LXR linux/drivers/media/platform/mtk-mdp/mtk_mdp

   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 */
  25enum 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
  33enum 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 */
  54struct 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
  63int mtk_mdp_comp_init(struct device *dev, struct device_node *node,
  64                      struct mtk_mdp_comp *comp, enum mtk_mdp_comp_id comp_id);
  65void mtk_mdp_comp_deinit(struct device *dev, struct mtk_mdp_comp *comp);
  66int mtk_mdp_comp_get_id(struct device *dev, struct device_node *node,
  67                        enum mtk_mdp_comp_type comp_type);
  68void mtk_mdp_comp_clock_on(struct device *dev, struct mtk_mdp_comp *comp);
  69void mtk_mdp_comp_clock_off(struct device *dev, struct mtk_mdp_comp *comp);
  70
  71
  72#endif /* __MTK_MDP_COMP_H__ */
  73