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authorGabor Juhos <juhosg@openwrt.org>2013-02-09 17:57:52 +0000
committerJohn Crispin <blogic@openwrt.org>2013-02-17 01:25:42 +0100
commit90a938d1add4859ad3e43c3dd5ee54bd0627e42d (patch)
tree9b34a0c5b275bf60093531996ee0a95179650da0 /arch/mips/ath79
parentfd633cf1cfe978003888dc78ff94f926fbe7dd8a (diff)
downloadlinux-90a938d1add4859ad3e43c3dd5ee54bd0627e42d.tar.gz
MIPS: ath79: use dynamically allocated USB platform devices
The current code uses static resources and static platform device instances for the possible USB controllers in the system. These static variables contains initial values which leads to data segment pollution. Remove the static variables and use dynamically allocated structures instead. Signed-off-by: Gabor Juhos <juhosg@openwrt.org> Patchwork: http://patchwork.linux-mips.org/patch/4933/ Signed-off-by: John Crispin <blogic@openwrt.org>
Diffstat (limited to 'arch/mips/ath79')
-rw-r--r--arch/mips/ath79/dev-usb.c111
1 files changed, 51 insertions, 60 deletions
diff --git a/arch/mips/ath79/dev-usb.c b/arch/mips/ath79/dev-usb.c
index bcb165b17ca..02124d02cf6 100644
--- a/arch/mips/ath79/dev-usb.c
+++ b/arch/mips/ath79/dev-usb.c
@@ -25,29 +25,11 @@
#include "common.h"
#include "dev-usb.h"
-static struct resource ath79_ohci_resources[2];
-
-static u64 ath79_ohci_dmamask = DMA_BIT_MASK(32);
+static u64 ath79_usb_dmamask = DMA_BIT_MASK(32);
static struct usb_ohci_pdata ath79_ohci_pdata = {
};
-static struct platform_device ath79_ohci_device = {
- .name = "ohci-platform",
- .id = -1,
- .resource = ath79_ohci_resources,
- .num_resources = ARRAY_SIZE(ath79_ohci_resources),
- .dev = {
- .dma_mask = &ath79_ohci_dmamask,
- .coherent_dma_mask = DMA_BIT_MASK(32),
- .platform_data = &ath79_ohci_pdata,
- },
-};
-
-static struct resource ath79_ehci_resources[2];
-
-static u64 ath79_ehci_dmamask = DMA_BIT_MASK(32);
-
static struct usb_ehci_pdata ath79_ehci_pdata_v1 = {
.has_synopsys_hc_bug = 1,
};
@@ -57,22 +39,16 @@ static struct usb_ehci_pdata ath79_ehci_pdata_v2 = {
.has_tt = 1,
};
-static struct platform_device ath79_ehci_device = {
- .name = "ehci-platform",
- .id = -1,
- .resource = ath79_ehci_resources,
- .num_resources = ARRAY_SIZE(ath79_ehci_resources),
- .dev = {
- .dma_mask = &ath79_ehci_dmamask,
- .coherent_dma_mask = DMA_BIT_MASK(32),
- },
-};
-
-static void __init ath79_usb_init_resource(struct resource res[2],
- unsigned long base,
- unsigned long size,
- int irq)
+static void __init ath79_usb_register(const char *name, int id,
+ unsigned long base, unsigned long size,
+ int irq, const void *data,
+ size_t data_size)
{
+ struct resource res[2];
+ struct platform_device *pdev;
+
+ memset(res, 0, sizeof(res));
+
res[0].flags = IORESOURCE_MEM;
res[0].start = base;
res[0].end = base + size - 1;
@@ -80,6 +56,19 @@ static void __init ath79_usb_init_resource(struct resource res[2],
res[1].flags = IORESOURCE_IRQ;
res[1].start = irq;
res[1].end = irq;
+
+ pdev = platform_device_register_resndata(NULL, name, id,
+ res, ARRAY_SIZE(res),
+ data, data_size);
+
+ if (IS_ERR(pdev)) {
+ pr_err("ath79: unable to register USB at %08lx, err=%d\n",
+ base, (int) PTR_ERR(pdev));
+ return;
+ }
+
+ pdev->dev.dma_mask = &ath79_usb_dmamask;
+ pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
}
#define AR71XX_USB_RESET_MASK (AR71XX_RESET_USB_HOST | \
@@ -106,14 +95,15 @@ static void __init ath79_usb_setup(void)
mdelay(900);
- ath79_usb_init_resource(ath79_ohci_resources, AR71XX_OHCI_BASE,
- AR71XX_OHCI_SIZE, ATH79_MISC_IRQ(6));
- platform_device_register(&ath79_ohci_device);
+ ath79_usb_register("ohci-platform", -1,
+ AR71XX_OHCI_BASE, AR71XX_OHCI_SIZE,
+ ATH79_MISC_IRQ(6),
+ &ath79_ohci_pdata, sizeof(ath79_ohci_pdata));
- ath79_usb_init_resource(ath79_ehci_resources, AR71XX_EHCI_BASE,
- AR71XX_EHCI_SIZE, ATH79_CPU_IRQ(3));
- ath79_ehci_device.dev.platform_data = &ath79_ehci_pdata_v1;
- platform_device_register(&ath79_ehci_device);
+ ath79_usb_register("ehci-platform", -1,
+ AR71XX_EHCI_BASE, AR71XX_EHCI_SIZE,
+ ATH79_CPU_IRQ(3),
+ &ath79_ehci_pdata_v1, sizeof(ath79_ehci_pdata_v1));
}
static void __init ar7240_usb_setup(void)
@@ -135,9 +125,10 @@ static void __init ar7240_usb_setup(void)
iounmap(usb_ctrl_base);
- ath79_usb_init_resource(ath79_ohci_resources, AR7240_OHCI_BASE,
- AR7240_OHCI_SIZE, ATH79_CPU_IRQ(3));
- platform_device_register(&ath79_ohci_device);
+ ath79_usb_register("ohci-platform", -1,
+ AR7240_OHCI_BASE, AR7240_OHCI_SIZE,
+ ATH79_CPU_IRQ(3),
+ &ath79_ohci_pdata, sizeof(ath79_ohci_pdata));
}
static void __init ar724x_usb_setup(void)
@@ -151,10 +142,10 @@ static void __init ar724x_usb_setup(void)
ath79_device_reset_clear(AR724X_RESET_USB_PHY);
mdelay(10);
- ath79_usb_init_resource(ath79_ehci_resources, AR724X_EHCI_BASE,
- AR724X_EHCI_SIZE, ATH79_CPU_IRQ(3));
- ath79_ehci_device.dev.platform_data = &ath79_ehci_pdata_v2;
- platform_device_register(&ath79_ehci_device);
+ ath79_usb_register("ehci-platform", -1,
+ AR724X_EHCI_BASE, AR724X_EHCI_SIZE,
+ ATH79_CPU_IRQ(3),
+ &ath79_ehci_pdata_v2, sizeof(ath79_ehci_pdata_v2));
}
static void __init ar913x_usb_setup(void)
@@ -168,10 +159,10 @@ static void __init ar913x_usb_setup(void)
ath79_device_reset_clear(AR913X_RESET_USB_PHY);
mdelay(10);
- ath79_usb_init_resource(ath79_ehci_resources, AR913X_EHCI_BASE,
- AR913X_EHCI_SIZE, ATH79_CPU_IRQ(3));
- ath79_ehci_device.dev.platform_data = &ath79_ehci_pdata_v2;
- platform_device_register(&ath79_ehci_device);
+ ath79_usb_register("ehci-platform", -1,
+ AR913X_EHCI_BASE, AR913X_EHCI_SIZE,
+ ATH79_CPU_IRQ(3),
+ &ath79_ehci_pdata_v2, sizeof(ath79_ehci_pdata_v2));
}
static void __init ar933x_usb_setup(void)
@@ -185,10 +176,10 @@ static void __init ar933x_usb_setup(void)
ath79_device_reset_clear(AR933X_RESET_USB_PHY);
mdelay(10);
- ath79_usb_init_resource(ath79_ehci_resources, AR933X_EHCI_BASE,
- AR933X_EHCI_SIZE, ATH79_CPU_IRQ(3));
- ath79_ehci_device.dev.platform_data = &ath79_ehci_pdata_v2;
- platform_device_register(&ath79_ehci_device);
+ ath79_usb_register("ehci-platform", -1,
+ AR933X_EHCI_BASE, AR933X_EHCI_SIZE,
+ ATH79_CPU_IRQ(3),
+ &ath79_ehci_pdata_v2, sizeof(ath79_ehci_pdata_v2));
}
static void __init ar934x_usb_setup(void)
@@ -211,10 +202,10 @@ static void __init ar934x_usb_setup(void)
ath79_device_reset_clear(AR934X_RESET_USB_HOST);
udelay(1000);
- ath79_usb_init_resource(ath79_ehci_resources, AR934X_EHCI_BASE,
- AR934X_EHCI_SIZE, ATH79_CPU_IRQ(3));
- ath79_ehci_device.dev.platform_data = &ath79_ehci_pdata_v2;
- platform_device_register(&ath79_ehci_device);
+ ath79_usb_register("ehci-platform", -1,
+ AR934X_EHCI_BASE, AR934X_EHCI_SIZE,
+ ATH79_CPU_IRQ(3),
+ &ath79_ehci_pdata_v2, sizeof(ath79_ehci_pdata_v2));
}
void __init ath79_register_usb(void)