[i][0] != -1; i++)
- assign_priority_to_queue(j,
- queue_priority_mapping[i][0],
- queue_priority_mapping[i][1]);
+ queue_priority_mapping = info->queue_priority_mapping;

- /* Map the channel to param entry if channel mapping logic
- * exist
- */
- if (edma_read(j, EDMA_CCCFG) & CHMAP_EXIST)
- map_dmach_param(j);
+ /* Event queue priority mapping */
+ for (i = 0; queue_priority_mapping[i][0] != -1; i++)
+ assign_priority_to_queue(dev_id, queue_priority_mapping[i][0],
+ queue_priority_mapping[i][1]);

- for (i = 0; i < edma_cc[j]->num_region; i++) {
- edma_write_array2(j, EDMA_DRAE, i, 0, 0x0);
- edma_write_array2(j, EDMA_DRAE, i, 1, 0x0);
- edma_write_array(j, EDMA_QRAE, i, 0x0);
- }
- edma_cc[j]->info = info[j];
- arch_num_cc++;
+ /* Map the channel to param entry if channel mapping logic exist */
+ if (edma_read(dev_id, EDMA_CCCFG) & CHMAP_EXIST)
+ map_dmach_param(dev_id);

- edma_dev_info.id = j;
- platform_device_register_full(&edma_dev_info);
+ for (i = 0; i < cc->num_region; i++) {
+ edma_write_array2(dev_id, EDMA_DRAE, i, 0, 0x0);
+ edma_write_array2(dev_id, EDMA_DRAE, i, 1, 0x0);
+ edma_write_array(dev_id, EDMA_QRAE, i, 0x0);
}
+ cc->info = info;
+ arch_num_cc++;
+
+ edma_dev_info.id = dev_id;
+
+ platform_device_register_full(&edma_dev_info);

return 0;
}
@@ -1442,38 +1415,30 @@ static int edma_probe(struct platform_device *pdev)
#ifdef CONFIG_PM_SLEEP
static int edma_pm_resume(struct device *dev)
{
- int i, j;
+ struct edma *cc = dev_get_drvdata(dev);
+ int i;
+ s8 (*queue_priority_mapping)[2];

- for (j = 0; j < arch_num_cc; j++) {
- struct edma *cc = edma_cc[j];
+ queue_priority_mapping = cc->info->queue_priority_mapping;

- s8 (*queue_priority_mapping)[2];
+ /* Event queue priority mapping */
+ for (i = 0; queue_priority_mapping[i][0] != -1; i++)
+ assign_priority_to_queue(cc->id, queue_priority_mapping[i][0],
+ queue_priority_mapping[i][1]);

- queue_priority_mapping = cc->info->queue_priority_mapping;
+ /* Map the channel to param entry if channel mapping logic */
+ if (edma_read(cc->id, EDMA_CCCFG) & CHMAP_EXIST)
+ map_dmach_param(cc->id);

- /* Event queue priority mapping */
- for (i = 0; queue_priority_mapping[i][0] != -1; i++)
- assign_priority_to_queue(j,
- queue_priority_mapping[i][0],
- queue_priority_mapping[i][1]);
+ for (i = 0; i < cc->num_channels; i++) {
+ if (test_bit(i, cc->edma_inuse)) {
+ /* ensure access through shadow region 0 */
+ edma_or_array2(cc->id, EDMA_DRAE, 0, i >> 5,
+ BIT(i & 0x1f));

- /*
- * Map the channel to param entry if channel mapping logic
- * exist
- */
- if (edma_read(j, EDMA_CCCFG) & CHMAP_EXIST)
- map_dmach_param(j);
-
- for (i = 0; i < cc->num_channels; i++) {
- if (test_bit(i, cc->edma_inuse)) {
- /* ensure access through shadow region 0 */
- edma_or_array2(j, EDMA_DRAE, 0, i >> 5,
- BIT(i & 0x1f));
-
- setup_dma_interrupt(i,
- cc->intr_data[i].callback,
- cc->intr_data[i].data);
- }
+ setup_dma_interrupt(EDMA_CTLR_CHAN(cc->id, i),
+ cc->intr_data[i].callback,
+ cc->intr_data[i].data);
}
}

diff --git a/arch/arm/mach-davinci/devices-da8xx.c b/arch/arm/mach-davinci/devices-da8xx.c
index 29e08aac8294..9ae049ae816a 100644
--- a/arch/arm/mach-davinci/devices-da8xx.c
+++ b/arch/arm/mach-davinci/devices-da8xx.c
@@ -147,150 +147,114 @@ static s8 da850_queue_priority_mapping[][2] = {
{-1, -1}
};

-static struct edma_soc_info da830_edma_cc0_info = {
+static struct edma_soc_info da8xx_edma0_pdata = {
.queue_priority_mapping = da8xx_queue_priority_mapping,
.default_queue = EVENTQ_1,
};

-static struct edma_soc_info *da830_edma_info[EDMA_MAX_CC] = {
- &da830_edma_cc0_info,
+static struct edma_soc_info da850_edma1_pdata = {
+ .queue_priority_mapping = da850_queue_priority_mapping,
+ .default_queue = EVENTQ_0,
};

-static struct edma_soc_info da850_edma_cc_info[] = {
+static struct resource da8xx_edma0_resources[] = {
{
- .queue_priority_mapping = da8xx_queue_priority_mapping,
- .default_queue = EVENTQ_1,
- },
- {
- .queue_priority_mapping = da850_queue_priority_mapping,
- .default_queue = EVENTQ_0,
- },
-};
-
-static struct edma_soc_info *da850_edma_info[EDMA_MAX_CC] = {
- &da850_edma_cc_info[0],
- &da850_edma_cc_info[1],
-};
-
-static struct resource da830_edma_resources[] = {
- {
- .name = "edma_cc0",
+ .name = "edma3_cc",
.start = DA8XX_TPCC_BASE,
.end = DA8XX_TPCC_BASE + SZ_32K - 1,
.flags = IORESOURCE_MEM,
},
{
- .name = "edma_tc0",
+ .name = "edma3_tc0",
.start = DA8XX_TPTC0_BASE,
.end = DA8XX_TPTC0_BASE + SZ_1K - 1,
.flags = IORESOURCE_MEM,
},
{
- .name = "edma_tc1",
+ .name = "edma3_tc1",
.start = DA8XX_TPTC1_BASE,
.end = DA8XX_TPTC1_BASE + SZ_1K - 1,
.flags = IORESOURCE_MEM,
},
{
- .name = "edma0",
+ .name = "edma3_ccint",
.start = IRQ_DA8XX_CCINT0,
.flags = IORESOURCE_IRQ,
},
{
- .name = "edma0_err",
+ .name = "edma3_ccerrint",
.start = IRQ_DA8XX_CCERRINT,
.flags = IORESOURCE_IRQ,
},
};

-static struct resource da850_edma_resources[] = {
- {
- .name = "edma_cc0",
- .start = DA8XX_TPCC_BASE,
- .end = DA8XX_TPCC_BASE + SZ_32K - 1,
- .flags = IORESOURCE_MEM,
- },
- {
- .name = "edma_tc0",
- .start = DA8XX_TPTC0_BASE,
- .end = DA8XX_TPTC0_BASE + SZ_1K - 1,
- .flags = IORESOURCE_MEM,
- },
+static struct resource da850_edma1_resources[] = {
{
- .name = "edma_tc1",
- .start = DA8XX_TPTC1_BASE,
- .end = DA8XX_TPTC1_BASE + SZ_1K - 1,
- .flags = IORESOURCE_MEM,
- },
- {
- .name = "edma_cc1",
+ .name = "edma3_cc",
.start = DA850_TPCC1_BASE,
.end = DA850_TPCC1_BASE + SZ_32K - 1,
.flags = IORESOURCE_MEM,
},
{
- .name = "edma_tc2",
+ .name = "edma3_tc0",
.start = DA850_TPTC2_BASE,
.end = DA850_TPTC2_BASE + SZ_1K - 1,
.flags = IORESOURCE_MEM,
},
{
- .name = "edma0",
- .start = IRQ_DA8XX_CCINT0,
- .flags = IORESOURCE_IRQ,
- },
- {
- .name = "edma0_err",
- .start = IRQ_DA8XX_CCERRINT,
- .flags = IORESOURCE_IRQ,
- },
- {
- .name = "edma1",
+ .name = "edma3_ccint",
.start = IRQ_DA850_CCINT1,
.flags = IORESOURCE_IRQ,
},
{
- .name = "edma1_err",
+ .name = "edma3_ccerrint",
.start = IRQ_DA850_CCERRINT1,
.flags = IORESOURCE_IRQ,
},
};

-static struct platform_device da830_edma_device = {
+static struct platform_device da8xx_edma0_device = {
.name = "edma",
- .id = -1,
+ .id = 0,
.dev = {
- .platform_data = da830_edma_info,
+ .platform_data = &da8xx_edma0_pdata,
},
- .num_resources = ARRAY_SIZE(da830_edma_resources),
- .resource = da830_edma_resources,
+ .num_resources = ARRAY_SIZE(da8xx_edma0_resources),
+ .resource = da8xx_edma0_resources,
};

-static struct platform_device da850_edma_device = {
+static struct platform_device da850_edma1_device = {
.name = "edma",
- .id = -1,
+ .id = 1,
.dev = {
- .platform_data = da850_edma_info,
+ .platform_data = &da850_edma1_pdata,
},
- .num_resources = ARRAY_SIZE(da850_edma_resources),
- .resource = da850_edma_resources,
+ .num_resources = ARRAY_SIZE(da850_edma1_resources),
+ .resource = da850_edma1_resources,
};

int __init da830_register_edma(struct edma_rsv_info *rsv)
{
- da830_edma_cc0_info.rsv = rsv;
+ da8xx_edma0_pdata.rsv = rsv;

- return platform_device_register(&da830_edma_device);
+ return platform_device_register(&da8xx_edma0_device);
}

int __init da850_register_edma(struct edma_rsv_info *rsv[2])
{
+ int ret;
+
if (rsv) {
- da850_edma_cc_info[0].rsv = rsv[0];
- da850_edma_cc_info[1].rsv = rsv[1];
+ da8xx_edma0_pdata.rsv = rsv[0];
+ da850_edma1_pdata.rsv = rsv[1];
}

- return platform_device_register(&da850_edma_device);
+ ret = platform_device_register(&da8xx_edma0_device);
+ if (ret) {
+ pr_warn("%s: Failed to register eDMA0\n", __func__);
+ return ret;
+ }
+ return platform_device_register(&da850_edma1_device);
}

static struct resource da8xx_i2c_resources0[] = {
diff --git a/arch/arm/mach-davinci/dm355.c b/arch/arm/mach-davinci/dm355.c
index 567dc56fe8cd..a50bb9c66952 100644
--- a/arch/arm/mach-davinci/dm355.c
+++ b/arch/arm/mach-davinci/dm355.c
@@ -569,49 +569,44 @@ static u8 dm355_default_priorities[DAVINCI_N_AINTC_IRQ] = {

/*----------------------------------------------------------------------*/

-static s8
-queue_priority_mapping[][2] = {
+static s8 queue_priority_mapping[][2] = {
/* {event queue no, Priority} */
{0, 3},
{1, 7},
{-1, -1},
};

-static struct edma_soc_info edma_cc0_info = {
+static struct edma_soc_info dm355_edma_pdata = {
.queue_priority_mapping = queue_priority_mapping,
.default_queue = EVENTQ_1,
};

-static struct edma_soc_info *dm355_edma_info[EDMA_MAX_CC] = {
- &edma_cc0_info,
-};
-
static struct resource edma_resources[] = {
{
- .name = "edma_cc0",
+ .name = "edma3_cc",
.start = 0x01c00000,
.end = 0x01c00000 + SZ_64K - 1,
.flags = IORESOURCE_MEM,
},
{
- .name = "edma_tc0",
+ .name = "edma3_tc0",
.start = 0x01c10000,
.end = 0x01c10000 + SZ_1K - 1,
.flags = IORESOURCE_MEM,
},
{
- .name = "edma_tc1",
+ .name = "edma3_tc1",
.start = 0x01c10400,
.end = 0x01c10400 + SZ_1K - 1,
.flags = IORESOURCE_MEM,
},
{
- .name = "edma0",
+ .name = "edma3_ccint",
.start = IRQ_CCINT0,
.flags = IORESOURCE_IRQ,
},
{
- .name = "edma0_err",
+ .name = "edma3_ccerrint",
.start = IRQ_CCERRINT,
.flags = IORESOURCE_IRQ,
},
@@ -621,7 +616,7 @@ static struct resource edma_resources[] = {
static struct platform_device dm355_edma_device = {
.name = "edma",
.id = 0,
- .dev.platform_data = dm355_edma_info,
+ .dev.platform_data = &dm355_edma_pdata,
.num_resources = ARRAY_SIZE(edma_resources),
.resource = edma_resources,
};
diff --git a/arch/arm/mach-davinci/dm365.c b/arch/arm/mach-davinci/dm365.c
index 6a890a8486d0..2068cbeaeb03 100644
--- a/arch/arm/mach-davinci/dm365.c
+++ b/arch/arm/mach-davinci/dm365.c
@@ -853,8 +853,7 @@ static u8 dm365_default_priorities[DAVINCI_N_AINTC_IRQ] = {
};

/* Four Transfer Controllers on DM365 */
-static s8
-dm365_queue_priority_mapping[][2] = {
+static s8 dm365_queue_priority_mapping[][2] = {
/* {event queue no, Priority} */
{0, 7},
{1, 7},
@@ -863,53 +862,49 @@ dm365_queue_priority_mapping[][2] = {
{-1, -1},
};

-static struct edma_soc_info edma_cc0_info = {
+static struct edma_soc_info dm365_edma_pdata = {
.queue_priority_mapping = dm365_queue_priority_mapping,
.default_queue = EVENTQ_3,
};

-static struct edma_soc_info *dm365_edma_info[EDMA_MAX_CC] = {
- &edma_cc0_info,
-};
-
static struct resource edma_resources[] = {
{
- .name = "edma_cc0",
+ .name = "edma3_cc",
.start = 0x01c00000,
.end = 0x01c00000 + SZ_64K - 1,
.flags = IORESOURCE_MEM,
},
{
- .name = "edma_tc0",
+ .name = "edma3_tc0",
.start = 0x01c10000,
.end = 0x01c10000 + SZ_1K - 1,
.flags = IORESOURCE_MEM,
},
{
- .name = "edma_tc1",
+ .name = "edma3_tc1",
.start = 0x01c10400,
.end = 0x01c10400 + SZ_1K - 1,
.flags = IORESOURCE_MEM,
},
{
- .name = "edma_tc2",
+ .name = "edma3_tc2",
.start = 0x01c10800,
.end = 0x01c10800 + SZ_1K - 1,
.flags = IORESOURCE_MEM,
},
{
- .name = "edma_tc3",
+ .name = "edma3_tc3",
.start = 0x01c10c00,
.end = 0x01c10c00 + SZ_1K - 1,
.flags = IORESOURCE_MEM,
},
{
- .name = "edma0",
+ .name = "edma3_ccint",
.start = IRQ_CCINT0,
.flags = IORESOURCE_IRQ,
},
{
- .name = "edma0_err",
+ .name = "edma3_ccerrint",
.start = IRQ_CCERRINT,
.flags = IORESOURCE_IRQ,
},
@@ -919,7 +914,7 @@ static struct resource edma_resources[] = {
static struct platform_device dm365_edma_device = {
.name = "edma",
.id = 0,
- .dev.platform_data = dm365_edma_info,
+ .dev.platform_data = &dm365_edma_pdata,
.num_resources = ARRAY_SIZE(edma_resources),
.resource = edma_resources,
};
diff --git a/arch/arm/mach-davinci/dm644x.c b/arch/arm/mach-davinci/dm644x.c
index dc52657909c4..d759ca8e58e8 100644
--- a/arch/arm/mach-davinci/dm644x.c
+++ b/arch/arm/mach-davinci/dm644x.c
@@ -498,49 +498,44 @@ static u8 dm644x_default_priorities[DAVINCI_N_AINTC_IRQ] = {

/*----------------------------------------------------------------------*/

-static s8
-queue_priority_mapping[][2] = {
+static s8 queue_priority_mapping[][2] = {
/* {event queue no, Priority} */
{0, 3},
{1, 7},
{-1, -1},
};

-static struct edma_soc_info edma_cc0_info = {
+static struct edma_soc_info dm644x_edma_pdata = {
.queue_priority_mapping = queue_priority_mapping,
.default_queue = EVENTQ_1,
};

-static struct edma_soc_info *dm644x_edma_info[EDMA_MAX_CC] = {
- &edma_cc0_info,
-};
-
static struct resource edma_resources[] = {
{
- .name = "edma_cc0",
+ .name = "edma3_cc",
.start = 0x01c00000,
.end = 0x01c00000 + SZ_64K - 1,
.flags = IORESOURCE_MEM,
},
{
- .name = "edma_tc0",
+ .name = "edma3_tc0",
.start = 0x01c10000,
.end = 0x01c10000 + SZ_1K - 1,
.flags = IORESOURCE_MEM,
},
{
- .name = "edma_tc1",
+ .name = "edma3_tc1",
.start = 0x01c10400,
.end = 0x01c10400 + SZ_1K - 1,
.flags = IORESOURCE_MEM,
},
{
- .name = "edma0",
+ .name = "edma3_ccint",
.start = IRQ_CCINT0,
.flags = IORESOURCE_IRQ,
},
{
- .name = "edma0_err",
+ .name = "edma3_ccerrint",
.start = IRQ_CCERRINT,
.flags = IORESOURCE_IRQ,
},
@@ -550,7 +545,7 @@ static struct resource edma_resources[] = {
static struct platform_device dm644x_edma_device = {
.name = "edma",
.id = 0,
- .dev.platform_data = dm644x_edma_info,
+ .dev.platform_data = &dm644x_edma_pdata,
.num_resources = ARRAY_SIZE(edma_resources),
.resource = edma_resources,
};
diff --git a/arch/arm/mach-davinci/dm646x.c b/arch/arm/mach-davinci/dm646x.c
index 3f842bb266d6..219ebc8f674a 100644
--- a/arch/arm/mach-davinci/dm646x.c
+++ b/arch/arm/mach-davinci/dm646x.c
@@ -531,8 +531,7 @@ static u8 dm646x_default_priorities[DAVINCI_N_AINTC_IRQ] = {
/*----------------------------------------------------------------------*/

/* Four Transfer Controllers on DM646x */
-static s8
-dm646x_queue_priority_mapping[][2] = {
+static s8 dm646x_queue_priority_mapping[][2] = {
/* {event queue no, Priority} */
{0, 4},
{1, 0},
@@ -541,53 +540,49 @@ dm646x_queue_priority_mapping[][2] = {
{-1, -1},
};

-static struct edma_soc_info edma_cc0_info = {
+static struct edma_soc_info dm646x_edma_pdata = {
.queue_priority_mapping = dm646x_queue_priority_mapping,
.default_queue = EVENTQ_1,
};

-static struct edma_soc_info *dm646x_edma_info[EDMA_MAX_CC] = {
- &edma_cc0_info,
-};
-
static struct resource edma_resources[] = {
{
- .name = "edma_cc0",
+ .name = "edma3_cc",
.start = 0x01c00000,
.end = 0x01c00000 + SZ_64K - 1,
.flags = IORESOURCE_MEM,
},
{
- .name = "edma_tc0",
+ .name = "edma3_tc0",
.start = 0x01c10000,
.end = 0x01c10000 + SZ_1K - 1,
.flags = IORESOURCE_MEM,
},
{
- .name = "edma_tc1",
+ .name = "edma3_tc1",
.start = 0x01c10400,
.end = 0x01c10400 + SZ_1K - 1,
.flags = IORESOURCE_MEM,
},
{
- .name = "edma_tc2",
+ .name = "edma3_tc2",
.start = 0x01c10800,
.end = 0x01c10800 + SZ_1K - 1,
.flags = IORESOURCE_MEM,
},
{
- .name = "edma_tc3",
+ .name = "edma3_tc3",
.start = 0x01c10c00,
.end = 0x01c10c00 + SZ_1K - 1,
.flags = IORESOURCE_MEM,
},
{
- .name = "edma0",
+ .name = "edma3_ccint",
.start = IRQ_CCINT0,
.flags = IORESOURCE_IRQ,
},
{
- .name = "edma0_err",
+ .name = "edma3_ccerrint",
.start = IRQ_CCERRINT,
.flags = IORESOURCE_IRQ,
},
@@ -597,7 +592,7 @@ static struct resource edma_resources[] = {
static struct platform_device dm646x_edma_device = {
.name = "edma",
.id = 0,
- .dev.platform_data = dm646x_edma_info,
+ .dev.platform_data = &dm646x_edma_pdata,
.num_resources = ARRAY_SIZE(edma_resources),
.resource = edma_resources,
};
@@ -936,7 +931,7 @@ void dm646x_setup_vpif(struct vpif_display_config *display_config,

int __init dm646x_init_edma(struct edma_rsv_info *rsv)
{
- edma_cc0_info.rsv = rsv;
+ dm646x_edma_pdata.rsv = rsv;

return platform_device_register(&dm646x_edma_device);
}
--
2.5.1

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