c8b75bca92
This is enough for fbcon and bringing up X using
xf86-video-modesetting. It doesn't support the 3D accelerator or
power management yet.
v2: Drop FB_HELPER select thanks to Archit's patches. Do manual init
ordering instead of using the .load hook. Structure registration
more like tegra's, but still using the typical "component" code.
Drop no-op hooks for atomic_begin and mode_fixup() now that
they're optional. Drop sentinel in Makefile. Fix minor style
nits I noticed on another reread.
v3: Use the new bcm2835 clk driver to manage pixel/HSM clocks instead
of having a fixed video mode. Use exynos-style component driver
matching instead of devicetree nodes to list the component driver
instances. Rename compatibility strings to say bcm2835, and
distinguish pv0/1/2. Clean up some h/vsync code, and add in
interlaced mode setup. Fix up probe/bind error paths. Use
bitops.h macros for vc4_regs.h
v4: Include i2c.h, allow building under COMPILE_TEST, drop msleep now
that other bugs have been fixed, add timeouts to cpu_relax()
loops, rename hpd-gpio to hpd-gpios.
Signed-off-by: Eric Anholt <eric@anholt.net>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
54 lines
1.3 KiB
C
54 lines
1.3 KiB
C
/*
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* Copyright (C) 2015 Broadcom
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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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* DOC: VC4 KMS
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*
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* This is the general code for implementing KMS mode setting that
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* doesn't clearly associate with any of the other objects (plane,
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* crtc, HDMI encoder).
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*/
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#include "drm_crtc.h"
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#include "drm_atomic_helper.h"
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#include "drm_crtc_helper.h"
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#include "drm_plane_helper.h"
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#include "drm_fb_cma_helper.h"
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#include "vc4_drv.h"
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static const struct drm_mode_config_funcs vc4_mode_funcs = {
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.atomic_check = drm_atomic_helper_check,
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.atomic_commit = drm_atomic_helper_commit,
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.fb_create = drm_fb_cma_create,
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};
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int vc4_kms_load(struct drm_device *dev)
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{
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int ret;
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ret = drm_vblank_init(dev, dev->mode_config.num_crtc);
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if (ret < 0) {
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dev_err(dev->dev, "failed to initialize vblank\n");
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return ret;
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}
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dev->mode_config.max_width = 2048;
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dev->mode_config.max_height = 2048;
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dev->mode_config.funcs = &vc4_mode_funcs;
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dev->mode_config.preferred_depth = 24;
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drm_mode_config_reset(dev);
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drm_fbdev_cma_init(dev, 32,
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dev->mode_config.num_crtc,
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dev->mode_config.num_connector);
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drm_kms_helper_poll_init(dev);
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return 0;
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}
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