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https://github.com/edk2-porting/linux-next.git
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2ab8b458c6
This driver makes use of the generic panel information from the VBT. Panel information is classified into two - panel configuration and panel power sequence which is unique to each panel. The generic driver uses the panel configuration and sequence parsed from VBT block #52 and #53 v2: Address review comments by Jani - Move all of the things in driver c file from header - Make all functions static - Make use of video/mipi_display.c instead of redefining - Null checks during sequence execution v3: Address review comments by Damien - Rename the panel driver file as intel_dsi_panel_vbt.c - Fix style changes as suggested - Correct comments for lp->hs and hs->lp count calculations - General updating comments to have more clarity - using max() instead of ternary operator - Fix names (ui_num, ui_den) while using UI in calculations - compute max of lp_to_hs switch and hs_to_lp switch while computing hs_lp_switch_count Signed-off-by: Shobhit Kumar <shobhit.kumar@intel.com> Reviewed-by: Damien Lespiau <damien.lespiau@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
139 lines
3.8 KiB
C
139 lines
3.8 KiB
C
/*
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* Copyright © 2013 Intel Corporation
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*/
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#ifndef _INTEL_DSI_H
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#define _INTEL_DSI_H
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#include <drm/drmP.h>
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#include <drm/drm_crtc.h>
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#include "intel_drv.h"
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struct intel_dsi_device {
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unsigned int panel_id;
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const char *name;
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const struct intel_dsi_dev_ops *dev_ops;
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void *dev_priv;
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};
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struct intel_dsi_dev_ops {
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bool (*init)(struct intel_dsi_device *dsi);
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void (*panel_reset)(struct intel_dsi_device *dsi);
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void (*disable_panel_power)(struct intel_dsi_device *dsi);
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/* one time programmable commands if needed */
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void (*send_otp_cmds)(struct intel_dsi_device *dsi);
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/* This callback must be able to assume DSI commands can be sent */
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void (*enable)(struct intel_dsi_device *dsi);
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/* This callback must be able to assume DSI commands can be sent */
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void (*disable)(struct intel_dsi_device *dsi);
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int (*mode_valid)(struct intel_dsi_device *dsi,
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struct drm_display_mode *mode);
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bool (*mode_fixup)(struct intel_dsi_device *dsi,
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const struct drm_display_mode *mode,
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struct drm_display_mode *adjusted_mode);
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void (*mode_set)(struct intel_dsi_device *dsi,
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struct drm_display_mode *mode,
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struct drm_display_mode *adjusted_mode);
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enum drm_connector_status (*detect)(struct intel_dsi_device *dsi);
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bool (*get_hw_state)(struct intel_dsi_device *dev);
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struct drm_display_mode *(*get_modes)(struct intel_dsi_device *dsi);
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void (*destroy) (struct intel_dsi_device *dsi);
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};
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struct intel_dsi {
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struct intel_encoder base;
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struct intel_dsi_device dev;
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struct intel_connector *attached_connector;
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/* if true, use HS mode, otherwise LP */
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bool hs;
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/* virtual channel */
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int channel;
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/* Video mode or command mode */
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u16 operation_mode;
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/* number of DSI lanes */
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unsigned int lane_count;
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/* video mode pixel format for MIPI_DSI_FUNC_PRG register */
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u32 pixel_format;
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/* video mode format for MIPI_VIDEO_MODE_FORMAT register */
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u32 video_mode_format;
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/* eot for MIPI_EOT_DISABLE register */
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u8 eotp_pkt;
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u8 clock_stop;
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u8 escape_clk_div;
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u32 port_bits;
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u32 bw_timer;
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u32 dphy_reg;
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u32 video_frmt_cfg_bits;
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u16 lp_byte_clk;
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/* timeouts in byte clocks */
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u16 lp_rx_timeout;
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u16 turn_arnd_val;
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u16 rst_timer_val;
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u16 hs_to_lp_count;
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u16 clk_lp_to_hs_count;
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u16 clk_hs_to_lp_count;
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u16 init_count;
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/* all delays in ms */
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u16 backlight_off_delay;
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u16 backlight_on_delay;
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u16 panel_on_delay;
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u16 panel_off_delay;
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u16 panel_pwr_cycle_delay;
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};
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static inline struct intel_dsi *enc_to_intel_dsi(struct drm_encoder *encoder)
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{
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return container_of(encoder, struct intel_dsi, base.base);
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}
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extern void vlv_enable_dsi_pll(struct intel_encoder *encoder);
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extern void vlv_disable_dsi_pll(struct intel_encoder *encoder);
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extern struct intel_dsi_dev_ops vbt_generic_dsi_display_ops;
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#endif /* _INTEL_DSI_H */
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