From 0f6ca3bac44dd6c16e3b4c484243bbb1dad3f6a7 Mon Sep 17 00:00:00 2001 From: Eric Bernstein Date: Tue, 8 May 2018 16:20:52 -0400 Subject: [PATCH] drm/amd/display: Add function to get optc active size Signed-off-by: Eric Bernstein Reviewed-by: Tony Cheng Acked-by: Harry Wentland Signed-off-by: Alex Deucher --- .../gpu/drm/amd/display/dc/dcn10/dcn10_optc.c | 32 +++++++++++++++++++ .../gpu/drm/amd/display/dc/dcn10/dcn10_optc.h | 4 +++ .../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 f2fbce0e3fc5..e6a3ade154b9 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 c62052f46460..59ed272e0c49 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 69cb0a105300..af700c7dac50 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, -- 2.30.2