diff options
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dcn32/dcn32_dio_stream_encoder.c | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_dio_stream_encoder.c b/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_dio_stream_encoder.c index d19fc93dbc75..7d09c62a405a 100644 --- a/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_dio_stream_encoder.c +++ b/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_dio_stream_encoder.c @@ -421,6 +421,33 @@ static void enc32_set_dig_input_mode(struct stream_encoder *enc, unsigned int pi REG_UPDATE(DIG_FIFO_CTRL0, DIG_FIFO_OUTPUT_PIXEL_MODE, pix_per_container == 2 ? 0x1 : 0x0); } +static void enc32_reset_fifo(struct stream_encoder *enc, bool reset) +{ + struct dcn10_stream_encoder *enc1 = DCN10STRENC_FROM_STRENC(enc); + uint32_t reset_val = reset ? 1 : 0; + uint32_t is_symclk_on; + + REG_UPDATE(DIG_FIFO_CTRL0, DIG_FIFO_RESET, reset_val); + REG_GET(DIG_FE_CNTL, DIG_SYMCLK_FE_ON, &is_symclk_on); + + if (is_symclk_on) + REG_WAIT(DIG_FIFO_CTRL0, DIG_FIFO_RESET_DONE, reset_val, 10, 5000); + else + udelay(10); +} + +static void enc32_enable_fifo(struct stream_encoder *enc) +{ + struct dcn10_stream_encoder *enc1 = DCN10STRENC_FROM_STRENC(enc); + + REG_UPDATE(DIG_FIFO_CTRL0, DIG_FIFO_READ_START_LEVEL, 0x7); + + enc32_reset_fifo(enc, true); + enc32_reset_fifo(enc, false); + + REG_UPDATE(DIG_FIFO_CTRL0, DIG_FIFO_ENABLE, 1); +} + static const struct stream_encoder_funcs dcn32_str_enc_funcs = { .dp_set_odm_combine = enc32_dp_set_odm_combine, @@ -466,6 +493,7 @@ static const struct stream_encoder_funcs dcn32_str_enc_funcs = { .hdmi_reset_stream_attribute = enc1_reset_hdmi_stream_attribute, .set_input_mode = enc32_set_dig_input_mode, + .enable_fifo = enc32_enable_fifo, }; void dcn32_dio_stream_encoder_construct( |