The resource data is getting automatically populated from a set of data
generated from TI's hardware database for the OMAP platform,
While we could hack in some exceptions to that tool to generate resources
in a specific order, it seems less fragile to use the resource name
instead.That way, no matter what order the resources are generated, the
driver still work.
Modified the OMAP,Blackfin and Davinci architecture files to add the name of the IRQs
in the resource structures and musb driver to use the get_irq_byname() api to
get the device and dma irq numbers instead of using the index.
Signed-off-by: Hema HK <hemahk@xxxxxx>
Cc: Felipe Balbi <balbi@xxxxxx>
Cc: Tony Lindgren <tony@xxxxxxxxxxx>
Cc: Kevin Hilman <khilman@xxxxxxxxxxxxxxxxxxx>
Cc: Cousson, Benoit <b-cousson@xxxxxx>
Cc: Paul Walmsley <paul@xxxxxxxxx>
Cc: Mike Frysinger <vapier@xxxxxxxxxx>
---
[Updated the changelog with background]
arch/arm/mach-davinci/usb.c | 2 ++
arch/arm/mach-omap2/usb-musb.c | 2 ++
arch/blackfin/mach-bf527/boards/cm_bf527.c | 2 ++
arch/blackfin/mach-bf527/boards/ezbrd.c | 2 ++
arch/blackfin/mach-bf527/boards/ezkit.c | 2 ++
arch/blackfin/mach-bf548/boards/cm_bf548.c | 2 ++
arch/blackfin/mach-bf548/boards/ezkit.c | 2 ++
drivers/usb/musb/cppi_dma.c | 2 +-
drivers/usb/musb/musb_core.c | 2 +-
drivers/usb/musb/musbhsdma.c | 2 +-
10 files changed, 17 insertions(+), 3 deletions(-)
Index: linux-omap-pm/arch/arm/mach-davinci/usb.c
===================================================================
--- linux-omap-pm.orig/arch/arm/mach-davinci/usb.c
+++ linux-omap-pm/arch/arm/mach-davinci/usb.c
@@ -64,10 +64,12 @@ static struct resource usb_resources[] =
{
.start = IRQ_USBINT,
.flags = IORESOURCE_IRQ,
+ .name = "mc"
},
{
/* placeholder for the dedicated CPPI IRQ */
.flags = IORESOURCE_IRQ,
+ .name = "dma"
},
};
Index: linux-omap-pm/arch/arm/mach-omap2/usb-musb.c
===================================================================
--- linux-omap-pm.orig/arch/arm/mach-omap2/usb-musb.c
+++ linux-omap-pm/arch/arm/mach-omap2/usb-musb.c
@@ -39,10 +39,12 @@ static struct resource musb_resources[]
[1] = { /* general IRQ */
.start = INT_243X_HS_USB_MC,
.flags = IORESOURCE_IRQ,
+ .name = "mc",
},
[2] = { /* DMA IRQ */
.start = INT_243X_HS_USB_DMA,
.flags = IORESOURCE_IRQ,
+ .name = "dma",
},
};
Index: linux-omap-pm/arch/blackfin/mach-bf527/boards/cm_bf527.c
===================================================================
--- linux-omap-pm.orig/arch/blackfin/mach-bf527/boards/cm_bf527.c
+++ linux-omap-pm/arch/blackfin/mach-bf527/boards/cm_bf527.c
@@ -82,11 +82,13 @@ static struct resource musb_resources[]
.start = IRQ_USB_INT0,
.end = IRQ_USB_INT0,
.flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHLEVEL,
+ .name = "mc"
},
[2] = { /* DMA IRQ */
.start = IRQ_USB_DMA,
.end = IRQ_USB_DMA,
.flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHLEVEL,
+ .name = "dma"
},
};
Index: linux-omap-pm/arch/blackfin/mach-bf527/boards/ezbrd.c
===================================================================
--- linux-omap-pm.orig/arch/blackfin/mach-bf527/boards/ezbrd.c
+++ linux-omap-pm/arch/blackfin/mach-bf527/boards/ezbrd.c
@@ -46,11 +46,13 @@ static struct resource musb_resources[]
.start = IRQ_USB_INT0,
.end = IRQ_USB_INT0,
.flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHLEVEL,
+ .name = "mc"
},
[2] = { /* DMA IRQ */
.start = IRQ_USB_DMA,
.end = IRQ_USB_DMA,
.flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHLEVEL,
+ .name = "dma"
},
};
Index: linux-omap-pm/arch/blackfin/mach-bf527/boards/ezkit.c
===================================================================
--- linux-omap-pm.orig/arch/blackfin/mach-bf527/boards/ezkit.c
+++ linux-omap-pm/arch/blackfin/mach-bf527/boards/ezkit.c
@@ -86,11 +86,13 @@ static struct resource musb_resources[]
.start = IRQ_USB_INT0,
.end = IRQ_USB_INT0,
.flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHLEVEL,
+ .name = "mc"
},
[2] = { /* DMA IRQ */
.start = IRQ_USB_DMA,
.end = IRQ_USB_DMA,
.flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHLEVEL,
+ .name = "dma"
},
};
Index: linux-omap-pm/arch/blackfin/mach-bf548/boards/cm_bf548.c
===================================================================
--- linux-omap-pm.orig/arch/blackfin/mach-bf548/boards/cm_bf548.c
+++ linux-omap-pm/arch/blackfin/mach-bf548/boards/cm_bf548.c
@@ -482,11 +482,13 @@ static struct resource musb_resources[]
.start = IRQ_USB_INT0,
.end = IRQ_USB_INT0,
.flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHLEVEL,
+ .name = "mc"
},
[2] = { /* DMA IRQ */
.start = IRQ_USB_DMA,
.end = IRQ_USB_DMA,
.flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHLEVEL,
+ .name = "dma"
},
};
Index: linux-omap-pm/arch/blackfin/mach-bf548/boards/ezkit.c
===================================================================
--- linux-omap-pm.orig/arch/blackfin/mach-bf548/boards/ezkit.c
+++ linux-omap-pm/arch/blackfin/mach-bf548/boards/ezkit.c
@@ -587,11 +587,13 @@ static struct resource musb_resources[]
.start = IRQ_USB_INT0,
.end = IRQ_USB_INT0,
.flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHLEVEL,
+ .name = "mc"
},
[2] = { /* DMA IRQ */
.start = IRQ_USB_DMA,
.end = IRQ_USB_DMA,
.flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHLEVEL,
+ .name = "dma"
},
};
Index: linux-omap-pm/drivers/usb/musb/cppi_dma.c
===================================================================
--- linux-omap-pm.orig/drivers/usb/musb/cppi_dma.c
+++ linux-omap-pm/drivers/usb/musb/cppi_dma.c
@@ -1307,7 +1307,7 @@ dma_controller_create(struct musb *musb,
struct cppi *controller;
struct device *dev = musb->controller;
struct platform_device *pdev = to_platform_device(dev);
- int irq = platform_get_irq(pdev, 1);
+ int irq = platform_get_irq_byname(pdev, "dma");
controller = kzalloc(sizeof *controller, GFP_KERNEL);
if (!controller)
Index: linux-omap-pm/drivers/usb/musb/musb_core.c
===================================================================
--- linux-omap-pm.orig/drivers/usb/musb/musb_core.c
+++ linux-omap-pm/drivers/usb/musb/musb_core.c
@@ -2203,7 +2203,7 @@ static u64 *orig_dma_mask;
static int __init musb_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
- int irq = platform_get_irq(pdev, 0);
+ int irq = platform_get_irq_byname(pdev, "mc");
int status;
struct resource *iomem;
void __iomem *base;
Index: linux-omap-pm/drivers/usb/musb/musbhsdma.c
===================================================================
--- linux-omap-pm.orig/drivers/usb/musb/musbhsdma.c
+++ linux-omap-pm/drivers/usb/musb/musbhsdma.c
@@ -363,7 +363,7 @@ dma_controller_create(struct musb *musb,
struct musb_dma_controller *controller;
struct device *dev = musb->controller;
struct platform_device *pdev = to_platform_device(dev);
- int irq = platform_get_irq(pdev, 1);
+ int irq = platform_get_irq_byname(pdev, "dma");
if (irq == 0) {
dev_err(dev, "No DMA interrupt line!\n");
--
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