f2226a33bf
The VSPR and VSPS instances use two clocks, the VSP1 system clock and the VSP1 realtime clock. Both of them need to be enabled to access the VSP1 registers. Add support for an optional RT clock and enable/disable it along with the system clock. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
74 lines
1.6 KiB
C
74 lines
1.6 KiB
C
/*
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* vsp1.h -- R-Car VSP1 Driver
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*
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* Copyright (C) 2013 Renesas Corporation
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*
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* Contact: Laurent Pinchart (laurent.pinchart@ideasonboard.com)
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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 as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*/
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#ifndef __VSP1_H__
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#define __VSP1_H__
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#include <linux/io.h>
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#include <linux/list.h>
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#include <linux/mutex.h>
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#include <linux/platform_data/vsp1.h>
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#include <media/media-device.h>
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#include <media/v4l2-device.h>
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#include <media/v4l2-subdev.h>
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#include "vsp1_regs.h"
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struct clk;
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struct device;
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struct vsp1_platform_data;
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struct vsp1_lif;
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struct vsp1_rwpf;
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struct vsp1_uds;
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#define VPS1_MAX_RPF 5
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#define VPS1_MAX_UDS 3
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#define VPS1_MAX_WPF 4
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struct vsp1_device {
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struct device *dev;
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struct vsp1_platform_data *pdata;
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void __iomem *mmio;
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struct clk *clock;
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struct clk *rt_clock;
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struct mutex lock;
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int ref_count;
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struct vsp1_lif *lif;
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struct vsp1_rwpf *rpf[VPS1_MAX_RPF];
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struct vsp1_uds *uds[VPS1_MAX_UDS];
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struct vsp1_rwpf *wpf[VPS1_MAX_WPF];
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struct list_head entities;
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struct v4l2_device v4l2_dev;
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struct media_device media_dev;
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};
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struct vsp1_device *vsp1_device_get(struct vsp1_device *vsp1);
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void vsp1_device_put(struct vsp1_device *vsp1);
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static inline u32 vsp1_read(struct vsp1_device *vsp1, u32 reg)
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{
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return ioread32(vsp1->mmio + reg);
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}
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static inline void vsp1_write(struct vsp1_device *vsp1, u32 reg, u32 data)
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{
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iowrite32(data, vsp1->mmio + reg);
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}
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#endif /* __VSP1_H__ */
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