forked from Minki/linux
119f517362
This patch adds an initial DRM driver for the Mediatek MT8173 DISP subsystem. It currently supports two fixed output streams from the OVL0/OVL1 sources to the DSI0/DPI0 sinks, respectively. Signed-off-by: CK Hu <ck.hu@mediatek.com> Signed-off-by: YT Shen <yt.shen@mediatek.com> Signed-off-by: Daniel Kurtz <djkurtz@chromium.org> Signed-off-by: Bibby Hsieh <bibby.hsieh@mediatek.com> Signed-off-by: Mao Huang <littlecvr@chromium.org> Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
151 lines
3.9 KiB
C
151 lines
3.9 KiB
C
/*
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* Copyright (c) 2015 MediaTek Inc.
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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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* 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 MTK_DRM_DDP_COMP_H
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#define MTK_DRM_DDP_COMP_H
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#include <linux/io.h>
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struct device;
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struct device_node;
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struct drm_crtc;
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struct drm_device;
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struct mtk_plane_state;
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enum mtk_ddp_comp_type {
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MTK_DISP_OVL,
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MTK_DISP_RDMA,
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MTK_DISP_WDMA,
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MTK_DISP_COLOR,
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MTK_DISP_AAL,
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MTK_DISP_GAMMA,
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MTK_DISP_UFOE,
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MTK_DSI,
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MTK_DPI,
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MTK_DISP_PWM,
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MTK_DISP_MUTEX,
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MTK_DISP_OD,
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MTK_DDP_COMP_TYPE_MAX,
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};
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enum mtk_ddp_comp_id {
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DDP_COMPONENT_AAL,
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DDP_COMPONENT_COLOR0,
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DDP_COMPONENT_COLOR1,
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DDP_COMPONENT_DPI0,
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DDP_COMPONENT_DSI0,
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DDP_COMPONENT_DSI1,
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DDP_COMPONENT_GAMMA,
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DDP_COMPONENT_OD,
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DDP_COMPONENT_OVL0,
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DDP_COMPONENT_OVL1,
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DDP_COMPONENT_PWM0,
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DDP_COMPONENT_PWM1,
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DDP_COMPONENT_RDMA0,
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DDP_COMPONENT_RDMA1,
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DDP_COMPONENT_RDMA2,
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DDP_COMPONENT_UFOE,
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DDP_COMPONENT_WDMA0,
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DDP_COMPONENT_WDMA1,
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DDP_COMPONENT_ID_MAX,
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};
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struct mtk_ddp_comp;
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struct mtk_ddp_comp_funcs {
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void (*config)(struct mtk_ddp_comp *comp, unsigned int w,
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unsigned int h, unsigned int vrefresh);
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void (*start)(struct mtk_ddp_comp *comp);
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void (*stop)(struct mtk_ddp_comp *comp);
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void (*enable_vblank)(struct mtk_ddp_comp *comp, struct drm_crtc *crtc);
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void (*disable_vblank)(struct mtk_ddp_comp *comp);
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void (*layer_on)(struct mtk_ddp_comp *comp, unsigned int idx);
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void (*layer_off)(struct mtk_ddp_comp *comp, unsigned int idx);
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void (*layer_config)(struct mtk_ddp_comp *comp, unsigned int idx,
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struct mtk_plane_state *state);
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};
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struct mtk_ddp_comp {
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struct clk *clk;
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void __iomem *regs;
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int irq;
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struct device *larb_dev;
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enum mtk_ddp_comp_id id;
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const struct mtk_ddp_comp_funcs *funcs;
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};
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static inline void mtk_ddp_comp_config(struct mtk_ddp_comp *comp,
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unsigned int w, unsigned int h,
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unsigned int vrefresh)
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{
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if (comp->funcs && comp->funcs->config)
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comp->funcs->config(comp, w, h, vrefresh);
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}
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static inline void mtk_ddp_comp_start(struct mtk_ddp_comp *comp)
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{
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if (comp->funcs && comp->funcs->start)
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comp->funcs->start(comp);
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}
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static inline void mtk_ddp_comp_stop(struct mtk_ddp_comp *comp)
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{
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if (comp->funcs && comp->funcs->stop)
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comp->funcs->stop(comp);
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}
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static inline void mtk_ddp_comp_enable_vblank(struct mtk_ddp_comp *comp,
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struct drm_crtc *crtc)
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{
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if (comp->funcs && comp->funcs->enable_vblank)
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comp->funcs->enable_vblank(comp, crtc);
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}
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static inline void mtk_ddp_comp_disable_vblank(struct mtk_ddp_comp *comp)
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{
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if (comp->funcs && comp->funcs->disable_vblank)
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comp->funcs->disable_vblank(comp);
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}
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static inline void mtk_ddp_comp_layer_on(struct mtk_ddp_comp *comp,
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unsigned int idx)
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{
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if (comp->funcs && comp->funcs->layer_on)
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comp->funcs->layer_on(comp, idx);
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}
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static inline void mtk_ddp_comp_layer_off(struct mtk_ddp_comp *comp,
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unsigned int idx)
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{
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if (comp->funcs && comp->funcs->layer_off)
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comp->funcs->layer_off(comp, idx);
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}
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static inline void mtk_ddp_comp_layer_config(struct mtk_ddp_comp *comp,
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unsigned int idx,
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struct mtk_plane_state *state)
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{
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if (comp->funcs && comp->funcs->layer_config)
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comp->funcs->layer_config(comp, idx, state);
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}
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int mtk_ddp_comp_get_id(struct device_node *node,
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enum mtk_ddp_comp_type comp_type);
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int mtk_ddp_comp_init(struct device *dev, struct device_node *comp_node,
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struct mtk_ddp_comp *comp, enum mtk_ddp_comp_id comp_id,
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const struct mtk_ddp_comp_funcs *funcs);
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int mtk_ddp_comp_register(struct drm_device *drm, struct mtk_ddp_comp *comp);
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void mtk_ddp_comp_unregister(struct drm_device *drm, struct mtk_ddp_comp *comp);
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#endif /* MTK_DRM_DDP_COMP_H */
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