From: Jake Wang <haonan.wang2@xxxxxxx>
[WHY & HOW]
Driver currently assumes only 1 eDP is connected. Added support for
multiple eDP BL control.
Signed-off-by: Jake Wang <haonan.wang2@xxxxxxx>
Acked-by: Bindu Ramamurthy <bindur12@xxxxxxx>
---
.../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];
};
/**
--
2.25.1
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