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

   1 /*
   2  * Copyright (c) 2016 MediaTek Inc.
   3  * Author: Ming Hsiu Tsai <minghsiu.tsai@mediatek.com>
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License version 2 as
   7  * published by the Free Software Foundation.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  */
  14
  15 #ifndef __MTK_MDP_COMP_H__
  16 #define __MTK_MDP_COMP_H__
  17
  18 /**
  19  * enum mtk_mdp_comp_type - the MDP component
  20  * @MTK_MDP_RDMA:       Read DMA
  21  * @MTK_MDP_RSZ:        Riszer
  22  * @MTK_MDP_WDMA:       Write DMA
  23  * @MTK_MDP_WROT:       Write DMA with rotation
  24  */
  25 enum mtk_mdp_comp_type {
  26         MTK_MDP_RDMA,
  27         MTK_MDP_RSZ,
  28         MTK_MDP_WDMA,
  29         MTK_MDP_WROT,
  30         MTK_MDP_COMP_TYPE_MAX,
  31 };
  32
  33 enum mtk_mdp_comp_id {
  34         MTK_MDP_COMP_RDMA0,
  35         MTK_MDP_COMP_RDMA1,
  36         MTK_MDP_COMP_RSZ0,
  37         MTK_MDP_COMP_RSZ1,
  38         MTK_MDP_COMP_RSZ2,
  39         MTK_MDP_COMP_WDMA,
  40         MTK_MDP_COMP_WROT0,
  41         MTK_MDP_COMP_WROT1,
  42         MTK_MDP_COMP_ID_MAX,
  43 };
  44
  45 /**
  46  * struct mtk_mdp_comp - the MDP's function component data
  47  * @dev_node:   component device node
  48  * @clk:        clocks required for component
  49  * @regs:       Mapped address of component registers.
  50  * @larb_dev:   SMI device required for component
  51  * @type:       component type
  52  * @id:         component ID
  53  */
  54 struct mtk_mdp_comp {
  55         struct device_node      *dev_node;
  56         struct clk              *clk[2];
  57         void __iomem            *regs;
  58         struct device           *larb_dev;
  59         enum mtk_mdp_comp_type  type;
  60         enum mtk_mdp_comp_id    id;
  61 };
  62
  63 int mtk_mdp_comp_init(struct device *dev, struct device_node *node,
  64                       struct mtk_mdp_comp *comp, enum mtk_mdp_comp_id comp_id);
  65 void mtk_mdp_comp_deinit(struct device *dev, struct mtk_mdp_comp *comp);
  66 int mtk_mdp_comp_get_id(struct device *dev, struct device_node *node,
  67                         enum mtk_mdp_comp_type comp_type);
  68 void mtk_mdp_comp_clock_on(struct device *dev, struct mtk_mdp_comp *comp);
  69 void mtk_mdp_comp_clock_off(struct device *dev, struct mtk_mdp_comp *comp);
  70
  71
  72 #endif /* __MTK_MDP_COMP_H__ */