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a0fbb35ecd
Push responsibility for managing the clock during DPMS down into the variant backend, rather than the CRTC layer having knowledge of its state. Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
90 lines
2.3 KiB
C
90 lines
2.3 KiB
C
/*
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* Copyright (C) 2012 Russell King
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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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#ifndef ARMADA_DRM_H
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#define ARMADA_DRM_H
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#include <linux/kfifo.h>
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#include <linux/io.h>
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#include <linux/workqueue.h>
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#include <drm/drmP.h>
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struct armada_crtc;
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struct armada_gem_object;
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struct clk;
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struct drm_fb_helper;
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static inline void
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armada_updatel(uint32_t val, uint32_t mask, void __iomem *ptr)
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{
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uint32_t ov, v;
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ov = v = readl_relaxed(ptr);
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v = (v & ~mask) | val;
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if (ov != v)
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writel_relaxed(v, ptr);
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}
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static inline uint32_t armada_pitch(uint32_t width, uint32_t bpp)
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{
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uint32_t pitch = bpp != 4 ? width * ((bpp + 7) / 8) : width / 2;
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/* 88AP510 spec recommends pitch be a multiple of 128 */
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return ALIGN(pitch, 128);
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}
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struct armada_private;
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struct armada_variant {
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bool has_spu_adv_reg;
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int (*init)(struct armada_crtc *, struct device *);
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int (*compute_clock)(struct armada_crtc *,
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const struct drm_display_mode *,
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uint32_t *);
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void (*disable)(struct armada_crtc *);
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void (*enable)(struct armada_crtc *, const struct drm_display_mode *);
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};
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/* Variant ops */
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extern const struct armada_variant armada510_ops;
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struct armada_private {
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struct drm_device drm;
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struct work_struct fb_unref_work;
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DECLARE_KFIFO(fb_unref, struct drm_framebuffer *, 8);
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struct drm_fb_helper *fbdev;
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struct armada_crtc *dcrtc[2];
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struct drm_mm linear; /* protected by linear_lock */
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struct mutex linear_lock;
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struct drm_property *colorkey_prop;
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struct drm_property *colorkey_min_prop;
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struct drm_property *colorkey_max_prop;
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struct drm_property *colorkey_val_prop;
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struct drm_property *colorkey_alpha_prop;
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struct drm_property *colorkey_mode_prop;
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struct drm_property *brightness_prop;
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struct drm_property *contrast_prop;
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struct drm_property *saturation_prop;
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#ifdef CONFIG_DEBUG_FS
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struct dentry *de;
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#endif
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};
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void __armada_drm_queue_unref_work(struct drm_device *,
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struct drm_framebuffer *);
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void armada_drm_queue_unref_work(struct drm_device *,
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struct drm_framebuffer *);
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int armada_fbdev_init(struct drm_device *);
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void armada_fbdev_fini(struct drm_device *);
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int armada_overlay_plane_create(struct drm_device *, unsigned long);
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int armada_drm_debugfs_init(struct drm_minor *);
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#endif
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