1 files changed, 181 insertions, 0 deletions

diff --git a/drivers/mfd/tc6387xb.c b/drivers/mfd/tc6387xb.c
new file mode 100644
index 000000000000..a22b21ac6cf8
--- /dev/null
+++ b/drivers/mfd/tc6387xb.c
@@ -0,0 +1,181 @@
+/*
+ * Toshiba TC6387XB support
+ * Copyright (c) 2005 Ian Molton
+ *
+ * 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.
+ *
+ * This file contains TC6387XB base support.
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/err.h>
+#include <linux/mfd/core.h>
+#include <linux/mfd/tmio.h>
+#include <linux/mfd/tc6387xb.h>
+
+enum {
+        TC6387XB_CELL_MMC,
+};
+
+#ifdef CONFIG_PM
+static int tc6387xb_suspend(struct platform_device *dev, pm_message_t state)
+{
+        struct tc6387xb_platform_data *pdata = platform_get_drvdata(dev);
+
+        if (pdata && pdata->suspend)
+                pdata->suspend(dev);
+
+        return 0;
+}
+
+static int tc6387xb_resume(struct platform_device *dev)
+{
+        struct tc6387xb_platform_data *pdata = platform_get_drvdata(dev);
+
+        if (pdata && pdata->resume)
+                pdata->resume(dev);
+
+        return 0;
+}
+#else
+#define tc6387xb_suspend  NULL
+#define tc6387xb_resume   NULL
+#endif
+
+/*--------------------------------------------------------------------------*/
+
+static int tc6387xb_mmc_enable(struct platform_device *mmc)
+{
+        struct platform_device *dev      = to_platform_device(mmc->dev.parent);
+        struct tc6387xb_platform_data *tc6387xb = dev->dev.platform_data;
+
+        if (tc6387xb->enable_clk32k)
+                tc6387xb->enable_clk32k(dev);
+
+        return 0;
+}
+
+static int tc6387xb_mmc_disable(struct platform_device *mmc)
+{
+        struct platform_device *dev      = to_platform_device(mmc->dev.parent);
+        struct tc6387xb_platform_data *tc6387xb = dev->dev.platform_data;
+
+        if (tc6387xb->disable_clk32k)
+                tc6387xb->disable_clk32k(dev);
+
+        return 0;
+}
+
+/*--------------------------------------------------------------------------*/
+
+static struct resource tc6387xb_mmc_resources[] = {
+        {
+                .start = 0x800,
+                .end   = 0x9ff,
+                .flags = IORESOURCE_MEM,
+        },
+        {
+                .start = 0x200,
+                .end   = 0x2ff,
+                .flags = IORESOURCE_MEM,
+        },
+        {
+                .start = 0,
+                .end   = 0,
+                .flags = IORESOURCE_IRQ,
+        },
+};
+
+static struct mfd_cell tc6387xb_cells[] = {
+        [TC6387XB_CELL_MMC] = {
+                .name = "tmio-mmc",
+                .enable = tc6387xb_mmc_enable,
+                .disable = tc6387xb_mmc_disable,
+                .num_resources = ARRAY_SIZE(tc6387xb_mmc_resources),
+                .resources = tc6387xb_mmc_resources,
+        },
+};
+
+static int tc6387xb_probe(struct platform_device *dev)
+{
+        struct tc6387xb_platform_data *data = platform_get_drvdata(dev);
+        struct resource *iomem;
+        int irq, ret;
+
+        iomem = platform_get_resource(dev, IORESOURCE_MEM, 0);
+        if (!iomem) {
+                ret = -EINVAL;
+                goto err_resource;
+        }
+
+        ret  = platform_get_irq(dev, 0);
+        if (ret >= 0)
+                irq = ret;
+        else
+                goto err_resource;
+
+        if (data && data->enable)
+                data->enable(dev);
+
+        printk(KERN_INFO "Toshiba tc6387xb initialised\n");
+
+        tc6387xb_cells[TC6387XB_CELL_MMC].platform_data =
+                &tc6387xb_cells[TC6387XB_CELL_MMC];
+        tc6387xb_cells[TC6387XB_CELL_MMC].data_size =
+                sizeof(tc6387xb_cells[TC6387XB_CELL_MMC]);
+
+        ret = mfd_add_devices(&dev->dev, dev->id, tc6387xb_cells,
+                              ARRAY_SIZE(tc6387xb_cells), iomem, irq);
+
+        if (!ret)
+                return 0;
+
+err_resource:
+        return ret;
+}
+
+static int tc6387xb_remove(struct platform_device *dev)
+{
+        struct tc6387xb_platform_data *data = platform_get_drvdata(dev);
+
+        if (data && data->disable)
+                data->disable(dev);
+
+        /* FIXME - free the resources! */
+
+        return 0;
+}
+
+
+static struct platform_driver tc6387xb_platform_driver = {
+        .driver = {
+                .name           = "tc6387xb",
+        },
+        .probe          = tc6387xb_probe,
+        .remove         = tc6387xb_remove,
+        .suspend        = tc6387xb_suspend,
+        .resume         = tc6387xb_resume,
+};
+
+
+static int __init tc6387xb_init(void)
+{
+        return platform_driver_register(&tc6387xb_platform_driver);
+}
+
+static void __exit tc6387xb_exit(void)
+{
+        platform_driver_unregister(&tc6387xb_platform_driver);
+}
+
+module_init(tc6387xb_init);
+module_exit(tc6387xb_exit);
+
+MODULE_DESCRIPTION("Toshiba TC6387XB core driver");
+MODULE_LICENSE("GPL v2");
+MODULE_AUTHOR("Ian Molton");
+MODULE_ALIAS("platform:tc6387xb");