From 701ed303b2c064a529277a6b1b53fccb53fe758b Mon Sep 17 00:00:00 2001 From: Charlene Liu Date: Tue, 9 Jan 2018 17:24:10 -0500 Subject: [PATCH] drm/amd/display: disable az_clock_gating for endpoint register access only Signed-off-by: Charlene Liu Reviewed-by: Krunoslav Kovac Acked-by: Harry Wentland Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/display/dc/dce/dce_audio.c | 18 +++++++++++++++++- 1 file changed, 17 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/amd/display/dc/dce/dce_audio.c b/drivers/gpu/drm/amd/display/dc/dce/dce_audio.c index 0df9ecb2710c..e366bfd7cf6f 100644 --- a/drivers/gpu/drm/amd/display/dc/dce/dce_audio.c +++ b/drivers/gpu/drm/amd/display/dc/dce/dce_audio.c @@ -359,7 +359,10 @@ void dce_aud_az_enable(struct audio *audio) AUDIO_ENABLED); AZ_REG_WRITE(AZALIA_F0_CODEC_PIN_CONTROL_HOT_PLUG_CONTROL, value); - value = AZ_REG_READ(AZALIA_F0_CODEC_PIN_CONTROL_HOT_PLUG_CONTROL); + set_reg_field_value(value, 0, + AZALIA_F0_CODEC_PIN_CONTROL_HOT_PLUG_CONTROL, + CLOCK_GATING_DISABLE); + AZ_REG_WRITE(AZALIA_F0_CODEC_PIN_CONTROL_HOT_PLUG_CONTROL, value); dm_logger_write(CTX->logger, LOG_HW_AUDIO, "\n\t========= AUDIO:dce_aud_az_enable: index: %u data: 0x%x\n", @@ -372,6 +375,10 @@ void dce_aud_az_disable(struct audio *audio) struct dce_audio *aud = DCE_AUD(audio); value = AZ_REG_READ(AZALIA_F0_CODEC_PIN_CONTROL_HOT_PLUG_CONTROL); + set_reg_field_value(value, 1, + AZALIA_F0_CODEC_PIN_CONTROL_HOT_PLUG_CONTROL, + CLOCK_GATING_DISABLE); + AZ_REG_WRITE(AZALIA_F0_CODEC_PIN_CONTROL_HOT_PLUG_CONTROL, value); set_reg_field_value(value, 0, AZALIA_F0_CODEC_PIN_CONTROL_HOT_PLUG_CONTROL, @@ -716,6 +723,11 @@ void dce_aud_az_configure( DESCRIPTION17); AZ_REG_WRITE(AZALIA_F0_CODEC_PIN_CONTROL_SINK_INFO8, value); + value = AZ_REG_READ(AZALIA_F0_CODEC_PIN_CONTROL_HOT_PLUG_CONTROL); + set_reg_field_value(value, 0, + AZALIA_F0_CODEC_PIN_CONTROL_HOT_PLUG_CONTROL, + CLOCK_GATING_DISABLE); + AZ_REG_WRITE(AZALIA_F0_CODEC_PIN_CONTROL_HOT_PLUG_CONTROL, value); } /* @@ -897,6 +909,10 @@ void dce_aud_hw_init( REG_UPDATE_2(AZALIA_F0_CODEC_FUNCTION_PARAMETER_POWER_STATES, CLKSTOP, 1, EPSS, 1); + set_reg_field_value(value, 0, + AZALIA_F0_CODEC_PIN_CONTROL_HOT_PLUG_CONTROL, + CLOCK_GATING_DISABLE); + AZ_REG_WRITE(AZALIA_F0_CODEC_PIN_CONTROL_HOT_PLUG_CONTROL, value); } static const struct audio_funcs funcs = { -- 2.11.0