diff options
Diffstat (limited to 'drivers/gpu/drm/msm/disp/dpu1/dpu_hw_top.h')
-rw-r--r-- | drivers/gpu/drm/msm/disp/dpu1/dpu_hw_top.h | 159 |
1 files changed, 159 insertions, 0 deletions
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_top.h b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_top.h new file mode 100644 index 000000000..a1a9e44be --- /dev/null +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_top.h @@ -0,0 +1,159 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* Copyright (c) 2015-2018, The Linux Foundation. All rights reserved. + */ + +#ifndef _DPU_HW_TOP_H +#define _DPU_HW_TOP_H + +#include "dpu_hw_catalog.h" +#include "dpu_hw_mdss.h" +#include "dpu_hw_util.h" + +struct dpu_hw_mdp; + +/** + * struct traffic_shaper_cfg: traffic shaper configuration + * @en : enable/disable traffic shaper + * @rd_client : true if read client; false if write client + * @client_id : client identifier + * @bpc_denom : denominator of byte per clk + * @bpc_numer : numerator of byte per clk + */ +struct traffic_shaper_cfg { + bool en; + bool rd_client; + u32 client_id; + u32 bpc_denom; + u64 bpc_numer; +}; + +/** + * struct split_pipe_cfg - pipe configuration for dual display panels + * @en : Enable/disable dual pipe configuration + * @mode : Panel interface mode + * @intf : Interface id for main control path + * @split_flush_en: Allows both the paths to be flushed when master path is + * flushed + */ +struct split_pipe_cfg { + bool en; + enum dpu_intf_mode mode; + enum dpu_intf intf; + bool split_flush_en; +}; + +/** + * struct dpu_danger_safe_status: danger and safe status signals + * @mdp: top level status + * @sspp: source pipe status + */ +struct dpu_danger_safe_status { + u8 mdp; + u8 sspp[SSPP_MAX]; +}; + +/** + * struct dpu_vsync_source_cfg - configure vsync source and configure the + * watchdog timers if required. + * @pp_count: number of ping pongs active + * @frame_rate: Display frame rate + * @ppnumber: ping pong index array + * @vsync_source: vsync source selection + */ +struct dpu_vsync_source_cfg { + u32 pp_count; + u32 frame_rate; + u32 ppnumber[PINGPONG_MAX]; + u32 vsync_source; +}; + +/** + * struct dpu_hw_mdp_ops - interface to the MDP TOP Hw driver functions + * Assumption is these functions will be called after clocks are enabled. + * @setup_split_pipe : Programs the pipe control registers + * @setup_pp_split : Programs the pp split control registers + * @setup_traffic_shaper : programs traffic shaper control + */ +struct dpu_hw_mdp_ops { + /** setup_split_pipe() : Registers are not double buffered, thisk + * function should be called before timing control enable + * @mdp : mdp top context driver + * @cfg : upper and lower part of pipe configuration + */ + void (*setup_split_pipe)(struct dpu_hw_mdp *mdp, + struct split_pipe_cfg *p); + + /** + * setup_traffic_shaper() : Setup traffic shaper control + * @mdp : mdp top context driver + * @cfg : traffic shaper configuration + */ + void (*setup_traffic_shaper)(struct dpu_hw_mdp *mdp, + struct traffic_shaper_cfg *cfg); + + /** + * setup_clk_force_ctrl - set clock force control + * @mdp: mdp top context driver + * @clk_ctrl: clock to be controlled + * @enable: force on enable + * @return: if the clock is forced-on by this function + */ + bool (*setup_clk_force_ctrl)(struct dpu_hw_mdp *mdp, + enum dpu_clk_ctrl_type clk_ctrl, bool enable); + + /** + * get_danger_status - get danger status + * @mdp: mdp top context driver + * @status: Pointer to danger safe status + */ + void (*get_danger_status)(struct dpu_hw_mdp *mdp, + struct dpu_danger_safe_status *status); + + /** + * setup_vsync_source - setup vsync source configuration details + * @mdp: mdp top context driver + * @cfg: vsync source selection configuration + */ + void (*setup_vsync_source)(struct dpu_hw_mdp *mdp, + struct dpu_vsync_source_cfg *cfg); + + /** + * get_safe_status - get safe status + * @mdp: mdp top context driver + * @status: Pointer to danger safe status + */ + void (*get_safe_status)(struct dpu_hw_mdp *mdp, + struct dpu_danger_safe_status *status); + + /** + * intf_audio_select - select the external interface for audio + * @mdp: mdp top context driver + */ + void (*intf_audio_select)(struct dpu_hw_mdp *mdp); +}; + +struct dpu_hw_mdp { + struct dpu_hw_blk base; + struct dpu_hw_blk_reg_map hw; + + /* top */ + enum dpu_mdp idx; + const struct dpu_mdp_cfg *caps; + + /* ops */ + struct dpu_hw_mdp_ops ops; +}; + +/** + * dpu_hw_mdptop_init - initializes the top driver for the passed idx + * @idx: Interface index for which driver object is required + * @addr: Mapped register io address of MDP + * @m: Pointer to mdss catalog data + */ +struct dpu_hw_mdp *dpu_hw_mdptop_init(enum dpu_mdp idx, + void __iomem *addr, + const struct dpu_mdss_cfg *m); + +void dpu_hw_mdp_destroy(struct dpu_hw_mdp *mdp); + +#endif /*_DPU_HW_TOP_H */ |