aa613de676
This patch provides a common subdevice registration system for MFD type chips, using platfrom device. Signed-off-by: Ian Molton <spyro@f2s.com> Signed-off-by: Dmitry Baryshkov <dbaryshkov@gmail.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
56 lines
1.4 KiB
C
56 lines
1.4 KiB
C
#ifndef MFD_CORE_H
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#define MFD_CORE_H
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/*
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* drivers/mfd/mfd-core.h
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*
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* core MFD support
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* Copyright (c) 2006 Ian Molton
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* Copyright (c) 2007 Dmitry Baryshkov
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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*/
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#include <linux/platform_device.h>
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/*
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* This struct describes the MFD part ("cell").
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* After registration the copy of this structure will become the platform data
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* of the resulting platform_device
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*/
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struct mfd_cell {
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const char *name;
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int (*enable)(struct platform_device *dev);
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int (*disable)(struct platform_device *dev);
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int (*suspend)(struct platform_device *dev);
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int (*resume)(struct platform_device *dev);
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void *driver_data; /* driver-specific data */
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/*
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* This resources can be specified relatievly to the parent device.
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* For accessing device you should use resources from device
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*/
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int num_resources;
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const struct resource *resources;
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};
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static inline struct mfd_cell *
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mfd_get_cell(struct platform_device *pdev)
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{
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return (struct mfd_cell *)pdev->dev.platform_data;
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}
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extern int mfd_add_devices(
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struct platform_device *parent,
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const struct mfd_cell *cells, int n_devs,
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struct resource *mem_base,
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int irq_base);
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extern void mfd_remove_devices(struct platform_device *parent);
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#endif
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