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From 873a1fd3c64ea82ba4ca184715316f507b61fe00 Mon Sep 17 00:00:00 2001
From: Eric Bernstein <eric.bernstein@amd.com>
Date: Tue, 8 May 2018 16:20:52 -0400
Subject: [PATCH 4533/5725] drm/amd/display: Add function to get optc active
size
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>
---
drivers/gpu/drm/amd/display/dc/dcn10/dcn10_optc.c | 32 ++++++++++++++++++++++
drivers/gpu/drm/amd/display/dc/dcn10/dcn10_optc.h | 4 +++
.../drm/amd/display/dc/inc/hw/timing_generator.h | 3 ++
3 files changed, 39 insertions(+)
diff --git a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_optc.c b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_optc.c
index f2fbce0..e6a3ade 100644
--- 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 *optc1,
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_funcs dcn10_tg_funcs = {
.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,
diff --git a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_optc.h b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_optc.h
index c62052f..59ed272 100644
--- 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(struct timing_generator *optc);
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__ */
diff --git a/drivers/gpu/drm/amd/display/dc/inc/hw/timing_generator.h b/drivers/gpu/drm/amd/display/dc/inc/hw/timing_generator.h
index 69cb0a1..af700c7 100644
--- 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,
--
2.7.4
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