linux/include/drm/bridge/dw_mipi_dsi.h
Liu Ying 5a67ec8c64
drm/bridge: synopsys: dw-mipi-dsi: Add mode fixup support
Vendor drivers may need to fixup mode due to pixel clock tree limitation,
so introduce the ->mode_fixup() callcack to struct dw_mipi_dsi_plat_data
and call it at atomic check stage if available.

Signed-off-by: Liu Ying <victor.liu@nxp.com>
Reviewed-by: Robert Foss <rfoss@kernel.org>
Signed-off-by: Robert Foss <rfoss@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230821034008.3876938-5-victor.liu@nxp.com
2023-10-16 11:38:42 +02:00

89 lines
2.5 KiB
C

/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Copyright (C) STMicroelectronics SA 2017
*
* Authors: Philippe Cornu <philippe.cornu@st.com>
* Yannick Fertre <yannick.fertre@st.com>
*/
#ifndef __DW_MIPI_DSI__
#define __DW_MIPI_DSI__
#include <linux/types.h>
#include <drm/drm_atomic.h>
#include <drm/drm_bridge.h>
#include <drm/drm_connector.h>
#include <drm/drm_crtc.h>
#include <drm/drm_modes.h>
struct drm_display_mode;
struct drm_encoder;
struct dw_mipi_dsi;
struct mipi_dsi_device;
struct platform_device;
struct dw_mipi_dsi_dphy_timing {
u16 data_hs2lp;
u16 data_lp2hs;
u16 clk_hs2lp;
u16 clk_lp2hs;
};
struct dw_mipi_dsi_phy_ops {
int (*init)(void *priv_data);
void (*power_on)(void *priv_data);
void (*power_off)(void *priv_data);
int (*get_lane_mbps)(void *priv_data,
const struct drm_display_mode *mode,
unsigned long mode_flags, u32 lanes, u32 format,
unsigned int *lane_mbps);
int (*get_timing)(void *priv_data, unsigned int lane_mbps,
struct dw_mipi_dsi_dphy_timing *timing);
int (*get_esc_clk_rate)(void *priv_data, unsigned int *esc_clk_rate);
};
struct dw_mipi_dsi_host_ops {
int (*attach)(void *priv_data,
struct mipi_dsi_device *dsi);
int (*detach)(void *priv_data,
struct mipi_dsi_device *dsi);
};
struct dw_mipi_dsi_plat_data {
void __iomem *base;
unsigned int max_data_lanes;
enum drm_mode_status (*mode_valid)(void *priv_data,
const struct drm_display_mode *mode,
unsigned long mode_flags,
u32 lanes, u32 format);
bool (*mode_fixup)(void *priv_data, const struct drm_display_mode *mode,
struct drm_display_mode *adjusted_mode);
u32 *(*get_input_bus_fmts)(void *priv_data,
struct drm_bridge *bridge,
struct drm_bridge_state *bridge_state,
struct drm_crtc_state *crtc_state,
struct drm_connector_state *conn_state,
u32 output_fmt,
unsigned int *num_input_fmts);
const struct dw_mipi_dsi_phy_ops *phy_ops;
const struct dw_mipi_dsi_host_ops *host_ops;
void *priv_data;
};
struct dw_mipi_dsi *dw_mipi_dsi_probe(struct platform_device *pdev,
const struct dw_mipi_dsi_plat_data
*plat_data);
void dw_mipi_dsi_remove(struct dw_mipi_dsi *dsi);
int dw_mipi_dsi_bind(struct dw_mipi_dsi *dsi, struct drm_encoder *encoder);
void dw_mipi_dsi_unbind(struct dw_mipi_dsi *dsi);
void dw_mipi_dsi_set_slave(struct dw_mipi_dsi *dsi, struct dw_mipi_dsi *slave);
struct drm_bridge *dw_mipi_dsi_get_bridge(struct dw_mipi_dsi *dsi);
#endif /* __DW_MIPI_DSI__ */