[PATCH 04/20] drm/amd/display: Hook up DAC to bios_parser_encoder_control
Timur Kristóf
timur.kristof at gmail.com
Wed Jul 23 15:57:57 UTC 2025
The BIOS parser already supports calling the DAC1EncoderControl
function from the VBIOS, but it was not exposed anywhere.
This commit enables the codebase to use encoder_control()
when the encoder engine is one of the DACs.
Signed-off-by: Timur Kristóf <timur.kristof at gmail.com>
---
.../gpu/drm/amd/display/dc/bios/bios_parser.c | 16 ++++++++++++++++
1 file changed, 16 insertions(+)
diff --git a/drivers/gpu/drm/amd/display/dc/bios/bios_parser.c b/drivers/gpu/drm/amd/display/dc/bios/bios_parser.c
index 67f08495b7e6..6914dd6944b7 100644
--- a/drivers/gpu/drm/amd/display/dc/bios/bios_parser.c
+++ b/drivers/gpu/drm/amd/display/dc/bios/bios_parser.c
@@ -745,6 +745,22 @@ static enum bp_result bios_parser_encoder_control(
{
struct bios_parser *bp = BP_FROM_DCB(dcb);
+ if (cntl->engine_id == ENGINE_ID_DACA) {
+ if (!bp->cmd_tbl.dac1_encoder_control)
+ return BP_RESULT_FAILURE;
+
+ return bp->cmd_tbl.dac1_encoder_control(
+ bp, cntl->action == ENCODER_CONTROL_ENABLE,
+ cntl->pixel_clock, ATOM_DAC1_PS2);
+ } else if (cntl->engine_id == ENGINE_ID_DACB) {
+ if (!bp->cmd_tbl.dac2_encoder_control)
+ return BP_RESULT_FAILURE;
+
+ return bp->cmd_tbl.dac2_encoder_control(
+ bp, cntl->action == ENCODER_CONTROL_ENABLE,
+ cntl->pixel_clock, ATOM_DAC1_PS2);
+ }
+
if (!bp->cmd_tbl.dig_encoder_control)
return BP_RESULT_FAILURE;
--
2.50.1
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