drivers/media/platform/mtk-mdp/mtk_mdp_comp.h

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2 /*
   3  * Copyright (c) 2016 MediaTek Inc.
   4  * Author: Ming Hsiu Tsai <minghsiu.tsai@mediatek.com>
   5  */
   6
   7 #ifndef __MTK_MDP_COMP_H__
   8 #define __MTK_MDP_COMP_H__
   9
  10 /**
  11  * enum mtk_mdp_comp_type - the MDP component
  12  * @MTK_MDP_RDMA:       Read DMA
  13  * @MTK_MDP_RSZ:        Riszer
  14  * @MTK_MDP_WDMA:       Write DMA
  15  * @MTK_MDP_WROT:       Write DMA with rotation
  16  */
  17 enum mtk_mdp_comp_type {
  18         MTK_MDP_RDMA,
  19         MTK_MDP_RSZ,
  20         MTK_MDP_WDMA,
  21         MTK_MDP_WROT,
  22         MTK_MDP_COMP_TYPE_MAX,
  23 };
  24
  25 enum mtk_mdp_comp_id {
  26         MTK_MDP_COMP_RDMA0,
  27         MTK_MDP_COMP_RDMA1,
  28         MTK_MDP_COMP_RSZ0,
  29         MTK_MDP_COMP_RSZ1,
  30         MTK_MDP_COMP_RSZ2,
  31         MTK_MDP_COMP_WDMA,
  32         MTK_MDP_COMP_WROT0,
  33         MTK_MDP_COMP_WROT1,
  34         MTK_MDP_COMP_ID_MAX,
  35 };
  36
  37 /**
  38  * struct mtk_mdp_comp - the MDP's function component data
  39  * @dev_node:   component device node
  40  * @clk:        clocks required for component
  41  * @regs:       Mapped address of component registers.
  42  * @larb_dev:   SMI device required for component
  43  * @type:       component type
  44  * @id:         component ID
  45  */
  46 struct mtk_mdp_comp {
  47         struct device_node      *dev_node;
  48         struct clk              *clk[2];
  49         void __iomem            *regs;
  50         struct device           *larb_dev;
  51         enum mtk_mdp_comp_type  type;
  52         enum mtk_mdp_comp_id    id;
  53 };
  54
  55 int mtk_mdp_comp_init(struct device *dev, struct device_node *node,
  56                       struct mtk_mdp_comp *comp, enum mtk_mdp_comp_id comp_id);
  57 void mtk_mdp_comp_deinit(struct device *dev, struct mtk_mdp_comp *comp);
  58 int mtk_mdp_comp_get_id(struct device *dev, struct device_node *node,
  59                         enum mtk_mdp_comp_type comp_type);
  60 void mtk_mdp_comp_clock_on(struct device *dev, struct mtk_mdp_comp *comp);
  61 void mtk_mdp_comp_clock_off(struct device *dev, struct mtk_mdp_comp *comp);
  62
  63
  64 #endif /* __MTK_MDP_COMP_H__ */