8e93f1028d
The CMA helper is already using the drm_fb_helper_generic_probe part of the generic fbdev emulation. This patch makes full use of the generic fbdev emulation by using its drm_client callbacks. This means that drm_mode_config_funcs->output_poll_changed and drm_driver->lastclose are now handled by the emulation code. Additionally fbdev unregister happens automatically on drm_dev_unregister(). The drm_fbdev_generic_setup() call is put after drm_dev_register() in the driver. This is done to highlight the fact that fbdev emulation is an internal client that makes use of the driver, it is not part of the driver as such. If fbdev setup fails, an error is printed, but the driver succeeds probing. Cc: Marek Vasut <marex@denx.de> Signed-off-by: Noralf Trønnes <noralf@tronnes.org> Acked-by: Sam Ravnborg <sam@ravnborg.org> Link: https://patchwork.freedesktop.org/patch/msgid/20181128212713.43500-3-noralf@tronnes.org
54 lines
1.6 KiB
C
54 lines
1.6 KiB
C
/*
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* Copyright (C) 2016 Marek Vasut <marex@denx.de>
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*
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* i.MX23/i.MX28/i.MX6SX MXSFB LCD controller driver.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#ifndef __MXSFB_DRV_H__
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#define __MXSFB_DRV_H__
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struct mxsfb_devdata {
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unsigned int transfer_count;
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unsigned int cur_buf;
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unsigned int next_buf;
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unsigned int debug0;
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unsigned int hs_wdth_mask;
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unsigned int hs_wdth_shift;
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unsigned int ipversion;
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};
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struct mxsfb_drm_private {
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const struct mxsfb_devdata *devdata;
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void __iomem *base; /* registers */
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struct clk *clk;
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struct clk *clk_axi;
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struct clk *clk_disp_axi;
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struct drm_simple_display_pipe pipe;
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struct drm_connector connector;
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struct drm_panel *panel;
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};
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int mxsfb_setup_crtc(struct drm_device *dev);
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int mxsfb_create_output(struct drm_device *dev);
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void mxsfb_enable_axi_clk(struct mxsfb_drm_private *mxsfb);
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void mxsfb_disable_axi_clk(struct mxsfb_drm_private *mxsfb);
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void mxsfb_crtc_enable(struct mxsfb_drm_private *mxsfb);
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void mxsfb_crtc_disable(struct mxsfb_drm_private *mxsfb);
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void mxsfb_plane_atomic_update(struct mxsfb_drm_private *mxsfb,
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struct drm_plane_state *state);
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#endif /* __MXSFB_DRV_H__ */
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