summaryrefslogtreecommitdiffstats
path: root/arch/arm/mach-mmp/devices.c
diff options
context:
space:
mode:
Diffstat (limited to 'arch/arm/mach-mmp/devices.c')
-rw-r--r--arch/arm/mach-mmp/devices.c69
1 files changed, 69 insertions, 0 deletions
diff --git a/arch/arm/mach-mmp/devices.c b/arch/arm/mach-mmp/devices.c
new file mode 100644
index 0000000..191d9de
--- /dev/null
+++ b/arch/arm/mach-mmp/devices.c
@@ -0,0 +1,69 @@
+/*
+ * linux/arch/arm/mach-mmp/devices.c
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/dma-mapping.h>
+
+#include <asm/irq.h>
+#include <mach/devices.h>
+
+int __init pxa_register_device(struct pxa_device_desc *desc,
+ void *data, size_t size)
+{
+ struct platform_device *pdev;
+ struct resource res[2 + MAX_RESOURCE_DMA];
+ int i, ret = 0, nres = 0;
+
+ pdev = platform_device_alloc(desc->drv_name, desc->id);
+ if (pdev == NULL)
+ return -ENOMEM;
+
+ pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
+
+ memset(res, 0, sizeof(res));
+
+ if (desc->start != -1ul && desc->size > 0) {
+ res[nres].start = desc->start;
+ res[nres].end = desc->start + desc->size - 1;
+ res[nres].flags = IORESOURCE_MEM;
+ nres++;
+ }
+
+ if (desc->irq != NO_IRQ) {
+ res[nres].start = desc->irq;
+ res[nres].end = desc->irq;
+ res[nres].flags = IORESOURCE_IRQ;
+ nres++;
+ }
+
+ for (i = 0; i < MAX_RESOURCE_DMA; i++, nres++) {
+ if (desc->dma[i] == 0)
+ break;
+
+ res[nres].start = desc->dma[i];
+ res[nres].end = desc->dma[i];
+ res[nres].flags = IORESOURCE_DMA;
+ }
+
+ ret = platform_device_add_resources(pdev, res, nres);
+ if (ret) {
+ platform_device_put(pdev);
+ return ret;
+ }
+
+ if (data && size) {
+ ret = platform_device_add_data(pdev, data, size);
+ if (ret) {
+ platform_device_put(pdev);
+ return ret;
+ }
+ }
+
+ return platform_device_add(pdev);
+}
OpenPOWER on IntegriCloud