dma: ipu: remove the use of ipu_platform_data
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 <shawn.guo@linaro.org>
Acked-by: Vinod Koul <vinod.koul@intel.com>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Acked-by: Dong Aisheng <dong.aisheng@linaro.org>
diff --git a/drivers/dma/ipu/ipu_irq.c b/drivers/dma/ipu/ipu_irq.c
index a71f55e..fa95bcc 100644
--- a/drivers/dma/ipu/ipu_irq.c
+++ b/drivers/dma/ipu/ipu_irq.c
@@ -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 @@
/* 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 @@
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);