linux/drivers/gpu/drm/i915/display/intel_lspcon.h
Uma Shankar 2e666613b2 drm/i915/display: Attach HDR property for capable Gen9 devices
Attach HDR property for Gen9 devices with MCA LSPCON
chips.

v2: Cleaned HDR property attachment logic based on capability
as per Jani Nikula's suggestion.

v3: Fixed the HDR property attachment logic as per the new changes
by Kai-Feng to align with lspcon detection failure on some devices.

v4: Add HDR proprty in late_register to handle lspcon detection,
as suggested by Ville.

v5: Init Lspcon only if advertized from BIOS.

v6: Added a Todo to plan a cleanup later, added Ville's RB.

Signed-off-by: Uma Shankar <uma.shankar@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20201130204738.2443-4-uma.shankar@intel.com
2020-12-02 01:22:29 +05:30

41 lines
1.3 KiB
C

/* SPDX-License-Identifier: MIT */
/*
* Copyright © 2019 Intel Corporation
*/
#ifndef __INTEL_LSPCON_H__
#define __INTEL_LSPCON_H__
#include <linux/types.h>
struct drm_connector;
struct drm_connector_state;
struct intel_crtc_state;
struct intel_digital_port;
struct intel_encoder;
struct intel_lspcon;
bool lspcon_init(struct intel_digital_port *dig_port);
void lspcon_detect_hdr_capability(struct intel_lspcon *lspcon);
void lspcon_resume(struct intel_digital_port *dig_port);
void lspcon_wait_pcon_mode(struct intel_lspcon *lspcon);
void lspcon_write_infoframe(struct intel_encoder *encoder,
const struct intel_crtc_state *crtc_state,
unsigned int type,
const void *buf, ssize_t len);
void lspcon_read_infoframe(struct intel_encoder *encoder,
const struct intel_crtc_state *crtc_state,
unsigned int type,
void *frame, ssize_t len);
void lspcon_set_infoframes(struct intel_encoder *encoder,
bool enable,
const struct intel_crtc_state *crtc_state,
const struct drm_connector_state *conn_state);
u32 lspcon_infoframes_enabled(struct intel_encoder *encoder,
const struct intel_crtc_state *pipe_config);
void hsw_write_infoframe(struct intel_encoder *encoder,
const struct intel_crtc_state *crtc_state,
unsigned int type,
const void *frame, ssize_t len);
#endif /* __INTEL_LSPCON_H__ */