From e922057b556d37c54f8f88e44f7d7b731d6365b1 Mon Sep 17 00:00:00 2001 From: Jake Wang Date: Thu, 1 Apr 2021 15:04:50 -0400 Subject: [PATCH] drm/amd/display: Added support for multiple eDP BL control [WHY & HOW] Driver currently assumes only 1 eDP is connected. Added support for multiple eDP BL control. Signed-off-by: Jake Wang Acked-by: Bindu Ramamurthy Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher --- .../drm/amd/display/dc/dcn21/dcn21_hwseq.c | 2 ++ .../gpu/drm/amd/display/dmub/inc/dmub_cmd.h | 27 +++++++++++++++++++ 2 files changed, 29 insertions(+) diff --git a/drivers/gpu/drm/amd/display/dc/dcn21/dcn21_hwseq.c b/drivers/gpu/drm/amd/display/dc/dcn21/dcn21_hwseq.c index d3b643089603..8fccee5a3036 100644 --- a/drivers/gpu/drm/amd/display/dc/dcn21/dcn21_hwseq.c +++ b/drivers/gpu/drm/amd/display/dc/dcn21/dcn21_hwseq.c @@ -218,6 +218,8 @@ bool dcn21_set_backlight_level(struct pipe_ctx *pipe_ctx, cmd.abm_set_backlight.header.sub_type = DMUB_CMD__ABM_SET_BACKLIGHT; cmd.abm_set_backlight.abm_set_backlight_data.frame_ramp = frame_ramp; cmd.abm_set_backlight.abm_set_backlight_data.backlight_user_level = backlight_pwm_u16_16; + cmd.abm_set_backlight.abm_set_backlight_data.version = DMUB_CMD_ABM_SET_BACKLIGHT_VERSION_1; + cmd.abm_set_backlight.abm_set_backlight_data.panel_mask = (0x01 << panel_cntl->inst); cmd.abm_set_backlight.header.payload_bytes = sizeof(struct dmub_cmd_abm_set_backlight_data); dc_dmub_srv_cmd_queue(dc->dmub_srv, &cmd); diff --git a/drivers/gpu/drm/amd/display/dmub/inc/dmub_cmd.h b/drivers/gpu/drm/amd/display/dmub/inc/dmub_cmd.h index 9b3e31103bdd..cec1ab91274b 100644 --- a/drivers/gpu/drm/amd/display/dmub/inc/dmub_cmd.h +++ b/drivers/gpu/drm/amd/display/dmub/inc/dmub_cmd.h @@ -120,6 +120,16 @@ /* Trace buffer offset for entry */ #define TRACE_BUFFER_ENTRY_OFFSET 16 +/** + * ABM backlight control version legacy + */ +#define DMUB_CMD_ABM_SET_BACKLIGHT_VERSION_UNKNOWN 0x0 + +/** + * ABM backlight control version with multi edp support + */ +#define DMUB_CMD_ABM_SET_BACKLIGHT_VERSION_1 0x1 + /** * Physical framebuffer address location, 64-bit. */ @@ -1625,6 +1635,23 @@ struct dmub_cmd_abm_set_backlight_data { * Requested backlight level from user. */ uint32_t backlight_user_level; + + /** + * Backlight data version. + */ + uint8_t version; + + /** + * Panel Control HW instance mask. + * Bit 0 is Panel Control HW instance 0. + * Bit 1 is Panel Control HW instance 1. + */ + uint8_t panel_mask; + + /** + * Explicit padding to 4 byte boundary. + */ + uint8_t pad[2]; }; /**