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dma: ipu: remove the use of ipu_platform_data

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The struct ipu_platform_data is used by platform code to pass
MXC_IPU_IRQ_START to ipu-core driver.  We can save it by having
ipu-core driver call irq_alloc_descs to get the irq_base.

Signed-off-by: Shawn Guo <[email protected]>
Acked-by: Vinod Koul <[email protected]>
Acked-by: Sascha Hauer <[email protected]>
Acked-by: Dong Aisheng <[email protected]>
This commit is contained in:
Shawn Guo 2012-06-13 14:07:31 +08:00
commit 88289c80d4
16 changed files with 28 additions and 73 deletions
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8
drivers/dma/ipu/ipu_idmac.c
View file

@ -1663,7 +1663,6 @@ static void __exit ipu_idmac_exit(struct ipu *ipu)
static int __init ipu_probe(struct platform_device *pdev)
{
struct ipu_platform_data *pdata = pdev->dev.platform_data;
struct resource *mem_ipu, *mem_ic;
int ret;
@ -1671,7 +1670,7 @@ static int __init ipu_probe(struct platform_device *pdev)
mem_ipu = platform_get_resource(pdev, IORESOURCE_MEM, 0);
mem_ic = platform_get_resource(pdev, IORESOURCE_MEM, 1);
if (!pdata || !mem_ipu || !mem_ic)
if (!mem_ipu || !mem_ic)
return -EINVAL;
ipu_data.dev = &pdev->dev;
@ -1688,10 +1687,9 @@ static int __init ipu_probe(struct platform_device *pdev)
goto err_noirq;
ipu_data.irq_err = ret;
ipu_data.irq_base = pdata->irq_base;
dev_dbg(&pdev->dev, "fn irq %u, err irq %u, irq-base %u\n",
ipu_data.irq_fn, ipu_data.irq_err, ipu_data.irq_base);
dev_dbg(&pdev->dev, "fn irq %u, err irq %u\n",
ipu_data.irq_fn, ipu_data.irq_err);
/* Remap IPU common registers */
ipu_data.reg_ipu = ioremap(mem_ipu->start, resource_size(mem_ipu));

14
drivers/dma/ipu/ipu_irq.c
View file

@ -14,6 +14,7 @@
#include <linux/clk.h>
#include <linux/irq.h>
#include <linux/io.h>
#include <linux/module.h>
#include <mach/ipu.h>
@ -354,10 +355,12 @@ static struct irq_chip ipu_irq_chip = {
/* Install the IRQ handler */
int __init ipu_irq_attach_irq(struct ipu *ipu, struct platform_device *dev)
{
struct ipu_platform_data *pdata = dev->dev.platform_data;
unsigned int irq, irq_base, i;
unsigned int irq, i;
int irq_base = irq_alloc_descs(-1, 0, CONFIG_MX3_IPU_IRQS,
numa_node_id());
irq_base = pdata->irq_base;
if (irq_base < 0)
return irq_base;
for (i = 0; i < IPU_IRQ_NR_BANKS; i++)
irq_bank[i].ipu = ipu;
@ -387,15 +390,16 @@ int __init ipu_irq_attach_irq(struct ipu *ipu, struct platform_device *dev)
irq_set_handler_data(ipu->irq_err, ipu);
irq_set_chained_handler(ipu->irq_err, ipu_irq_err);
ipu->irq_base = irq_base;
return 0;
}
void ipu_irq_detach_irq(struct ipu *ipu, struct platform_device *dev)
{
struct ipu_platform_data *pdata = dev->dev.platform_data;
unsigned int irq, irq_base;
irq_base = pdata->irq_base;
irq_base = ipu->irq_base;
irq_set_chained_handler(ipu->irq_fn, NULL);
irq_set_handler_data(ipu->irq_fn, NULL);