From: Eric Bernstein <eric.bernstein@amd.com>
Date: Tue, 8 May 2018 16:20:52 -0400
Subject: drm/amd/display: Add function to get optc active size
Git-commit: 0f6ca3bac44dd6c16e3b4c484243bbb1dad3f6a7
Patch-mainline: v4.19-rc1
References: FATE#326289 FATE#326079 FATE#326049 FATE#322398 FATE#326166
Signed-off-by: Eric Bernstein <eric.bernstein@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Petr Tesarik <ptesarik@suse.com>
---
drivers/gpu/drm/amd/display/dc/dcn10/dcn10_optc.c | 32 +++++++++++++++
drivers/gpu/drm/amd/display/dc/dcn10/dcn10_optc.h | 4 +
drivers/gpu/drm/amd/display/dc/inc/hw/timing_generator.h | 3 +
3 files changed, 39 insertions(+)
--- a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_optc.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_optc.c
@@ -1257,6 +1257,37 @@ void optc1_read_otg_state(struct optc *o
OPTC_UNDERFLOW_OCCURRED_STATUS, &s->underflow_occurred_status);
}
+bool optc1_get_otg_active_size(struct timing_generator *optc,
+ uint32_t *otg_active_width,
+ uint32_t *otg_active_height)
+{
+ uint32_t otg_enabled;
+ uint32_t v_blank_start;
+ uint32_t v_blank_end;
+ uint32_t h_blank_start;
+ uint32_t h_blank_end;
+ struct optc *optc1 = DCN10TG_FROM_TG(optc);
+
+
+ REG_GET(OTG_CONTROL,
+ OTG_MASTER_EN, &otg_enabled);
+
+ if (otg_enabled == 0)
+ return false;
+
+ REG_GET_2(OTG_V_BLANK_START_END,
+ OTG_V_BLANK_START, &v_blank_start,
+ OTG_V_BLANK_END, &v_blank_end);
+
+ REG_GET_2(OTG_H_BLANK_START_END,
+ OTG_H_BLANK_START, &h_blank_start,
+ OTG_H_BLANK_END, &h_blank_end);
+
+ *otg_active_width = v_blank_start - v_blank_end;
+ *otg_active_height = h_blank_start - h_blank_end;
+ return true;
+}
+
void optc1_clear_optc_underflow(struct timing_generator *optc)
{
struct optc *optc1 = DCN10TG_FROM_TG(optc);
@@ -1305,6 +1336,7 @@ static const struct timing_generator_fun
.get_position = optc1_get_position,
.get_frame_count = optc1_get_vblank_counter,
.get_scanoutpos = optc1_get_crtc_scanoutpos,
+ .get_otg_active_size = optc1_get_otg_active_size,
.set_early_control = optc1_set_early_control,
/* used by enable_timing_synchronization. Not need for FPGA */
.wait_for_state = optc1_wait_for_state,
--- a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_optc.h
+++ b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_optc.h
@@ -507,4 +507,8 @@ bool optc1_is_optc_underflow_occurred(st
void optc1_set_blank_data_double_buffer(struct timing_generator *optc, bool enable);
+bool optc1_get_otg_active_size(struct timing_generator *optc,
+ uint32_t *otg_active_width,
+ uint32_t *otg_active_height);
+
#endif /* __DC_TIMING_GENERATOR_DCN10_H__ */
--- a/drivers/gpu/drm/amd/display/dc/inc/hw/timing_generator.h
+++ b/drivers/gpu/drm/amd/display/dc/inc/hw/timing_generator.h
@@ -156,6 +156,9 @@ struct timing_generator_funcs {
uint32_t *v_blank_end,
uint32_t *h_position,
uint32_t *v_position);
+ bool (*get_otg_active_size)(struct timing_generator *optc,
+ uint32_t *otg_active_width,
+ uint32_t *otg_active_height);
void (*set_early_control)(struct timing_generator *tg,
uint32_t early_cntl);
void (*wait_for_state)(struct timing_generator *tg,