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5fc40f41c1
Drop the DRM IRQ midlayer in favor of Linux IRQ interfaces. DRM's IRQ helpers are mostly useful for UMS drivers. Modern KMS drivers don't benefit from using it. DRM IRQ callbacks are now being called directly or inlined. Calls to platform_get_irq() can fail with a negative errno code. Abort initialization in this case. The DRM IRQ midlayer does not handle this case correctly. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Acked-by: Sam Ravnborg <sam@ravnborg.org> Link: https://patchwork.freedesktop.org/patch/msgid/20210803090704.32152-9-tzimmermann@suse.de
60 lines
1.3 KiB
C
60 lines
1.3 KiB
C
/* SPDX-License-Identifier: GPL-2.0-or-later */
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/*
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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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#ifndef __MXSFB_DRV_H__
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#define __MXSFB_DRV_H__
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#include <drm/drm_crtc.h>
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#include <drm/drm_device.h>
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#include <drm/drm_encoder.h>
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#include <drm/drm_plane.h>
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struct clk;
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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 hs_wdth_mask;
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unsigned int hs_wdth_shift;
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bool has_overlay;
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bool has_ctrl2;
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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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unsigned int irq;
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struct drm_device *drm;
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struct {
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struct drm_plane primary;
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struct drm_plane overlay;
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} planes;
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struct drm_crtc crtc;
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struct drm_encoder encoder;
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struct drm_connector *connector;
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struct drm_bridge *bridge;
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};
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static inline struct mxsfb_drm_private *
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to_mxsfb_drm_private(struct drm_device *drm)
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{
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return drm->dev_private;
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}
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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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int mxsfb_kms_init(struct mxsfb_drm_private *mxsfb);
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#endif /* __MXSFB_DRV_H__ */
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